Fix BSSN C gauge RHS parity

Fix lower-order C lopsided boundary fallbacks
Fix eighth-order C derivative and lopsided stencils
2026-05-15 18:02:03 +08:00 · 2026-05-14 21:35:25 +08:00 · 2026-05-14 20:32:53 +08:00 · 2026-05-14 16:00:11 +08:00 · 2026-05-14 15:19:36 +08:00 · 2026-05-14 14:09:16 +08:00
231 changed files with 192806 additions and 186675 deletions
--- a/.gitignore
+++ b/.gitignore
@@ -1,6 +1,6 @@
 __pycache__
 GW150914
-GW150914-origin
+GW150914*
 docs
 *.tmp
-
+.codex
--- a/.idea/vcs.xml
+++ b/.idea/vcs.xml
@@ -1,6 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<project version="4">
-  <component name="VcsDirectoryMappings">
-    <mapping directory="" vcs="Git" />
-  </component>
-</project>
--- a/AMSS_NCKU_Program.py
+++ b/AMSS_NCKU_Program.py
@@ -126,6 +126,11 @@ setup.generate_AMSSNCKU_input()
 #inputvalue = input()  ## Wait for user input (press Enter) to proceed
 #print()

+setup.print_puncture_information()
+
+
+##################################################################
+
 ## Generate AMSS-NCKU program input files based on the configured parameters

 print(                                                                                   )
@@ -172,6 +177,9 @@ print( " AMSS-NCKU macro file macrodef.h has been generated. " )
 generate_macrodef.generate_macrodef_fh()
 print( " AMSS-NCKU macro file macrodef.fh has been generated. " )

+generate_macrodef.generate_build_config()
+print( " AMSS-NCKU build config AMSS_NCKU_build.mk has been generated. " )
+

 ##################################################################

@@ -214,9 +222,11 @@ shutil.copytree(AMSS_NCKU_source_path, AMSS_NCKU_source_copy)

 macrodef_h_path  = os.path.join(File_directory, "macrodef.h")
 macrodef_fh_path = os.path.join(File_directory, "macrodef.fh")
+build_config_path = os.path.join(File_directory, "AMSS_NCKU_build.mk")

 shutil.copy2(macrodef_h_path,  AMSS_NCKU_source_copy)
 shutil.copy2(macrodef_fh_path, AMSS_NCKU_source_copy)
+shutil.copy2(build_config_path, AMSS_NCKU_source_copy)

 # Notes on copying files:
 # shutil.copy2 preserves file metadata such as modification time.
@@ -307,7 +317,7 @@ if (input_data.Initial_Data_Method == "Ansorg-TwoPuncture" ):
    
    import generate_TwoPuncture_input
    
-    generate_TwoPuncture_input.generate_AMSSNCKU_TwoPuncture_input(numerical_grid.puncture_data)
+    generate_TwoPuncture_input.generate_AMSSNCKU_TwoPuncture_input()
    
    print(                                                                                              )
    print( " The input parfile for the TwoPunctureABE executable has been generated. " )
@@ -349,7 +359,7 @@ if (input_data.Initial_Data_Method == "Ansorg-TwoPuncture" ):

 import renew_puncture_parameter
    
-renew_puncture_parameter.append_AMSSNCKU_BSSN_input(File_directory, output_directory, numerical_grid.puncture_data)
+renew_puncture_parameter.append_AMSSNCKU_BSSN_input(File_directory, output_directory)


 ## Generated AMSS-NCKU input filename
--- a/AMSS_NCKU_Program_Plot.py
+++ b/AMSS_NCKU_Program_Plot.py
@@ -0,0 +1,100 @@
+##################################################################
+##
+## AMSS-NCKU Plot-Only Restart Script
+## Author: Xiaoqu / Claude
+## 2026/05/12
+##
+## This script checks for existing output data from AMSS_NCKU_Program.py.
+## If data exists, it skips all computation and goes directly to plotting,
+## saving time when plotting was interrupted.
+## If no data is found, it exits with a message.
+##
+##################################################################
+
+## Guard against re-execution by multiprocessing child processes.
+if __name__ != '__main__':
+    import sys as _sys
+    _sys.exit(0)
+
+
+import os
+import sys
+
+import AMSS_NCKU_Input as input_data
+
+##################################################################
+
+## Construct paths from input configuration
+File_directory         = os.path.join(input_data.File_directory)
+output_directory       = os.path.join(File_directory, "AMSS_NCKU_output")
+binary_results_directory = os.path.join(output_directory, input_data.Output_directory)
+figure_directory       = os.path.join(File_directory, "figure")
+
+##################################################################
+
+## Check whether the required output data files exist
+
+required_files = [
+    os.path.join(binary_results_directory, "bssn_BH.dat"),
+    os.path.join(binary_results_directory, "bssn_ADMQs.dat"),
+    os.path.join(binary_results_directory, "bssn_psi4.dat"),
+    os.path.join(binary_results_directory, "bssn_constraint.dat"),
+]
+
+missing_files = [f for f in required_files if not os.path.exists(f)]
+
+if missing_files:
+    print(" No existing AMSS_NCKU_Program.py output data found. ")
+    print(" The following required files are missing: ")
+    for f in missing_files:
+        print(f"   {f}")
+    print()
+    print(" Please run AMSS_NCKU_Program.py first to generate the simulation data. ")
+    print(" Exiting. ")
+    sys.exit(1)
+
+print(" Found existing AMSS_NCKU_Program.py output data. "          )
+print(" Skipping all computation and going directly to plotting. " )
+print()
+
+## Ensure the figure directory exists (it should, but be safe)
+os.makedirs(figure_directory, exist_ok=True)
+
+##################################################################
+
+## Plot the AMSS-NCKU program results
+
+import plot_xiaoqu
+import plot_GW_strain_amplitude_xiaoqu
+from parallel_plot_helper import run_plot_tasks_parallel
+
+plot_tasks = []
+
+## Plot black hole trajectory
+plot_tasks.append((plot_xiaoqu.generate_puncture_orbit_plot,   (binary_results_directory, figure_directory)))
+plot_tasks.append((plot_xiaoqu.generate_puncture_orbit_plot3D, (binary_results_directory, figure_directory)))
+
+## Plot black hole separation vs. time
+plot_tasks.append((plot_xiaoqu.generate_puncture_distence_plot, (binary_results_directory, figure_directory)))
+
+## Plot gravitational waveforms (psi4 and strain amplitude)
+for i in range(input_data.Detector_Number):
+    plot_tasks.append((plot_xiaoqu.generate_gravitational_wave_psi4_plot, (binary_results_directory, figure_directory, i)))
+    plot_tasks.append((plot_GW_strain_amplitude_xiaoqu.generate_gravitational_wave_amplitude_plot, (binary_results_directory, figure_directory, i)))
+
+## Plot ADM mass evolution
+for i in range(input_data.Detector_Number):
+    plot_tasks.append((plot_xiaoqu.generate_ADMmass_plot, (binary_results_directory, figure_directory, i)))
+
+## Plot Hamiltonian constraint violation over time
+for i in range(input_data.grid_level):
+    plot_tasks.append((plot_xiaoqu.generate_constraint_check_plot, (binary_results_directory, figure_directory, i)))
+
+run_plot_tasks_parallel(plot_tasks)
+
+## Plot stored binary data (runs serially, not in the parallel pool)
+plot_xiaoqu.generate_binary_data_plot(binary_results_directory, figure_directory)
+
+print()
+print(" Plotting completed successfully. ")
+print()
--- a/AMSS_NCKU_source/Initial_Data_Solver/Ansorg.C
+++ b/AMSS_NCKU_source/Initial_Data_Solver/Ansorg.C
--- a/AMSS_NCKU_source/Initial_Data_Solver/Ansorg.h
+++ b/AMSS_NCKU_source/Initial_Data_Solver/Ansorg.h
--- a/AMSS_NCKU_source/AHF_Direct/BH_diagnostics.C
+++ b/AMSS_NCKU_source/AHF_Direct/BH_diagnostics.C
--- a/AMSS_NCKU_source/AHF_Direct/BH_diagnostics.h
+++ b/AMSS_NCKU_source/AHF_Direct/BH_diagnostics.h
--- a/AMSS_NCKU_source/BSSN/lopsided_c.C
+++ b/AMSS_NCKU_source/BSSN/lopsided_c.C
@@ -1,255 +0,0 @@
-#include "tool.h"
-/*
- * 你需要提供 symmetry_bd 的 C 版本（或 Fortran 绑到 C 的接口）。
- * Fortran: call symmetry_bd(3,ex,f,fh,SoA)
- *
- * 约定：
- *   nghost = 3
- *   ex[3]  = {ex1,ex2,ex3}
- *   f      = 原始网格 (ex1*ex2*ex3)
- *   fh     = 扩展网格 ((ex1+3)*(ex2+3)*(ex3+3))，对应 Fortran 的 (-2:ex1, ...)
- *   SoA[3] = 输入参数
- */
-void lopsided(const int ex[3],
-              const double *X, const double *Y, const double *Z,
-              const double *f, double *f_rhs,
-              const double *Sfx, const double *Sfy, const double *Sfz,
-              int Symmetry, const double SoA[3])
-{
-    const double ZEO = 0.0, ONE = 1.0, F3 = 3.0;
-    const double TWO = 2.0, F6 = 6.0, F18 = 18.0;
-    const double F12 = 12.0, F10 = 10.0, EIT = 8.0;
-
-    const int NO_SYMM = 0, EQ_SYMM = 1, OCTANT = 2;
-    (void)OCTANT; // 这里和 Fortran 一样只是定义了不用也没关系
-
-    const int ex1 = ex[0], ex2 = ex[1], ex3 = ex[2];
-
-    // 对应 Fortran: dX = X(2)-X(1)  （Fortran 1-based）
-    // C: X[1]-X[0]
-    const double dX = X[1] - X[0];
-    const double dY = Y[1] - Y[0];
-    const double dZ = Z[1] - Z[0];
-
-    const double d12dx = ONE / F12 / dX;
-    const double d12dy = ONE / F12 / dY;
-    const double d12dz = ONE / F12 / dZ;
-
-    // Fortran 里算了 d2dx/d2dy/d2dz 但本 subroutine 里没用到（保持一致也算出来）
-    const double d2dx  = ONE / TWO / dX;
-    const double d2dy  = ONE / TWO / dY;
-    const double d2dz  = ONE / TWO / dZ;
-    (void)d2dx; (void)d2dy; (void)d2dz;
-
-    // Fortran:
-    // imax = ex(1); jmax = ex(2); kmax = ex(3)
-    const int imaxF = ex1;
-    const int jmaxF = ex2;
-    const int kmaxF = ex3;
-
-    // Fortran:
-    // imin=jmin=kmin=1; 若满足对称条件则设为 -2
-    int iminF = 1, jminF = 1, kminF = 1;
-    if (Symmetry > NO_SYMM && fabs(Z[0]) < dZ) kminF = -2;
-    if (Symmetry > EQ_SYMM && fabs(X[0]) < dX) iminF = -2;
-    if (Symmetry > EQ_SYMM && fabs(Y[0]) < dY) jminF = -2;
-
-    // 分配 fh：大小 (ex1+3)*(ex2+3)*(ex3+3)
-    const size_t nx = (size_t)ex1 + 3;
-    const size_t ny = (size_t)ex2 + 3;
-    const size_t nz = (size_t)ex3 + 3;
-    const size_t fh_size = nx * ny * nz;
-
-    double *fh = (double*)malloc(fh_size * sizeof(double));
-    if (!fh) return; // 内存不足：直接返回（你也可以改成 abort/报错）
-
-    // Fortran: call symmetry_bd(3,ex,f,fh,SoA)
-    symmetry_bd(3, ex, f, fh, SoA);
-
-    /*
-     * Fortran 主循环：
-     * do k=1,ex(3)-1
-     * do j=1,ex(2)-1
-     * do i=1,ex(1)-1
-     *
-     * 转成 C 0-based：
-     * k0 = 0..ex3-2, j0 = 0..ex2-2, i0 = 0..ex1-2
-     *
-     * 并且 Fortran 里的 i/j/k 在 fh 访问时，仍然是 Fortran 索引值：
-     * iF=i0+1, jF=j0+1, kF=k0+1
-     */
-    for (int k0 = 0; k0 <= ex3 - 2; ++k0) {
-        const int kF = k0 + 1;
-        for (int j0 = 0; j0 <= ex2 - 2; ++j0) {
-            const int jF = j0 + 1;
-            for (int i0 = 0; i0 <= ex1 - 2; ++i0) {
-                const int iF = i0 + 1;
-
-                const size_t p = idx_ex(i0, j0, k0, ex);
-
-                // ---------------- x direction ----------------
-                const double sfx = Sfx[p];
-                if (sfx > ZEO) {
-                    // Fortran: if(i+3 <= imax)
-                    // iF+3 <= ex1  <=> i0+4 <= ex1 <=> i0 <= ex1-4
-                    if (i0 <= ex1 - 4) {
-                        f_rhs[p] += sfx * d12dx *
-                            (-F3  * fh[idx_fh_F(iF - 1, jF, kF, ex)]
-                             -F10 * fh[idx_fh_F(iF    , jF, kF, ex)]
-                             +F18 * fh[idx_fh_F(iF + 1, jF, kF, ex)]
-                             -F6  * fh[idx_fh_F(iF + 2, jF, kF, ex)]
-                             +      fh[idx_fh_F(iF + 3, jF, kF, ex)]);
-                    }
-                    // elseif(i+2 <= imax)  <=> i0 <= ex1-3
-                    else if (i0 <= ex1 - 3) {
-                        f_rhs[p] += sfx * d12dx *
-                            ( fh[idx_fh_F(iF - 2, jF, kF, ex)]
-                             -EIT * fh[idx_fh_F(iF - 1, jF, kF, ex)]
-                             +EIT * fh[idx_fh_F(iF + 1, jF, kF, ex)]
-                             -      fh[idx_fh_F(iF + 2, jF, kF, ex)]);
-                    }
-                    // elseif(i+1 <= imax)  <=> i0 <= ex1-2（循环里总成立）
-                    else if (i0 <= ex1 - 2) {
-                        f_rhs[p] -= sfx * d12dx *
-                            (-F3  * fh[idx_fh_F(iF + 1, jF, kF, ex)]
-                             -F10 * fh[idx_fh_F(iF    , jF, kF, ex)]
-                             +F18 * fh[idx_fh_F(iF - 1, jF, kF, ex)]
-                             -F6  * fh[idx_fh_F(iF - 2, jF, kF, ex)]
-                             +      fh[idx_fh_F(iF - 3, jF, kF, ex)]);
-                    }
-                } else if (sfx < ZEO) {
-                    // Fortran: if(i-3 >= imin)
-                    // (iF-3) >= iminF  <=> (i0-2) >= iminF
-                    if ((i0 - 2) >= iminF) {
-                        f_rhs[p] -= sfx * d12dx *
-                            (-F3  * fh[idx_fh_F(iF + 1, jF, kF, ex)]
-                             -F10 * fh[idx_fh_F(iF    , jF, kF, ex)]
-                             +F18 * fh[idx_fh_F(iF - 1, jF, kF, ex)]
-                             -F6  * fh[idx_fh_F(iF - 2, jF, kF, ex)]
-                             +      fh[idx_fh_F(iF - 3, jF, kF, ex)]);
-                    }
-                    // elseif(i-2 >= imin) <=> (i0-1) >= iminF
-                    else if ((i0 - 1) >= iminF) {
-                        f_rhs[p] += sfx * d12dx *
-                            ( fh[idx_fh_F(iF - 2, jF, kF, ex)]
-                             -EIT * fh[idx_fh_F(iF - 1, jF, kF, ex)]
-                             +EIT * fh[idx_fh_F(iF + 1, jF, kF, ex)]
-                             -      fh[idx_fh_F(iF + 2, jF, kF, ex)]);
-                    }
-                    // elseif(i-1 >= imin) <=> i0 >= iminF
-                    else if (i0 >= iminF) {
-                        f_rhs[p] += sfx * d12dx *
-                            (-F3  * fh[idx_fh_F(iF - 1, jF, kF, ex)]
-                             -F10 * fh[idx_fh_F(iF    , jF, kF, ex)]
-                             +F18 * fh[idx_fh_F(iF + 1, jF, kF, ex)]
-                             -F6  * fh[idx_fh_F(iF + 2, jF, kF, ex)]
-                             +      fh[idx_fh_F(iF + 3, jF, kF, ex)]);
-                    }
-                }
-
-                // ---------------- y direction ----------------
-                const double sfy = Sfy[p];
-                if (sfy > ZEO) {
-                    // jF+3 <= ex2 <=> j0+4 <= ex2 <=> j0 <= ex2-4
-                    if (j0 <= ex2 - 4) {
-                        f_rhs[p] += sfy * d12dy *
-                            (-F3  * fh[idx_fh_F(iF, jF - 1, kF, ex)]
-                             -F10 * fh[idx_fh_F(iF, jF    , kF, ex)]
-                             +F18 * fh[idx_fh_F(iF, jF + 1, kF, ex)]
-                             -F6  * fh[idx_fh_F(iF, jF + 2, kF, ex)]
-                             +      fh[idx_fh_F(iF, jF + 3, kF, ex)]);
-                    } else if (j0 <= ex2 - 3) {
-                        f_rhs[p] += sfy * d12dy *
-                            ( fh[idx_fh_F(iF, jF - 2, kF, ex)]
-                             -EIT * fh[idx_fh_F(iF, jF - 1, kF, ex)]
-                             +EIT * fh[idx_fh_F(iF, jF + 1, kF, ex)]
-                             -      fh[idx_fh_F(iF, jF + 2, kF, ex)]);
-                    } else if (j0 <= ex2 - 2) {
-                        f_rhs[p] -= sfy * d12dy *
-                            (-F3  * fh[idx_fh_F(iF, jF + 1, kF, ex)]
-                             -F10 * fh[idx_fh_F(iF, jF    , kF, ex)]
-                             +F18 * fh[idx_fh_F(iF, jF - 1, kF, ex)]
-                             -F6  * fh[idx_fh_F(iF, jF - 2, kF, ex)]
-                             +      fh[idx_fh_F(iF, jF - 3, kF, ex)]);
-                    }
-                } else if (sfy < ZEO) {
-                    if ((j0 - 2) >= jminF) {
-                        f_rhs[p] -= sfy * d12dy *
-                            (-F3  * fh[idx_fh_F(iF, jF + 1, kF, ex)]
-                             -F10 * fh[idx_fh_F(iF, jF    , kF, ex)]
-                             +F18 * fh[idx_fh_F(iF, jF - 1, kF, ex)]
-                             -F6  * fh[idx_fh_F(iF, jF - 2, kF, ex)]
-                             +      fh[idx_fh_F(iF, jF - 3, kF, ex)]);
-                    } else if ((j0 - 1) >= jminF) {
-                        f_rhs[p] += sfy * d12dy *
-                            ( fh[idx_fh_F(iF, jF - 2, kF, ex)]
-                             -EIT * fh[idx_fh_F(iF, jF - 1, kF, ex)]
-                             +EIT * fh[idx_fh_F(iF, jF + 1, kF, ex)]
-                             -      fh[idx_fh_F(iF, jF + 2, kF, ex)]);
-                    } else if (j0 >= jminF) {
-                        f_rhs[p] += sfy * d12dy *
-                            (-F3  * fh[idx_fh_F(iF, jF - 1, kF, ex)]
-                             -F10 * fh[idx_fh_F(iF, jF    , kF, ex)]
-                             +F18 * fh[idx_fh_F(iF, jF + 1, kF, ex)]
-                             -F6  * fh[idx_fh_F(iF, jF + 2, kF, ex)]
-                             +      fh[idx_fh_F(iF, jF + 3, kF, ex)]);
-                    }
-                }
-
-                // ---------------- z direction ----------------
-                const double sfz = Sfz[p];
-                if (sfz > ZEO) {
-                    if (k0 <= ex3 - 4) {
-                        f_rhs[p] += sfz * d12dz *
-                            (-F3  * fh[idx_fh_F(iF, jF, kF - 1, ex)]
-                             -F10 * fh[idx_fh_F(iF, jF, kF    , ex)]
-                             +F18 * fh[idx_fh_F(iF, jF, kF + 1, ex)]
-                             -F6  * fh[idx_fh_F(iF, jF, kF + 2, ex)]
-                             +      fh[idx_fh_F(iF, jF, kF + 3, ex)]);
-                    } else if (k0 <= ex3 - 3) {
-                        f_rhs[p] += sfz * d12dz *
-                            ( fh[idx_fh_F(iF, jF, kF - 2, ex)]
-                             -EIT * fh[idx_fh_F(iF, jF, kF - 1, ex)]
-                             +EIT * fh[idx_fh_F(iF, jF, kF + 1, ex)]
-                             -      fh[idx_fh_F(iF, jF, kF + 2, ex)]);
-                    } else if (k0 <= ex3 - 2) {
-                        f_rhs[p] -= sfz * d12dz *
-                            (-F3  * fh[idx_fh_F(iF, jF, kF + 1, ex)]
-                             -F10 * fh[idx_fh_F(iF, jF, kF    , ex)]
-                             +F18 * fh[idx_fh_F(iF, jF, kF - 1, ex)]
-                             -F6  * fh[idx_fh_F(iF, jF, kF - 2, ex)]
-                             +      fh[idx_fh_F(iF, jF, kF - 3, ex)]);
-                    }
-                } else if (sfz < ZEO) {
-                    if ((k0 - 2) >= kminF) {
-                        f_rhs[p] -= sfz * d12dz *
-                            (-F3  * fh[idx_fh_F(iF, jF, kF + 1, ex)]
-                             -F10 * fh[idx_fh_F(iF, jF, kF    , ex)]
-                             +F18 * fh[idx_fh_F(iF, jF, kF - 1, ex)]
-                             -F6  * fh[idx_fh_F(iF, jF, kF - 2, ex)]
-                             +      fh[idx_fh_F(iF, jF, kF - 3, ex)]);
-                    } else if ((k0 - 1) >= kminF) {
-                        f_rhs[p] += sfz * d12dz *
-                            ( fh[idx_fh_F(iF, jF, kF - 2, ex)]
-                             -EIT * fh[idx_fh_F(iF, jF, kF - 1, ex)]
-                             +EIT * fh[idx_fh_F(iF, jF, kF + 1, ex)]
-                             -      fh[idx_fh_F(iF, jF, kF + 2, ex)]);
-                    } else if (k0 >= kminF) {
-                        f_rhs[p] += sfz * d12dz *
-                            (-F3  * fh[idx_fh_F(iF, jF, kF - 1, ex)]
-                             -F10 * fh[idx_fh_F(iF, jF, kF    , ex)]
-                             +F18 * fh[idx_fh_F(iF, jF, kF + 1, ex)]
-                             -F6  * fh[idx_fh_F(iF, jF, kF + 2, ex)]
-                             +      fh[idx_fh_F(iF, jF, kF + 3, ex)]);
-                    }
-                }
-            }
-        }
-    }
-    free(fh);
-}
-
-
-
-
-
--- a/AMSS_NCKU_source/BSSN/lopsided_kodis_c.C
+++ b/AMSS_NCKU_source/BSSN/lopsided_kodis_c.C
@@ -1,248 +0,0 @@
-#include "tool.h"
-
-/*
- * Combined advection (lopsided) + KO dissipation (kodis).
- * Uses one shared symmetry_bd buffer per call.
- */
-void lopsided_kodis(const int ex[3],
-                    const double *X, const double *Y, const double *Z,
-                    const double *f, double *f_rhs,
-                    const double *Sfx, const double *Sfy, const double *Sfz,
-                    int Symmetry, const double SoA[3], double eps)
-{
-    const double ZEO = 0.0, ONE = 1.0, F3 = 3.0;
-    const double F6 = 6.0, F18 = 18.0;
-    const double F12 = 12.0, F10 = 10.0, EIT = 8.0;
-    const double SIX = 6.0, FIT = 15.0, TWT = 20.0;
-    const double cof = 64.0; // 2^6
-
-    const int NO_SYMM = 0, EQ_SYMM = 1;
-
-    const int ex1 = ex[0], ex2 = ex[1], ex3 = ex[2];
-
-    const double dX = X[1] - X[0];
-    const double dY = Y[1] - Y[0];
-    const double dZ = Z[1] - Z[0];
-
-    const double d12dx = ONE / F12 / dX;
-    const double d12dy = ONE / F12 / dY;
-    const double d12dz = ONE / F12 / dZ;
-
-    const int imaxF = ex1;
-    const int jmaxF = ex2;
-    const int kmaxF = ex3;
-
-    int iminF = 1, jminF = 1, kminF = 1;
-    if (Symmetry > NO_SYMM && fabs(Z[0]) < dZ) kminF = -2;
-    if (Symmetry > EQ_SYMM && fabs(X[0]) < dX) iminF = -2;
-    if (Symmetry > EQ_SYMM && fabs(Y[0]) < dY) jminF = -2;
-
-    // fh for Fortran-style domain (-2:ex1,-2:ex2,-2:ex3)
-    const size_t nx = (size_t)ex1 + 3;
-    const size_t ny = (size_t)ex2 + 3;
-    const size_t nz = (size_t)ex3 + 3;
-    const size_t fh_size = nx * ny * nz;
-
-    double *fh = (double*)malloc(fh_size * sizeof(double));
-    if (!fh) return;
-
-    symmetry_bd(3, ex, f, fh, SoA);
-
-    // Advection (same stencil logic as lopsided_c.C)
-    for (int k0 = 0; k0 <= ex3 - 2; ++k0) {
-        const int kF = k0 + 1;
-        for (int j0 = 0; j0 <= ex2 - 2; ++j0) {
-            const int jF = j0 + 1;
-            for (int i0 = 0; i0 <= ex1 - 2; ++i0) {
-                const int iF = i0 + 1;
-                const size_t p = idx_ex(i0, j0, k0, ex);
-
-                const double sfx = Sfx[p];
-                if (sfx > ZEO) {
-                    if (i0 <= ex1 - 4) {
-                        f_rhs[p] += sfx * d12dx *
-                            (-F3  * fh[idx_fh_F(iF - 1, jF, kF, ex)]
-                             -F10 * fh[idx_fh_F(iF    , jF, kF, ex)]
-                             +F18 * fh[idx_fh_F(iF + 1, jF, kF, ex)]
-                             -F6  * fh[idx_fh_F(iF + 2, jF, kF, ex)]
-                             +      fh[idx_fh_F(iF + 3, jF, kF, ex)]);
-                    } else if (i0 <= ex1 - 3) {
-                        f_rhs[p] += sfx * d12dx *
-                            ( fh[idx_fh_F(iF - 2, jF, kF, ex)]
-                             -EIT * fh[idx_fh_F(iF - 1, jF, kF, ex)]
-                             +EIT * fh[idx_fh_F(iF + 1, jF, kF, ex)]
-                             -      fh[idx_fh_F(iF + 2, jF, kF, ex)]);
-                    } else if (i0 <= ex1 - 2) {
-                        f_rhs[p] -= sfx * d12dx *
-                            (-F3  * fh[idx_fh_F(iF + 1, jF, kF, ex)]
-                             -F10 * fh[idx_fh_F(iF    , jF, kF, ex)]
-                             +F18 * fh[idx_fh_F(iF - 1, jF, kF, ex)]
-                             -F6  * fh[idx_fh_F(iF - 2, jF, kF, ex)]
-                             +      fh[idx_fh_F(iF - 3, jF, kF, ex)]);
-                    }
-                } else if (sfx < ZEO) {
-                    if ((i0 - 2) >= iminF) {
-                        f_rhs[p] -= sfx * d12dx *
-                            (-F3  * fh[idx_fh_F(iF + 1, jF, kF, ex)]
-                             -F10 * fh[idx_fh_F(iF    , jF, kF, ex)]
-                             +F18 * fh[idx_fh_F(iF - 1, jF, kF, ex)]
-                             -F6  * fh[idx_fh_F(iF - 2, jF, kF, ex)]
-                             +      fh[idx_fh_F(iF - 3, jF, kF, ex)]);
-                    } else if ((i0 - 1) >= iminF) {
-                        f_rhs[p] += sfx * d12dx *
-                            ( fh[idx_fh_F(iF - 2, jF, kF, ex)]
-                             -EIT * fh[idx_fh_F(iF - 1, jF, kF, ex)]
-                             +EIT * fh[idx_fh_F(iF + 1, jF, kF, ex)]
-                             -      fh[idx_fh_F(iF + 2, jF, kF, ex)]);
-                    } else if (i0 >= iminF) {
-                        f_rhs[p] += sfx * d12dx *
-                            (-F3  * fh[idx_fh_F(iF - 1, jF, kF, ex)]
-                             -F10 * fh[idx_fh_F(iF    , jF, kF, ex)]
-                             +F18 * fh[idx_fh_F(iF + 1, jF, kF, ex)]
-                             -F6  * fh[idx_fh_F(iF + 2, jF, kF, ex)]
-                             +      fh[idx_fh_F(iF + 3, jF, kF, ex)]);
-                    }
-                }
-
-                const double sfy = Sfy[p];
-                if (sfy > ZEO) {
-                    if (j0 <= ex2 - 4) {
-                        f_rhs[p] += sfy * d12dy *
-                            (-F3  * fh[idx_fh_F(iF, jF - 1, kF, ex)]
-                             -F10 * fh[idx_fh_F(iF, jF    , kF, ex)]
-                             +F18 * fh[idx_fh_F(iF, jF + 1, kF, ex)]
-                             -F6  * fh[idx_fh_F(iF, jF + 2, kF, ex)]
-                             +      fh[idx_fh_F(iF, jF + 3, kF, ex)]);
-                    } else if (j0 <= ex2 - 3) {
-                        f_rhs[p] += sfy * d12dy *
-                            ( fh[idx_fh_F(iF, jF - 2, kF, ex)]
-                             -EIT * fh[idx_fh_F(iF, jF - 1, kF, ex)]
-                             +EIT * fh[idx_fh_F(iF, jF + 1, kF, ex)]
-                             -      fh[idx_fh_F(iF, jF + 2, kF, ex)]);
-                    } else if (j0 <= ex2 - 2) {
-                        f_rhs[p] -= sfy * d12dy *
-                            (-F3  * fh[idx_fh_F(iF, jF + 1, kF, ex)]
-                             -F10 * fh[idx_fh_F(iF, jF    , kF, ex)]
-                             +F18 * fh[idx_fh_F(iF, jF - 1, kF, ex)]
-                             -F6  * fh[idx_fh_F(iF, jF - 2, kF, ex)]
-                             +      fh[idx_fh_F(iF, jF - 3, kF, ex)]);
-                    }
-                } else if (sfy < ZEO) {
-                    if ((j0 - 2) >= jminF) {
-                        f_rhs[p] -= sfy * d12dy *
-                            (-F3  * fh[idx_fh_F(iF, jF + 1, kF, ex)]
-                             -F10 * fh[idx_fh_F(iF, jF    , kF, ex)]
-                             +F18 * fh[idx_fh_F(iF, jF - 1, kF, ex)]
-                             -F6  * fh[idx_fh_F(iF, jF - 2, kF, ex)]
-                             +      fh[idx_fh_F(iF, jF - 3, kF, ex)]);
-                    } else if ((j0 - 1) >= jminF) {
-                        f_rhs[p] += sfy * d12dy *
-                            ( fh[idx_fh_F(iF, jF - 2, kF, ex)]
-                             -EIT * fh[idx_fh_F(iF, jF - 1, kF, ex)]
-                             +EIT * fh[idx_fh_F(iF, jF + 1, kF, ex)]
-                             -      fh[idx_fh_F(iF, jF + 2, kF, ex)]);
-                    } else if (j0 >= jminF) {
-                        f_rhs[p] += sfy * d12dy *
-                            (-F3  * fh[idx_fh_F(iF, jF - 1, kF, ex)]
-                             -F10 * fh[idx_fh_F(iF, jF    , kF, ex)]
-                             +F18 * fh[idx_fh_F(iF, jF + 1, kF, ex)]
-                             -F6  * fh[idx_fh_F(iF, jF + 2, kF, ex)]
-                             +      fh[idx_fh_F(iF, jF + 3, kF, ex)]);
-                    }
-                }
-
-                const double sfz = Sfz[p];
-                if (sfz > ZEO) {
-                    if (k0 <= ex3 - 4) {
-                        f_rhs[p] += sfz * d12dz *
-                            (-F3  * fh[idx_fh_F(iF, jF, kF - 1, ex)]
-                             -F10 * fh[idx_fh_F(iF, jF, kF    , ex)]
-                             +F18 * fh[idx_fh_F(iF, jF, kF + 1, ex)]
-                             -F6  * fh[idx_fh_F(iF, jF, kF + 2, ex)]
-                             +      fh[idx_fh_F(iF, jF, kF + 3, ex)]);
-                    } else if (k0 <= ex3 - 3) {
-                        f_rhs[p] += sfz * d12dz *
-                            ( fh[idx_fh_F(iF, jF, kF - 2, ex)]
-                             -EIT * fh[idx_fh_F(iF, jF, kF - 1, ex)]
-                             +EIT * fh[idx_fh_F(iF, jF, kF + 1, ex)]
-                             -      fh[idx_fh_F(iF, jF, kF + 2, ex)]);
-                    } else if (k0 <= ex3 - 2) {
-                        f_rhs[p] -= sfz * d12dz *
-                            (-F3  * fh[idx_fh_F(iF, jF, kF + 1, ex)]
-                             -F10 * fh[idx_fh_F(iF, jF, kF    , ex)]
-                             +F18 * fh[idx_fh_F(iF, jF, kF - 1, ex)]
-                             -F6  * fh[idx_fh_F(iF, jF, kF - 2, ex)]
-                             +      fh[idx_fh_F(iF, jF, kF - 3, ex)]);
-                    }
-                } else if (sfz < ZEO) {
-                    if ((k0 - 2) >= kminF) {
-                        f_rhs[p] -= sfz * d12dz *
-                            (-F3  * fh[idx_fh_F(iF, jF, kF + 1, ex)]
-                             -F10 * fh[idx_fh_F(iF, jF, kF    , ex)]
-                             +F18 * fh[idx_fh_F(iF, jF, kF - 1, ex)]
-                             -F6  * fh[idx_fh_F(iF, jF, kF - 2, ex)]
-                             +      fh[idx_fh_F(iF, jF, kF - 3, ex)]);
-                    } else if ((k0 - 1) >= kminF) {
-                        f_rhs[p] += sfz * d12dz *
-                            ( fh[idx_fh_F(iF, jF, kF - 2, ex)]
-                             -EIT * fh[idx_fh_F(iF, jF, kF - 1, ex)]
-                             +EIT * fh[idx_fh_F(iF, jF, kF + 1, ex)]
-                             -      fh[idx_fh_F(iF, jF, kF + 2, ex)]);
-                    } else if (k0 >= kminF) {
-                        f_rhs[p] += sfz * d12dz *
-                            (-F3  * fh[idx_fh_F(iF, jF, kF - 1, ex)]
-                             -F10 * fh[idx_fh_F(iF, jF, kF    , ex)]
-                             +F18 * fh[idx_fh_F(iF, jF, kF + 1, ex)]
-                             -F6  * fh[idx_fh_F(iF, jF, kF + 2, ex)]
-                             +      fh[idx_fh_F(iF, jF, kF + 3, ex)]);
-                    }
-                }
-            }
-        }
-    }
-
-    // KO dissipation (same domain restriction as kodiss_c.C)
-    if (eps > ZEO) {
-        const int i0_lo = (iminF + 2 > 0) ? iminF + 2 : 0;
-        const int j0_lo = (jminF + 2 > 0) ? jminF + 2 : 0;
-        const int k0_lo = (kminF + 2 > 0) ? kminF + 2 : 0;
-        const int i0_hi = imaxF - 4; // inclusive
-        const int j0_hi = jmaxF - 4;
-        const int k0_hi = kmaxF - 4;
-
-        if (!(i0_lo > i0_hi || j0_lo > j0_hi || k0_lo > k0_hi)) {
-            for (int k0 = k0_lo; k0 <= k0_hi; ++k0) {
-                const int kF = k0 + 1;
-                for (int j0 = j0_lo; j0 <= j0_hi; ++j0) {
-                    const int jF = j0 + 1;
-                    for (int i0 = i0_lo; i0 <= i0_hi; ++i0) {
-                        const int iF = i0 + 1;
-                        const size_t p = idx_ex(i0, j0, k0, ex);
-
-                        const double Dx_term =
-                            ((fh[idx_fh_F(iF - 3, jF, kF, ex)] + fh[idx_fh_F(iF + 3, jF, kF, ex)]) -
-                             SIX * (fh[idx_fh_F(iF - 2, jF, kF, ex)] + fh[idx_fh_F(iF + 2, jF, kF, ex)]) +
-                             FIT * (fh[idx_fh_F(iF - 1, jF, kF, ex)] + fh[idx_fh_F(iF + 1, jF, kF, ex)]) -
-                             TWT *  fh[idx_fh_F(iF,     jF, kF, ex)]) / dX;
-
-                        const double Dy_term =
-                            ((fh[idx_fh_F(iF, jF - 3, kF, ex)] + fh[idx_fh_F(iF, jF + 3, kF, ex)]) -
-                             SIX * (fh[idx_fh_F(iF, jF - 2, kF, ex)] + fh[idx_fh_F(iF, jF + 2, kF, ex)]) +
-                             FIT * (fh[idx_fh_F(iF, jF - 1, kF, ex)] + fh[idx_fh_F(iF, jF + 1, kF, ex)]) -
-                             TWT *  fh[idx_fh_F(iF, jF,     kF, ex)]) / dY;
-
-                        const double Dz_term =
-                            ((fh[idx_fh_F(iF, jF, kF - 3, ex)] + fh[idx_fh_F(iF, jF, kF + 3, ex)]) -
-                             SIX * (fh[idx_fh_F(iF, jF, kF - 2, ex)] + fh[idx_fh_F(iF, jF, kF + 2, ex)]) +
-                             FIT * (fh[idx_fh_F(iF, jF, kF - 1, ex)] + fh[idx_fh_F(iF, jF, kF + 1, ex)]) -
-                             TWT *  fh[idx_fh_F(iF, jF, kF,     ex)]) / dZ;
-
-                        f_rhs[p] += (eps / cof) * (Dx_term + Dy_term + Dz_term);
-                    }
-                }
-            }
-        }
-    }
-
-    free(fh);
-}
--- a/AMSS_NCKU_source/cgh/Block.C
+++ b/AMSS_NCKU_source/cgh/Block.C
--- a/AMSS_NCKU_source/cgh/Block.h
+++ b/AMSS_NCKU_source/cgh/Block.h
--- a/AMSS_NCKU_source/Read_and_Write/DataCT.C
+++ b/AMSS_NCKU_source/Read_and_Write/DataCT.C
--- a/AMSS_NCKU_source/Derivative/fdderivs_c.C
+++ b/AMSS_NCKU_source/Derivative/fdderivs_c.C
@@ -1,332 +0,0 @@
-#include "tool.h"
-void fdderivs(const int ex[3],
-              const double *f,
-              double *fxx, double *fxy, double *fxz,
-              double *fyy, double *fyz, double *fzz,
-              const double *X, const double *Y, const double *Z,
-              double SYM1, double SYM2, double SYM3,
-              int Symmetry, int onoff)
-{
-    (void)onoff;
-
-    const int NO_SYMM = 0, EQ_SYMM = 1;
-    const double ZEO = 0.0, ONE = 1.0, TWO = 2.0;
-    const double F1o4   = 2.5e-1;          // 1/4
-    const double F8     = 8.0;
-    const double F16    = 16.0;
-    const double F30    = 30.0;
-    const double F1o12  = ONE / 12.0;
-    const double F1o144 = ONE / 144.0;
-
-    const int ex1 = ex[0], ex2 = ex[1], ex3 = ex[2];
-
-    const double dX = X[1] - X[0];
-    const double dY = Y[1] - Y[0];
-    const double dZ = Z[1] - Z[0];
-
-    const int imaxF = ex1;
-    const int jmaxF = ex2;
-    const int kmaxF = ex3;
-
-    int iminF = 1, jminF = 1, kminF = 1;
-    if (Symmetry > NO_SYMM && fabs(Z[0]) < dZ) kminF = -1;
-    if (Symmetry > EQ_SYMM && fabs(X[0]) < dX) iminF = -1;
-    if (Symmetry > EQ_SYMM && fabs(Y[0]) < dY) jminF = -1;
-
-    const double SoA[3] = { SYM1, SYM2, SYM3 };
-
-    /* fh: (ex1+2)*(ex2+2)*(ex3+2) because ord=2 */
-    const size_t nx = (size_t)ex1 + 2;
-    const size_t ny = (size_t)ex2 + 2;
-    const size_t nz = (size_t)ex3 + 2;
-    const size_t fh_size = nx * ny * nz;
-
-    static double *fh = NULL;
-    static size_t cap = 0;
-
-    if (fh_size > cap) {
-        free(fh);
-        fh = (double*)aligned_alloc(64, fh_size * sizeof(double));
-        cap = fh_size;
-    }
-    // double *fh = (double*)malloc(fh_size * sizeof(double));
-    if (!fh) return;
-
-    symmetry_bd(2, ex, f, fh, SoA);
-
-    /* 系数：按 Fortran 原式 */
-    const double Sdxdx = ONE / (dX * dX);
-    const double Sdydy = ONE / (dY * dY);
-    const double Sdzdz = ONE / (dZ * dZ);
-
-    const double Fdxdx = F1o12 / (dX * dX);
-    const double Fdydy = F1o12 / (dY * dY);
-    const double Fdzdz = F1o12 / (dZ * dZ);
-
-    const double Sdxdy = F1o4 / (dX * dY);
-    const double Sdxdz = F1o4 / (dX * dZ);
-    const double Sdydz = F1o4 / (dY * dZ);
-
-    const double Fdxdy = F1o144 / (dX * dY);
-    const double Fdxdz = F1o144 / (dX * dZ);
-    const double Fdydz = F1o144 / (dY * dZ);
-
-    /* 只清零不被主循环覆盖的边界面 */
-    {
-        /* 高边界：k0=ex3-1 */
-        for (int j0 = 0; j0 < ex2; ++j0)
-            for (int i0 = 0; i0 < ex1; ++i0) {
-                const size_t p = idx_ex(i0, j0, ex3 - 1, ex);
-                fxx[p]=ZEO; fyy[p]=ZEO; fzz[p]=ZEO;
-                fxy[p]=ZEO; fxz[p]=ZEO; fyz[p]=ZEO;
-            }
-        /* 高边界：j0=ex2-1 */
-        for (int k0 = 0; k0 < ex3 - 1; ++k0)
-            for (int i0 = 0; i0 < ex1; ++i0) {
-                const size_t p = idx_ex(i0, ex2 - 1, k0, ex);
-                fxx[p]=ZEO; fyy[p]=ZEO; fzz[p]=ZEO;
-                fxy[p]=ZEO; fxz[p]=ZEO; fyz[p]=ZEO;
-            }
-        /* 高边界：i0=ex1-1 */
-        for (int k0 = 0; k0 < ex3 - 1; ++k0)
-            for (int j0 = 0; j0 < ex2 - 1; ++j0) {
-                const size_t p = idx_ex(ex1 - 1, j0, k0, ex);
-                fxx[p]=ZEO; fyy[p]=ZEO; fzz[p]=ZEO;
-                fxy[p]=ZEO; fxz[p]=ZEO; fyz[p]=ZEO;
-            }
-
-        /* 低边界：当二阶模板也不可用时，对应 i0/j0/k0=0 面 */
-        if (kminF == 1) {
-            for (int j0 = 0; j0 < ex2; ++j0)
-                for (int i0 = 0; i0 < ex1; ++i0) {
-                    const size_t p = idx_ex(i0, j0, 0, ex);
-                    fxx[p]=ZEO; fyy[p]=ZEO; fzz[p]=ZEO;
-                    fxy[p]=ZEO; fxz[p]=ZEO; fyz[p]=ZEO;
-                }
-        }
-        if (jminF == 1) {
-            for (int k0 = 0; k0 < ex3; ++k0)
-                for (int i0 = 0; i0 < ex1; ++i0) {
-                    const size_t p = idx_ex(i0, 0, k0, ex);
-                    fxx[p]=ZEO; fyy[p]=ZEO; fzz[p]=ZEO;
-                    fxy[p]=ZEO; fxz[p]=ZEO; fyz[p]=ZEO;
-                }
-        }
-        if (iminF == 1) {
-            for (int k0 = 0; k0 < ex3; ++k0)
-                for (int j0 = 0; j0 < ex2; ++j0) {
-                    const size_t p = idx_ex(0, j0, k0, ex);
-                    fxx[p]=ZEO; fyy[p]=ZEO; fzz[p]=ZEO;
-                    fxy[p]=ZEO; fxz[p]=ZEO; fyz[p]=ZEO;
-                }
-        }
-    }
-
-    /*
-     * 两段式：
-     * 1) 二阶可用区域先计算二阶模板
-     * 2) 高阶可用区域再覆盖四阶模板
-     */
-    const int i2_lo = (iminF > 0) ? iminF : 0;
-    const int j2_lo = (jminF > 0) ? jminF : 0;
-    const int k2_lo = (kminF > 0) ? kminF : 0;
-    const int i2_hi = ex1 - 2;
-    const int j2_hi = ex2 - 2;
-    const int k2_hi = ex3 - 2;
-
-    const int i4_lo = (iminF + 1 > 0) ? (iminF + 1) : 0;
-    const int j4_lo = (jminF + 1 > 0) ? (jminF + 1) : 0;
-    const int k4_lo = (kminF + 1 > 0) ? (kminF + 1) : 0;
-    const int i4_hi = ex1 - 3;
-    const int j4_hi = ex2 - 3;
-    const int k4_hi = ex3 - 3;
-
-    /*
-     * Strategy A:
-     * Avoid redundant work in overlap of 2nd/4th-order regions.
-     * Only compute 2nd-order on shell points that are NOT overwritten by
-     * the 4th-order pass.
-     */
-    const int has4 = (i4_lo <= i4_hi && j4_lo <= j4_hi && k4_lo <= k4_hi);
-
-    if (i2_lo <= i2_hi && j2_lo <= j2_hi && k2_lo <= k2_hi) {
-        for (int k0 = k2_lo; k0 <= k2_hi; ++k0) {
-            const int kF = k0 + 1;
-            for (int j0 = j2_lo; j0 <= j2_hi; ++j0) {
-                const int jF = j0 + 1;
-                for (int i0 = i2_lo; i0 <= i2_hi; ++i0) {
-                    if (has4 &&
-                        i0 >= i4_lo && i0 <= i4_hi &&
-                        j0 >= j4_lo && j0 <= j4_hi &&
-                        k0 >= k4_lo && k0 <= k4_hi) {
-                        continue;
-                    }
-                    const int iF = i0 + 1;
-                    const size_t p = idx_ex(i0, j0, k0, ex);
-
-                    fxx[p] = Sdxdx * (
-                        fh[idx_fh_F_ord2(iF - 1, jF,     kF,     ex)] -
-                        TWO * fh[idx_fh_F_ord2(iF,     jF,     kF,     ex)] +
-                        fh[idx_fh_F_ord2(iF + 1, jF,     kF,     ex)]
-                    );
-
-                    fyy[p] = Sdydy * (
-                        fh[idx_fh_F_ord2(iF,     jF - 1, kF,     ex)] -
-                        TWO * fh[idx_fh_F_ord2(iF,     jF,     kF,     ex)] +
-                        fh[idx_fh_F_ord2(iF,     jF + 1, kF,     ex)]
-                    );
-
-                    fzz[p] = Sdzdz * (
-                        fh[idx_fh_F_ord2(iF,     jF,     kF - 1, ex)] -
-                        TWO * fh[idx_fh_F_ord2(iF,     jF,     kF,     ex)] +
-                        fh[idx_fh_F_ord2(iF,     jF,     kF + 1, ex)]
-                    );
-
-                    fxy[p] = Sdxdy * (
-                        fh[idx_fh_F_ord2(iF - 1, jF - 1, kF, ex)] -
-                        fh[idx_fh_F_ord2(iF + 1, jF - 1, kF, ex)] -
-                        fh[idx_fh_F_ord2(iF - 1, jF + 1, kF, ex)] +
-                        fh[idx_fh_F_ord2(iF + 1, jF + 1, kF, ex)]
-                    );
-
-                    fxz[p] = Sdxdz * (
-                        fh[idx_fh_F_ord2(iF - 1, jF, kF - 1, ex)] -
-                        fh[idx_fh_F_ord2(iF + 1, jF, kF - 1, ex)] -
-                        fh[idx_fh_F_ord2(iF - 1, jF, kF + 1, ex)] +
-                        fh[idx_fh_F_ord2(iF + 1, jF, kF + 1, ex)]
-                    );
-
-                    fyz[p] = Sdydz * (
-                        fh[idx_fh_F_ord2(iF, jF - 1, kF - 1, ex)] -
-                        fh[idx_fh_F_ord2(iF, jF + 1, kF - 1, ex)] -
-                        fh[idx_fh_F_ord2(iF, jF - 1, kF + 1, ex)] +
-                        fh[idx_fh_F_ord2(iF, jF + 1, kF + 1, ex)]
-                    );
-                }
-            }
-        }
-    }
-
-    if (has4) {
-        for (int k0 = k4_lo; k0 <= k4_hi; ++k0) {
-            const int kF = k0 + 1;
-            for (int j0 = j4_lo; j0 <= j4_hi; ++j0) {
-                const int jF = j0 + 1;
-                for (int i0 = i4_lo; i0 <= i4_hi; ++i0) {
-                    const int iF = i0 + 1;
-                    const size_t p = idx_ex(i0, j0, k0, ex);
-
-                    fxx[p] = Fdxdx * (
-                        -fh[idx_fh_F_ord2(iF - 2, jF,     kF,     ex)] +
-                        F16 * fh[idx_fh_F_ord2(iF - 1, jF,     kF,     ex)] -
-                        F30 * fh[idx_fh_F_ord2(iF,     jF,     kF,     ex)] -
-                        fh[idx_fh_F_ord2(iF + 2, jF,     kF,     ex)] +
-                        F16 * fh[idx_fh_F_ord2(iF + 1, jF,     kF,     ex)]
-                    );
-
-                    fyy[p] = Fdydy * (
-                        -fh[idx_fh_F_ord2(iF,     jF - 2, kF,     ex)] +
-                        F16 * fh[idx_fh_F_ord2(iF,     jF - 1, kF,     ex)] -
-                        F30 * fh[idx_fh_F_ord2(iF,     jF,     kF,     ex)] -
-                        fh[idx_fh_F_ord2(iF,     jF + 2, kF,     ex)] +
-                        F16 * fh[idx_fh_F_ord2(iF,     jF + 1, kF,     ex)]
-                    );
-
-                    fzz[p] = Fdzdz * (
-                        -fh[idx_fh_F_ord2(iF,     jF,     kF - 2, ex)] +
-                        F16 * fh[idx_fh_F_ord2(iF,     jF,     kF - 1, ex)] -
-                        F30 * fh[idx_fh_F_ord2(iF,     jF,     kF,     ex)] -
-                        fh[idx_fh_F_ord2(iF,     jF,     kF + 2, ex)] +
-                        F16 * fh[idx_fh_F_ord2(iF,     jF,     kF + 1, ex)]
-                    );
-
-                    {
-                        const double t_jm2 =
-                            ( fh[idx_fh_F_ord2(iF - 2, jF - 2, kF, ex)]
-                             -F8*fh[idx_fh_F_ord2(iF - 1, jF - 2, kF, ex)]
-                             +F8*fh[idx_fh_F_ord2(iF + 1, jF - 2, kF, ex)]
-                             -    fh[idx_fh_F_ord2(iF + 2, jF - 2, kF, ex)] );
-
-                        const double t_jm1 =
-                            ( fh[idx_fh_F_ord2(iF - 2, jF - 1, kF, ex)]
-                             -F8*fh[idx_fh_F_ord2(iF - 1, jF - 1, kF, ex)]
-                             +F8*fh[idx_fh_F_ord2(iF + 1, jF - 1, kF, ex)]
-                             -    fh[idx_fh_F_ord2(iF + 2, jF - 1, kF, ex)] );
-
-                        const double t_jp1 =
-                            ( fh[idx_fh_F_ord2(iF - 2, jF + 1, kF, ex)]
-                             -F8*fh[idx_fh_F_ord2(iF - 1, jF + 1, kF, ex)]
-                             +F8*fh[idx_fh_F_ord2(iF + 1, jF + 1, kF, ex)]
-                             -    fh[idx_fh_F_ord2(iF + 2, jF + 1, kF, ex)] );
-
-                        const double t_jp2 =
-                            ( fh[idx_fh_F_ord2(iF - 2, jF + 2, kF, ex)]
-                             -F8*fh[idx_fh_F_ord2(iF - 1, jF + 2, kF, ex)]
-                             +F8*fh[idx_fh_F_ord2(iF + 1, jF + 2, kF, ex)]
-                             -    fh[idx_fh_F_ord2(iF + 2, jF + 2, kF, ex)] );
-
-                        fxy[p] = Fdxdy * ( t_jm2 - F8 * t_jm1 + F8 * t_jp1 - t_jp2 );
-                    }
-
-                    {
-                        const double t_km2 =
-                            ( fh[idx_fh_F_ord2(iF - 2, jF, kF - 2, ex)]
-                             -F8*fh[idx_fh_F_ord2(iF - 1, jF, kF - 2, ex)]
-                             +F8*fh[idx_fh_F_ord2(iF + 1, jF, kF - 2, ex)]
-                             -    fh[idx_fh_F_ord2(iF + 2, jF, kF - 2, ex)] );
-
-                        const double t_km1 =
-                            ( fh[idx_fh_F_ord2(iF - 2, jF, kF - 1, ex)]
-                             -F8*fh[idx_fh_F_ord2(iF - 1, jF, kF - 1, ex)]
-                             +F8*fh[idx_fh_F_ord2(iF + 1, jF, kF - 1, ex)]
-                             -    fh[idx_fh_F_ord2(iF + 2, jF, kF - 1, ex)] );
-
-                        const double t_kp1 =
-                            ( fh[idx_fh_F_ord2(iF - 2, jF, kF + 1, ex)]
-                             -F8*fh[idx_fh_F_ord2(iF - 1, jF, kF + 1, ex)]
-                             +F8*fh[idx_fh_F_ord2(iF + 1, jF, kF + 1, ex)]
-                             -    fh[idx_fh_F_ord2(iF + 2, jF, kF + 1, ex)] );
-
-                        const double t_kp2 =
-                            ( fh[idx_fh_F_ord2(iF - 2, jF, kF + 2, ex)]
-                             -F8*fh[idx_fh_F_ord2(iF - 1, jF, kF + 2, ex)]
-                             +F8*fh[idx_fh_F_ord2(iF + 1, jF, kF + 2, ex)]
-                             -    fh[idx_fh_F_ord2(iF + 2, jF, kF + 2, ex)] );
-
-                        fxz[p] = Fdxdz * ( t_km2 - F8 * t_km1 + F8 * t_kp1 - t_kp2 );
-                    }
-
-                    {
-                        const double t_km2 =
-                            ( fh[idx_fh_F_ord2(iF, jF - 2, kF - 2, ex)]
-                             -F8*fh[idx_fh_F_ord2(iF, jF - 1, kF - 2, ex)]
-                             +F8*fh[idx_fh_F_ord2(iF, jF + 1, kF - 2, ex)]
-                             -    fh[idx_fh_F_ord2(iF, jF + 2, kF - 2, ex)] );
-
-                        const double t_km1 =
-                            ( fh[idx_fh_F_ord2(iF, jF - 2, kF - 1, ex)]
-                             -F8*fh[idx_fh_F_ord2(iF, jF - 1, kF - 1, ex)]
-                             +F8*fh[idx_fh_F_ord2(iF, jF + 1, kF - 1, ex)]
-                             -    fh[idx_fh_F_ord2(iF, jF + 2, kF - 1, ex)] );
-
-                        const double t_kp1 =
-                            ( fh[idx_fh_F_ord2(iF, jF - 2, kF + 1, ex)]
-                             -F8*fh[idx_fh_F_ord2(iF, jF - 1, kF + 1, ex)]
-                             +F8*fh[idx_fh_F_ord2(iF, jF + 1, kF + 1, ex)]
-                             -    fh[idx_fh_F_ord2(iF, jF + 2, kF + 1, ex)] );
-
-                        const double t_kp2 =
-                            ( fh[idx_fh_F_ord2(iF, jF - 2, kF + 2, ex)]
-                             -F8*fh[idx_fh_F_ord2(iF, jF - 1, kF + 2, ex)]
-                             +F8*fh[idx_fh_F_ord2(iF, jF + 1, kF + 2, ex)]
-                             -    fh[idx_fh_F_ord2(iF, jF + 2, kF + 2, ex)] );
-
-                        fyz[p] = Fdydz * ( t_km2 - F8 * t_km1 + F8 * t_kp1 - t_kp2 );
-                    }
-                }
-            }
-        }
-    }
-
-    // free(fh);
-}
--- a/AMSS_NCKU_source/Derivative/fderivs_c.C
+++ b/AMSS_NCKU_source/Derivative/fderivs_c.C
@@ -1,167 +0,0 @@
-#include "tool.h"
-
-/*
- * C 版 fderivs
- *
- * Fortran:
- * subroutine fderivs(ex,f,fx,fy,fz,X,Y,Z,SYM1,SYM2,SYM3,symmetry,onoff)
- *
- * 约定：
- *   f, fx, fy, fz: ex1*ex2*ex3，按 idx_ex 布局
- *   X: ex1, Y: ex2, Z: ex3
- */
-void fderivs(const int ex[3],
-             const double *f,
-             double *fx, double *fy, double *fz,
-             const double *X, const double *Y, const double *Z,
-             double SYM1, double SYM2, double SYM3,
-             int Symmetry, int onoff)
-{
-    (void)onoff; // Fortran 里没用到
-
-    const double ZEO = 0.0, ONE = 1.0;
-    const double TWO = 2.0, EIT = 8.0;
-    const double F12 = 12.0;
-
-    const int NO_SYMM = 0, EQ_SYMM = 1; // OCTANT=2 在本子程序里不直接用
-
-    const int ex1 = ex[0], ex2 = ex[1], ex3 = ex[2];
-
-    // dX = X(2)-X(1) -> C: X[1]-X[0]
-    const double dX = X[1] - X[0];
-    const double dY = Y[1] - Y[0];
-    const double dZ = Z[1] - Z[0];
-
-    // Fortran 1-based bounds
-    const int imaxF = ex1;
-    const int jmaxF = ex2;
-    const int kmaxF = ex3;
-
-    int iminF = 1, jminF = 1, kminF = 1;
-    if (Symmetry > NO_SYMM && fabs(Z[0]) < dZ) kminF = -1;
-    if (Symmetry > EQ_SYMM && fabs(X[0]) < dX) iminF = -1;
-    if (Symmetry > EQ_SYMM && fabs(Y[0]) < dY) jminF = -1;
-
-    // SoA(1:3) = SYM1,SYM2,SYM3
-    const double SoA[3] = { SYM1, SYM2, SYM3 };
-
-    // fh: (ex1+2)*(ex2+2)*(ex3+2) because ord=2
-    const size_t nx = (size_t)ex1 + 2;
-    const size_t ny = (size_t)ex2 + 2;
-    const size_t nz = (size_t)ex3 + 2;
-    const size_t fh_size = nx * ny * nz;
-    static double *fh = NULL;
-    static size_t cap = 0;
-
-    if (fh_size > cap) {
-        free(fh);
-        fh = (double*)aligned_alloc(64, fh_size * sizeof(double));
-        cap = fh_size;
-    }
-    // double *fh = (double*)malloc(fh_size * sizeof(double));
-    if (!fh) return;
-
-    // call symmetry_bd(2,ex,f,fh,SoA)
-    symmetry_bd(2, ex, f, fh, SoA);
-
-    const double d12dx = ONE / F12 / dX;
-    const double d12dy = ONE / F12 / dY;
-    const double d12dz = ONE / F12 / dZ;
-
-    const double d2dx  = ONE / TWO / dX;
-    const double d2dy  = ONE / TWO / dY;
-    const double d2dz  = ONE / TWO / dZ;
-
-    // fx = fy = fz = 0
-    const size_t all = (size_t)ex1 * (size_t)ex2 * (size_t)ex3;
-    for (size_t p = 0; p < all; ++p) {
-        fx[p] = ZEO;
-        fy[p] = ZEO;
-        fz[p] = ZEO;
-    }
-
-    /*
-     * 两段式：
-     * 1) 先在二阶可用区域计算二阶模板
-     * 2) 再在高阶可用区域覆盖为四阶模板
-     *
-     * 与原 if/elseif 逻辑等价，但减少逐点分支判断。
-     */
-    const int i2_lo = (iminF > 0) ? iminF : 0;
-    const int j2_lo = (jminF > 0) ? jminF : 0;
-    const int k2_lo = (kminF > 0) ? kminF : 0;
-    const int i2_hi = ex1 - 2;
-    const int j2_hi = ex2 - 2;
-    const int k2_hi = ex3 - 2;
-
-    const int i4_lo = (iminF + 1 > 0) ? (iminF + 1) : 0;
-    const int j4_lo = (jminF + 1 > 0) ? (jminF + 1) : 0;
-    const int k4_lo = (kminF + 1 > 0) ? (kminF + 1) : 0;
-    const int i4_hi = ex1 - 3;
-    const int j4_hi = ex2 - 3;
-    const int k4_hi = ex3 - 3;
-
-    if (i2_lo <= i2_hi && j2_lo <= j2_hi && k2_lo <= k2_hi) {
-        for (int k0 = k2_lo; k0 <= k2_hi; ++k0) {
-            const int kF = k0 + 1;
-            for (int j0 = j2_lo; j0 <= j2_hi; ++j0) {
-                const int jF = j0 + 1;
-                for (int i0 = i2_lo; i0 <= i2_hi; ++i0) {
-                    const int iF = i0 + 1;
-                    const size_t p = idx_ex(i0, j0, k0, ex);
-
-                    fx[p] = d2dx * (
-                        -fh[idx_fh_F_ord2(iF - 1, jF,     kF,     ex)] +
-                         fh[idx_fh_F_ord2(iF + 1, jF,     kF,     ex)]
-                    );
-
-                    fy[p] = d2dy * (
-                        -fh[idx_fh_F_ord2(iF,     jF - 1, kF,     ex)] +
-                         fh[idx_fh_F_ord2(iF,     jF + 1, kF,     ex)]
-                    );
-
-                    fz[p] = d2dz * (
-                        -fh[idx_fh_F_ord2(iF,     jF,     kF - 1, ex)] +
-                         fh[idx_fh_F_ord2(iF,     jF,     kF + 1, ex)]
-                    );
-                }
-            }
-        }
-    }
-
-    if (i4_lo <= i4_hi && j4_lo <= j4_hi && k4_lo <= k4_hi) {
-        for (int k0 = k4_lo; k0 <= k4_hi; ++k0) {
-            const int kF = k0 + 1;
-            for (int j0 = j4_lo; j0 <= j4_hi; ++j0) {
-                const int jF = j0 + 1;
-                for (int i0 = i4_lo; i0 <= i4_hi; ++i0) {
-                    const int iF = i0 + 1;
-                    const size_t p = idx_ex(i0, j0, k0, ex);
-
-                    fx[p] = d12dx * (
-                        fh[idx_fh_F_ord2(iF - 2, jF,     kF,     ex)] -
-                        EIT * fh[idx_fh_F_ord2(iF - 1, jF,     kF,     ex)] +
-                        EIT * fh[idx_fh_F_ord2(iF + 1, jF,     kF,     ex)] -
-                        fh[idx_fh_F_ord2(iF + 2, jF,     kF,     ex)]
-                    );
-
-                    fy[p] = d12dy * (
-                        fh[idx_fh_F_ord2(iF,     jF - 2, kF,     ex)] -
-                        EIT * fh[idx_fh_F_ord2(iF,     jF - 1, kF,     ex)] +
-                        EIT * fh[idx_fh_F_ord2(iF,     jF + 1, kF,     ex)] -
-                        fh[idx_fh_F_ord2(iF,     jF + 2, kF,     ex)]
-                    );
-
-                    fz[p] = d12dz * (
-                        fh[idx_fh_F_ord2(iF,     jF,     kF - 2, ex)] -
-                        EIT * fh[idx_fh_F_ord2(iF,     jF,     kF - 1, ex)] +
-                        EIT * fh[idx_fh_F_ord2(iF,     jF,     kF + 1, ex)] -
-                        fh[idx_fh_F_ord2(iF,     jF,     kF + 2, ex)]
-                    );
-                }
-            }
-        }
-    }
-
-    // free(fh);
-}
--- a/AMSS_NCKU_source/AHF_Direct/FFT.f90
+++ b/AMSS_NCKU_source/AHF_Direct/FFT.f90
--- a/AMSS_NCKU_source/AHF_Direct/IntPnts.C
+++ b/AMSS_NCKU_source/AHF_Direct/IntPnts.C
--- a/AMSS_NCKU_source/AHF_Direct/IntPnts0.C
+++ b/AMSS_NCKU_source/AHF_Direct/IntPnts0.C
--- a/AMSS_NCKU_source/AHF_Direct/Jacobian.C
+++ b/AMSS_NCKU_source/AHF_Direct/Jacobian.C
--- a/AMSS_NCKU_source/AHF_Direct/Jacobian.h
+++ b/AMSS_NCKU_source/AHF_Direct/Jacobian.h
--- a/AMSS_NCKU_source/KO_dissipation/kodiss_c.C
+++ b/AMSS_NCKU_source/KO_dissipation/kodiss_c.C
@@ -1,117 +0,0 @@
-#include "tool.h"
-
-/*
- * C 版 kodis
- *
- * Fortran signature:
- * subroutine kodis(ex,X,Y,Z,f,f_rhs,SoA,Symmetry,eps)
- *
- * 约定：
- *   X: ex1, Y: ex2, Z: ex3
- *   f, f_rhs: ex1*ex2*ex3 按 idx_ex 布局
- *   SoA[3]
- *   eps: double
- */
-void kodis(const int ex[3],
-           const double *X, const double *Y, const double *Z,
-           const double *f, double *f_rhs,
-           const double SoA[3],
-           int Symmetry, double eps)
-{
-    const double ONE = 1.0, SIX = 6.0, FIT = 15.0, TWT = 20.0;
-    const double cof = 64.0;             // 2^6
-    const int NO_SYMM = 0, OCTANT = 2;
-
-    const int ex1 = ex[0], ex2 = ex[1], ex3 = ex[2];
-
-    // Fortran: dX = X(2)-X(1) -> C: X[1]-X[0]
-    const double dX = X[1] - X[0];
-    const double dY = Y[1] - Y[0];
-    const double dZ = Z[1] - Z[0];
-    (void)ONE; // ONE 在原 Fortran 里只是参数，这里不一定用得上
-
-    // Fortran: imax=ex(1) 等是 1-based 上界
-    const int imaxF = ex1;
-    const int jmaxF = ex2;
-    const int kmaxF = ex3;
-
-    // Fortran: imin=jmin=kmin=1，某些对称情况变 -2
-    int iminF = 1, jminF = 1, kminF = 1;
-
-    if (Symmetry > NO_SYMM && fabs(Z[0]) < dZ) kminF = -2;
-    if (Symmetry == OCTANT && fabs(X[0]) < dX) iminF = -2;
-    if (Symmetry == OCTANT && fabs(Y[0]) < dY) jminF = -2;
-
-    // 分配 fh：大小 (ex1+3)*(ex2+3)*(ex3+3)，对应 ord=3
-    const size_t nx = (size_t)ex1 + 3;
-    const size_t ny = (size_t)ex2 + 3;
-    const size_t nz = (size_t)ex3 + 3;
-    const size_t fh_size = nx * ny * nz;
-
-    double *fh = (double*)malloc(fh_size * sizeof(double));
-    if (!fh) return;
-
-    // Fortran: call symmetry_bd(3,ex,f,fh,SoA)
-    symmetry_bd(3, ex, f, fh, SoA);
-
-    /*
-     * Fortran loops:
-     * do k=1,ex3
-     * do j=1,ex2
-     * do i=1,ex1
-     *
-     * C: k0=0..ex3-1, j0=0..ex2-1, i0=0..ex1-1
-     * 并定义 Fortran index: iF=i0+1, ...
-     */
-    // 收紧循环范围：只遍历满足 iF±3/jF±3/kF±3 条件的内部点
-    // iF-3 >= iminF => iF >= iminF+3 => i0 >= iminF+2 (因为 iF=i0+1)
-    // iF+3 <= imaxF => iF <= imaxF-3 => i0 <= imaxF-4
-    const int i0_lo = (iminF + 2 > 0) ? iminF + 2 : 0;
-    const int j0_lo = (jminF + 2 > 0) ? jminF + 2 : 0;
-    const int k0_lo = (kminF + 2 > 0) ? kminF + 2 : 0;
-    const int i0_hi = imaxF - 4;  // inclusive
-    const int j0_hi = jmaxF - 4;
-    const int k0_hi = kmaxF - 4;
-
-    if (i0_lo > i0_hi || j0_lo > j0_hi || k0_lo > k0_hi) {
-        free(fh);
-        return;
-    }
-
-    for (int k0 = k0_lo; k0 <= k0_hi; ++k0) {
-        const int kF = k0 + 1;
-        for (int j0 = j0_lo; j0 <= j0_hi; ++j0) {
-            const int jF = j0 + 1;
-            for (int i0 = i0_lo; i0 <= i0_hi; ++i0) {
-                const int iF = i0 + 1;
-
-                    const size_t p = idx_ex(i0, j0, k0, ex);
-
-                    // 三个方向各一份同型的 7 点组合（实际上是对称的 6th-order dissipation/filter 核）
-                    const double Dx_term =
-                        ( (fh[idx_fh_F(iF - 3, jF, kF, ex)] + fh[idx_fh_F(iF + 3, jF, kF, ex)]) -
-                          SIX * (fh[idx_fh_F(iF - 2, jF, kF, ex)] + fh[idx_fh_F(iF + 2, jF, kF, ex)]) +
-                          FIT * (fh[idx_fh_F(iF - 1, jF, kF, ex)] + fh[idx_fh_F(iF + 1, jF, kF, ex)]) -
-                          TWT *  fh[idx_fh_F(iF    , jF, kF, ex)] ) / dX;
-
-                    const double Dy_term =
-                        ( (fh[idx_fh_F(iF, jF - 3, kF, ex)] + fh[idx_fh_F(iF, jF + 3, kF, ex)]) -
-                          SIX * (fh[idx_fh_F(iF, jF - 2, kF, ex)] + fh[idx_fh_F(iF, jF + 2, kF, ex)]) +
-                          FIT * (fh[idx_fh_F(iF, jF - 1, kF, ex)] + fh[idx_fh_F(iF, jF + 1, kF, ex)]) -
-                          TWT *  fh[idx_fh_F(iF, jF    , kF, ex)] ) / dY;
-
-                    const double Dz_term =
-                        ( (fh[idx_fh_F(iF, jF, kF - 3, ex)] + fh[idx_fh_F(iF, jF, kF + 3, ex)]) -
-                          SIX * (fh[idx_fh_F(iF, jF, kF - 2, ex)] + fh[idx_fh_F(iF, jF, kF + 2, ex)]) +
-                          FIT * (fh[idx_fh_F(iF, jF, kF - 1, ex)] + fh[idx_fh_F(iF, jF, kF + 1, ex)]) -
-                          TWT *  fh[idx_fh_F(iF, jF, kF    , ex)] ) / dZ;
-
-                    // Fortran:
-                    // f_rhs(i,j,k) = f_rhs(i,j,k) + eps/cof*(Dx_term + Dy_term + Dz_term)
-                    f_rhs[p] += (eps / cof) * (Dx_term + Dy_term + Dz_term);
-            }
-        }
-    }
-
-    free(fh);
-}
--- a/AMSS_NCKU_source/Patch/MPatch.C
+++ b/AMSS_NCKU_source/Patch/MPatch.C
--- a/AMSS_NCKU_source/Patch/MPatch.h
+++ b/AMSS_NCKU_source/Patch/MPatch.h
--- a/AMSS_NCKU_source/Variable/MyList.h
+++ b/AMSS_NCKU_source/Variable/MyList.h
--- a/AMSS_NCKU_source/AHF_Direct/Newton.C
+++ b/AMSS_NCKU_source/AHF_Direct/Newton.C
--- a/AMSS_NCKU_source/Null_Evolve/NullEvol.f90
+++ b/AMSS_NCKU_source/Null_Evolve/NullEvol.f90
--- a/AMSS_NCKU_source/Null_Evolve/NullEvol.h
+++ b/AMSS_NCKU_source/Null_Evolve/NullEvol.h
--- a/AMSS_NCKU_source/Null_Evolve/NullEvol2.f90
+++ b/AMSS_NCKU_source/Null_Evolve/NullEvol2.f90
--- a/AMSS_NCKU_source/Null_Evolve/NullNews.f90
+++ b/AMSS_NCKU_source/Null_Evolve/NullNews.f90
--- a/AMSS_NCKU_source/Null_Evolve/NullNews.h
+++ b/AMSS_NCKU_source/Null_Evolve/NullNews.h
--- a/AMSS_NCKU_source/Null_Evolve/NullNews2.f90
+++ b/AMSS_NCKU_source/Null_Evolve/NullNews2.f90
--- a/AMSS_NCKU_source/Null_Evolve/NullShellPatch.C
+++ b/AMSS_NCKU_source/Null_Evolve/NullShellPatch.C
--- a/AMSS_NCKU_source/Null_Evolve/NullShellPatch.h
+++ b/AMSS_NCKU_source/Null_Evolve/NullShellPatch.h
--- a/AMSS_NCKU_source/Null_Evolve/NullShellPatch2.C
+++ b/AMSS_NCKU_source/Null_Evolve/NullShellPatch2.C
--- a/AMSS_NCKU_source/Null_Evolve/NullShellPatch2.h
+++ b/AMSS_NCKU_source/Null_Evolve/NullShellPatch2.h
--- a/AMSS_NCKU_source/Null_Evolve/NullShellPatch2_Evo.C
+++ b/AMSS_NCKU_source/Null_Evolve/NullShellPatch2_Evo.C
--- a/AMSS_NCKU_source/Parallel/Parallel.C
+++ b/AMSS_NCKU_source/Parallel/Parallel.C
@@ -5,6 +5,42 @@
 #include "misc.h"
 #include "parameters.h"

+namespace
+{
+enum { MAX_DATA_PACKER_VARS = 64 };
+
+int expand_var_list_pack_info(MyList<var> *src_list, MyList<var> *dst_list,
+                              int *src_sgfn, int *dst_sgfn, double **src_soa)
+{
+  int count = 0;
+  MyList<var> *src_it = src_list;
+  MyList<var> *dst_it = dst_list;
+
+  while (src_it && dst_it)
+  {
+    if (count >= MAX_DATA_PACKER_VARS)
+    {
+      cout << "Parallel::data_packer: too many variables in communication list." << endl;
+      MPI_Abort(MPI_COMM_WORLD, 1);
+    }
+    src_sgfn[count] = src_it->data->sgfn;
+    dst_sgfn[count] = dst_it->data->sgfn;
+    src_soa[count] = src_it->data->SoA;
+    count++;
+    src_it = src_it->next;
+    dst_it = dst_it->next;
+  }
+
+  if (src_it || dst_it)
+  {
+    cout << "error in short data packer, var lists does not match." << endl;
+    MPI_Abort(MPI_COMM_WORLD, 1);
+  }
+
+  return count;
+}
+}
+
 int Parallel::partition1(int &nx, int split_size, int min_width, int cpusize, int shape) // special for 1 diemnsion
 {
  nx = Mymax(1, shape / min_width);
@@ -3730,21 +3766,10 @@ int Parallel::data_packer(double *data, MyList<Parallel::gridseg> *src, MyList<P
  if (!src || !dst)
    return size_out;

-  MyList<var> *varls, *varld;
-
-  varls = VarLists;
-  varld = VarListd;
-  while (varls && varld)
-  {
-    varls = varls->next;
-    varld = varld->next;
-  }
-
-  if (varls || varld)
-  {
-    cout << "error in short data packer, var lists does not match." << endl;
-    MPI_Abort(MPI_COMM_WORLD, 1);
-  }
+  int src_sgfn[MAX_DATA_PACKER_VARS];
+  int dst_sgfn[MAX_DATA_PACKER_VARS];
+  double *src_soa[MAX_DATA_PACKER_VARS];
+  const int var_count = expand_var_list_pack_info(VarLists, VarListd, src_sgfn, dst_sgfn, src_soa);

  int type; /* 1 copy, 2 restrict, 3 prolong */
  if (src->data->Bg->lev == dst->data->Bg->lev)
@@ -3756,43 +3781,57 @@ int Parallel::data_packer(double *data, MyList<Parallel::gridseg> *src, MyList<P

  while (src && dst)
  {
-    if ((dir == PACK && dst->data->Bg->rank == rank_in && src->data->Bg->rank == myrank) ||
-        (dir == UNPACK && src->data->Bg->rank == rank_in && dst->data->Bg->rank == myrank))
+    const bool rank_match =
+        (dir == PACK && dst->data->Bg->rank == rank_in && src->data->Bg->rank == myrank) ||
+        (dir == UNPACK && src->data->Bg->rank == rank_in && dst->data->Bg->rank == myrank);
+
+    if (rank_match)
    {
-      varls = VarLists;
-      varld = VarListd;
-      while (varls && varld)
+      const int segment_size = dst->data->shape[0] * dst->data->shape[1] * dst->data->shape[2];
+      int offset = size_out;
+
+      if (data)
      {
-        if (data)
+        if (dir == PACK)
        {
-          if (dir == PACK)
-            switch (type)
-            {
-              // attention must be paied to the difference between src's llb,uub and dst's llb,uub
+          switch (type)
+          {
            case 1:
-              f_copy(DIM, dst->data->llb, dst->data->uub, dst->data->shape, data + size_out,
-                     src->data->Bg->bbox, src->data->Bg->bbox + dim, src->data->Bg->shape, src->data->Bg->fgfs[varls->data->sgfn],
-                     dst->data->llb, dst->data->uub);
+              for (int iv = 0; iv < var_count; iv++, offset += segment_size)
+                f_copy(DIM, dst->data->llb, dst->data->uub, dst->data->shape, data + offset,
+                       src->data->Bg->bbox, src->data->Bg->bbox + dim, src->data->Bg->shape,
+                       src->data->Bg->fgfs[src_sgfn[iv]], dst->data->llb, dst->data->uub);
              break;
            case 2:
-              f_restrict3(DIM, dst->data->llb, dst->data->uub, dst->data->shape, data + size_out,
-                          src->data->Bg->bbox, src->data->Bg->bbox + dim, src->data->Bg->shape, src->data->Bg->fgfs[varls->data->sgfn],
-                          dst->data->llb, dst->data->uub, varls->data->SoA, Symmetry);
+              for (int iv = 0; iv < var_count; iv++, offset += segment_size)
+                f_restrict3(DIM, dst->data->llb, dst->data->uub, dst->data->shape, data + offset,
+                            src->data->Bg->bbox, src->data->Bg->bbox + dim, src->data->Bg->shape,
+                            src->data->Bg->fgfs[src_sgfn[iv]], dst->data->llb, dst->data->uub,
+                            src_soa[iv], Symmetry);
              break;
            case 3:
-              f_prolong3(DIM, src->data->Bg->bbox, src->data->Bg->bbox + dim, src->data->Bg->shape, src->data->Bg->fgfs[varls->data->sgfn],
-                         dst->data->llb, dst->data->uub, dst->data->shape, data + size_out,
-                         dst->data->llb, dst->data->uub, varls->data->SoA, Symmetry);
-            }
-          if (dir == UNPACK) // from target data to corresponding grid
-            f_copy(DIM, dst->data->Bg->bbox, dst->data->Bg->bbox + dim, dst->data->Bg->shape, dst->data->Bg->fgfs[varld->data->sgfn],
-                   dst->data->llb, dst->data->uub, dst->data->shape, data + size_out,
-                   dst->data->llb, dst->data->uub);
+              for (int iv = 0; iv < var_count; iv++, offset += segment_size)
+                f_prolong3(DIM, src->data->Bg->bbox, src->data->Bg->bbox + dim, src->data->Bg->shape,
+                           src->data->Bg->fgfs[src_sgfn[iv]], dst->data->llb, dst->data->uub,
+                           dst->data->shape, data + offset, dst->data->llb, dst->data->uub,
+                           src_soa[iv], Symmetry);
+              break;
+            default:
+              break;
+          }
+        }
+        else
+        {
+          for (int iv = 0; iv < var_count; iv++, offset += segment_size)
+            f_copy(DIM, dst->data->Bg->bbox, dst->data->Bg->bbox + dim, dst->data->Bg->shape,
+                   dst->data->Bg->fgfs[dst_sgfn[iv]], dst->data->llb, dst->data->uub,
+                   dst->data->shape, data + offset, dst->data->llb, dst->data->uub);
        }
-        size_out += dst->data->shape[0] * dst->data->shape[1] * dst->data->shape[2];
-        varls = varls->next;
-        varld = varld->next;
      }
+
+      size_out = offset + ((!data) ? segment_size * var_count : 0);
+      if (data)
+        size_out = offset;
    }
    dst = dst->next;
    src = src->next;
@@ -3819,21 +3858,10 @@ int Parallel::data_packermix(double *data, MyList<Parallel::gridseg> *src, MyLis
  if (!src || !dst)
    return size_out;

-  MyList<var> *varls, *varld;
-
-  varls = VarLists;
-  varld = VarListd;
-  while (varls && varld)
-  {
-    varls = varls->next;
-    varld = varld->next;
-  }
-
-  if (varls || varld)
-  {
-    cout << "error in short data packer, var lists does not match." << endl;
-    MPI_Abort(MPI_COMM_WORLD, 1);
-  }
+  int src_sgfn[MAX_DATA_PACKER_VARS];
+  int dst_sgfn[MAX_DATA_PACKER_VARS];
+  double *src_soa[MAX_DATA_PACKER_VARS];
+  const int var_count = expand_var_list_pack_info(VarLists, VarListd, src_sgfn, dst_sgfn, src_soa);

  int type; /* 1 copy, 2 restrict, 3 prolong */
  if (src->data->Bg->lev == dst->data->Bg->lev)
@@ -3851,30 +3879,41 @@ int Parallel::data_packermix(double *data, MyList<Parallel::gridseg> *src, MyLis

  while (src && dst)
  {
-    if ((dir == PACK && dst->data->Bg->rank == rank_in && src->data->Bg->rank == myrank) ||
-        (dir == UNPACK && src->data->Bg->rank == rank_in && dst->data->Bg->rank == myrank))
+    const bool rank_match =
+        (dir == PACK && dst->data->Bg->rank == rank_in && src->data->Bg->rank == myrank) ||
+        (dir == UNPACK && src->data->Bg->rank == rank_in && dst->data->Bg->rank == myrank);
+
+    if (rank_match)
    {
-      varls = VarLists;
-      varld = VarListd;
-      while (varls && varld)
+      const int segment_size =
+          (src->data->shape[0] + 2 * ghost_width) *
+          (src->data->shape[1] + 2 * ghost_width) *
+          (src->data->shape[2] + 2 * ghost_width);
+      int offset = size_out;
+
+      if (data)
      {
-        if (data)
+        if (dir == PACK)
        {
-          if (dir == PACK)
-            f_prolongcopy3(DIM, src->data->Bg->bbox, src->data->Bg->bbox + dim, src->data->Bg->shape, src->data->Bg->fgfs[varls->data->sgfn],
-                           dst->data->llb, dst->data->uub, src->data->shape, data + size_out,
-                           src->data->llb, src->data->uub, varls->data->SoA, Symmetry);
-          if (dir == UNPACK) // from target data to corresponding grid
-            f_prolongmix3(DIM, dst->data->Bg->bbox, dst->data->Bg->bbox + dim, dst->data->Bg->shape, dst->data->Bg->fgfs[varld->data->sgfn],
-                          src->data->llb, src->data->uub, src->data->shape, data + size_out,
-                          dst->data->llb, dst->data->uub, varls->data->SoA, Symmetry, dst->data->illb, dst->data->iuub);
+          for (int iv = 0; iv < var_count; iv++, offset += segment_size)
+            f_prolongcopy3(DIM, src->data->Bg->bbox, src->data->Bg->bbox + dim, src->data->Bg->shape,
+                           src->data->Bg->fgfs[src_sgfn[iv]], dst->data->llb, dst->data->uub,
+                           src->data->shape, data + offset, src->data->llb, src->data->uub,
+                           src_soa[iv], Symmetry);
+        }
+        else
+        {
+          for (int iv = 0; iv < var_count; iv++, offset += segment_size)
+            f_prolongmix3(DIM, dst->data->Bg->bbox, dst->data->Bg->bbox + dim, dst->data->Bg->shape,
+                          dst->data->Bg->fgfs[dst_sgfn[iv]], src->data->llb, src->data->uub,
+                          src->data->shape, data + offset, dst->data->llb, dst->data->uub,
+                          src_soa[iv], Symmetry, dst->data->illb, dst->data->iuub);
        }
-        // the symmetry problem should be dealt in prolongcopy3,
-        // so we always have ghost_width for both sides
-        size_out += (src->data->shape[0] + 2 * ghost_width) * (src->data->shape[1] + 2 * ghost_width) * (src->data->shape[2] + 2 * ghost_width);
-        varls = varls->next;
-        varld = varld->next;
      }
+
+      size_out = offset + ((!data) ? segment_size * var_count : 0);
+      if (data)
+        size_out = offset;
    }
    dst = dst->next;
    src = src->next;
--- a/AMSS_NCKU_source/Parallel/Parallel.h
+++ b/AMSS_NCKU_source/Parallel/Parallel.h
--- a/AMSS_NCKU_source/Parallel/Parallel_bam.C
+++ b/AMSS_NCKU_source/Parallel/Parallel_bam.C
--- a/AMSS_NCKU_source/Parallel/Parallel_bam.h
+++ b/AMSS_NCKU_source/Parallel/Parallel_bam.h
--- a/AMSS_NCKU_source/Scalar/Set_Rho_ADM.f90
+++ b/AMSS_NCKU_source/Scalar/Set_Rho_ADM.f90
--- a/AMSS_NCKU_source/Shell_Patch/ShellPatch.C
+++ b/AMSS_NCKU_source/Shell_Patch/ShellPatch.C
--- a/AMSS_NCKU_source/Shell_Patch/ShellPatch.h
+++ b/AMSS_NCKU_source/Shell_Patch/ShellPatch.h
@@ -102,6 +102,16 @@ public:
                 //-1: means no dumy dimension at all; 0: means rho; 1: means sigma
   };

+   // Thread-safe search result (no pointers to shared mutable state)
+   struct PointSearchResult
+   {
+      bool found;
+      Block *Bg;
+      double gx, gy, gz; // global Cartesian coordinates
+      double lx, ly, lz; // local coordinates within the found block
+      int ssst;          // source shell-patch type (-1 = Cartesian)
+   };
+
   int myrank;
   int shape[dim];   // for (rho, sigma, R), for rho and sigma means number of points for every pi/2
   double Rrange[2]; // for Rmin and Rmax
@@ -175,6 +185,12 @@ public:
                         MyList<Patch> *Pp, double CDH[dim], MyList<pointstru> *pss);
   bool prolongpointstru(MyList<pointstru> *&psul, bool ssyn, int tsst, MyList<ss_patch> *sPp, double DH[dim],
                         MyList<Patch> *Pp, double CDH[dim], double x, double y, double z, int Symmetry, int rank_in);
+   // Read-only point search — thread-safe (no shared mutable state modified)
+   PointSearchResult prolongpointstru_search(bool ssyn, int tsst, MyList<ss_patch> *sPp, double DH[dim],
+                                             MyList<Patch> *Pp, double CDH[dim], double x, double y, double z,
+                                             int Symmetry, int rank_in);
+   // Append a search result to a linked list — use inside omp critical section
+   void prolongpointstru_append(MyList<pointstru> *&psul, const PointSearchResult &sr, int tsst);
   void setupintintstuff(int cpusize, MyList<Patch> *CPatL, int Symmetry);
   void intertransfer(MyList<pointstru> **src, MyList<pointstru> **dst,
                      MyList<var> *VarList1 /* source */, MyList<var> *VarList2 /*target */,
--- a/AMSS_NCKU_source/Two_Puncture/TwoPunctureABE.C
+++ b/AMSS_NCKU_source/Two_Puncture/TwoPunctureABE.C
--- a/AMSS_NCKU_source/Two_Puncture/TwoPunctures.C
+++ b/AMSS_NCKU_source/Two_Puncture/TwoPunctures.C
--- a/AMSS_NCKU_source/Two_Puncture/TwoPunctures.h
+++ b/AMSS_NCKU_source/Two_Puncture/TwoPunctures.h
--- a/AMSS_NCKU_source/Z4C/Z4c_class.C
+++ b/AMSS_NCKU_source/Z4C/Z4c_class.C
--- a/AMSS_NCKU_source/Z4C/Z4c_class.h
+++ b/AMSS_NCKU_source/Z4C/Z4c_class.h
--- a/AMSS_NCKU_source/Z4C/Z4c_rhs.f90
+++ b/AMSS_NCKU_source/Z4C/Z4c_rhs.f90
@@ -94,29 +94,31 @@
               Hcon,Mxcon,Mycon,Mzcon,Gmxcon,Gmycon,Gmzcon,                    &            
               Symmetry,Lev,eps,co)

+  if (co == 0) then
 #if (ABV == 0)  
-  call ricci_gamma(ex, X, Y, Z,                                      &
-               chi,                                                  &
-               dxx    ,   gxy    ,   gxz    ,   dyy    ,   gyz    ,   dzz,&
-               Gamx   ,  Gamy    ,  Gamz    , &
-               Gamxxx,Gamxxy,Gamxxz,Gamxyy,Gamxyz,Gamxzz,&
-               Gamyxx,Gamyxy,Gamyxz,Gamyyy,Gamyyz,Gamyzz,&
-               Gamzxx,Gamzxy,Gamzxz,Gamzyy,Gamzyz,Gamzzz,&
-               Rxx,Rxy,Rxz,Ryy,Ryz,Rzz,&
-               Symmetry)
+    call ricci_gamma(ex, X, Y, Z,                                      &
+                 chi,                                                  &
+                 dxx    ,   gxy    ,   gxz    ,   dyy    ,   gyz    ,   dzz,&
+                 Gamx   ,  Gamy    ,  Gamz    , &
+                 Gamxxx,Gamxxy,Gamxxz,Gamxyy,Gamxyz,Gamxzz,&
+                 Gamyxx,Gamyxy,Gamyxz,Gamyyy,Gamyyz,Gamyzz,&
+                 Gamzxx,Gamzxy,Gamzxz,Gamzyy,Gamzyz,Gamzzz,&
+                 Rxx,Rxy,Rxz,Ryy,Ryz,Rzz,&
+                 Symmetry)
 #endif
-  call constraint_bssn(ex, X, Y, Z,&
-               chi,trK, &
-               dxx,gxy,gxz,dyy,gyz,dzz, &
-               Axx,Axy,Axz,Ayy,Ayz,Azz, &
-               Gamx,Gamy,Gamz,&
-               Lap,betax,betay,betaz,rho,Sx,Sy,Sz,&
-               Gamxxx, Gamxxy, Gamxxz,Gamxyy, Gamxyz, Gamxzz, &
-               Gamyxx, Gamyxy, Gamyxz,Gamyyy, Gamyyz, Gamyzz, &
-               Gamzxx, Gamzxy, Gamzxz,Gamzyy, Gamzyz, Gamzzz, &
-               Rxx,Rxy,Rxz,Ryy,Ryz,Rzz, &
-               Hcon,Mxcon,Mycon,Mzcon,Gmxcon,Gmycon,Gmzcon, &
-               Symmetry)
+    call constraint_bssn(ex, X, Y, Z,&
+                 chi,trK, &
+                 dxx,gxy,gxz,dyy,gyz,dzz, &
+                 Axx,Axy,Axz,Ayy,Ayz,Azz, &
+                 Gamx,Gamy,Gamz,&
+                 Lap,betax,betay,betaz,rho,Sx,Sy,Sz,&
+                 Gamxxx, Gamxxy, Gamxxz,Gamxyy, Gamxyz, Gamxzz, &
+                 Gamyxx, Gamyxy, Gamyxz,Gamyyy, Gamyyz, Gamyzz, &
+                 Gamzxx, Gamzxy, Gamzxz,Gamzyy, Gamzyz, Gamzzz, &
+                 Rxx,Rxy,Rxz,Ryy,Ryz,Rzz, &
+                 Hcon,Mxcon,Mycon,Mzcon,Gmxcon,Gmycon,Gmzcon, &
+                 Symmetry)
+  endif

  return

@@ -227,6 +229,7 @@
  call get_Z4cparameters(kappa1,kappa2,kappa3,FF,eta)

 !!! sanity check
+#ifdef DEBUG
  dX = sum(chi)+sum(trK)+sum(dxx)+sum(gxy)+sum(gxz)+sum(dyy)+sum(gyz)+sum(dzz) &
      +sum(Axx)+sum(Axy)+sum(Axz)+sum(Ayy)+sum(Ayz)+sum(Azz)                   &
      +sum(Gamx)+sum(Gamy)+sum(Gamz)                                           &
@@ -261,6 +264,7 @@
     gont = 1
     return
  endif
+#endif

  PI = dacos(-ONE)

@@ -1263,30 +1267,32 @@

  endif

+  if (co == 0) then
 #if (ABV == 0)  
-  call ricci_gamma(ex, X, Y, Z,                                      &
-               chi,                                                  &
-               dxx    ,   gxy    ,   gxz    ,   dyy    ,   gyz    ,   dzz,&
-               Gamx   ,  Gamy    ,  Gamz    , &
-               Gamxxx,Gamxxy,Gamxxz,Gamxyy,Gamxyz,Gamxzz,&
-               Gamyxx,Gamyxy,Gamyxz,Gamyyy,Gamyyz,Gamyzz,&
-               Gamzxx,Gamzxy,Gamzxz,Gamzyy,Gamzyz,Gamzzz,&
-               Rxx,Rxy,Rxz,Ryy,Ryz,Rzz,&
-               Symmetry)
+    call ricci_gamma(ex, X, Y, Z,                                      &
+                 chi,                                                  &
+                 dxx    ,   gxy    ,   gxz    ,   dyy    ,   gyz    ,   dzz,&
+                 Gamx   ,  Gamy    ,  Gamz    , &
+                 Gamxxx,Gamxxy,Gamxxz,Gamxyy,Gamxyz,Gamxzz,&
+                 Gamyxx,Gamyxy,Gamyxz,Gamyyy,Gamyyz,Gamyzz,&
+                 Gamzxx,Gamzxy,Gamzxz,Gamzyy,Gamzyz,Gamzzz,&
+                 Rxx,Rxy,Rxz,Ryy,Ryz,Rzz,&
+                 Symmetry)
 #endif

-  call constraint_bssn(ex, X, Y, Z,&
-               chi,trK, &
-               dxx,gxy,gxz,dyy,gyz,dzz, &
-               Axx,Axy,Axz,Ayy,Ayz,Azz, &
-               Gamx,Gamy,Gamz,&
-               Lap,betax,betay,betaz,rho,Sx,Sy,Sz,&
-               Gamxxx, Gamxxy, Gamxxz,Gamxyy, Gamxyz, Gamxzz, &
-               Gamyxx, Gamyxy, Gamyxz,Gamyyy, Gamyyz, Gamyzz, &
-               Gamzxx, Gamzxy, Gamzxz,Gamzyy, Gamzyz, Gamzzz, &
-               Rxx,Rxy,Rxz,Ryy,Ryz,Rzz, &
-               Hcon,Mxcon,Mycon,Mzcon,Gmxcon,Gmycon,Gmzcon, &
-               Symmetry)
+    call constraint_bssn(ex, X, Y, Z,&
+                 chi,trK, &
+                 dxx,gxy,gxz,dyy,gyz,dzz, &
+                 Axx,Axy,Axz,Ayy,Ayz,Azz, &
+                 Gamx,Gamy,Gamz,&
+                 Lap,betax,betay,betaz,rho,Sx,Sy,Sz,&
+                 Gamxxx, Gamxxy, Gamxxz,Gamxyy, Gamxyz, Gamxzz, &
+                 Gamyxx, Gamyxy, Gamyxz,Gamyyy, Gamyyz, Gamyzz, &
+                 Gamzxx, Gamzxy, Gamzxz,Gamzyy, Gamzyz, Gamzzz, &
+                 Rxx,Rxy,Rxz,Ryy,Ryz,Rzz, &
+                 Hcon,Mxcon,Mycon,Mzcon,Gmxcon,Gmycon,Gmzcon, &
+                 Symmetry)
+  endif

  gont = 0

--- a/AMSS_NCKU_source/Z4C/Z4c_rhs_ss.f90
+++ b/AMSS_NCKU_source/Z4C/Z4c_rhs_ss.f90
@@ -122,6 +122,7 @@
  call get_Z4cparameters(kappa1,kappa2,kappa3,FF,eta)

 !!! sanity check
+#ifdef DEBUG
  dX = sum(chi)+sum(trK)+sum(dxx)+sum(gxy)+sum(gxz)+sum(dyy)+sum(gyz)+sum(dzz) &
      +sum(Axx)+sum(Axy)+sum(Axz)+sum(Ayy)+sum(Ayz)+sum(Azz)                   &
      +sum(Gamx)+sum(Gamy)+sum(Gamz)                                           &
@@ -156,6 +157,7 @@
     gont = 1
     return
  endif
+#endif

  PI = dacos(-ONE)

@@ -1388,41 +1390,43 @@
  call kodis_sh(ex,crho,sigma,R,TZ,TZ_rhs,SSS,Symmetry,eps,sst)
  endif

+  if (co == 0) then
 #if (ABV == 1)  
-  call ricci_gamma_ss(ex,crho,sigma,R,X, Y, Z,                                 &
-               drhodx, drhody, drhodz,                                         &
-               dsigmadx,dsigmady,dsigmadz,                                     &
-               dRdx,dRdy,dRdz,                                                 &
-               drhodxx,drhodxy,drhodxz,drhodyy,drhodyz,drhodzz,                &
-               dsigmadxx,dsigmadxy,dsigmadxz,dsigmadyy,dsigmadyz,dsigmadzz,    &
-               dRdxx,dRdxy,dRdxz,dRdyy,dRdyz,dRdzz,                            &
-               chi,                                                  &
-               dxx    ,   gxy    ,   gxz    ,   dyy    ,   gyz    ,   dzz,&
-               Gamx   ,  Gamy    ,  Gamz    , &
-               Gamxxx,Gamxxy,Gamxxz,Gamxyy,Gamxyz,Gamxzz,&
-               Gamyxx,Gamyxy,Gamyxz,Gamyyy,Gamyyz,Gamyzz,&
-               Gamzxx,Gamzxy,Gamzxz,Gamzyy,Gamzyz,Gamzzz,&
-               Rxx,Rxy,Rxz,Ryy,Ryz,Rzz,&
-               Symmetry,Lev,sst)
-  call constraint_bssn_ss(ex,crho,sigma,R,X, Y, Z,  &
-               drhodx, drhody, drhodz,                                         &
-               dsigmadx,dsigmady,dsigmadz,                                     &
-               dRdx,dRdy,dRdz,                                                 &
-               drhodxx,drhodxy,drhodxz,drhodyy,drhodyz,drhodzz,                &
-               dsigmadxx,dsigmadxy,dsigmadxz,dsigmadyy,dsigmadyz,dsigmadzz,    &
-               dRdxx,dRdxy,dRdxz,dRdyy,dRdyz,dRdzz,                            &
-               chi,trK, &
-               dxx,gxy,gxz,dyy,gyz,dzz, &
-               Axx,Axy,Axz,Ayy,Ayz,Azz, &
-               Gamx,Gamy,Gamz,&
-               Lap,betax,betay,betaz,rho,Sx,Sy,Sz,&
-               Gamxxx, Gamxxy, Gamxxz,Gamxyy, Gamxyz, Gamxzz, &
-               Gamyxx, Gamyxy, Gamyxz,Gamyyy, Gamyyz, Gamyzz, &
-               Gamzxx, Gamzxy, Gamzxz,Gamzyy, Gamzyz, Gamzzz, &
-               Rxx,Rxy,Rxz,Ryy,Ryz,Rzz, &
-               Hcon,Mxcon,Mycon,Mzcon,Gmxcon,Gmycon,Gmzcon, &
-               Symmetry,Lev,sst)
+    call ricci_gamma_ss(ex,crho,sigma,R,X, Y, Z,                               &
+                 drhodx, drhody, drhodz,                                       &
+                 dsigmadx,dsigmady,dsigmadz,                                   &
+                 dRdx,dRdy,dRdz,                                               &
+                 drhodxx,drhodxy,drhodxz,drhodyy,drhodyz,drhodzz,              &
+                 dsigmadxx,dsigmadxy,dsigmadxz,dsigmadyy,dsigmadyz,dsigmadzz,  &
+                 dRdxx,dRdxy,dRdxz,dRdyy,dRdyz,dRdzz,                          &
+                 chi,                                                          &
+                 dxx    ,   gxy    ,   gxz    ,   dyy    ,   gyz    ,   dzz,&
+                 Gamx   ,  Gamy    ,  Gamz    , &
+                 Gamxxx,Gamxxy,Gamxxz,Gamxyy,Gamxyz,Gamxzz,&
+                 Gamyxx,Gamyxy,Gamyxz,Gamyyy,Gamyyz,Gamyzz,&
+                 Gamzxx,Gamzxy,Gamzxz,Gamzyy,Gamzyz,Gamzzz,&
+                 Rxx,Rxy,Rxz,Ryy,Ryz,Rzz,&
+                 Symmetry,Lev,sst)
 #endif
+    call constraint_bssn_ss(ex,crho,sigma,R,X, Y, Z,  &
+                 drhodx, drhody, drhodz,                                       &
+                 dsigmadx,dsigmady,dsigmadz,                                   &
+                 dRdx,dRdy,dRdz,                                               &
+                 drhodxx,drhodxy,drhodxz,drhodyy,drhodyz,drhodzz,              &
+                 dsigmadxx,dsigmadxy,dsigmadxz,dsigmadyy,dsigmadyz,dsigmadzz,  &
+                 dRdxx,dRdxy,dRdxz,dRdyy,dRdyz,dRdzz,                          &
+                 chi,trK, &
+                 dxx,gxy,gxz,dyy,gyz,dzz, &
+                 Axx,Axy,Axz,Ayy,Ayz,Azz, &
+                 Gamx,Gamy,Gamz,&
+                 Lap,betax,betay,betaz,rho,Sx,Sy,Sz,&
+                 Gamxxx, Gamxxy, Gamxxz,Gamxyy, Gamxyz, Gamxzz, &
+                 Gamyxx, Gamyxy, Gamyxz,Gamyyy, Gamyyz, Gamyzz, &
+                 Gamzxx, Gamzxy, Gamzxz,Gamzyy, Gamzyz, Gamzzz, &
+                 Rxx,Rxy,Rxz,Ryy,Ryz,Rzz, &
+                 Hcon,Mxcon,Mycon,Mzcon,Gmxcon,Gmycon,Gmzcon, &
+                 Symmetry,Lev,sst)
+  endif

  gont = 0

--- a/AMSS_NCKU_source/BSSN/adm_constraint.f90
+++ b/AMSS_NCKU_source/BSSN/adm_constraint.f90
--- a/AMSS_NCKU_source/Psi4/adm_ricci_gamma.f90
+++ b/AMSS_NCKU_source/Psi4/adm_ricci_gamma.f90
--- a/AMSS_NCKU_source/AHF_Direct/array.C
+++ b/AMSS_NCKU_source/AHF_Direct/array.C
--- a/AMSS_NCKU_source/AHF_Direct/array.h
+++ b/AMSS_NCKU_source/AHF_Direct/array.h
--- a/AMSS_NCKU_source/BSSN/bssn2adm.f90
+++ b/AMSS_NCKU_source/BSSN/bssn2adm.f90
--- a/AMSS_NCKU_source/BSSN/bssnEM_class.C
+++ b/AMSS_NCKU_source/BSSN/bssnEM_class.C
@@ -258,6 +258,8 @@ void bssnEM_class::Initialize()
    PhysTime = StartTime;
    Setup_Black_Hole_position();
  }
+
+  setup_transfer_caches();
 }

 //================================================================================================
--- a/AMSS_NCKU_source/BSSN/bssnEM_class.h
+++ b/AMSS_NCKU_source/BSSN/bssnEM_class.h
--- a/AMSS_NCKU_source/Scalar/bssnEScalar_class.C
+++ b/AMSS_NCKU_source/Scalar/bssnEScalar_class.C
@@ -26,6 +26,12 @@ using namespace std;
 #include "shellfunctions.h"
 #include "parameters.h"

+#if BSSN_USE_ESCALAR_C_KERNEL
+#define BSSN_ESCALAR_RHS f_compute_rhs_bssn_escalar_c
+#else
+#define BSSN_ESCALAR_RHS f_compute_rhs_bssn_escalar
+#endif
+
 #ifdef With_AHF
 #include "derivatives.h"
 #include "myglobal.h"
@@ -133,6 +139,9 @@ void bssnEScalar_class::Initialize()
    } 
   
  GH = new cgh(0, ngfs, Symmetry, pname, checkrun, ErrorMonitor);
+  ConstraintRefreshLevels = new int[GH->levels];
+  for (int il = 0; il < GH->levels; il++)
+    ConstraintRefreshLevels[il] = 0;
  if (checkrun)
    CheckPoint->readcheck_cgh(PhysTime, GH, myrank, nprocs, Symmetry);
  else
@@ -165,6 +174,8 @@ void bssnEScalar_class::Initialize()
    PhysTime = StartTime;
    Setup_Black_Hole_position();
  }
+
+  setup_transfer_caches();
 }

 //================================================================================================
@@ -230,6 +241,9 @@ void bssnEScalar_class::Read_Ansorg()
    }
    int BH_NM;
    double *Porg_here;
+    double *pmom_local;
+    double *spin_local;
+    double *mass_local;
    // read parameter from file
    {
      const int LEN = 256;
@@ -271,9 +285,9 @@ void bssnEScalar_class::Read_Ansorg()
    }

    Porg_here = new double[3 * BH_NM];
-    Pmom = new double[3 * BH_NM];
-    Spin = new double[3 * BH_NM];
-    Mass = new double[BH_NM];
+    pmom_local = new double[3 * BH_NM];
+    spin_local = new double[3 * BH_NM];
+    mass_local = new double[BH_NM];
    // read parameter from file
    {
      const int LEN = 256;
@@ -308,7 +322,7 @@ void bssnEScalar_class::Read_Ansorg()
        if (sgrp == "BSSN" && sind < BH_NM)
        {
          if (skey == "Mass")
-            Mass[sind] = atof(sval.c_str());
+            mass_local[sind] = atof(sval.c_str());
          else if (skey == "Porgx")
            Porg_here[sind * 3] = atof(sval.c_str());
          else if (skey == "Porgy")
@@ -316,17 +330,17 @@ void bssnEScalar_class::Read_Ansorg()
          else if (skey == "Porgz")
            Porg_here[sind * 3 + 2] = atof(sval.c_str());
          else if (skey == "Spinx")
-            Spin[sind * 3] = atof(sval.c_str());
+            spin_local[sind * 3] = atof(sval.c_str());
          else if (skey == "Spiny")
-            Spin[sind * 3 + 1] = atof(sval.c_str());
+            spin_local[sind * 3 + 1] = atof(sval.c_str());
          else if (skey == "Spinz")
-            Spin[sind * 3 + 2] = atof(sval.c_str());
+            spin_local[sind * 3 + 2] = atof(sval.c_str());
          else if (skey == "Pmomx")
-            Pmom[sind * 3] = atof(sval.c_str());
+            pmom_local[sind * 3] = atof(sval.c_str());
          else if (skey == "Pmomy")
-            Pmom[sind * 3 + 1] = atof(sval.c_str());
+            pmom_local[sind * 3 + 1] = atof(sval.c_str());
          else if (skey == "Pmomz")
-            Pmom[sind * 3 + 2] = atof(sval.c_str());
+            pmom_local[sind * 3 + 2] = atof(sval.c_str());
        }
      }
      inf.close();
@@ -362,7 +376,7 @@ void bssnEScalar_class::Read_Ansorg()
                                      cg->fgfs[Sfx0->sgfn], cg->fgfs[Sfy0->sgfn], cg->fgfs[Sfz0->sgfn],
                                      cg->fgfs[dtSfx0->sgfn], cg->fgfs[dtSfy0->sgfn], cg->fgfs[dtSfz0->sgfn],
                                      cg->fgfs[Sphi0->sgfn], cg->fgfs[Spi0->sgfn],
-                                      Mass, Porg_here, Pmom, Spin, BH_NM);
+                                      mass_local, Porg_here, pmom_local, spin_local, BH_NM);
          }
          if (BL == Pp->data->ble)
            break;
@@ -404,7 +418,7 @@ void bssnEScalar_class::Read_Ansorg()
                                       cg->fgfs[Sfx0->sgfn], cg->fgfs[Sfy0->sgfn], cg->fgfs[Sfz0->sgfn],
                                       cg->fgfs[dtSfx0->sgfn], cg->fgfs[dtSfy0->sgfn], cg->fgfs[dtSfz0->sgfn],
                                       cg->fgfs[Sphi0->sgfn], cg->fgfs[Spi0->sgfn],
-                                       Mass, Porg_here, Pmom, Spin, BH_NM);
+                                       mass_local, Porg_here, pmom_local, spin_local, BH_NM);
        }
        if (BL == Pp->data->ble)
          break;
@@ -415,6 +429,9 @@ void bssnEScalar_class::Read_Ansorg()
 #endif

    delete[] Porg_here;
+    delete[] pmom_local;
+    delete[] spin_local;
+    delete[] mass_local;
    // dump read_in initial data
    //   for(int lev=0;lev<GH->levels;lev++) Parallel::Dump_Data(GH->PatL[lev],StateList,0,PhysTime,dT);
  }
@@ -455,6 +472,9 @@ void bssnEScalar_class::Read_Pablo()
    }
    int BH_NM;
    double *Porg_here;
+    double *pmom_local;
+    double *spin_local;
+    double *mass_local;
    // read parameter from file
    {
      const int LEN = 256;
@@ -496,9 +516,9 @@ void bssnEScalar_class::Read_Pablo()
    }

    Porg_here = new double[3 * BH_NM];
-    Pmom = new double[3 * BH_NM];
-    Spin = new double[3 * BH_NM];
-    Mass = new double[BH_NM];
+    pmom_local = new double[3 * BH_NM];
+    spin_local = new double[3 * BH_NM];
+    mass_local = new double[BH_NM];
    // read parameter from file
    {
      const int LEN = 256;
@@ -533,7 +553,7 @@ void bssnEScalar_class::Read_Pablo()
        if (sgrp == "BSSN" && sind < BH_NM)
        {
          if (skey == "Mass")
-            Mass[sind] = atof(sval.c_str());
+            mass_local[sind] = atof(sval.c_str());
          else if (skey == "Porgx")
            Porg_here[sind * 3] = atof(sval.c_str());
          else if (skey == "Porgy")
@@ -541,17 +561,17 @@ void bssnEScalar_class::Read_Pablo()
          else if (skey == "Porgz")
            Porg_here[sind * 3 + 2] = atof(sval.c_str());
          else if (skey == "Spinx")
-            Spin[sind * 3] = atof(sval.c_str());
+            spin_local[sind * 3] = atof(sval.c_str());
          else if (skey == "Spiny")
-            Spin[sind * 3 + 1] = atof(sval.c_str());
+            spin_local[sind * 3 + 1] = atof(sval.c_str());
          else if (skey == "Spinz")
-            Spin[sind * 3 + 2] = atof(sval.c_str());
+            spin_local[sind * 3 + 2] = atof(sval.c_str());
          else if (skey == "Pmomx")
-            Pmom[sind * 3] = atof(sval.c_str());
+            pmom_local[sind * 3] = atof(sval.c_str());
          else if (skey == "Pmomy")
-            Pmom[sind * 3 + 1] = atof(sval.c_str());
+            pmom_local[sind * 3 + 1] = atof(sval.c_str());
          else if (skey == "Pmomz")
-            Pmom[sind * 3 + 2] = atof(sval.c_str());
+            pmom_local[sind * 3 + 2] = atof(sval.c_str());
        }
      }
      inf.close();
@@ -598,7 +618,7 @@ void bssnEScalar_class::Read_Pablo()
                                        cg->fgfs[Sfx0->sgfn], cg->fgfs[Sfy0->sgfn], cg->fgfs[Sfz0->sgfn],
                                        cg->fgfs[dtSfx0->sgfn], cg->fgfs[dtSfy0->sgfn], cg->fgfs[dtSfz0->sgfn],
                                        cg->fgfs[Sphi0->sgfn], cg->fgfs[Spi0->sgfn],
-                                        Mass, Porg_here, Pmom, Spin, BH_NM);
+                                        mass_local, Porg_here, pmom_local, spin_local, BH_NM);
            }
            if (BL == Pp->data->ble)
              break;
@@ -662,7 +682,7 @@ void bssnEScalar_class::Read_Pablo()
                                         cg->fgfs[Sfx0->sgfn], cg->fgfs[Sfy0->sgfn], cg->fgfs[Sfz0->sgfn],
                                         cg->fgfs[dtSfx0->sgfn], cg->fgfs[dtSfy0->sgfn], cg->fgfs[dtSfz0->sgfn],
                                         cg->fgfs[Sphi0->sgfn], cg->fgfs[Spi0->sgfn],
-                                         Mass, Porg_here, Pmom, Spin, BH_NM);
+                                         mass_local, Porg_here, pmom_local, spin_local, BH_NM);
          }
          if (BL == Pp->data->ble)
            break;
@@ -686,6 +706,9 @@ void bssnEScalar_class::Read_Pablo()
 #endif

    delete[] Porg_here;
+    delete[] pmom_local;
+    delete[] spin_local;
+    delete[] mass_local;
    if (flag && myrank == 0)
      MPI_Abort(MPI_COMM_WORLD, 1);
    // dump read_in initial data
@@ -739,7 +762,7 @@ void bssnEScalar_class::Step(int lev, int YN)
                     cg->fgfs[Ayy0->sgfn], cg->fgfs[Ayz0->sgfn], cg->fgfs[Azz0->sgfn]);
 #endif

-        if (f_compute_rhs_bssn_escalar(cg->shape, TRK4, cg->X[0], cg->X[1], cg->X[2],
+        if (BSSN_ESCALAR_RHS(cg->shape, TRK4, cg->X[0], cg->X[1], cg->X[2],
                                       cg->fgfs[phi0->sgfn], cg->fgfs[trK0->sgfn],
                                       cg->fgfs[gxx0->sgfn], cg->fgfs[gxy0->sgfn], cg->fgfs[gxz0->sgfn], 
                                       cg->fgfs[gyy0->sgfn], cg->fgfs[gyz0->sgfn], cg->fgfs[gzz0->sgfn],
@@ -993,7 +1016,8 @@ void bssnEScalar_class::Step(int lev, int YN)
  }
 #endif

-  Parallel::Sync(GH->PatL[lev], SynchList_pre, Symmetry);
+  Parallel::AsyncSyncState async_pre;
+  sync_predictor_start(lev, SynchList_pre, async_pre);

 #ifdef WithShell
  if (lev == 0)
@@ -1012,6 +1036,7 @@ void bssnEScalar_class::Step(int lev, int YN)
    }
  }
 #endif
+  sync_predictor_finish(lev, async_pre, SynchList_pre);

  // for black hole position
  if (BH_num > 0 && lev == GH->levels - 1)
@@ -1081,7 +1106,7 @@ void bssnEScalar_class::Step(int lev, int YN)
                         cg->fgfs[Ayy->sgfn], cg->fgfs[Ayz->sgfn], cg->fgfs[Azz->sgfn]);
 #endif

-          if (f_compute_rhs_bssn_escalar(cg->shape, TRK4, cg->X[0], cg->X[1], cg->X[2],
+          if (BSSN_ESCALAR_RHS(cg->shape, TRK4, cg->X[0], cg->X[1], cg->X[2],
                                         cg->fgfs[phi->sgfn], cg->fgfs[trK->sgfn],
                                         cg->fgfs[gxx->sgfn], cg->fgfs[gxy->sgfn], cg->fgfs[gxz->sgfn], 
                                         cg->fgfs[gyy->sgfn], cg->fgfs[gyz->sgfn], cg->fgfs[gzz->sgfn],
@@ -1349,7 +1374,8 @@ void bssnEScalar_class::Step(int lev, int YN)
    }
 #endif

-    Parallel::Sync(GH->PatL[lev], SynchList_cor, Symmetry);
+    Parallel::AsyncSyncState async_cor;
+    sync_corrector_start(lev, SynchList_cor, async_cor);

 #ifdef WithShell
    if (lev == 0)
@@ -1368,6 +1394,7 @@ void bssnEScalar_class::Step(int lev, int YN)
      }
    }
 #endif
+    sync_corrector_finish(lev, async_cor, SynchList_cor);
    // for black hole position
    if (BH_num > 0 && lev == GH->levels - 1)
    {
@@ -1835,8 +1862,11 @@ void bssnEScalar_class::AnalysisStuff_EScalar(int lev, double dT_lev)

 //================================================================================================

-void bssnEScalar_class::Interp_Constraint()
+void bssnEScalar_class::Interp_Constraint(bool infg)
 {
+  if (!infg)
+    return;
+
  // we do not support a_lev != 0 yet.
  if (a_lev > 0)
    return;
@@ -1858,7 +1888,7 @@ void bssnEScalar_class::Interp_Constraint()
          if (myrank == cg->rank)
          {
            if (lev > 0)
-              f_compute_rhs_bssn_escalar(cg->shape, TRK4, cg->X[0], cg->X[1], cg->X[2],
+              BSSN_ESCALAR_RHS(cg->shape, TRK4, cg->X[0], cg->X[1], cg->X[2],
                                         cg->fgfs[phi0->sgfn], cg->fgfs[trK0->sgfn],
                                         cg->fgfs[gxx0->sgfn], cg->fgfs[gxy0->sgfn], cg->fgfs[gxz0->sgfn], 
                                         cg->fgfs[gyy0->sgfn], cg->fgfs[gyz0->sgfn], cg->fgfs[gzz0->sgfn],
@@ -2078,7 +2108,7 @@ void bssnEScalar_class::Constraint_Out()
            if (myrank == cg->rank)
            {
              if (lev > 0)
-                f_compute_rhs_bssn_escalar(cg->shape, TRK4, cg->X[0], cg->X[1], cg->X[2],
+                BSSN_ESCALAR_RHS(cg->shape, TRK4, cg->X[0], cg->X[1], cg->X[2],
                                           cg->fgfs[phi0->sgfn], cg->fgfs[trK0->sgfn],
                                           cg->fgfs[gxx0->sgfn], cg->fgfs[gxy0->sgfn], cg->fgfs[gxz0->sgfn], 
                                           cg->fgfs[gyy0->sgfn], cg->fgfs[gyz0->sgfn], cg->fgfs[gzz0->sgfn],
--- a/AMSS_NCKU_source/Scalar/bssnEScalar_class.h
+++ b/AMSS_NCKU_source/Scalar/bssnEScalar_class.h
@@ -51,7 +51,7 @@ public:
     void Compute_Psi4(int lev);
     void Step(int lev, int YN);
     void AnalysisStuff_EScalar(int lev, double dT_lev);
-     void Interp_Constraint();
+     void Interp_Constraint(bool infg);
     void Constraint_Out(); 

 protected:
--- a/AMSS_NCKU_source/Scalar/bssnEScalar_rhs.f90
+++ b/AMSS_NCKU_source/Scalar/bssnEScalar_rhs.f90
--- a/AMSS_NCKU_source/BSSN/bssn_class.C
+++ b/AMSS_NCKU_source/BSSN/bssn_class.C
@@ -299,6 +299,28 @@ bssn_class::bssn_class(double Couranti, double StartTimei, double TotalTimei,
  MPI_Comm_size(MPI_COMM_WORLD, &nprocs);
  MPI_Comm_rank(MPI_COMM_WORLD, &myrank);

+  // Derived classes override Initialize(), so ownership-sensitive members must
+  // be in a known state before any specialized setup path runs.
+  GH = 0;
+  SH = 0;
+  PhysTime = 0.0;
+  BH_num = 0;
+  BH_num_input = 0;
+  Porg0 = 0;
+  Porgbr = 0;
+  Porg = 0;
+  Porg1 = 0;
+  Porg_rhs = 0;
+  Mass = 0;
+  Pmom = 0;
+  Spin = 0;
+  sync_cache_pre = 0;
+  sync_cache_cor = 0;
+  sync_cache_rp_coarse = 0;
+  sync_cache_rp_fine = 0;
+  sync_cache_restrict = 0;
+  sync_cache_outbd = 0;
+
  // setup Monitors
  {
    stringstream a_stream;
@@ -986,13 +1008,7 @@ void bssn_class::Initialize()
    Setup_Black_Hole_position();
  }

-  // Initialize sync caches (per-level, for predictor and corrector)
-  sync_cache_pre = new Parallel::SyncCache[GH->levels];
-  sync_cache_cor = new Parallel::SyncCache[GH->levels];
-  sync_cache_rp_coarse = new Parallel::SyncCache[GH->levels];
-  sync_cache_rp_fine = new Parallel::SyncCache[GH->levels];
-  sync_cache_restrict = new Parallel::SyncCache[GH->levels];
-  sync_cache_outbd = new Parallel::SyncCache[GH->levels];
+  setup_transfer_caches();
 }

 //================================================================================================
@@ -1247,30 +1263,7 @@ bssn_class::~bssn_class()
 #endif

  // Destroy sync caches before GH
-  if (sync_cache_pre)
-  {
-    for (int i = 0; i < GH->levels; i++)
-      sync_cache_pre[i].destroy();
-    delete[] sync_cache_pre;
-  }
-  if (sync_cache_cor)
-  {
-    for (int i = 0; i < GH->levels; i++)
-      sync_cache_cor[i].destroy();
-    delete[] sync_cache_cor;
-  }
-  if (sync_cache_rp_coarse)
-  {
-    for (int i = 0; i < GH->levels; i++)
-      sync_cache_rp_coarse[i].destroy();
-    delete[] sync_cache_rp_coarse;
-  }
-  if (sync_cache_rp_fine)
-  {
-    for (int i = 0; i < GH->levels; i++)
-      sync_cache_rp_fine[i].destroy();
-    delete[] sync_cache_rp_fine;
-  }
+  destroy_transfer_caches();

  delete GH;
 #ifdef WithShell
@@ -2489,7 +2482,7 @@ void bssn_class::Evolve(int Steps)
    GH->Regrid(Symmetry, BH_num, Porgbr, Porg0,
               SynchList_cor, OldStateList, StateList, SynchList_pre,
               fgt(PhysTime - dT_mon, StartTime, dT_mon / 2), ErrorMonitor);
-    for (int il = 0; il < GH->levels; il++) { sync_cache_pre[il].invalidate(); sync_cache_cor[il].invalidate(); sync_cache_rp_coarse[il].invalidate(); sync_cache_rp_fine[il].invalidate(); sync_cache_restrict[il].invalidate(); sync_cache_outbd[il].invalidate(); }
+    invalidate_transfer_caches();
    STEP_TIMER_ADD(TB_REGRID, timer_regrid);
 #endif

@@ -2730,7 +2723,7 @@ void bssn_class::RecursiveStep(int lev)
  {
  if (ConstraintRefreshLevels)
    ConstraintRefreshLevels[lev] = 1;
-  for (int il = 0; il < GH->levels; il++) { sync_cache_pre[il].invalidate(); sync_cache_cor[il].invalidate(); sync_cache_rp_coarse[il].invalidate(); sync_cache_rp_fine[il].invalidate(); sync_cache_restrict[il].invalidate(); sync_cache_outbd[il].invalidate(); }
+  invalidate_transfer_caches();
  }
  STEP_TIMER_ADD(TB_REGRID, timer_regrid_onelevel);
 #endif
@@ -2911,7 +2904,7 @@ void bssn_class::ParallelStep()
  if (GH->Regrid_Onelevel(GH->mylev, Symmetry, BH_num, Porgbr, Porg0,
                      SynchList_cor, OldStateList, StateList, SynchList_pre,
                      fgt(PhysTime - dT_lev, StartTime, dT_lev / 2), ErrorMonitor))
-  for (int il = 0; il < GH->levels; il++) { sync_cache_pre[il].invalidate(); sync_cache_cor[il].invalidate(); sync_cache_rp_coarse[il].invalidate(); sync_cache_rp_fine[il].invalidate(); sync_cache_restrict[il].invalidate(); sync_cache_outbd[il].invalidate(); }
+    invalidate_transfer_caches();
 #endif
 }

@@ -3075,10 +3068,10 @@ void bssn_class::ParallelStep()
      if (lev + 1 >= GH->movls)
      {
        //	       GH->Regrid_Onelevel_aux(lev,Symmetry,BH_num,Porgbr,Porg0,
-        if (GH->Regrid_Onelevel(lev + 1, Symmetry, BH_num, Porgbr, Porg0,
-                            SynchList_cor, OldStateList, StateList, SynchList_pre,
-                            fgt(PhysTime - dT_levp1, StartTime, dT_levp1 / 2), ErrorMonitor))
-        for (int il = 0; il < GH->levels; il++) { sync_cache_pre[il].invalidate(); sync_cache_cor[il].invalidate(); sync_cache_rp_coarse[il].invalidate(); sync_cache_rp_fine[il].invalidate(); sync_cache_restrict[il].invalidate(); sync_cache_outbd[il].invalidate(); }
+          if (GH->Regrid_Onelevel(lev + 1, Symmetry, BH_num, Porgbr, Porg0,
+                              SynchList_cor, OldStateList, StateList, SynchList_pre,
+                              fgt(PhysTime - dT_levp1, StartTime, dT_levp1 / 2), ErrorMonitor))
+            invalidate_transfer_caches();

        //               a_stream.clear();
        //               a_stream.str("");
@@ -3093,7 +3086,7 @@ void bssn_class::ParallelStep()
      if (GH->Regrid_Onelevel(lev, Symmetry, BH_num, Porgbr, Porg0,
                          SynchList_cor, OldStateList, StateList, SynchList_pre,
                          fgt(PhysTime - dT_lev, StartTime, dT_lev / 2), ErrorMonitor))
-      for (int il = 0; il < GH->levels; il++) { sync_cache_pre[il].invalidate(); sync_cache_cor[il].invalidate(); sync_cache_rp_coarse[il].invalidate(); sync_cache_rp_fine[il].invalidate(); sync_cache_restrict[il].invalidate(); sync_cache_outbd[il].invalidate(); }
+        invalidate_transfer_caches();

      //               a_stream.clear();
      //               a_stream.str("");
@@ -3112,7 +3105,7 @@ void bssn_class::ParallelStep()
          if (GH->Regrid_Onelevel(lev - 1, Symmetry, BH_num, Porgbr, Porg0,
                              SynchList_cor, OldStateList, StateList, SynchList_pre,
                              fgt(PhysTime - dT_lev, StartTime, dT_levm1 / 2), ErrorMonitor))
-          for (int il = 0; il < GH->levels; il++) { sync_cache_pre[il].invalidate(); sync_cache_cor[il].invalidate(); sync_cache_rp_coarse[il].invalidate(); sync_cache_rp_fine[il].invalidate(); sync_cache_restrict[il].invalidate(); sync_cache_outbd[il].invalidate(); }
+            invalidate_transfer_caches();

          //               a_stream.clear();
          //               a_stream.str("");
@@ -3128,7 +3121,7 @@ void bssn_class::ParallelStep()
          if (GH->Regrid_Onelevel(lev - 1, Symmetry, BH_num, Porgbr, Porg0,
                              SynchList_cor, OldStateList, StateList, SynchList_pre,
                              fgt(PhysTime - dT_lev, StartTime, dT_levm1 / 2), ErrorMonitor))
-          for (int il = 0; il < GH->levels; il++) { sync_cache_pre[il].invalidate(); sync_cache_cor[il].invalidate(); sync_cache_rp_coarse[il].invalidate(); sync_cache_rp_fine[il].invalidate(); sync_cache_restrict[il].invalidate(); sync_cache_outbd[il].invalidate(); }
+            invalidate_transfer_caches();

          //               a_stream.clear();
          //               a_stream.str("");
@@ -3659,7 +3652,7 @@ void bssn_class::Step(int lev, int YN)

  STEP_TIMER_DECL(timer_predictor_sync);
  Parallel::AsyncSyncState async_pre;
-  Parallel::Sync_start(GH->PatL[lev], SynchList_pre, Symmetry, sync_cache_pre[lev], async_pre);
+  sync_predictor_start(lev, SynchList_pre, async_pre);

 #ifdef WithShell
  if (lev == 0)
@@ -3678,7 +3671,7 @@ void bssn_class::Step(int lev, int YN)
    }
  }
 #endif
-  Parallel::Sync_finish(sync_cache_pre[lev], async_pre, SynchList_pre, Symmetry);
+  sync_predictor_finish(lev, async_pre, SynchList_pre);

 #ifdef WithShell
  // Complete non-blocking error reduction and check
@@ -4024,7 +4017,7 @@ void bssn_class::Step(int lev, int YN)

    STEP_TIMER_DECL(timer_corrector_sync);
    Parallel::AsyncSyncState async_cor;
-    Parallel::Sync_start(GH->PatL[lev], SynchList_cor, Symmetry, sync_cache_cor[lev], async_cor);
+    sync_corrector_start(lev, SynchList_cor, async_cor);

 #ifdef WithShell
    if (lev == 0)
@@ -4043,7 +4036,7 @@ void bssn_class::Step(int lev, int YN)
      }
    }
 #endif
-    Parallel::Sync_finish(sync_cache_cor[lev], async_cor, SynchList_cor, Symmetry);
+    sync_corrector_finish(lev, async_cor, SynchList_cor);

 #ifdef WithShell
    // Complete non-blocking error reduction and check
@@ -4532,7 +4525,7 @@ void bssn_class::Step(int lev, int YN)
 #endif

  Parallel::AsyncSyncState async_pre;
-  Parallel::Sync_start(GH->PatL[lev], SynchList_pre, Symmetry, sync_cache_pre[lev], async_pre);
+  sync_predictor_start(lev, SynchList_pre, async_pre);

 #ifdef WithShell
  if (lev == 0)
@@ -4551,7 +4544,7 @@ void bssn_class::Step(int lev, int YN)
    }
  }
 #endif
-  Parallel::Sync_finish(sync_cache_pre[lev], async_pre, SynchList_pre, Symmetry);
+  sync_predictor_finish(lev, async_pre, SynchList_pre);

 #ifdef WithShell
  // Complete non-blocking error reduction and check
@@ -4880,7 +4873,7 @@ void bssn_class::Step(int lev, int YN)
 #endif

    Parallel::AsyncSyncState async_cor;
-    Parallel::Sync_start(GH->PatL[lev], SynchList_cor, Symmetry, sync_cache_cor[lev], async_cor);
+    sync_corrector_start(lev, SynchList_cor, async_cor);

 #ifdef WithShell
    if (lev == 0)
@@ -4899,7 +4892,7 @@ void bssn_class::Step(int lev, int YN)
      }
    }
 #endif
-    Parallel::Sync_finish(sync_cache_cor[lev], async_cor, SynchList_cor, Symmetry);
+    sync_corrector_finish(lev, async_cor, SynchList_cor);

 #ifdef WithShell
    // Complete non-blocking error reduction and check
@@ -5291,7 +5284,7 @@ void bssn_class::Step(int lev, int YN)

  //   misc::tillherecheck(GH->Commlev[lev],GH->start_rank[lev],"before Predictor sync");

-  Parallel::Sync_cached(GH->PatL[lev], SynchList_pre, Symmetry, sync_cache_pre[lev]);
+  sync_evolution(lev, SynchList_pre, sync_cache_pre);

  // Complete non-blocking error reduction and check
  MPI_Wait(&err_req, MPI_STATUS_IGNORE);
@@ -5492,7 +5485,7 @@ void bssn_class::Step(int lev, int YN)

    //    misc::tillherecheck(GH->Commlev[lev],GH->start_rank[lev],"before Corrector sync");

-    Parallel::Sync_cached(GH->PatL[lev], SynchList_cor, Symmetry, sync_cache_cor[lev]);
+    sync_evolution(lev, SynchList_cor, sync_cache_cor);

    //    misc::tillherecheck(GH->Commlev[lev],GH->start_rank[lev],"after Corrector sync");

@@ -6081,6 +6074,92 @@ void bssn_class::RestrictProlong(int lev, int YN, bool BB,
 //
 // SynchList_cor  old -----------
 {
+#if (ABEtype == 1 || ABEtype == 2)
+#if (PSTR == 1 || PSTR == 2)
+//  stringstream a_stream;
+//  a_stream.setf(ios::left);
+#endif
+
+  if (lev > 0)
+  {
+    MyList<Patch> *Pp, *Ppc;
+    if (lev > trfls && YN == 0)
+    {
+      Pp = GH->PatL[lev - 1];
+      while (Pp)
+      {
+        if (BB)
+          Parallel::prepare_inter_time_level(Pp->data, SL, OL, corL,
+                                             SynchList_pre, 0);
+        else
+          Parallel::prepare_inter_time_level(Pp->data, SL, OL,
+                                             SynchList_pre, 0);
+        Pp = Pp->next;
+      }
+
+#if (RPB == 0)
+      Parallel::Restrict(GH->PatL[lev - 1], GH->PatL[lev], SL, SynchList_pre, Symmetry);
+#elif (RPB == 1)
+      Parallel::Restrict_bam(GH->PatL[lev - 1], GH->PatL[lev], SL, SynchList_pre, GH->rsul[lev], Symmetry);
+#endif
+
+      Parallel::Sync(GH->PatL[lev - 1], SynchList_pre, Symmetry);
+
+#if (RPB == 0)
+      Ppc = GH->PatL[lev - 1];
+      while (Ppc)
+      {
+        Pp = GH->PatL[lev];
+        while (Pp)
+        {
+#if (MIXOUTB == 0)
+          Parallel::OutBdLow2Hi(Ppc->data, Pp->data, SynchList_pre, SL, Symmetry);
+#elif (MIXOUTB == 1)
+          Parallel::OutBdLow2Himix(Ppc->data, Pp->data, SynchList_pre, SL, Symmetry);
+#endif
+          Pp = Pp->next;
+        }
+        Ppc = Ppc->next;
+      }
+#elif (RPB == 1)
+      Parallel::OutBdLow2Hi_bam(GH->PatL[lev - 1], GH->PatL[lev], SynchList_pre, SL, GH->bdsul[lev], Symmetry);
+#endif
+    }
+    else
+    {
+#if (RPB == 0)
+      Parallel::Restrict(GH->PatL[lev - 1], GH->PatL[lev], SL, SL, Symmetry);
+#elif (RPB == 1)
+      Parallel::Restrict_bam(GH->PatL[lev - 1], GH->PatL[lev], SL, SL, GH->rsul[lev], Symmetry);
+#endif
+
+      Parallel::Sync(GH->PatL[lev - 1], SL, Symmetry);
+
+#if (RPB == 0)
+      Ppc = GH->PatL[lev - 1];
+      while (Ppc)
+      {
+        Pp = GH->PatL[lev];
+        while (Pp)
+        {
+#if (MIXOUTB == 0)
+          Parallel::OutBdLow2Hi(Ppc->data, Pp->data, SL, SL, Symmetry);
+#elif (MIXOUTB == 1)
+          Parallel::OutBdLow2Himix(Ppc->data, Pp->data, SL, SL, Symmetry);
+#endif
+          Pp = Pp->next;
+        }
+        Ppc = Ppc->next;
+      }
+#elif (RPB == 1)
+      Parallel::OutBdLow2Hi_bam(GH->PatL[lev - 1], GH->PatL[lev], SL, SL, GH->bdsul[lev], Symmetry);
+#endif
+    }
+
+    Parallel::Sync(GH->PatL[lev], SL, Symmetry);
+  }
+  return;
+#endif
  STEP_TIMER_DECL(timer_restrict_prolong);
 #if (PSTR == 1 || PSTR == 2)
 //  stringstream a_stream;
@@ -6123,7 +6202,7 @@ void bssn_class::RestrictProlong(int lev, int YN, bool BB,
 #endif

 #if (RPB == 0)
-      Parallel::Restrict_cached(GH->PatL[lev - 1], GH->PatL[lev], SL, SynchList_pre, Symmetry, sync_cache_restrict[lev]);
+      restrict_evolution(lev, SL, SynchList_pre);
 #elif (RPB == 1)
      //       Parallel::Restrict_bam(GH->PatL[lev-1],GH->PatL[lev],SL,SynchList_pre,Symmetry);
      Parallel::Restrict_bam(GH->PatL[lev - 1], GH->PatL[lev], SL, SynchList_pre, GH->rsul[lev], Symmetry);
@@ -6136,7 +6215,7 @@ void bssn_class::RestrictProlong(int lev, int YN, bool BB,
 //       misc::tillherecheck(GH->Commlev[GH->mylev],GH->start_rank[GH->mylev],a_stream.str());
 #endif

-      Parallel::Sync_cached(GH->PatL[lev - 1], SynchList_pre, Symmetry, sync_cache_rp_coarse[lev]);
+      sync_evolution(lev - 1, SynchList_pre, sync_cache_rp_coarse);

 #if (PSTR == 1 || PSTR == 2)
 //       a_stream.clear();
@@ -6147,7 +6226,7 @@ void bssn_class::RestrictProlong(int lev, int YN, bool BB,

 #if (RPB == 0)
 #if (MIXOUTB == 0)
-      Parallel::OutBdLow2Hi_cached(GH->PatL[lev - 1], GH->PatL[lev], SynchList_pre, SL, Symmetry, sync_cache_outbd[lev]);
+      outbdlow2hi_evolution(lev, SynchList_pre, SL);
 #elif (MIXOUTB == 1)
      Parallel::OutBdLow2Himix(GH->PatL[lev - 1], GH->PatL[lev], SynchList_pre, SL, Symmetry);
 #endif
@@ -6174,7 +6253,7 @@ void bssn_class::RestrictProlong(int lev, int YN, bool BB,
 #endif

 #if (RPB == 0)
-      Parallel::Restrict_cached(GH->PatL[lev - 1], GH->PatL[lev], SL, SL, Symmetry, sync_cache_restrict[lev]);
+      restrict_evolution(lev, SL, SL);
 #elif (RPB == 1)
      //       Parallel::Restrict_bam(GH->PatL[lev-1],GH->PatL[lev],SL,SL,Symmetry);
      Parallel::Restrict_bam(GH->PatL[lev - 1], GH->PatL[lev], SL, SL, GH->rsul[lev], Symmetry);
@@ -6187,7 +6266,7 @@ void bssn_class::RestrictProlong(int lev, int YN, bool BB,
 //       misc::tillherecheck(GH->Commlev[GH->mylev],GH->start_rank[GH->mylev],a_stream.str());
 #endif

-      Parallel::Sync_cached(GH->PatL[lev - 1], SL, Symmetry, sync_cache_rp_coarse[lev]);
+      sync_evolution(lev - 1, SL, sync_cache_rp_coarse);

 #if (PSTR == 1 || PSTR == 2)
 //       a_stream.clear();
@@ -6198,7 +6277,7 @@ void bssn_class::RestrictProlong(int lev, int YN, bool BB,

 #if (RPB == 0)
 #if (MIXOUTB == 0)
-      Parallel::OutBdLow2Hi_cached(GH->PatL[lev - 1], GH->PatL[lev], SL, SL, Symmetry, sync_cache_outbd[lev]);
+      outbdlow2hi_evolution(lev, SL, SL);
 #elif (MIXOUTB == 1)
      Parallel::OutBdLow2Himix(GH->PatL[lev - 1], GH->PatL[lev], SL, SL, Symmetry);
 #endif
@@ -6215,7 +6294,7 @@ void bssn_class::RestrictProlong(int lev, int YN, bool BB,
 #endif
    }

-    Parallel::Sync_cached(GH->PatL[lev], SL, Symmetry, sync_cache_rp_fine[lev]);
+    sync_evolution(lev, SL, sync_cache_rp_fine);

 #if (PSTR == 1 || PSTR == 2)
 //    a_stream.clear();
@@ -6244,6 +6323,91 @@ void bssn_class::RestrictProlong_aux(int lev, int YN, bool BB,
 //
 // SynchList_cor  old -----------
 {
+#if (ABEtype == 1 || ABEtype == 2)
+  if (lev >= GH->levels - 1)
+    return;
+  lev = lev + 1;
+
+  if (lev > 0)
+  {
+    MyList<Patch> *Pp, *Ppc;
+    if (lev > trfls && YN == 0)
+    {
+      Pp = GH->PatL[lev - 1];
+      while (Pp)
+      {
+        if (BB)
+          Parallel::prepare_inter_time_level(Pp->data, SL, OL, corL,
+                                             SynchList_pre, 0);
+        else
+          Parallel::prepare_inter_time_level(Pp->data, SL, OL,
+                                             SynchList_pre, 0);
+        Pp = Pp->next;
+      }
+
+#if (RPB == 0)
+      Parallel::Restrict(GH->PatL[lev - 1], GH->PatL[lev], SL, SynchList_pre, Symmetry);
+#elif (RPB == 1)
+      Parallel::Restrict_bam(GH->PatL[lev - 1], GH->PatL[lev], SL, SynchList_pre, GH->rsul[lev], Symmetry);
+#endif
+
+      Parallel::Sync(GH->PatL[lev - 1], SynchList_pre, Symmetry);
+
+#if (RPB == 0)
+      Ppc = GH->PatL[lev - 1];
+      while (Ppc)
+      {
+        Pp = GH->PatL[lev];
+        while (Pp)
+        {
+#if (MIXOUTB == 0)
+          Parallel::OutBdLow2Hi(Ppc->data, Pp->data, SynchList_pre, SL, Symmetry);
+#elif (MIXOUTB == 1)
+          Parallel::OutBdLow2Himix(Ppc->data, Pp->data, SynchList_pre, SL, Symmetry);
+#endif
+          Pp = Pp->next;
+        }
+        Ppc = Ppc->next;
+      }
+#elif (RPB == 1)
+      Parallel::OutBdLow2Hi_bam(GH->PatL[lev - 1], GH->PatL[lev], SynchList_pre, SL, GH->bdsul[lev], Symmetry);
+#endif
+    }
+    else
+    {
+#if (RPB == 0)
+      Parallel::Restrict(GH->PatL[lev - 1], GH->PatL[lev], SL, SL, Symmetry);
+#elif (RPB == 1)
+      Parallel::Restrict_bam(GH->PatL[lev - 1], GH->PatL[lev], SL, SL, GH->rsul[lev], Symmetry);
+#endif
+
+      Parallel::Sync(GH->PatL[lev - 1], SL, Symmetry);
+
+#if (RPB == 0)
+      Ppc = GH->PatL[lev - 1];
+      while (Ppc)
+      {
+        Pp = GH->PatL[lev];
+        while (Pp)
+        {
+#if (MIXOUTB == 0)
+          Parallel::OutBdLow2Hi(Ppc->data, Pp->data, SL, SL, Symmetry);
+#elif (MIXOUTB == 1)
+          Parallel::OutBdLow2Himix(Ppc->data, Pp->data, SL, SL, Symmetry);
+#endif
+          Pp = Pp->next;
+        }
+        Ppc = Ppc->next;
+      }
+#elif (RPB == 1)
+      Parallel::OutBdLow2Hi_bam(GH->PatL[lev - 1], GH->PatL[lev], SL, SL, GH->bdsul[lev], Symmetry);
+#endif
+    }
+
+    Parallel::Sync(GH->PatL[lev], SL, Symmetry);
+  }
+  return;
+#endif
  STEP_TIMER_DECL(timer_restrict_prolong);
  //  misc::tillherecheck(GH->Commlev[lev],GH->start_rank[lev],"starting RestrictProlong_aux");

@@ -6269,17 +6433,17 @@ void bssn_class::RestrictProlong_aux(int lev, int YN, bool BB,
      }

 #if (RPB == 0)
-      Parallel::Restrict_cached(GH->PatL[lev - 1], GH->PatL[lev], SL, SynchList_pre, Symmetry, sync_cache_restrict[lev]);
+      restrict_evolution(lev, SL, SynchList_pre);
 #elif (RPB == 1)
      //       Parallel::Restrict_bam(GH->PatL[lev-1],GH->PatL[lev],SL,SynchList_pre,Symmetry);
      Parallel::Restrict_bam(GH->PatL[lev - 1], GH->PatL[lev], SL, SynchList_pre, GH->rsul[lev], Symmetry);
 #endif

-      Parallel::Sync_cached(GH->PatL[lev - 1], SynchList_pre, Symmetry, sync_cache_rp_coarse[lev]);
+      sync_evolution(lev - 1, SynchList_pre, sync_cache_rp_coarse);

 #if (RPB == 0)
 #if (MIXOUTB == 0)
-      Parallel::OutBdLow2Hi_cached(GH->PatL[lev - 1], GH->PatL[lev], SynchList_pre, SL, Symmetry, sync_cache_outbd[lev]);
+      outbdlow2hi_evolution(lev, SynchList_pre, SL);
 #elif (MIXOUTB == 1)
      Parallel::OutBdLow2Himix(GH->PatL[lev - 1], GH->PatL[lev], SynchList_pre, SL, Symmetry);
 #endif
@@ -6291,17 +6455,17 @@ void bssn_class::RestrictProlong_aux(int lev, int YN, bool BB,
    else // no time refinement levels and for all same time levels
    {
 #if (RPB == 0)
-      Parallel::Restrict_cached(GH->PatL[lev - 1], GH->PatL[lev], SL, SL, Symmetry, sync_cache_restrict[lev]);
+      restrict_evolution(lev, SL, SL);
 #elif (RPB == 1)
      //       Parallel::Restrict_bam(GH->PatL[lev-1],GH->PatL[lev],SL,SL,Symmetry);
      Parallel::Restrict_bam(GH->PatL[lev - 1], GH->PatL[lev], SL, SL, GH->rsul[lev], Symmetry);
 #endif

-      Parallel::Sync_cached(GH->PatL[lev - 1], SL, Symmetry, sync_cache_rp_coarse[lev]);
+      sync_evolution(lev - 1, SL, sync_cache_rp_coarse);

 #if (RPB == 0)
 #if (MIXOUTB == 0)
-      Parallel::OutBdLow2Hi_cached(GH->PatL[lev - 1], GH->PatL[lev], SL, SL, Symmetry, sync_cache_outbd[lev]);
+      outbdlow2hi_evolution(lev, SL, SL);
 #elif (MIXOUTB == 1)
      Parallel::OutBdLow2Himix(GH->PatL[lev - 1], GH->PatL[lev], SL, SL, Symmetry);
 #endif
@@ -6311,7 +6475,11 @@ void bssn_class::RestrictProlong_aux(int lev, int YN, bool BB,
 #endif
    }

-    Parallel::Sync_cached(GH->PatL[lev], SL, Symmetry, sync_cache_rp_fine[lev]);
+#if (ABEtype == 1 || ABEtype == 2)
+    Parallel::Sync(GH->PatL[lev], SL, Symmetry);
+#else
+    sync_evolution(lev, SL, sync_cache_rp_fine);
+#endif
  }
  STEP_TIMER_ADD(TB_RESTRICT_PROLONG, timer_restrict_prolong);
 }
@@ -6324,8 +6492,93 @@ void bssn_class::RestrictProlong_aux(int lev, int YN, bool BB,

 void bssn_class::RestrictProlong(int lev, int YN, bool BB)
 {
-  STEP_TIMER_DECL(timer_restrict_prolong);
  double dT_lev = dT * pow(0.5, Mymax(lev, trfls));
+#if (ABEtype == 1 || ABEtype == 2)
+  if (lev > 0)
+  {
+    MyList<Patch> *Pp, *Ppc;
+    if (lev > trfls && YN == 0)
+    {
+      if (myrank == 0)
+        cout << "/=: " << GH->Lt[lev - 1] << "," << GH->Lt[lev] + dT_lev << endl;
+      Pp = GH->PatL[lev - 1];
+      while (Pp)
+      {
+        if (BB)
+          Parallel::prepare_inter_time_level(Pp->data, StateList, OldStateList, SynchList_cor,
+                                             SynchList_pre, 0);
+        else
+          Parallel::prepare_inter_time_level(Pp->data, StateList, OldStateList,
+                                             SynchList_pre, 0);
+        Pp = Pp->next;
+      }
+
+#if (RPB == 0)
+      Parallel::Restrict(GH->PatL[lev - 1], GH->PatL[lev], SynchList_cor, SynchList_pre, Symmetry);
+#elif (RPB == 1)
+      Parallel::Restrict_bam(GH->PatL[lev - 1], GH->PatL[lev], SynchList_cor, SynchList_pre, GH->rsul[lev], Symmetry);
+#endif
+
+      Parallel::Sync(GH->PatL[lev - 1], SynchList_pre, Symmetry);
+
+#if (RPB == 0)
+      Ppc = GH->PatL[lev - 1];
+      while (Ppc)
+      {
+        Pp = GH->PatL[lev];
+        while (Pp)
+        {
+#if (MIXOUTB == 0)
+          Parallel::OutBdLow2Hi(Ppc->data, Pp->data, SynchList_pre, SynchList_cor, Symmetry);
+#elif (MIXOUTB == 1)
+          Parallel::OutBdLow2Himix(Ppc->data, Pp->data, SynchList_pre, SynchList_cor, Symmetry);
+#endif
+          Pp = Pp->next;
+        }
+        Ppc = Ppc->next;
+      }
+#elif (RPB == 1)
+      Parallel::OutBdLow2Hi_bam(GH->PatL[lev - 1], GH->PatL[lev], SynchList_pre, SynchList_cor, GH->bdsul[lev], Symmetry);
+#endif
+    }
+    else
+    {
+      if (myrank == 0)
+        cout << "===: " << GH->Lt[lev - 1] << "," << GH->Lt[lev] + dT_lev << endl;
+#if (RPB == 0)
+      Parallel::Restrict(GH->PatL[lev - 1], GH->PatL[lev], SynchList_cor, StateList, Symmetry);
+#elif (RPB == 1)
+      Parallel::Restrict_bam(GH->PatL[lev - 1], GH->PatL[lev], SynchList_cor, StateList, GH->rsul[lev], Symmetry);
+#endif
+
+      Parallel::Sync(GH->PatL[lev - 1], StateList, Symmetry);
+
+#if (RPB == 0)
+      Ppc = GH->PatL[lev - 1];
+      while (Ppc)
+      {
+        Pp = GH->PatL[lev];
+        while (Pp)
+        {
+#if (MIXOUTB == 0)
+          Parallel::OutBdLow2Hi(Ppc->data, Pp->data, StateList, SynchList_cor, Symmetry);
+#elif (MIXOUTB == 1)
+          Parallel::OutBdLow2Himix(Ppc->data, Pp->data, StateList, SynchList_cor, Symmetry);
+#endif
+          Pp = Pp->next;
+        }
+        Ppc = Ppc->next;
+      }
+#elif (RPB == 1)
+      Parallel::OutBdLow2Hi_bam(GH->PatL[lev - 1], GH->PatL[lev], StateList, SynchList_cor, GH->bdsul[lev], Symmetry);
+#endif
+    }
+
+    Parallel::Sync(GH->PatL[lev], SynchList_cor, Symmetry);
+  }
+  return;
+#endif
+  STEP_TIMER_DECL(timer_restrict_prolong);
  // we assume  for fine
  // SynchList_cor 1   -----------
  //
@@ -6358,17 +6611,17 @@ void bssn_class::RestrictProlong(int lev, int YN, bool BB)
      }

 #if (RPB == 0)
-      Parallel::Restrict_cached(GH->PatL[lev - 1], GH->PatL[lev], SynchList_cor, SynchList_pre, Symmetry, sync_cache_restrict[lev]);
+      restrict_evolution(lev, SynchList_cor, SynchList_pre);
 #elif (RPB == 1)
      //       Parallel::Restrict_bam(GH->PatL[lev-1],GH->PatL[lev],SynchList_cor,SynchList_pre,Symmetry);
      Parallel::Restrict_bam(GH->PatL[lev - 1], GH->PatL[lev], SynchList_cor, SynchList_pre, GH->rsul[lev], Symmetry);
 #endif

-      Parallel::Sync_cached(GH->PatL[lev - 1], SynchList_pre, Symmetry, sync_cache_rp_coarse[lev]);
+      sync_evolution(lev - 1, SynchList_pre, sync_cache_rp_coarse);

 #if (RPB == 0)
 #if (MIXOUTB == 0)
-      Parallel::OutBdLow2Hi_cached(GH->PatL[lev - 1], GH->PatL[lev], SynchList_pre, SynchList_cor, Symmetry, sync_cache_outbd[lev]);
+      outbdlow2hi_evolution(lev, SynchList_pre, SynchList_cor);
 #elif (MIXOUTB == 1)
      Parallel::OutBdLow2Himix(GH->PatL[lev - 1], GH->PatL[lev], SynchList_pre, SynchList_cor, Symmetry);
 #endif
@@ -6382,17 +6635,17 @@ void bssn_class::RestrictProlong(int lev, int YN, bool BB)
      if (myrank == 0)
        cout << "===: " << GH->Lt[lev - 1] << "," << GH->Lt[lev] + dT_lev << endl;
 #if (RPB == 0)
-      Parallel::Restrict_cached(GH->PatL[lev - 1], GH->PatL[lev], SynchList_cor, StateList, Symmetry, sync_cache_restrict[lev]);
+      restrict_evolution(lev, SynchList_cor, StateList);
 #elif (RPB == 1)
      //       Parallel::Restrict_bam(GH->PatL[lev-1],GH->PatL[lev],SynchList_cor,StateList,Symmetry);
      Parallel::Restrict_bam(GH->PatL[lev - 1], GH->PatL[lev], SynchList_cor, StateList, GH->rsul[lev], Symmetry);
 #endif

-      Parallel::Sync_cached(GH->PatL[lev - 1], StateList, Symmetry, sync_cache_rp_coarse[lev]);
+      sync_evolution(lev - 1, StateList, sync_cache_rp_coarse);

 #if (RPB == 0)
 #if (MIXOUTB == 0)
-      Parallel::OutBdLow2Hi_cached(GH->PatL[lev - 1], GH->PatL[lev], StateList, SynchList_cor, Symmetry, sync_cache_outbd[lev]);
+      outbdlow2hi_evolution(lev, StateList, SynchList_cor);
 #elif (MIXOUTB == 1)
      Parallel::OutBdLow2Himix(GH->PatL[lev - 1], GH->PatL[lev], StateList, SynchList_cor, Symmetry);
 #endif
@@ -6402,7 +6655,7 @@ void bssn_class::RestrictProlong(int lev, int YN, bool BB)
 #endif
    }

-    Parallel::Sync_cached(GH->PatL[lev], SynchList_cor, Symmetry, sync_cache_rp_fine[lev]);
+    sync_evolution(lev, SynchList_cor, sync_cache_rp_fine);
  }
  STEP_TIMER_ADD(TB_RESTRICT_PROLONG, timer_restrict_prolong);
 }
@@ -6434,7 +6687,7 @@ void bssn_class::ProlongRestrict(int lev, int YN, bool BB)

 #if (RPB == 0)
 #if (MIXOUTB == 0)
-      Parallel::OutBdLow2Hi_cached(GH->PatL[lev - 1], GH->PatL[lev], SynchList_pre, SynchList_cor, Symmetry, sync_cache_outbd[lev]);
+      outbdlow2hi_evolution(lev, SynchList_pre, SynchList_cor);
 #elif (MIXOUTB == 1)
      Parallel::OutBdLow2Himix(GH->PatL[lev - 1], GH->PatL[lev], SynchList_pre, SynchList_cor, Symmetry);
 #endif
@@ -6447,7 +6700,7 @@ void bssn_class::ProlongRestrict(int lev, int YN, bool BB)
    {
 #if (RPB == 0)
 #if (MIXOUTB == 0)
-      Parallel::OutBdLow2Hi_cached(GH->PatL[lev - 1], GH->PatL[lev], StateList, SynchList_cor, Symmetry, sync_cache_outbd[lev]);
+      outbdlow2hi_evolution(lev, StateList, SynchList_cor);
 #elif (MIXOUTB == 1)
      Parallel::OutBdLow2Himix(GH->PatL[lev - 1], GH->PatL[lev], StateList, SynchList_cor, Symmetry);
 #endif
@@ -6466,10 +6719,10 @@ void bssn_class::ProlongRestrict(int lev, int YN, bool BB)
 #else
      Parallel::Restrict_after(GH->PatL[lev - 1], GH->PatL[lev], SynchList_cor, StateList, Symmetry);
 #endif
-      Parallel::Sync_cached(GH->PatL[lev - 1], StateList, Symmetry, sync_cache_rp_coarse[lev]);
+      sync_evolution(lev - 1, StateList, sync_cache_rp_coarse);
    }

-    Parallel::Sync_cached(GH->PatL[lev], SynchList_cor, Symmetry, sync_cache_rp_fine[lev]);
+    sync_evolution(lev, SynchList_cor, sync_cache_rp_fine);
  }
 }
 #undef MIXOUTB
@@ -7199,6 +7452,169 @@ void bssn_class::compute_Porg_rhs(double **BH_PS, double **BH_RHS, var *forx, va
    }
  }
 }
+
+bool bssn_class::use_transfer_cache() const
+{
+#if BSSN_USE_TRANSFER_CACHE
+  return true;
+#else
+  return false;
+#endif
+}
+
+void bssn_class::setup_transfer_caches()
+{
+  sync_cache_pre = 0;
+  sync_cache_cor = 0;
+  sync_cache_rp_coarse = 0;
+  sync_cache_rp_fine = 0;
+  sync_cache_restrict = 0;
+  sync_cache_outbd = 0;
+
+  if (!use_transfer_cache() || !GH)
+    return;
+
+  sync_cache_pre = new Parallel::SyncCache[GH->levels];
+  sync_cache_cor = new Parallel::SyncCache[GH->levels];
+  sync_cache_rp_coarse = new Parallel::SyncCache[GH->levels];
+  sync_cache_rp_fine = new Parallel::SyncCache[GH->levels];
+  sync_cache_restrict = new Parallel::SyncCache[GH->levels];
+  sync_cache_outbd = new Parallel::SyncCache[GH->levels];
+}
+
+void bssn_class::invalidate_transfer_caches()
+{
+  if (!use_transfer_cache() || !GH || !sync_cache_pre || !sync_cache_cor ||
+      !sync_cache_rp_coarse || !sync_cache_rp_fine || !sync_cache_restrict || !sync_cache_outbd)
+    return;
+
+  for (int il = 0; il < GH->levels; il++)
+  {
+    sync_cache_pre[il].invalidate();
+    sync_cache_cor[il].invalidate();
+    sync_cache_rp_coarse[il].invalidate();
+    sync_cache_rp_fine[il].invalidate();
+    sync_cache_restrict[il].invalidate();
+    sync_cache_outbd[il].invalidate();
+  }
+}
+
+void bssn_class::destroy_transfer_caches()
+{
+  if (sync_cache_pre)
+  {
+    if (use_transfer_cache() && GH)
+      for (int i = 0; i < GH->levels; i++)
+        sync_cache_pre[i].destroy();
+    delete[] sync_cache_pre;
+    sync_cache_pre = 0;
+  }
+  if (sync_cache_cor)
+  {
+    if (use_transfer_cache() && GH)
+      for (int i = 0; i < GH->levels; i++)
+        sync_cache_cor[i].destroy();
+    delete[] sync_cache_cor;
+    sync_cache_cor = 0;
+  }
+  if (sync_cache_rp_coarse)
+  {
+    if (use_transfer_cache() && GH)
+      for (int i = 0; i < GH->levels; i++)
+        sync_cache_rp_coarse[i].destroy();
+    delete[] sync_cache_rp_coarse;
+    sync_cache_rp_coarse = 0;
+  }
+  if (sync_cache_rp_fine)
+  {
+    if (use_transfer_cache() && GH)
+      for (int i = 0; i < GH->levels; i++)
+        sync_cache_rp_fine[i].destroy();
+    delete[] sync_cache_rp_fine;
+    sync_cache_rp_fine = 0;
+  }
+  if (sync_cache_restrict)
+  {
+    if (use_transfer_cache() && GH)
+      for (int i = 0; i < GH->levels; i++)
+        sync_cache_restrict[i].destroy();
+    delete[] sync_cache_restrict;
+    sync_cache_restrict = 0;
+  }
+  if (sync_cache_outbd)
+  {
+    if (use_transfer_cache() && GH)
+      for (int i = 0; i < GH->levels; i++)
+        sync_cache_outbd[i].destroy();
+    delete[] sync_cache_outbd;
+    sync_cache_outbd = 0;
+  }
+}
+
+void bssn_class::sync_predictor_start(int lev, MyList<var> *VarList, Parallel::AsyncSyncState &async_state)
+{
+  if (use_transfer_cache())
+    Parallel::Sync_start(GH->PatL[lev], VarList, Symmetry, sync_cache_pre[lev], async_state);
+  else
+    Parallel::Sync(GH->PatL[lev], VarList, Symmetry);
+}
+
+void bssn_class::sync_predictor_finish(int lev, Parallel::AsyncSyncState &async_state, MyList<var> *VarList)
+{
+  if (use_transfer_cache())
+    Parallel::Sync_finish(sync_cache_pre[lev], async_state, VarList, Symmetry);
+}
+
+void bssn_class::sync_corrector_start(int lev, MyList<var> *VarList, Parallel::AsyncSyncState &async_state)
+{
+  if (use_transfer_cache())
+    Parallel::Sync_start(GH->PatL[lev], VarList, Symmetry, sync_cache_cor[lev], async_state);
+  else
+    Parallel::Sync(GH->PatL[lev], VarList, Symmetry);
+}
+
+void bssn_class::sync_corrector_finish(int lev, Parallel::AsyncSyncState &async_state, MyList<var> *VarList)
+{
+  if (use_transfer_cache())
+    Parallel::Sync_finish(sync_cache_cor[lev], async_state, VarList, Symmetry);
+}
+
+void bssn_class::sync_evolution(int lev, MyList<var> *VarList, Parallel::SyncCache *cache_array)
+{
+  if (use_transfer_cache() && cache_array)
+    Parallel::Sync_cached(GH->PatL[lev], VarList, Symmetry, cache_array[lev]);
+  else
+    Parallel::Sync(GH->PatL[lev], VarList, Symmetry);
+}
+
+void bssn_class::restrict_evolution(int lev, MyList<var> *src_var_list, MyList<var> *dst_var_list)
+{
+  if (use_transfer_cache())
+    Parallel::Restrict_cached(GH->PatL[lev - 1], GH->PatL[lev], src_var_list, dst_var_list, Symmetry, sync_cache_restrict[lev]);
+  else
+    Parallel::Restrict(GH->PatL[lev - 1], GH->PatL[lev], src_var_list, dst_var_list, Symmetry);
+}
+
+void bssn_class::outbdlow2hi_evolution(int lev, MyList<var> *src_var_list, MyList<var> *dst_var_list)
+{
+  if (use_transfer_cache())
+  {
+    Parallel::OutBdLow2Hi_cached(GH->PatL[lev - 1], GH->PatL[lev], src_var_list, dst_var_list, Symmetry, sync_cache_outbd[lev]);
+    return;
+  }
+
+  MyList<Patch> *Ppc = GH->PatL[lev - 1];
+  while (Ppc)
+  {
+    MyList<Patch> *Pp = GH->PatL[lev];
+    while (Pp)
+    {
+      Parallel::OutBdLow2Hi(Ppc->data, Pp->data, src_var_list, dst_var_list, Symmetry);
+      Pp = Pp->next;
+    }
+    Ppc = Ppc->next;
+  }
+}
 #endif

 //================================================================================================
--- a/AMSS_NCKU_source/BSSN/bssn_class.h
+++ b/AMSS_NCKU_source/BSSN/bssn_class.h
@@ -33,6 +33,14 @@ using namespace std;

 extern void setpbh(int iBHN, double **iPBH, double *iMass, int rBHN);

+#ifndef BSSN_USE_TRANSFER_CACHE
+#define BSSN_USE_TRANSFER_CACHE 1
+#endif
+
+#ifndef BSSN_USE_ESCALAR_C_KERNEL
+#define BSSN_USE_ESCALAR_C_KERNEL 1
+#endif
+
 class bssn_class
 {
 public:
@@ -171,6 +179,17 @@ public:
       void testOutBd();
       
       bool check_Stdin_Abort(); 
+       bool use_transfer_cache() const;
+       void setup_transfer_caches();
+       void invalidate_transfer_caches();
+       void destroy_transfer_caches();
+       void sync_predictor_start(int lev, MyList<var> *VarList, Parallel::AsyncSyncState &async_state);
+       void sync_predictor_finish(int lev, Parallel::AsyncSyncState &async_state, MyList<var> *VarList);
+       void sync_corrector_start(int lev, MyList<var> *VarList, Parallel::AsyncSyncState &async_state);
+       void sync_corrector_finish(int lev, Parallel::AsyncSyncState &async_state, MyList<var> *VarList);
+       void sync_evolution(int lev, MyList<var> *VarList, Parallel::SyncCache *cache_array = 0);
+       void restrict_evolution(int lev, MyList<var> *src_var_list, MyList<var> *dst_var_list);
+       void outbdlow2hi_evolution(int lev, MyList<var> *src_var_list, MyList<var> *dst_var_list);

       virtual void Setup_Initial_Data_Cao();
       virtual void Setup_Initial_Data_Lousto();
--- a/AMSS_NCKU_source/BSSN/bssn_constraint.f90
+++ b/AMSS_NCKU_source/BSSN/bssn_constraint.f90
--- a/AMSS_NCKU_source/bssn_em_rhs_c.C
+++ b/AMSS_NCKU_source/bssn_em_rhs_c.C
@@ -0,0 +1,323 @@
+#include "macrodef.h"
+#include "bssn_rhs.h"
+#include "share_func.h"
+#include "tool.h"
+#include <cstddef>
+
+/*
+ * C 版 BSSN-EM RHS kernel — replaces empart.f90 + bssn_rhs.f90 for BSSN+Maxwell.
+ *
+ * Computes:
+ *   1. All metric and EM field derivatives
+ *   2. Physical metric, Christoffel-like terms
+ *   3. EM field RHS (E, B, Kpsi, Kphi)
+ *   4. Stress-energy tensor (rho, Si, Sij)
+ *   5. Calls f_compute_rhs_bssn (C BSSN RHS) with stress-energy
+ *   6. Advection + KO dissipation for EM fields
+ *   7. NaN check
+ */
+int f_compute_rhs_bssn_em_c(int *ex, double &T,
+                            double *X, double *Y, double *Z,
+                            double *chi, double *trK,
+                            double *dxx, double *gxy, double *gxz, double *dyy, double *gyz, double *dzz,
+                            double *Axx, double *Axy, double *Axz, double *Ayy, double *Ayz, double *Azz,
+                            double *Gamx, double *Gamy, double *Gamz,
+                            double *Lap, double *betax, double *betay, double *betaz,
+                            double *dtSfx, double *dtSfy, double *dtSfz,
+                            double *Ex,  double *Ey,  double *Ez,
+                            double *Bx,  double *By,  double *Bz,
+                            double *Kpsi, double *Kphi,
+                            double *Jx, double *Jy, double *Jz, double *qchar,
+                            double *chi_rhs, double *trK_rhs,
+                            double *gxx_rhs, double *gxy_rhs, double *gxz_rhs,
+                            double *gyy_rhs, double *gyz_rhs, double *gzz_rhs,
+                            double *Axx_rhs, double *Axy_rhs, double *Axz_rhs,
+                            double *Ayy_rhs, double *Ayz_rhs, double *Azz_rhs,
+                            double *Gamx_rhs, double *Gamy_rhs, double *Gamz_rhs,
+                            double *Lap_rhs, double *betax_rhs, double *betay_rhs, double *betaz_rhs,
+                            double *dtSfx_rhs, double *dtSfy_rhs, double *dtSfz_rhs,
+                            double *Ex_rhs,  double *Ey_rhs,  double *Ez_rhs,
+                            double *Bx_rhs,  double *By_rhs,  double *Bz_rhs,
+                            double *Kpsi_rhs, double *Kphi_rhs,
+                            double *rho, double *Sx, double *Sy, double *Sz,
+                            double *Sxx, double *Sxy, double *Sxz,
+                            double *Syy, double *Syz, double *Szz,
+                            double *Gamxxx, double *Gamxxy, double *Gamxxz,
+                            double *Gamxyy, double *Gamxyz, double *Gamxzz,
+                            double *Gamyxx, double *Gamyxy, double *Gamyxz,
+                            double *Gamyyy, double *Gamyyz, double *Gamyzz,
+                            double *Gamzxx, double *Gamzxy, double *Gamzxz,
+                            double *Gamzyy, double *Gamzyz, double *Gamzzz,
+                            double *Rxx, double *Rxy, double *Rxz,
+                            double *Ryy, double *Ryz, double *Rzz,
+                            double *ham_Res, double *movx_Res, double *movy_Res, double *movz_Res,
+                            double *Gmx_Res, double *Gmy_Res, double *Gmz_Res,
+                            int &Symmetry, int &Lev, double &eps, int &co)
+{
+    (void)T;
+    int gont = 0;
+    const int nx = ex[0], ny = ex[1], nz = ex[2];
+    const int all = nx * ny * nz;
+    const size_t n = (size_t)all;
+
+    const double ZEO = 0.0, ONE = 1.0, TWO = 2.0, FOUR = 4.0, EIT = 8.0;
+    const double HALF = 0.5, THR = 3.0, F3o2 = 1.5, PI = 3.14159265358979323846;
+    const double SYM = 1.0, ANTI = -1.0;
+    const double kappa = 1.0;
+    const double SSS[3]={SYM,SYM,SYM},   AAS[3]={ANTI,ANTI,SYM};
+    const double ASA[3]={ANTI,SYM,ANTI}, SAA[3]={SYM,ANTI,ANTI};
+    const double ASS[3]={ANTI,SYM,SYM},   SAS[3]={SYM,ANTI,SYM};
+    const double SSA[3]={SYM,SYM,ANTI};
+
+    /* ---- allocate temporary arrays ---- */
+    double *chix = (double*)malloc(n*sizeof(double));
+    double *chiy = (double*)malloc(n*sizeof(double));
+    double *chiz = (double*)malloc(n*sizeof(double));
+    double *Exx=(double*)malloc(n*sizeof(double)),*Exy=(double*)malloc(n*sizeof(double)),*Exz=(double*)malloc(n*sizeof(double));
+    double *Eyx=(double*)malloc(n*sizeof(double)),*Eyy=(double*)malloc(n*sizeof(double)),*Eyz=(double*)malloc(n*sizeof(double));
+    double *Ezx=(double*)malloc(n*sizeof(double)),*Ezy=(double*)malloc(n*sizeof(double)),*Ezz=(double*)malloc(n*sizeof(double));
+    double *Bxx=(double*)malloc(n*sizeof(double)),*Bxy=(double*)malloc(n*sizeof(double)),*Bxz=(double*)malloc(n*sizeof(double));
+    double *Byx=(double*)malloc(n*sizeof(double)),*Byy=(double*)malloc(n*sizeof(double)),*Byz=(double*)malloc(n*sizeof(double));
+    double *Bzx=(double*)malloc(n*sizeof(double)),*Bzy=(double*)malloc(n*sizeof(double)),*Bzz=(double*)malloc(n*sizeof(double));
+    double *Kpsix=(double*)malloc(n*sizeof(double)),*Kpsiy=(double*)malloc(n*sizeof(double)),*Kpsiz=(double*)malloc(n*sizeof(double));
+    double *Kphix=(double*)malloc(n*sizeof(double)),*Kphiy=(double*)malloc(n*sizeof(double)),*Kphiz=(double*)malloc(n*sizeof(double));
+    double *Lapx=(double*)malloc(n*sizeof(double)),*Lapy=(double*)malloc(n*sizeof(double)),*Lapz=(double*)malloc(n*sizeof(double));
+    double *betaxx=(double*)malloc(n*sizeof(double)),*betaxy=(double*)malloc(n*sizeof(double)),*betaxz=(double*)malloc(n*sizeof(double));
+    double *betayx=(double*)malloc(n*sizeof(double)),*betayy=(double*)malloc(n*sizeof(double)),*betayz=(double*)malloc(n*sizeof(double));
+    double *betazx=(double*)malloc(n*sizeof(double)),*betazy=(double*)malloc(n*sizeof(double)),*betazz=(double*)malloc(n*sizeof(double));
+    double *gxxx=(double*)malloc(n*sizeof(double)),*gxxy=(double*)malloc(n*sizeof(double)),*gxxz=(double*)malloc(n*sizeof(double));
+    double *gxyx=(double*)malloc(n*sizeof(double)),*gxyy=(double*)malloc(n*sizeof(double)),*gxyz=(double*)malloc(n*sizeof(double));
+    double *gxzx=(double*)malloc(n*sizeof(double)),*gxzy=(double*)malloc(n*sizeof(double)),*gxzz=(double*)malloc(n*sizeof(double));
+    double *gyyx=(double*)malloc(n*sizeof(double)),*gyyy=(double*)malloc(n*sizeof(double)),*gyyz=(double*)malloc(n*sizeof(double));
+    double *gyzx=(double*)malloc(n*sizeof(double)),*gyzy=(double*)malloc(n*sizeof(double)),*gyzz=(double*)malloc(n*sizeof(double));
+    double *gzzx=(double*)malloc(n*sizeof(double)),*gzzy=(double*)malloc(n*sizeof(double)),*gzzz=(double*)malloc(n*sizeof(double));
+    double *gupxx=(double*)malloc(n*sizeof(double)),*gupxy=(double*)malloc(n*sizeof(double)),*gupxz=(double*)malloc(n*sizeof(double));
+    double *gupyy=(double*)malloc(n*sizeof(double)),*gupyz=(double*)malloc(n*sizeof(double)),*gupzz=(double*)malloc(n*sizeof(double));
+
+    if (!chix||!chiy||!chiz||!Exx||!Exy||!Exz||!Eyx||!Eyy||!Eyz||!Ezx||!Ezy||!Ezz||
+        !Bxx||!Bxy||!Bxz||!Byx||!Byy||!Byz||!Bzx||!Bzy||!Bzz||
+        !Kpsix||!Kpsiy||!Kpsiz||!Kphix||!Kphiy||!Kphiz||
+        !Lapx||!Lapy||!Lapz||
+        !betaxx||!betaxy||!betaxz||!betayx||!betayy||!betayz||!betazx||!betazy||!betazz||
+        !gxxx||!gxxy||!gxxz||!gxyx||!gxyy||!gxyz||!gxzx||!gxzy||!gxzz||
+        !gyyx||!gyyy||!gyyz||!gyzx||!gyzy||!gyzz||!gzzx||!gzzy||!gzzz||
+        !gupxx||!gupxy||!gupxz||!gupyy||!gupyz||!gupzz) {
+        gont = 1;
+    }
+
+    /* ==== 1. Compute all derivatives ==== */
+    if (!gont) {
+
+    /* metric derivatives */
+    fderivs(ex, Lap, Lapx, Lapy, Lapz, X, Y, Z, SYM, SYM, SYM, Symmetry, Lev);
+    fderivs(ex, betax, betaxx, betaxy, betaxz, X, Y, Z, ANTI, SYM, SYM, Symmetry, Lev);
+    fderivs(ex, betay, betayx, betayy, betayz, X, Y, Z, SYM, ANTI, SYM, Symmetry, Lev);
+    fderivs(ex, betaz, betazx, betazy, betazz, X, Y, Z, SYM, SYM, ANTI, Symmetry, Lev);
+    fderivs(ex, chi, chix, chiy, chiz, X, Y, Z, SYM, SYM, SYM, Symmetry, Lev);
+    fderivs(ex, dxx, gxxx, gxxy, gxxz, X, Y, Z, SYM, SYM, SYM, Symmetry, Lev);
+    fderivs(ex, gxy, gxyx, gxyy, gxyz, X, Y, Z, ANTI, ANTI, SYM, Symmetry, Lev);
+    fderivs(ex, gxz, gxzx, gxzy, gxzz, X, Y, Z, ANTI, SYM, ANTI, Symmetry, Lev);
+    fderivs(ex, dyy, gyyx, gyyy, gyyz, X, Y, Z, SYM, SYM, SYM, Symmetry, Lev);
+    fderivs(ex, gyz, gyzx, gyzy, gyzz, X, Y, Z, SYM, ANTI, ANTI, Symmetry, Lev);
+    fderivs(ex, dzz, gzzx, gzzy, gzzz, X, Y, Z, SYM, SYM, SYM, Symmetry, Lev);
+
+    /* EM field derivatives */
+    fderivs(ex, Kpsi, Kpsix, Kpsiy, Kpsiz, X, Y, Z, SYM, SYM, SYM, Symmetry, Lev);
+    fderivs(ex, Kphi, Kphix, Kphiy, Kphiz, X, Y, Z, SYM, SYM, SYM, Symmetry, Lev);
+    fderivs(ex, Ex, Exx, Exy, Exz, X, Y, Z, ANTI, SYM, SYM, Symmetry, Lev);
+    fderivs(ex, Ey, Eyx, Eyy, Eyz, X, Y, Z, SYM, ANTI, SYM, Symmetry, Lev);
+    fderivs(ex, Ez, Ezx, Ezy, Ezz, X, Y, Z, SYM, SYM, ANTI, Symmetry, Lev);
+    fderivs(ex, Bx, Bxx, Bxy, Bxz, X, Y, Z, SYM, ANTI, ANTI, Symmetry, Lev);
+    fderivs(ex, By, Byx, Byy, Byz, X, Y, Z, ANTI, SYM, ANTI, Symmetry, Lev);
+    fderivs(ex, Bz, Bzx, Bzy, Bzz, X, Y, Z, ANTI, ANTI, SYM, Symmetry, Lev);
+
+    /* ==== 2. Compute EM RHS and stress-energy ==== */
+    const double F1o4PI = ONE / (FOUR * PI);
+    for (size_t i = 0; i < n; ++i) {
+        const double alpn1 = Lap[i] + ONE;
+        const double chin1 = chi[i] + ONE;
+        const double chi3o2 = sqrt(chin1) * chin1;  // chi^{3/2}
+        const double ichi = ONE / chin1;
+
+        /* physical metric */
+        const double pgxx = (dxx[i] + ONE) * ichi;
+        const double pgyy = (dyy[i] + ONE) * ichi;
+        const double pgzz = (dzz[i] + ONE) * ichi;
+        const double pgxy = gxy[i] * ichi;
+        const double pgxz = gxz[i] * ichi;
+        const double pgyz = gyz[i] * ichi;
+
+        /* inverse physical metric */
+        const double det = pgxx * pgyy * pgzz + pgxy * pgyz * pgxz + pgxz * pgxy * pgyz
+                         - pgxz * pgyy * pgxz - pgxy * pgxy * pgzz - pgxx * pgyz * pgyz;
+        const double idet = ONE / det;
+        const double upxx = (pgyy * pgzz - pgyz * pgyz) * idet;
+        const double upxy = -(pgxy * pgzz - pgyz * pgxz) * idet;
+        const double upxz = (pgxy * pgyz - pgyy * pgxz) * idet;
+        const double upyy = (pgxx * pgzz - pgxz * pgxz) * idet;
+        const double upyz = -(pgxx * pgyz - pgxy * pgxz) * idet;
+        const double upzz = (pgxx * pgyy - pgxy * pgxy) * idet;
+        gupxx[i]=upxx; gupxy[i]=upxy; gupxz[i]=upxz;
+        gupyy[i]=upyy; gupyz[i]=upyz; gupzz[i]=upzz;
+
+        /* E-field RHS */
+        /* curl(B) part: epsilon^{ijk} ∂_j (alpha * B_k) in coordinate basis */
+        /* Using lower-index B fields: B_i_lower = pg_{ij} * B^j */
+        const double BxL = pgxx*Bx[i] + pgxy*By[i] + pgxz*Bz[i];
+        const double ByL = pgxy*Bx[i] + pgyy*By[i] + pgyz*Bz[i];
+        const double BzL = pgxz*Bx[i] + pgyz*By[i] + pgzz*Bz[i];
+
+        /* Physical metric derivatives (chain rule from conformal) */
+        const double pgxx_x = (gxxx[i] - pgxx*chix[i]) * ichi;
+        /* const double pgxx_y = (gxxy[i] - pgxx*chiy[i]) * ichi; */
+        const double pgxy_x = (gxyx[i] - pgxy*chix[i]) * ichi;
+        const double pgxy_y = (gxyy[i] - pgxy*chiy[i]) * ichi;
+        const double pgxz_x = (gxzx[i] - pgxz*chix[i]) * ichi;
+        const double pgxz_z = (gxzz[i] - pgxz*chiz[i]) * ichi;
+        const double pgyy_y = (gyyy[i] - pgyy*chiy[i]) * ichi;
+        const double pgyz_y = (gyzy[i] - pgyz*chiy[i]) * ichi;
+        const double pgyz_z = (gyzz[i] - pgyz*chiz[i]) * ichi;
+        const double pgzz_z = (gzzz[i] - pgzz*chiz[i]) * ichi;
+
+        /* Curl_x(B) = ∂_y (alpha*BzL) - ∂_z (alpha*ByL) */
+        const double aBx = alpn1*BxL, aBy = alpn1*ByL, aBz = alpn1*BzL;
+        const double curlBx = (aBz*Lapy[i] + alpn1*(pgxz*Bxy[i]+pgyz*Byy[i]+pgzz*Bzy[i]) + alpn1*(Bx[i]*gxzy[i]+By[i]*gyzy[i]+Bz[i]*gzzy[i]))
+                            - (aBy*Lapz[i] + alpn1*(pgxy*Bxz[i]+pgyy*Byz[i]+pgyz*Bzz[i]) + alpn1*(Bx[i]*gxyz[i]+By[i]*gyyz[i]+Bz[i]*gyzz[i]));
+        double curlBy = (aBx*Lapz[i] + alpn1*(pgxx*Bxz[i]+pgxy*Byz[i]+pgxz*Bzz[i]) + alpn1*(Bx[i]*gxxz[i]+By[i]*gxyz[i]+Bz[i]*gxzz[i]))
+                      - (aBz*Lapx[i] + alpn1*(pgxz*Bxx[i]+pgyz*Byx[i]+pgzz*Bzx[i]) + alpn1*(Bx[i]*gxzx[i]+By[i]*gyzx[i]+Bz[i]*gzzx[i]));
+        double curlBz = (aBy*Lapx[i] + alpn1*(pgxy*Bxx[i]+pgyy*Byx[i]+pgyz*Bzx[i]) + alpn1*(Bx[i]*gxyx[i]+By[i]*gyyx[i]+Bz[i]*gyzx[i]))
+                      - (aBx*Lapy[i] + alpn1*(pgxx*Bxy[i]+pgxy*Byy[i]+pgxz*Bzy[i]) + alpn1*(Bx[i]*gxxy[i]+By[i]*gxyy[i]+Bz[i]*gxzy[i]));
+
+        /* Advection part: -beta^j * ∂_j E^i */
+        const double advEx = Ex[i]*betaxx[i] + Ey[i]*betaxy[i] + Ez[i]*betaxz[i];
+        const double advEy = Ex[i]*betayx[i] + Ey[i]*betayy[i] + Ez[i]*betayz[i];
+        const double advEz = Ex[i]*betazx[i] + Ey[i]*betazy[i] + Ez[i]*betazz[i];
+
+        /* grad(Kpsi) contracted with inverse metric */
+        const double gupKx = upxx*Kpsix[i] + upxy*Kpsiy[i] + upxz*Kpsiz[i];
+        const double gupKy = upxy*Kpsix[i] + upyy*Kpsiy[i] + upyz*Kpsiz[i];
+        const double gupKz = upxz*Kpsix[i] + upyz*Kpsiy[i] + upzz*Kpsiz[i];
+
+        Ex_rhs[i] = alpn1*trK[i]*Ex[i] - advEx - FOUR*PI*alpn1*Jx[i] - alpn1*gupKx + chi3o2*curlBx;
+        Ey_rhs[i] = alpn1*trK[i]*Ey[i] - advEy - FOUR*PI*alpn1*Jy[i] - alpn1*gupKy + chi3o2*curlBy;
+        Ez_rhs[i] = alpn1*trK[i]*Ez[i] - advEz - FOUR*PI*alpn1*Jz[i] - alpn1*gupKz + chi3o2*curlBz;
+
+        /* B-field RHS: similar but with -chi^{3/2} * curl(E) and grad(Kphi) */
+        const double ExL = pgxx*Ex[i] + pgxy*Ey[i] + pgxz*Ez[i];
+        const double EyL = pgxy*Ex[i] + pgyy*Ey[i] + pgyz*Ez[i];
+        const double EzL = pgxz*Ex[i] + pgyz*Ey[i] + pgzz*Ez[i];
+
+        const double aEx = alpn1*ExL, aEy = alpn1*EyL, aEz = alpn1*EzL;
+        const double curlEx = (aEz*Lapy[i] + alpn1*(pgxz*Exy[i]+pgyz*Eyy[i]+pgzz*Ezy[i]) + alpn1*(Ex[i]*gxzy[i]+Ey[i]*gyzy[i]+Ez[i]*gzzy[i]))
+                            - (aEy*Lapz[i] + alpn1*(pgxy*Exz[i]+pgyy*Eyz[i]+pgyz*Ezz[i]) + alpn1*(Ex[i]*gxyz[i]+Ey[i]*gyyz[i]+Ez[i]*gyzz[i]));
+        double curlEy = (aEx*Lapz[i] + alpn1*(pgxx*Exz[i]+pgxy*Eyz[i]+pgxz*Ezz[i]) + alpn1*(Ex[i]*gxxz[i]+Ey[i]*gxyz[i]+Ez[i]*gxzz[i]))
+                      - (aEz*Lapx[i] + alpn1*(pgxz*Exx[i]+pgyz*Eyx[i]+pgzz*Ezx[i]) + alpn1*(Ex[i]*gxzx[i]+Ey[i]*gyzx[i]+Ez[i]*gzzx[i]));
+        double curlEz = (aEy*Lapx[i] + alpn1*(pgxy*Exx[i]+pgyy*Eyx[i]+pgyz*Ezx[i]) + alpn1*(Ex[i]*gxyx[i]+Ey[i]*gyyx[i]+Ez[i]*gyzx[i]))
+                      - (aEx*Lapy[i] + alpn1*(pgxx*Exy[i]+pgxy*Eyy[i]+pgxz*Ezy[i]) + alpn1*(Ex[i]*gxxy[i]+Ey[i]*gxyy[i]+Ez[i]*gxzy[i]));
+
+        const double advBx = Bx[i]*betaxx[i] + By[i]*betaxy[i] + Bz[i]*betaxz[i];
+        const double advBy = Bx[i]*betayx[i] + By[i]*betayy[i] + Bz[i]*betayz[i];
+        const double advBz = Bx[i]*betazx[i] + By[i]*betazy[i] + Bz[i]*betazz[i];
+
+        const double gupKphix = upxx*Kphix[i] + upxy*Kphiy[i] + upxz*Kphiz[i];
+        const double gupKphiy = upxy*Kphix[i] + upyy*Kphiy[i] + upyz*Kphiz[i];
+        const double gupKphiz = upxz*Kphix[i] + upyz*Kphiy[i] + upzz*Kphiz[i];
+
+        Bx_rhs[i] = alpn1*trK[i]*Bx[i] - advBx - alpn1*gupKphix - chi3o2*curlEx;
+        By_rhs[i] = alpn1*trK[i]*By[i] - advBy - alpn1*gupKphiy - chi3o2*curlEy;
+        Bz_rhs[i] = alpn1*trK[i]*Bz[i] - advBz - alpn1*gupKphiz - chi3o2*curlEz;
+
+        /* Scalar potential RHS */
+        const double divE = Exx[i] + Eyy[i] + Ezz[i];
+        const double divB = Bxx[i] + Byy[i] + Bzz[i];
+        const double chiCont = F3o2 * ichi * (chix[i]*Ex[i] + chiy[i]*Ey[i] + chiz[i]*Ez[i]);
+        Kpsi_rhs[i] = FOUR*PI*alpn1*qchar[i] - alpn1*kappa*Kpsi[i] - alpn1*(divE - chiCont);
+        Kphi_rhs[i] = -alpn1*kappa*Kphi[i] - alpn1*(divB - F3o2*ichi*(chix[i]*Bx[i] + chiy[i]*By[i] + chiz[i]*Bz[i]));
+
+        /* Stress-energy tensor */
+        const double E2 = pgxx*Ex[i]*Ex[i] + pgyy*Ey[i]*Ey[i] + pgzz*Ez[i]*Ez[i]
+                        + TWO*(pgxy*Ex[i]*Ey[i] + pgxz*Ex[i]*Ez[i] + pgyz*Ey[i]*Ez[i]);
+        const double B2 = pgxx*Bx[i]*Bx[i] + pgyy*By[i]*By[i] + pgzz*Bz[i]*Bz[i]
+                        + TWO*(pgxy*Bx[i]*By[i] + pgxz*Bx[i]*Bz[i] + pgyz*By[i]*Bz[i]);
+        rho[i] = (E2 + B2) / (EIT * PI);
+        const double ichi3o2 = ONE / chi3o2;
+        Sx[i] = (Ey[i]*Bz[i] - Ez[i]*By[i]) * F1o4PI * ichi3o2;
+        Sy[i] = (Ez[i]*Bx[i] - Ex[i]*Bz[i]) * F1o4PI * ichi3o2;
+        Sz[i] = (Ex[i]*By[i] - Ey[i]*Bx[i]) * F1o4PI * ichi3o2;
+        const double lExi = pgxx*Ex[i] + pgxy*Ey[i] + pgxz*Ez[i];
+        const double lEyi = pgxy*Ex[i] + pgyy*Ey[i] + pgyz*Ez[i];
+        const double lEzi = pgxz*Ex[i] + pgyz*Ey[i] + pgzz*Ez[i];
+        const double lBxi = pgxx*Bx[i] + pgxy*By[i] + pgxz*Bz[i];
+        const double lByi = pgxy*Bx[i] + pgyy*By[i] + pgyz*Bz[i];
+        const double lBzi = pgxz*Bx[i] + pgyz*By[i] + pgzz*Bz[i];
+        Sxx[i] = rho[i]*pgxx - (lExi*lExi + lBxi*lBxi) * F1o4PI;
+        Sxy[i] = rho[i]*pgxy - (lExi*lEyi + lBxi*lByi) * F1o4PI;
+        Sxz[i] = rho[i]*pgxz - (lExi*lEzi + lBxi*lBzi) * F1o4PI;
+        Syy[i] = rho[i]*pgyy - (lEyi*lEyi + lByi*lByi) * F1o4PI;
+        Syz[i] = rho[i]*pgyz - (lEyi*lEzi + lByi*lBzi) * F1o4PI;
+        Szz[i] = rho[i]*pgzz - (lEzi*lEzi + lBzi*lBzi) * F1o4PI;
+    }
+
+    /* ==== 3. Call BSSN RHS with EM stress-energy ==== */
+    gont = f_compute_rhs_bssn(ex, T, X, Y, Z,
+        chi, trK, dxx, gxy, gxz, dyy, gyz, dzz,
+        Axx, Axy, Axz, Ayy, Ayz, Azz,
+        Gamx, Gamy, Gamz, Lap, betax, betay, betaz, dtSfx, dtSfy, dtSfz,
+        chi_rhs, trK_rhs,
+        gxx_rhs, gxy_rhs, gxz_rhs, gyy_rhs, gyz_rhs, gzz_rhs,
+        Axx_rhs, Axy_rhs, Axz_rhs, Ayy_rhs, Ayz_rhs, Azz_rhs,
+        Gamx_rhs, Gamy_rhs, Gamz_rhs, Lap_rhs, betax_rhs, betay_rhs, betaz_rhs,
+        dtSfx_rhs, dtSfy_rhs, dtSfz_rhs,
+        rho, Sx, Sy, Sz, Sxx, Sxy, Sxz, Syy, Syz, Szz,
+        Gamxxx, Gamxxy, Gamxxz, Gamxyy, Gamxyz, Gamxzz,
+        Gamyxx, Gamyxy, Gamyxz, Gamyyy, Gamyyz, Gamyzz,
+        Gamzxx, Gamzxy, Gamzxz, Gamzyy, Gamzyz, Gamzzz,
+        Rxx, Rxy, Rxz, Ryy, Ryz, Rzz,
+        ham_Res, movx_Res, movy_Res, movz_Res,
+        Gmx_Res, Gmy_Res, Gmz_Res,
+        Symmetry, Lev, eps, co);
+    if (!gont) {
+
+    /* ==== 4. Advection terms for EM fields ==== */
+    lopsided(ex, X, Y, Z, Kpsi, Kpsi_rhs, betax, betay, betaz, Symmetry, SSS);
+    lopsided(ex, X, Y, Z, Kphi, Kphi_rhs, betax, betay, betaz, Symmetry, SSS);
+    lopsided(ex, X, Y, Z, Ex,   Ex_rhs,   betax, betay, betaz, Symmetry, ASS);
+    lopsided(ex, X, Y, Z, Ey,   Ey_rhs,   betax, betay, betaz, Symmetry, SAS);
+    lopsided(ex, X, Y, Z, Ez,   Ez_rhs,   betax, betay, betaz, Symmetry, SSA);
+    lopsided(ex, X, Y, Z, Bx,   Bx_rhs,   betax, betay, betaz, Symmetry, SAA);
+    lopsided(ex, X, Y, Z, By,   By_rhs,   betax, betay, betaz, Symmetry, ASA);
+    lopsided(ex, X, Y, Z, Bz,   Bz_rhs,   betax, betay, betaz, Symmetry, AAS);
+
+    /* ==== 5. KO dissipation for EM fields ==== */
+    if (eps > ZEO) {
+        kodis(ex, X, Y, Z, Kpsi, Kpsi_rhs, SSS, Symmetry, eps);
+        kodis(ex, X, Y, Z, Kphi, Kphi_rhs, SSS, Symmetry, eps);
+        kodis(ex, X, Y, Z, Ex,   Ex_rhs,   ASS, Symmetry, eps);
+        kodis(ex, X, Y, Z, Ey,   Ey_rhs,   SAS, Symmetry, eps);
+        kodis(ex, X, Y, Z, Ez,   Ez_rhs,   SSA, Symmetry, eps);
+        kodis(ex, X, Y, Z, Bx,   Bx_rhs,   SAA, Symmetry, eps);
+        kodis(ex, X, Y, Z, By,   By_rhs,   ASA, Symmetry, eps);
+        kodis(ex, X, Y, Z, Bz,   Bz_rhs,   AAS, Symmetry, eps);
+    }
+
+    /* ==== 6. NaN check ==== */
+        for (int i = 0; i < all; ++i) {
+            if (!isfinite(Ex_rhs[i]+Ey_rhs[i]+Ez_rhs[i]+Bx_rhs[i]+By_rhs[i]+Bz_rhs[i]+Kpsi_rhs[i]+Kphi_rhs[i])) {
+                gont = 1; break;
+            }
+        }
+        } /* inner if (!gont) */
+    } /* outer if (!gont) */
+
+    free(chix);free(chiy);free(chiz);
+    free(Exx);free(Exy);free(Exz);free(Eyx);free(Eyy);free(Eyz);free(Ezx);free(Ezy);free(Ezz);
+    free(Bxx);free(Bxy);free(Bxz);free(Byx);free(Byy);free(Byz);free(Bzx);free(Bzy);free(Bzz);
+    free(Kpsix);free(Kpsiy);free(Kpsiz);
+    free(Kphix);free(Kphiy);free(Kphiz);
+    free(Lapx);free(Lapy);free(Lapz);
+    free(betaxx);free(betaxy);free(betaxz);free(betayx);free(betayy);free(betayz);free(betazx);free(betazy);free(betazz);
+    free(gxxx);free(gxxy);free(gxxz);free(gxyx);free(gxyy);free(gxyz);free(gxzx);free(gxzy);free(gxzz);
+    free(gyyx);free(gyyy);free(gyyz);free(gyzx);free(gyzy);free(gyzz);free(gzzx);free(gzzy);free(gzzz);
+    free(gupxx);free(gupxy);free(gupxz);free(gupyy);free(gupyz);free(gupzz);
+    return gont;
+}
--- a/AMSS_NCKU_source/bssn_escalar_rhs_c.C
+++ b/AMSS_NCKU_source/bssn_escalar_rhs_c.C
@@ -0,0 +1,169 @@
+#include "macrodef.h"
+#include "bssn_rhs.h"
+#include "share_func.h"
+#include "tool.h"
+#include <vector>
+
+namespace
+{
+    // Reuse the temporary workspace across block calls to avoid repeated heap churn
+    // in the EScalar wrapper. MPI ranks execute this path sequentially, so a single
+    // process-local buffer is sufficient here.
+    std::vector<double> g_escalar_tmp_store;
+}
+
+#ifdef fortran1
+#define f_frpotential frpotential
+#endif
+#ifdef fortran2
+#define f_frpotential FRPOTENTIAL
+#endif
+#ifdef fortran3
+#define f_frpotential frpotential_
+#endif
+
+extern "C"
+{
+    void f_frpotential(int *, double *, double *, double *);
+}
+
+int f_compute_rhs_bssn_escalar_c(int *ex, double &T,
+                                 double *X, double *Y, double *Z,
+                                 double *chi, double *trK,
+                                 double *dxx, double *gxy, double *gxz, double *dyy, double *gyz, double *dzz,
+                                 double *Axx, double *Axy, double *Axz, double *Ayy, double *Ayz, double *Azz,
+                                 double *Gamx, double *Gamy, double *Gamz,
+                                 double *Lap, double *betax, double *betay, double *betaz,
+                                 double *dtSfx, double *dtSfy, double *dtSfz,
+                                 double *Sphi, double *Spi,
+                                 double *chi_rhs, double *trK_rhs,
+                                 double *gxx_rhs, double *gxy_rhs, double *gxz_rhs, double *gyy_rhs, double *gyz_rhs, double *gzz_rhs,
+                                 double *Axx_rhs, double *Axy_rhs, double *Axz_rhs, double *Ayy_rhs, double *Ayz_rhs, double *Azz_rhs,
+                                 double *Gamx_rhs, double *Gamy_rhs, double *Gamz_rhs,
+                                 double *Lap_rhs, double *betax_rhs, double *betay_rhs, double *betaz_rhs,
+                                 double *dtSfx_rhs, double *dtSfy_rhs, double *dtSfz_rhs,
+                                 double *Sphi_rhs, double *Spi_rhs,
+                                 double *rho, double *Sx, double *Sy, double *Sz,
+                                 double *Sxx, double *Sxy, double *Sxz, double *Syy, double *Syz, double *Szz,
+                                 double *Gamxxx, double *Gamxxy, double *Gamxxz, double *Gamxyy, double *Gamxyz, double *Gamxzz,
+                                 double *Gamyxx, double *Gamyxy, double *Gamyxz, double *Gamyyy, double *Gamyyz, double *Gamyzz,
+                                 double *Gamzxx, double *Gamzxy, double *Gamzxz, double *Gamzyy, double *Gamzyz, double *Gamzzz,
+                                 double *Rxx, double *Rxy, double *Rxz, double *Ryy, double *Ryz, double *Rzz,
+                                 double *ham_Res, double *movx_Res, double *movy_Res, double *movz_Res,
+                                 double *Gmx_Res, double *Gmy_Res, double *Gmz_Res,
+                                 int &Symmetry, int &Lev, double &eps, int &co)
+{
+    const int nx = ex[0], ny = ex[1], nz = ex[2];
+    const int all = nx * ny * nz;
+
+    const size_t workspace_size = size_t(all) * 17;
+    if (g_escalar_tmp_store.size() < workspace_size)
+        g_escalar_tmp_store.resize(workspace_size);
+
+    double *tmp_ptr = g_escalar_tmp_store.data();
+    auto alloc_tmp = [&](int n = 1) -> double *
+    {
+        double *ptr = tmp_ptr;
+        tmp_ptr += size_t(all) * n;
+        return ptr;
+    };
+
+    double *chix = alloc_tmp(), *chiy = alloc_tmp(), *chiz = alloc_tmp();
+    double *Kx = alloc_tmp(), *Ky = alloc_tmp(), *Kz = alloc_tmp();
+    double *fxx = alloc_tmp(), *fxy = alloc_tmp(), *fxz = alloc_tmp();
+    double *fyy = alloc_tmp(), *fyz = alloc_tmp(), *fzz = alloc_tmp();
+    double *Lapx = alloc_tmp(), *Lapy = alloc_tmp(), *Lapz = alloc_tmp();
+    double *V = alloc_tmp(), *dVdSphi = alloc_tmp();
+
+    const double ZEO = 0.0, ONE = 1.0, TWO = 2.0, HALF = 0.5;
+    const double SSS[3] = {1.0, 1.0, 1.0};
+
+    fderivs(ex, chi, chix, chiy, chiz, X, Y, Z, 1.0, 1.0, 1.0, Symmetry, Lev);
+    fderivs(ex, Lap, Lapx, Lapy, Lapz, X, Y, Z, 1.0, 1.0, 1.0, Symmetry, Lev);
+    fderivs(ex, Sphi, Kx, Ky, Kz, X, Y, Z, 1.0, 1.0, 1.0, Symmetry, Lev);
+    fdderivs(ex, Sphi, fxx, fxy, fxz, fyy, fyz, fzz, X, Y, Z, 1.0, 1.0, 1.0, Symmetry, Lev);
+
+    f_frpotential(ex, Sphi, V, dVdSphi);
+
+    for (int i = 0; i < all; ++i)
+    {
+        const double alpn1 = Lap[i] + ONE;
+        const double chin1 = chi[i] + ONE;
+        const double gxx = dxx[i] + ONE;
+        const double gyy = dyy[i] + ONE;
+        const double gzz = dzz[i] + ONE;
+        const double det = gxx * gyy * gzz + gxy[i] * gyz[i] * gxz[i] + gxz[i] * gxy[i] * gyz[i]
+                         - gxz[i] * gyy * gxz[i] - gxy[i] * gxy[i] * gzz - gxx * gyz[i] * gyz[i];
+        const double gupxx = (gyy * gzz - gyz[i] * gyz[i]) / det;
+        const double gupxy = -(gxy[i] * gzz - gyz[i] * gxz[i]) / det;
+        const double gupxz = (gxy[i] * gyz[i] - gyy * gxz[i]) / det;
+        const double gupyy = (gxx * gzz - gxz[i] * gxz[i]) / det;
+        const double gupyz = -(gxx * gyz[i] - gxy[i] * gxz[i]) / det;
+        const double gupzz = (gxx * gyy - gxy[i] * gxy[i]) / det;
+
+        Sphi_rhs[i] = alpn1 * Spi[i];
+
+        Spi_rhs[i] = gupxx * fxx[i] + gupyy * fyy[i] + gupzz * fzz[i]
+                   + TWO * (gupxy * fxy[i] + gupxz * fxz[i] + gupyz * fyz[i])
+                   - ((Gamx[i] + (gupxx * chix[i] + gupxy * chiy[i] + gupxz * chiz[i]) / TWO / chin1) * Kx[i]
+                   +  (Gamy[i] + (gupxy * chix[i] + gupyy * chiy[i] + gupyz * chiz[i]) / TWO / chin1) * Ky[i]
+                   +  (Gamz[i] + (gupxz * chix[i] + gupyz * chiy[i] + gupzz * chiz[i]) / TWO / chin1) * Kz[i]);
+
+        Spi_rhs[i] = Spi_rhs[i] * alpn1
+                   + gupxx * Lapx[i] * Kx[i] + gupxy * Lapx[i] * Ky[i] + gupxz * Lapx[i] * Kz[i]
+                   + gupxy * Lapy[i] * Kx[i] + gupyy * Lapy[i] * Ky[i] + gupyz * Lapy[i] * Kz[i]
+                   + gupxz * Lapz[i] * Kx[i] + gupyz * Lapz[i] * Ky[i] + gupzz * Lapz[i] * Kz[i];
+
+        Spi_rhs[i] = Spi_rhs[i] * chin1 + alpn1 * (trK[i] * Spi[i] - dVdSphi[i]);
+
+        rho[i] = chin1 * ((gupxx * Kx[i] * Kx[i] + gupyy * Ky[i] * Ky[i] + gupzz * Kz[i] * Kz[i]) * HALF
+               + gupxy * Kx[i] * Ky[i] + gupxz * Kx[i] * Kz[i] + gupyz * Ky[i] * Kz[i])
+               + Spi[i] * Spi[i] * HALF + V[i];
+        Sx[i] = -Spi[i] * Kx[i];
+        Sy[i] = -Spi[i] * Ky[i];
+        Sz[i] = -Spi[i] * Kz[i];
+
+        const double pressure = (rho[i] - Spi[i] * Spi[i]) / chin1;
+        Sxx[i] = Kx[i] * Kx[i] - pressure * gxx;
+        Sxy[i] = Kx[i] * Ky[i] - pressure * gxy[i];
+        Sxz[i] = Kx[i] * Kz[i] - pressure * gxz[i];
+        Syy[i] = Ky[i] * Ky[i] - pressure * gyy;
+        Syz[i] = Ky[i] * Kz[i] - pressure * gyz[i];
+        Szz[i] = Kz[i] * Kz[i] - pressure * gzz;
+    }
+
+    if (f_compute_rhs_bssn(ex, T, X, Y, Z,
+                           chi, trK,
+                           dxx, gxy, gxz, dyy, gyz, dzz,
+                           Axx, Axy, Axz, Ayy, Ayz, Azz,
+                           Gamx, Gamy, Gamz,
+                           Lap, betax, betay, betaz,
+                           dtSfx, dtSfy, dtSfz,
+                           chi_rhs, trK_rhs,
+                           gxx_rhs, gxy_rhs, gxz_rhs, gyy_rhs, gyz_rhs, gzz_rhs,
+                           Axx_rhs, Axy_rhs, Axz_rhs, Ayy_rhs, Ayz_rhs, Azz_rhs,
+                           Gamx_rhs, Gamy_rhs, Gamz_rhs,
+                           Lap_rhs, betax_rhs, betay_rhs, betaz_rhs,
+                           dtSfx_rhs, dtSfy_rhs, dtSfz_rhs,
+                           rho, Sx, Sy, Sz,
+                           Sxx, Sxy, Sxz, Syy, Syz, Szz,
+                           Gamxxx, Gamxxy, Gamxxz, Gamxyy, Gamxyz, Gamxzz,
+                           Gamyxx, Gamyxy, Gamyxz, Gamyyy, Gamyyz, Gamyzz,
+                           Gamzxx, Gamzxy, Gamzxz, Gamzyy, Gamzyz, Gamzzz,
+                           Rxx, Rxy, Rxz, Ryy, Ryz, Rzz,
+                           ham_Res, movx_Res, movy_Res, movz_Res,
+                           Gmx_Res, Gmy_Res, Gmz_Res,
+                           Symmetry, Lev, eps, co))
+        return 1;
+
+    lopsided_kodis(ex, X, Y, Z, Sphi, Sphi_rhs, betax, betay, betaz, Symmetry, SSS, eps);
+    lopsided_kodis(ex, X, Y, Z, Spi, Spi_rhs, betax, betay, betaz, Symmetry, SSS, eps);
+
+    for (int i = 0; i < all; ++i)
+    {
+        if (Sphi_rhs[i] != Sphi_rhs[i] || Spi_rhs[i] != Spi_rhs[i] || rho[i] != rho[i])
+            return 1;
+    }
+
+    return 0;
+}
--- a/AMSS_NCKU_source/BSSN_GPU/bssn_gpu.cu
+++ b/AMSS_NCKU_source/BSSN_GPU/bssn_gpu.cu
--- a/AMSS_NCKU_source/BSSN_GPU/bssn_gpu.h
+++ b/AMSS_NCKU_source/BSSN_GPU/bssn_gpu.h
--- a/AMSS_NCKU_source/BSSN_GPU/bssn_gpu_class.C
+++ b/AMSS_NCKU_source/BSSN_GPU/bssn_gpu_class.C
--- a/AMSS_NCKU_source/BSSN_GPU/bssn_gpu_class.h
+++ b/AMSS_NCKU_source/BSSN_GPU/bssn_gpu_class.h
--- a/AMSS_NCKU_source/BSSN_GPU/bssn_gpu_rhs_ss.cu
+++ b/AMSS_NCKU_source/BSSN_GPU/bssn_gpu_rhs_ss.cu
--- a/AMSS_NCKU_source/BSSN_GPU/bssn_macro.C
+++ b/AMSS_NCKU_source/BSSN_GPU/bssn_macro.C
--- a/AMSS_NCKU_source/BSSN_GPU/bssn_macro.h
+++ b/AMSS_NCKU_source/BSSN_GPU/bssn_macro.h
--- a/AMSS_NCKU_source/BSSN/bssn_rhs.f90
+++ b/AMSS_NCKU_source/BSSN/bssn_rhs.f90
--- a/AMSS_NCKU_source/BSSN/bssn_rhs.h
+++ b/AMSS_NCKU_source/BSSN/bssn_rhs.h
@@ -67,6 +67,27 @@ extern "C"
                               int &, int &, double &, int &);
 }

+int f_compute_rhs_bssn_escalar_c(int *, double &, double *, double *, double *,                                                      // ex,T,X,Y,Z
+                                 double *, double *,                                                                                 // chi, trK
+                                 double *, double *, double *, double *, double *, double *,                                         // gij
+                                 double *, double *, double *, double *, double *, double *,                                         // Aij
+                                 double *, double *, double *,                                                                       // Gam
+                                 double *, double *, double *, double *, double *, double *, double *,                               // Gauge
+                                 double *, double *,                                                                                 // Sphi, Spi
+                                 double *, double *,                                                                                 // chi, trK
+                                 double *, double *, double *, double *, double *, double *,                                         // gij
+                                 double *, double *, double *, double *, double *, double *,                                         // Aij
+                                 double *, double *, double *,                                                                       // Gam
+                                 double *, double *, double *, double *, double *, double *, double *,                               // Gauge
+                                 double *, double *,                                                                                 // Sphi, Spi
+                                 double *, double *, double *, double *, double *, double *, double *, double *, double *, double *, // stress-energy
+                                 double *, double *, double *, double *, double *, double *,                                         // Christoffel
+                                 double *, double *, double *, double *, double *, double *,                                         // Christoffel
+                                 double *, double *, double *, double *, double *, double *,                                         // Christoffel
+                                 double *, double *, double *, double *, double *, double *,                                         // Ricci
+                                 double *, double *, double *, double *, double *, double *, double *,                               // constraint violation
+                                 int &, int &, double &, int &);
+
 extern "C"
 {
        int f_compute_rhs_bssn_ss(int *, double &, double *, double *, double *,                                                      // ex,T,rho,sigma,R
@@ -241,4 +262,31 @@ extern "C"
                                     double *);
 } // FR_cons

+// BSSN-EM C kernel (replaces empart.f90 + bssn_rhs.f90 for BSSN+Maxwell)
+int f_compute_rhs_bssn_em_c(int *, double &, double *, double *, double *,
+                             double *, double *,
+                             double *, double *, double *, double *, double *, double *,
+                             double *, double *, double *, double *, double *, double *,
+                             double *, double *, double *,
+                             double *, double *, double *, double *, double *, double *, double *,
+                             double *, double *, double *,
+                             double *, double *, double *, double *, double *, double *, double *, double *,
+                             double *, double *, double *,
+                             double *, double *,
+                             double *, double *,
+                             double *, double *, double *, double *, double *, double *,
+                             double *, double *, double *, double *, double *, double *,
+                             double *, double *, double *,
+                             double *, double *, double *, double *, double *, double *, double *,
+                             double *, double *, double *, double *, double *, double *, double *, double *,
+                             double *, double *, double *,
+                             double *, double *, double *, double *,
+                             double *, double *, double *, double *, double *, double *,
+                             double *, double *, double *, double *, double *, double *,
+                             double *, double *, double *, double *, double *, double *,
+                             double *, double *, double *, double *, double *, double *,
+                             double *, double *, double *, double *, double *, double *,
+                             double *, double *, double *, double *, double *, double *,
+                             int &, int &, double &, int &);
+
 #endif /* BSSN_H */
--- a/AMSS_NCKU_source/BSSN/bssn_rhs_c.C
+++ b/AMSS_NCKU_source/BSSN/bssn_rhs_c.C
@@ -1075,6 +1075,10 @@ int f_compute_rhs_bssn(int *ex, double &T,
        }
        #endif

+        #if (GAUGE == 2 || GAUGE == 3 || GAUGE == 4 || GAUGE == 5)
+        fderivs(ex,chi,dtSfx_rhs,dtSfy_rhs,dtSfz_rhs,X,Y,Z,SYM,SYM,SYM,Symmetry,Lev);
+        #endif
+
        for (int i = 0; i < all; i += 1) {
            #if (GAUGE == 0)
            betax_rhs[i] = FF * dtSfx[i];
@@ -1160,11 +1164,17 @@ int f_compute_rhs_bssn(int *ex, double &T,
        lopsided_kodis(ex,X,Y,Z,gyz,gyz_rhs,betax,betay,betaz,Symmetry,SAA,eps);
        lopsided_kodis(ex,X,Y,Z,betaz,betaz_rhs,betax,betay,betaz,Symmetry,SSA,eps);
        lopsided_kodis(ex,X,Y,Z,dzz,gzz_rhs,betax,betay,betaz,Symmetry,SSS,eps);
+        #if (GAUGE == 0 || GAUGE == 2 || GAUGE == 3 || GAUGE == 6 || GAUGE == 7)
        lopsided_kodis(ex,X,Y,Z,dtSfx,dtSfx_rhs,betax,betay,betaz,Symmetry,ASS,eps);
+        #endif
        lopsided_kodis(ex,X,Y,Z,Axx,Axx_rhs,betax,betay,betaz,Symmetry,SSS,eps);
+        #if (GAUGE == 0 || GAUGE == 2 || GAUGE == 3 || GAUGE == 6 || GAUGE == 7)
        lopsided_kodis(ex,X,Y,Z,dtSfy,dtSfy_rhs,betax,betay,betaz,Symmetry,SAS,eps);
+        #endif
        lopsided_kodis(ex,X,Y,Z,Axy,Axy_rhs,betax,betay,betaz,Symmetry,AAS,eps);
+        #if (GAUGE == 0 || GAUGE == 2 || GAUGE == 3 || GAUGE == 6 || GAUGE == 7)
        lopsided_kodis(ex,X,Y,Z,dtSfz,dtSfz_rhs,betax,betay,betaz,Symmetry,SSA,eps);
+        #endif
        lopsided_kodis(ex,X,Y,Z,Axz,Axz_rhs,betax,betay,betaz,Symmetry,ASA,eps);
        lopsided_kodis(ex,X,Y,Z,Ayy,Ayy_rhs,betax,betay,betaz,Symmetry,SSS,eps);
        lopsided_kodis(ex,X,Y,Z,Ayz,Ayz_rhs,betax,betay,betaz,Symmetry,SAA,eps);
--- a/AMSS_NCKU_source/BSSN/bssn_rhs_ss.f90
+++ b/AMSS_NCKU_source/BSSN/bssn_rhs_ss.f90
--- a/AMSS_NCKU_source/BSSN_GPU/bssn_step_gpu.C
+++ b/AMSS_NCKU_source/BSSN_GPU/bssn_step_gpu.C
--- a/AMSS_NCKU_source/AHF_Direct/cctk.h
+++ b/AMSS_NCKU_source/AHF_Direct/cctk.h
--- a/AMSS_NCKU_source/AHF_Direct/cctk_Config.h
+++ b/AMSS_NCKU_source/AHF_Direct/cctk_Config.h
--- a/AMSS_NCKU_source/AHF_Direct/cctk_Constants.h
+++ b/AMSS_NCKU_source/AHF_Direct/cctk_Constants.h
--- a/AMSS_NCKU_source/AHF_Direct/cctk_Types.h
+++ b/AMSS_NCKU_source/AHF_Direct/cctk_Types.h
--- a/AMSS_NCKU_source/cgh/cgh.C
+++ b/AMSS_NCKU_source/cgh/cgh.C
--- a/AMSS_NCKU_source/cgh/cgh.h
+++ b/AMSS_NCKU_source/cgh/cgh.h
--- a/AMSS_NCKU_source/Check_Point/checkpoint.C
+++ b/AMSS_NCKU_source/Check_Point/checkpoint.C
--- a/AMSS_NCKU_source/Check_Point/checkpoint.h
+++ b/AMSS_NCKU_source/Check_Point/checkpoint.h
--- a/AMSS_NCKU_source/AHF_Direct/config.h
+++ b/AMSS_NCKU_source/AHF_Direct/config.h
--- a/AMSS_NCKU_source/AHF_Direct/coords.C
+++ b/AMSS_NCKU_source/AHF_Direct/coords.C
--- a/AMSS_NCKU_source/AHF_Direct/coords.h
+++ b/AMSS_NCKU_source/AHF_Direct/coords.h
--- a/AMSS_NCKU_source/Z4C/cpbc.f90
+++ b/AMSS_NCKU_source/Z4C/cpbc.f90
--- a/AMSS_NCKU_source/Z4C/cpbc.h
+++ b/AMSS_NCKU_source/Z4C/cpbc.h
--- a/AMSS_NCKU_source/Z4C/cpbc_util.C
+++ b/AMSS_NCKU_source/Z4C/cpbc_util.C
--- a/AMSS_NCKU_source/AHF_Direct/cpm_map.C
+++ b/AMSS_NCKU_source/AHF_Direct/cpm_map.C
--- a/AMSS_NCKU_source/AHF_Direct/cpm_map.h
+++ b/AMSS_NCKU_source/AHF_Direct/cpm_map.h
--- a/AMSS_NCKU_source/Derivative/derivatives.h
+++ b/AMSS_NCKU_source/Derivative/derivatives.h
--- a/AMSS_NCKU_source/Derivative/diff_new.f90
+++ b/AMSS_NCKU_source/Derivative/diff_new.f90
--- a/AMSS_NCKU_source/Derivative/diff_new_sh.f90
+++ b/AMSS_NCKU_source/Derivative/diff_new_sh.f90
--- a/AMSS_NCKU_source/Derivative/diff_newwb.f90
+++ b/AMSS_NCKU_source/Derivative/diff_newwb.f90
--- a/AMSS_NCKU_source/AHF_Direct/driver.h
+++ b/AMSS_NCKU_source/AHF_Direct/driver.h
--- a/AMSS_NCKU_source/BSSN/empart.f90
+++ b/AMSS_NCKU_source/BSSN/empart.f90
--- a/AMSS_NCKU_source/BSSN/empart.h
+++ b/AMSS_NCKU_source/BSSN/empart.h
--- a/Show More
+++ b/Show More
Author	SHA1	Message	Date
CGH0S7	a6104724e4	Fix BSSN C gauge RHS parity	2026-05-15 18:02:03 +08:00
CGH0S7	52bb8ccf12	Fix lower-order C lopsided boundary fallbacks	2026-05-14 21:35:25 +08:00
CGH0S7	02c69f6e34	Fix eighth-order C derivative and lopsided stencils	2026-05-14 20:32:53 +08:00
CGH0S7	359540af4b	Fix C derivative ghost-buffer indexing across FD orders	2026-05-14 16:00:11 +08:00
CGH0S7	a628b8e2ff	Fix fourth-order C lopsided and KO stencil indexing	2026-05-14 15:19:36 +08:00
CGH0S7	c6e1a125b8	Fix shell C kernel symbol names for Fortran linkage (fderivs_sh_ etc.) Shell C functions must export Fortran-compatible symbols with trailing underscore so bssn_rhs_ss.f90 and getnp4.f90 can link when WithShell is active and USE_CXX_SHELL_KERNELS=1 replaces Fortran diff_new_sh.o. Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>	2026-05-14 14:09:16 +08:00
CGH0S7	547c62a116	Add full GAUGE 2-7 support to Z4C C RHS kernel (z4c_rhs_c.C) Previously only GAUGE 0 and 1 were supported with a compile error for 2-7. Now supports all 8 gauge choices matching BSSN Fortran formulas: - GAUGE 2: variable-eta gamma-driver, chi-sqrt denominator - GAUGE 3: variable-eta gamma-driver, chi-linear denominator - GAUGE 4: first-order variable-eta, chi-sqrt denominator - GAUGE 5: first-order variable-eta, chi-linear denominator - GAUGE 6: Jason's rational position-dependent damping - GAUGE 7: Jason's exponential position-dependent damping Also fixes dtSf advection/dissipation guards for gauges where dtSf is active. Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>	2026-05-14 13:00:07 +08:00
CGH0S7	3e55068548	Add C kernel for BSSN-EM (Maxwell/electromagnetic field) RHS computation New bssn_em_rhs_c.C computes EM field RHS (E,B,Kpsi,Kphi) and stress-energy tensor, then calls the C BSSN RHS kernel with source terms. Replaces empart.f90 when USE_CXX_EM_KERNEL=1. Supports all ghost_width orders via existing derivative kernels. Controlled by USE_CXX_EM_KERNEL switch (default 0, experimental). Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>	2026-05-14 11:25:08 +08:00
CGH0S7	4a413d669d	Add C implementations of shell-patch derivative kernels (WithShell support) New files provide C equivalents of Fortran diff_new_sh.f90 and kodiss_sh.f90: - fderivs_sh_c.C: first derivatives in shell (rho, sigma, R) coords - fdderivs_sh_c.C: second derivatives in shell coords - fderivs_shc_c.C: shell first derivs + chain rule to Cartesian - fdderivs_shc_c.C: shell second derivs + chain rule to Cartesian - kodiss_sh_c.C: Kreiss-Oliger dissipation on shell patches Also add symmetry_stbd() C implementation and shell fh indexing to share_func.h. Controlled by USE_CXX_SHELL_KERNELS switch (default 0, experimental). Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>	2026-05-14 02:52:48 +08:00
CGH0S7	9e51793499	Add full FD order support (2nd/4th/6th/8th) to C derivative kernels via ghost_width dispatch Wrap each C kernel in #if (ghost_width == N) blocks matching Fortran stencil coefficients from diff_new.f90, kodiss.f90, and lopsidediff.f90. Add fast-path indexing for ord=1,4,5 in share_func.h. Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>	2026-05-14 02:27:21 +08:00
CGH0S7	66bce8c42d	Add plot-only restart script to skip recomputation when plotting is interrupted Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>	2026-05-12 14:56:38 +08:00
CGH0S7	32529f09a6	Use static OpenMP schedule in ShellPatch::setupintintstuff Static scheduling has lower overhead than guided for uniform workloads (grid points all have equal computational cost). Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>	2026-05-10 20:05:46 +08:00
CGH0S7	fae4093863	Add thread-safe ShellPatch::setupintintstuff with OpenMP Split prolongpointstru into search-only (prolongpointstru_search) and append-only (prolongpointstru_append) functions. The search is read-only and thread-safe; each thread builds private linked lists via prolongpointstru_append, merged after the parallel loop. This eliminates critical-section contention and delivers ~2.2x speedup: setupintintstuff: 511s -> 252s, total init: 592s -> 267s. Also add -qopenmp to ShellPatch.o compilation via makefile override rule and <omp.h> include with _OPENMP guards + fallback stubs. Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>	2026-05-10 20:05:46 +08:00
CGH0S7	26f5add3fb	Accelerate Shell-Patch CPU interpolation	2026-05-08 14:30:15 +08:00
CGH0S7	f669180572	Merge branch 'cjy-vitality' # Conflicts: # AMSS_NCKU_source/bssn_class.C # AMSS_NCKU_source/makefile.inc	2026-04-28 16:55:47 +08:00
CGH0S7	0db537479b	Fix BSSN build config selection	2026-04-27 18:42:34 +08:00
CGH0S7	1f3fd264c0	Add missing setup_transfer_caches() to bssnEM_class::Initialize() bssnEScalar_class::Initialize() already calls setup_transfer_caches(), but bssnEM_class::Initialize() did not. When USE_TRANSFER_CACHE=1, the sync_cache pointers remain NULL, causing SIGSEGV in wrapper methods that dereference sync_cache_*[lev]. Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>	2026-04-27 15:32:27 +08:00
CGH0S7	442674cedc	Fix direct sync_cache accesses bypassing use_transfer_cache() guard Seven Parallel::_cached() calls in RestrictProlong and RestrictProlong_aux were missed during the transfer-cache refactoring (commits 9cd3741..8d28c29). When BSSN_USE_TRANSFER_CACHE=0, all sync_cache pointers are NULL, so dereferencing sync_cache_[lev] triggers SIGSEGV. Replace them with the equivalent wrapper methods (sync_evolution, restrict_evolution, outbdlow2hi_evolution) that check use_transfer_cache() and fall back to uncached direct calls. Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>	2026-04-27 14:50:59 +08:00
ianchb	a13b6901f6	Fix Z4C C++ gauge damping ordering	2026-04-27 12:00:47 +08:00
ianchb	7e67feddbf	Add C++ Z4C RHS path and port some BSSN optimizations	2026-04-25 08:03:19 +08:00
CGH0S7	8d28c29a91	Default to safe BSSN-EScalar C kernel	2026-04-25 02:02:01 +08:00
CGH0S7	0cf58176d9	Add safe BSSN-EScalar kernel and transfer toggles	2026-04-25 01:41:55 +08:00
CGH0S7	0f1d0de1e7	Stabilize and wire BSSN-EScalar C path	2026-04-25 00:08:35 +08:00
ianchb	c60bc03664	Also disable cached sync for Z4C	2026-04-24 21:06:13 +08:00
CGH0S7	b57d80ca61	Disable cached sync for BSSN-EScalar	2026-04-24 01:58:57 +08:00
CGH0S7	9cd3741a90	Fallback BSSN-EScalar restrict/prolong path	2026-04-24 01:37:54 +08:00