Fix CUDA AMR symmetry drift

2026-05-17 23:46:15 +08:00
parent a0b43bae04
commit f2264989d8
5 changed files with 37 additions and 18 deletions
--- a/AMSS_NCKU_source/bssn_rhs_cuda.cu
+++ b/AMSS_NCKU_source/bssn_rhs_cuda.cu
@@ -7693,15 +7693,15 @@ __device__ __forceinline__ double load_comm_state_cell_sym(const double * __rest
 {
    double s = 1.0;
    if (x < 0) {
-        x = -x;
+        x = -x - 1;
        s *= d_comm_state_soa[3 * state_index + 0];
    }
    if (y < 0) {
-        y = -y;
+        y = -y - 1;
        s *= d_comm_state_soa[3 * state_index + 1];
    }
    if (z < 0) {
-        z = -z;
+        z = -z - 1;
        s *= d_comm_state_soa[3 * state_index + 2];
    }
    const int src = x + y * nx + z * nx * ny;