cjy-dystopia #3

Merged
gh0s7 merged 13 commits from cjy-dystopia into main 2026-03-02 21:36:26 +08:00

13 Commits

Author SHA1 Message Date
5070134857 perf(transfer_cached): 将 per-call new/delete 的 req_node/req_is_recv/completed 数组移入 SyncCache 复用
避免 transfer_cached 每次调用分配释放 3 个临时数组,减少堆操作开销。

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
2026-03-02 21:14:35 +08:00
4012e9d068 perf(RestrictProlong): 用 Restrict_cached/OutBdLow2Hi_cached 替换非缓存版本,Sync_finish 改为渐进式解包
- RestrictProlong/RestrictProlong_aux 中的 Restrict() 和 OutBdLow2Hi() 替换为 _cached 版本,
  复用 gridseg 列表和 MPI 缓冲区,避免每次调用重新分配
- 新增 sync_cache_restrict/sync_cache_outbd 两组 per-level 缓存
- Sync_finish 从 MPI_Waitall 改为 MPI_Waitsome 渐进式解包,降低尾延迟
- AsyncSyncState 扩展 req_node/req_is_recv/pending_recv 字段支持渐进解包

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
2026-03-02 20:48:38 +08:00
b3c367f15b prolong3 改为先算实际 stencil 窗口;只有窗口触及对称边界时才走全域 symmetry_bd,否则只复制必需窗口。restrict3 同样改成窗口判定,无触边时仅填 ii/jj/kk 必需窗口。 2026-03-02 17:38:56 +08:00
e73911f292 perf(restrict3): shrink X-pass ii sweep to required overlap window
- compute fi_min/fi_max from output i-range and derive ii_lo/ii_hi
 - replace full ii sweep (-1:extf(1)) with windowed sweep in Z/Y precompute passes
 - keep stencil math unchanged; add bounds sanity check for ii window
2026-03-02 17:37:13 +08:00
7543d3e8c7 perf(MPatch): 用空间 bin 索引加速 Interp_Points 的 block 归属查找
- 为 Patch::Interp_Points 三个重载引入 BlockBinIndex(候选筛选 + 全扫回退)
  - 保持原 point-in-block 判定与后续插值/通信流程不变
  - 将逐点线性扫块从 O(N_points*N_blocks) 降为近似 O(N_points*k)
  - 测试:bin 上限如果太大,会引入不必要的索引构建开销。将 bins 上限设为 16。

Co-authored-by: gpt-5.3-codex
2026-03-02 17:37:13 +08:00
42c69fab24 refactor(Parallel): streamline MPI communication by consolidating request handling and memory management 2026-03-02 17:37:13 +08:00
95220a05c8 optimize fdderivs core-region branch elimination for ghost_width=3 2026-03-02 17:33:26 +08:00
466b084a58 fix prolong/restrict index bounds after cherry-pick 12e1f63 2026-03-02 13:59:47 +08:00
61ccef9f97 prolong3: 减少Z-pass 冗余计算 2026-03-02 13:58:52 +08:00
e11363e06e Optimize fdderivs: skip redundant 2nd-order work in 4th-order overlap 2026-03-02 03:21:21 +08:00
f70e90f694 prolong3:提升cache命中率 2026-03-02 03:05:35 +08:00
jaunatisblue
75dd5353b0 修改prolong 2026-03-02 02:25:25 +08:00
jaunatisblue
23a82d063b 对prolong3做访存优化 2026-03-02 02:25:25 +08:00