尝试划分4block但是效果不好，转为研究访存

AMSS_NCKU_source/MPatch.C

@@ -617,6 +617,7 @@ void Patch::Interp_Points(MyList<var> *VarList,
   {
     if (owner_rank[j] < 0 && myrank == 0)
     {
+      cout<<owner_rank[j-1]<<endl;
       cout << "ERROR: Patch::Interp_Points fails to find point (";
       for (int d = 0; d < dim; d++)
       {

AMSS_NCKU_source/Parallel.C

@@ -710,16 +710,34 @@ MyList<Block> *Parallel::distribute_hard(MyList<Patch> *PatchLIST, int cpusize,
             int kb2 = (PP->shape[2] * k) / nxyz[2];
             int kb5 = (PP->shape[2] * (k + 1)) / nxyz[2] - 1;
 
-            int r_l, r_r;
+            int r_1, r_2, r_3, r_4;
-            if(current_block_id == 27)      { r_l = 26; r_r = 27; }
-            else if(current_block_id == 28) { r_l = 28; r_r = 29; }
-            else if(current_block_id == 35) { r_l = 34; r_r = 35; }
-            else                            { r_l = 36; r_r = 37; }
             Block * split_first_block = nullptr;
             Block * split_last_block = nullptr; 
-            // 拆分逻辑：该函数应更新类成员变量 split_first_block 和 split_last_block
+            if(current_block_id == 27)
+            {
+              r_1 = 24; r_2 = 25; r_3 = 26; r_4 = 27; 
                splitHotspotBlock(BlL, dim, ib0, ib3, jb1, jb4, kb2, kb5, 
-                              PP, r_l, r_r, ingfsi, fngfsi, periodic,split_first_block,split_last_block);
+                                PP, r_1,r_2,r_3, r_4, ingfsi, fngfsi, periodic,split_first_block,split_last_block);   
+            }
+
+            else if(current_block_id == 28) 
+            { 
+              r_1 = 28; r_2 = 29;
+              splitHotspotBlock(BlL, dim, ib0, ib3, jb1, jb4, kb2, kb5, 
+                              PP, r_1, r_2, ingfsi, fngfsi, periodic,split_first_block,split_last_block);
+            }
+            else if(current_block_id == 35) 
+            { 
+              r_1 = 34; r_2 = 35; 
+              splitHotspotBlock(BlL, dim, ib0, ib3, jb1, jb4, kb2, kb5, 
+                              PP, r_1, r_2, ingfsi, fngfsi, periodic,split_first_block,split_last_block);
+            }
+            else
+            { 
+              r_1 = 36; r_2 = 37; r_3 = 38; r_4 = 39;
+              splitHotspotBlock(BlL, dim, ib0, ib3, jb1, jb4, kb2, kb5, 
+                                PP, r_1,r_2,r_3, r_4, ingfsi, fngfsi, periodic,split_first_block,split_last_block);   
+            }
         
             current_ng_start = split_first_block;
             ng = split_last_block; 
@@ -823,10 +841,104 @@ MyList<Block> *Parallel::distribute_hard(MyList<Patch> *PatchLIST, int cpusize,
   return BlL;
 }
 
+
+
+ /**
+ * @brief 将当前 Block 几何4等分并存入列表
+ */
+
+
+Block* Parallel::splitHotspotBlock(MyList<Block>* &BlL, int _dim, 
+                                 int ib0_orig, int ib3_orig, 
+                                 int jb1_orig, int jb4_orig, 
+                                 int kb2_orig, int kb5_orig, 
+                                 Patch* PP, int r_1, int r_2, int r_3, int r_4,
+                                 int ingfsi, int fngfsi, bool periodic,
+                                 Block* &split_first_block, Block* &split_last_block)
+{
+    // 1. 计算四分索引区间
+    // 计算 X 方向的总网格数
+    int total_len = ib3_orig - ib0_orig + 1;
+    
+    // 计算三个切分点，确保覆盖 [ib0_orig, ib3_orig]
+    // 段 1: [ib0_orig, m1]
+    // 段 2: [m1 + 1, m2]
+    // 段 3: [m2 + 1, m3]
+    // 段 4: [m3 + 1, ib3_orig]
+    int m1 = ib0_orig + total_len / 4 - 1;
+    int m2 = ib0_orig + total_len / 2 - 1;
+    int m3 = ib0_orig + (3 * total_len) / 4 - 1;
+
+    int indices[4][6] = {
+        {ib0_orig, jb1_orig, kb2_orig, m1,       jb4_orig, kb5_orig}, // 子块 1
+        {m1 + 1,   jb1_orig, kb2_orig, m2,       jb4_orig, kb5_orig}, // 子块 2
+        {m2 + 1,   jb1_orig, kb2_orig, m3,       jb4_orig, kb5_orig}, // 子块 3
+        {m3 + 1,   jb1_orig, kb2_orig, ib3_orig, jb4_orig, kb5_orig}  // 子块 4
+    };
+
+    int target_ranks[4] = {r_1, r_2, r_3, r_4};
+
+    // 2. 内部处理逻辑 (保持原有的 Ghost 扩张和物理坐标转换)
+    auto createSubBlock = [&](int* ib_raw, int target_rank) {
+        int ib_final[6];
+        int sh_here[3];
+        double bb_here[6], dd;
+
+        // --- 逻辑 A: Ghost 扩张 ---
+        if (periodic) {
+            ib_final[0] = ib_raw[0] - ghost_width;
+            ib_final[3] = ib_raw[3] + ghost_width;
+            ib_final[1] = ib_raw[1] - ghost_width;
+            ib_final[4] = ib_raw[4] + ghost_width;
+            ib_final[2] = ib_raw[2] - ghost_width;
+            ib_final[5] = ib_raw[5] + ghost_width;
+        } else {
+            ib_final[0] = Mymax(0, ib_raw[0] - ghost_width);
+            ib_final[3] = Mymin(PP->shape[0] - 1, ib_raw[3] + ghost_width);
+            ib_final[1] = Mymax(0, ib_raw[1] - ghost_width);
+            ib_final[4] = Mymin(PP->shape[1] - 1, ib_raw[4] + ghost_width);
+            ib_final[2] = Mymax(0, ib_raw[2] - ghost_width);
+            ib_final[5] = Mymin(PP->shape[2] - 1, ib_raw[5] + ghost_width);
+        }
+
+        sh_here[0] = ib_final[3] - ib_final[0] + 1;
+        sh_here[1] = ib_final[4] - ib_final[1] + 1;
+        sh_here[2] = ib_final[5] - ib_final[2] + 1;
+
+        // --- 逻辑 B: 物理坐标计算 ---
+        dd = (PP->bbox[3] - PP->bbox[0]) / PP->shape[0];
+        bb_here[0] = PP->bbox[0] + ib_final[0] * dd;
+        bb_here[3] = PP->bbox[0] + (ib_final[3] + 1) * dd;
+
+        dd = (PP->bbox[4] - PP->bbox[1]) / PP->shape[1];
+        bb_here[1] = PP->bbox[1] + ib_final[1] * dd;
+        bb_here[4] = PP->bbox[1] + (ib_final[4] + 1) * dd;
+
+        dd = (PP->bbox[5] - PP->bbox[2]) / PP->shape[2];
+        bb_here[2] = PP->bbox[2] + ib_final[2] * dd;
+        bb_here[5] = PP->bbox[2] + (ib_final[5] + 1) * dd;
+
+        Block* Bg = new Block(_dim, sh_here, bb_here, target_rank, ingfsi, fngfsi, PP->lev);
+        
+        if (BlL) BlL->insert(Bg);
+        else     BlL = new MyList<Block>(Bg);
+
+        return Bg;
+    };
+
+    // 3. 执行创建并返回首尾指针
+    split_first_block = createSubBlock(indices[0], target_ranks[0]);
+    createSubBlock(indices[1], target_ranks[1]); // 中间块仅插入 List
+    createSubBlock(indices[2], target_ranks[2]); // 中间块仅插入 List
+    split_last_block  = createSubBlock(indices[3], target_ranks[3]);
+}
+
  /**
  * @brief 将当前 Block 几何二等分并存入列表
  * @param axis 拆分轴：0-x, 1-y, 2-z (建议选最长轴)
  */
+
+
 Block* Parallel::splitHotspotBlock(MyList<Block>* &BlL, int _dim, 
                                  int ib0_orig, int ib3_orig, 
                                  int jb1_orig, int jb4_orig, 
@@ -907,10 +1019,17 @@ Block* Parallel::splitHotspotBlock(MyList<Block>* &BlL, int _dim,
   {
       // 映射表逻辑
       int target_rank = block_id;
-      if (block_id == 26)      target_rank = 25;
+      switch(block_id){
-      else if (block_id == 29) target_rank = 30;
+        case 24: target_rank = 23; break;
-      else if (block_id == 34) target_rank = 33;
+        case 25: target_rank = 23; break;
-      else if (block_id == 37) target_rank = 38;
+        case 26: target_rank = 23; break;
+        case 29: target_rank = 30; break;
+        case 34: target_rank = 33; break;
+        case 37: target_rank = 40; break;
+        case 38: target_rank = 40; break;
+        case 39: target_rank = 40; break;
+        
+      }
 
       Block* ng = new Block(dim, shape, bbox, target_rank, ingfsi, fngfsi, lev);
 

AMSS_NCKU_source/Parallel.h

@@ -32,12 +32,21 @@ namespace Parallel
   int partition2(int *nxy, int split_size, int *min_width, int cpusize, int *shape); // special for 2 diemnsions
   int partition3(int *nxyz, int split_size, int *min_width, int cpusize, int *shape);
   MyList<Block> *distribute(MyList<Patch> *PatchLIST, int cpusize, int ingfsi, int fngfs, bool periodic, int nodes = 0); // produce corresponding Blocks
+
   MyList<Block> *distribute_hard(MyList<Patch> *PatchLIST, int cpusize, int ingfsi, int fngfs, bool periodic, int nodes = 0); // produce corresponding Blocks
   Block* splitHotspotBlock(MyList<Block>* &BlL, int _dim, 
                                  int ib0_orig, int ib3_orig, 
                                  int jb1_orig, int jb4_orig, 
                                  int kb2_orig, int kb5_orig, 
-                                 Patch* PP, int r_left, int r_right, 
+                                 Patch* PP, int r_1, int r_2, 
+                                 int ingfsi, int fngfsi, bool periodic,
+                                 Block* &split_first_block, Block* &split_last_block);
+
+Block* splitHotspotBlock(MyList<Block>* &BlL, int _dim, 
+                                 int ib0_orig, int ib3_orig, 
+                                 int jb1_orig, int jb4_orig, 
+                                 int kb2_orig, int kb5_orig, 
+                                 Patch* PP, int r_1, int r_2, int r_3, int r_4,
                                  int ingfsi, int fngfsi, bool periodic,
                                  Block* &split_first_block, Block* &split_last_block);
   Block* createMappedBlock(MyList<Block>* &BlL, int _dim, int* shape, double* bbox,