[apps, script] Don't double buffer with jacobi2d, by default

pulp-platform · Nov 28, 2023 · 4f11b13 · 4f11b13
1 parent 9db55cb
commit 4f11b13
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Showing 2 changed files with 5 additions and 1 deletion.
diff --git a/apps/jacobi2d/kernel/jacobi2d.c b/apps/jacobi2d/kernel/jacobi2d.c
@@ -83,19 +83,23 @@ void j2d_s(uint64_t r, uint64_t c, DATA_TYPE *A, DATA_TYPE *B,
         B[i * c + j] =
             (0.2) * (A[i * c + j] + A[i * c + j - 1] + A[i * c + j + 1] +
                      A[(i + 1) * c + j] + A[(i - 1) * c + j]);
+#ifdef DOUBLE_BUFFERING
     for (uint32_t i = 1; i < r - 1; i++)
       for (uint32_t j = 1; j < c - 1; j++)
         A[i * c + j] =
             (0.2) * (B[i * c + j] + B[i * c + j - 1] + B[i * c + j + 1] +
                      B[(i + 1) * c + j] + B[(i - 1) * c + j]);
+#endif
   }
 }
 
 void j2d_v(uint64_t r, uint64_t c, DATA_TYPE *A, DATA_TYPE *B,
            uint64_t tsteps) {
   for (uint32_t t = 0; t < tsteps; t++) {
     j2d_kernel_asm_v(r, c, A, B);
+#ifdef DOUBLE_BUFFERING
     j2d_kernel_asm_v(r, c, B, A);
+#endif
   }
 }
 

diff --git a/scripts/performance.py b/scripts/performance.py
@@ -62,7 +62,7 @@ def fconv3d(args, cycles):
 def jacobi2d(args, cycles):
   size        = int(args[0])
   trash_0     = args[1]
-  performance = 2 * 5 * (size-1) * (size-1) / cycles
+  performance = 5 * (size-1) * (size-1) / cycles
   return [size, performance]
 def dropout(args, cycles):
   size        = int(args[0])