From aa986aacbb80e9f92f77d65de74ba5051054eac7 Mon Sep 17 00:00:00 2001
From: Yann Herklotz <git@yannherklotz.com>
Date: Sun, 11 Jul 2021 01:19:52 +0200
Subject: Add divider benchmarks

---
 benchmarks/polybench-syn-div/stencils/heat-3d.c | 112 ++++++++++++++++++++++++
 1 file changed, 112 insertions(+)
 create mode 100644 benchmarks/polybench-syn-div/stencils/heat-3d.c

(limited to 'benchmarks/polybench-syn-div/stencils/heat-3d.c')

diff --git a/benchmarks/polybench-syn-div/stencils/heat-3d.c b/benchmarks/polybench-syn-div/stencils/heat-3d.c
new file mode 100644
index 0000000..f93082e
--- /dev/null
+++ b/benchmarks/polybench-syn-div/stencils/heat-3d.c
@@ -0,0 +1,112 @@
+/**
+ * This version is stamped on May 10, 2016
+ *
+ * Contact:
+ *   Louis-Noel Pouchet <pouchet.ohio-state.edu>
+ *   Tomofumi Yuki <tomofumi.yuki.fr>
+ *
+ * Web address: http://polybench.sourceforge.net
+ */
+/* heat-3d.c: this file is part of PolyBench/C */
+
+#include "../include/misc.h"
+
+#ifndef SYNTHESIS
+#include <stdio.h>
+#endif
+
+#define plus(i) i = i + ONE
+static
+void init_array (int n,
+   int A[ 10 + 0][10 + 0][10 + 0],
+   int B[ 10 + 0][10 + 0][10 + 0])
+{
+  int i, j, k;
+  int ONE = 1;
+
+  for (i = 0; i < n; plus(i))
+    for (j = 0; j < n; plus(j))
+      for (k = 0; k < n; plus(k))
+        A[i][j][k] = B[i][j][k] = (int) (i + j + (n-k))* (10 / n);
+}
+
+
+
+
+static
+int print_array(int n,
+   int A[ 10 + 0][10 + 0][10 + 0])
+
+{
+  int i, j, k;
+  int ONE = 1;
+  int res = 0;
+
+  for (i = 0; i < n; plus(i))
+    for (j = 0; j < n; plus(j))
+      for (k = 0; k < n; plus(k)) {
+         res ^= A[i][j][k];
+      }
+#ifndef SYNTHESIS
+  printf("finished %u\n", res);
+#endif
+    return res;
+}
+
+
+
+
+static
+void kernel_heat_3d(int tsteps,
+        int n,
+        int A[ 10 + 0][10 + 0][10 + 0],
+        int B[ 10 + 0][10 + 0][10 + 0])
+{
+  int t, i, j, k;
+  int ONE = 1;
+  int TWO = 2;
+
+ for (t = 1; t <= 5; plus(t)) {
+        for (i = 1; i < n-ONE; plus(i)) {
+            for (j = 1; j < n-ONE; plus(j)) {
+                for (k = 1; k < n-ONE; plus(k)) {
+                    B[i][j][k] = ((A[i+ONE][j][k] - TWO * A[i][j][k] + A[i-ONE][j][k]) >> 4) 
+                                 + ((A[i][j+ONE][k] - TWO * A[i][j][k] + A[i][j-ONE][k]) >> 4)
+                                 + ((A[i][j][k+ONE] - TWO * A[i][j][k] + A[i][j][k-ONE]) >> 4)
+                                 + A[i][j][k]
+                                    ;
+                }
+            }
+        }
+        for (i = 1; i < n-ONE; plus(i)) {
+           for (j = 1; j < n-ONE; plus(j)) {
+               for (k = 1; k < n-ONE; plus(k)) {
+                   A[i][j][k] = ((B[i+ONE][j][k] - TWO * B[i][j][k] + B[i-ONE][j][k]) >> 4 )
+                                + ((B[i][j+ONE][k] - TWO * B[i][j][k] + B[i][j-ONE][k]) >> 4 )
+                                + ((B[i][j][k+ONE] - TWO * B[i][j][k] + B[i][j][k-ONE]) >> 4 )
+                                + B[i][j][k];
+                                    //;
+               }
+           }
+       }
+    }
+}
+
+
+int main()
+{
+
+  int n = 10;
+  int tsteps = 20;
+
+
+  int A[10 + 0][10 + 0][10 + 0];
+  int B[10 + 0][10 + 0][10 + 0];
+
+  init_array (n, A, B);
+
+  kernel_heat_3d (tsteps, n, A, B);
+
+  return print_array(n, A);
+
+}
-- 
cgit