From 045c0dc29fc31a8d3f15da8b3130dbc4706ea581 Mon Sep 17 00:00:00 2001
From: Yann Herklotz <git@yannherklotz.com>
Date: Thu, 13 Aug 2020 23:24:40 +0100
Subject: Add modified polybench benchmarks

---
 .../polybench-syn/linear-algebra/kernels/atas.c    | 100 +++++++++++++++++++++
 1 file changed, 100 insertions(+)
 create mode 100644 benchmarks/polybench-syn/linear-algebra/kernels/atas.c

(limited to 'benchmarks/polybench-syn/linear-algebra/kernels/atas.c')

diff --git a/benchmarks/polybench-syn/linear-algebra/kernels/atas.c b/benchmarks/polybench-syn/linear-algebra/kernels/atas.c
new file mode 100644
index 0000000..a051046
--- /dev/null
+++ b/benchmarks/polybench-syn/linear-algebra/kernels/atas.c
@@ -0,0 +1,100 @@
+/**
+ * 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
+ */
+/* atax.c: this file is part of PolyBench/C */
+
+#define plus(i) i = i + ONE
+static
+void init_array (int m, int n,
+   int A[ 38 + 0][42 + 0],
+   int x[ 42 + 0])
+{
+  int ONE = 1;
+  int i, j;
+  int fn;
+  fn = (int)n;
+
+  for (i = 0; i < n; plus(i))
+      x[i] = ONE + (i / fn);
+  for (i = 0; i < m; plus(i))
+    for (j = 0; j < n; plus(j))
+      A[i][j] = (int) ((i+j) % n) / (5*m);
+}
+
+
+
+
+static
+int print_array(int n,
+   int y[ 42 + 0])
+
+{
+  int i;
+  int ONE = 1;
+  int res = 0;
+
+  for (i = 0; i < n; plus(i)) {
+    res ^= y[i];
+  }
+  return res;
+}
+
+
+
+
+static
+void kernel_atax(int m, int n,
+   int A[ 38 + 0][42 + 0],
+   int x[ 42 + 0],
+   int y[ 42 + 0],
+   int tmp[ 38 + 0])
+{
+  int i, j;
+  int ONE = 1;
+
+#pragma scop
+ for (i = 0; i < n; plus(i))
+    y[i] = 0;
+  for (i = 0; i < m; plus(i))
+    {
+      tmp[i] = 0;
+      for (j = 0; j < n; plus(j))
+ tmp[i] = tmp[i] + A[i][j] * x[j];
+      for (j = 0; j < n; plus(j))
+ y[j] = y[j] + A[i][j] * tmp[i];
+    }
+#pragma endscop
+
+}
+
+
+int main()
+{
+
+  int m = 38;
+  int n = 42;
+
+
+  int A[38 + 0][42 + 0]; 
+  int x[42 + 0]; 
+  int y[42 + 0]; 
+  int tmp[38 + 0]; 
+
+  init_array (m, n, A, x);
+
+  kernel_atax (m, n,
+        A,
+        x,
+        y,
+        tmp);
+
+
+  return print_array(n, y);
+
+}
-- 
cgit