add benchmark floyd-warshall

codes/floyd-warshall/floyd-warshall.c

+/**
+ * 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
+ */
+/* floyd-warshall.c: this file is part of PolyBench/C */
+
+#include <stdio.h>
+#include <unistd.h>
+#include <string.h>
+#include <math.h>
+
+/* Include polybench common header. */
+#include <polybench.h>
+
+/* Include benchmark-specific header. */
+#include "floyd-warshall.h"
+
+
+/* Array initialization. */
+static
+void init_array (int n,
+		 DATA_TYPE POLYBENCH_2D(path,N,N,n,n))
+{
+  int i, j;
+
+  for (i = 0; i < n; i++)
+    for (j = 0; j < n; j++) {
+      path[i][j] = i*j%7+1;
+      if ((i+j)%13 == 0 || (i+j)%7==0 || (i+j)%11 == 0)
+         path[i][j] = 999;
+    }
+}
+
+
+/* DCE code. Must scan the entire live-out data.
+   Can be used also to check the correctness of the output. */
+static
+void print_array(int n,
+		 DATA_TYPE POLYBENCH_2D(path,N,N,n,n))
+
+{
+  int i, j;
+
+  POLYBENCH_DUMP_START;
+  POLYBENCH_DUMP_BEGIN("path");
+  for (i = 0; i < n; i++)
+    for (j = 0; j < n; j++) {
+      if ((i * n + j) % 20 == 0) fprintf (POLYBENCH_DUMP_TARGET, "\n");
+      fprintf (POLYBENCH_DUMP_TARGET, DATA_PRINTF_MODIFIER, path[i][j]);
+    }
+  POLYBENCH_DUMP_END("path");
+  POLYBENCH_DUMP_FINISH;
+}
+
+static
+void calc_error(int n,
+		 DATA_TYPE POLYBENCH_2D(path,N,N,n,n))
+
+{
+  for (int i = 0; i < n*n; i++) {
+    }
+}
+
+
+/* Main computational kernel. The whole function will be timed,
+   including the call and return. */
+static
+void kernel_floyd_warshall(int n,
+			   DATA_TYPE POLYBENCH_2D(path,N,N,n,n))
+{
+  int i, j, k;
+
+#pragma scop
+  for (k = 0; k < _PB_N; k++)
+    {
+      for(i = 0; i < _PB_N; i++)
+	for (j = 0; j < _PB_N; j++)
+	  path[i][j] = path[i][j] < path[i][k] + path[k][j] ?
+	    path[i][j] : path[i][k] + path[k][j];
+    }
+#pragma endscop
+
+}
+
+
+int main(int argc, char** argv)
+{
+  /* Retrieve problem size. */
+  int n = N;
+
+  /* Variable declaration/allocation. */
+  POLYBENCH_2D_ARRAY_DECL(path, DATA_TYPE, N, N, n, n);
+
+
+  /* Initialize array(s). */
+  init_array (n, POLYBENCH_ARRAY(path));
+
+  /* Start timer. */
+  polybench_start_instruments;
+
+  /* Run kernel. */
+  kernel_floyd_warshall (n, POLYBENCH_ARRAY(path));
+
+  /* Stop and print timer. */
+  polybench_stop_instruments;
+  polybench_print_instruments;
+
+  /* Prevent dead-code elimination. All live-out data must be printed
+     by the function call in argument. */
+  polybench_prevent_dce(print_array(n, POLYBENCH_ARRAY(path)));
+
+  /* Be clean. */
+  POLYBENCH_FREE_ARRAY(path);
+
+  return 0;
+}

codes/floyd-warshall/floyd-warshall.h

+/**
+ * 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
+ */
+#ifndef _FLOYD_WARSHALL_H
+# define _FLOYD_WARSHALL_H
+
+/* Default to LARGE_DATASET. */
+# if !defined(MINI_DATASET) && !defined(SMALL_DATASET) && !defined(MEDIUM_DATASET) && !defined(LARGE_DATASET) && !defined(EXTRALARGE_DATASET)
+#  define LARGE_DATASET
+# endif
+
+# if !defined(N)
+/* Define sample dataset sizes. */
+#  ifdef MINI_DATASET
+#   define N 60
+#  endif
+
+#  ifdef SMALL_DATASET
+#   define N 180
+#  endif
+
+#  ifdef MEDIUM_DATASET
+#   define N 500
+#  endif
+
+#  ifdef LARGE_DATASET
+#   define N 2800
+#  endif
+
+#  ifdef EXTRALARGE_DATASET
+#   define N 5600
+#  endif
+
+
+#endif /* !(N) */
+
+# define _PB_N POLYBENCH_LOOP_BOUND(N,n)
+
+
+/* Default data type */
+# if !defined(DATA_TYPE_IS_INT) && !defined(DATA_TYPE_IS_FLOAT) && !defined(DATA_TYPE_IS_DOUBLE)
+#  define DATA_TYPE_IS_INT
+# endif
+
+#ifdef DATA_TYPE_IS_INT
+#  define DATA_TYPE int
+#  define DATA_PRINTF_MODIFIER "%d "
+#endif
+
+#ifdef DATA_TYPE_IS_FLOAT
+#  define DATA_TYPE float
+#  define DATA_PRINTF_MODIFIER "%0.2f "
+#  define SCALAR_VAL(x) x##f
+#  define SQRT_FUN(x) sqrtf(x)
+#  define EXP_FUN(x) expf(x)
+#  define POW_FUN(x,y) powf(x,y)
+# endif
+
+#ifdef DATA_TYPE_IS_DOUBLE
+#  define DATA_TYPE double
+#  define DATA_PRINTF_MODIFIER "%0.2lf "
+#  define SCALAR_VAL(x) x
+#  define SQRT_FUN(x) sqrt(x)
+#  define EXP_FUN(x) exp(x)
+#  define POW_FUN(x,y) pow(x,y)
+# endif
+
+#endif /* !_FLOYD_WARSHALL_H */