diff libgomp/testsuite/libgomp.c/omp_workshare4.c @ 0:a06113de4d67

first commit
author kent <kent@cr.ie.u-ryukyu.ac.jp>
date Fri, 17 Jul 2009 14:47:48 +0900
parents
children 04ced10e8804
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--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/libgomp/testsuite/libgomp.c/omp_workshare4.c	Fri Jul 17 14:47:48 2009 +0900
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+/******************************************************************************
+* OpenMP Example - Combined Parallel Loop Work-sharing - C/C++ Version
+* FILE: omp_workshare4.c
+* DESCRIPTION:
+*   This is a corrected version of the omp_workshare3.c example. Corrections
+*   include removing all statements between the parallel for construct and
+*   the actual for loop, and introducing logic to preserve the ability to 
+*   query a thread's id and print it from inside the for loop.
+* SOURCE: Blaise Barney  5/99
+* LAST REVISED: 03/03/2002
+******************************************************************************/
+
+#include <omp.h>
+#include <stdio.h>
+#define N       50
+#define CHUNKSIZE   5
+
+main ()  {
+
+int i, chunk, tid;
+float a[N], b[N], c[N];
+char first_time;
+
+/* Some initializations */
+for (i=0; i < N; i++)
+  a[i] = b[i] = i * 1.0;
+chunk = CHUNKSIZE;
+first_time = 'y';
+
+#pragma omp parallel for     \
+  shared(a,b,c,chunk)            \
+  private(i,tid)             \
+  schedule(static,chunk)     \
+  firstprivate(first_time)
+
+  for (i=0; i < N; i++)
+    {
+    if (first_time == 'y')
+      {
+      tid = omp_get_thread_num();
+      first_time = 'n';
+      }
+    c[i] = a[i] + b[i];
+    printf("tid= %d i= %d c[i]= %f\n", tid, i, c[i]);
+    }
+
+  return 0;
+}