aboutsummaryrefslogtreecommitdiffstats
path: root/gcc-4.4.3/libgomp/testsuite/libgomp.c/omp_reduction.c
diff options
context:
space:
mode:
authorJing Yu <jingyu@google.com>2010-07-22 14:03:48 -0700
committerJing Yu <jingyu@google.com>2010-07-22 14:03:48 -0700
commitb094d6c4bf572654a031ecc4afe675154c886dc5 (patch)
tree89394c56b05e13a5413ee60237d65b0214fd98e2 /gcc-4.4.3/libgomp/testsuite/libgomp.c/omp_reduction.c
parentdc34721ac3bf7e3c406fba8cfe9d139393345ec5 (diff)
downloadtoolchain_gcc-b094d6c4bf572654a031ecc4afe675154c886dc5.tar.gz
toolchain_gcc-b094d6c4bf572654a031ecc4afe675154c886dc5.tar.bz2
toolchain_gcc-b094d6c4bf572654a031ecc4afe675154c886dc5.zip
commit gcc-4.4.3 which is used to build gcc-4.4.3 Android toolchain in master.
The source is based on fsf gcc-4.4.3 and contains local patches which are recorded in gcc-4.4.3/README.google. Change-Id: Id8c6d6927df274ae9749196a1cc24dbd9abc9887
Diffstat (limited to 'gcc-4.4.3/libgomp/testsuite/libgomp.c/omp_reduction.c')
-rw-r--r--gcc-4.4.3/libgomp/testsuite/libgomp.c/omp_reduction.c35
1 files changed, 35 insertions, 0 deletions
diff --git a/gcc-4.4.3/libgomp/testsuite/libgomp.c/omp_reduction.c b/gcc-4.4.3/libgomp/testsuite/libgomp.c/omp_reduction.c
new file mode 100644
index 000000000..5c9c41ec7
--- /dev/null
+++ b/gcc-4.4.3/libgomp/testsuite/libgomp.c/omp_reduction.c
@@ -0,0 +1,35 @@
+/******************************************************************************
+* FILE: omp_reduction.c
+* DESCRIPTION:
+* OpenMP Example - Combined Parallel Loop Reduction - C/C++ Version
+* This example demonstrates a sum reduction within a combined parallel loop
+* construct. Notice that default data element scoping is assumed - there
+* are no clauses specifying shared or private variables. OpenMP will
+* automatically make loop index variables private within team threads, and
+* global variables shared.
+* AUTHOR: Blaise Barney 5/99
+* LAST REVISED: 04/06/05
+******************************************************************************/
+#include <omp.h>
+#include <stdio.h>
+#include <stdlib.h>
+
+int main (int argc, char *argv[]) {
+
+int i, n;
+float a[100], b[100], sum;
+
+/* Some initializations */
+n = 100;
+for (i=0; i < n; i++)
+ a[i] = b[i] = i * 1.0;
+sum = 0.0;
+
+#pragma omp parallel for reduction(+:sum)
+ for (i=0; i < n; i++)
+ sum = sum + (a[i] * b[i]);
+
+printf(" Sum = %f\n",sum);
+
+ return 0;
+}