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comparison libgomp/testsuite/libgomp.c/appendix-a/a.4.1.c @ 0:a06113de4d67

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author kent <kent@cr.ie.u-ryukyu.ac.jp>
date Fri, 17 Jul 2009 14:47:48 +0900
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-1:000000000000 0:a06113de4d67
1 /* { dg-do run } */
2
3 #include <omp.h>
4 extern void abort (void);
5 void
6 subdomain (float *x, int istart, int ipoints)
7 {
8 int i;
9 for (i = 0; i < ipoints; i++)
10 x[istart + i] = 123.456;
11 }
12
13 void
14 sub (float *x, int npoints)
15 {
16 int iam, nt, ipoints, istart;
17 #pragma omp parallel default(shared) private(iam,nt,ipoints,istart)
18 {
19 iam = omp_get_thread_num ();
20 nt = omp_get_num_threads ();
21 ipoints = npoints / nt; /* size of partition */
22 istart = iam * ipoints; /* starting array index */
23 if (iam == nt - 1) /* last thread may do more */
24 ipoints = npoints - istart;
25 subdomain (x, istart, ipoints);
26 }
27 }
28 int
29 main ()
30 {
31 int i;
32 float array[10000];
33 sub (array, 10000);
34 for (i = 0; i < 10000; i++)
35 if (array[i] < 123.45 || array[i] > 123.46)
36 abort ();
37 return 0;
38 }