File: copyin-3.c

package info (click to toggle)
gcc-avr 1%3A5.4.0%2BAtmel3.6.2-1
  • links: PTS, VCS
  • area: main
  • in suites: bullseye
  • size: 589,872 kB
  • sloc: ansic: 2,775,581; ada: 756,757; cpp: 723,977; f90: 117,673; asm: 66,898; makefile: 62,755; xml: 44,466; sh: 29,549; exp: 23,315; objc: 15,216; fortran: 10,901; pascal: 4,185; python: 4,093; perl: 2,969; awk: 2,811; ml: 2,385; cs: 879; yacc: 316; lex: 198; haskell: 112; lisp: 8
file content (42 lines) | stat: -rw-r--r-- 653 bytes parent folder | download | duplicates (4) 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
 
/* { dg-do run } */
/* { dg-options "-O2" } */
/* { dg-require-effective-target tls_runtime } */

#include <omp.h>
#include <stdlib.h>

int thr;
#pragma omp threadprivate (thr)

int
test (int l)
{
  return l || (thr != omp_get_thread_num () * 2);
}

int
main (void)
{
  int l = 0;

  omp_set_dynamic (0);
  omp_set_num_threads (6);

  thr = 8;
  /* Broadcast the value to all threads.  */
#pragma omp parallel copyin (thr)
  ;

#pragma omp parallel reduction (||:l)
  {
    /* Now test if the broadcast succeeded.  */
    l = thr != 8;
    thr = omp_get_thread_num () * 2;
#pragma omp barrier
    l = test (l);
  }

  if (l)
    abort ();
  return 0;
}