static char rcsid[] = "$Id: barrier002.c,v 1.4 2002/06/22 16:38:49 a-hasega Exp $";
/* 
 * $RWC_Release: Omni-1.6 $
 * $RWC_Copyright:
 *  Omni Compiler Software Version 1.5-1.6
 *  Copyright (C) 2002 PC Cluster Consortium
 *  
 *  This software is free software; you can redistribute it and/or modify
 *  it under the terms of the GNU Lesser General Public License version
 *  2.1 published by the Free Software Foundation.
 *  
 *  Omni Compiler Software Version 1.0-1.4
 *  Copyright (C) 1999, 2000, 2001.
 *   Tsukuba Research Center, Real World Computing Partnership, Japan.
 *  
 *  Please check the Copyright and License information in the files named
 *  COPYRIGHT and LICENSE under the top  directory of the Omni Compiler
 *  Software release kit.
 *  
 *  
 *  $
 */
/* barrier 002:
 * test barrier at nested parallel region.
 */

#include "omniConfig.h"
#include <omp.h>
#include "omni.h"


int	errors = 0;
int	thds;
int	flag;


void
func_barrier (int id)
{
  if (id == 0) {
    #pragma omp barrier
    flag = 1;
    #pragma omp flush
  } else {
    while (flag != 1) {
    #pragma omp flush
      waittime (1);
    }
  }
}


main ()
{
  thds = omp_get_max_threads ();
  if (thds == 1) {
    printf ("should be run this program on multi threads.\n");
    exit (0);
  }
  omp_set_dynamic (0);
  omp_set_nested (0);


  flag = 0;
  #pragma omp parallel
  {
    int id = omp_get_thread_num ();

    #pragma omp parallel
    {
      /* this nested parallel is serialized. */
      if (id == 0) {
	#pragma omp barrier
	flag = 1;
	#pragma omp flush
      } else {
	while (flag != 1) {
	  #pragma omp flush
	  waittime (1);
	}
      }
    }
  }

  flag = 0;
  #pragma omp parallel
  {
    int id = omp_get_thread_num ();

    #pragma omp parallel
    {
      /* this nested parallel is serialized. */
      func_barrier (id);
    }
  }


  if (errors == 0) {
    printf ("barrier 002 : SUCCESS\n");
    return 0;
  } else {
    printf ("barrier 002 : FAILED\n");
    return 1;
  }
}