static char rcsid[] = "$Id: get_mthrd006.c,v 1.6 2002/04/03 10:38:34 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.
 *  
 *  
 *  $
 */
/* omp_get_max_threads : 006
 * nested parallelism を enable にした場合の
 * omp_get_max_threads の動作を確認
 */

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


main ()
{
  int	thds, i;

  int	errors = 0;


  thds = omp_get_max_threads ();
  if (thds == 1) {
    printf ("omp_get_max_threads return 1.\n");
    printf ("please, run this program on multi thread environment.\n");
    exit (0);
  }

  omp_set_dynamic (0);
  omp_set_nested (1);
  if (omp_get_nested() == 0) {
    printf ("nested parallism is not supported.\n");
    goto END;
  }

  #pragma omp parallel
  {
    #pragma omp parallel
    {
      if (omp_get_max_threads () != thds) {
        #pragma omp critical
	errors += 1;
      }
    }
  }

#if defined(__OMNI_SCASH__) || defined(__OMNI_SHMEM__)
  /* Omni on SCASH do not support omp_set_num_threads.
   * and, some test 
   */
  printf ("skip some tests. because, Omni on SCASH/SHMEM do not support omp_set_num_threads, yet.\n");
#else
  for (i=1; i<=thds; i++) {
    omp_set_num_threads (i);

    #pragma omp parallel
    {
      #pragma omp parallel
      {
	if (omp_get_max_threads () != i) {
          #pragma omp critical
	  errors += 1;
	}
      }
    }
  }
#endif


 END:
  if (errors == 0) {
    printf ("omp_get_max_threads 006 : SUCCESS\n");
    return 0;
  } else {
    printf ("omp_get_max_threads 006 : FAILED\n");
    return 1;
  }
}