openmp/testsuite/c/omp_for_collapse.c

<ompts:test>
<ompts:testdescription>Test with omp for collapse clause. Bind with two loops. Without the collapse clause, the first loop will not be ordered</ompts:testdescription>
<ompts:ompversion>3.0</ompts:ompversion>
<ompts:directive>omp for collapse</ompts:directive>
<ompts:dependences>omp critical,omp for schedule</ompts:dependences>
<ompts:testcode>
#include <stdio.h>
#include <math.h>

#include "omp_testsuite.h"


/* Utility function to check that i is increasing monotonically 
   with each call */
static int check_i_islarger (int i)
{
    static int last_i;
    int islarger;
    if (i==1)
      last_i=0;
    islarger = ((i >= last_i)&&(i - last_i<=1));
    last_i = i;
    return (islarger);
}

int <ompts:testcode:functionname>omp_for_collapse</ompts:testcode:functionname> (FILE * logFile)
{
    <ompts:orphan:vars>
	int is_larger = 1;
    </ompts:orphan:vars>

    #pragma omp parallel
    {
	<ompts:orphan>
	  int i,j;
	  int my_islarger = 1;
      #pragma omp for private(i,j) schedule(static,1) <ompts:check>collapse(2)</ompts:check> ordered
	    for (i = 1; i < 100; i++){
          <ompts:crosscheck>my_islarger = check_i_islarger(i)&& my_islarger;</ompts:crosscheck>
          for (j =1; j <100; j++)
          {
            <ompts:check>
		    #pragma omp ordered
		      my_islarger = check_i_islarger(i)&&my_islarger;
            </ompts:check>
	      }	/* end of for */
        }
      #pragma omp critical
		is_larger = is_larger && my_islarger;
	</ompts:orphan>
    }

    return (is_larger);
}
</ompts:testcode>
</ompts:test>