source: CIVL/examples/omp/dataracebench-1.3.2/micro-benchmarks/DRB094-doall2-ordered-orig-no.c

/*
Copyright (c) 2017, Lawrence Livermore National Security, LLC.
Produced at the Lawrence Livermore National Laboratory
Written by Chunhua Liao, Pei-Hung Lin, Joshua Asplund,
Markus Schordan, and Ian Karlin
(email: liao6@llnl.gov, lin32@llnl.gov, asplund1@llnl.gov,
schordan1@llnl.gov, karlin1@llnl.gov)
LLNL-CODE-732144
All rights reserved.

This file is part of DataRaceBench. For details, see
https://github.com/LLNL/dataracebench. Please also see the LICENSE file
for our additional BSD notice.

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or without modification, are permitted provided that the following
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  in the documentation and/or other materials provided with the
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  may be used to endorse or promote products derived from this
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
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*/

/* 
Two-dimensional array computation: 
ordered(2) is used to associate two loops with omp for.
The corresponding loop iteration variables are private. 

ordered(n) is an OpenMP 4.5 addition. 
*/
#if (_OPENMP<201511)
#error "An OpenMP 4.5 compiler is needed to compile this test."
#endif
#include <stdio.h>
int a[100][100];
int main()
{
  int i, j;
#pragma omp parallel for ordered(2)
  for (i = 0; i < 100; i++)
    for (j = 0; j < 100; j++)
    {
      a[i][j] = a[i][j] + 1;
#pragma omp ordered depend(sink:i-1,j) depend (sink:i,j-1)
      printf ("test i=%d j=%d\n",i,j);
#pragma omp ordered depend(source)
    }
  return 0;
}