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#include <stdio.h>
#ifdef _OPENMP
#include <omp.h>
#endif
int main() {
int i;
#pragma omp parallel
{
printf("parallel\n");
#pragma omp for nowait
for(i=0; i<4; ++i) {
printf("do nowait %d\n", i);
}
#pragma omp barrier
#pragma omp for
for(i=0; i<4; ++i) {
printf("do %d\n", i);
}
#pragma omp sections nowait
{
#pragma omp section
printf("section nowait 1\n");
#pragma omp section
{ printf("section nowait 2\n"); }
}
#pragma omp master
{
printf("master\n");
}
#pragma omp critical
{
printf("critical\n");
}
#pragma omp critical(foobar)
{
printf("critical\n");
}
#pragma omp atomic
/* -------------- */
/* do this atomic */
i += 1;
/* -------------- */
#pragma omp single
{
printf("single\n");
}
#pragma omp sections
{
#pragma omp section
{ printf("section 1\n"); }
#pragma omp section
printf("section 2\n");
}
}
printf("sequential1\n");
#pragma omp parallel for
for(i=0; i<4; ++i) {
printf("pdo %d\n", i);
}
printf("sequential2\n");
#pragma omp parallel sections
{
#pragma omp section
printf("psection 1\n");
#pragma omp section
printf("psection 2\n");
}
}
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