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31 | #include <mpi.h>
#include <omp.h>
#include <stdio.h>
int main(int argc, char *argv[])
{
MPI_Init(&argc, &argv);
int my_rank = -1;
int process_count = -1;
MPI_Comm_rank(MPI_COMM_WORLD, &my_rank);
MPI_Comm_size(MPI_COMM_WORLD, &process_count);
char hostname[MPI_MAX_PROCESSOR_NAME];
int hostname_length = -1;
MPI_Get_processor_name(hostname, &hostname_length);
printf("Hello from main thread of process %d of %d on %s\n"
, my_rank, process_count, hostname);
#pragma omp parallel
{
#pragma omp critical(stdout)
printf("\tHello from thread %d of %d of process %d on %s\n"
, omp_get_thread_num(), omp_get_num_threads(), my_rank, hostname);
}
MPI_Finalize();
return 0;
}
|