AndiH · September 30, 2019 16:03
diff --git a/.gitignore b/.gitignore
 omp_id
diff --git a/Makefile b/Makefile
 CC = mpicc
 C_OPT ?= -fopenmp

 .PHONY: all
 all: omp_id

 omp_id: omp_id.c Makefile
 	$(CC) $(C_OPT) -o $@ $<
diff --git a/omp_id.c b/omp_id.c
 #define _GNU_SOURCE // sched_getcpu(3) is glibc-specific (see the man page)

 #include <stdio.h>
 #include <mpi.h>
 #include <sched.h>
 #include <omp.h>

 int main(int argc, char** argv) {
    MPI_Init(NULL, NULL);
    
    int world_size;
    MPI_Comm_size(MPI_COMM_WORLD, &world_size);
    int world_rank;
    MPI_Comm_rank(MPI_COMM_WORLD, &world_rank);

 #pragma omp parallel
    {
        int thread_num = omp_get_thread_num();
        int cpu_num = sched_getcpu();
        printf("MPI Rank: %3d, OpenMP Thread ID: %3d, Physical CPU ID: %3d\n", world_rank, thread_num, cpu_num);
    }

    MPI_Finalize();
    return 0;
 }
	#define _GNU_SOURCE // sched_getcpu(3) is glibc-specific (see the man page)

	#include <stdio.h>
	#include <mpi.h>
	#include <sched.h>
	#include <omp.h>

	int main(int argc, char** argv) {
	MPI_Init(NULL, NULL);

	int world_size;
	MPI_Comm_size(MPI_COMM_WORLD, &world_size);
	int world_rank;
	MPI_Comm_rank(MPI_COMM_WORLD, &world_rank);

	#pragma omp parallel
	{
	int thread_num = omp_get_thread_num();
	int cpu_num = sched_getcpu();
	printf("MPI Rank: %3d, OpenMP Thread ID: %3d, Physical CPU ID: %3d\n", world_rank, thread_num, cpu_num);
	}

	MPI_Finalize();
	return 0;
	}