Create hybrid.c

Hybrid/hybrid.c

@@ -0,0 +1,30 @@
+#include "stdio.h"
+#include "mpi.h"
+#include "omp.h"
+
+int main(int argc, char *argv[])
+{
+ int numprocs, rank, namelen;
+ char processor_name[MPI_MAX_PROCESSOR_NAME];
+ int iam = 0, np = 1;
+
+ MPI_Init(&argc, &argv); // MPI init
+ MPI_Comm_size(MPI_COMM_WORLD, &numprocs);
+ MPI_Comm_rank(MPI_COMM_WORLD, &rank);
+ MPI_Get_processor_name(processor_name, &namelen);
+
+ #pragma omp parallel default(shared) private(iam, np) // OpenMP parallel section
+ {
+ np = omp_get_num_threads();
+ iam = omp_get_thread_num();
+ printf("Hello from thread %d out of %d from process %d out of %d on %s\n",
+ iam, np, rank, numprocs, processor_name);
+ }
+
+ MPI_Finalize();
+}
+
+/*
+* to compile an hybrid program => mpicc -fopenmp hybrid.c -o hybrid
+* to execute => via sh script => mpiexec
+*/