/********************************************************************** C-DAC Tech Workshop : HeGaPa-2012 July 16-20,2012 Example 1 : Mpi-Omp_Hello_World.c Objective : MPI-OpenMP program to print "Hello World" This example demonstrates the use of MPI LIBRARY CALLS and OPENMP Directives Input : No Input is Required Output : Each thread created by each processor prints Hello World along with its threadid and procesor rank. Created : MAY-2012 **********************************************************************/ #include #include #include "mpi.h" /* Main Program */ int main(int argc, char **argv) { int Numprocs, MyRank, iam; /* MPI - Initialization */ MPI_Init(&argc, &argv); MPI_Comm_rank(MPI_COMM_WORLD, &MyRank); MPI_Comm_size(MPI_COMM_WORLD, &Numprocs); /* OpenMP Parallel Directive */ omp_set_num_threads(4); #pragma omp parallel private(iam) { iam = omp_get_thread_num(); printf("Hello World is Printed By Process %d and Threadid %d\n", MyRank, iam); } /* MPI - Termination */ MPI_Finalize(); }