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#include "mpi.h"
#include <stdio.h>
int main( int argc, char **argv ){
int rank, size;
MPI_Init( &argc, &argv );
MPI_Comm_rank( MPI_COMM_WORLD, &rank );
MPI_Comm_size( MPI_COMM_WORLD, &size );
printf( "Hello world! I'm process %d of %d\n",rank, size );
return 0;