A First MPI Program
#include "mpi.h"
#include <stdio.h>
int main( argc, argv )
int argc;char **argv;
{
MPI_Init( &argc, &argv );
printf( "Hello world\n" );
MPI_Finalize();
return 0;
}
Starts MPI
Exits MPI
Non-MPI routines are local: printf runs on each process
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