import mpi.*;
public class HelloWorldMPI {
public static void main(String[] args) throws MPIException {
MPI.Init(args);
int rank = MPI.COMM_WORLD.Rank();
int size = MPI.COMM_WORLD.Size();
System.out.println("Hello world from rank " + rank + " of " + size);
MPI.Finalize();
}
}
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