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simple_mpi.cpp
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4// Epetra: Linear Algebra Services Package
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41
42
43// Petra_Comm Test routine
44
45#include <math.h>
46#include <unistd.h>
47#include <string.h>
48#include <ctype.h>
49#include <stdlib.h>
50#include <iostream.h>
51#include <mpi.h>
52
53int main(int argc, char *argv[]) {
54
55 // Initialize MPI
56
57 MPI_Init(&argc,&argv);
58 int size, rank; // Number of MPI processes, My process ID
59
60 MPI_Comm_size(MPI_COMM_WORLD, &size);
61 MPI_Comm_rank(MPI_COMM_WORLD, &rank);
62
63 cout << "Process "<<rank<<" of "<<size<<" is alive." <<endl;
64
65 MPI_Finalize();
66 return 0;
67}
int main(int argc, char *argv[])