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simple_mpi.cpp
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00004 //               Epetra: Linear Algebra Services Package 
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00041 
00042 
00043 // Petra_Comm Test routine
00044 
00045 #include <math.h>
00046 #include <unistd.h>
00047 #include <string.h>
00048 #include <ctype.h>
00049 #include <stdlib.h>
00050 #include <iostream.h>
00051 #include <mpi.h>
00052 
00053 int main(int argc, char *argv[]) {
00054 
00055   // Initialize MPI
00056 
00057   MPI_Init(&argc,&argv);
00058   int size, rank; // Number of MPI processes, My process ID
00059 
00060   MPI_Comm_size(MPI_COMM_WORLD, &size);
00061   MPI_Comm_rank(MPI_COMM_WORLD, &rank);
00062 
00063   cout << "Process "<<rank<<" of "<<size<<" is alive." <<endl;
00064 
00065   MPI_Finalize();
00066   return 0;
00067 }
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