int main(int argc, char *argv[])
{
int worldrank;
-// int localrank;
-// MPI_Comm localcomm;
+ int localrank;
+ MPI_Comm localcomm;
+
MPI_Init(&argc, &argv);
MPI_Comm_rank(MPI_COMM_WORLD, &worldrank);
- printf("MPI_Comm_split is not implemented\n");
- //MPI_Comm_split(MPI_COMM_WORLD, worldrank % 2, worldrank, &localcomm);
- //MPI_Comm_rank(localcomm, &localrank);
- //printf("node with world rank %d has local rank %d\n", worldrank, localrank);
+ MPI_Comm_split(MPI_COMM_WORLD, worldrank % 2, worldrank, &localcomm);
+ MPI_Comm_rank(localcomm, &localrank);
+ printf("node with world rank %d has local rank %d\n", worldrank, localrank);
MPI_Finalize();
return 0;
}