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#include <mpi.h>
#include <stdio.h>
#include "mpitest.h"
int main(int argc, char *argv[])
{
MPI_Comm comm, newcomm, scomm;
MPI_Group group;
int rank, size, color;
int errs = 0, errclass, mpi_errno;
MTest_Init(&argc, &argv);
MPI_Comm_rank(MPI_COMM_WORLD, &rank);
MPI_Comm_size(MPI_COMM_WORLD, &size);
MPI_Comm_dup(MPI_COMM_WORLD, &comm);
MPI_Comm_group(comm, &group);
MPI_Errhandler_set(MPI_COMM_WORLD, MPI_ERRORS_RETURN);
MPI_Comm_create(comm, group, &newcomm);
color = rank % 2;
MPI_Comm_split(MPI_COMM_WORLD, color, rank, &scomm);
/*test inercomm_create for NULL variable */
mpi_errno = MPI_Intercomm_create(scomm, 0, MPI_COMM_WORLD, 1 - color, 52, NULL);
MPI_Error_class(mpi_errno, &errclass);
if (errclass != MPI_ERR_ARG)
++errs;
MPI_Comm_free(&comm);
MPI_Comm_free(&scomm);
MPI_Comm_free(&newcomm);
MPI_Group_free(&group);
MTest_Finalize(errs);
return 0;
}
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