/* -*- Mode: C; c-basic-offset:4 ; indent-tabs-mode:nil ; -*- */
/*
*
* (C) 2001 by Argonne National Laboratory.
* See COPYRIGHT in top-level directory.
*/
#include "mpiimpl.h"
/* -- Begin Profiling Symbol Block for routine MPI_Topo_test */
#if defined(HAVE_PRAGMA_WEAK)
#pragma weak MPI_Topo_test = PMPI_Topo_test
#elif defined(HAVE_PRAGMA_HP_SEC_DEF)
#pragma _HP_SECONDARY_DEF PMPI_Topo_test MPI_Topo_test
#elif defined(HAVE_PRAGMA_CRI_DUP)
#pragma _CRI duplicate MPI_Topo_test as PMPI_Topo_test
#elif defined(HAVE_WEAK_ATTRIBUTE)
int MPI_Topo_test(MPI_Comm comm, int *status) __attribute__ ((weak, alias("PMPI_Topo_test")));
#endif
/* -- End Profiling Symbol Block */
/* Define MPICH_MPI_FROM_PMPI if weak symbols are not supported to build
the MPI routines */
#ifndef MPICH_MPI_FROM_PMPI
#undef MPI_Topo_test
#define MPI_Topo_test PMPI_Topo_test
#endif
#undef FUNCNAME
#define FUNCNAME MPI_Topo_test
#undef FCNAME
#define FCNAME MPL_QUOTE(FUNCNAME)
/*@
MPI_Topo_test - Determines the type of topology (if any) associated with a
communicator
Input Parameters:
. comm - communicator (handle)
Output Parameters:
. status - topology type of communicator 'comm' (integer). If the
communicator has no associated topology, returns 'MPI_UNDEFINED'.
.N SignalSafe
.N Fortran
.N Errors
.N MPI_SUCCESS
.N MPI_ERR_COMM
.N MPI_ERR_ARG
.seealso: MPI_Graph_create, MPI_Cart_create
@*/
int MPI_Topo_test(MPI_Comm comm, int *status)
{
int mpi_errno = MPI_SUCCESS;
MPIR_Comm *comm_ptr = NULL;
MPIR_Topology *topo_ptr;
MPIR_FUNC_TERSE_STATE_DECL(MPID_STATE_MPI_TOPO_TEST);
MPIR_ERRTEST_INITIALIZED_ORDIE();
MPIR_FUNC_TERSE_ENTER(MPID_STATE_MPI_TOPO_TEST);
/* Validate parameters, especially handles needing to be converted */
#ifdef HAVE_ERROR_CHECKING
{
MPID_BEGIN_ERROR_CHECKS;
{
MPIR_ERRTEST_COMM(comm, mpi_errno);
}
MPID_END_ERROR_CHECKS;
}
#endif
/* Convert MPI object handles to object pointers */
MPIR_Comm_get_ptr(comm, comm_ptr);
/* Validate parameters and objects (post conversion) */
#ifdef HAVE_ERROR_CHECKING
{
MPID_BEGIN_ERROR_CHECKS;
{
/* Validate comm_ptr */
MPIR_Comm_valid_ptr(comm_ptr, mpi_errno, TRUE);
if (mpi_errno)
goto fn_fail;
/* If comm_ptr is not valid, it will be reset to null */
MPIR_ERRTEST_ARGNULL(status, "status", mpi_errno);
}
MPID_END_ERROR_CHECKS;
}
#endif /* HAVE_ERROR_CHECKING */
/* ... body of routine ... */
topo_ptr = MPIR_Topology_get(comm_ptr);
if (topo_ptr) {
*status = (int) (topo_ptr->kind);
} else {
*status = MPI_UNDEFINED;
}
/* ... end of body of routine ... */
#ifdef HAVE_ERROR_CHECKING
fn_exit:
#endif
MPIR_FUNC_TERSE_EXIT(MPID_STATE_MPI_TOPO_TEST);
return mpi_errno;
/* --BEGIN ERROR HANDLING-- */
#ifdef HAVE_ERROR_CHECKING
fn_fail:
{
mpi_errno =
MPIR_Err_create_code(mpi_errno, MPIR_ERR_RECOVERABLE, FCNAME, __LINE__, MPI_ERR_OTHER,
"**mpi_topo_test", "**mpi_topo_test %C %p", comm, status);
}
mpi_errno = MPIR_Err_return_comm(comm_ptr, FCNAME, mpi_errno);
goto fn_exit;
#endif
/* --END ERROR HANDLING-- */
}