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