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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) 2012 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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#include "mpir_info.h"
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/* -- Begin Profiling Symbol Block for routine MPI_Comm_get_info */
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#if defined(HAVE_PRAGMA_WEAK)
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#pragma weak MPI_Comm_get_info = PMPI_Comm_get_info
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#elif defined(HAVE_PRAGMA_HP_SEC_DEF)
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#pragma _HP_SECONDARY_DEF PMPI_Comm_get_info MPI_Comm_get_info
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#elif defined(HAVE_PRAGMA_CRI_DUP)
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#pragma _CRI duplicate MPI_Comm_get_info as PMPI_Comm_get_info
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#elif defined(HAVE_WEAK_ATTRIBUTE)
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int MPI_Comm_get_info(MPI_Comm comm, MPI_Info * info)
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__attribute__ ((weak, alias("PMPI_Comm_get_info")));
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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_Comm_get_info
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#define MPI_Comm_get_info PMPI_Comm_get_info
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#undef FUNCNAME
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#define FUNCNAME MPIR_Comm_get_info_impl
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#undef FCNAME
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#define FCNAME MPL_QUOTE(FUNCNAME)
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int MPIR_Comm_get_info_impl(MPIR_Comm * comm_ptr, MPIR_Info ** info_p_p)
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{
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int mpi_errno = MPI_SUCCESS;
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/* Allocate an empty info object */
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mpi_errno = MPIR_Info_alloc(info_p_p);
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if (mpi_errno != MPI_SUCCESS)
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goto fn_fail;
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fn_exit:
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return mpi_errno;
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fn_fail:
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goto fn_exit;
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}
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#endif /* MPICH_MPI_FROM_PMPI */
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#undef FUNCNAME
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#define FUNCNAME MPI_Comm_get_info
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#undef FCNAME
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#define FCNAME MPL_QUOTE(FUNCNAME)
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/*@
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MPI_Comm_get_info - Returns a new info object containing the hints
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of the communicator associated with comm. The current setting of
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all hints actually used by the system related to this communicator
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is returned in info_used. If no such hints exist, a handle to a
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newly created info object is returned that contains no key/value
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pair. The user is responsible for freeing info_used via
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MPI_INFO_FREE.
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Input Parameters:
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. comm - communicator object (handle)
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Output Parameters:
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. info_used - new info argument (handle)
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.N ThreadSafe
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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_ARG
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.N MPI_ERR_INFO
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.N MPI_ERR_OTHER
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@*/
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int MPI_Comm_get_info(MPI_Comm comm, MPI_Info * info_used)
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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_Info *info_used_ptr = NULL;
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MPIR_FUNC_TERSE_STATE_DECL(MPID_STATE_MPI_COMM_GET_INFO);
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MPIR_ERRTEST_INITIALIZED_ORDIE();
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MPID_THREAD_CS_ENTER(GLOBAL, MPIR_THREAD_GLOBAL_ALLFUNC_MUTEX);
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MPIR_FUNC_TERSE_ENTER(MPID_STATE_MPI_COMM_GET_INFO);
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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_ARGNULL(info_used, "info", 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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/* 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 pointers */
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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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MPIR_ERRTEST_ARGNULL(info_used, "info_used", 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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mpi_errno = MPIR_Comm_get_info_impl(comm_ptr, &info_used_ptr);
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if (mpi_errno != MPI_SUCCESS)
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goto fn_fail;
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*info_used = info_used_ptr->handle;
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/* ... end of body of routine ... */
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fn_exit:
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MPIR_FUNC_TERSE_EXIT(MPID_STATE_MPI_COMM_GET_INFO);
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MPID_THREAD_CS_EXIT(GLOBAL, MPIR_THREAD_GLOBAL_ALLFUNC_MUTEX);
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return mpi_errno;
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fn_fail:
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/* --BEGIN ERROR HANDLING-- */
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#ifdef HAVE_ERROR_CHECKING
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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__,
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MPI_ERR_OTHER, "**mpi_comm_get_info",
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"**mpi_comm_get_info %W %p", comm, info_used);
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}
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#endif
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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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/* --END ERROR HANDLING-- */
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}
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