/* -*- 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_Comm_remote_size */
#if defined(HAVE_PRAGMA_WEAK)
#pragma weak MPI_Comm_remote_size = PMPI_Comm_remote_size
#elif defined(HAVE_PRAGMA_HP_SEC_DEF)
#pragma _HP_SECONDARY_DEF PMPI_Comm_remote_size MPI_Comm_remote_size
#elif defined(HAVE_PRAGMA_CRI_DUP)
#pragma _CRI duplicate MPI_Comm_remote_size as PMPI_Comm_remote_size
#elif defined(HAVE_WEAK_ATTRIBUTE)
int MPI_Comm_remote_size(MPI_Comm comm, int *size)
__attribute__ ((weak, alias("PMPI_Comm_remote_size")));
#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_Comm_remote_size
#define MPI_Comm_remote_size PMPI_Comm_remote_size
#endif
#undef FUNCNAME
#define FUNCNAME MPI_Comm_remote_size
#undef FCNAME
#define FCNAME "MPI_Comm_remote_size"
/*@
MPI_Comm_remote_size - Determines the size of the remote group
associated with an inter-communictor
Input Parameters:
. comm - communicator (handle)
Output Parameters:
. size - number of processes in the remote group of 'comm' (integer)
.N SignalSafe
.N Fortran
.N Errors
.N MPI_SUCCESS
.N MPI_ERR_COMM
.N MPI_ERR_ARG
@*/
int MPI_Comm_remote_size(MPI_Comm comm, int *size)
{
int mpi_errno = MPI_SUCCESS;
MPIR_Comm *comm_ptr = NULL;
MPIR_FUNC_TERSE_STATE_DECL(MPID_STATE_MPI_COMM_REMOTE_SIZE);
MPIR_ERRTEST_INITIALIZED_ORDIE();
MPIR_FUNC_TERSE_ENTER(MPID_STATE_MPI_COMM_REMOTE_SIZE);
/* 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 /* HAVE_ERROR_CHECKING */
/* 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 comm_ptr is not valid, it will be reset to null */
if (comm_ptr && comm_ptr->comm_kind != MPIR_COMM_KIND__INTERCOMM) {
mpi_errno = MPIR_Err_create_code(MPI_SUCCESS,
MPIR_ERR_RECOVERABLE, FCNAME, __LINE__,
MPI_ERR_COMM, "**commnotinter", 0);
}
if (mpi_errno)
goto fn_fail;
MPIR_ERRTEST_ARGNULL(size, "size", mpi_errno);
}
MPID_END_ERROR_CHECKS;
}
#endif /* HAVE_ERROR_CHECKING */
/* ... body of routine ... */
*size = comm_ptr->remote_size;
/* ... end of body of routine ... */
#ifdef HAVE_ERROR_CHECKING
fn_exit:
#endif
MPIR_FUNC_TERSE_EXIT(MPID_STATE_MPI_COMM_REMOTE_SIZE);
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_comm_remote_size", "**mpi_comm_remote_size %C %p", comm,
size);
}
mpi_errno = MPIR_Err_return_comm(comm_ptr, FCNAME, mpi_errno);
goto fn_exit;
#endif
/* --END ERROR HANDLING-- */
}