57 строки
1.6 KiB
C
57 строки
1.6 KiB
C
/*
|
|
* Copyright (c) 2004-2005 The Trustees of Indiana University and Indiana
|
|
* University Research and Technology
|
|
* Corporation. All rights reserved.
|
|
* Copyright (c) 2004-2005 The University of Tennessee and The University
|
|
* of Tennessee Research Foundation. All rights
|
|
* reserved.
|
|
* Copyright (c) 2004-2005 High Performance Computing Center Stuttgart,
|
|
* University of Stuttgart. All rights reserved.
|
|
* Copyright (c) 2004-2005 The Regents of the University of California.
|
|
* All rights reserved.
|
|
* $COPYRIGHT$
|
|
*
|
|
* Additional copyrights may follow
|
|
*
|
|
* $HEADER$
|
|
*/
|
|
#include "ompi_config.h"
|
|
#include <stdio.h>
|
|
|
|
#include "mpi/c/bindings.h"
|
|
#include "ompi/datatype/datatype.h"
|
|
|
|
#if OMPI_HAVE_WEAK_SYMBOLS && OMPI_PROFILING_DEFINES
|
|
#pragma weak MPI_Get_count = PMPI_Get_count
|
|
#endif
|
|
|
|
#if OMPI_PROFILING_DEFINES
|
|
#include "mpi/c/profile/defines.h"
|
|
#endif
|
|
|
|
static const char FUNC_NAME[] = "MPI_Get_count";
|
|
|
|
|
|
int MPI_Get_count(MPI_Status *status, MPI_Datatype datatype, int *count)
|
|
{
|
|
int size, rc;
|
|
|
|
if (MPI_PARAM_CHECK) {
|
|
OMPI_ERR_INIT_FINALIZE(FUNC_NAME);
|
|
OMPI_CHECK_DATATYPE_FOR_RECV(rc, datatype, 1);
|
|
|
|
OMPI_ERRHANDLER_CHECK(rc, MPI_COMM_WORLD, rc, FUNC_NAME);
|
|
}
|
|
|
|
if( ompi_ddt_type_size( datatype, &size ) == MPI_SUCCESS ) {
|
|
if( size == 0 ) {
|
|
*count = 0;
|
|
} else {
|
|
*count = status->_count / size;
|
|
if( ((*count) * size) != status->_count )
|
|
*count = MPI_UNDEFINED;
|
|
}
|
|
}
|
|
return MPI_SUCCESS;
|
|
}
|