abd21b6d17
1. fix a bug in pml_ob1_recvreq/sendreq.c, buffer was made defined where the request has already been released. 2. complete memchecker support for collective functions. 3. change the wrongly spelled function name of memchecker, i.e. '*_isaddressible' should be '*_isaddressable' This commit was SVN r20043.
109 строки
3.6 KiB
C
109 строки
3.6 KiB
C
/*
|
|
* Copyright (c) 2004-2007 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) 2004-2008 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 "ompi/mpi/c/bindings.h"
|
|
#include "ompi/datatype/datatype.h"
|
|
#include "ompi/op/op.h"
|
|
#include "ompi/memchecker.h"
|
|
|
|
#if OMPI_HAVE_WEAK_SYMBOLS && OMPI_PROFILING_DEFINES
|
|
#pragma weak MPI_Allreduce = PMPI_Allreduce
|
|
#endif
|
|
|
|
#if OMPI_PROFILING_DEFINES
|
|
#include "ompi/mpi/c/profile/defines.h"
|
|
#endif
|
|
|
|
static const char FUNC_NAME[] = "MPI_Allreduce";
|
|
|
|
|
|
int MPI_Allreduce(void *sendbuf, void *recvbuf, int count,
|
|
MPI_Datatype datatype, MPI_Op op, MPI_Comm comm)
|
|
{
|
|
int err;
|
|
|
|
MEMCHECKER(
|
|
memchecker_datatype(datatype);
|
|
memchecker_comm(comm);
|
|
|
|
/* check whether receive buffer is defined. */
|
|
memchecker_call(&opal_memchecker_base_isaddressable, recvbuf, count, datatype);
|
|
|
|
/* check whether the actual send buffer is defined. */
|
|
if (MPI_IN_PLACE == sendbuf) {
|
|
memchecker_call(&opal_memchecker_base_isdefined, recvbuf, count, datatype);
|
|
} else {
|
|
memchecker_call(&opal_memchecker_base_isdefined, sendbuf, count, datatype);
|
|
}
|
|
);
|
|
|
|
if (MPI_PARAM_CHECK) {
|
|
char *msg;
|
|
|
|
/* Unrooted operation -- same checks for all ranks on both
|
|
intracommunicators and intercommunicators */
|
|
|
|
err = MPI_SUCCESS;
|
|
OMPI_ERR_INIT_FINALIZE(FUNC_NAME);
|
|
if (ompi_comm_invalid(comm)) {
|
|
return OMPI_ERRHANDLER_INVOKE(MPI_COMM_WORLD, MPI_ERR_COMM,
|
|
FUNC_NAME);
|
|
} else if (MPI_OP_NULL == op) {
|
|
err = MPI_ERR_OP;
|
|
} else if (!ompi_op_is_valid(op, datatype, &msg, FUNC_NAME)) {
|
|
int ret = OMPI_ERRHANDLER_INVOKE(comm, MPI_ERR_OP, msg);
|
|
free(msg);
|
|
return ret;
|
|
} else if( MPI_IN_PLACE == recvbuf ) {
|
|
return OMPI_ERRHANDLER_INVOKE(MPI_COMM_WORLD, MPI_ERR_BUFFER,
|
|
FUNC_NAME);
|
|
} else if( (sendbuf == recvbuf) &&
|
|
(MPI_BOTTOM != sendbuf) &&
|
|
(count > 1) ) {
|
|
return OMPI_ERRHANDLER_INVOKE(MPI_COMM_WORLD, MPI_ERR_BUFFER,
|
|
FUNC_NAME);
|
|
} else {
|
|
OMPI_CHECK_DATATYPE_FOR_SEND(err, datatype, count);
|
|
}
|
|
OMPI_ERRHANDLER_CHECK(err, comm, err, FUNC_NAME);
|
|
}
|
|
|
|
/* MPI-1, p114, says that each process must supply at least
|
|
one element. But at least the Pallas benchmarks call
|
|
MPI_REDUCE with a count of 0. So be sure to handle it. */
|
|
|
|
if (0 == count) {
|
|
return MPI_SUCCESS;
|
|
}
|
|
|
|
OPAL_CR_ENTER_LIBRARY();
|
|
|
|
/* Invoke the coll component to perform the back-end operation */
|
|
|
|
OBJ_RETAIN(op);
|
|
err = comm->c_coll.coll_allreduce(sendbuf, recvbuf, count,
|
|
datatype, op, comm,
|
|
comm->c_coll.coll_allreduce_module);
|
|
OBJ_RELEASE(op);
|
|
OMPI_ERRHANDLER_RETURN(err, comm, err, FUNC_NAME);
|
|
}
|
|
|