2004-01-30 00:42:40 +03:00
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/*
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2007-03-17 02:11:45 +03:00
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* Copyright (c) 2004-2007 The Trustees of Indiana University and Indiana
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2005-11-05 22:57:48 +03:00
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* University Research and Technology
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* Corporation. All rights reserved.
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2012-05-24 17:41:51 +04:00
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* Copyright (c) 2004-2012 The University of Tennessee and The University
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2005-11-05 22:57:48 +03:00
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* of Tennessee Research Foundation. All rights
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* reserved.
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2008-02-12 11:46:27 +03:00
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* Copyright (c) 2004-2008 High Performance Computing Center Stuttgart,
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2004-11-28 23:09:25 +03:00
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* University of Stuttgart. All rights reserved.
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2005-03-24 15:43:37 +03:00
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* Copyright (c) 2004-2005 The Regents of the University of California.
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* All rights reserved.
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2012-05-24 17:26:44 +04:00
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* Copyright (c) 2006-2012 Cisco Systems, Inc. All rights reserved.
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2012-08-03 05:09:59 +04:00
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* Copyright (c) 2012 Los Alamos National Security, LLC. All rights
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* reserved.
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2004-11-22 04:38:40 +03:00
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* $COPYRIGHT$
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*
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* Additional copyrights may follow
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*
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2004-10-15 23:31:47 +04:00
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* $HEADER$
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2004-01-30 00:42:40 +03:00
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*/
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2004-06-07 19:33:53 +04:00
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#include "ompi_config.h"
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2004-01-30 00:42:40 +03:00
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#include <stdio.h>
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2006-02-12 04:33:29 +03:00
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#include "ompi/mpi/c/bindings.h"
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2009-04-29 05:32:14 +04:00
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#include "ompi/runtime/params.h"
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#include "ompi/communicator/communicator.h"
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#include "ompi/errhandler/errhandler.h"
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- Split the datatype engine into two parts: an MPI specific part in
OMPI
and a language agnostic part in OPAL. The convertor is completely
moved into OPAL. This offers several benefits as described in RFC
http://www.open-mpi.org/community/lists/devel/2009/07/6387.php
namely:
- Fewer basic types (int* and float* types, boolean and wchar
- Fixing naming scheme to ompi-nomenclature.
- Usability outside of the ompi-layer.
- Due to the fixed nature of simple opal types, their information is
completely
known at compile time and therefore constified
- With fewer datatypes (22), the actual sizes of bit-field types may be
reduced
from 64 to 32 bits, allowing reorganizing the opal_datatype
structure, eliminating holes and keeping data required in convertor
(upon send/recv) in one cacheline...
This has implications to the convertor-datastructure and other parts
of the code.
- Several performance tests have been run, the netpipe latency does not
change with
this patch on Linux/x86-64 on the smoky cluster.
- Extensive tests have been done to verify correctness (no new
regressions) using:
1. mpi_test_suite on linux/x86-64 using clean ompi-trunk and
ompi-ddt:
a. running both trunk and ompi-ddt resulted in no differences
(except for MPI_SHORT_INT and MPI_TYPE_MIX_LB_UB do now run
correctly).
b. with --enable-memchecker and running under valgrind (one buglet
when run with static found in test-suite, commited)
2. ibm testsuite on linux/x86-64 using clean ompi-trunk and ompi-ddt:
all passed (except for the dynamic/ tests failed!! as trunk/MTT)
3. compilation and usage of HDF5 tests on Jaguar using PGI and
PathScale compilers.
4. compilation and usage on Scicortex.
- Please note, that for the heterogeneous case, (-m32 compiled
binaries/ompi), neither
ompi-trunk, nor ompi-ddt branch would successfully launch.
This commit was SVN r21641.
2009-07-13 08:56:31 +04:00
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#include "ompi/datatype/ompi_datatype.h"
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2008-02-12 21:01:17 +03:00
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#include "ompi/memchecker.h"
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2004-01-30 00:42:40 +03:00
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2009-05-07 00:11:28 +04:00
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#if OPAL_HAVE_WEAK_SYMBOLS && OMPI_PROFILING_DEFINES
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2004-01-30 00:42:40 +03:00
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#pragma weak MPI_Scatterv = PMPI_Scatterv
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#endif
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2004-06-07 19:33:53 +04:00
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#if OMPI_PROFILING_DEFINES
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2006-02-12 04:33:29 +03:00
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#include "ompi/mpi/c/profile/defines.h"
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2004-04-20 22:50:43 +04:00
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#endif
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2004-07-30 06:58:53 +04:00
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static const char FUNC_NAME[] = "MPI_Scatterv";
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2004-06-29 04:02:25 +04:00
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2012-08-03 05:09:59 +04:00
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int MPI_Scatterv(void *sendbuf, int sendcounts[], int displs[],
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2004-01-30 00:42:40 +03:00
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MPI_Datatype sendtype, void *recvbuf, int recvcount,
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2004-06-29 04:02:25 +04:00
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MPI_Datatype recvtype, int root, MPI_Comm comm)
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{
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int i, size, err;
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2007-03-17 02:11:45 +03:00
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2008-02-12 11:46:27 +03:00
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MEMCHECKER(
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2008-11-27 19:34:02 +03:00
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ptrdiff_t ext;
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2012-05-24 17:41:51 +04:00
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size = ompi_comm_remote_size(comm);
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- Split the datatype engine into two parts: an MPI specific part in
OMPI
and a language agnostic part in OPAL. The convertor is completely
moved into OPAL. This offers several benefits as described in RFC
http://www.open-mpi.org/community/lists/devel/2009/07/6387.php
namely:
- Fewer basic types (int* and float* types, boolean and wchar
- Fixing naming scheme to ompi-nomenclature.
- Usability outside of the ompi-layer.
- Due to the fixed nature of simple opal types, their information is
completely
known at compile time and therefore constified
- With fewer datatypes (22), the actual sizes of bit-field types may be
reduced
from 64 to 32 bits, allowing reorganizing the opal_datatype
structure, eliminating holes and keeping data required in convertor
(upon send/recv) in one cacheline...
This has implications to the convertor-datastructure and other parts
of the code.
- Several performance tests have been run, the netpipe latency does not
change with
this patch on Linux/x86-64 on the smoky cluster.
- Extensive tests have been done to verify correctness (no new
regressions) using:
1. mpi_test_suite on linux/x86-64 using clean ompi-trunk and
ompi-ddt:
a. running both trunk and ompi-ddt resulted in no differences
(except for MPI_SHORT_INT and MPI_TYPE_MIX_LB_UB do now run
correctly).
b. with --enable-memchecker and running under valgrind (one buglet
when run with static found in test-suite, commited)
2. ibm testsuite on linux/x86-64 using clean ompi-trunk and ompi-ddt:
all passed (except for the dynamic/ tests failed!! as trunk/MTT)
3. compilation and usage of HDF5 tests on Jaguar using PGI and
PathScale compilers.
4. compilation and usage on Scicortex.
- Please note, that for the heterogeneous case, (-m32 compiled
binaries/ompi), neither
ompi-trunk, nor ompi-ddt branch would successfully launch.
This commit was SVN r21641.
2009-07-13 08:56:31 +04:00
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ompi_datatype_type_extent(recvtype, &ext);
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2008-11-27 19:34:02 +03:00
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2008-02-12 11:46:27 +03:00
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memchecker_comm(comm);
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2008-12-03 20:44:21 +03:00
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if(OMPI_COMM_IS_INTRA(comm)) {
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if(ompi_comm_rank(comm) == root) {
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memchecker_datatype(sendtype);
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/* check whether root's send buffer is defined. */
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for (i = 0; i < size; i++) {
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memchecker_call(&opal_memchecker_base_isdefined,
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(char *)(sendbuf)+displs[i]*ext,
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sendcounts[i], sendtype);
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}
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if(MPI_IN_PLACE != recvbuf) {
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memchecker_datatype(recvtype);
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/* check whether receive buffer is addressable. */
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memchecker_call(&opal_memchecker_base_isaddressable, recvbuf, recvcount, recvtype);
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}
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} else {
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memchecker_datatype(recvtype);
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/* check whether receive buffer is addressable. */
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memchecker_call(&opal_memchecker_base_isaddressable, recvbuf, recvcount, recvtype);
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}
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} else {
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if(MPI_ROOT == root) {
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memchecker_datatype(sendtype);
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/* check whether root's send buffer is defined. */
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for (i = 0; i < size; i++) {
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memchecker_call(&opal_memchecker_base_isdefined,
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(char *)(sendbuf)+displs[i]*ext,
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sendcounts[i], sendtype);
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}
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} else if (MPI_PROC_NULL != root) {
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/* check whether receive buffer is addressable. */
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memchecker_call(&opal_memchecker_base_isaddressable, recvbuf, recvcount, recvtype);
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2008-11-27 19:34:02 +03:00
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}
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}
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2008-02-12 11:46:27 +03:00
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);
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2004-06-29 04:02:25 +04:00
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if (MPI_PARAM_CHECK) {
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2004-07-30 23:14:55 +04:00
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err = MPI_SUCCESS;
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2004-06-29 04:02:25 +04:00
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OMPI_ERR_INIT_FINALIZE(FUNC_NAME);
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if (ompi_comm_invalid(comm)) {
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2005-09-13 21:07:03 +04:00
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return OMPI_ERRHANDLER_INVOKE(MPI_COMM_WORLD, MPI_ERR_COMM,
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2004-06-29 04:02:25 +04:00
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FUNC_NAME);
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2005-09-13 21:07:03 +04:00
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} else if ((ompi_comm_rank(comm) != root && MPI_IN_PLACE == recvbuf) ||
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2006-10-05 02:36:01 +04:00
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(ompi_comm_rank(comm) == root && MPI_IN_PLACE == sendbuf)) {
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2005-09-13 21:07:03 +04:00
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return OMPI_ERRHANDLER_INVOKE(comm, MPI_ERR_ARG, FUNC_NAME);
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}
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2004-06-29 04:02:25 +04:00
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/* Errors for intracommunicators */
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if (OMPI_COMM_IS_INTRA(comm)) {
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2012-05-24 17:41:51 +04:00
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/* Errors for all ranks */
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2004-06-29 04:02:25 +04:00
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2012-05-24 17:41:51 +04:00
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if ((root >= ompi_comm_size(comm)) || (root < 0)) {
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return OMPI_ERRHANDLER_INVOKE(comm, MPI_ERR_ROOT, FUNC_NAME);
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}
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2004-06-29 04:02:25 +04:00
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2012-05-24 17:41:51 +04:00
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if (MPI_IN_PLACE != recvbuf) {
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if (recvcount < 0) {
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return OMPI_ERRHANDLER_INVOKE(comm, MPI_ERR_COUNT,
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FUNC_NAME);
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}
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2005-09-13 23:07:13 +04:00
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2012-05-24 17:41:51 +04:00
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if (MPI_DATATYPE_NULL == recvtype || NULL == recvtype) {
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return OMPI_ERRHANDLER_INVOKE(comm, MPI_ERR_TYPE,
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FUNC_NAME);
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}
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2004-06-29 04:02:25 +04:00
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}
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2012-05-24 17:41:51 +04:00
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/* Errors for the root. Some of these could have been
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combined into compound if statements above, but since
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this whole section can be compiled out (or turned off at
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run time) for efficiency, it's more clear to separate
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them out into individual tests. */
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2004-06-29 04:02:25 +04:00
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2012-05-24 17:41:51 +04:00
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if (ompi_comm_rank(comm) == root) {
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if (NULL == displs) {
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return OMPI_ERRHANDLER_INVOKE(comm, MPI_ERR_ARG, FUNC_NAME);
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}
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if (NULL == sendcounts) {
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return OMPI_ERRHANDLER_INVOKE(comm, MPI_ERR_COUNT, FUNC_NAME);
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}
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2012-05-24 17:26:44 +04:00
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2012-05-24 17:41:51 +04:00
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size = ompi_comm_size(comm);
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for (i = 0; i < size; ++i) {
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OMPI_CHECK_DATATYPE_FOR_SEND(err, sendtype, sendcounts[i]);
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OMPI_ERRHANDLER_CHECK(err, comm, err, FUNC_NAME);
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}
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2004-06-29 04:02:25 +04:00
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}
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}
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/* Errors for intercommunicators */
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else {
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2012-05-24 17:41:51 +04:00
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if (! ((root >= 0 && root < ompi_comm_remote_size(comm)) ||
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MPI_ROOT == root || MPI_PROC_NULL == root)) {
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return OMPI_ERRHANDLER_INVOKE(comm, MPI_ERR_ROOT, FUNC_NAME);
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}
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2004-06-29 04:02:25 +04:00
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/* Errors for the receivers */
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2012-05-24 17:41:51 +04:00
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if (MPI_ROOT != root && MPI_PROC_NULL != root) {
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if (recvcount < 0) {
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return OMPI_ERRHANDLER_INVOKE(comm, MPI_ERR_COUNT, FUNC_NAME);
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}
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2004-06-29 04:02:25 +04:00
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2012-05-24 17:41:51 +04:00
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if (MPI_DATATYPE_NULL == recvtype || NULL == recvtype) {
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return OMPI_ERRHANDLER_INVOKE(comm, MPI_ERR_TYPE, FUNC_NAME);
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}
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2004-06-29 04:02:25 +04:00
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}
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2012-05-24 17:41:51 +04:00
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/* Errors for the root. Ditto on the comment above -- these
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error checks could have been combined above, but let's
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make the code easier to read. */
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2004-06-29 04:02:25 +04:00
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2012-05-24 17:41:51 +04:00
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else if (MPI_ROOT == root) {
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if (NULL == displs) {
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return OMPI_ERRHANDLER_INVOKE(comm, MPI_ERR_ARG, FUNC_NAME);
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}
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2004-06-29 04:02:25 +04:00
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2012-05-24 17:41:51 +04:00
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if (NULL == sendcounts) {
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return OMPI_ERRHANDLER_INVOKE(comm, MPI_ERR_COUNT, FUNC_NAME);
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}
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2004-06-29 04:02:25 +04:00
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2012-05-24 17:41:51 +04:00
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size = ompi_comm_remote_size(comm);
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for (i = 0; i < size; ++i) {
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OMPI_CHECK_DATATYPE_FOR_SEND(err, sendtype, sendcounts[i]);
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OMPI_ERRHANDLER_CHECK(err, comm, err, FUNC_NAME);
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}
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2004-06-29 04:02:25 +04:00
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}
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}
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}
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2008-02-20 01:15:52 +03:00
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OPAL_CR_ENTER_LIBRARY();
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2004-06-29 04:02:25 +04:00
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/* Invoke the coll component to perform the back-end operation */
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err = comm->c_coll.coll_scatterv(sendbuf, sendcounts, displs, sendtype,
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2007-08-19 07:37:49 +04:00
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recvbuf, recvcount, recvtype, root, comm,
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comm->c_coll.coll_scatterv_module);
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2004-06-29 04:02:25 +04:00
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OMPI_ERRHANDLER_RETURN(err, comm, err, FUNC_NAME);
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2004-01-30 00:42:40 +03:00
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}
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