2004-06-24 23:28:30 +04:00
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/*
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2005-11-05 22:57:48 +03:00
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* Copyright (c) 2004-2005 The Trustees of Indiana University and Indiana
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* University Research and Technology
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* Corporation. All rights reserved.
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2007-07-11 02:16:38 +04:00
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* Copyright (c) 2004-2007 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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2007-01-21 17:24:29 +03:00
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* Copyright (c) 2004-2007 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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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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2004-06-24 23:28:30 +04:00
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* $HEADER$
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*/
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2004-10-20 05:03:09 +04:00
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#include "ompi_config.h"
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2004-06-24 23:28:30 +04:00
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#include <string.h>
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2006-02-12 04:33:29 +03:00
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#include "ompi/mca/pml/pml.h"
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#include "ompi/mca/pml/base/pml_base_sendreq.h"
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2004-06-24 23:28:30 +04:00
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static void mca_pml_base_send_request_construct(mca_pml_base_send_request_t* req);
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static void mca_pml_base_send_request_destruct(mca_pml_base_send_request_t* req);
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2007-01-21 17:24:29 +03:00
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OBJ_CLASS_INSTANCE(
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mca_pml_base_send_request_t,
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mca_pml_base_request_t,
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mca_pml_base_send_request_construct,
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mca_pml_base_send_request_destruct
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);
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2004-06-24 23:28:30 +04:00
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static void mca_pml_base_send_request_construct(mca_pml_base_send_request_t* request)
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{
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/* no need to reinit for every send -- never changes */
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2004-07-15 22:08:20 +04:00
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request->req_base.req_type = MCA_PML_REQUEST_SEND;
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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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OBJ_CONSTRUCT(&request->req_base.req_convertor, opal_convertor_t);
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2004-06-24 23:28:30 +04:00
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}
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static void mca_pml_base_send_request_destruct(mca_pml_base_send_request_t* req)
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{
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2005-10-28 07:26:36 +04:00
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/* For each request the convertor get cleaned after each message
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* (in the base _FINI macro). Therefore, as the convertor is a static object
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* we don't have to call OBJ_DESTRUCT here.
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*/
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2004-06-24 23:28:30 +04:00
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}
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