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openmpi/ompi/mca/pml/cm/pml_cm_recvreq.c
Rainer Keller 6c5532072a - 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 04:56:31 +00:00

78 строки
2.6 KiB
C

/*
* Copyright (c) 2004-2005 The Trustees of Indiana University and Indiana
* University Research and Technology
* Corporation. All rights reserved.
* Copyright (c) 2004-2007 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) 2004-2006 The Regents of the University of California.
* All rights reserved.
* $COPYRIGHT$
*
* Additional copyrights may follow
*
* $HEADER$
*/
#include "ompi_config.h"
#include "pml_cm.h"
#include "pml_cm_recvreq.h"
static int
mca_pml_cm_recv_request_free(struct ompi_request_t** request)
{
mca_pml_cm_request_t* recvreq = *(mca_pml_cm_request_t**)request;
assert( false == recvreq->req_free_called );
OPAL_THREAD_LOCK(&ompi_request_lock);
recvreq->req_free_called = true;
if( true == recvreq->req_pml_complete ) {
if( MCA_PML_CM_REQUEST_RECV_THIN == recvreq->req_pml_type ) {
MCA_PML_CM_THIN_RECV_REQUEST_RETURN((mca_pml_cm_hvy_recv_request_t*)recvreq );
} else {
MCA_PML_CM_HVY_RECV_REQUEST_RETURN((mca_pml_cm_hvy_recv_request_t*)recvreq );
}
}
OPAL_THREAD_UNLOCK(&ompi_request_lock);
*request = MPI_REQUEST_NULL;
return OMPI_SUCCESS;
}
void mca_pml_cm_recv_request_completion(struct mca_mtl_request_t *mtl_request)
{
mca_pml_cm_request_t *base_request =
(mca_pml_cm_request_t*) mtl_request->ompi_req;
if( MCA_PML_CM_REQUEST_RECV_THIN == base_request->req_pml_type ) {
MCA_PML_CM_THIN_RECV_REQUEST_PML_COMPLETE(((mca_pml_cm_thin_recv_request_t*)base_request));
} else {
MCA_PML_CM_HVY_RECV_REQUEST_PML_COMPLETE(((mca_pml_cm_hvy_recv_request_t*)base_request));
}
}
static void
mca_pml_cm_recv_request_construct(mca_pml_cm_thin_recv_request_t* recvreq)
{
recvreq->req_base.req_ompi.req_free = mca_pml_cm_recv_request_free;
recvreq->req_base.req_ompi.req_cancel = mca_pml_cm_cancel;
OBJ_CONSTRUCT( &(recvreq->req_base.req_convertor), opal_convertor_t );
}
OBJ_CLASS_INSTANCE(mca_pml_cm_thin_recv_request_t,
mca_pml_cm_request_t,
mca_pml_cm_recv_request_construct,
NULL);
OBJ_CLASS_INSTANCE(mca_pml_cm_hvy_recv_request_t,
mca_pml_cm_request_t,
mca_pml_cm_recv_request_construct,
NULL);