1
1
openmpi/ompi/mca/osc/rdma/osc_rdma_longreq.h
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

71 строка
2.0 KiB
C

/*
* Copyright (c) 2004-2005 The Trustees of Indiana University.
* All rights reserved.
* Copyright (c) 2004-2005 The Trustees of the University of Tennessee.
* 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 (c) 2007 Los Alamos National Security, LLC. All rights
* reserved.
* $COPYRIGHT$
*
* Additional copyrights may follow
*
* $HEADER$
*/
#ifndef OSC_RDMA_LONGREQ_H
#define OSC_RDMA_LONGREQ_H
#include "osc_rdma.h"
#include "opal/class/opal_free_list.h"
#include "ompi/datatype/ompi_datatype.h"
#include "ompi/request/request.h"
#include "ompi/op/op.h"
struct ompi_osc_rdma_longreq_t;
typedef struct ompi_osc_rdma_longreq_t ompi_osc_rdma_longreq_t;
typedef void (*ompi_osc_rdma_longreq_cb_fn_t)(ompi_osc_rdma_longreq_t *longreq);
struct ompi_osc_rdma_longreq_t {
opal_free_list_item_t super;
ompi_request_t *request;
ompi_osc_rdma_longreq_cb_fn_t cbfunc;
void *cbdata;
/* warning - this doesn't always have a sane value */
ompi_osc_rdma_module_t *req_module;
/* for long receives, to avoid a longrecvreq type */
struct ompi_op_t *req_op;
struct ompi_datatype_t *req_datatype;
};
OBJ_CLASS_DECLARATION(ompi_osc_rdma_longreq_t);
static inline int
ompi_osc_rdma_longreq_alloc(ompi_osc_rdma_longreq_t **longreq)
{
opal_free_list_item_t *item;
int ret;
OPAL_FREE_LIST_GET(&mca_osc_rdma_component.c_longreqs,
item, ret);
*longreq = (ompi_osc_rdma_longreq_t*) item;
return ret;
}
static inline int
ompi_osc_rdma_longreq_free(ompi_osc_rdma_longreq_t *longreq)
{
OPAL_FREE_LIST_RETURN(&mca_osc_rdma_component.c_longreqs,
&longreq->super.super);
return OMPI_SUCCESS;
}
#endif