6c5532072a
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.
121 строка
3.9 KiB
C
121 строка
3.9 KiB
C
/*
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* Copyright (c) 2004-2005 The Trustees of Indiana University.
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* All rights reserved.
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* Copyright (c) 2004-2005 The Trustees of the University of Tennessee.
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* All rights reserved.
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* Copyright (c) 2004-2005 High Performance Computing Center Stuttgart,
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* University of Stuttgart. All rights reserved.
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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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* $COPYRIGHT$
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*
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* Additional copyrights may follow
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*
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* $HEADER$
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*/
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/**
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* @file
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*
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* Utility functions for Open MPI object manipulation by the One-sided code
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*
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* Utility functions for creating / finding handles for Open MPI
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* objects, usually based on indexes sent from remote peers.
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*/
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#include "ompi_config.h"
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#include "ompi/datatype/ompi_datatype.h"
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#include "ompi/proc/proc.h"
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#include "ompi/op/op.h"
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BEGIN_C_DECLS
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/**
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* Create datatype based on packed payload
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*
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* Create a useable MPI datatype based on it's packed description.
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* The datatype is owned by the calling process and must be
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* OBJ_RELEASEd when no longer in use.
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*
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* @param remote_proc The ompi_proc_t pointer for the remote process
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* @param payload A pointer to the pointer to the payload. The
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* pointer to the payload will be moved past the
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* datatype information upon successful return.
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*
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* @retval NULL A failure occrred
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* @retval non-NULL A fully operational datatype
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*/
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static inline
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struct ompi_datatype_t*
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ompi_osc_base_datatype_create(ompi_proc_t *remote_proc, void **payload)
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{
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struct ompi_datatype_t *datatype =
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ompi_datatype_create_from_packed_description(payload, remote_proc);
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if (NULL == datatype) return NULL;
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if (ompi_datatype_is_predefined(datatype)) OBJ_RETAIN(datatype);
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return datatype;
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}
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/**
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* Create datatype based on Fortran Index
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*
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* Create a useable MPI datatype based on it's Fortran index, which is
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* globally the same for predefined operations. The op handle is
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* owned by the calling process and must be OBJ_RELEASEd when no
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* longer in use.
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*
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* @param op_id The fortran index for the operaton
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*
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* @retval NULL A failure occrred
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* @retval non-NULL An op handle
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*/
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static inline
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ompi_op_t *
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ompi_osc_base_op_create(int op_id)
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{
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ompi_op_t *op = MPI_Op_f2c(op_id);
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OBJ_RETAIN(op);
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return op;
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}
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/**
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* Get the primitive datatype information for a legal one-sided accumulate datatype
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*
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* Get the primitive datatype information for a legal one-sided
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* accumulate datatype. This includes the primitive datatype used to
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* build the datatype (there can be only one) and the number of
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* instances of that primitive datatype in the datatype (there can be
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* many).
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*
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* @param datatype legal one-sided datatype
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* @param prim_datatype The primitive datatype used to build datatype
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* @param prim_count Number of instances of prim_datattpe in datatype
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*
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* @retval OMPI_SUCCESS Success
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*/
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OMPI_DECLSPEC int ompi_osc_base_get_primitive_type_info(ompi_datatype_t *datatype,
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ompi_datatype_t **prim_datatype,
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uint32_t *prim_count);
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/**
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* Apply the operation specified from inbuf to outbut
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*
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* Apply the specified reduction operation from inbuf to outbuf.
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* inbuf must contain count instances of datatype, in the local
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* process's binary mode.
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*
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* @retval OMPI_SUCCESS Success
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* @retval OMPI_ERR_NOT_SUPPORTED Called with op == ompi_mpi_op_replace
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*/
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OMPI_DECLSPEC int ompi_osc_base_process_op(void *outbuf,
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void *inbuf,
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size_t inbuflen,
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struct ompi_datatype_t *datatype,
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int count,
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ompi_op_t *op);
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END_C_DECLS
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