dbf0d6e5a3
only implemented for read at the moment, but the parameters for write are also in place. Signed-off-by: Edgar Gabriel <egabriel@central.uh.edu>
135 строки
6.7 KiB
C
135 строки
6.7 KiB
C
/* -*- Mode: C; c-basic-offset:4 ; indent-tabs-mode:nil -*- */
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/*
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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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* Copyright (c) 2004-2005 The University of Tennessee and The University
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* of Tennessee Research Foundation. All rights
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* 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 (c) 2008-2020 University of Houston. All rights reserved.
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* Copyright (c) 2015 Los Alamos National Security, LLC. All rights
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* 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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* These symbols are in a file by themselves to provide nice linker
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* semantics. Since linkers generally pull in symbols by object
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* files, keeping these symbols as the only symbols in this file
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* prevents utility programs such as "ompi_info" from having to import
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* entire components just to query their version and parameters.
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*/
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#include "ompi_config.h"
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#include "fbtl_posix.h"
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#include "mpi.h"
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/*
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* Public string showing the fbtl posix component version number
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*/
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const char *mca_fbtl_posix_component_version_string =
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"OMPI/MPI posix FBTL MCA component version " OMPI_VERSION;
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int mca_fbtl_posix_priority = 10;
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bool mca_fbtl_posix_read_datasieving = true;
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bool mca_fbtl_posix_write_datasieving = true;
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size_t mca_fbtl_posix_max_block_size = 1048576; // 1MB
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size_t mca_fbtl_posix_max_gap_size = 4096; // Size of a block in many linux fs
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size_t mca_fbtl_posix_max_tmpbuf_size = 67108864; // 64 MB
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/*
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* Private functions
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*/
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static int register_component(void);
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/*
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* Instantiate the public struct with all of our public information
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* and pointers to our public functions in it
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*/
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mca_fbtl_base_component_2_0_0_t mca_fbtl_posix_component = {
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/* First, the mca_component_t struct containing meta information
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about the component itself */
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.fbtlm_version = {
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MCA_FBTL_BASE_VERSION_2_0_0,
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/* Component name and version */
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.mca_component_name = "posix",
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MCA_BASE_MAKE_VERSION(component, OMPI_MAJOR_VERSION, OMPI_MINOR_VERSION,
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OMPI_RELEASE_VERSION),
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.mca_register_component_params = register_component,
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},
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.fbtlm_data = {
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/* This component is checkpointable */
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MCA_BASE_METADATA_PARAM_CHECKPOINT
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},
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.fbtlm_init_query = mca_fbtl_posix_component_init_query, /* get thread level */
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.fbtlm_file_query = mca_fbtl_posix_component_file_query, /* get priority and actions */
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.fbtlm_file_unquery = mca_fbtl_posix_component_file_unquery, /* undo what was done by previous function */
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};
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static int register_component(void)
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{
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mca_fbtl_posix_priority = 10;
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(void) mca_base_component_var_register(&mca_fbtl_posix_component.fbtlm_version,
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"priority", "Priority of the fbtl posix component",
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MCA_BASE_VAR_TYPE_INT, NULL, 0, 0,
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OPAL_INFO_LVL_9,
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MCA_BASE_VAR_SCOPE_READONLY,
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&mca_fbtl_posix_priority);
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mca_fbtl_posix_max_block_size = 1048576;
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(void) mca_base_component_var_register(&mca_fbtl_posix_component.fbtlm_version,
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"max_block_size", "Maximum average size in bytes of a data block in an iovec for data sieving. "
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"An average block size larger than this parameter will disable data sieving. Default: 1048576 bytes.",
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MCA_BASE_VAR_TYPE_SIZE_T, NULL, 0, 0,
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OPAL_INFO_LVL_9,
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MCA_BASE_VAR_SCOPE_READONLY,
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&mca_fbtl_posix_max_block_size );
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mca_fbtl_posix_max_gap_size = 4096;
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(void) mca_base_component_var_register(&mca_fbtl_posix_component.fbtlm_version,
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"max_gap_size", "Maximum average gap size between two blocks in an iovec for data sieving. "
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"An average gap size larger than this parameter will disable data sieving. Default: 4096 bytes. " ,
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MCA_BASE_VAR_TYPE_SIZE_T, NULL, 0, 0,
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OPAL_INFO_LVL_9,
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MCA_BASE_VAR_SCOPE_READONLY,
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&mca_fbtl_posix_max_gap_size );
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mca_fbtl_posix_max_tmpbuf_size = 67108864;
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(void) mca_base_component_var_register(&mca_fbtl_posix_component.fbtlm_version,
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"max_tmpbuf_size", "Maximum size of the temporary buffer used for data sieving in bytes. "
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"Default: 67108864 (64MB). " ,
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MCA_BASE_VAR_TYPE_SIZE_T, NULL, 0, 0,
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OPAL_INFO_LVL_9,
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MCA_BASE_VAR_SCOPE_READONLY,
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&mca_fbtl_posix_max_tmpbuf_size );
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mca_fbtl_posix_read_datasieving = true;
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(void) mca_base_component_var_register(&mca_fbtl_posix_component.fbtlm_version,
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"read_datasieving", "Parameter indicating whether to perform data sieving for read operations. "
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"Default: true.",
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MCA_BASE_VAR_TYPE_BOOL, NULL, 0, 0,
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OPAL_INFO_LVL_9,
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MCA_BASE_VAR_SCOPE_READONLY,
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&mca_fbtl_posix_read_datasieving );
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mca_fbtl_posix_write_datasieving = true;
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(void) mca_base_component_var_register(&mca_fbtl_posix_component.fbtlm_version,
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"write_datasieving", "Parameter indicating whether to perform data sieving for write operations. "
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"Default: true.",
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MCA_BASE_VAR_TYPE_BOOL, NULL, 0, 0,
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OPAL_INFO_LVL_9,
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MCA_BASE_VAR_SCOPE_READONLY,
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&mca_fbtl_posix_write_datasieving );
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return OMPI_SUCCESS;
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}
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