109 строки
3.6 KiB
C
109 строки
3.6 KiB
C
/*
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* Copyright (c) 2014 Mellanox Technologies, Inc.
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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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#include "oshmem_config.h"
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#include "opal/constants.h"
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#include "opal/util/output.h"
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#include "oshmem/mca/mca.h"
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#include "opal/mca/base/base.h"
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#include "opal/mca/base/mca_base_var.h"
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#include "oshmem/util/oshmem_util.h"
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#include "oshmem/mca/sshmem/sshmem.h"
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#include "oshmem/mca/sshmem/base/base.h"
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/*
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* The following file was created by configure. It contains extern
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* statements and the definition of an array of pointers to each
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* component's public mca_base_component_t struct.
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*/
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#include "oshmem/mca/sshmem/base/static-components.h"
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/**
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* globals
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*/
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/**
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* if 32 bit we set sshmem_base_start_adress to 0
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* to let OS allocate segment automatically
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*/
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#if UINTPTR_MAX == 0xFFFFFFFF
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void *mca_sshmem_base_start_address = (void*)0;
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#else
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void* mca_sshmem_base_start_address = (void*)0xFF000000;
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#endif
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char * mca_sshmem_base_backing_file_dir = NULL;
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/* ////////////////////////////////////////////////////////////////////////// */
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/**
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* Register some sshmem-wide MCA params
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*/
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static int
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mca_sshmem_base_register (mca_base_register_flag_t flags)
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{
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int index;
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index = mca_base_var_register("oshmem",
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"sshmem",
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"base",
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"start_address",
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"Specify base address for shared memory region",
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MCA_BASE_VAR_TYPE_UNSIGNED_LONG_LONG,
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NULL,
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0,
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MCA_BASE_VAR_FLAG_SETTABLE,
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OPAL_INFO_LVL_9,
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MCA_BASE_VAR_SCOPE_READONLY,
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&mca_sshmem_base_start_address);
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(void) mca_base_var_register_synonym(index, "oshmem", "memheap", "base",
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"start_address",
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MCA_BASE_VAR_SYN_FLAG_DEPRECATED);
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mca_sshmem_base_backing_file_dir = "/dev/shm";
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index = mca_base_var_register("oshmem",
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"sshmem",
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"base",
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"backing_file_dir",
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"Specifies where backing files will be created when "
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"mmap is used and shmem_mmap_anonymous set to 0.",
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MCA_BASE_VAR_TYPE_STRING,
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NULL,
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0,
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MCA_BASE_VAR_FLAG_SETTABLE,
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OPAL_INFO_LVL_9,
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MCA_BASE_VAR_SCOPE_READONLY,
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&mca_sshmem_base_backing_file_dir);
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return OSHMEM_SUCCESS;
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}
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static int mca_sshmem_base_open(mca_base_open_flag_t flags)
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{
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oshmem_framework_open_output(&oshmem_sshmem_base_framework);
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/* Open up all available components */
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if (OPAL_SUCCESS !=
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mca_base_framework_components_open(&oshmem_sshmem_base_framework, flags)) {
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return OSHMEM_ERROR;
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}
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return OSHMEM_SUCCESS;
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}
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/* Use the default open function */
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MCA_BASE_FRAMEWORK_DECLARE(oshmem, sshmem,
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"OSHMEM SSHMEM",
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mca_sshmem_base_register,
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mca_sshmem_base_open,
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mca_sshmem_base_close,
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mca_sshmem_base_static_components,
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MCA_BASE_FRAMEWORK_FLAG_DEFAULT);
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