cf377db823
Features: - Support for an override parameter file (openmpi-mca-param-override.conf). Variable values in this file can not be overridden by any file or environment value. - Support for boolean, unsigned, and unsigned long long variables. - Support for true/false values. - Support for enumerations on integer variables. - Support for MPIT scope, verbosity, and binding. - Support for command line source. - Support for setting variable source via the environment using OMPI_MCA_SOURCE_<var name>=source (either command or file:filename) - Cleaner API. - Support for variable groups (equivalent to MPIT categories). Notes: - Variables must be created with a backing store (char **, int *, or bool *) that must live at least as long as the variable. - Creating a variable with the MCA_BASE_VAR_FLAG_SETTABLE enables the use of mca_base_var_set_value() to change the value. - String values are duplicated when the variable is registered. It is up to the caller to free the original value if necessary. The new value will be freed by the mca_base_var system and must not be freed by the user. - Variables with constant scope may not be settable. - Variable groups (and all associated variables) are deregistered when the component is closed or the component repository item is freed. This prevents a segmentation fault from accessing a variable after its component is unloaded. - After some discussion we decided we should remove the automatic registration of component priority variables. Few component actually made use of this feature. - The enumerator interface was updated to be general enough to handle future uses of the interface. - The code to generate ompi_info output has been moved into the MCA variable system. See mca_base_var_dump(). opal: update core and components to mca_base_var system orte: update core and components to mca_base_var system ompi: update core and components to mca_base_var system This commit also modifies the rmaps framework. The following variables were moved from ppr and lama: rmaps_base_pernode, rmaps_base_n_pernode, rmaps_base_n_persocket. Both lama and ppr create synonyms for these variables. This commit was SVN r28236.
105 строки
3.0 KiB
C
105 строки
3.0 KiB
C
/*
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* Copyright (c) 2012-2013 Los Alamos National Security, Inc. 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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* 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 "opal_config.h"
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#include "opal/constants.h"
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#include "opal/mca/base/base.h"
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#include "opal/mca/db/db.h"
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#include "opal/mca/db/base/base.h"
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#include "db_print.h"
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extern opal_db_base_module_t opal_db_print_module;
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static int print_component_register(void);
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static int print_component_open(void);
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static int print_component_close(void);
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static int print_component_query(opal_db_base_module_t **module,
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int *store_priority,
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int *fetch_priority);
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static int print_component_register(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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opal_db_print_component_t mca_db_print_component = {
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{
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{
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OPAL_DB_BASE_VERSION_1_0_0,
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/* Component name and version */
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"print",
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OPAL_MAJOR_VERSION,
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OPAL_MINOR_VERSION,
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OPAL_RELEASE_VERSION,
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/* Component open and close functions */
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print_component_open,
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print_component_close,
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NULL,
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print_component_register
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},
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{
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/* The component is checkpoint ready */
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MCA_BASE_METADATA_PARAM_CHECKPOINT
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},
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print_component_query
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}
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};
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static int print_component_open(void)
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{
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return OPAL_SUCCESS;
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}
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/* this component is NEVER used for store or fetch */
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static int print_component_query(opal_db_base_module_t **module,
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int *store_priority,
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int *fetch_priority)
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{
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if (NULL == mca_db_print_component.filename) {
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*store_priority = 0;
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*fetch_priority = 0;
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*module = NULL;
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return OPAL_ERROR;
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}
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*store_priority = 0;
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*fetch_priority = 0;
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*module = &opal_db_print_module;
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return OPAL_SUCCESS;
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}
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static int print_component_close(void)
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{
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return OPAL_SUCCESS;
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}
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static int print_component_register(void)
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{
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mca_db_print_component.filename = NULL;
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(void) mca_base_component_var_register (&mca_db_print_component.super.base_version,
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"file", "Print to the indicated file (- => stdout, + => stderr)",
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MCA_BASE_VAR_TYPE_STRING, 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_db_print_component.filename);
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return OPAL_SUCCESS;
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}
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