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.
426 строки
14 KiB
C
426 строки
14 KiB
C
/*
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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 Sun Microsystems, 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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#include "ompi_config.h"
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#include <stdio.h>
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#include <string.h>
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#include <stdlib.h>
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#include "mpi.h"
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#include "opal/class/opal_list.h"
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#include "opal/util/argv.h"
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#include "opal/util/output.h"
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#include "opal/mca/mca.h"
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#include "opal/mca/base/base.h"
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#include "ompi/mca/io/io.h"
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#include "ompi/mca/io/base/base.h"
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/*
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* Local types
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*/
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struct avail_io_t {
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opal_list_item_t super;
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mca_io_base_version_t ai_version;
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int ai_priority;
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mca_io_base_components_t ai_component;
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struct mca_io_base_delete_t *ai_private_data;
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};
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typedef struct avail_io_t avail_io_t;
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/*
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* Local functions
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*/
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static opal_list_t *check_components(opal_list_t *components,
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char *filename, struct ompi_info_t *info,
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char **names, int num_names);
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static avail_io_t *check_one_component(const mca_base_component_t *component,
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char *filename, struct ompi_info_t *info);
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static avail_io_t *query(const mca_base_component_t *component,
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char *filename, struct ompi_info_t *info);
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static avail_io_t *query_2_0_0(const mca_io_base_component_2_0_0_t *io_component,
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char *filename, struct ompi_info_t *info);
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static void unquery(avail_io_t *avail, char *filename, struct ompi_info_t *info);
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static int delete_file(avail_io_t *avail, char *filename, struct ompi_info_t *info);
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/*
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* Stuff for the OBJ interface
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*/
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static OBJ_CLASS_INSTANCE(avail_io_t, opal_list_item_t, NULL, NULL);
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/*
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*/
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int mca_io_base_delete(char *filename, struct ompi_info_t *info)
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{
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int err, num_names;
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char **name_array;
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opal_list_t *selectable;
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opal_list_item_t *item;
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avail_io_t *avail, selected;
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const char **names_value, *names;
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/* Announce */
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opal_output_verbose(10, mca_io_base_output,
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"io:base:delete: deleting file: %s",
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filename);
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/* See if a set of component was requested by the MCA parameter.
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Don't check for error. */
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names_value = NULL;
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(void) mca_base_var_get_value(mca_io_base_param, &names_value, NULL, NULL);
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names = names_value ? names_value[0] : NULL;
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/* Compute the intersection of all of my available components with
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the components from all the other processes in this file */
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/* JMS CONTINUE HERE */
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/* See if there were any listed in the MCA parameter; parse them
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and check them all */
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err = OMPI_ERROR;
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if (NULL != names && 0 < strlen(names)) {
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name_array = opal_argv_split(names, ',');
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num_names = opal_argv_count(name_array);
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opal_output_verbose(10, mca_io_base_output,
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"io:base:delete: Checking specific modules: %s",
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names);
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selectable = check_components(&mca_io_base_components_available,
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filename, info, name_array, num_names);
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opal_argv_free(name_array);
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}
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/* Nope -- a specific [set of] component[s] was not requested. Go
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check them all. */
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else {
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opal_output_verbose(10, mca_io_base_output,
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"io:base:delete: Checking all available modules");
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selectable = check_components(&mca_io_base_components_available,
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filename, info, NULL, 0);
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}
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/* Upon return from the above, the modules list will contain the
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list of modules that returned (priority >= 0). If we have no
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io modules available, it's an error */
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if (NULL == selectable) {
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/* There's no modules available. Doh! */
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/* show_help */
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return OMPI_ERROR;
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}
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/* Do some kind of collective operation to find a module that
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everyone has available */
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#if 1
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/* For the moment, just take the top module off the list */
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/* MSC actually take the buttom */
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item = opal_list_remove_last(selectable);
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avail = (avail_io_t *) item;
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selected = *avail;
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OBJ_RELEASE(avail);
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#else
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/* JMS CONTINUE HERE */
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#endif
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/* Everything left in the selectable list is therefore unwanted,
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and we call their unquery() method (because they all had
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query() invoked, but will never have init() invoked in this
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scope). */
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for (item = opal_list_remove_first(selectable); item != NULL;
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item = opal_list_remove_first(selectable)) {
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avail = (avail_io_t *) item;
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unquery(avail, filename, info);
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OBJ_RELEASE(item);
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}
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OBJ_RELEASE(selectable);
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/* Finally -- delete the file with the selected component */
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if (OMPI_SUCCESS != (err = delete_file(&selected, filename, info))) {
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return err;
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}
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/* Announce the winner */
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opal_output_verbose(10, mca_io_base_output,
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"io:base:delete: Selected io component %s",
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selected.ai_component.v2_0_0.io_version.mca_component_name);
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return OMPI_SUCCESS;
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}
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/*
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* For each module in the list, if it is in the list of names (or the
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* list of names is NULL), then check and see if it wants to run, and
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* do the resulting priority comparison. Make a list of components to
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* be only those who returned that they want to run, and put them in
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* priority order.
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*/
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static opal_list_t *check_components(opal_list_t *components,
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char *filename, struct ompi_info_t *info,
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char **names, int num_names)
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{
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int i;
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const mca_base_component_t *component;
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opal_list_item_t *item, *item2;
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bool want_to_check;
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opal_list_t *selectable;
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avail_io_t *avail, *avail2;
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/* Make a list of the components that query successfully */
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selectable = OBJ_NEW(opal_list_t);
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/* Scan through the list of components. This nested loop is
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O(N^2), but we should never have too many components and/or
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names, so this *hopefully* shouldn't matter... */
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for (item = opal_list_get_first(components);
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item != opal_list_get_end(components);
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item = opal_list_get_next(item)) {
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component = ((mca_base_component_priority_list_item_t *)
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item)->super.cli_component;
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/* If we have a list of names, scan through it */
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if (0 == num_names) {
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want_to_check = true;
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} else {
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want_to_check = false;
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for (i = 0; i < num_names; ++i) {
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if (0 == strcmp(names[i], component->mca_component_name)) {
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want_to_check = true;
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}
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}
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}
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/* If we determined that we want to check this component, then
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do so */
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if (want_to_check) {
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avail = check_one_component(component, filename, info);
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if (NULL != avail) {
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/* Put this item on the list in priority order
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(highest priority first). Should it go first? */
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/* MSC actually put it Lowest priority first */
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for(item2 = opal_list_get_first(selectable);
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item2 != opal_list_get_end(selectable);
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item2 = opal_list_get_next(item2)) {
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avail2 = (avail_io_t*)item2;
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if(avail->ai_priority < avail2->ai_priority) {
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opal_list_insert_pos(selectable,
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item2, (opal_list_item_t*)avail);
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break;
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}
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}
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if(opal_list_get_end(selectable) == item2) {
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opal_list_append(selectable, (opal_list_item_t*)avail);
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}
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/*
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item2 = opal_list_get_first(selectable);
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avail2 = (avail_io_t *) item2;
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if (opal_list_get_end(selectable) == item2 ||
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avail->ai_priority > avail2->ai_priority) {
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opal_list_prepend(selectable, (opal_list_item_t*) avail);
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} else {
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for (i = 1; item2 != opal_list_get_end(selectable);
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item2 = opal_list_get_next(selectable), ++i) {
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avail2 = (avail_io_t *) item2;
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if (avail->ai_priority > avail2->ai_priority) {
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opal_list_insert(selectable,
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(opal_list_item_t *) avail, i);
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break;
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}
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}
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*/
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/* If we didn't find a place to put it in the
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list, then append it (because it has the lowest
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priority found so far) */
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/*
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if (opal_list_get_end(selectable) == item2) {
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opal_list_append(selectable,
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(opal_list_item_t *) avail);
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}
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}
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*/
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}
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}
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}
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/* If we didn't find any available components, return an error */
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if (0 == opal_list_get_size(selectable)) {
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OBJ_RELEASE(selectable);
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return NULL;
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}
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/* All done */
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return selectable;
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}
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/*
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* Check a single component
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*/
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static avail_io_t *check_one_component(const mca_base_component_t *component,
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char *filename, struct ompi_info_t *info)
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{
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avail_io_t *avail;
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avail = query(component, filename, info);
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if (NULL != avail) {
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avail->ai_priority = (avail->ai_priority < 100) ?
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avail->ai_priority : 100;
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avail->ai_priority = (avail->ai_priority < 0) ?
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0 : avail->ai_priority;
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opal_output_verbose(10, mca_io_base_output,
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"io:base:delete: component available: %s, priority: %d",
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component->mca_component_name,
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avail->ai_priority);
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} else {
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opal_output_verbose(10, mca_io_base_output,
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"io:base:delete: component not available: %s",
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component->mca_component_name);
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}
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return avail;
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}
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/**************************************************************************
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* Query functions
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**************************************************************************/
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/*
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* Take any version of a io module, query it, and return the right
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* module struct
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*/
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static avail_io_t *query(const mca_base_component_t *component,
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char *filename, struct ompi_info_t *info)
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{
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const mca_io_base_component_2_0_0_t *ioc_200;
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/* io v2.0.0 */
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if (2 == component->mca_major_version &&
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0 == component->mca_minor_version &&
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0 == component->mca_release_version) {
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ioc_200 = (mca_io_base_component_2_0_0_t *) component;
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return query_2_0_0(ioc_200, filename, info);
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}
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/* Unknown io API version -- return error */
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return NULL;
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}
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static avail_io_t *query_2_0_0(const mca_io_base_component_2_0_0_t *component,
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char *filename, struct ompi_info_t *info)
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{
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bool usable;
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int priority, ret;
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avail_io_t *avail;
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struct mca_io_base_delete_t *private_data;
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/* Query v2.0.0 */
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avail = NULL;
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private_data = NULL;
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usable = false;
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ret = component->io_delete_query(filename, info, &private_data, &usable,
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&priority);
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if (OMPI_SUCCESS == ret && usable) {
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avail = OBJ_NEW(avail_io_t);
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avail->ai_version = MCA_IO_BASE_V_2_0_0;
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avail->ai_priority = priority;
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avail->ai_component.v2_0_0 = *component;
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avail->ai_private_data = private_data;
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}
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return avail;
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}
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/**************************************************************************
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* Unquery functions
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**************************************************************************/
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static void unquery(avail_io_t *avail, char *filename, struct ompi_info_t *info)
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{
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const mca_io_base_component_2_0_0_t *ioc_200;
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switch(avail->ai_version) {
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case MCA_IO_BASE_V_2_0_0:
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ioc_200 = &(avail->ai_component.v2_0_0);
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if (NULL != ioc_200->io_delete_unquery) {
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ioc_200->io_delete_unquery(filename, info, avail->ai_private_data);
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}
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break;
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default:
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break;
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}
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}
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/**************************************************************************
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* File delete functions
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**************************************************************************/
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/*
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* Invoke the component's delete function
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*/
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static int delete_file(avail_io_t *avail, char *filename, struct ompi_info_t *info)
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{
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const mca_io_base_component_2_0_0_t *ioc_200;
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switch(avail->ai_version) {
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case MCA_IO_BASE_V_2_0_0:
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ioc_200 = &(avail->ai_component.v2_0_0);
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return ioc_200->io_delete_select(filename, info,
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avail->ai_private_data);
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break;
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default:
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return OMPI_ERROR;
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break;
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}
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/* No way to reach here */
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}
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