127 строки
3.9 KiB
C
127 строки
3.9 KiB
C
/* -*- C -*-
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*
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* Copyright (c) 2004-2007 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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* $COPYRIGHT$
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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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/** @file:
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*
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* The Open MPI Name Server
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*
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* The Open MPI Name Server provides unique name ranges for processes
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* within the universe. Each universe will have one name server
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* running within the seed daemon. This is done to prevent the
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* inadvertent duplication of names.
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*/
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/*
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* includes
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*/
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#include "orte_config.h"
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#include "orte/constants.h"
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#include "opal/threads/mutex.h"
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#include "opal/class/opal_list.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/mca_base_param.h"
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#include "orte/util/proc_info.h"
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#include "orte/mca/errmgr/errmgr.h"
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#include "orte/mca/rml/rml.h"
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#include "grpcomm_exp.h"
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/* set the default xovers */
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#define XCAST_LINEAR_XOVER_DEFAULT 2
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#define XCAST_BINOMIAL_XOVER_DEFAULT 16
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/*
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* Struct of function pointers that need to be initialized
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*/
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orte_grpcomm_base_component_t mca_grpcomm_exp_component = {
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{
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ORTE_GRPCOMM_BASE_VERSION_2_0_0,
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"exp", /* MCA module name */
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ORTE_MAJOR_VERSION, /* MCA module major version */
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ORTE_MINOR_VERSION, /* MCA module minor version */
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ORTE_RELEASE_VERSION, /* MCA module release version */
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orte_grpcomm_exp_open, /* module open */
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orte_grpcomm_exp_close /* module close */
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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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orte_grpcomm_exp_init /* component init */
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};
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/*
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* instantiate globals needed within exp component
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*/
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orte_grpcomm_exp_globals_t orte_grpcomm_exp;
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/* Open the component */
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int orte_grpcomm_exp_open(void)
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{
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char *mode;
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mca_base_component_t *c = &mca_grpcomm_exp_component.grpcomm_version;
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int tmp;
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mca_base_param_reg_int(c, "xcast_linear_xover",
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"Number of daemons where use of linear xcast mode is to begin",
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false, false, XCAST_LINEAR_XOVER_DEFAULT, &tmp);
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orte_grpcomm_exp.xcast_linear_xover = tmp;
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mca_base_param_reg_int(c, "xcast_binomial_xover",
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"Number of daemons where use of binomial xcast mode is to begin",
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false, false, XCAST_BINOMIAL_XOVER_DEFAULT, &tmp);
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orte_grpcomm_exp.xcast_binomial_xover = tmp;
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mca_base_param_reg_string(c, "xcast_mode",
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"Select xcast mode (\"linear\" | \"binomial\" | \"direct\")",
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false, false, "none", &mode);
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if (0 == strcmp(mode, "binomial")) {
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orte_grpcomm_exp.xcast_binomial_xover = 0;
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orte_grpcomm_exp.xcast_linear_xover = 0;
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} else if (0 == strcmp(mode, "linear")) {
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orte_grpcomm_exp.xcast_linear_xover = 0;
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orte_grpcomm_exp.xcast_binomial_xover = INT_MAX;
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} else if (0 == strcmp(mode, "direct")) {
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orte_grpcomm_exp.xcast_binomial_xover = INT_MAX;
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orte_grpcomm_exp.xcast_linear_xover = INT_MAX;
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} else if (0 != strcmp(mode, "none")) {
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opal_output(0, "grpcomm_exp_xcast_mode: unknown option %s - using defaults", mode);
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}
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return ORTE_SUCCESS;
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}
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int orte_grpcomm_exp_close(void)
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{
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return ORTE_SUCCESS;
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}
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orte_grpcomm_base_module_t* orte_grpcomm_exp_init(int *priority)
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{
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/* only taken when specified */
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*priority = 0;
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return &orte_grpcomm_exp_module;
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}
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