f7fc19a2ca
1. new functionality in the pls base to check for reusable daemons and launch upon them 2. an extension of the odls API to allow each odls component to build a notify message with the "correct" data in it for adding processes to the local daemon. This means that the odls now opens components on the HNP as well as on daemons - but that's the price of allowing so much flexibility. Only the default odls has this functionality enabled - the others just return NOT_IMPLEMENTED 3. addition of a new command line option "--reuse-daemons" to orterun. The default, for now, is to NOT reuse daemons. Once we have more time to test this capability, we may choose to reverse the default. For one thing, we probably want to investigate the tradeoffs in start time for comm_spawn'd processes that reuse daemons versus launch their own. On some systems, though, having another daemon show up can cause problems - so they may want to set the default as "reuse". This is ONLY enabled for rsh launch, at the moment. The code needing to be added to each launcher is about three lines long, so I'll be doing that as I get access to machines I can test it on. This commit was SVN r12608.
92 строки
2.7 KiB
C
92 строки
2.7 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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* $COPYRIGHT$
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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 "orte_config.h"
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#include "orte/orte_constants.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 "orte/mca/pls/pls.h"
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#include "orte/mca/pls/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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* module's public mca_base_module_t struct.
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*/
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#include "orte/mca/pls/base/static-components.h"
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/*
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* Global variables
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*/
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orte_pls_base_t orte_pls_base;
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/*
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* The default module
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*/
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orte_pls_base_module_t orte_pls;
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/**
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* Function for finding and opening either all MCA modules, or the one
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* that was specifically requested via a MCA parameter.
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*/
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int orte_pls_base_open(void)
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{
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int value;
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/* Debugging / verbose output. Always have stream open, with
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verbose set by the mca open system... */
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orte_pls_base.pls_output = opal_output_open(NULL);
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/* init selected to be false */
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orte_pls_base.selected = false;
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/* initialize the condition variables for orted comm */
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OBJ_CONSTRUCT(&orte_pls_base.orted_cmd_lock, opal_mutex_t);
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OBJ_CONSTRUCT(&orte_pls_base.orted_cmd_cond, opal_condition_t);
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/* check for reuse of daemons */
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mca_base_param_reg_int_name("pls", "base_reuse_daemons",
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"If nonzero, reuse daemons to launch dynamically spawned processes. If zero, do not reuse daemons (default)",
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false, false, (int)false, &value);
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if (false == value) {
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orte_pls_base.reuse_daemons = false;
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} else {
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orte_pls_base.reuse_daemons = true;
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}
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/* Open up all the components that we can find */
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if (ORTE_SUCCESS !=
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mca_base_components_open("pls", orte_pls_base.pls_output,
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mca_pls_base_static_components,
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&orte_pls_base.available_components, true)) {
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return ORTE_ERROR;
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}
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/* All done */
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return ORTE_SUCCESS;
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}
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