382 строки
16 KiB
C
382 строки
16 KiB
C
/*
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* Copyright (c) 2004-2008 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) 2004-2006 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) 2007-2011 Los Alamos National Security, LLC. All rights
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* reserved.
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* Copyright (c) 2008-2009 Sun Microsystems, Inc. All rights reserved.
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* Copyright (c) 2010 Oracle and/or its affiliates. All rights
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* reserved.
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* Copyright (c) 2009 Cisco Systems, Inc. All rights reserved.
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* Copyright (c) 2011 IBM Corporation. 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 "orte_config.h"
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#include "orte/constants.h"
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#include <stdlib.h>
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#ifdef HAVE_UNISTD_H
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#include <unistd.h>
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#endif
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#include <ctype.h>
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#include "opal/util/opal_environ.h"
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#include "opal/util/output.h"
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#include "opal/util/argv.h"
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#include "opal/util/path.h"
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#include "orte/util/name_fns.h"
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#include "orte/runtime/orte_globals.h"
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#include "orte/util/show_help.h"
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#include "orte/mca/plm/plm.h"
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#include "orte/mca/plm/base/plm_private.h"
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#include "orte/mca/plm/rsh/plm_rsh.h"
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/*
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* Public string showing the plm ompi_rsh component version number
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*/
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const char *mca_plm_rsh_component_version_string =
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"Open MPI rsh plm MCA component version " ORTE_VERSION;
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static int rsh_component_register(void);
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static int rsh_component_open(void);
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static int rsh_component_query(mca_base_module_t **module, int *priority);
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static int rsh_component_close(void);
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static int rsh_launch_agent_lookup(const char *agent_list, char *path);
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/* Local variables */
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static char *mca_plm_rsh_delay_string = NULL;
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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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orte_plm_rsh_component_t mca_plm_rsh_component = {
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{
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/* First, the mca_component_t struct containing meta information
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about the component itself */
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{
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ORTE_PLM_BASE_VERSION_2_0_0,
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/* Component name and version */
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"rsh",
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ORTE_MAJOR_VERSION,
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ORTE_MINOR_VERSION,
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ORTE_RELEASE_VERSION,
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/* Component open and close functions */
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rsh_component_open,
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rsh_component_close,
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rsh_component_query,
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rsh_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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}
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};
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static int rsh_component_register(void)
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{
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mca_base_component_t *c = &mca_plm_rsh_component.super.base_version;
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int var_id;
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mca_plm_rsh_component.num_concurrent = 128;
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(void) mca_base_component_var_register (c, "num_concurrent",
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"How many plm_rsh_agent instances to invoke concurrently (must be > 0)",
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MCA_BASE_VAR_TYPE_INT, 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_plm_rsh_component.num_concurrent);
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mca_plm_rsh_component.force_rsh = false;
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(void) mca_base_component_var_register (c, "force_rsh", "Force the launcher to always use rsh",
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MCA_BASE_VAR_TYPE_BOOL, 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_plm_rsh_component.force_rsh);
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mca_plm_rsh_component.disable_qrsh = false;
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(void) mca_base_component_var_register (c, "disable_qrsh",
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"Disable the launcher to use qrsh when under the Grid Engine parallel environment",
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MCA_BASE_VAR_TYPE_BOOL, 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_plm_rsh_component.disable_qrsh);
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mca_plm_rsh_component.daemonize_qrsh = false;
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(void) mca_base_component_var_register (c, "daemonize_qrsh",
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"Daemonize the orted under the Grid Engine parallel environment",
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MCA_BASE_VAR_TYPE_BOOL, 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_plm_rsh_component.daemonize_qrsh);
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mca_plm_rsh_component.disable_llspawn = false;
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(void) mca_base_component_var_register (c, "disable_llspawn",
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"Disable the use of llspawn when under the LoadLeveler environment",
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MCA_BASE_VAR_TYPE_BOOL, 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_plm_rsh_component.disable_llspawn);
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mca_plm_rsh_component.daemonize_llspawn = false;
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(void) mca_base_component_var_register (c, "daemonize_llspawn",
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"Daemonize the orted when under the LoadLeveler environment",
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MCA_BASE_VAR_TYPE_BOOL, 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_plm_rsh_component.daemonize_llspawn);
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mca_plm_rsh_component.priority = 10;
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(void) mca_base_component_var_register (c, "priority", "Priority of the rsh plm component",
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MCA_BASE_VAR_TYPE_INT, 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_plm_rsh_component.priority);
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mca_plm_rsh_delay_string = NULL;
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(void) mca_base_component_var_register (c, "delay",
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"Delay between invocations of the remote agent (sec[:usec])",
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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_plm_rsh_delay_string);
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mca_plm_rsh_component.no_tree_spawn = false;
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(void) mca_base_component_var_register (c, "no_tree_spawn",
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"If set to true, do not launch via a tree-based topology",
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MCA_BASE_VAR_TYPE_BOOL, 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_plm_rsh_component.no_tree_spawn);
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/* local rsh/ssh launch agent */
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mca_plm_rsh_component.agent = "ssh : rsh";
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var_id = mca_base_component_var_register (c, "agent",
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"The command used to launch executables on remote nodes (typically either \"ssh\" or \"rsh\")",
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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_plm_rsh_component.agent);
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(void) mca_base_var_register_synonym (var_id, "orte", "pls", NULL, "rsh_agent", MCA_BASE_VAR_SYN_FLAG_DEPRECATED);
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(void) mca_base_var_register_synonym (var_id, "orte", "orte", NULL, "rsh_agent", MCA_BASE_VAR_SYN_FLAG_DEPRECATED);
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mca_plm_rsh_component.assume_same_shell = true;
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var_id = mca_base_component_var_register (c, "assume_same_shell",
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"If set to true, assume that the shell on the remote node is the same as the shell on the local node. Otherwise, probe for what the remote shell [default: 1]",
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MCA_BASE_VAR_TYPE_BOOL, 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_plm_rsh_component.assume_same_shell);
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/* XXX -- var_conversion -- Why does this component register orte_assume_same_shell? Components should ONLY register THEIR OWN variables. */
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(void) mca_base_var_register_synonym (var_id, "orte", "orte", NULL, "assume_same_shell", 0);
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mca_plm_rsh_component.pass_environ_mca_params = true;
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(void) mca_base_component_var_register (c, "pass_environ_mca_params",
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"If set to false, do not include mca params from the environment on the orted cmd line",
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MCA_BASE_VAR_TYPE_BOOL, 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_plm_rsh_component.pass_environ_mca_params);
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return ORTE_SUCCESS;
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}
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static int rsh_component_open(void)
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{
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char *ctmp;
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/* initialize globals */
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mca_plm_rsh_component.using_qrsh = false;
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mca_plm_rsh_component.using_llspawn = false;
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/* lookup parameters */
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if (mca_plm_rsh_component.num_concurrent <= 0) {
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orte_show_help("help-plm-rsh.txt", "concurrency-less-than-zero",
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true, mca_plm_rsh_component.num_concurrent);
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mca_plm_rsh_component.num_concurrent = 1;
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}
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if (NULL != mca_plm_rsh_delay_string) {
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mca_plm_rsh_component.delay.tv_sec = strtol(mca_plm_rsh_delay_string, &ctmp, 10);
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if (ctmp == mca_plm_rsh_delay_string) {
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mca_plm_rsh_component.delay.tv_sec = 0;
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}
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if (':' == ctmp[0]) {
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mca_plm_rsh_component.delay.tv_nsec = 1000 * strtol (ctmp + 1, NULL, 10);
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}
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}
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return ORTE_SUCCESS;
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}
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static int rsh_component_query(mca_base_module_t **module, int *priority)
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{
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char *tmp;
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/* Check if we are under Grid Engine parallel environment by looking at several
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* environment variables. If so, setup the path and argv[0]. */
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if (!mca_plm_rsh_component.disable_qrsh &&
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NULL != getenv("SGE_ROOT") && NULL != getenv("ARC") &&
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NULL != getenv("PE_HOSTFILE") && NULL != getenv("JOB_ID")) {
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/* setup the search path for qrsh */
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asprintf(&tmp, "%s/bin/%s", getenv("SGE_ROOT"), getenv("ARC"));
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/* see if the agent is available */
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if (ORTE_SUCCESS != rsh_launch_agent_lookup("qrsh", tmp)) {
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/* can't be SGE */
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opal_output_verbose(1, orte_plm_base_framework.framework_output,
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"%s plm:rsh: unable to be used: SGE indicated but cannot find path "
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"or execution permissions not set for launching agent qrsh",
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ORTE_NAME_PRINT(ORTE_PROC_MY_NAME));
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free(tmp);
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*module = NULL;
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return ORTE_ERROR;
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}
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free(tmp);
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mca_plm_rsh_component.using_qrsh = true;
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/* no tree spawn allowed under qrsh */
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mca_plm_rsh_component.no_tree_spawn = true;
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goto success;
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} else if (!mca_plm_rsh_component.disable_llspawn &&
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NULL != getenv("LOADL_STEP_ID")) {
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/* We are running as a LOADLEVELER job.
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Search for llspawn in the users PATH */
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if (ORTE_SUCCESS != rsh_launch_agent_lookup("llspawn", NULL)) {
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opal_output_verbose(1, orte_plm_base_framework.framework_output,
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"%s plm:rsh: unable to be used: LoadLeveler "
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"indicated but cannot find path or execution "
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"permissions not set for launching agent llspawn",
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ORTE_NAME_PRINT(ORTE_PROC_MY_NAME));
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*module = NULL;
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return ORTE_ERROR;
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}
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mca_plm_rsh_component.using_llspawn = true;
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goto success;
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}
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/* if this isn't an Grid Engine or LoadLeveler environment,
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see if MCA-specified agent (default: ssh:rsh) is available */
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if (ORTE_SUCCESS != rsh_launch_agent_lookup(NULL, NULL)) {
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/* this isn't an error - we just cannot be selected */
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OPAL_OUTPUT_VERBOSE((1, orte_plm_base_framework.framework_output,
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"%s plm:rsh: unable to be used: cannot find path "
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"for launching agent \"%s\"\n",
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ORTE_NAME_PRINT(ORTE_PROC_MY_NAME),
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mca_plm_rsh_component.agent));
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*module = NULL;
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return ORTE_ERROR;
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}
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success:
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/* we are good - make ourselves available */
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*priority = mca_plm_rsh_component.priority;
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*module = (mca_base_module_t *) &orte_plm_rsh_module;
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return ORTE_SUCCESS;
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}
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static int rsh_component_close(void)
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{
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return ORTE_SUCCESS;
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}
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/*
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* Take a colon-delimited list of agents and locate the first one that
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* we are able to find in the PATH. Split that one into argv and
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* return it. If nothing found, then return NULL.
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*/
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char **orte_plm_rsh_search(const char* agent_list, const char *path)
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{
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int i, j;
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char *line, **lines;
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char **tokens, *tmp;
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char cwd[OPAL_PATH_MAX];
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if (NULL == path) {
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getcwd(cwd, OPAL_PATH_MAX);
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} else {
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strncpy(cwd, path, OPAL_PATH_MAX);
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}
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if (NULL == agent_list) {
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lines = opal_argv_split(mca_plm_rsh_component.agent, ':');
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} else {
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lines = opal_argv_split(agent_list, ':');
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}
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for (i = 0; NULL != lines[i]; ++i) {
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line = lines[i];
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/* Trim whitespace at the beginning and end of the line */
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for (j = 0; '\0' != line[j] && isspace(line[j]); ++line) {
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continue;
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}
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for (j = strlen(line) - 2; j > 0 && isspace(line[j]); ++j) {
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line[j] = '\0';
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}
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if (strlen(line) <= 0) {
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continue;
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}
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/* Split it */
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tokens = opal_argv_split(line, ' ');
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/* Look for the first token in the PATH */
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tmp = opal_path_findv(tokens[0], X_OK, environ, cwd);
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if (NULL != tmp) {
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free(tokens[0]);
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tokens[0] = tmp;
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opal_argv_free(lines);
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return tokens;
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}
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/* Didn't find it */
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opal_argv_free(tokens);
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}
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/* Doh -- didn't find anything */
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opal_argv_free(lines);
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return NULL;
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}
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static int rsh_launch_agent_lookup(const char *agent_list, char *path)
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{
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char **tmp;
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OPAL_OUTPUT_VERBOSE((5, orte_plm_base_framework.framework_output,
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"%s plm:rsh_lookup on agent %s path %s",
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ORTE_NAME_PRINT(ORTE_PROC_MY_NAME),
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(NULL == agent_list) ? mca_plm_rsh_component.agent : agent_list,
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(NULL == path) ? "NULL" : path));
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if (NULL == (tmp = orte_plm_rsh_search(agent_list, path))) {
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return ORTE_ERR_NOT_FOUND;
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}
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/* if we got here, then one of the given agents could be found */
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opal_argv_free(tmp);
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return ORTE_SUCCESS;
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}
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