4f3a11b4db
A bunch of fixes from the /tmp/iof-fixes branch that fix up ''some'' (but not ''all'') of the problems that we have seen with iof: * Reading very large files via stdin redirected to orteun (Sun saw this) * Reading a little bit of a large file redirected to orterun's stdin and then either closing stdin or exiting the process The Big Change was to make the proxy iof (the one running in non-HNP orteds) send back a "I'm closing the stream" ACK back to the service iof. This tells the HNP that there will be nothing more coming from that peer, and therefore the iof forward should be removed. Many other minor cleanups/fixes, terminology changes, and documentation additions are included in this commit as well. However, there are still some pretty big outstanding issues with IOF that are not addressed either by #967 or this commit. A few examples: * IOF was designed to allow multiple subscribers to a single stream. We're not entirely sure that this works (for one thing, there is nothing in the ORTE/OMPI code base that uses this functionality). * There are also resources leaked when processes/jobs exit (per Ralph's first comment on this ticket). * There is no feedback to close orterun's stdin when all subscribers to the corresponding stream have closed stdin. This commit was SVN r14967. The following Trac tickets were found above: Ticket 967 --> https://svn.open-mpi.org/trac/ompi/ticket/967
133 строки
3.6 KiB
C
133 строки
3.6 KiB
C
/*
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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) 2004-2006 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 Cisco, 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 "orte_config.h"
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#include "orte/util/proc_info.h"
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#include "opal/util/output.h"
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#include "opal/runtime/opal_progress.h"
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#include "orte/mca/rml/rml.h"
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#include "opal/mca/base/base.h"
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#include "opal/mca/base/mca_base_param.h"
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#include "orte/mca/iof/base/base.h"
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#include "orte/mca/iof/base/iof_base_endpoint.h"
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#include "iof_proxy.h"
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#include "iof_proxy_svc.h"
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/*
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* Local functions
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*/
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static int orte_iof_proxy_open(void);
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static int orte_iof_proxy_close(void);
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static orte_iof_base_module_t* orte_iof_proxy_init(
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int* priority,
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bool *allow_multi_user_threads,
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bool *have_hidden_threads);
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/*
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* Local variables
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*/
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static bool initialized = false;
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orte_iof_proxy_component_t mca_iof_proxy_component = {
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{
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/* First, the mca_base_component_t struct containing meta
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information about the component itself */
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{
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/* Indicate that we are a iof v1.0.0 component (which also
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implies a specific MCA version) */
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ORTE_IOF_BASE_VERSION_1_0_0,
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"proxy", /* MCA component name */
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ORTE_MAJOR_VERSION, /* MCA component major version */
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ORTE_MINOR_VERSION, /* MCA component minor version */
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ORTE_RELEASE_VERSION, /* MCA component release version */
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orte_iof_proxy_open, /* component open */
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orte_iof_proxy_close /* component close */
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},
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/* Next the MCA v1.0.0 component meta data */
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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_iof_proxy_init
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}
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};
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/**
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* component open/close/init function
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*/
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static int orte_iof_proxy_open(void)
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{
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/* Nothing to do */
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return ORTE_SUCCESS;
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}
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static orte_iof_base_module_t*
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orte_iof_proxy_init(int* priority, bool *allow_multi_user_threads, bool *have_hidden_threads)
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{
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int rc;
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if(orte_process_info.seed == true)
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return NULL;
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*priority = 1;
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*allow_multi_user_threads = true;
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*have_hidden_threads = false;
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/* post a non-blocking, persistent RML receive to get messages
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from the svc IOF component */
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mca_iof_proxy_component.proxy_iov[0].iov_base = NULL;
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mca_iof_proxy_component.proxy_iov[0].iov_len = 0;
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rc = orte_rml.recv_nb(
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ORTE_NAME_WILDCARD,
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mca_iof_proxy_component.proxy_iov,
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1,
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ORTE_RML_TAG_IOF_SVC,
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ORTE_RML_ALLOC|ORTE_RML_PERSISTENT,
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orte_iof_proxy_svc_recv,
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NULL
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);
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if(rc < 0) {
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opal_output(orte_iof_base.iof_output,
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"orte_iof_proxy_init: unable to post non-blocking recv");
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return NULL;
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}
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initialized = true;
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return &orte_iof_proxy_module;
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}
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static int orte_iof_proxy_close(void)
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{
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int rc = ORTE_SUCCESS;
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if (initialized) {
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/* Cancel the RML receive */
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rc = orte_rml.recv_cancel(ORTE_NAME_WILDCARD, ORTE_RML_TAG_IOF_SVC);
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}
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return rc;
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}
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