fceabb2498
This is a fairly intrusive change, but outside of the moving of opal/event to opal/mca/event, the only changes involved (a) changing all calls to opal_event functions to reflect the new framework instead, and (b) ensuring that all opal_event_t objects are properly constructed since they are now true opal_objects. Note: Shiqing has just returned from vacation and has not yet had a chance to complete the Windows integration. Thus, this commit almost certainly breaks Windows support on the trunk. However, I want this to have a chance to soak for as long as possible before I become less available a week from today (going to be at a class for 5 days, and thus will only be sparingly available) so we can find and fix any problems. Biggest change is moving the libevent code from opal/event to a new opal/mca/event framework. This was done to make it much easier to update libevent in the future. New versions can be inserted as a new component and tested in parallel with the current version until validated, then we can remove the earlier version if we so choose. This is a statically built framework ala installdirs, so only one component will build at a time. There is no selection logic - the sole compiled component simply loads its function pointers into the opal_event struct. I have gone thru the code base and converted all the libevent calls I could find. However, I cannot compile nor test every environment. It is therefore quite likely that errors remain in the system. Please keep an eye open for two things: 1. compile-time errors: these will be obvious as calls to the old functions (e.g., opal_evtimer_new) must be replaced by the new framework APIs (e.g., opal_event.evtimer_new) 2. run-time errors: these will likely show up as segfaults due to missing constructors on opal_event_t objects. It appears that it became a typical practice for people to "init" an opal_event_t by simply using memset to zero it out. This will no longer work - you must either OBJ_NEW or OBJ_CONSTRUCT an opal_event_t. I tried to catch these cases, but may have missed some. Believe me, you'll know when you hit it. There is also the issue of the new libevent "no recursion" behavior. As I described on a recent email, we will have to discuss this and figure out what, if anything, we need to do. This commit was SVN r23925.
128 строки
4.6 KiB
C
128 строки
4.6 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) 2006 Los Alamos National Security, LLC. All rights
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* reserved.
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* Copyright (c) 2008-2010 Cisco Systems, Inc. All rights reserved.
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* Copyright (c) 2009 Oak Ridge National Labs. 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 "opal_config.h"
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#include <time.h>
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#ifdef HAVE_SIGNAL_H
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#include <signal.h>
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#endif
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#include "opal/constants.h"
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#include "opal/runtime/opal.h"
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#include "opal/datatype/opal_datatype.h"
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#include "opal/mca/base/mca_base_param.h"
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#include "opal/threads/mutex.h"
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#include "opal/threads/threads.h"
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#include "opal/mca/paffinity/base/base.h"
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int opal_register_params(void)
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{
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int ret;
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/*
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* This string is going to be used in opal/util/stacktrace.c
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*/
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{
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char *string = NULL;
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int j;
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int signals[] = {
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#ifdef SIGABRT
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SIGABRT,
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#endif
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#ifdef SIGBUS
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SIGBUS,
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#endif
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#ifdef SIGFPE
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SIGFPE,
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#endif
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#ifdef SIGSEGV
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SIGSEGV,
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#endif
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-1
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};
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for (j = 0 ; signals[j] != -1 ; ++j) {
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if (j == 0) {
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asprintf(&string, "%d", signals[j]);
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} else {
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char *tmp;
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asprintf(&tmp, "%s,%d", string, signals[j]);
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free(string);
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string = tmp;
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}
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}
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mca_base_param_reg_string_name("opal", "signal",
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"Comma-delimited list of integer signal numbers to Open MPI to attempt to intercept. Upon receipt of the intercepted signal, Open MPI will display a stack trace and abort. Open MPI will *not* replace signals if handlers are already installed by the time MPI_INIT is invoked. Optionally append \":complain\" to any signal number in the comma-delimited list to make Open MPI complain if it detects another signal handler (and therefore does not insert its own).",
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false, false, string, NULL);
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free(string);
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}
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{
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int j;
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mca_base_param_reg_int_name("opal", "profile",
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"Set to non-zero to profile component selections",
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false, false, (int)false, &j);
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opal_profile = OPAL_INT_TO_BOOL(j);
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mca_base_param_reg_string_name("opal", "profile_file",
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"Name of the file containing the cluster configuration information",
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false, false, NULL, &opal_profile_file);
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}
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#if OPAL_ENABLE_DEBUG
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mca_base_param_reg_int_name("opal", "progress_debug",
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"Set to non-zero to debug progress engine features",
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false, false, 0, NULL);
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mca_base_param_reg_int_name("opal", "event_debug",
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"Set to non-zero to debug event library",
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false, false, 0, NULL);
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{
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int value;
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mca_base_param_reg_int_name("opal", "debug_locks",
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"Debug mutex usage within Open MPI. On a "
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"non-threaded build, this enables integer counters and "
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"warning messages when double-locks are detected.",
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false, false, 0, &value);
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if (value) opal_mutex_check_locks = true;
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mca_base_param_reg_int_name("opal", "debug_threads",
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"Debug thread usage within OPAL. Reports out "
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"when threads are acquired and released.",
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false, false, 0, &value);
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if (value) opal_debug_threads = true;
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}
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#endif
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/* The ddt engine has a few parameters */
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ret = opal_datatype_register_params();
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if (OPAL_SUCCESS != ret) {
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return ret;
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}
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/* Paffinity base also has some parameters */
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return opal_paffinity_base_register_params();
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}
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