225 строки
7.9 KiB
C
225 строки
7.9 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) 2004-2011 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) 2006-2011 Cisco Systems, Inc. All rights reserved.
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* Copyright (c) 2010-2011 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 "ompi_config.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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#ifdef HAVE_SYS_TYPES_H
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#include <sys/types.h>
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#endif
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#ifdef HAVE_SYS_PARAM_H
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#include <sys/param.h>
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#endif
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#ifdef HAVE_NETDB_H
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#include <netdb.h>
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#endif
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#include "opal/mca/backtrace/backtrace.h"
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#include "orte/util/proc_info.h"
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#include "orte/runtime/runtime.h"
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#include "orte/runtime/orte_globals.h"
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#include "orte/util/name_fns.h"
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#include "orte/util/show_help.h"
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#include "orte/mca/errmgr/errmgr.h"
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#include "ompi/communicator/communicator.h"
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#include "ompi/runtime/mpiruntime.h"
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#include "ompi/runtime/params.h"
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#include "ompi/debuggers/debuggers.h"
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#include "ompi/errhandler/errcode.h"
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static bool have_been_invoked = false;
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int
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ompi_mpi_abort(struct ompi_communicator_t* comm,
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int errcode,
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bool kill_remote_of_intercomm)
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{
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int count = 0, i, ret;
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char *msg, *host, hostname[MAXHOSTNAMELEN];
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pid_t pid = 0;
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orte_process_name_t *abort_procs;
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orte_std_cntr_t nabort_procs;
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/* Protection for recursive invocation */
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if (have_been_invoked) {
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return OMPI_SUCCESS;
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}
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have_been_invoked = true;
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/* If ORTE is initialized, use its nodename. Otherwise, call
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gethostname. */
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if (orte_initialized) {
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host = orte_process_info.nodename;
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} else {
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gethostname(hostname, sizeof(hostname));
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host = hostname;
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}
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pid = getpid();
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/* Should we print a stack trace? Not aggregated because they
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might be different on all processes. */
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if (ompi_mpi_abort_print_stack) {
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char **messages;
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int len, i;
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if (OMPI_SUCCESS == opal_backtrace_buffer(&messages, &len)) {
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for (i = 0; i < len; ++i) {
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fprintf(stderr, "[%s:%d] [%d] func:%s\n", host, (int) pid,
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i, messages[i]);
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fflush(stderr);
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}
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free(messages);
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} else {
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/* This will print an message if it's unable to print the
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backtrace, so we don't need an additional "else" clause
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if opal_backtrace_print() is not supported. */
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opal_backtrace_print(stderr);
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}
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}
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/* Notify the debugger that we're about to abort */
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if (errcode < 0 ||
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asprintf(&msg, "[%s:%d] aborting with MPI error %s%s",
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host, (int) pid, ompi_mpi_errnum_get_string(errcode),
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ompi_mpi_abort_print_stack ?
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" (stack trace available on stderr)" : "") < 0) {
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msg = NULL;
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}
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ompi_debugger_notify_abort(msg);
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if (NULL != msg) {
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free(msg);
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}
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/* Should we wait for a while before aborting? */
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if (0 != ompi_mpi_abort_delay) {
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if (ompi_mpi_abort_delay < 0) {
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fprintf(stderr ,"[%s:%d] Looping forever (MCA parameter mpi_abort_delay is < 0)\n",
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host, (int) pid);
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fflush(stderr);
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while (1) {
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sleep(5);
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}
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} else {
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fprintf(stderr, "[%s:%d] Delaying for %d seconds before aborting\n",
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host, (int) pid, ompi_mpi_abort_delay);
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do {
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sleep(1);
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} while (--ompi_mpi_abort_delay > 0);
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}
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}
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/* If OMPI isn't setup yet/any more, then don't even try killing
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everyone. Ditto for ORTE (e.g., ORTE may be initialized before
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MPI_INIT is over, but ompi_initialized will be false because
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communicators are not setup yet). Sorry, Charlie... */
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if (!orte_initialized || !ompi_mpi_initialized || ompi_mpi_finalized) {
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if (orte_show_help_is_available()) {
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orte_show_help("help-mpi-runtime.txt",
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"ompi mpi abort:cannot guarantee all killed",
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true,
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(ompi_mpi_finalized ?
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"After MPI_FINALIZE was invoked" :
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(ompi_mpi_init_started ?
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"Before MPI_INIT completed" :
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"Before MPI_INIT was invoked")),
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host, (int) pid);
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} else {
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fprintf(stderr, "[%s:%d] Local abort %s completed successfully; not able to aggregate error messages, and not able to guarantee that all other processes were killed!\n",
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host, (int) pid, ompi_mpi_finalized ?
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"after MPI_FINALIZE" : "before MPI_INIT");
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}
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exit(errcode);
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}
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/* abort local procs in the communicator. If the communicator is
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an intercommunicator AND the abort has explicitly requested
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that we abort the remote procs, then do that as well. */
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nabort_procs = ompi_comm_size(comm);
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if (kill_remote_of_intercomm) {
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/* ompi_comm_remote_size() returns 0 if not an intercomm, so
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this is cool */
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nabort_procs += ompi_comm_remote_size(comm);
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}
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abort_procs = (orte_process_name_t*)malloc(sizeof(orte_process_name_t) * nabort_procs);
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if (NULL == abort_procs) {
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/* quick clean orte and get out */
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orte_errmgr.abort(errcode, "Abort unable to malloc memory to kill procs");
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}
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/* put all the local procs in the abort list */
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for (i = 0 ; i < ompi_comm_size(comm) ; ++i) {
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if (OPAL_EQUAL != orte_util_compare_name_fields(ORTE_NS_CMP_ALL,
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&comm->c_local_group->grp_proc_pointers[i]->proc_name,
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ORTE_PROC_MY_NAME)) {
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assert(count <= nabort_procs);
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abort_procs[count++] = comm->c_local_group->grp_proc_pointers[i]->proc_name;
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} else {
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/* don't terminate me just yet */
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nabort_procs--;
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}
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}
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/* if requested, kill off remote procs too */
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if (kill_remote_of_intercomm) {
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for (i = 0 ; i < ompi_comm_remote_size(comm) ; ++i) {
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if (OPAL_EQUAL != orte_util_compare_name_fields(ORTE_NS_CMP_ALL,
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&comm->c_remote_group->grp_proc_pointers[i]->proc_name,
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ORTE_PROC_MY_NAME)) {
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assert(count <= nabort_procs);
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abort_procs[count++] =
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comm->c_remote_group->grp_proc_pointers[i]->proc_name;
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} else {
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/* don't terminate me just yet */
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nabort_procs--;
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}
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}
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}
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if (nabort_procs > 0) {
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/* This must be implemented for MPI_Abort() to work according to the
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* standard language for a 'high-quality' implementation.
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* It would be nifty if we could differentiate between the
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* abort scenarios:
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* - MPI_Abort()
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* - MPI_ERRORS_ARE_FATAL
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* - Victim of MPI_Abort()
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*/
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/*
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* Abort peers in this communicator group. Does not include self.
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*/
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if( ORTE_SUCCESS != (ret = orte_errmgr.abort_peers(abort_procs, nabort_procs)) ) {
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orte_errmgr.abort(ret, "Open MPI failed to abort all of the procs requested (%d).", ret);
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}
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}
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/* now that we've aborted everyone else, gracefully die. */
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orte_errmgr.abort(errcode, NULL);
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return OMPI_SUCCESS;
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}
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