5dfd54c778
Clean up the remainder of the size_t references in the runtime itself. Convert to orte_std_cntr_t wherever it makes sense (only avoid those places where the actual memory size is referenced). Remove the obsolete oob barrier function (we actually obsoleted it a long time ago - just never bothered to clean it up). I have done my best to go through all the components and catch everything, even if I couldn't test compile them since I wasn't on that type of system. Still, I cannot guarantee that problems won't show up when you test this on specific systems. Usually, these will just show as "warning: comparison between signed and unsigned" notes which are easily fixed (just change a size_t to orte_std_cntr_t). In some places, people didn't use size_t, but instead used some other variant (e.g., I found several places with uint32_t). I tried to catch all of them, but... Once we get all the instances caught and fixed, this should once and for all resolve many of the heterogeneity problems. This commit was SVN r11204.
816 строки
26 KiB
C
816 строки
26 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 "ompi_config.h"
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#include <string.h>
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#include <stdio.h>
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#ifdef HAVE_SYS_UIO_H
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#include <sys/uio.h>
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#endif
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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 "opal/util/printf.h"
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#include "opal/util/convert.h"
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#include "opal/threads/mutex.h"
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#include "opal/util/bit_ops.h"
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#include "opal/util/argv.h"
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#include "ompi/communicator/communicator.h"
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#include "ompi/request/request.h"
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#include "ompi/errhandler/errhandler.h"
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#include "ompi/proc/proc.h"
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#include "ompi/info/info.h"
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#include "ompi/constants.h"
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#include "ompi/mca/pml/pml.h"
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#include "orte/util/proc_info.h"
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#include "orte/dss/dss.h"
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#include "orte/mca/ns/ns.h"
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#include "orte/mca/gpr/gpr.h"
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#include "orte/mca/errmgr/errmgr.h"
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#include "orte/mca/rmgr/rmgr.h"
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#include "orte/mca/rmgr/base/base.h"
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#include "orte/mca/soh/soh_types.h"
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#include "orte/mca/rml/rml.h"
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#include "orte/runtime/runtime.h"
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extern char **environ;
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int ompi_comm_connect_accept ( ompi_communicator_t *comm, int root,
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orte_process_name_t *port, int send_first,
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ompi_communicator_t **newcomm, orte_rml_tag_t tag )
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{
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int size, rsize, rank, rc;
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orte_std_cntr_t num_vals;
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orte_std_cntr_t rnamebuflen = 0;
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int rnamebuflen_int = 0;
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void *rnamebuf=NULL;
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ompi_communicator_t *newcomp=MPI_COMM_NULL;
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ompi_proc_t **rprocs=NULL;
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ompi_group_t *group=comm->c_local_group;
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orte_process_name_t *rport=NULL;
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orte_buffer_t *nbuf=NULL, *nrbuf=NULL;
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size = ompi_comm_size ( comm );
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rank = ompi_comm_rank ( comm );
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/* tell the progress engine to tick the event library more
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often, to make sure that the OOB messages get sent */
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opal_progress_event_increment();
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if ( rank == root ) {
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/* The process receiving first does not have yet the contact
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information of the remote process. Therefore, we have to
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exchange that.
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*/
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if ( OMPI_COMM_JOIN_TAG != (int)tag ) {
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rport = ompi_comm_get_rport( port,send_first,
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group->grp_proc_pointers[rank], tag);
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} else {
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rport = port;
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}
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/* Generate the message buffer containing the number of processes and the list of
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participating processes */
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nbuf = OBJ_NEW(orte_buffer_t);
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if (NULL == nbuf) {
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return OMPI_ERROR;
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}
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if (ORTE_SUCCESS != (rc = orte_dss.pack(nbuf, &size, 1, ORTE_INT))) {
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goto exit;
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}
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ompi_proc_get_namebuf (group->grp_proc_pointers, size, nbuf);
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nrbuf = OBJ_NEW(orte_buffer_t);
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if (NULL == nrbuf ) {
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rc = OMPI_ERROR;
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goto exit;
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}
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/* Exchange the number and the list of processes in the groups */
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if ( send_first ) {
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rc = orte_rml.send_buffer(rport, nbuf, tag, 0);
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rc = orte_rml.recv_buffer(rport, nrbuf, tag);
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} else {
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rc = orte_rml.recv_buffer(rport, nrbuf, tag);
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rc = orte_rml.send_buffer(rport, nbuf, tag, 0);
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}
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if (ORTE_SUCCESS != (rc = orte_dss.unload(nrbuf, &rnamebuf, &rnamebuflen))) {
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goto exit;
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}
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}
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/* First convert the size_t to an int so we can cast in the bcast to a void *
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* if we don't then we will get badness when using big vs little endian
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* THIS IS NO LONGER REQUIRED AS THE LENGTH IS NOW A STD_CNTR_T, WHICH
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* CORRELATES TO AN INT32
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*/
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rnamebuflen = (int)rnamebuflen;
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/* bcast the buffer-length to all processes in the local comm */
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rc = comm->c_coll.coll_bcast (&rnamebuflen_int, 1, MPI_INT, root, comm );
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if ( OMPI_SUCCESS != rc ) {
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goto exit;
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}
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rnamebuflen = (size_t)rnamebuflen_int;
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if ( rank != root ) {
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/* non root processes need to allocate the buffer manually */
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rnamebuf = (char *) malloc(rnamebuflen);
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if ( NULL == rnamebuf ) {
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rc = OMPI_ERR_OUT_OF_RESOURCE;
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goto exit;
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}
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}
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/* bcast list of processes to all procs in local group
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and reconstruct the data. Note that proc_get_proclist
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adds processes, which were not known yet to our
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process pool.
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*/
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rc = comm->c_coll.coll_bcast (rnamebuf, rnamebuflen_int, MPI_BYTE, root, comm );
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if ( OMPI_SUCCESS != rc ) {
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goto exit;
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}
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nrbuf = OBJ_NEW(orte_buffer_t);
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if (NULL == nrbuf) {
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goto exit;
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}
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if ( ORTE_SUCCESS != ( rc = orte_dss.load(nrbuf, rnamebuf, rnamebuflen))) {
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goto exit;
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}
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num_vals = 1;
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if (ORTE_SUCCESS != (rc = orte_dss.unpack(nrbuf, &rsize, &num_vals, ORTE_INT))) {
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goto exit;
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}
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rc = ompi_proc_get_proclist (nrbuf, rsize, &rprocs);
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if ( OMPI_SUCCESS != rc ) {
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goto exit;
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}
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OBJ_RELEASE(nrbuf);
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if ( rank == root ) {
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OBJ_RELEASE(nbuf);
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}
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/* allocate comm-structure */
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newcomp = ompi_comm_allocate ( size, rsize );
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if ( NULL == newcomp ) {
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rc = OMPI_ERR_OUT_OF_RESOURCE;
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goto exit;
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}
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/* allocate comm_cid */
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rc = ompi_comm_nextcid ( newcomp, /* new communicator */
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comm, /* old communicator */
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NULL, /* bridge comm */
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&root, /* local leader */
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rport, /* remote leader */
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OMPI_COMM_CID_INTRA_OOB, /* mode */
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send_first ); /* send or recv first */
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if ( OMPI_SUCCESS != rc ) {
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goto exit;
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}
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/* set up communicator structure */
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rc = ompi_comm_set ( newcomp, /* new comm */
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comm, /* old comm */
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group->grp_proc_count, /* local_size */
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group->grp_proc_pointers, /* local_procs*/
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rsize, /* remote_size */
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rprocs, /* remote_procs */
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NULL, /* attrs */
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comm->error_handler, /* error handler */
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NULL /* topo component */
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);
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/* activate comm and init coll-component */
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rc = ompi_comm_activate ( newcomp, /* new communicator */
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comm, /* old communicator */
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NULL, /* bridge comm */
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&root, /* local leader */
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rport, /* remote leader */
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OMPI_COMM_CID_INTRA_OOB, /* mode */
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send_first, /* send or recv first */
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NULL ); /* coll component */
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if ( OMPI_SUCCESS != rc ) {
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goto exit;
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}
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/* Question: do we have to re-start some low level stuff
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to enable the usage of fast communication devices
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between the two worlds ?
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*/
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exit:
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/* done with OOB and such - slow our tick rate again */
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opal_progress();
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opal_progress_event_decrement();
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if ( NULL != rprocs ) {
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free ( rprocs );
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}
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if ( OMPI_SUCCESS != rc ) {
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if ( MPI_COMM_NULL != newcomp ) {
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OBJ_RETAIN(newcomp);
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newcomp = MPI_COMM_NULL;
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}
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}
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*newcomm = newcomp;
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return rc;
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}
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/**********************************************************************/
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/**********************************************************************/
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/**********************************************************************/
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/*
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* This routine is necessary, since in the connect/accept case, the processes
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* executing the connect operation have the OOB contact information of the
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* leader of the remote group, however, the processes executing the
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* accept get their own port_name = OOB contact information passed in as
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* an argument. This is however useless.
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*
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* Therefore, the two root processes exchange this information at this point.
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*
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*/
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orte_process_name_t *ompi_comm_get_rport (orte_process_name_t *port, int send_first,
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ompi_proc_t *proc, orte_rml_tag_t tag)
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{
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int rc;
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orte_std_cntr_t num_vals;
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orte_process_name_t *rport, tbuf;
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ompi_proc_t *rproc=NULL;
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bool isnew = false;
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if ( send_first ) {
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orte_buffer_t *sbuf;
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rproc = ompi_proc_find_and_add(port, &isnew);
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sbuf = OBJ_NEW(orte_buffer_t);
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if (NULL == sbuf) {
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return NULL;
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}
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if (ORTE_SUCCESS != orte_dss.pack(sbuf, &(proc->proc_name), 1, ORTE_NAME)) {
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return NULL;
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}
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rc = orte_rml.send_buffer(port, sbuf, tag, 0);
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OBJ_RELEASE(sbuf);
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rport = port;
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}
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else {
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orte_buffer_t *rbuf;
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rbuf = OBJ_NEW(orte_buffer_t);
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if (NULL == rbuf) {
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return NULL;
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}
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rc = orte_rml.recv_buffer(ORTE_RML_NAME_ANY, rbuf, tag);
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num_vals = 1;
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if (ORTE_SUCCESS != orte_dss.unpack(rbuf, &tbuf, &num_vals, ORTE_NAME)) {
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return NULL;
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}
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OBJ_RELEASE(rbuf);
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rproc = ompi_proc_find_and_add(&tbuf, &isnew);
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rport = &(rproc->proc_name);
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}
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if (isnew) {
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MCA_PML_CALL(add_procs(&rproc, 1));
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}
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return rport;
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}
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/**********************************************************************/
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/**********************************************************************/
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/**********************************************************************/
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int
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ompi_comm_start_processes(int count, char **array_of_commands,
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char ***array_of_argv,
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int *array_of_maxprocs,
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MPI_Info *array_of_info,
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char *port_name)
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{
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int rc, i, j, counter;
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int have_wdir=0;
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bool have_prefix;
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int valuelen=OMPI_PATH_MAX, flag=0;
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char cwd[OMPI_PATH_MAX];
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char host[OMPI_PATH_MAX]; /*** should define OMPI_HOST_MAX ***/
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char prefix[OMPI_PATH_MAX];
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char *base_prefix;
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orte_std_cntr_t num_apps, ai;
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orte_jobid_t new_jobid;
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orte_app_context_t **apps=NULL;
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/* parse the info object */
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/* check potentially for:
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- "host": desired host where to spawn the processes
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- "prefix": the path to the root of the directory tree where ompi
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executables and libraries can be found
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- "arch": desired architecture
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- "wdir": directory, where executable can be found
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- "path": list of directories where to look for the executable
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- "file": filename, where additional information is provided.
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- "soft": see page 92 of MPI-2.
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*/
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/* make sure the progress engine properly trips the event library */
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opal_progress_event_increment();
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/* we want to be able to default the prefix to the one used for this job
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* so that the ompi executables and libraries can be found. the user can
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* later override this value by providing an MPI_Info value. for now, though,
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* let's get the default value off the registry
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*/
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if (ORTE_SUCCESS != (rc = orte_rmgr_base_get_app_context(orte_process_info.my_name->jobid, &apps, &num_apps))) {
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ORTE_ERROR_LOG(rc);
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return rc;
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}
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/* we'll just use the prefix from the first member of the app_context array.
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* this shouldn't matter as they all should be the same. it could be NULL, of
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* course (user might not have specified it), so we need to protect against that.
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*/
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if (NULL != apps[0]->prefix_dir) {
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base_prefix = strdup(apps[0]->prefix_dir);
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} else {
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base_prefix = NULL;
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}
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/* cleanup the memory we used */
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for (ai = 0; ai < num_apps; ai++) {
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OBJ_RELEASE(apps[ai]);
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}
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if (NULL != apps) free(apps);
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/* Convert the list of commands to an array of orte_app_context_t
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pointers */
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apps = (orte_app_context_t**)malloc(count * sizeof(orte_app_context_t *));
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if (NULL == apps) {
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ORTE_ERROR_LOG(ORTE_ERR_OUT_OF_RESOURCE);
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return ORTE_ERR_OUT_OF_RESOURCE;
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}
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for (i = 0; i < count; ++i) {
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apps[i] = OBJ_NEW(orte_app_context_t);
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if (NULL == apps[i]) {
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ORTE_ERROR_LOG(ORTE_ERR_OUT_OF_RESOURCE);
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/* rollback what was already done */
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for (j=0; j < i; j++) OBJ_RELEASE(apps[j]);
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opal_progress_event_decrement();
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return ORTE_ERR_OUT_OF_RESOURCE;
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}
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/* copy over the name of the executable */
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apps[i]->app = strdup(array_of_commands[i]);
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if (NULL == apps[i]->app) {
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ORTE_ERROR_LOG(ORTE_ERR_OUT_OF_RESOURCE);
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/* rollback what was already done */
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for (j=0; j < i; j++) OBJ_RELEASE(apps[j]);
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opal_progress_event_decrement();
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return ORTE_ERR_OUT_OF_RESOURCE;
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}
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/* record the number of procs to be generated */
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apps[i]->num_procs = array_of_maxprocs[i];
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/* copy over the argv array */
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counter = 1;
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if (MPI_ARGVS_NULL != array_of_argv &&
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MPI_ARGV_NULL != array_of_argv[i]) {
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/* first need to find out how many entries there are */
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j=0;
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while (NULL != array_of_argv[i][j]) {
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j++;
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}
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counter += j;
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}
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/* now copy them over, ensuring to NULL terminate the array */
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apps[i]->argv = (char**)malloc((1 + counter) * sizeof(char*));
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if (NULL == apps[i]->argv) {
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ORTE_ERROR_LOG(ORTE_ERR_OUT_OF_RESOURCE);
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/* rollback what was already done */
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for (j=0; j < i; j++) {
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OBJ_RELEASE(apps[j]);
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}
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opal_progress_event_decrement();
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return ORTE_ERR_OUT_OF_RESOURCE;
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}
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apps[i]->argv[0] = strdup(array_of_commands[i]);
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for (j=1; j < counter; j++) {
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apps[i]->argv[j] = strdup(array_of_argv[i][j-1]);
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}
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apps[i]->argv[counter] = NULL;
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/* the environment gets set by the launcher
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* all we need to do is add the specific values
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* needed for comm_spawn
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*/
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/* Add environment variable with the contact information for the
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child processes.
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*/
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counter = 1;
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apps[i]->env = (char**)malloc((1+counter) * sizeof(char*));
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if (NULL == apps[i]->env) {
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ORTE_ERROR_LOG(ORTE_ERR_OUT_OF_RESOURCE);
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/* rollback what was already done */
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for (j=0; j < i; j++) OBJ_RELEASE(apps[j]);
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opal_progress_event_decrement();
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return ORTE_ERR_OUT_OF_RESOURCE;
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}
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asprintf(&(apps[i]->env[0]), "OMPI_PARENT_PORT=%s", port_name);
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apps[i]->env[1] = NULL;
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for (j = 0; NULL != environ[j]; ++j) {
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if (0 == strncmp("OMPI_", environ[j], 5)) {
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opal_argv_append_nosize(&apps[i]->env, environ[j]);
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}
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}
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/* Check for well-known info keys */
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have_wdir = 0;
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have_prefix = false;
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if ( array_of_info != NULL && array_of_info[i] != MPI_INFO_NULL ) {
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/* check for 'wdir' */
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ompi_info_get (array_of_info[i], "wdir", valuelen, cwd, &flag);
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if ( flag ) {
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apps[i]->cwd = cwd;
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have_wdir = 1;
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}
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/* check for 'host' */
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ompi_info_get (array_of_info[i], "host", sizeof(host), host, &flag);
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if ( flag ) {
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apps[i]->num_map = 1;
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apps[i]->map_data = (orte_app_context_map_t **) malloc(sizeof(orte_app_context_map_t *));
|
|
apps[i]->map_data[0] = OBJ_NEW(orte_app_context_map_t);
|
|
apps[i]->map_data[0]->map_type = ORTE_APP_CONTEXT_MAP_HOSTNAME;
|
|
apps[i]->map_data[0]->map_data = strdup(host);
|
|
}
|
|
|
|
/* 'path', 'arch', 'file', 'soft' -- to be implemented */
|
|
|
|
/* check for 'ompi_prefix' (OMPI-specific -- to effect the same
|
|
* behavior as --prefix option to orterun)
|
|
*/
|
|
ompi_info_get (array_of_info[i], "ompi_prefix", sizeof(prefix), prefix, &flag);
|
|
if ( flag ) {
|
|
apps[i]->prefix_dir = strdup(prefix);
|
|
have_prefix = true;
|
|
}
|
|
}
|
|
|
|
/* default value: If the user did not tell us where to look for the
|
|
executable, we assume the current working directory */
|
|
if ( !have_wdir ) {
|
|
getcwd(cwd, OMPI_PATH_MAX);
|
|
apps[i]->cwd = strdup(cwd);
|
|
}
|
|
|
|
/* if the user told us a new prefix, then we leave it alone. otherwise, if
|
|
* a prefix had been provided before, copy that one into the new app_context
|
|
* for use by the spawned children
|
|
*/
|
|
if ( !have_prefix && NULL != base_prefix) {
|
|
apps[i]->prefix_dir = strdup(base_prefix);
|
|
}
|
|
|
|
/* leave the map info alone - the launcher will
|
|
* decide where to put things
|
|
*/
|
|
} /* for (i = 0 ; i < count ; ++i) */
|
|
|
|
/* cleanup */
|
|
if (NULL != base_prefix) free(base_prefix);
|
|
|
|
/* spawn procs */
|
|
if (ORTE_SUCCESS != (rc = orte_rmgr.spawn(apps, count, &new_jobid, NULL, ORTE_PROC_STATE_NONE))) {
|
|
ORTE_ERROR_LOG(rc);
|
|
opal_progress_event_decrement();
|
|
return MPI_ERR_SPAWN;
|
|
}
|
|
|
|
/* clean up */
|
|
opal_progress_event_decrement();
|
|
for ( i=0; i<count; i++) {
|
|
OBJ_RELEASE(apps[i]);
|
|
}
|
|
free (apps);
|
|
|
|
return OMPI_SUCCESS;
|
|
}
|
|
|
|
/**********************************************************************/
|
|
/**********************************************************************/
|
|
/**********************************************************************/
|
|
int ompi_comm_dyn_init (void)
|
|
{
|
|
char *envvarname=NULL, *port_name=NULL;
|
|
char *oob_port=NULL;
|
|
int root=0, send_first=1, rc;
|
|
orte_rml_tag_t tag;
|
|
ompi_communicator_t *newcomm=NULL;
|
|
orte_process_name_t *port_proc_name=NULL;
|
|
ompi_group_t *group = NULL;
|
|
ompi_errhandler_t *errhandler = NULL;
|
|
|
|
/* check for appropriate env variable */
|
|
asprintf(&envvarname, "OMPI_PARENT_PORT");
|
|
port_name = getenv(envvarname);
|
|
free (envvarname);
|
|
|
|
/* if env-variable is set, parse port and call comm_connect_accept */
|
|
if (NULL != port_name ) {
|
|
ompi_communicator_t *oldcomm;
|
|
|
|
/* split the content of the environment variable into
|
|
its pieces, which are : port_name and tag */
|
|
oob_port = ompi_parse_port (port_name, &tag);
|
|
if (ORTE_SUCCESS != (rc = orte_ns.convert_string_to_process_name(&port_proc_name, oob_port))) {
|
|
return rc;
|
|
}
|
|
|
|
rc = ompi_comm_connect_accept (MPI_COMM_WORLD, root, port_proc_name,
|
|
send_first, &newcomm, tag );
|
|
if (ORTE_SUCCESS != rc) {
|
|
return rc;
|
|
}
|
|
|
|
/* Set the parent communicator */
|
|
ompi_mpi_comm_parent = newcomm;
|
|
|
|
/* originally, we set comm_parent to comm_null (in comm_init),
|
|
* now we have to decrease the reference counters to the according
|
|
* objects
|
|
*/
|
|
|
|
oldcomm = &ompi_mpi_comm_null;
|
|
OBJ_RELEASE(oldcomm);
|
|
group = &ompi_mpi_group_null;
|
|
OBJ_RELEASE(group);
|
|
errhandler = &ompi_mpi_errors_are_fatal;
|
|
OBJ_RELEASE(errhandler);
|
|
|
|
/* Set name for debugging purposes */
|
|
snprintf(newcomm->c_name, MPI_MAX_OBJECT_NAME, "MPI_COMM_PARENT");
|
|
}
|
|
|
|
return OMPI_SUCCESS;
|
|
}
|
|
|
|
/**********************************************************************/
|
|
/**********************************************************************/
|
|
/**********************************************************************/
|
|
/* this routine runs through the list of communicators and
|
|
and does the disconnect for all dynamic communicators */
|
|
int ompi_comm_dyn_finalize (void)
|
|
{
|
|
int i,j=0, max=0;
|
|
ompi_comm_disconnect_obj **objs=NULL;
|
|
ompi_communicator_t *comm=NULL;
|
|
|
|
if ( 1 <ompi_comm_num_dyncomm ) {
|
|
objs = (ompi_comm_disconnect_obj **)malloc (ompi_comm_num_dyncomm*
|
|
sizeof(ompi_comm_disconnect_obj*));
|
|
if ( NULL == objs ) {
|
|
return OMPI_ERR_OUT_OF_RESOURCE;
|
|
}
|
|
|
|
max = ompi_pointer_array_get_size(&ompi_mpi_communicators);
|
|
for ( i=3; i<max; i++ ) {
|
|
comm = (ompi_communicator_t*)ompi_pointer_array_get_item(&ompi_mpi_communicators,i);
|
|
if ( OMPI_COMM_IS_DYNAMIC(comm)) {
|
|
objs[j++]=ompi_comm_disconnect_init(comm);
|
|
}
|
|
}
|
|
|
|
if ( j != ompi_comm_num_dyncomm+1 ) {
|
|
free (objs);
|
|
return OMPI_ERROR;
|
|
}
|
|
|
|
ompi_comm_disconnect_waitall (ompi_comm_num_dyncomm, objs);
|
|
free (objs);
|
|
}
|
|
|
|
|
|
return OMPI_SUCCESS;
|
|
}
|
|
|
|
/**********************************************************************/
|
|
/**********************************************************************/
|
|
/**********************************************************************/
|
|
|
|
ompi_comm_disconnect_obj *ompi_comm_disconnect_init ( ompi_communicator_t *comm)
|
|
{
|
|
ompi_comm_disconnect_obj *obj=NULL;
|
|
int ret;
|
|
int i;
|
|
|
|
obj = (ompi_comm_disconnect_obj *) calloc(1,sizeof(ompi_comm_disconnect_obj));
|
|
if ( NULL == obj ) {
|
|
return NULL;
|
|
}
|
|
|
|
if ( OMPI_COMM_IS_INTER(comm) ) {
|
|
obj->size = ompi_comm_remote_size (comm);
|
|
}
|
|
else {
|
|
obj->size = ompi_comm_size (comm);
|
|
}
|
|
|
|
obj->comm = comm;
|
|
obj->reqs = (ompi_request_t **) malloc(2*obj->size*sizeof(ompi_request_t *));
|
|
if ( NULL == obj->reqs ) {
|
|
free (obj);
|
|
return NULL;
|
|
}
|
|
|
|
/* initiate all isend_irecvs. We use a dummy buffer stored on
|
|
the object, since we are sending zero size messages anyway. */
|
|
for ( i=0; i < obj->size; i++ ) {
|
|
ret = MCA_PML_CALL(irecv (&(obj->buf), 0, MPI_INT, i,
|
|
OMPI_COMM_BARRIER_TAG, comm,
|
|
&(obj->reqs[2*i])));
|
|
|
|
if ( OMPI_SUCCESS != ret ) {
|
|
free (obj->reqs);
|
|
free (obj);
|
|
return NULL;
|
|
}
|
|
|
|
ret = MCA_PML_CALL(isend (&(obj->buf), 0, MPI_INT, i,
|
|
OMPI_COMM_BARRIER_TAG,
|
|
MCA_PML_BASE_SEND_SYNCHRONOUS,
|
|
comm, &(obj->reqs[2*i+1])));
|
|
|
|
if ( OMPI_SUCCESS != ret ) {
|
|
free (obj->reqs);
|
|
free (obj);
|
|
return NULL;
|
|
}
|
|
|
|
}
|
|
|
|
/* return handle */
|
|
return obj;
|
|
}
|
|
/**********************************************************************/
|
|
/**********************************************************************/
|
|
/**********************************************************************/
|
|
/* - count how many requests are active
|
|
* - generate a request array large enough to hold
|
|
all active requests
|
|
* - call waitall on the overall request array
|
|
* - free the objects
|
|
*/
|
|
void ompi_comm_disconnect_waitall (int count, ompi_comm_disconnect_obj **objs)
|
|
{
|
|
|
|
ompi_request_t **reqs=NULL;
|
|
char *treq=NULL;
|
|
int totalcount = 0;
|
|
int i;
|
|
int ret;
|
|
|
|
for (i=0; i<count; i++) {
|
|
if (NULL == objs[i]) {
|
|
printf("Error in comm_disconnect_waitall\n");
|
|
return;
|
|
}
|
|
|
|
totalcount += objs[i]->size;
|
|
}
|
|
|
|
reqs = (ompi_request_t **) malloc (2*totalcount*sizeof(ompi_request_t *));
|
|
if ( NULL == reqs ) {
|
|
printf("ompi_comm_disconnect_waitall: error allocating memory\n");
|
|
return;
|
|
}
|
|
|
|
/* generate a single, large array of pending requests */
|
|
treq = (char *)reqs;
|
|
for (i=0; i<count; i++) {
|
|
memcpy (treq, objs[i]->reqs, 2*objs[i]->size * sizeof(ompi_request_t *));
|
|
treq += 2*objs[i]->size * sizeof(ompi_request_t *);
|
|
}
|
|
|
|
/* force all non-blocking all-to-alls to finish */
|
|
ret = ompi_request_wait_all (2*totalcount, reqs, MPI_STATUSES_IGNORE);
|
|
|
|
/* Finally, free everything */
|
|
for (i=0; i< count; i++ ) {
|
|
if (NULL != objs[i]->reqs ) {
|
|
free (objs[i]->reqs );
|
|
free (objs[i]);
|
|
}
|
|
}
|
|
|
|
free (reqs);
|
|
|
|
/* decrease the counter for dynamic communicators by 'count'.
|
|
Attention, this approach now requires, that we are just using
|
|
these routines for communicators which have been flagged dynamic */
|
|
ompi_comm_num_dyncomm -=count;
|
|
|
|
return;
|
|
}
|
|
|
|
/**********************************************************************/
|
|
/**********************************************************************/
|
|
/**********************************************************************/
|
|
#define OMPI_COMM_MAXJOBIDS 64
|
|
void ompi_comm_mark_dyncomm (ompi_communicator_t *comm)
|
|
{
|
|
int i, j, numjobids=0;
|
|
int size, rsize;
|
|
int found;
|
|
orte_jobid_t jobids[OMPI_COMM_MAXJOBIDS], thisjobid;
|
|
ompi_group_t *grp=NULL;
|
|
|
|
/* special case for MPI_COMM_NULL */
|
|
if ( comm == MPI_COMM_NULL ) {
|
|
return;
|
|
}
|
|
|
|
size = ompi_comm_size (comm);
|
|
rsize = ompi_comm_remote_size(comm);
|
|
|
|
/* loop over all processes in local group and count number
|
|
of different jobids. */
|
|
grp = comm->c_local_group;
|
|
for (i=0; i< size; i++) {
|
|
if (ORTE_SUCCESS != orte_ns.get_jobid(&thisjobid, &(grp->grp_proc_pointers[i]->proc_name))) {
|
|
return;
|
|
}
|
|
found = 0;
|
|
for ( j=0; j<numjobids; j++) {
|
|
if ( thisjobid == jobids[j]) {
|
|
found = 1;
|
|
break;
|
|
}
|
|
}
|
|
if (!found ) {
|
|
jobids[numjobids++] = thisjobid;
|
|
}
|
|
}
|
|
|
|
/* if inter-comm, loop over all processes in remote_group
|
|
and count number of different jobids */
|
|
grp = comm->c_remote_group;
|
|
for (i=0; i< rsize; i++) {
|
|
if (ORTE_SUCCESS != orte_ns.get_jobid(&thisjobid, &(grp->grp_proc_pointers[i]->proc_name))) {
|
|
return;
|
|
}
|
|
found = 0;
|
|
for ( j=0; j<numjobids; j++) {
|
|
if ( thisjobid == jobids[j]) {
|
|
found = 1;
|
|
break;
|
|
}
|
|
}
|
|
if (!found ) {
|
|
jobids[numjobids++] = thisjobid;
|
|
}
|
|
}
|
|
|
|
/* if number of joibds larger than one, set the disconnect flag*/
|
|
if ( numjobids > 1 ) {
|
|
ompi_comm_num_dyncomm++;
|
|
OMPI_COMM_SET_DYNAMIC(comm);
|
|
}
|
|
|
|
return;
|
|
}
|