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/*
* Copyright (c) 2004-2011 The Trustees of the University of Tennessee.
* All rights reserved.
* Copyright (c) 2012 Los Alamos National Security, LLC. All rights
* reserved.
* Copyright (c) 2015 Intel, Inc. All rights reserved.
* $COPYRIGHT$
*
* Additional copyrights may follow
*
* $HEADER$
*/
#include "ompi_config.h"
#include "vprotocol_pessimist_eventlog.h"
#include "opal/mca/pmix/pmix.h"
#include "ompi/dpm/dpm.h"
int vprotocol_pessimist_event_logger_connect(int el_rank, ompi_communicator_t **el_comm)
{
int rc;
char *port;
int rank;
vprotocol_pessimist_clock_t connect_info[2];
opal_list_t results;
opal_pmix_pdata_t *pdat;
OBJ_CONSTRUCT(&results, opal_list_t);
pdat = OBJ_NEW(opal_pmix_pdata_t);
asprintf(&pdat->value.key, VPROTOCOL_EVENT_LOGGER_NAME_FMT, el_rank);
opal_list_append(&results, &pdat->super);
rc = opal_pmix.lookup(&results, NULL);
if (OPAL_SUCCESS != rc ||
OPAL_STRING != pdat->value.type ||
NULL == pdat->value.data.string) {
OPAL_LIST_DESTRUCT(&results);
return OMPI_ERR_NOT_FOUND;
}
port = strdup(pdat->value.data.string);
OPAL_LIST_DESTRUCT(&results);
V_OUTPUT_VERBOSE(45, "Found port < %s >", port);
rc = ompi_dpm_connect_accept(MPI_COMM_SELF, 0, port, true, el_comm);
if(OMPI_SUCCESS != rc) {
OMPI_ERROR_LOG(rc);
}
/* Send Rank, receive max buffer size and max_clock back */
rank = ompi_comm_rank(&ompi_mpi_comm_world.comm);
rc = mca_pml_v.host_pml.pml_send(&rank, 1, MPI_INTEGER, 0,
VPROTOCOL_PESSIMIST_EVENTLOG_NEW_CLIENT_CMD,
MCA_PML_BASE_SEND_STANDARD,
mca_vprotocol_pessimist.el_comm);
if(OPAL_UNLIKELY(MPI_SUCCESS != rc))
OMPI_ERRHANDLER_INVOKE(mca_vprotocol_pessimist.el_comm, rc,
__FILE__ ": failed sending event logger handshake");
rc = mca_pml_v.host_pml.pml_recv(&connect_info, 2, MPI_UNSIGNED_LONG_LONG,
0, VPROTOCOL_PESSIMIST_EVENTLOG_NEW_CLIENT_CMD,
mca_vprotocol_pessimist.el_comm, MPI_STATUS_IGNORE);
if(OPAL_UNLIKELY(MPI_SUCCESS != rc)) \
OMPI_ERRHANDLER_INVOKE(mca_vprotocol_pessimist.el_comm, rc, \
__FILE__ ": failed receiving event logger handshake");
return rc;
}
int vprotocol_pessimist_event_logger_disconnect(ompi_communicator_t *el_comm)
{
ompi_dpm_disconnect(el_comm);
return OMPI_SUCCESS;
}
void vprotocol_pessimist_matching_replay(int *src) {
#if OPAL_ENABLE_DEBUG
vprotocol_pessimist_clock_t max = 0;
#endif
mca_vprotocol_pessimist_event_t *event;
/* searching this request in the event list */
for(event = (mca_vprotocol_pessimist_event_t *) opal_list_get_first(&mca_vprotocol_pessimist.replay_events);
event != (mca_vprotocol_pessimist_event_t *) opal_list_get_end(&mca_vprotocol_pessimist.replay_events);
event = (mca_vprotocol_pessimist_event_t *) opal_list_get_next(event))
{
vprotocol_pessimist_matching_event_t *mevent;
if(VPROTOCOL_PESSIMIST_EVENT_TYPE_MATCHING != event->type) continue;
mevent = &(event->u_event.e_matching);
if(mevent->reqid == mca_vprotocol_pessimist.clock)
{
/* this is the event to replay */
V_OUTPUT_VERBOSE(70, "pessimist: replay\tmatch\t%"PRIpclock"\trecv is forced from %d", mevent->reqid, mevent->src);
(*src) = mevent->src;
opal_list_remove_item(&mca_vprotocol_pessimist.replay_events,
(opal_list_item_t *) event);
VPESSIMIST_EVENT_RETURN(event);
}
#if OPAL_ENABLE_DEBUG
else if(mevent->reqid > max)
max = mevent->reqid;
}
/* not forcing a ANY SOURCE event whose recieve clock is lower than max
* is a bug indicating we have missed an event during logging ! */
assert(((*src) != MPI_ANY_SOURCE) || (mca_vprotocol_pessimist.clock > max));
#else
}
#endif
}
void vprotocol_pessimist_delivery_replay(size_t n, ompi_request_t **reqs,
int *outcount, int *index,
ompi_status_public_t *status) {
mca_vprotocol_pessimist_event_t *event;
for(event = (mca_vprotocol_pessimist_event_t *) opal_list_get_first(&mca_vprotocol_pessimist.replay_events);
event != (mca_vprotocol_pessimist_event_t *) opal_list_get_end(&mca_vprotocol_pessimist.replay_events);
event = (mca_vprotocol_pessimist_event_t *) opal_list_get_next(event))
{
vprotocol_pessimist_delivery_event_t *devent;
if(VPROTOCOL_PESSIMIST_EVENT_TYPE_DELIVERY != event->type) continue;
devent = &(event->u_event.e_delivery);
if(devent->probeid < mca_vprotocol_pessimist.clock)
{
/* this particular test have to return no request completed yet */
V_OUTPUT_VERBOSE(70, "pessimist:\treplay\tdeliver\t%"PRIpclock"\tnone", mca_vprotocol_pessimist.clock);
*index = MPI_UNDEFINED;
*outcount = 0;
mca_vprotocol_pessimist.clock++;
/* This request have to stay in the queue until probeid matches */
return;
}
else if(devent->probeid == mca_vprotocol_pessimist.clock)
{
int i;
for(i = 0; i < (int) n; i++)
{
if(VPESSIMIST_FTREQ(reqs[i])->reqid == devent->reqid)
{
V_OUTPUT_VERBOSE(70, "pessimist:\treplay\tdeliver\t%"PRIpclock"\t%"PRIpclock, devent->probeid, devent->reqid);
opal_list_remove_item(&mca_vprotocol_pessimist.replay_events,
(opal_list_item_t *) event);
VPESSIMIST_EVENT_RETURN(event);
*index = i;
*outcount = 1;
mca_vprotocol_pessimist.clock++;
ompi_request_wait(&reqs[i], status);
return;
}
}
V_OUTPUT_VERBOSE(70, "pessimist:\treplay\tdeliver\t%"PRIpclock"\tnone", mca_vprotocol_pessimist.clock);
assert(devent->reqid == 0); /* make sure we don't missed a request */
*index = MPI_UNDEFINED;
*outcount = 0;
mca_vprotocol_pessimist.clock++;
opal_list_remove_item(&mca_vprotocol_pessimist.replay_events,
(opal_list_item_t *) event);
VPESSIMIST_EVENT_RETURN(event);
return;
}
}
V_OUTPUT_VERBOSE(50, "pessimist:\treplay\tdeliver\t%"PRIpclock"\tnot forced", mca_vprotocol_pessimist.clock);
}
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