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openmpi/ompi/mca/pml/csum/pml_csum.c

802 строки
29 KiB
C
Исходник Обычный вид История

/* -*- Mode: C; c-basic-offset:4 ; -*- */
/*
* Copyright (c) 2004-2008 The Trustees of Indiana University and Indiana
* University Research and Technology
* Corporation. All rights reserved.
* Copyright (c) 2004-2009 The University of Tennessee and The University
* of Tennessee Research Foundation. All rights
* reserved.
* Copyright (c) 2004-2005 High Performance Computing Center Stuttgart,
* University of Stuttgart. All rights reserved.
* Copyright (c) 2004-2005 The Regents of the University of California.
* All rights reserved.
* Copyright (c) 2008 UT-Battelle, LLC. All rights reserved.
* Copyright (c) 2006-2008 University of Houston. All rights reserved.
* Copyright (c) 2009 IBM Corporation. All rights reserved.
* Copyright (c) 2009 Los Alamos National Security, LLC. All rights
* reserved.
* $COPYRIGHT$
*
* Additional copyrights may follow
*
* $HEADER$
*/
#include "ompi_config.h"
#include <stdlib.h>
#include <string.h>
#include "opal/class/opal_bitmap.h"
#include "ompi/mca/pml/pml.h"
#include "ompi/mca/pml/base/base.h"
#include "ompi/mca/btl/btl.h"
#include "ompi/mca/pml/base/base.h"
#include "ompi/mca/btl/base/base.h"
#include "pml_csum.h"
#include "pml_csum_component.h"
#include "pml_csum_comm.h"
#include "pml_csum_hdr.h"
#include "pml_csum_recvfrag.h"
#include "pml_csum_sendreq.h"
#include "pml_csum_recvreq.h"
#include "pml_csum_rdmafrag.h"
#include "ompi/mca/bml/base/base.h"
#include "orte/mca/errmgr/errmgr.h"
#include "orte/mca/grpcomm/grpcomm.h"
#include "orte/util/name_fns.h"
#include "orte/runtime/orte_globals.h"
#include "opal/util/crc.h"
#include "ompi/runtime/ompi_cr.h"
#include "ompi/runtime/ompi_module_exchange.h"
mca_pml_csum_t mca_pml_csum = {
{
mca_pml_csum_add_procs,
mca_pml_csum_del_procs,
mca_pml_csum_enable,
mca_pml_csum_progress,
mca_pml_csum_add_comm,
mca_pml_csum_del_comm,
mca_pml_csum_irecv_init,
mca_pml_csum_irecv,
mca_pml_csum_recv,
mca_pml_csum_isend_init,
mca_pml_csum_isend,
mca_pml_csum_send,
mca_pml_csum_iprobe,
mca_pml_csum_probe,
mca_pml_csum_start,
mca_pml_csum_dump,
mca_pml_csum_ft_event,
32768,
INT_MAX
}
};
void mca_pml_csum_error_handler( struct mca_btl_base_module_t* btl,
int32_t flags );
int mca_pml_csum_enable(bool enable)
{
if( false == enable ) {
return OMPI_SUCCESS;
}
OBJ_CONSTRUCT(&mca_pml_csum.lock, opal_mutex_t);
/* fragments */
OBJ_CONSTRUCT(&mca_pml_csum.rdma_frags, ompi_free_list_t);
ompi_free_list_init_new( &mca_pml_csum.rdma_frags,
sizeof(mca_pml_csum_rdma_frag_t),
CACHE_LINE_SIZE,
OBJ_CLASS(mca_pml_csum_rdma_frag_t),
0,CACHE_LINE_SIZE,
mca_pml_csum.free_list_num,
mca_pml_csum.free_list_max,
mca_pml_csum.free_list_inc,
NULL );
OBJ_CONSTRUCT(&mca_pml_csum.recv_frags, ompi_free_list_t);
ompi_free_list_init_new( &mca_pml_csum.recv_frags,
sizeof(mca_pml_csum_recv_frag_t) + mca_pml_csum.unexpected_limit,
CACHE_LINE_SIZE,
OBJ_CLASS(mca_pml_csum_recv_frag_t),
0,CACHE_LINE_SIZE,
mca_pml_csum.free_list_num,
mca_pml_csum.free_list_max,
mca_pml_csum.free_list_inc,
NULL );
OBJ_CONSTRUCT(&mca_pml_csum.pending_pckts, ompi_free_list_t);
ompi_free_list_init_new( &mca_pml_csum.pending_pckts,
sizeof(mca_pml_csum_pckt_pending_t),
CACHE_LINE_SIZE,
OBJ_CLASS(mca_pml_csum_pckt_pending_t),
0,CACHE_LINE_SIZE,
mca_pml_csum.free_list_num,
mca_pml_csum.free_list_max,
mca_pml_csum.free_list_inc,
NULL );
OBJ_CONSTRUCT(&mca_pml_csum.buffers, ompi_free_list_t);
OBJ_CONSTRUCT(&mca_pml_csum.send_ranges, ompi_free_list_t);
ompi_free_list_init_new( &mca_pml_csum.send_ranges,
sizeof(mca_pml_csum_send_range_t) +
(mca_pml_csum.max_send_per_range - 1) * sizeof(mca_pml_csum_com_btl_t),
CACHE_LINE_SIZE,
OBJ_CLASS(mca_pml_csum_send_range_t),
0,CACHE_LINE_SIZE,
mca_pml_csum.free_list_num,
mca_pml_csum.free_list_max,
mca_pml_csum.free_list_inc,
NULL );
/* pending operations */
OBJ_CONSTRUCT(&mca_pml_csum.send_pending, opal_list_t);
OBJ_CONSTRUCT(&mca_pml_csum.recv_pending, opal_list_t);
OBJ_CONSTRUCT(&mca_pml_csum.pckt_pending, opal_list_t);
OBJ_CONSTRUCT(&mca_pml_csum.rdma_pending, opal_list_t);
/* missing communicator pending list */
OBJ_CONSTRUCT(&mca_pml_csum.non_existing_communicator_pending, opal_list_t);
/**
* If we get here this is the PML who get selected for the run. We
* should get ownership for the send and receive requests list, and
* initialize them with the size of our own requests.
*/
ompi_free_list_init_new( &mca_pml_base_send_requests,
sizeof(mca_pml_csum_send_request_t) +
(mca_pml_csum.max_rdma_per_request - 1) *
sizeof(mca_pml_csum_com_btl_t),
CACHE_LINE_SIZE,
OBJ_CLASS(mca_pml_csum_send_request_t),
0,CACHE_LINE_SIZE,
mca_pml_csum.free_list_num,
mca_pml_csum.free_list_max,
mca_pml_csum.free_list_inc,
NULL );
ompi_free_list_init_new( &mca_pml_base_recv_requests,
sizeof(mca_pml_csum_recv_request_t) +
(mca_pml_csum.max_rdma_per_request - 1) *
sizeof(mca_pml_csum_com_btl_t),
CACHE_LINE_SIZE,
OBJ_CLASS(mca_pml_csum_recv_request_t),
0,CACHE_LINE_SIZE,
mca_pml_csum.free_list_num,
mca_pml_csum.free_list_max,
mca_pml_csum.free_list_inc,
NULL );
mca_pml_csum.enabled = true;
return OMPI_SUCCESS;
}
int mca_pml_csum_add_comm(ompi_communicator_t* comm)
{
/* allocate pml specific comm data */
mca_pml_csum_comm_t* pml_comm = OBJ_NEW(mca_pml_csum_comm_t);
opal_list_item_t *item, *next_item;
mca_pml_csum_recv_frag_t* frag;
mca_pml_csum_comm_proc_t* pml_proc;
mca_pml_csum_match_hdr_t* hdr;
int i;
if (NULL == pml_comm) {
return OMPI_ERR_OUT_OF_RESOURCE;
}
mca_pml_csum_comm_init_size(pml_comm, comm->c_remote_group->grp_proc_count);
comm->c_pml_comm = pml_comm;
for( i = 0; i < comm->c_remote_group->grp_proc_count; i++ ) {
pml_comm->procs[i].ompi_proc = ompi_group_peer_lookup(comm->c_remote_group,i);
}
/* Grab all related messages from the non_existing_communicator pending queue */
for( item = opal_list_get_first(&mca_pml_csum.non_existing_communicator_pending);
item != opal_list_get_end(&mca_pml_csum.non_existing_communicator_pending);
item = next_item ) {
frag = (mca_pml_csum_recv_frag_t*)item;
next_item = opal_list_get_next(item);
hdr = &frag->hdr.hdr_match;
/* Is this fragment for the current communicator ? */
if( frag->hdr.hdr_match.hdr_ctx != comm->c_contextid )
continue;
/* As we now know we work on a fragment for this communicator
* we should remove it from the
* non_existing_communicator_pending list. */
opal_list_remove_item( &mca_pml_csum.non_existing_communicator_pending,
item );
add_fragment_to_unexpected:
/* We generate the MSG_ARRIVED event as soon as the PML is aware
* of a matching fragment arrival. Independing if it is received
* on the correct order or not. This will allow the tools to
* figure out if the messages are not received in the correct
* order (if multiple network interfaces).
*/
PERUSE_TRACE_MSG_EVENT(PERUSE_COMM_MSG_ARRIVED, comm,
hdr->hdr_src, hdr->hdr_tag, PERUSE_RECV);
/* There is no matching to be done, and no lock to be held on the communicator as
* we know at this point that the communicator has not yet been returned to the user.
* The only required protection is around the non_existing_communicator_pending queue.
* We just have to push the fragment into the unexpected list of the corresponding
* proc, or into the out-of-order (cant_match) list.
*/
pml_proc = &(pml_comm->procs[hdr->hdr_src]);
if( ((uint16_t)hdr->hdr_seq) == ((uint16_t)pml_proc->expected_sequence) ) {
/* We're now expecting the next sequence number. */
pml_proc->expected_sequence++;
opal_list_append( &pml_proc->unexpected_frags, (opal_list_item_t*)frag );
PERUSE_TRACE_MSG_EVENT(PERUSE_COMM_MSG_INSERT_IN_UNEX_Q, comm,
hdr->hdr_src, hdr->hdr_tag, PERUSE_RECV);
/* And now the ugly part. As some fragments can be inserted in the cant_match list,
* every time we succesfully add a fragment in the unexpected list we have to make
* sure the next one is not in the cant_match. Otherwise, we will endup in a deadlock
* situation as the cant_match is only checked when a new fragment is received from
* the network.
*/
for(frag = (mca_pml_csum_recv_frag_t *)opal_list_get_first(&pml_proc->frags_cant_match);
frag != (mca_pml_csum_recv_frag_t *)opal_list_get_end(&pml_proc->frags_cant_match);
frag = (mca_pml_csum_recv_frag_t *)opal_list_get_next(frag)) {
hdr = &frag->hdr.hdr_match;
/* If the message has the next expected seq from that proc... */
if(hdr->hdr_seq != pml_proc->expected_sequence)
continue;
opal_list_remove_item(&pml_proc->frags_cant_match, (opal_list_item_t*)frag);
goto add_fragment_to_unexpected;
}
} else {
opal_list_append( &pml_proc->frags_cant_match, (opal_list_item_t*)frag );
}
}
return OMPI_SUCCESS;
}
int mca_pml_csum_del_comm(ompi_communicator_t* comm)
{
OBJ_RELEASE(comm->c_pml_comm);
comm->c_pml_comm = NULL;
return OMPI_SUCCESS;
}
/*
* For each proc setup a datastructure that indicates the BTLs
* that can be used to reach the destination.
*
*/
int mca_pml_csum_add_procs(ompi_proc_t** procs, size_t nprocs)
{
opal_bitmap_t reachable;
int rc;
size_t i;
if(nprocs == 0)
return OMPI_SUCCESS;
/* we don't have any endpoint data we need to cache on the
ompi_proc_t, so set proc_pml to NULL */
for (i = 0 ; i < nprocs ; ++i) {
procs[i]->proc_pml = NULL;
}
OBJ_CONSTRUCT(&reachable, opal_bitmap_t);
rc = opal_bitmap_init(&reachable, (int)nprocs);
if(OMPI_SUCCESS != rc)
return rc;
/*
* JJH: Disable this in FT enabled builds since
* we use a wrapper PML. It will cause this check to
* return failure as all processes will return the wrapper PML
* component in use instead of the wrapped PML component underneath.
*/
#if OPAL_ENABLE_FT == 0
/* make sure remote procs are using the same PML as us */
if (OMPI_SUCCESS != (rc = mca_pml_base_pml_check_selected("csum",
procs,
nprocs))) {
return rc;
}
#endif
rc = mca_bml.bml_add_procs( nprocs,
procs,
&reachable );
if(OMPI_SUCCESS != rc)
goto cleanup_and_return;
rc = mca_bml.bml_register( MCA_PML_CSUM_HDR_TYPE_MATCH,
mca_pml_csum_recv_frag_callback_match,
NULL );
if(OMPI_SUCCESS != rc)
goto cleanup_and_return;
rc = mca_bml.bml_register( MCA_PML_CSUM_HDR_TYPE_RNDV,
mca_pml_csum_recv_frag_callback_rndv,
NULL );
if(OMPI_SUCCESS != rc)
goto cleanup_and_return;
rc = mca_bml.bml_register( MCA_PML_CSUM_HDR_TYPE_RGET,
mca_pml_csum_recv_frag_callback_rget,
NULL );
if(OMPI_SUCCESS != rc)
goto cleanup_and_return;
rc = mca_bml.bml_register( MCA_PML_CSUM_HDR_TYPE_ACK,
mca_pml_csum_recv_frag_callback_ack,
NULL );
if(OMPI_SUCCESS != rc)
goto cleanup_and_return;
rc = mca_bml.bml_register( MCA_PML_CSUM_HDR_TYPE_FRAG,
mca_pml_csum_recv_frag_callback_frag,
NULL );
if(OMPI_SUCCESS != rc)
goto cleanup_and_return;
rc = mca_bml.bml_register( MCA_PML_CSUM_HDR_TYPE_PUT,
mca_pml_csum_recv_frag_callback_put,
NULL );
if(OMPI_SUCCESS != rc)
goto cleanup_and_return;
rc = mca_bml.bml_register( MCA_PML_CSUM_HDR_TYPE_FIN,
mca_pml_csum_recv_frag_callback_fin,
NULL );
if(OMPI_SUCCESS != rc)
goto cleanup_and_return;
/* register error handlers */
rc = mca_bml.bml_register_error(mca_pml_csum_error_handler);
if(OMPI_SUCCESS != rc)
goto cleanup_and_return;
cleanup_and_return:
OBJ_DESTRUCT(&reachable);
return rc;
}
/*
* iterate through each proc and notify any PTLs associated
* with the proc that it is/has gone away
*/
int mca_pml_csum_del_procs(ompi_proc_t** procs, size_t nprocs)
{
return mca_bml.bml_del_procs(nprocs, procs);
}
/*
* diagnostics
*/
int mca_pml_csum_dump(struct ompi_communicator_t* comm, int verbose)
{
struct mca_pml_comm_t* pml_comm = comm->c_pml_comm;
int i;
/* iterate through all procs on communicator */
for( i = 0; i < (int)pml_comm->num_procs; i++ ) {
mca_pml_csum_comm_proc_t* proc = &pml_comm->procs[i];
mca_bml_base_endpoint_t* ep = (mca_bml_base_endpoint_t*)proc->ompi_proc->proc_bml;
size_t n;
opal_output(0, "[Rank %d]\n", i);
/* dump all receive queues */
/* dump all btls */
for(n=0; n<ep->btl_eager.arr_size; n++) {
mca_bml_base_btl_t* bml_btl = &ep->btl_eager.bml_btls[n];
bml_btl->btl->btl_dump(bml_btl->btl, bml_btl->btl_endpoint, verbose);
}
}
return OMPI_SUCCESS;
}
static void mca_pml_csum_fin_completion( mca_btl_base_module_t* btl,
struct mca_btl_base_endpoint_t* ep,
struct mca_btl_base_descriptor_t* des,
int status )
{
mca_bml_base_btl_t* bml_btl = (mca_bml_base_btl_t*) des->des_context;
/* check for pending requests */
MCA_PML_CSUM_PROGRESS_PENDING(bml_btl);
}
int mca_pml_csum_send_fin( ompi_proc_t* proc,
mca_bml_base_btl_t* bml_btl,
void *hdr_des,
uint8_t order,
uint32_t status )
{
mca_btl_base_descriptor_t* fin;
mca_pml_csum_fin_hdr_t* hdr;
int rc;
bool do_csum = mca_pml_csum.enable_csum &&
(bml_btl->btl_flags & MCA_BTL_FLAGS_NEED_CSUM);
mca_bml_base_alloc(bml_btl, &fin, order, sizeof(mca_pml_csum_fin_hdr_t),
MCA_BTL_DES_FLAGS_PRIORITY | MCA_BTL_DES_FLAGS_BTL_OWNERSHIP);
if(NULL == fin) {
MCA_PML_CSUM_ADD_FIN_TO_PENDING(proc, hdr_des, bml_btl, order, status);
return OMPI_ERR_OUT_OF_RESOURCE;
}
fin->des_cbfunc = mca_pml_csum_fin_completion;
fin->des_cbdata = NULL;
/* fill in header */
hdr = (mca_pml_csum_fin_hdr_t*)fin->des_src->seg_addr.pval;
hdr->hdr_common.hdr_flags = 0;
hdr->hdr_common.hdr_type = MCA_PML_CSUM_HDR_TYPE_FIN;
hdr->hdr_common.hdr_csum = 0;
hdr->hdr_des.pval = hdr_des;
hdr->hdr_fail = status;
hdr->hdr_common.hdr_csum = (do_csum ?
opal_csum16(hdr, sizeof(mca_pml_csum_fin_hdr_t)) : OPAL_CSUM_ZERO);
if(do_csum) {
OMPI_CSUM_CSUM_DEBUG((0, "%s: Sending \'FIN\' with header csum:0x%04x\n",
ORTE_NAME_PRINT(ORTE_PROC_MY_NAME), hdr->hdr_common.hdr_csum));
}
csum_hdr_hton(hdr, MCA_PML_CSUM_HDR_TYPE_FIN, proc);
/* queue request */
rc = mca_bml_base_send( bml_btl,
fin,
MCA_PML_CSUM_HDR_TYPE_FIN );
if( OPAL_LIKELY( rc >= 0 ) ) {
if( OPAL_LIKELY( 1 == rc ) ) {
MCA_PML_CSUM_PROGRESS_PENDING(bml_btl);
}
return OMPI_SUCCESS;
}
mca_bml_base_free(bml_btl, fin);
MCA_PML_CSUM_ADD_FIN_TO_PENDING(proc, hdr_des, bml_btl, order, status);
return OMPI_ERR_OUT_OF_RESOURCE;
}
void mca_pml_csum_process_pending_packets(mca_bml_base_btl_t* bml_btl)
{
mca_pml_csum_pckt_pending_t *pckt;
int32_t i, rc, s = (int32_t)opal_list_get_size(&mca_pml_csum.pckt_pending);
for(i = 0; i < s; i++) {
mca_bml_base_btl_t *send_dst = NULL;
OPAL_THREAD_LOCK(&mca_pml_csum.lock);
pckt = (mca_pml_csum_pckt_pending_t*)
opal_list_remove_first(&mca_pml_csum.pckt_pending);
OPAL_THREAD_UNLOCK(&mca_pml_csum.lock);
if(NULL == pckt)
break;
if(pckt->bml_btl != NULL &&
pckt->bml_btl->btl == bml_btl->btl) {
send_dst = pckt->bml_btl;
} else {
send_dst = mca_bml_base_btl_array_find(
&pckt->proc->proc_bml->btl_eager, bml_btl->btl);
}
if(NULL == send_dst) {
OPAL_THREAD_LOCK(&mca_pml_csum.lock);
opal_list_append(&mca_pml_csum.pckt_pending,
(opal_list_item_t*)pckt);
OPAL_THREAD_UNLOCK(&mca_pml_csum.lock);
continue;
}
switch(pckt->hdr.hdr_common.hdr_type) {
case MCA_PML_CSUM_HDR_TYPE_ACK:
rc = mca_pml_csum_recv_request_ack_send_btl(pckt->proc,
send_dst,
pckt->hdr.hdr_ack.hdr_src_req.lval,
pckt->hdr.hdr_ack.hdr_dst_req.pval,
pckt->hdr.hdr_ack.hdr_send_offset,
pckt->hdr.hdr_common.hdr_flags & MCA_PML_CSUM_HDR_FLAGS_NORDMA);
MCA_PML_CSUM_PCKT_PENDING_RETURN(pckt);
if(OMPI_ERR_OUT_OF_RESOURCE == rc) {
MCA_PML_CSUM_ADD_ACK_TO_PENDING(pckt->proc,
pckt->hdr.hdr_ack.hdr_src_req.lval,
pckt->hdr.hdr_ack.hdr_dst_req.pval,
pckt->hdr.hdr_ack.hdr_send_offset);
return;
}
break;
case MCA_PML_CSUM_HDR_TYPE_FIN:
rc = mca_pml_csum_send_fin(pckt->proc, send_dst,
pckt->hdr.hdr_fin.hdr_des.pval,
pckt->order,
pckt->hdr.hdr_fin.hdr_fail);
MCA_PML_CSUM_PCKT_PENDING_RETURN(pckt);
if(OMPI_ERR_OUT_OF_RESOURCE == rc)
return;
break;
default:
opal_output(0, "[%s:%d] wrong header type\n",
__FILE__, __LINE__);
break;
}
}
}
void mca_pml_csum_process_pending_rdma(void)
{
mca_pml_csum_rdma_frag_t* frag;
int32_t i, rc, s = (int32_t)opal_list_get_size(&mca_pml_csum.rdma_pending);
for(i = 0; i < s; i++) {
OPAL_THREAD_LOCK(&mca_pml_csum.lock);
frag = (mca_pml_csum_rdma_frag_t*)
opal_list_remove_first(&mca_pml_csum.rdma_pending);
OPAL_THREAD_UNLOCK(&mca_pml_csum.lock);
if(NULL == frag)
break;
if(frag->rdma_state == MCA_PML_CSUM_RDMA_PUT) {
frag->retries++;
rc = mca_pml_csum_send_request_put_frag(frag);
} else {
rc = mca_pml_csum_recv_request_get_frag(frag);
}
if(OMPI_ERR_OUT_OF_RESOURCE == rc)
break;
}
}
void mca_pml_csum_error_handler(
struct mca_btl_base_module_t* btl,
int32_t flags) {
orte_errmgr.abort(-1, NULL);
}
#if OPAL_ENABLE_FT == 0
int mca_pml_csum_ft_event( int state ) {
return OMPI_SUCCESS;
}
#else
int mca_pml_csum_ft_event( int state )
{
static bool first_continue_pass = false;
ompi_proc_t** procs = NULL;
size_t num_procs;
int ret, p;
if(OPAL_CRS_CHECKPOINT == state) {
if( opal_cr_timing_barrier_enabled ) {
OPAL_CR_SET_TIMER(OPAL_CR_TIMER_CRCPBR1);
orte_grpcomm.barrier();
}
OPAL_CR_SET_TIMER(OPAL_CR_TIMER_P2P0);
}
else if(OPAL_CRS_CONTINUE == state) {
first_continue_pass = !first_continue_pass;
if( !first_continue_pass ) {
if( opal_cr_timing_barrier_enabled ) {
OPAL_CR_SET_TIMER(OPAL_CR_TIMER_COREBR0);
orte_grpcomm.barrier();
}
OPAL_CR_SET_TIMER(OPAL_CR_TIMER_P2P2);
}
if( ompi_cr_continue_like_restart && !first_continue_pass ) {
/*
* Get a list of processes
*/
procs = ompi_proc_all(&num_procs);
if(NULL == procs) {
return OMPI_ERR_OUT_OF_RESOURCE;
}
/*
* Refresh the proc structure, and publish our proc info in the modex.
* NOTE: Do *not* call ompi_proc_finalize as there are many places in
* the code that point to indv. procs in this strucutre. For our
* needs here we only need to fix up the modex, bml and pml
* references.
*/
if (OMPI_SUCCESS != (ret = ompi_proc_refresh())) {
opal_output(0,
"pml:csum: ft_event(Restart): proc_refresh Failed %d",
ret);
for(p = 0; p < (int)num_procs; ++p) {
OBJ_RELEASE(procs[p]);
}
free (procs);
return ret;
}
}
}
else if(OPAL_CRS_RESTART_PRE == state ) {
/* Nothing here */
}
else if(OPAL_CRS_RESTART == state ) {
/*
* Get a list of processes
*/
procs = ompi_proc_all(&num_procs);
if(NULL == procs) {
return OMPI_ERR_OUT_OF_RESOURCE;
}
/*
* Clean out the modex information since it is invalid now.
* orte_grpcomm.purge_proc_attrs();
* This happens at the ORTE level, so doing it again here will cause
* some issues with socket caching.
*/
/*
* Refresh the proc structure, and publish our proc info in the modex.
* NOTE: Do *not* call ompi_proc_finalize as there are many places in
* the code that point to indv. procs in this strucutre. For our
* needs here we only need to fix up the modex, bml and pml
* references.
*/
if (OMPI_SUCCESS != (ret = ompi_proc_refresh())) {
opal_output(0,
"pml:csum: ft_event(Restart): proc_refresh Failed %d",
ret);
for(p = 0; p < (int)num_procs; ++p) {
OBJ_RELEASE(procs[p]);
}
free (procs);
return ret;
}
}
else if(OPAL_CRS_TERM == state ) {
;
}
else {
;
}
/* Call the BML
* BML is expected to call ft_event in
* - BTL(s)
* - MPool(s)
*/
if( OMPI_SUCCESS != (ret = mca_bml.bml_ft_event(state))) {
opal_output(0, "pml:base: ft_event: BML ft_event function failed: %d\n",
ret);
}
if(OPAL_CRS_CHECKPOINT == state) {
OPAL_CR_SET_TIMER(OPAL_CR_TIMER_P2P1);
if( opal_cr_timing_barrier_enabled ) {
OPAL_CR_SET_TIMER(OPAL_CR_TIMER_P2PBR0);
/* JJH Cannot barrier here due to progress engine -- orte_grpcomm.barrier();*/
}
}
else if(OPAL_CRS_CONTINUE == state) {
if( !first_continue_pass ) {
if( opal_cr_timing_barrier_enabled ) {
OPAL_CR_SET_TIMER(OPAL_CR_TIMER_P2PBR1);
orte_grpcomm.barrier();
}
OPAL_CR_SET_TIMER(OPAL_CR_TIMER_P2P3);
}
if( ompi_cr_continue_like_restart && !first_continue_pass ) {
/*
* Exchange the modex information once again.
* BTLs will have republished their modex information.
*/
if (OMPI_SUCCESS != (ret = orte_grpcomm.modex(NULL))) {
opal_output(0,
"pml:csum: ft_event(Restart): Failed orte_grpcomm.modex() = %d",
ret);
return ret;
}
/*
* Startup the PML stack now that the modex is running again
* Add the new procs (BTLs redo modex recv's)
*/
if( OMPI_SUCCESS != (ret = mca_pml_csum_add_procs(procs, num_procs) ) ) {
opal_output(0, "pml:csum: ft_event(Restart): Failed in add_procs (%d)", ret);
return ret;
}
/* Is this barrier necessary ? JJH */
if (OMPI_SUCCESS != (ret = orte_grpcomm.barrier())) {
opal_output(0, "pml:csum: ft_event(Restart): Failed in orte_grpcomm.barrier (%d)", ret);
return ret;
}
if( NULL != procs ) {
for(p = 0; p < (int)num_procs; ++p) {
OBJ_RELEASE(procs[p]);
}
free(procs);
procs = NULL;
}
}
if( !first_continue_pass ) {
if( opal_cr_timing_barrier_enabled ) {
OPAL_CR_SET_TIMER(OPAL_CR_TIMER_P2PBR2);
orte_grpcomm.barrier();
}
OPAL_CR_SET_TIMER(OPAL_CR_TIMER_CRCP1);
}
}
else if(OPAL_CRS_RESTART_PRE == state ) {
/* Nothing here */
}
else if(OPAL_CRS_RESTART == state ) {
/*
* Exchange the modex information once again.
* BTLs will have republished their modex information.
*/
if (OMPI_SUCCESS != (ret = orte_grpcomm.modex(NULL))) {
opal_output(0,
"pml:csum: ft_event(Restart): Failed orte_grpcomm.modex() = %d",
ret);
return ret;
}
/*
* Startup the PML stack now that the modex is running again
* Add the new procs (BTLs redo modex recv's)
*/
if( OMPI_SUCCESS != (ret = mca_pml_csum_add_procs(procs, num_procs) ) ) {
opal_output(0, "pml:csum: ft_event(Restart): Failed in add_procs (%d)", ret);
return ret;
}
/* Is this barrier necessary ? JJH */
if (OMPI_SUCCESS != (ret = orte_grpcomm.barrier())) {
opal_output(0, "pml:csum: ft_event(Restart): Failed in orte_grpcomm.barrier (%d)", ret);
return ret;
}
if( NULL != procs ) {
for(p = 0; p < (int)num_procs; ++p) {
OBJ_RELEASE(procs[p]);
}
free(procs);
procs = NULL;
}
}
else if(OPAL_CRS_TERM == state ) {
;
}
else {
;
}
return OMPI_SUCCESS;
}
#endif /* OPAL_ENABLE_FT */
int mca_pml_csum_com_btl_comp(const void *v1, const void *v2)
{
const mca_pml_csum_com_btl_t *b1 = (const mca_pml_csum_com_btl_t *) v1;
const mca_pml_csum_com_btl_t *b2 = (const mca_pml_csum_com_btl_t *) v2;
if(b1->bml_btl->btl_weight < b2->bml_btl->btl_weight)
return 1;
if(b1->bml_btl->btl_weight > b2->bml_btl->btl_weight)
return -1;
return 0;
}