27cea44a9c
* Make sure that the pval always writes to the correct portion of the
lval. This only matters on 32 bit big endian machines.
* On 32 bit machines when assigning to pval, the other 4 bytes of lval
weren't being written, which could lead to bogus data
We use macros so that there aren't casts all over the code and the pval
assignment can occur to the correct 4 bytes. Refs trac:587
This commit was SVN r12974.
The following Trac tickets were found above:
Ticket 587 --> https://svn.open-mpi.org/trac/ompi/ticket/587
217 строки
7.7 KiB
C
217 строки
7.7 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) 2004-2006 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) 2004-2006 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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* $COPYRIGHT$
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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 "pml_dr_vfrag.h"
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#include "pml_dr_sendreq.h"
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#include "ompi/mca/bml/base/base.h"
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#include "orte/mca/errmgr/errmgr.h"
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static void mca_pml_dr_vfrag_wdog_timeout(int fd, short event, void* vfrag);
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static void mca_pml_dr_vfrag_ack_timeout(int fd, short event, void* vfrag);
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static void mca_pml_dr_vfrag_construct(mca_pml_dr_vfrag_t* vfrag)
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{
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OMPI_PTR_SET_PVAL(vfrag->vf_send, NULL);
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OMPI_PTR_SET_PVAL(vfrag->vf_recv, NULL);
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vfrag->vf_id = 0;
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vfrag->vf_idx = 0;
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vfrag->vf_len = 0;
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vfrag->vf_offset = 0;
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vfrag->vf_size = 0;
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vfrag->vf_max_send_size = 0;
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vfrag->vf_ack = 0;
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vfrag->vf_mask = 1;
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vfrag->vf_state = 0;
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vfrag->vf_wdog_tv = mca_pml_dr.wdog_timer;
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vfrag->vf_ack_tv = mca_pml_dr.ack_timer;
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vfrag->vf_wdog_cnt = 0;
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vfrag->vf_ack_cnt = 0;
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opal_evtimer_set(&vfrag->vf_wdog_ev, mca_pml_dr_vfrag_wdog_timeout, (void*) vfrag);
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opal_evtimer_set(&vfrag->vf_ack_ev, mca_pml_dr_vfrag_ack_timeout, (void*) vfrag);
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}
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static void mca_pml_dr_vfrag_destruct(mca_pml_dr_vfrag_t* vfrag)
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{
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}
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OBJ_CLASS_INSTANCE(
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mca_pml_dr_vfrag_t,
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ompi_free_list_item_t,
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mca_pml_dr_vfrag_construct,
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mca_pml_dr_vfrag_destruct
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);
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/**
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* The wdog timer expired, better do something about it, like resend the current part of the vfrag
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*/
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static void mca_pml_dr_vfrag_wdog_timeout(int fd, short event, void* data)
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{
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mca_pml_dr_vfrag_t* vfrag = (mca_pml_dr_vfrag_t*) data;
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mca_pml_dr_send_request_t* sendreq = (mca_pml_dr_send_request_t*)
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OMPI_PTR_GET_PVAL(vfrag->vf_send);
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MCA_PML_DR_DEBUG(0,(0, "%s:%d:%s: wdog timeout: 0x%08x vid: %d",
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__FILE__, __LINE__, __func__, vfrag, vfrag->vf_id));
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/* update pending counts */
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OPAL_THREAD_ADD_SIZE_T(&sendreq->req_pipeline_depth,-vfrag->vf_pending);
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OPAL_THREAD_ADD64(&vfrag->vf_pending,-vfrag->vf_pending);
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/* check for hung btl */
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if(++vfrag->vf_wdog_cnt == mca_pml_dr.wdog_retry_max) {
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/* declare btl dead */
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if(vfrag->bml_btl->btl) {
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opal_output(0, "%s:%d:%s: failing BTL: %s", __FILE__, __LINE__, __func__,
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vfrag->bml_btl->btl->btl_component->btl_version.mca_component_name);
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mca_pml_dr_sendreq_cleanup_active(vfrag->bml_btl->btl);
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mca_bml.bml_del_btl(vfrag->bml_btl->btl);
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} else {
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opal_output(0, "%s:%d:%s: failing already failed BTL", __FILE__, __LINE__, __func__);
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}
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mca_pml_dr_vfrag_reset(vfrag);
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} else if(NULL == vfrag->bml_btl->btl) {
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mca_pml_dr_vfrag_reset(vfrag);
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}
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/* back off watchdog timer */
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vfrag->vf_wdog_tv.tv_sec =
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mca_pml_dr.wdog_timer.tv_sec +
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mca_pml_dr.wdog_timer.tv_sec * mca_pml_dr.wdog_timer_multiplier *
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vfrag->vf_wdog_cnt;
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vfrag->vf_wdog_tv.tv_usec =
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mca_pml_dr.wdog_timer.tv_usec +
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mca_pml_dr.wdog_timer.tv_usec * mca_pml_dr.wdog_timer_multiplier *
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vfrag->vf_wdog_cnt;
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/* reschedule vfrag */
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mca_pml_dr_vfrag_reschedule(vfrag);
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}
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/**
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* The ack timer expired, better do something about it, like resend the entire vfrag?
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*/
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static void mca_pml_dr_vfrag_ack_timeout(int fd, short event, void* data)
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{
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mca_pml_dr_vfrag_t* vfrag = (mca_pml_dr_vfrag_t*) data;
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MCA_PML_DR_DEBUG(0,(0, "%s:%d:%s: ack timeout: %0x08x",
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__FILE__, __LINE__, __func__, vfrag));
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/* stop ack timer */
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MCA_PML_DR_VFRAG_ACK_STOP(vfrag);
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/* check for hung btl */
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if(++vfrag->vf_ack_cnt == mca_pml_dr.ack_retry_max) {
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/* declare btl dead */
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if(vfrag->bml_btl->btl) {
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opal_output(0, "%s:%d:%s: failing BTL: %s", __FILE__, __LINE__, __func__,
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vfrag->bml_btl->btl->btl_component->btl_version.mca_component_name);
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mca_pml_dr_sendreq_cleanup_active(vfrag->bml_btl->btl);
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mca_bml.bml_del_btl(vfrag->bml_btl->btl);
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} else {
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opal_output(0, "%s:%d:%s: failing already failed BTL", __FILE__, __LINE__, __func__);
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}
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mca_pml_dr_vfrag_reset(vfrag);
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} else if(NULL == vfrag->bml_btl->btl) {
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mca_pml_dr_vfrag_reset(vfrag);
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}
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/* back off ack timer */
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vfrag->vf_ack_tv.tv_sec =
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mca_pml_dr.ack_timer.tv_sec +
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mca_pml_dr.ack_timer.tv_sec * mca_pml_dr.ack_timer_multiplier *
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vfrag->vf_ack_cnt;
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vfrag->vf_ack_tv.tv_usec =
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mca_pml_dr.ack_timer.tv_usec +
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mca_pml_dr.ack_timer.tv_usec * mca_pml_dr.ack_timer_multiplier *
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vfrag->vf_ack_cnt;
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/* reschedule vfrag */
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mca_pml_dr_vfrag_reschedule(vfrag);
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}
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/**
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* Vfrag failure - declare btl dead and try to resend on an alternate btl
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*/
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void mca_pml_dr_vfrag_reset(mca_pml_dr_vfrag_t* vfrag)
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{
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mca_pml_dr_send_request_t* sendreq = (mca_pml_dr_send_request_t*)
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OMPI_PTR_GET_PVAL(vfrag->vf_send);
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/* update counters - give new BTL a fair chance :-) */
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vfrag->vf_ack_cnt = 0;
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vfrag->vf_wdog_cnt = 0;
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/* lookup new bml_btl data structure */
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sendreq->req_endpoint = (mca_pml_dr_endpoint_t*)sendreq->req_send.req_base.req_proc->proc_pml;
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/* make sure a path is available */
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if(mca_bml_base_btl_array_get_size(&sendreq->req_endpoint->bml_endpoint->btl_eager) == 0 ||
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mca_bml_base_btl_array_get_size(&sendreq->req_endpoint->bml_endpoint->btl_eager) == 0) {
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opal_output(0, "%s:%d:%s: no path to peer", __FILE__, __LINE__, __func__);
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orte_errmgr.abort();
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}
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if(vfrag->vf_offset == 0) {
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vfrag->bml_btl = mca_bml_base_btl_array_get_next(&sendreq->req_endpoint->bml_endpoint->btl_eager);
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} else {
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vfrag->bml_btl = mca_bml_base_btl_array_get_next(&sendreq->req_endpoint->bml_endpoint->btl_send);
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}
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opal_output(0, "%s:%d:%s: selected new BTL: %s", __FILE__, __LINE__, __func__,
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vfrag->bml_btl->btl->btl_component->btl_version.mca_component_name);
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}
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/**
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* Reschedule vfrag that has timed out
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*/
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void mca_pml_dr_vfrag_reschedule(mca_pml_dr_vfrag_t* vfrag)
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{
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mca_pml_dr_send_request_t* sendreq = (mca_pml_dr_send_request_t*)
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OMPI_PTR_GET_PVAL(vfrag->vf_send);
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/* start wdog timer */
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MCA_PML_DR_VFRAG_WDOG_START(vfrag);
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/* first frag within send request */
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OPAL_THREAD_LOCK(&ompi_request_lock);
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if(vfrag == &sendreq->req_vfrag0) {
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if(vfrag->vf_state & MCA_PML_DR_VFRAG_RNDV) {
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MCA_PML_DR_SEND_REQUEST_RNDV_PROBE(sendreq, vfrag);
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} else {
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MCA_PML_DR_SEND_REQUEST_EAGER_RETRY(sendreq, vfrag);
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}
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OPAL_THREAD_UNLOCK(&ompi_request_lock);
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/* reschedule unacked portion of vfrag */
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} else {
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MCA_PML_DR_SEND_REQUEST_VFRAG_RETRANS(sendreq, vfrag);
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OPAL_THREAD_UNLOCK(&ompi_request_lock);
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mca_pml_dr_send_request_schedule(sendreq);
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}
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}
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