7dfdf3e907
1. Allow MX bonding via btl_mx_bonding MCA parameter. With this on, Open MPI suppose that lib MX will do the bonding, and we will only return one BTL. Otherwise, we return as many as devices. 2. Decrease the memory footprint, by cleaning up what we store about the peers and how we store it. 3. Allow multiple MX routes that share the same mapper. In this particular case we will link by their nic_id. 4. Allow multiple MX routes with multiple mappers. In this case we match the NICs based on the last 6 digits of the mapper MAC. 5. Increase the size of the eager and rendez-vous eager limits in the case where we are unable to register an unexpected callback with MX. 6. Increase the default max number of MX fragments. 7. Increase the max number of MX BTLs. 8. Only allow mx_if_include and mx_if_exclude if we have acess to the mapper. This commit was SVN r19788.
703 строки
24 KiB
C
703 строки
24 KiB
C
/*
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* Copyright (c) 2004-2007 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) 2004-2008 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 "opal/util/if.h"
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#if OPAL_ENABLE_FT == 1
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#include "ompi/runtime/ompi_cr.h"
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#endif
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#include "btl_mx.h"
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#include "btl_mx_frag.h"
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#include "btl_mx_proc.h"
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#include "btl_mx_endpoint.h"
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#include "ompi/datatype/convertor.h"
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#include "opal/prefetch.h"
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/**
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*
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*/
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int mca_btl_mx_add_procs( struct mca_btl_base_module_t* btl,
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size_t nprocs,
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struct ompi_proc_t** ompi_procs,
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struct mca_btl_base_endpoint_t** peers,
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ompi_bitmap_t* reachable )
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{
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mca_btl_mx_module_t* mx_btl = (mca_btl_mx_module_t*)btl;
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int i, rc;
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for( i = 0; i < (int) nprocs; i++ ) {
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struct ompi_proc_t* ompi_proc = ompi_procs[i];
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mca_btl_mx_proc_t* mx_proc;
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mca_btl_base_endpoint_t* mx_endpoint;
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/**
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* By default don't allow communications with self nor with any
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* other processes on the same node. The BTL self and sm are
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* supposed to take care of such communications.
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*/
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if( ompi_procs[i]->proc_flags & OMPI_PROC_FLAG_LOCAL ) {
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if( ompi_procs[i] == ompi_proc_local_proc ) {
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if( 0 == mca_btl_mx_component.mx_support_self )
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continue;
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} else {
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if( 0 == mca_btl_mx_component.mx_support_sharedmem )
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continue;
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}
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}
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if( NULL == (mx_proc = mca_btl_mx_proc_create(ompi_proc)) ) {
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continue;
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}
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OPAL_THREAD_LOCK(&mx_proc->proc_lock);
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/* The btl_proc datastructure is shared by all MX BTL
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* instances that are trying to reach this destination.
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* Cache the peer instance on the btl_proc.
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*/
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mx_endpoint = OBJ_NEW(mca_btl_mx_endpoint_t);
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if(NULL == mx_endpoint) {
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OPAL_THREAD_UNLOCK(&mx_proc->proc_lock);
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return OMPI_ERR_OUT_OF_RESOURCE;
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}
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mx_endpoint->endpoint_btl = mx_btl;
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rc = mca_btl_mx_proc_insert( mx_proc, mx_endpoint );
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if( rc != OMPI_SUCCESS ) {
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OBJ_RELEASE(mx_endpoint);
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OBJ_RELEASE(mx_proc);
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OPAL_THREAD_UNLOCK(&mx_proc->proc_lock);
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continue;
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}
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ompi_bitmap_set_bit(reachable, i);
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OPAL_THREAD_UNLOCK(&mx_proc->proc_lock);
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peers[i] = mx_endpoint;
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}
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return OMPI_SUCCESS;
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}
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int mca_btl_mx_del_procs( struct mca_btl_base_module_t* btl,
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size_t nprocs,
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struct ompi_proc_t** procs,
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struct mca_btl_base_endpoint_t** peers )
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{
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opal_output( 0, "MX BTL delete procs\n" );
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/* TODO */
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return OMPI_SUCCESS;
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}
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/**
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* Register callback function to support send/recv semantics
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*/
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int mca_btl_mx_register( struct mca_btl_base_module_t* btl,
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mca_btl_base_tag_t tag,
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mca_btl_base_module_recv_cb_fn_t cbfunc,
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void* cbdata )
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{
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mca_btl_mx_module_t* mx_btl = (mca_btl_mx_module_t*) btl;
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#if 0
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if( (NULL != cbfunc) && ( 0 == mca_btl_mx_component.mx_use_unexpected) ) {
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#endif
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if( NULL != cbfunc ) {
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mca_btl_mx_frag_t* frag;
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mx_return_t mx_return;
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mx_segment_t mx_segment;
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int i, rc;
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/* Post the receives if there is no unexpected handler */
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for( i = 0; i < mca_btl_mx_component.mx_max_posted_recv; i++ ) {
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MCA_BTL_MX_FRAG_ALLOC_EAGER( mx_btl, frag, rc );
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if( NULL == frag ) {
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opal_output( 0, "mca_btl_mx_register: unable to allocate more eager fragments\n" );
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if( 0 == i ) {
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return OMPI_ERROR;
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}
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break; /* some fragments are already registered. Try to continue... */
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}
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frag->base.des_dst = frag->segment;
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frag->base.des_dst_cnt = 1;
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frag->base.des_src = NULL;
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frag->base.des_src_cnt = 0;
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frag->mx_frag_list = NULL;
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frag->type = MCA_BTL_MX_RECV;
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mx_segment.segment_ptr = (void*)(frag+1);
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mx_segment.segment_length = mx_btl->super.btl_eager_limit;
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mx_return = mx_irecv( mx_btl->mx_endpoint, &mx_segment, 1,
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0x01ULL, BTL_MX_RECV_MASK,
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frag, &(frag->mx_request) );
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if( MX_SUCCESS != mx_return ) {
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opal_output( 0, "mca_btl_mx_register: mx_irecv failed with status %d (%s)\n",
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mx_return, mx_strerror(mx_return) );
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MCA_BTL_MX_FRAG_RETURN( mx_btl, frag );
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return OMPI_ERROR;
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}
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}
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}
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return OMPI_SUCCESS;
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}
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/**
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* Allocate a segment.
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*
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* @param btl (IN) BTL module
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* @param size (IN) Request segment size.
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*/
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mca_btl_base_descriptor_t* mca_btl_mx_alloc( struct mca_btl_base_module_t* btl,
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struct mca_btl_base_endpoint_t* endpoint,
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uint8_t order,
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size_t size,
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uint32_t flags)
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{
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mca_btl_mx_module_t* mx_btl = (mca_btl_mx_module_t*) btl;
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mca_btl_mx_frag_t* frag;
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int rc;
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MCA_BTL_MX_FRAG_ALLOC_EAGER(mx_btl, frag, rc);
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if( OPAL_UNLIKELY(NULL == frag) ) {
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return NULL;
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}
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frag->segment[0].seg_len =
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size <= mx_btl->super.btl_eager_limit ?
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size : mx_btl->super.btl_eager_limit ;
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frag->segment[0].seg_addr.pval = (void*)(frag+1);
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frag->base.des_src = frag->segment;
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frag->base.des_src_cnt = 1;
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frag->base.des_flags = flags;
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frag->base.order = MCA_BTL_NO_ORDER;
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return (mca_btl_base_descriptor_t*)frag;
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}
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/**
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* Return a segment
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*/
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int mca_btl_mx_free( struct mca_btl_base_module_t* btl,
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mca_btl_base_descriptor_t* des )
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{
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mca_btl_mx_frag_t* frag = (mca_btl_mx_frag_t*)des;
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assert( MCA_BTL_MX_SEND == frag->type );
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MCA_BTL_MX_FRAG_RETURN(btl, frag);
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return OMPI_SUCCESS;
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}
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/**
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* Pack data and return a descriptor that can be
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* used for send/put.
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*
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* @param btl (IN) BTL module
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* @param peer (IN) BTL peer addressing
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*/
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mca_btl_base_descriptor_t*
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mca_btl_mx_prepare_src( struct mca_btl_base_module_t* btl,
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struct mca_btl_base_endpoint_t* endpoint,
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struct mca_mpool_base_registration_t* registration,
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struct ompi_convertor_t* convertor,
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uint8_t order,
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size_t reserve,
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size_t* size,
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uint32_t flags)
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{
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mca_btl_mx_frag_t* frag;
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struct iovec iov;
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uint32_t iov_count = 1;
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size_t max_data;
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int rc;
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max_data = btl->btl_eager_limit - reserve;
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if( (*size) < max_data ) {
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max_data = *size;
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}
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/* If the data is contiguous we can use directly the pointer
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* to the user memory.
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*/
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if( 0 == ompi_convertor_need_buffers(convertor) ) {
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/**
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* let the convertor figure out the correct pointer depending
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* on the data layout
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*/
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iov.iov_base = NULL;
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if( 0 == reserve ) {
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MCA_BTL_MX_FRAG_ALLOC_USER(btl, frag, rc);
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if( OPAL_UNLIKELY(NULL == frag) ) {
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return NULL;
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}
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max_data = *size;
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frag->base.des_src_cnt = 1;
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} else {
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MCA_BTL_MX_FRAG_ALLOC_EAGER( mx_btl, frag, rc );
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if( OPAL_UNLIKELY(NULL == frag) ) {
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return NULL;
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}
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frag->base.des_src_cnt = 2;
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}
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} else {
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MCA_BTL_MX_FRAG_ALLOC_EAGER( mx_btl, frag, rc );
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if( OPAL_UNLIKELY(NULL == frag) ) {
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return NULL;
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}
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frag->base.des_src_cnt = 1;
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iov.iov_base = (void*)((unsigned char*)frag->segment[0].seg_addr.pval + reserve);
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}
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iov.iov_len = max_data;
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(void)ompi_convertor_pack(convertor, &iov, &iov_count, &max_data );
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*size = max_data;
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if( 1 == frag->base.des_src_cnt ) {
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frag->segment[0].seg_len = reserve + max_data;
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if( 0 == reserve )
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frag->segment[0].seg_addr.pval = iov.iov_base;
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} else {
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frag->segment[0].seg_len = reserve;
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frag->segment[1].seg_len = max_data;
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frag->segment[1].seg_addr.pval = iov.iov_base;
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}
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frag->base.des_src = frag->segment;
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frag->base.des_flags = flags;
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frag->base.order = MCA_BTL_NO_ORDER;
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return &frag->base;
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}
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/**
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* Prepare a descriptor for send/rdma using the supplied
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* convertor. If the convertor references data that is contigous,
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* the descriptor may simply point to the user buffer. Otherwise,
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* this routine is responsible for allocating buffer space and
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* packing if required.
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*
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* @param btl (IN) BTL module
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* @param endpoint (IN) BTL peer addressing
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* @param convertor (IN) Data type convertor
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* @param reserve (IN) Additional bytes requested by upper layer to precede user data
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* @param size (IN/OUT) Number of bytes to prepare (IN), number of bytes actually prepared (OUT)
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*/
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mca_btl_base_descriptor_t* mca_btl_mx_prepare_dst( struct mca_btl_base_module_t* btl,
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struct mca_btl_base_endpoint_t* endpoint,
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struct mca_mpool_base_registration_t* registration,
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struct ompi_convertor_t* convertor,
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uint8_t order,
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size_t reserve,
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size_t* size,
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uint32_t flags)
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{
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mca_btl_mx_module_t* mx_btl = (mca_btl_mx_module_t*)btl;
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mca_btl_mx_frag_t* frag;
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mx_return_t mx_return;
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mx_segment_t mx_segment;
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int rc;
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MCA_BTL_MX_FRAG_ALLOC_USER(btl, frag, rc);
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if( OPAL_UNLIKELY(NULL == frag) ) {
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return NULL;
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}
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frag->segment[0].seg_len = *size;
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ompi_convertor_get_current_pointer( convertor, (void**)&(frag->segment[0].seg_addr.pval) );
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frag->segment[0].seg_key.key64 = (uint64_t)(intptr_t)frag;
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mx_segment.segment_ptr = frag->segment[0].seg_addr.pval;
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mx_segment.segment_length = frag->segment[0].seg_len;
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mx_return = mx_irecv( mx_btl->mx_endpoint, &mx_segment, 1,
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frag->segment[0].seg_key.key64,
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BTL_MX_PUT_MASK, NULL, &(frag->mx_request) );
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if( OPAL_UNLIKELY(MX_SUCCESS != mx_return) ) {
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opal_output( 0, "Fail to re-register a fragment with the MX NIC ...\n" );
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MCA_BTL_MX_FRAG_RETURN( btl, frag );
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return NULL;
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}
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#ifdef HAVE_MX_FORGET
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{
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mx_return = mx_forget( mx_btl->mx_endpoint, &(frag->mx_request) );
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if( OPAL_UNLIKELY(MX_SUCCESS != mx_return) ) {
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opal_output( 0, "mx_forget failed in mca_btl_mx_prepare_dst with error %d (%s)\n",
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mx_return, mx_strerror(mx_return) );
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return NULL;
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}
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}
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#endif
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/* Allow the fragment to be recycled using the mca_btl_mx_free function */
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frag->type = MCA_BTL_MX_SEND;
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frag->base.des_dst = frag->segment;
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frag->base.des_dst_cnt = 1;
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frag->base.des_flags = flags;
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frag->base.order = MCA_BTL_NO_ORDER;
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return &frag->base;
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}
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/**
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* Initiate an asynchronous put.
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*
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* @param btl (IN) BTL module
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* @param endpoint (IN) BTL addressing information
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* @param descriptor (IN) Description of the data to be transferred
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*/
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static int mca_btl_mx_put( struct mca_btl_base_module_t* btl,
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struct mca_btl_base_endpoint_t* endpoint,
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struct mca_btl_base_descriptor_t* descriptor )
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{
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mca_btl_mx_module_t* mx_btl = (mca_btl_mx_module_t*)btl;
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mca_btl_mx_frag_t* frag = (mca_btl_mx_frag_t*)descriptor;
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mx_segment_t mx_segment[2];
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mx_return_t mx_return;
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uint32_t i = 0;
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if( OPAL_UNLIKELY(MCA_BTL_MX_CONNECTED != ((mca_btl_mx_endpoint_t*)endpoint)->status) ) {
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if( MCA_BTL_MX_NOT_REACHEABLE == ((mca_btl_mx_endpoint_t*)endpoint)->status )
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return OMPI_ERROR;
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if( MCA_BTL_MX_CONNECTION_PENDING == ((mca_btl_mx_endpoint_t*)endpoint)->status )
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return OMPI_ERR_OUT_OF_RESOURCE;
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if( OMPI_SUCCESS != mca_btl_mx_proc_connect( (mca_btl_mx_endpoint_t*)endpoint ) )
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return OMPI_ERROR;
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}
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frag->endpoint = endpoint;
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frag->type = MCA_BTL_MX_SEND;
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descriptor->des_flags |= MCA_BTL_DES_SEND_ALWAYS_CALLBACK;
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do {
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mx_segment[i].segment_ptr = descriptor->des_src[i].seg_addr.pval;
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mx_segment[i].segment_length = descriptor->des_src[i].seg_len;
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} while (++i < descriptor->des_src_cnt);
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mx_return = mx_isend( mx_btl->mx_endpoint, mx_segment, descriptor->des_src_cnt,
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endpoint->mx_peer_addr,
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descriptor->des_dst[0].seg_key.key64, frag,
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&frag->mx_request );
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if( OPAL_UNLIKELY(MX_SUCCESS != mx_return) ) {
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opal_output( 0, "mx_isend fails with error %s\n", mx_strerror(mx_return) );
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return OMPI_ERROR;
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}
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return OMPI_SUCCESS;
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}
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/**
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* Initiate an inline send to the peer. If failure then return a descriptor.
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*
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* @param btl (IN) BTL module
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* @param peer (IN) BTL peer addressing
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*/
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static int mca_btl_mx_sendi( struct mca_btl_base_module_t* btl,
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struct mca_btl_base_endpoint_t* endpoint,
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struct ompi_convertor_t* convertor,
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void* header,
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size_t header_size,
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size_t payload_size,
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uint8_t order,
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uint32_t flags,
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mca_btl_base_tag_t tag,
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mca_btl_base_descriptor_t** descriptor )
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{
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mca_btl_mx_module_t* mx_btl = (mca_btl_mx_module_t*) btl;
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size_t max_data;
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if( OPAL_UNLIKELY(MCA_BTL_MX_CONNECTED != ((mca_btl_mx_endpoint_t*)endpoint)->status) ) {
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if( MCA_BTL_MX_NOT_REACHEABLE == ((mca_btl_mx_endpoint_t*)endpoint)->status )
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return OMPI_ERROR;
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if( MCA_BTL_MX_CONNECTION_PENDING == ((mca_btl_mx_endpoint_t*)endpoint)->status )
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return OMPI_ERR_OUT_OF_RESOURCE;
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if( OMPI_SUCCESS != mca_btl_mx_proc_connect( (mca_btl_mx_endpoint_t*)endpoint ) )
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return OMPI_ERROR;
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}
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if( !ompi_convertor_need_buffers(convertor) ) {
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uint32_t mx_segment_count = 0;
|
|
uint64_t tag64 = 0x01ULL | (((uint64_t)tag) << 8);
|
|
mx_return_t mx_return;
|
|
mx_request_t mx_request;
|
|
mx_segment_t mx_segments[2], *mx_segment = mx_segments;
|
|
|
|
if( 0 != header_size ) {
|
|
mx_segment->segment_ptr = header;
|
|
mx_segment->segment_length = header_size;
|
|
mx_segment++;
|
|
mx_segment_count++;
|
|
}
|
|
if( 0 != payload_size ) {
|
|
struct iovec iov;
|
|
uint32_t iov_count = 1;
|
|
|
|
iov.iov_base = NULL;
|
|
iov.iov_len = payload_size;
|
|
|
|
(void)ompi_convertor_pack( convertor, &iov, &iov_count, &max_data );
|
|
assert( max_data == payload_size );
|
|
|
|
mx_segment->segment_ptr = iov.iov_base;
|
|
mx_segment->segment_length = max_data;
|
|
mx_segment_count++;
|
|
}
|
|
|
|
mx_return = mx_isend( mx_btl->mx_endpoint, mx_segments, mx_segment_count,
|
|
endpoint->mx_peer_addr, tag64, NULL, &mx_request );
|
|
if( OPAL_UNLIKELY(MX_SUCCESS != mx_return) ) {
|
|
opal_output( 0, "mx_isend fails with error %s\n", mx_strerror(mx_return) );
|
|
return OMPI_ERROR;
|
|
}
|
|
#ifdef HAVE_MX_FORGET
|
|
{
|
|
uint32_t mx_result;
|
|
mx_return = mx_ibuffered( mx_btl->mx_endpoint, &mx_request, &mx_result );
|
|
if( OPAL_UNLIKELY(MX_SUCCESS != mx_return) ) {
|
|
opal_output( 0, "mx_ibuffered failed with error %d (%s)\n",
|
|
mx_return, mx_strerror(mx_return) );
|
|
return OMPI_SUCCESS;
|
|
}
|
|
if( mx_result ) {
|
|
mx_return = mx_forget( mx_btl->mx_endpoint, &mx_request );
|
|
if( OPAL_UNLIKELY(MX_SUCCESS != mx_return) ) {
|
|
opal_output( 0, "mx_forget failed with error %d (%s)\n",
|
|
mx_return, mx_strerror(mx_return) );
|
|
}
|
|
}
|
|
return OMPI_SUCCESS;
|
|
}
|
|
#endif
|
|
}
|
|
/* No optimization on this path. Just allocate a descriptor and return it
|
|
* to the user.
|
|
*/
|
|
*descriptor = mca_btl_mx_alloc( btl, endpoint, order,
|
|
header_size + payload_size, flags );
|
|
return OMPI_ERR_RESOURCE_BUSY;
|
|
}
|
|
|
|
/**
|
|
* Initiate an asynchronous send.
|
|
*
|
|
* @param btl (IN) BTL module
|
|
* @param endpoint (IN) BTL addressing information
|
|
* @param descriptor (IN) Description of the data to be transfered
|
|
* @param tag (IN) The tag value used to notify the peer.
|
|
*/
|
|
|
|
int mca_btl_mx_send( struct mca_btl_base_module_t* btl,
|
|
struct mca_btl_base_endpoint_t* endpoint,
|
|
struct mca_btl_base_descriptor_t* descriptor,
|
|
mca_btl_base_tag_t tag )
|
|
|
|
{
|
|
mca_btl_mx_module_t* mx_btl = (mca_btl_mx_module_t*)btl;
|
|
mca_btl_mx_frag_t* frag = (mca_btl_mx_frag_t*)descriptor;
|
|
mx_segment_t mx_segment[2];
|
|
mx_return_t mx_return;
|
|
uint64_t total_length = 0, tag64;
|
|
uint32_t i = 0;
|
|
int btl_ownership = (descriptor->des_flags & MCA_BTL_DES_FLAGS_BTL_OWNERSHIP);
|
|
|
|
if( OPAL_UNLIKELY(MCA_BTL_MX_CONNECTED != ((mca_btl_mx_endpoint_t*)endpoint)->status) ) {
|
|
if( MCA_BTL_MX_NOT_REACHEABLE == ((mca_btl_mx_endpoint_t*)endpoint)->status )
|
|
return OMPI_ERROR;
|
|
if( MCA_BTL_MX_CONNECTION_PENDING == ((mca_btl_mx_endpoint_t*)endpoint)->status )
|
|
return OMPI_ERR_OUT_OF_RESOURCE;
|
|
if( OMPI_SUCCESS != mca_btl_mx_proc_connect( (mca_btl_mx_endpoint_t*)endpoint ) )
|
|
return OMPI_ERROR;
|
|
}
|
|
|
|
frag->endpoint = endpoint;
|
|
frag->type = MCA_BTL_MX_SEND;
|
|
|
|
do {
|
|
mx_segment[i].segment_ptr = descriptor->des_src[i].seg_addr.pval;
|
|
mx_segment[i].segment_length = descriptor->des_src[i].seg_len;
|
|
total_length += descriptor->des_src[i].seg_len;
|
|
} while (++i < descriptor->des_src_cnt);
|
|
|
|
tag64 = 0x01ULL | (((uint64_t)tag) << 8);
|
|
mx_return = mx_isend( mx_btl->mx_endpoint, mx_segment, descriptor->des_src_cnt,
|
|
endpoint->mx_peer_addr,
|
|
tag64, frag, &frag->mx_request );
|
|
if( OPAL_UNLIKELY(MX_SUCCESS != mx_return) ) {
|
|
opal_output( 0, "mx_isend fails with error %s\n", mx_strerror(mx_return) );
|
|
return OMPI_ERROR;
|
|
}
|
|
|
|
#ifdef HAVE_MX_FORGET
|
|
{
|
|
uint32_t mx_result;
|
|
mx_return = mx_ibuffered( mx_btl->mx_endpoint, &(frag->mx_request), &mx_result );
|
|
if( OPAL_UNLIKELY(MX_SUCCESS != mx_return) ) {
|
|
opal_output( 0, "mx_ibuffered failed with error %d (%s)\n",
|
|
mx_return, mx_strerror(mx_return) );
|
|
frag->base.des_flags |= MCA_BTL_DES_SEND_ALWAYS_CALLBACK;
|
|
return OMPI_ERROR;
|
|
}
|
|
if( mx_result ) {
|
|
mx_return = mx_forget( mx_btl->mx_endpoint, &(frag->mx_request) );
|
|
if( OPAL_UNLIKELY(MX_SUCCESS != mx_return) ) {
|
|
opal_output( 0, "mx_forget failed with error %d (%s)\n",
|
|
mx_return, mx_strerror(mx_return) );
|
|
frag->base.des_flags |= MCA_BTL_DES_SEND_ALWAYS_CALLBACK;
|
|
return OMPI_SUCCESS;
|
|
}
|
|
|
|
if( MCA_BTL_DES_SEND_ALWAYS_CALLBACK & frag->base.des_flags ) {
|
|
frag->base.des_cbfunc( &(mx_btl->super), frag->endpoint,
|
|
&(frag->base), OMPI_SUCCESS);
|
|
}
|
|
if( btl_ownership ) {
|
|
MCA_BTL_MX_FRAG_RETURN( mx_btl, frag );
|
|
}
|
|
return 1;
|
|
}
|
|
}
|
|
#endif
|
|
if( 2048 > total_length ) {
|
|
mx_status_t mx_status;
|
|
uint32_t mx_result;
|
|
|
|
/* let's check for completness */
|
|
mx_return = mx_test( mx_btl->mx_endpoint, &(frag->mx_request),
|
|
&mx_status, &mx_result );
|
|
if( OPAL_LIKELY(MX_SUCCESS == mx_return) ) {
|
|
if( mx_result ) {
|
|
if( MCA_BTL_DES_SEND_ALWAYS_CALLBACK & frag->base.des_flags ) {
|
|
frag->base.des_cbfunc( &(mx_btl->super), frag->endpoint,
|
|
&(frag->base), OMPI_SUCCESS);
|
|
}
|
|
if( btl_ownership ) {
|
|
MCA_BTL_MX_FRAG_RETURN( mx_btl, frag );
|
|
}
|
|
return 1;
|
|
}
|
|
}
|
|
}
|
|
frag->base.des_flags |= MCA_BTL_DES_SEND_ALWAYS_CALLBACK;
|
|
|
|
return OMPI_SUCCESS;
|
|
}
|
|
|
|
|
|
/*
|
|
* Cleanup/release module resources.
|
|
*/
|
|
|
|
int mca_btl_mx_finalize( struct mca_btl_base_module_t* btl )
|
|
{
|
|
mca_btl_mx_module_t* mx_btl = (mca_btl_mx_module_t*) btl;
|
|
|
|
if( NULL != mx_btl->mx_endpoint )
|
|
mx_close_endpoint(mx_btl->mx_endpoint);
|
|
|
|
OBJ_DESTRUCT( &mx_btl->mx_lock );
|
|
OBJ_DESTRUCT( &mx_btl->mx_peers );
|
|
free(mx_btl);
|
|
return OMPI_SUCCESS;
|
|
}
|
|
|
|
|
|
#if OPAL_ENABLE_FT == 0
|
|
int mca_btl_mx_ft_event(int state) {
|
|
return OMPI_SUCCESS;
|
|
}
|
|
#else
|
|
int mca_btl_mx_ft_event(int state) {
|
|
mca_btl_mx_module_t* mx_btl;
|
|
int i;
|
|
|
|
if(OPAL_CRS_CHECKPOINT == state) {
|
|
/* Continue must reconstruct the routes (including modex), since we
|
|
* have to tear down the devices completely.
|
|
* We have to do this because the MX driver can be checkpointed, but
|
|
* cannot be restarted with BLCR due to an mmap problem. If we do not
|
|
* close MX then BLCR throws the following error in /var/log/messages:
|
|
* kernel: do_mmap(<file>, 00002aaab0aac000, 0000000000400000, ...) failed: ffffffffffffffff
|
|
* kernel: vmadump: mmap failed: /dev/mx0
|
|
* kernel: blcr: thaw_threads returned error, aborting. -1
|
|
* JJH: It may be possible to, instead of restarting the entire driver, just reconnect endpoints
|
|
*/
|
|
ompi_cr_continue_like_restart = true;
|
|
|
|
for( i = 0; i < mca_btl_mx_component.mx_num_btls; i++ ) {
|
|
mx_btl = mca_btl_mx_component.mx_btls[i];
|
|
|
|
if( NULL != mx_btl->mx_endpoint ) {
|
|
mx_close_endpoint(mx_btl->mx_endpoint);
|
|
mx_btl->mx_endpoint = NULL;
|
|
}
|
|
}
|
|
}
|
|
else if(OPAL_CRS_CONTINUE == state) {
|
|
;
|
|
}
|
|
else if(OPAL_CRS_RESTART == state) {
|
|
;
|
|
}
|
|
else if(OPAL_CRS_TERM == state ) {
|
|
;
|
|
}
|
|
else {
|
|
;
|
|
}
|
|
|
|
return OMPI_SUCCESS;
|
|
}
|
|
#endif /* OPAL_ENABLE_FT */
|
|
|
|
mca_btl_mx_module_t mca_btl_mx_module = {
|
|
{
|
|
&mca_btl_mx_component.super,
|
|
0, /* max size of first fragment */
|
|
0, /* min send fragment size */
|
|
0, /* max send fragment size */
|
|
0, /* btl_rdma_pipeline_send_length */
|
|
0, /* btl_rdma_pipeline_frag_size */
|
|
0, /* btl_min_rdma_pipeline_size */
|
|
0, /* exclusivity */
|
|
0, /* latency */
|
|
0, /* bandwidth */
|
|
MCA_BTL_FLAGS_SEND_INPLACE | MCA_BTL_FLAGS_PUT, /* flags */
|
|
mca_btl_mx_add_procs,
|
|
mca_btl_mx_del_procs,
|
|
mca_btl_mx_register,
|
|
mca_btl_mx_finalize,
|
|
mca_btl_mx_alloc,
|
|
mca_btl_mx_free,
|
|
mca_btl_mx_prepare_src,
|
|
mca_btl_mx_prepare_dst,
|
|
mca_btl_mx_send,
|
|
mca_btl_mx_sendi, /* send immediate */
|
|
mca_btl_mx_put, /* put */
|
|
NULL, /* get */
|
|
mca_btl_base_dump,
|
|
NULL, /* mpool */
|
|
NULL, /* register error */
|
|
mca_btl_mx_ft_event
|
|
}
|
|
};
|