422 строки
12 KiB
C
422 строки
12 KiB
C
/* -*- Mode: C; c-basic-offset:4 ; indent-tabs-mode:nil -*- */
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/*
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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) 2004-2013 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 (c) 2014 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 "opal_config.h"
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#include <string.h>
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#include "opal/class/opal_bitmap.h"
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#include "opal/mca/btl/btl.h"
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#include "opal/datatype/opal_convertor.h"
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#include "opal/mca/mpool/base/base.h"
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#include "opal/mca/mpool/mpool.h"
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#include "btl_template.h"
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#include "btl_template_frag.h"
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#include "btl_template_proc.h"
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#include "btl_template_endpoint.h"
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mca_btl_template_module_t mca_btl_template_module = {
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.super = {
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.btl_component = &mca_btl_template_component.super,
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.btl_add_procs = mca_btl_template_add_procs,
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.btl_del_procs = mca_btl_template_del_procs,
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.btl_register = mca_btl_template_register,
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.btl_finalize = mca_btl_template_finalize,
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.btl_alloc = mca_btl_template_alloc,
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.btl_free = mca_btl_template_free,
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.btl_prepare_src = mca_btl_template_prepare_src,
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.btl_prepare_dst = mca_btl_template_prepare_dst,
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.btl_send = mca_btl_template_send,
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.btl_put = mca_btl_template_put,
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.btl_ft_event = mca_btl_template_ft_event
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}
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};
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/**
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*
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*/
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int mca_btl_template_add_procs(
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struct mca_btl_base_module_t* btl,
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size_t nprocs,
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struct opal_proc_t **opal_procs,
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struct mca_btl_base_endpoint_t** peers,
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opal_bitmap_t* reachable)
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{
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mca_btl_template_module_t* template_btl = (mca_btl_template_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 opal_proc_t* opal_proc = opal_procs[i];
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mca_btl_template_proc_t* template_proc;
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mca_btl_base_endpoint_t* template_endpoint;
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#if 0
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/* If the BTL doesn't support heterogeneous operations, be
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sure to say we can't reach that proc */
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if (opal_proc_local()->proc_arch != opal_proc->proc_arch) {
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continue;
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}
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#endif
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if(NULL == (template_proc = mca_btl_template_proc_create(opal_proc))) {
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return OPAL_ERR_OUT_OF_RESOURCE;
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}
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/*
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* Check to make sure that the peer has at least as many interface
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* addresses exported as we are trying to use. If not, then
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* don't bind this BTL instance to the proc.
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*/
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OPAL_THREAD_LOCK(&template_proc->proc_lock);
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/* The btl_proc datastructure is shared by all TEMPLATE 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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template_endpoint = OBJ_NEW(mca_btl_template_endpoint_t);
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if(NULL == template_endpoint) {
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OPAL_THREAD_UNLOCK(&template_proc->proc_lock);
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return OPAL_ERR_OUT_OF_RESOURCE;
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}
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template_endpoint->endpoint_btl = template_btl;
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rc = mca_btl_template_proc_insert(template_proc, template_endpoint);
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if(rc != OPAL_SUCCESS) {
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OBJ_RELEASE(template_endpoint);
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OPAL_THREAD_UNLOCK(&template_proc->proc_lock);
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continue;
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}
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opal_bitmap_set_bit(reachable, i);
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OPAL_THREAD_UNLOCK(&template_proc->proc_lock);
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peers[i] = template_endpoint;
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}
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return OPAL_SUCCESS;
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}
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int mca_btl_template_del_procs(struct mca_btl_base_module_t* btl,
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size_t nprocs,
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struct opal_proc_t **procs,
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struct mca_btl_base_endpoint_t ** peers)
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{
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/* TODO */
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return OPAL_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_template_register(
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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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return OPAL_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_template_alloc(
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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_template_module_t* template_btl = (mca_btl_template_module_t*) btl;
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mca_btl_template_frag_t* frag = NULL;
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if(size <= btl->btl_eager_limit){
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MCA_BTL_TEMPLATE_FRAG_ALLOC_EAGER(template_btl, frag);
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} else {
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MCA_BTL_TEMPLATE_FRAG_ALLOC_MAX(template_btl, frag);
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}
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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.seg_len = size;
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frag->base.des_flags = 0;
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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_template_free(
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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_template_frag_t* frag = (mca_btl_template_frag_t*)des;
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if(frag->size == 0) {
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#if MCA_BTL_HAS_MPOOL
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OBJ_RELEASE(frag->registration);
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#endif
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MCA_BTL_TEMPLATE_FRAG_RETURN_USER(btl, frag);
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} else if(frag->size == btl->btl_eager_limit){
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MCA_BTL_TEMPLATE_FRAG_RETURN_EAGER(btl, frag);
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} else if(frag->size == btl->btl_max_send_size) {
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MCA_BTL_TEMPLATE_FRAG_RETURN_EAGER(btl, frag);
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} else {
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return OPAL_ERR_BAD_PARAM;
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}
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return OPAL_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* mca_btl_template_prepare_src(
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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 opal_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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{
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mca_btl_template_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 = *size;
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int rc;
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/*
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* if we aren't pinning the data and the requested size is less
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* than the eager limit pack into a fragment from the eager pool
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*/
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if (max_data+reserve <= btl->btl_eager_limit) {
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MCA_BTL_TEMPLATE_FRAG_ALLOC_EAGER(btl, frag);
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if(OPAL_UNLIKELY(NULL == frag)) {
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return NULL;
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}
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iov.iov_len = max_data;
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iov.iov_base = (unsigned char*) frag->segment.seg_addr.pval + reserve;
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rc = opal_convertor_pack(convertor, &iov, &iov_count, &max_data );
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*size = max_data;
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if( rc < 0 ) {
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MCA_BTL_TEMPLATE_FRAG_RETURN_EAGER(btl, frag);
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return NULL;
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}
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frag->segment.seg_len = max_data + reserve;
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}
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/*
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* otherwise pack as much data as we can into a fragment
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* that is the max send size.
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*/
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else {
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MCA_BTL_TEMPLATE_FRAG_ALLOC_MAX(btl, frag);
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if(OPAL_UNLIKELY(NULL == frag)) {
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return NULL;
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}
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if(max_data + reserve > frag->size){
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max_data = frag->size - reserve;
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}
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iov.iov_len = max_data;
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iov.iov_base = (unsigned char*) frag->segment.seg_addr.pval + reserve;
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rc = opal_convertor_pack(convertor, &iov, &iov_count, &max_data );
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*size = max_data;
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if( rc < 0 ) {
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MCA_BTL_TEMPLATE_FRAG_RETURN_MAX(btl, frag);
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return NULL;
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}
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frag->segment.seg_len = max_data + reserve;
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}
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frag->base.des_local = &frag->segment;
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frag->base.des_local_count = 1;
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frag->base.des_flags = 0;
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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_template_prepare_dst(
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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 opal_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_template_frag_t* frag;
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MCA_BTL_TEMPLATE_FRAG_ALLOC_USER(btl, frag);
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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.seg_len = *size;
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opal_convertor_get_current_pointer( convertor, (void**)&(frag->segment.seg_addr.pval) );
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frag->base.des_local = &frag->segment;
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frag->base.des_local_count = 1;
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frag->base.des_flags = 0;
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return &frag->base;
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}
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/**
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* Initiate an asynchronous send.
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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 transfered
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* @param tag (IN) The tag value used to notify the peer.
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*/
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int mca_btl_template_send(
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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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mca_btl_base_tag_t tag)
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{
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/* mca_btl_template_module_t* template_btl = (mca_btl_template_module_t*) btl; */
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mca_btl_template_frag_t* frag = (mca_btl_template_frag_t*)descriptor;
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frag->endpoint = endpoint;
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/* TODO */
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return OPAL_ERR_NOT_IMPLEMENTED;
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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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int mca_btl_template_put(
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mca_btl_base_module_t* btl,
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mca_btl_base_endpoint_t* endpoint,
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mca_btl_base_descriptor_t* descriptor)
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{
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/* mca_btl_template_module_t* template_btl = (mca_btl_template_module_t*) btl; */
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mca_btl_template_frag_t* frag = (mca_btl_template_frag_t*) descriptor;
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frag->endpoint = endpoint;
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/* TODO */
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return OPAL_ERR_NOT_IMPLEMENTED;
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}
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/**
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* Initiate an asynchronous get.
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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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*/
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int mca_btl_template_get(
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mca_btl_base_module_t* btl,
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mca_btl_base_endpoint_t* endpoint,
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mca_btl_base_descriptor_t* descriptor)
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{
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/* mca_btl_template_module_t* template_btl = (mca_btl_template_module_t*) btl; */
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mca_btl_template_frag_t* frag = (mca_btl_template_frag_t*) descriptor;
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frag->endpoint = endpoint;
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/* TODO */
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return OPAL_ERR_NOT_IMPLEMENTED;
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}
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/*
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* Cleanup/release module resources.
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*/
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int mca_btl_template_finalize(struct mca_btl_base_module_t* btl)
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{
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mca_btl_template_module_t* template_btl = (mca_btl_template_module_t*) btl;
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OBJ_DESTRUCT(&template_btl->template_lock);
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OBJ_DESTRUCT(&template_btl->template_frag_eager);
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OBJ_DESTRUCT(&template_btl->template_frag_max);
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OBJ_DESTRUCT(&template_btl->template_frag_user);
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free(template_btl);
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return OPAL_SUCCESS;
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}
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int mca_btl_template_ft_event(int state) {
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if(OPAL_CRS_CHECKPOINT == state) {
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;
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}
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else if(OPAL_CRS_CONTINUE == state) {
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;
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}
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else if(OPAL_CRS_RESTART == state) {
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;
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}
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else if(OPAL_CRS_TERM == state ) {
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;
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}
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else {
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;
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}
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return OPAL_SUCCESS;
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}
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