4da4c44210
than using a single receive callback followed by a switch on the header. Also fast pathed the matching for small fragments. This commit was SVN r18549.
177 строки
7.8 KiB
C
177 строки
7.8 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) 2004-2005 The Regents of the University of California.
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* All rights reserved.
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* Copyright (c) 2008 UT-Battelle, LLC. 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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/**
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* @file
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*/
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#ifndef MCA_PML_OB1_RECVFRAG_H
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#define MCA_PML_OB1_RECVFRAG_H
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#include "ompi/mca/btl/btl.h"
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#include "ompi/mca/bml/bml.h"
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#include "pml_ob1_hdr.h"
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#if defined(c_plusplus) || defined(__cplusplus)
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extern "C" {
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#endif
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struct mca_pml_ob1_buffer_t {
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size_t len;
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void * addr;
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};
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typedef struct mca_pml_ob1_buffer_t mca_pml_ob1_buffer_t;
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struct mca_pml_ob1_recv_frag_t {
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ompi_free_list_item_t super;
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mca_pml_ob1_hdr_t hdr;
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size_t num_segments;
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mca_btl_base_module_t* btl;
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mca_btl_base_segment_t segments[MCA_BTL_DES_MAX_SEGMENTS];
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mca_pml_ob1_buffer_t buffers[MCA_BTL_DES_MAX_SEGMENTS];
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unsigned char addr[1];
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};
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typedef struct mca_pml_ob1_recv_frag_t mca_pml_ob1_recv_frag_t;
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OBJ_CLASS_DECLARATION(mca_pml_ob1_recv_frag_t);
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#define MCA_PML_OB1_RECV_FRAG_ALLOC(frag,rc) \
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do { \
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ompi_free_list_item_t* item; \
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OMPI_FREE_LIST_WAIT(&mca_pml_ob1.recv_frags, item, rc); \
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frag = (mca_pml_ob1_recv_frag_t*)item; \
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} while(0)
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#define MCA_PML_OB1_RECV_FRAG_INIT(frag, hdr, segs, cnt, btl ) \
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do { \
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size_t i, _size; \
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mca_btl_base_segment_t* macro_segments = frag->segments; \
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mca_pml_ob1_buffer_t* buffers = frag->buffers; \
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unsigned char* _ptr = (unsigned char*)frag->addr; \
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/* init recv_frag */ \
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frag->btl = btl; \
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frag->hdr = *(mca_pml_ob1_hdr_t*)hdr; \
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frag->num_segments = 1; \
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_size = segs[0].seg_len; \
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for( i = 1; i < cnt; i++ ) { \
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_size += segs[i].seg_len; \
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} \
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/* copy over data */ \
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if(_size <= mca_pml_ob1.unexpected_limit ) { \
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macro_segments[0].seg_addr.pval = frag->addr; \
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} else { \
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buffers[0].len = _size; \
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buffers[0].addr = (char*) \
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mca_pml_ob1.allocator->alc_alloc( mca_pml_ob1.allocator, \
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buffers[0].len, \
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0, NULL); \
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_ptr = (unsigned char*)(buffers[0].addr); \
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macro_segments[0].seg_addr.pval = buffers[0].addr; \
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} \
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macro_segments[0].seg_len = _size; \
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for( i = 0; i < cnt; i++ ) { \
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memcpy( _ptr, segs[i].seg_addr.pval, segs[i].seg_len); \
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_ptr += segs[i].seg_len; \
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} \
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} while(0)
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#define MCA_PML_OB1_RECV_FRAG_RETURN(frag) \
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do { \
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if( frag->segments[0].seg_len > mca_pml_ob1.unexpected_limit ) { \
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/* return buffers */ \
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mca_pml_ob1.allocator->alc_free( mca_pml_ob1.allocator, \
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frag->buffers[0].addr ); \
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} \
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frag->num_segments = 0; \
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\
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/* return recv_frag */ \
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OMPI_FREE_LIST_RETURN(&mca_pml_ob1.recv_frags, \
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(ompi_free_list_item_t*)frag); \
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} while(0)
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/**
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* Callback from BTL on receipt of a recv_frag (match).
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*/
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extern void mca_pml_ob1_recv_frag_callback_match( mca_btl_base_module_t *btl,
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mca_btl_base_tag_t tag,
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mca_btl_base_descriptor_t* descriptor,
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void* cbdata );
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/**
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* Callback from BTL on receipt of a recv_frag (rndv).
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*/
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extern void mca_pml_ob1_recv_frag_callback_rndv( mca_btl_base_module_t *btl,
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mca_btl_base_tag_t tag,
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mca_btl_base_descriptor_t* descriptor,
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void* cbdata );
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/**
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* Callback from BTL on receipt of a recv_frag (rget).
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*/
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extern void mca_pml_ob1_recv_frag_callback_rget( mca_btl_base_module_t *btl,
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mca_btl_base_tag_t tag,
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mca_btl_base_descriptor_t* descriptor,
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void* cbdata );
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/**
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* Callback from BTL on receipt of a recv_frag (ack).
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*/
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extern void mca_pml_ob1_recv_frag_callback_ack( mca_btl_base_module_t *btl,
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mca_btl_base_tag_t tag,
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mca_btl_base_descriptor_t* descriptor,
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void* cbdata );
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/**
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* Callback from BTL on receipt of a recv_frag (frag).
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*/
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extern void mca_pml_ob1_recv_frag_callback_frag( mca_btl_base_module_t *btl,
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mca_btl_base_tag_t tag,
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mca_btl_base_descriptor_t* descriptor,
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void* cbdata );
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/**
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* Callback from BTL on receipt of a recv_frag (put).
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*/
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extern void mca_pml_ob1_recv_frag_callback_put( mca_btl_base_module_t *btl,
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mca_btl_base_tag_t tag,
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mca_btl_base_descriptor_t* descriptor,
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void* cbdata );
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/**
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* Callback from BTL on receipt of a recv_frag (fin).
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*/
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extern void mca_pml_ob1_recv_frag_callback_fin( mca_btl_base_module_t *btl,
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mca_btl_base_tag_t tag,
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mca_btl_base_descriptor_t* descriptor,
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void* cbdata );
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#if defined(c_plusplus) || defined(__cplusplus)
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}
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#endif
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#endif
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