17f51a0389
Add two new configure options that specify: 1. when to add padding to the openib control header - this *only* happens when the configure option is specified 2. when to use the dr-like checksum as opposed to the memcpy checksum. Not selectable at runtime - to eliminate performance impacts, this is a configure-only option Also removed an unused checksum version from opal/util/crc.h. The new component still needs a little cleanup and some sync with recent ob1 bug fixes. It was created as a separate module to avoid performance hits in ob1 itself, though most of the code is duplicative. The component is only selectable by either specifying it directly, or configuring with the dr-like checksum -and- setting -mca pml_csum_enable_checksum 1. Modify the LANL platform files to take advantage of the new module. This commit was SVN r20846.
177 строки
8.0 KiB
C
177 строки
8.0 KiB
C
/*
|
|
* Copyright (c) 2004-2005 The Trustees of Indiana University and Indiana
|
|
* University Research and Technology
|
|
* Corporation. All rights reserved.
|
|
* Copyright (c) 2004-2006 The University of Tennessee and The University
|
|
* of Tennessee Research Foundation. All rights
|
|
* reserved.
|
|
* Copyright (c) 2004-2005 High Performance Computing Center Stuttgart,
|
|
* University of Stuttgart. All rights reserved.
|
|
* Copyright (c) 2004-2005 The Regents of the University of California.
|
|
* All rights reserved.
|
|
* Copyright (c) 2008 UT-Battelle, LLC. All rights reserved.
|
|
* Copyright (c) 2009 IBM Corporation. All rights reserved.
|
|
* Copyright (c) 2009 Los Alamos National Security, LLC. All rights
|
|
* reserved.
|
|
* $COPYRIGHT$
|
|
*
|
|
* Additional copyrights may follow
|
|
*
|
|
* $HEADER$
|
|
*/
|
|
/**
|
|
* @file
|
|
*/
|
|
|
|
#ifndef MCA_PML_CSUM_RECVFRAG_H
|
|
#define MCA_PML_CSUM_RECVFRAG_H
|
|
|
|
#include "ompi/mca/btl/btl.h"
|
|
#include "ompi/mca/bml/bml.h"
|
|
#include "pml_csum_hdr.h"
|
|
|
|
BEGIN_C_DECLS
|
|
|
|
struct mca_pml_csum_buffer_t {
|
|
size_t len;
|
|
void * addr;
|
|
};
|
|
typedef struct mca_pml_csum_buffer_t mca_pml_csum_buffer_t;
|
|
|
|
|
|
struct mca_pml_csum_recv_frag_t {
|
|
ompi_free_list_item_t super;
|
|
mca_pml_csum_hdr_t hdr;
|
|
size_t num_segments;
|
|
mca_btl_base_module_t* btl;
|
|
mca_btl_base_segment_t segments[MCA_BTL_DES_MAX_SEGMENTS];
|
|
mca_pml_csum_buffer_t buffers[MCA_BTL_DES_MAX_SEGMENTS];
|
|
unsigned char addr[1];
|
|
};
|
|
typedef struct mca_pml_csum_recv_frag_t mca_pml_csum_recv_frag_t;
|
|
|
|
OBJ_CLASS_DECLARATION(mca_pml_csum_recv_frag_t);
|
|
|
|
|
|
#define MCA_PML_CSUM_RECV_FRAG_ALLOC(frag,rc) \
|
|
do { \
|
|
ompi_free_list_item_t* item; \
|
|
OMPI_FREE_LIST_WAIT(&mca_pml_csum.recv_frags, item, rc); \
|
|
frag = (mca_pml_csum_recv_frag_t*)item; \
|
|
} while(0)
|
|
|
|
|
|
#define MCA_PML_CSUM_RECV_FRAG_INIT(frag, hdr, segs, cnt, btl ) \
|
|
do { \
|
|
size_t i, _size; \
|
|
mca_btl_base_segment_t* macro_segments = frag->segments; \
|
|
mca_pml_csum_buffer_t* buffers = frag->buffers; \
|
|
unsigned char* _ptr = (unsigned char*)frag->addr; \
|
|
/* init recv_frag */ \
|
|
frag->btl = btl; \
|
|
frag->hdr = *(mca_pml_csum_hdr_t*)hdr; \
|
|
frag->num_segments = 1; \
|
|
_size = segs[0].seg_len; \
|
|
for( i = 1; i < cnt; i++ ) { \
|
|
_size += segs[i].seg_len; \
|
|
} \
|
|
/* copy over data */ \
|
|
if(_size <= mca_pml_csum.unexpected_limit ) { \
|
|
macro_segments[0].seg_addr.pval = frag->addr; \
|
|
} else { \
|
|
buffers[0].len = _size; \
|
|
buffers[0].addr = (char*) \
|
|
mca_pml_csum.allocator->alc_alloc( mca_pml_csum.allocator, \
|
|
buffers[0].len, \
|
|
0, NULL); \
|
|
_ptr = (unsigned char*)(buffers[0].addr); \
|
|
macro_segments[0].seg_addr.pval = buffers[0].addr; \
|
|
} \
|
|
macro_segments[0].seg_len = _size; \
|
|
for( i = 0; i < cnt; i++ ) { \
|
|
memcpy( _ptr, segs[i].seg_addr.pval, segs[i].seg_len); \
|
|
_ptr += segs[i].seg_len; \
|
|
} \
|
|
} while(0)
|
|
|
|
|
|
#define MCA_PML_CSUM_RECV_FRAG_RETURN(frag) \
|
|
do { \
|
|
if( frag->segments[0].seg_len > mca_pml_csum.unexpected_limit ) { \
|
|
/* return buffers */ \
|
|
mca_pml_csum.allocator->alc_free( mca_pml_csum.allocator, \
|
|
frag->buffers[0].addr ); \
|
|
} \
|
|
frag->num_segments = 0; \
|
|
\
|
|
/* return recv_frag */ \
|
|
OMPI_FREE_LIST_RETURN(&mca_pml_csum.recv_frags, \
|
|
(ompi_free_list_item_t*)frag); \
|
|
} while(0)
|
|
|
|
|
|
/**
|
|
* Callback from BTL on receipt of a recv_frag (match).
|
|
*/
|
|
|
|
extern void mca_pml_csum_recv_frag_callback_match( mca_btl_base_module_t *btl,
|
|
mca_btl_base_tag_t tag,
|
|
mca_btl_base_descriptor_t* descriptor,
|
|
void* cbdata );
|
|
|
|
/**
|
|
* Callback from BTL on receipt of a recv_frag (rndv).
|
|
*/
|
|
|
|
extern void mca_pml_csum_recv_frag_callback_rndv( mca_btl_base_module_t *btl,
|
|
mca_btl_base_tag_t tag,
|
|
mca_btl_base_descriptor_t* descriptor,
|
|
void* cbdata );
|
|
/**
|
|
* Callback from BTL on receipt of a recv_frag (rget).
|
|
*/
|
|
|
|
extern void mca_pml_csum_recv_frag_callback_rget( mca_btl_base_module_t *btl,
|
|
mca_btl_base_tag_t tag,
|
|
mca_btl_base_descriptor_t* descriptor,
|
|
void* cbdata );
|
|
|
|
/**
|
|
* Callback from BTL on receipt of a recv_frag (ack).
|
|
*/
|
|
|
|
extern void mca_pml_csum_recv_frag_callback_ack( mca_btl_base_module_t *btl,
|
|
mca_btl_base_tag_t tag,
|
|
mca_btl_base_descriptor_t* descriptor,
|
|
void* cbdata );
|
|
/**
|
|
* Callback from BTL on receipt of a recv_frag (frag).
|
|
*/
|
|
|
|
extern void mca_pml_csum_recv_frag_callback_frag( mca_btl_base_module_t *btl,
|
|
mca_btl_base_tag_t tag,
|
|
mca_btl_base_descriptor_t* descriptor,
|
|
void* cbdata );
|
|
/**
|
|
* Callback from BTL on receipt of a recv_frag (put).
|
|
*/
|
|
|
|
extern void mca_pml_csum_recv_frag_callback_put( mca_btl_base_module_t *btl,
|
|
mca_btl_base_tag_t tag,
|
|
mca_btl_base_descriptor_t* descriptor,
|
|
void* cbdata );
|
|
/**
|
|
* Callback from BTL on receipt of a recv_frag (fin).
|
|
*/
|
|
|
|
extern void mca_pml_csum_recv_frag_callback_fin( mca_btl_base_module_t *btl,
|
|
mca_btl_base_tag_t tag,
|
|
mca_btl_base_descriptor_t* descriptor,
|
|
void* cbdata );
|
|
|
|
|
|
END_C_DECLS
|
|
|
|
#endif
|
|
|