344 строки
20 KiB
C
344 строки
20 KiB
C
/*
|
|
* Copyright (c) 2004-2005 The Trustees of Indiana University.
|
|
* All rights reserved.
|
|
* Copyright (c) 2004-2005 The Trustees of the University of Tennessee.
|
|
* 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.
|
|
* $COPYRIGHT$
|
|
*
|
|
* Additional copyrights may follow
|
|
*
|
|
* $HEADER$
|
|
*/
|
|
/**
|
|
* @file
|
|
*/
|
|
#ifndef OMPI_PML_OB1_SEND_REQUEST_H
|
|
#define OMPI_PML_OB1_SEND_REQUEST_H
|
|
|
|
#include "mca/btl/btl.h"
|
|
#include "mca/pml/base/pml_base_sendreq.h"
|
|
#include "mca/mpool/base/base.h"
|
|
#include "pml_ob1_proc.h"
|
|
#include "pml_ob1_comm.h"
|
|
#include "pml_ob1_hdr.h"
|
|
#include "datatype/convertor.h"
|
|
#include "mca/bml/bml.h"
|
|
|
|
#if defined(c_plusplus) || defined(__cplusplus)
|
|
extern "C" {
|
|
#endif
|
|
|
|
|
|
struct mca_pml_ob1_send_request_t {
|
|
mca_pml_base_send_request_t req_send;
|
|
ompi_proc_t* req_proc;
|
|
mca_bml_base_endpoint_t* bml_endpoint;
|
|
volatile int32_t req_state;
|
|
struct mca_mpool_base_chunk_t* req_chunk;
|
|
ompi_ptr_t req_recv;
|
|
int32_t req_lock;
|
|
size_t req_pipeline_depth;
|
|
size_t req_bytes_delivered;
|
|
size_t req_send_offset;
|
|
size_t req_rdma_offset;
|
|
};
|
|
typedef struct mca_pml_ob1_send_request_t mca_pml_ob1_send_request_t;
|
|
|
|
|
|
OBJ_CLASS_DECLARATION(mca_pml_ob1_send_request_t);
|
|
|
|
|
|
#define MCA_PML_OB1_SEND_REQUEST_ALLOC( \
|
|
comm, \
|
|
dst, \
|
|
sendreq, \
|
|
rc) \
|
|
{ \
|
|
ompi_proc_t *proc = \
|
|
comm->c_pml_procs[dst]->proc_ompi; \
|
|
opal_list_item_t* item; \
|
|
\
|
|
if(NULL == proc) { \
|
|
rc = OMPI_ERR_OUT_OF_RESOURCE; \
|
|
} else { \
|
|
rc = OMPI_SUCCESS; \
|
|
OMPI_FREE_LIST_WAIT(&mca_pml_ob1.send_requests, item, rc); \
|
|
sendreq = (mca_pml_ob1_send_request_t*)item; \
|
|
sendreq->req_proc = proc; \
|
|
} \
|
|
}
|
|
|
|
|
|
#define MCA_PML_OB1_SEND_REQUEST_INIT( \
|
|
sendreq, \
|
|
buf, \
|
|
count, \
|
|
datatype, \
|
|
dst, \
|
|
tag, \
|
|
comm, \
|
|
sendmode, \
|
|
persistent) \
|
|
{ \
|
|
MCA_PML_BASE_SEND_REQUEST_INIT(&sendreq->req_send, \
|
|
buf, \
|
|
count, \
|
|
datatype, \
|
|
dst, \
|
|
tag, \
|
|
comm, \
|
|
sendmode, \
|
|
persistent); \
|
|
}
|
|
|
|
|
|
/**
|
|
* Diagnostic output to trace rdma protocol timing
|
|
*/
|
|
|
|
|
|
/**
|
|
* Start a send request.
|
|
*/
|
|
|
|
#define MCA_PML_OB1_SEND_REQUEST_START(sendreq, rc) \
|
|
do { \
|
|
mca_pml_ob1_comm_t* comm = sendreq->req_send.req_base.req_comm->c_pml_comm; \
|
|
mca_bml_base_endpoint_t* endpoint = (mca_bml_base_endpoint_t*)sendreq->req_proc->proc_pml; \
|
|
mca_bml_base_btl_t* bml_btl; \
|
|
\
|
|
if(endpoint == NULL) { \
|
|
rc = OMPI_ERR_UNREACH; \
|
|
break; \
|
|
} \
|
|
\
|
|
sendreq->req_lock = 0; \
|
|
sendreq->req_pipeline_depth = 0; \
|
|
sendreq->req_bytes_delivered = 0; \
|
|
sendreq->req_chunk = NULL; \
|
|
sendreq->req_state = 0; \
|
|
sendreq->req_send_offset = 0; \
|
|
sendreq->req_send.req_base.req_pml_complete = false; \
|
|
sendreq->req_send.req_base.req_ompi.req_complete = false; \
|
|
sendreq->req_send.req_base.req_ompi.req_state = OMPI_REQUEST_ACTIVE; \
|
|
sendreq->req_send.req_base.req_sequence = OPAL_THREAD_ADD32( \
|
|
&comm->procs[sendreq->req_send.req_base.req_peer].send_sequence,1); \
|
|
sendreq->bml_endpoint = endpoint; \
|
|
\
|
|
/* select a btl */ \
|
|
bml_btl = mca_bml_base_btl_array_get_next(&endpoint->btl_eager); \
|
|
\
|
|
/* shortcut for zero byte */ \
|
|
if(sendreq->req_send.req_bytes_packed == 0 && \
|
|
sendreq->req_send.req_send_mode != MCA_PML_BASE_SEND_SYNCHRONOUS) { \
|
|
mca_btl_base_descriptor_t* descriptor; \
|
|
mca_btl_base_segment_t* segment; \
|
|
mca_pml_ob1_hdr_t* hdr; \
|
|
\
|
|
/* allocate a descriptor */ \
|
|
MCA_PML_OB1_DES_ALLOC(bml_btl, descriptor, sizeof(mca_pml_ob1_match_hdr_t)); \
|
|
if(NULL == descriptor) { \
|
|
return OMPI_ERR_OUT_OF_RESOURCE; \
|
|
} \
|
|
segment = descriptor->des_src; \
|
|
\
|
|
/* build hdr */ \
|
|
hdr = (mca_pml_ob1_hdr_t*)segment->seg_addr.pval; \
|
|
hdr->hdr_common.hdr_flags = 0; \
|
|
hdr->hdr_common.hdr_type = MCA_PML_OB1_HDR_TYPE_MATCH; \
|
|
hdr->hdr_match.hdr_ctx = sendreq->req_send.req_base.req_comm->c_contextid; \
|
|
hdr->hdr_match.hdr_src = sendreq->req_send.req_base.req_comm->c_my_rank; \
|
|
hdr->hdr_match.hdr_dst = sendreq->req_send.req_base.req_peer; \
|
|
hdr->hdr_match.hdr_tag = sendreq->req_send.req_base.req_tag; \
|
|
hdr->hdr_match.hdr_seq = sendreq->req_send.req_base.req_sequence; \
|
|
\
|
|
/* short message */ \
|
|
descriptor->des_cbfunc = mca_pml_ob1_match_completion; \
|
|
descriptor->des_flags |= MCA_BTL_DES_FLAGS_PRIORITY; \
|
|
descriptor->des_cbdata = sendreq; \
|
|
\
|
|
/* request is complete at mpi level */ \
|
|
ompi_request_complete((ompi_request_t*)sendreq); \
|
|
\
|
|
/* send */ \
|
|
rc = mca_bml_base_send(bml_btl, descriptor, MCA_BTL_TAG_PML); \
|
|
if(OMPI_SUCCESS != rc) { \
|
|
mca_bml_base_free(bml_btl, descriptor ); \
|
|
} \
|
|
\
|
|
} else { \
|
|
/* handle buffered send */ \
|
|
if(sendreq->req_send.req_send_mode == MCA_PML_BASE_SEND_BUFFERED) { \
|
|
mca_pml_base_bsend_request_start(&sendreq->req_send.req_base.req_ompi); \
|
|
} \
|
|
\
|
|
/* start request */ \
|
|
if(bml_btl->btl_flags & MCA_BTL_FLAGS_SEND_INPLACE) { \
|
|
rc = mca_pml_ob1_send_request_start_prepare( sendreq, bml_btl ); \
|
|
} else { \
|
|
rc = mca_pml_ob1_send_request_start_copy( sendreq, bml_btl ); \
|
|
} \
|
|
} \
|
|
} while (0)
|
|
|
|
|
|
/*
|
|
* Complete a send request
|
|
*/
|
|
#define MCA_PML_OB1_SEND_REQUEST_COMPLETE(sendreq) \
|
|
{ \
|
|
(sendreq)->req_send.req_base.req_pml_complete = true; \
|
|
if ((sendreq)->req_send.req_base.req_ompi.req_complete == false) { \
|
|
(sendreq)->req_send.req_base.req_ompi.req_status.MPI_SOURCE = \
|
|
(sendreq)->req_send.req_base.req_comm->c_my_rank; \
|
|
(sendreq)->req_send.req_base.req_ompi.req_status.MPI_TAG = \
|
|
(sendreq)->req_send.req_base.req_tag; \
|
|
(sendreq)->req_send.req_base.req_ompi.req_status.MPI_ERROR = OMPI_SUCCESS; \
|
|
(sendreq)->req_send.req_base.req_ompi.req_status._count = \
|
|
(sendreq)->req_send.req_bytes_packed; \
|
|
(sendreq)->req_send.req_base.req_ompi.req_complete = true; \
|
|
if(ompi_request_waiting) { \
|
|
opal_condition_broadcast(&ompi_request_cond); \
|
|
} \
|
|
} else if((sendreq)->req_send.req_base.req_free_called) { \
|
|
MCA_PML_OB1_FREE((ompi_request_t**)&sendreq); \
|
|
} else if ((sendreq)->req_send.req_send_mode == MCA_PML_BASE_SEND_BUFFERED) { \
|
|
mca_pml_base_bsend_request_fini((ompi_request_t*)sendreq); \
|
|
} \
|
|
}
|
|
|
|
|
|
/*
|
|
* Advance a pending send request. Note that the initial descriptor must complete
|
|
* and the acknowledment received before the request can complete or be scheduled.
|
|
* However, these events may occur in either order.
|
|
*/
|
|
|
|
#define MCA_PML_OB1_SEND_REQUEST_ADVANCE(sendreq) \
|
|
do { \
|
|
bool schedule = false; \
|
|
\
|
|
/* has an acknowledgment been received */ \
|
|
if(OPAL_THREAD_ADD32(&sendreq->req_state, 1) == 2) { \
|
|
OPAL_THREAD_LOCK(&ompi_request_lock); \
|
|
if(sendreq->req_bytes_delivered == sendreq->req_send.req_bytes_packed) { \
|
|
MCA_PML_OB1_SEND_REQUEST_COMPLETE(sendreq); \
|
|
} else { \
|
|
schedule = true; \
|
|
} \
|
|
OPAL_THREAD_UNLOCK(&ompi_request_lock); \
|
|
} \
|
|
\
|
|
/* additional data to schedule */ \
|
|
if(schedule == true) { \
|
|
mca_pml_ob1_send_request_schedule(sendreq); \
|
|
} \
|
|
} while (0)
|
|
|
|
/*
|
|
* Release resources associated with a request
|
|
*/
|
|
|
|
#define MCA_PML_OB1_SEND_REQUEST_RETURN(sendreq) \
|
|
{ \
|
|
if(NULL != (sendreq)->req_chunk) { \
|
|
mca_mpool_base_reg_mpool_t* reg = (sendreq)->req_chunk->mpools; \
|
|
while(NULL != reg->mpool) { \
|
|
if(NULL != reg->mpool_registration) { \
|
|
OBJ_RELEASE(reg->mpool_registration); \
|
|
} \
|
|
reg++; \
|
|
} \
|
|
OBJ_RELEASE((sendreq)->req_chunk); \
|
|
} \
|
|
\
|
|
/* Let the base handle the reference counts */ \
|
|
MCA_PML_BASE_SEND_REQUEST_FINI((&(sendreq)->req_send)); \
|
|
OMPI_FREE_LIST_RETURN( \
|
|
&mca_pml_ob1.send_requests, (opal_list_item_t*)sendreq); \
|
|
}
|
|
|
|
|
|
/*
|
|
* Update bytes delivered on request based on supplied descriptor
|
|
*/
|
|
|
|
#define MCA_PML_OB1_SEND_REQUEST_SET_BYTES_DELIVERED(sendreq, descriptor, hdrlen) \
|
|
do { \
|
|
size_t i; \
|
|
mca_btl_base_segment_t* segments = descriptor->des_src; \
|
|
\
|
|
for(i=0; i<descriptor->des_src_cnt; i++) { \
|
|
sendreq->req_bytes_delivered += segments[i].seg_len; \
|
|
} \
|
|
sendreq->req_bytes_delivered -= hdrlen; \
|
|
\
|
|
} while(0)
|
|
|
|
/*
|
|
* Attempt to process any pending requests
|
|
*/
|
|
|
|
#define MCA_PML_OB1_SEND_REQUEST_PROCESS_PENDING() \
|
|
do { \
|
|
/* advance pending requests */ \
|
|
while(opal_list_get_size(&mca_pml_ob1.send_pending)) { \
|
|
mca_pml_ob1_send_request_t* sendreq; \
|
|
OPAL_THREAD_LOCK(&mca_pml_ob1.lock); \
|
|
sendreq = (mca_pml_ob1_send_request_t*) \
|
|
opal_list_remove_first(&mca_pml_ob1.send_pending); \
|
|
OPAL_THREAD_UNLOCK(&mca_pml_ob1.lock); \
|
|
if(NULL == sendreq) \
|
|
break; \
|
|
mca_pml_ob1_send_request_schedule(sendreq); \
|
|
} \
|
|
} while (0)
|
|
|
|
|
|
/**
|
|
* Start the specified request
|
|
*/
|
|
|
|
int mca_pml_ob1_send_request_start_copy(
|
|
mca_pml_ob1_send_request_t* sendreq,
|
|
mca_bml_base_btl_t* bml_btl);
|
|
|
|
int mca_pml_ob1_send_request_start_prepare(
|
|
mca_pml_ob1_send_request_t* sendreq,
|
|
mca_bml_base_btl_t* bml_btl);
|
|
|
|
/**
|
|
* Schedule additional fragments
|
|
*/
|
|
int mca_pml_ob1_send_request_schedule(
|
|
mca_pml_ob1_send_request_t* sendreq);
|
|
|
|
/**
|
|
* Completion callback on match header
|
|
*/
|
|
void mca_pml_ob1_match_completion(
|
|
struct mca_btl_base_module_t* btl,
|
|
struct mca_btl_base_endpoint_t* ep,
|
|
struct mca_btl_base_descriptor_t* descriptor,
|
|
int status);
|
|
|
|
/**
|
|
* Initiate a put scheduled by the receiver.
|
|
*/
|
|
|
|
void mca_pml_ob1_send_request_put(
|
|
mca_pml_ob1_send_request_t* sendreq,
|
|
mca_btl_base_module_t* btl,
|
|
mca_pml_ob1_rdma_hdr_t* hdr);
|
|
|
|
|
|
#if defined(c_plusplus) || defined(__cplusplus)
|
|
}
|
|
#endif
|
|
#endif
|
|
|