552c9ca5a0
WHAT: Open our low-level communication infrastructure by moving all necessary components (btl/rcache/allocator/mpool) down in OPAL All the components required for inter-process communications are currently deeply integrated in the OMPI layer. Several groups/institutions have express interest in having a more generic communication infrastructure, without all the OMPI layer dependencies. This communication layer should be made available at a different software level, available to all layers in the Open MPI software stack. As an example, our ORTE layer could replace the current OOB and instead use the BTL directly, gaining access to more reactive network interfaces than TCP. Similarly, external software libraries could take advantage of our highly optimized AM (active message) communication layer for their own purpose. UTK with support from Sandia, developped a version of Open MPI where the entire communication infrastucture has been moved down to OPAL (btl/rcache/allocator/mpool). Most of the moved components have been updated to match the new schema, with few exceptions (mainly BTLs where I have no way of compiling/testing them). Thus, the completion of this RFC is tied to being able to completing this move for all BTLs. For this we need help from the rest of the Open MPI community, especially those supporting some of the BTLs. A non-exhaustive list of BTLs that qualify here is: mx, portals4, scif, udapl, ugni, usnic. This commit was SVN r32317.
357 строки
21 KiB
C
357 строки
21 KiB
C
/*
|
|
* Copyright (c) 2004-2005 The Trustees of Indiana University and Indiana
|
|
* University Research and Technology
|
|
* Corporation. All rights reserved.
|
|
* Copyright (c) 2004-2013 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) 2004-2006 The Regents of the University of California.
|
|
* All rights reserved.
|
|
* $COPYRIGHT$
|
|
*
|
|
* Additional copyrights may follow
|
|
*
|
|
* $HEADER$
|
|
*/
|
|
|
|
#ifndef PML_CM_SENDREQ_H
|
|
#define PML_CM_SENDREQ_H
|
|
|
|
#include "pml_cm_request.h"
|
|
#include "ompi/mca/pml/base/pml_base_sendreq.h"
|
|
#include "ompi/mca/pml/base/pml_base_bsend.h"
|
|
#include "ompi/mca/pml/pml.h"
|
|
#include "ompi/mca/mtl/mtl.h"
|
|
#include "opal/prefetch.h"
|
|
|
|
struct mca_pml_cm_send_request_t {
|
|
mca_pml_cm_request_t req_base;
|
|
mca_pml_base_send_mode_t req_send_mode;
|
|
};
|
|
typedef struct mca_pml_cm_send_request_t mca_pml_cm_send_request_t;
|
|
OBJ_CLASS_DECLARATION(mca_pml_cm_send_request_t);
|
|
|
|
|
|
struct mca_pml_cm_thin_send_request_t {
|
|
mca_pml_cm_send_request_t req_send;
|
|
mca_mtl_request_t req_mtl; /**< the mtl specific memory. This field should be the last in the struct */
|
|
};
|
|
typedef struct mca_pml_cm_thin_send_request_t mca_pml_cm_thin_send_request_t;
|
|
OBJ_CLASS_DECLARATION(mca_pml_cm_thin_send_request_t);
|
|
|
|
|
|
struct mca_pml_cm_hvy_send_request_t {
|
|
mca_pml_cm_send_request_t req_send;
|
|
void *req_addr; /**< pointer to application buffer */
|
|
size_t req_count; /**< count of user datatype elements */
|
|
int32_t req_peer; /**< peer process - rank w/in this communicator */
|
|
int32_t req_tag; /**< user defined tag */
|
|
void *req_buff; /**< pointer to send buffer - may not be application buffer */
|
|
bool req_blocking;
|
|
mca_mtl_request_t req_mtl; /**< the mtl specific memory. This field should be the last in the struct */
|
|
};
|
|
typedef struct mca_pml_cm_hvy_send_request_t mca_pml_cm_hvy_send_request_t;
|
|
OBJ_CLASS_DECLARATION(mca_pml_cm_hvy_send_request_t);
|
|
|
|
|
|
#define MCA_PML_CM_THIN_SEND_REQUEST_ALLOC(sendreq, comm, dst, \
|
|
ompi_proc) \
|
|
do { \
|
|
ompi_free_list_item_t* item; \
|
|
ompi_proc = ompi_comm_peer_lookup( comm, dst ); \
|
|
\
|
|
if(OPAL_UNLIKELY(NULL == ompi_proc)) { \
|
|
sendreq = NULL; \
|
|
} else { \
|
|
OMPI_FREE_LIST_WAIT_MT(&mca_pml_base_send_requests, item); \
|
|
sendreq = (mca_pml_cm_thin_send_request_t*)item; \
|
|
sendreq->req_send.req_base.req_pml_type = MCA_PML_CM_REQUEST_SEND_THIN; \
|
|
sendreq->req_mtl.ompi_req = (ompi_request_t*) sendreq; \
|
|
sendreq->req_mtl.completion_callback = mca_pml_cm_send_request_completion; \
|
|
} \
|
|
} while(0)
|
|
|
|
|
|
#define MCA_PML_CM_HVY_SEND_REQUEST_ALLOC(sendreq, comm, dst, \
|
|
ompi_proc) \
|
|
{ \
|
|
ompi_free_list_item_t* item; \
|
|
ompi_proc = ompi_comm_peer_lookup( comm, dst ); \
|
|
if(OPAL_UNLIKELY(NULL == ompi_proc)) { \
|
|
sendreq = NULL; \
|
|
} else { \
|
|
OMPI_FREE_LIST_WAIT_MT(&mca_pml_base_send_requests, item); \
|
|
sendreq = (mca_pml_cm_hvy_send_request_t*)item; \
|
|
sendreq->req_send.req_base.req_pml_type = MCA_PML_CM_REQUEST_SEND_HEAVY; \
|
|
sendreq->req_mtl.ompi_req = (ompi_request_t*) sendreq; \
|
|
sendreq->req_mtl.completion_callback = mca_pml_cm_send_request_completion; \
|
|
} \
|
|
}
|
|
|
|
|
|
#define MCA_PML_CM_SEND_REQUEST_INIT_COMMON(req_send, \
|
|
ompi_proc, \
|
|
comm, \
|
|
tag, \
|
|
datatype, \
|
|
sendmode, \
|
|
buf, \
|
|
count) \
|
|
{ \
|
|
OBJ_RETAIN(comm); \
|
|
OBJ_RETAIN(datatype); \
|
|
(req_send)->req_base.req_comm = comm; \
|
|
(req_send)->req_base.req_datatype = datatype; \
|
|
opal_convertor_copy_and_prepare_for_send( \
|
|
ompi_proc->super.proc_convertor, \
|
|
&(datatype->super), \
|
|
count, \
|
|
buf, \
|
|
0, \
|
|
&(req_send)->req_base.req_convertor ); \
|
|
(req_send)->req_base.req_ompi.req_mpi_object.comm = comm; \
|
|
(req_send)->req_base.req_ompi.req_status.MPI_SOURCE = \
|
|
comm->c_my_rank; \
|
|
(req_send)->req_base.req_ompi.req_status.MPI_TAG = tag; \
|
|
(req_send)->req_base.req_ompi.req_status._ucount = count; \
|
|
(req_send)->req_send_mode = sendmode; \
|
|
(req_send)->req_base.req_free_called = false; \
|
|
}
|
|
|
|
#define MCA_PML_CM_HVY_SEND_REQUEST_INIT( sendreq, \
|
|
ompi_proc, \
|
|
comm, \
|
|
tag, \
|
|
dst, \
|
|
datatype, \
|
|
sendmode, \
|
|
persistent, \
|
|
blocking, \
|
|
buf, \
|
|
count) \
|
|
do { \
|
|
OMPI_REQUEST_INIT(&(sendreq->req_send.req_base.req_ompi), \
|
|
persistent); \
|
|
sendreq->req_tag = tag; \
|
|
sendreq->req_peer = dst; \
|
|
sendreq->req_addr = buf; \
|
|
sendreq->req_count = count; \
|
|
MCA_PML_CM_SEND_REQUEST_INIT_COMMON( (&sendreq->req_send), \
|
|
ompi_proc, \
|
|
comm, \
|
|
tag, \
|
|
datatype, \
|
|
sendmode, \
|
|
buf, \
|
|
count); \
|
|
opal_convertor_get_packed_size( \
|
|
&sendreq->req_send.req_base.req_convertor, \
|
|
&sendreq->req_count ); \
|
|
\
|
|
sendreq->req_blocking = blocking; \
|
|
sendreq->req_send.req_base.req_pml_complete = \
|
|
(persistent ? true:false); \
|
|
} while(0)
|
|
|
|
|
|
#define MCA_PML_CM_THIN_SEND_REQUEST_INIT( sendreq, \
|
|
ompi_proc, \
|
|
comm, \
|
|
tag, \
|
|
dst, \
|
|
datatype, \
|
|
sendmode, \
|
|
buf, \
|
|
count) \
|
|
do { \
|
|
OMPI_REQUEST_INIT(&(sendreq->req_send.req_base.req_ompi), \
|
|
false); \
|
|
MCA_PML_CM_SEND_REQUEST_INIT_COMMON( (&sendreq->req_send), \
|
|
ompi_proc, \
|
|
comm, \
|
|
tag, \
|
|
datatype, \
|
|
sendmode, \
|
|
buf, \
|
|
count); \
|
|
sendreq->req_send.req_base.req_pml_complete = false; \
|
|
} while(0)
|
|
|
|
|
|
#define MCA_PML_CM_SEND_REQUEST_START_SETUP(req_send) \
|
|
do { \
|
|
(req_send)->req_base.req_pml_complete = false; \
|
|
(req_send)->req_base.req_ompi.req_complete = false; \
|
|
(req_send)->req_base.req_ompi.req_state = \
|
|
OMPI_REQUEST_ACTIVE; \
|
|
(req_send)->req_base.req_ompi.req_status._cancelled = 0; \
|
|
} while (0)
|
|
|
|
|
|
#define MCA_PML_CM_THIN_SEND_REQUEST_START(sendreq, \
|
|
comm, \
|
|
tag, \
|
|
dst, \
|
|
sendmode, \
|
|
blocking, \
|
|
ret) \
|
|
do { \
|
|
MCA_PML_CM_SEND_REQUEST_START_SETUP(&(sendreq)->req_send); \
|
|
ret = OMPI_MTL_CALL(isend(ompi_mtl, \
|
|
comm, \
|
|
dst, \
|
|
tag, \
|
|
&sendreq->req_send.req_base.req_convertor, \
|
|
sendmode, \
|
|
blocking, \
|
|
&sendreq->req_mtl)); \
|
|
} while (0)
|
|
|
|
#define MCA_PML_CM_HVY_SEND_REQUEST_BSEND_ALLOC(sendreq, ret) \
|
|
do { \
|
|
struct iovec iov; \
|
|
unsigned int iov_count; \
|
|
size_t max_data; \
|
|
\
|
|
if(sendreq->req_count > 0) { \
|
|
sendreq->req_buff = \
|
|
mca_pml_base_bsend_request_alloc_buf(sendreq->req_count); \
|
|
if (NULL == sendreq->req_buff) { \
|
|
ret = MPI_ERR_BUFFER; \
|
|
} else { \
|
|
iov.iov_base = (IOVBASE_TYPE*)sendreq->req_buff; \
|
|
max_data = iov.iov_len = sendreq->req_count; \
|
|
iov_count = 1; \
|
|
opal_convertor_pack( &sendreq->req_send.req_base.req_convertor, \
|
|
&iov, \
|
|
&iov_count, \
|
|
&max_data ); \
|
|
opal_convertor_prepare_for_send( &sendreq->req_send.req_base.req_convertor, \
|
|
&(ompi_mpi_packed.dt.super), \
|
|
max_data, sendreq->req_buff ); \
|
|
} \
|
|
} \
|
|
} while(0);
|
|
|
|
|
|
#define MCA_PML_CM_HVY_SEND_REQUEST_START(sendreq, ret) \
|
|
do { \
|
|
ret = OMPI_SUCCESS; \
|
|
MCA_PML_CM_SEND_REQUEST_START_SETUP(&(sendreq)->req_send); \
|
|
if (sendreq->req_send.req_send_mode == MCA_PML_BASE_SEND_BUFFERED) { \
|
|
MCA_PML_CM_HVY_SEND_REQUEST_BSEND_ALLOC(sendreq, ret); \
|
|
} \
|
|
if (OMPI_SUCCESS == ret) { \
|
|
ret = OMPI_MTL_CALL(isend(ompi_mtl, \
|
|
sendreq->req_send.req_base.req_comm, \
|
|
sendreq->req_peer, \
|
|
sendreq->req_tag, \
|
|
&sendreq->req_send.req_base.req_convertor, \
|
|
sendreq->req_send.req_send_mode, \
|
|
sendreq->req_blocking, \
|
|
&sendreq->req_mtl)); \
|
|
if(OMPI_SUCCESS == ret && \
|
|
sendreq->req_send.req_send_mode == MCA_PML_BASE_SEND_BUFFERED) { \
|
|
sendreq->req_send.req_base.req_ompi.req_status.MPI_ERROR = 0; \
|
|
ompi_request_complete(&(sendreq)->req_send.req_base.req_ompi, true); \
|
|
} \
|
|
} \
|
|
} while (0)
|
|
|
|
/*
|
|
* The PML has completed a send request. Note that this request
|
|
* may have been orphaned by the user or have already completed
|
|
* at the MPI level.
|
|
* This macro will never be called directly from the upper level, as it should
|
|
* only be an internal call to the PML.
|
|
*/
|
|
#define MCA_PML_CM_HVY_SEND_REQUEST_PML_COMPLETE(sendreq) \
|
|
do { \
|
|
assert( false == sendreq->req_send.req_base.req_pml_complete ); \
|
|
\
|
|
if (sendreq->req_send.req_send_mode == MCA_PML_BASE_SEND_BUFFERED && \
|
|
sendreq->req_count > 0 ) { \
|
|
mca_pml_base_bsend_request_free(sendreq->req_buff); \
|
|
} \
|
|
\
|
|
OPAL_THREAD_LOCK(&ompi_request_lock); \
|
|
if( false == sendreq->req_send.req_base.req_ompi.req_complete ) { \
|
|
/* Should only be called for long messages (maybe synchronous) */ \
|
|
ompi_request_complete(&(sendreq->req_send.req_base.req_ompi), true); \
|
|
} \
|
|
sendreq->req_send.req_base.req_pml_complete = true; \
|
|
\
|
|
if( sendreq->req_send.req_base.req_free_called ) { \
|
|
MCA_PML_CM_HVY_SEND_REQUEST_RETURN( sendreq ); \
|
|
} else { \
|
|
if(sendreq->req_send.req_base.req_ompi.req_persistent) { \
|
|
/* rewind convertor */ \
|
|
size_t offset = 0; \
|
|
opal_convertor_set_position(&sendreq->req_send.req_base.req_convertor, \
|
|
&offset); \
|
|
} \
|
|
} \
|
|
OPAL_THREAD_UNLOCK(&ompi_request_lock); \
|
|
} while (0)
|
|
|
|
|
|
/*
|
|
* Release resources associated with a request
|
|
*/
|
|
#define MCA_PML_CM_HVY_SEND_REQUEST_RETURN(sendreq) \
|
|
{ \
|
|
/* Let the base handle the reference counts */ \
|
|
OBJ_RELEASE(sendreq->req_send.req_base.req_datatype); \
|
|
OBJ_RELEASE(sendreq->req_send.req_base.req_comm); \
|
|
OMPI_REQUEST_FINI(&sendreq->req_send.req_base.req_ompi); \
|
|
opal_convertor_cleanup( &(sendreq->req_send.req_base.req_convertor) ); \
|
|
OMPI_FREE_LIST_RETURN_MT( &mca_pml_base_send_requests, \
|
|
(ompi_free_list_item_t*)sendreq); \
|
|
}
|
|
|
|
/*
|
|
* The PML has completed a send request. Note that this request
|
|
* may have been orphaned by the user or have already completed
|
|
* at the MPI level.
|
|
* This macro will never be called directly from the upper level, as it should
|
|
* only be an internal call to the PML.
|
|
*/
|
|
#define MCA_PML_CM_THIN_SEND_REQUEST_PML_COMPLETE(sendreq) \
|
|
do { \
|
|
assert( false == sendreq->req_send.req_base.req_pml_complete ); \
|
|
\
|
|
OPAL_THREAD_LOCK(&ompi_request_lock); \
|
|
if( false == sendreq->req_send.req_base.req_ompi.req_complete ) { \
|
|
/* Should only be called for long messages (maybe synchronous) */ \
|
|
ompi_request_complete(&(sendreq->req_send.req_base.req_ompi), true); \
|
|
} \
|
|
sendreq->req_send.req_base.req_pml_complete = true; \
|
|
\
|
|
if( sendreq->req_send.req_base.req_free_called ) { \
|
|
MCA_PML_CM_THIN_SEND_REQUEST_RETURN( sendreq ); \
|
|
} \
|
|
OPAL_THREAD_UNLOCK(&ompi_request_lock); \
|
|
} while (0)
|
|
|
|
|
|
/*
|
|
* Release resources associated with a request
|
|
*/
|
|
#define MCA_PML_CM_THIN_SEND_REQUEST_RETURN(sendreq) \
|
|
{ \
|
|
/* Let the base handle the reference counts */ \
|
|
OBJ_RELEASE(sendreq->req_send.req_base.req_datatype); \
|
|
OBJ_RELEASE(sendreq->req_send.req_base.req_comm); \
|
|
OMPI_REQUEST_FINI(&sendreq->req_send.req_base.req_ompi); \
|
|
opal_convertor_cleanup( &(sendreq->req_send.req_base.req_convertor) ); \
|
|
OMPI_FREE_LIST_RETURN_MT( &mca_pml_base_send_requests, \
|
|
(ompi_free_list_item_t*)sendreq); \
|
|
}
|
|
|
|
extern void
|
|
mca_pml_cm_send_request_completion(struct mca_mtl_request_t *mtl_request);
|
|
|
|
#endif
|