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.
66 строки
2.0 KiB
C
66 строки
2.0 KiB
C
/*
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* Copyright (c) 2013 Mellanox Technologies, Inc.
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* 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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#ifndef OSHMEM_SPML_YODA_GET_REQUEST_H
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#define OSHMEM_SPML_YODA_GET_REQUEST_H
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#include "opal/mca/btl/btl.h"
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#include "oshmem/mca/spml/base/spml_base_putreq.h"
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#include "opal/mca/mpool/base/base.h"
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#include "ompi/mca/pml/ob1/pml_ob1_comm.h"
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#include "ompi/mca/bml/bml.h"
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#include "oshmem/mca/spml/yoda/spml_yoda_rdmafrag.h"
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#include "oshmem/mca/spml/yoda/spml_yoda.h"
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#include "orte/runtime/orte_globals.h"
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#include "oshmem/mca/spml/base/spml_base_getreq.h"
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BEGIN_C_DECLS
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struct mca_spml_yoda_getreq_parent {
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int32_t active_count;
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};
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struct mca_spml_yoda_get_request_t {
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mca_spml_base_get_request_t req_get;
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uint64_t *p_dst;
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struct mca_spml_yoda_getreq_parent *parent;
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mca_spml_yoda_rdma_frag_t get_frag;
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};
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typedef struct mca_spml_yoda_get_request_t mca_spml_yoda_get_request_t;
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OBJ_CLASS_DECLARATION(mca_spml_yoda_get_request_t);
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static inline mca_spml_yoda_get_request_t *mca_spml_yoda_getreq_alloc(int dst)
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{
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ompi_free_list_item_t *item;
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mca_spml_yoda_get_request_t *getreq;
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OMPI_FREE_LIST_WAIT_MT(&mca_spml_base_get_requests, item);
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getreq = (mca_spml_yoda_get_request_t*) item;
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assert(getreq);
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getreq->req_get.req_base.req_free_called = false;
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getreq->req_get.req_base.req_oshmem.req_complete = false;
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return getreq;
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}
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void mca_spml_yoda_get_completion(mca_btl_base_module_t* btl,
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struct mca_btl_base_endpoint_t* ep,
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struct mca_btl_base_descriptor_t* des,
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int status);
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void mca_spml_yoda_get_response_completion(mca_btl_base_module_t* btl,
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struct mca_btl_base_endpoint_t* ep,
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struct mca_btl_base_descriptor_t* des,
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int status);
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END_C_DECLS
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#endif /* OSHMEM_SPML_YODA_GET_REQUEST_H */
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