- added detection of new API into configuration
- added tag_send call implemented using new API
- added MPI_Send/MPI_Isend/MPI_Recv/MPI_Irecv implementations
Signed-off-by: Sergey Oblomov <sergeyo@mellanox.com>
(cherry picked from commit 75bda25ddbeea18bb001f367a712dc72592e1e58)
without this fix, an error handler invoked on pml_ucx request would
segfault while trying to dereference requests[i]->req_mpi_object.comm
(picked from master f36eeef)
Signed-off-by: Yossi Itigin <yosefe@mellanox.com>
- in sine cases persistent request was deleted during completion
callback, this cause double free of linked UCX request (assert
in debug build or hang in release build)
- UCX request is freed prior completion callback
Signed-off-by: Sergey Oblomov <sergeyo@mellanox.com>
(cherry picked from commit 6fe0a73861b53efac12e740c831802057391525d)
This commit adds the `req_start` member to the `ompi_request_t` struct.
The `MPI_START` and `MPI_STARTALL` routines call this callback function
instead of `MCA_PML_CALL(start(...))`. So components that return
persistent request must set this member to their request objects.
`mca_pml_base_module_t::pml_start` is not deleted because
`MCA_PML_CALL(start(...))` is still used elsewhere across OMPI.
Signed-off-by: KAWASHIMA Takahiro <t-kawashima@jp.fujitsu.com>
* Remodel the request.
Added the wait sync primitive and integrate it into the PML and MTL
infrastructure. The multi-threaded requests are now significantly
less heavy and less noisy (only the threads associated with completed
requests are signaled).
* Fix the condition to release the request.
We should invoke OBJ_CONTRUCT/OBJ_DESTRUCT only on regular requests
(which are embedded inside UCX requests) and for the completed request.
Persistent requests are already constructed/destructed by the free list.
This fixes an assertion in ompi_request_destruct.
