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>
It was introduced in PR https://github.com/open-mpi/ompi/pull/1228
in particular in commit 041a6a9f53033a12d1cbf5c1af36cb16c7cdcc36.
Original solution was using "flexible array member" called "mxm_base"
to "fall-through" to the "mxm" send/recv member that located in the
outer structure.
After changing number of elements in "mxm_base" from 0 to 1 we actually
allocating 2 mxm_req_base_t elements which leads to increased overal
size and harms cache performance.
It also brakes "mca_pml_yalla_check_request_state" function.
Use of the old ompi_free_list_t and ompi_free_list_item_t is
deprecated. These classes will be removed in a future commit.
This commit updates the entire code base to use opal_free_list_t and
opal_free_list_item_t.
Notes:
OMPI_FREE_LIST_*_MT -> opal_free_list_* (uses opal_using_threads ())
Signed-off-by: Nathan Hjelm <hjelmn@lanl.gov>
