* use dlsym for MPI functions
to allow compiling without MPI support, convert the usage of MPI functions and symbols to be based on a dlopen/dlsym based mechanism. Turns out this cannot be done entirely vendor neutral, slightly different solutions might be required for Open MPI, MPICH and the new MPI ABI.
* checkpoint
more work to be done.
* checkpoint 2
* checkpoint 3
* checkpoint 4
examples compile and link correctly
* checkpoitn 5 (I think)
* Checkpoitn 6
* dyld-mpi: adapt GDA
* dyldmpi: tests that depend on MPI need to link with it themselves
* do not ../mpi_instance.h
* dyldmpi: make the symetricHeapTestFixture compile
* dyldmpi: Change cmakery, compiles and run gda w/o external MPI
* Make it also compile in external MPI mode
* dyldmpi: ipc unit tests compile but do not link
* dyldmpi: new approach, if external mpi required, link with mpi,
otherwise use ompi5 abi
* C-style comments in cmakelist..
* dyldmpi: examples: do not fail compiling if MPI not found at build time,
instead do not compile the MPI required examples
* more updates to CMake logic
* convert RO backend
and a few other cleanups
* update some unit tests
to work with the dlopen MPI environment correctly.
---------
Co-authored-by: Aurelien Bouteiller <abouteil@amd.com>
[ROCm/rocshmem commit: e4c427a736]
* relax MPI dependency from code
This commit (series) removes the strict dependency on MPI in code base.
rocSHMEM will still be compiled with MPI, but the goal is to make the
code work even if MPI_Init_thread has not been invoked, at least for
certain, well-defined scenarios. Hence, the goal is not remove any
mentioning of MPI from rocSHMEM, but to ensure correct execution of the
ipc conduit even if the library has been initialized using other means.
Details:
- add non-MPI version of remote_heap and WindowInfo classes
- host interfaces work on WindowInfoMPI, they will not work with the
non-MPI code path. Since it is unclear whether we plan to support the
host interfaces at all, this is probably not a major limitation.
* update symmetric_heap structures and backend
* first cut on initialization
and enabling non-MPI initialization of the IPCBackend
* add non-MPI hostInterface methods
at the moment, only barrier_all and sync_all are explicitely supported.
* add non-mpi version of ipc_policy
and a number of smaller fixes required in other files.
A small init/finalize test already passes now with the branch.
* add non-mpi team_split_strided code
* minor fixes for non-MPI use-case
* disable symmetric-heap-window-ionfo test
disable this test for now just to make the compilation pass. Will have
to rework it.
* make no-mpi great again
after rebasing on top of the MPI singleton changes.
* enable running functional tests with uuid init
to run the functional tests using rocshmem_init_attr and the uuid
mechanism requires
a) a PMIx installation on the system
b) setting the environment variable ROCSHMEM_TEST_UUID=1
* fix multi-team creation bug
fix a bug occuring when creating many teams, which was the result of
incorrectly applying two indices in our own implementation of Allreduce.
* make unit tests pass again
* reverse offload was impacted by code change
fix the RO conduit to cope wioth the non-MPI path introduced for the IPC
conduit.
* update to cmake logic to find pmix
* Update src/memory/window_info.hpp
Co-authored-by: Yiltan <ytemucin@amd.com>
* Update CMakeLists.txt
Co-authored-by: Yiltan <ytemucin@amd.com>
* document ROCSHMEM_UNIQUEID_NO_MPI
* rename env. variable to UNIQUEID_WITH_MPI
* update host.cpp to use USE_HDP_FLUSH macro
instead of the deprecated USE_COHERENT_HEAP.
* add note for running example with RO conduit
add a note clarifying that running init_attr_test from the example
directory requires setting an additional environment variable with the
RO conduit.
* Find PMIx in more cases, only apply pmix build options to the test that
needs it, if OMPI_COMM_WORLD_LOCA_RANK is not setenv, abort
---------
Co-authored-by: Yiltan <ytemucin@amd.com>
Co-authored-by: Aurelien Bouteiller <abouteil@amd.com>
[ROCm/rocshmem commit: 6ea5edc951]
Edgar Gabriel
Avinash Kethineedi
Brandon Potter