Re-enable "./autogen.sh -no-ompi" again. If you -no-ompi, the entire OMPI
configury is skipped and the entire ompi/ subtree is not built. There's
some simple m4-isms that prune out the relevant parts.
I added ompi/config/, orte/config/, and opal/config/ directories. I moved a
bunch of m4 files from the top-level config/ dir into ompi/config/, and a few
into orte/config/.
Note that all 3 <project>/config directories have a config_files.m4 file. This
file contains the AC_CONFIG_FILES list for that project. The AC_CONFIG_FILES
call cannot be in an AC_DEFUN macro and conditionally called -- if it is
included at all, Autoconf will process it. Hence, these config_files.m4 files
don't AC_DEFUN -- they just have AC_CONFIG_FILES. m4_ifdef() is used to
conditionally include the files or not.
I moved a bunch of obvious OMPI-only m4 files from config/ to ompi/config/,
but I'm sure that there's more that could go. A ticket will be filed with
thoughts on future work in this area.
This commit was SVN r22113.
This commit does a bunch of things:
* Address all remaining code review items from CMR #2023:
* Defer mmap setup to be lazy; only set it up the first time we
invoke a collective. In this way, we don't penalize apps that
make lots of communicators but don't invoke collectives on them
(per #2027).
* Remove the extra assignments of mca_coll_sm_one (fixing a
convertor count setup that was the real problem).
* Remove another extra/unnecessary assignment.
* Increase libevent polling frequency when using the RML to
bootstrap mmap'ed memory.
* Fix a minor procs-related memory leak in btl_sm.
* Commit a datatype fix that George and I discovered along the way to
fixing the coll sm.
* Improve error messages when mmap fails, potentially trying to
de-alloc any allocated memory when that happens.
* Fix a previously-unnoticed confusion between extent and true_extent
in coll sm reduce.
This commit was SVN r22049.
The following Trac tickets were found above:
Ticket 2023 --> https://svn.open-mpi.org/trac/ompi/ticket/2023
(yay cisco webex!). Make sure we only go up to OPAL max datatype, not
OMPI max datatype.
This commit was SVN r22016.
The following Trac tickets were found above:
Ticket 2028 --> https://svn.open-mpi.org/trac/ompi/ticket/2028
shmem progress (or the Windows equiv). Instead, poll hard on the
condition, but periocially call opal_progress(). This allows
badly-formed apps (e.g., the ibm test communicator/bsend_free) to
actually complete.
To be clear, there are far too many apps out there that assume that
MPI collectives will actually progress the rest of MPI. I don't like
putting in a feature to enable broken apps, but I have a dim
recollection of this issue coming up before (apps "hanging" when
testing the sm coll because they assumed that calling collectives
would trigger other MPI progress). Rather than have people claim that
OMPI is broken, I prefer to put in this "workaround". :-(
Indeed, the bsend_free test ''may'' be coded that way for exactly that
reason...? I don't remember offhand...
This commit was SVN r21984.
This commit fixes the ft_event logic so that it uses the normal destroy funcitonality instead of the workaround with the component that was previously there. All and all it made for cleaner code, which is always good.
If r21967 moves to v1.3, this patch will need to be moved as well.
This commit was SVN r21972.
The following SVN revision numbers were found above:
r21967 --> open-mpi/ompi@533633b8cb
Before this, we would restore the topmost old session directory. This commit makes sure that we remove it when we are done with it.
This commit was SVN r21971.
in the v1.2 series the cid's could never go above the max. allowed for a
particular pml. Because of that, pml_add_comm never checked for the cid, and
in fact pml_add_comm was called in comm_set, which is *before* we knew the
cid.
in the v1.3 series (and trunk) we check now the cid to detect overflow, and
because of that pml_add_comm has been moved *after* the cid allocation
routine, namely into the comm_activate routine.
in the v1.2 series, the comm_activate contained a synchronization step of the
old communicator in order to prevent incoming fragments on the new
communicator, with the main problem being that the allreduce in the
communicator allocation finished at different times on different processes,
and thus, this scenario could and did really occur.
in the v1.3 series, the comm_activate does not contain the synchronization
step anymore, since we introduced the new queue for fragments with unknown
cid. The problem is however, that whether a fragment is known or not is
decided by using ompi_comm_lookup(), which will return something useful as
soon as the cid allocation finished, even before pml_add_comm has been
called. So there is a small time gap where we will not post a message into
queue for unknown cid's, but we can also not look up the process structure
belonging to the rank in that comm ( that is in pml_ob1_match_recv_frag or
something like that).
The current fix reintroduces the synchronization step in comm_activate, and
ensures that no fragment can be received for a new communicator before the
synchronization occurs , and thus comm_nextcid() and pml_add_comm has been
called. It seems to be the safest and easiest way for now. Welcome back, v1.2.
This commit was SVN r21970.
* Various cosmetic/style updates in the btl sm
* Clean up concept of mpool module (I think that code was written way
back when the concept of "modules" was fuzzy)
* Bring over some old fixes from the /tmp/timattox-sm-coll/ tree to
fix potential segv's when mmap'ed regions were at different
addresses in different processes (thanks Tim!).
* Change sm coll to no longer use mpool as its main source of shmem;
rather, just mmap its own segment (because it's fixed size --
there was nothing to be gained by using mpool; shedding the use of
mpool saved a lot of complexity in the sm coll setup). This
effectively made Tim's fixes moot (because now everything is an
offset into the mmap that is computed locally; there are no global
pointers). :-)
* Slightly updated common/sm to allow making mmap's for a specific
set of procs (vs. ''all'' procs in the process). This potentially
allows for same-host-inter-proc mmaps -- yay!
* Fixed many, many things in the coll sm (particularly in reduce):
* Fixed handling of MPI_IN_PLACE in reduce and allreduce
* Fixed handling of non-contiguous datatypes in reduce
* Changed the order of reductions to go from process (n-1)'s data
to process 0's data, because that's how all other OMPI coll
components work
* Fixed lots of usage of ddt functions
* When using a non-contiguous datatype, if the root process is not
(n-1), now we used a 2nd convertor to copy from shmem to the rbuf
(saves a memory copy vs. what was done before)
* Lots and lots of little cleanups, clarifications, and minor
optimizations (although still more could be done -- e.g., I think
the use of write memory barriers is fairly sub-optimal; they
could be ganged together at the root, for example)
I'm marking this as "fixes trac:1988" and closing the ticket; if something
is still broken, we can re-open the ticket.
This commit was SVN r21967.
The following Trac tickets were found above:
Ticket 1988 --> https://svn.open-mpi.org/trac/ompi/ticket/1988
As noted in http://www.open-mpi.org/community/lists/devel/2009/08/6741.php,
we do not correctly free a dupped predefined datatype.
The fix is a bit more involving. See ticket for details.
Tested with ibm tests and mpi_test_suite (though there's two "old" failures
zero5.c and zero6.c)
Thanks to Lisandro Dalcin for bringing this up.
This commit was SVN r21929.
The following Trac tickets were found above:
Ticket 2014 --> https://svn.open-mpi.org/trac/ompi/ticket/2014
