Verified via testing with unit tests, etc. that
in fact BTE TX descriptors using CQs configured to
generate IRQs were in fact working correctly on Cray XC. Disable
send message back to self and just use IRQs generated
by completion of TX descriptors posted to BTE.
Honor enable_mpi_threads setting to enable the ugni btl
async progress thread. If the app doesn't request thread-multiple
the thread will not be created.
Using the underlying hardware identification to split
communicators based on locality has been enabled using
the MPI_Comm_Split_Type function.
Currently implemented split's are:
HWTHREAD
CORE
L1CACHE
L2CACHE
L3CACHE
SOCKET
NUMA
NODE
BOARD
HOST
CU
CLUSTER
However only NODE is defined in the standard which is why the
remaning splits are referred to using the OMPI_ prefix instead
of the standard MPI_ prefix.
I have tested this using --without-hwloc and --with-hwloc=<path>
which both give the same output.
NOTE: I think something fishy is going on in the locality operators.
In my test-program I couldn't get the correct split on these requests:
NUMA, SOCKET, L3CACHE
where I suspected a full communicator but only got one.
Turns out the OPAL_FLAGS_UNIQ function was chopping
off multiple instances of --param when set in the
CFLAGS. This can happen when -mnative or other machine
target is specified as part of CFLAGS.
Thanks to QuesarVII for reporting this and supplying a patch.
Fixes#324
- by default allow to register maximum possible (i.e 2 * total_memory)
memory. This beheviour can be turned off using mca parameter
"btl_openib_allow_max_memory_registration"
- In fallback case, use device specific parameters to calulate
memory limit.
Properly test for some dependent libraries; don't just assume
elsewhere in Open MPI's configury will find those libraries. Also
consolidate some CPPFLAGS and clarify some comments.
This gitignore was simply the catenation of all the svn:ignore
properties. However, .gitignore is pretty good at regular expressions
that span the entire tree, so we can consolidate/remove a lot of
redundant entries.
Per discussion starting
http://www.open-mpi.org/community/lists/users/2014/12/26018.php, at
least note that OMPI does not allow adding or deleting attributes in
an attribute copy or delete callback (or any of its children) on the
same object on which the callback was invoked.
As pointed out by @ggouaillardet, we were adding some unnecessary -I
flags to CPPFLAFGS when --without-hwloc was being used. This commit
slightly updates the hwloc191 component configury to only add such
things when the component is, in fact, going to be
compiled/installed.
