The problem was that we doubly decremented the active count on blocking receives that we stall to complete. This moved the active count into the negative. With a negative count for 'active' a message that should have been accounted for would be over looked. This then causes the bookmark exchange to post a drain for a message that was never posted, thus locking the protocol. By eliminating the decrement on the 'active' count when we attempt to post the drain message, we only the decrement this counter when the outstanding blocking recv completes during the stall operation.
Refs trac:1619
Does not close this ticket since there is an outstanding potential problem with ANY_SOURCE and ANY_TAG, as referenced in the ticket.
This should be moved to v1.3
This commit was SVN r20147.
The following Trac tickets were found above:
Ticket 1619 --> https://svn.open-mpi.org/trac/ompi/ticket/1619
architectures (read SPARC64) require aligned accesses, we increase the storage space
when we pack a datatype description to keep the fields aligned. This has to be done
on both sided in order to be consistent.
This commit was SVN r20133.
Too much complexity - just put the name in the default mca param file iff you actually have a default hostfile.
This commit was SVN r20129.
The following SVN revision numbers were found above:
r20128 --> open-mpi/ompi@ea01da0eee
problem seems to come from the free list, but due to lack of time to
understand it completely, I provide this fix. Basically, there is no
waiting in the MX BTL anymore, if we cannot allocate a fragment we
rely on the PML to take the corrective actions.
This commit was SVN r20124.
The solution is not to compute the OVERLAP flag, as the best we can do
is an approximative answer. Without this flag the unpack can leads to
unexpected answers if the data-type contain any overlapping regions.
As such datatypes are illegal in MPI, this became a user responsability.
This commit was SVN r20120.
in the v1.3 section (not the v1.2.5 section -- thanks for noticing,
Tim!). Refs trac:1705 -- this commit should be considered part of that
CMR.
This commit was SVN r20115.
The following SVN revision numbers were found above:
r20096 --> open-mpi/ompi@cad0f41391
The following Trac tickets were found above:
Ticket 1705 --> https://svn.open-mpi.org/trac/ompi/ticket/1705
This commit fixes trac:1691
Thanks to Matthias Hovestadt for identifying this issue.
This commit was SVN r20114.
The following Trac tickets were found above:
Ticket 1691 --> https://svn.open-mpi.org/trac/ompi/ticket/1691
corrections to non-windows files (but within ifdef __WINDOWS__)
type casts, event library for windows use win32.
in orte runtime, add windows sockets handling and object construction.
This commit was SVN r20110.
changes to the already existing ccp components
event/win32.c: merge old FD handling into new
opal_installdirs_windows.c:fix the registry handling
This commit was SVN r20109.
Basically, the remaining problem turned out to be:
1. closing stdout/stderr during orte_finalize of mpirun
2. inadvertently setting up a write event on fd = -1
3. devising a scheme to more accurately track when the stdin write event was active vs closed so it only got released once
This passed prelim MTT testing by Jeff and Tim, but should soak for awhile before migrating to 1.3.
This commit was SVN r20106.
The following SVN revision numbers were found above:
r20064 --> open-mpi/ompi@a07660aea8
r20068 --> open-mpi/ompi@ec930d14a9
r20074 --> open-mpi/ompi@2940309613
It is a small launch performance improvement as now we relay the launch cmd across to the next daemon before taking the time to launch our own local procs. Still, it does allow more parallel operations during the launch procedure.
This commit was SVN r20104.
Enable one mpirun to act as the server for another mpirun when doing MPI_Publish_name and its associated operations. The user is responsible, of course, for ensuring that the mpirun acting as a server outlives any mpiruns using it in that capacity.
Add a cmd line option to mpirun --report-pid that prints out mpirun's pid. Allow the --ompi-server option to now take pid:# (or PID:#) of the mpirun to be used as the server, and then look that pid up by searching the local mpirun contact infos for it.
This commit was SVN r20102.
1. minor modification to include two new opal MCA params:
(a) opal_profile: outputs what components were selected by each framework
currently enabled for most, but not all, frameworks
(b) opal_profile_file: name of file that contains profile info required
for modex
2. introduction of two new tools:
(a) ompi-probe: MPI process that simply calls MPI_Init/Finalize with
opal_profile set. Also reports back the rml IP address for all
interfaces on the node
(b) ompi-profiler: uses ompi-probe to create the profile_file, also
reports out a summary of what framework components are actually
being used to help with configuration options
3. modification of the grpcomm basic component to utilize the
profile file in place of the modex where possible
4. modification of orterun so it properly sees opal mca params and
handles opal_profile correctly to ensure we don't get its profile
5. similar mod to orted as for orterun
6. addition of new test that calls orte_init followed by calls to
grpcomm.barrier
This is all completely benign unless actively selected. At the moment, it only supports modex-less launch for openib-based systems. Minor mod to the TCP btl would be required to enable it as well, if people are interested. Similarly, anyone interested in enabling other BTL's for modex-less operation should let me know and I'll give you the magic details.
This seems to significantly improve scalability provided the file can be locally located on the nodes. I'm looking at an alternative means of disseminating the info (perhaps in launch message) as an option for removing that constraint.
This commit was SVN r20098.
