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.
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.
of more than one of the btl_openib_if_include, btl_openib_if_exclude,
btl_openib_ipaddr_include, or btl_openib_ipaddr_exclude MCA parameters.
This commit was SVN r20053.
determining which IP address to use when transmitting data. Also it adds logic
to prevent usage of more than one of the btl_openib_if_include,
btl_openib_if_exclude, btl_openib_ipaddr_include, or btl_openib_ipaddr_exclude
MCA parameters.
This should complete the code modifications needed for ticket 1665.
This commit was SVN r20052.
determing of the IP subnet. The netmask was being used improperly when
determining which subnet each connection is on. Part two is the ability to
include/exclude specific subnets.
This patch fixes ticket #1665
This commit was SVN r20016.
* If max_inline_data == -1 perform runtime detection
* If max_inline_data >=0 use the value provided
* If the user does not explicitly set this via command line, use the value from INI file
This commit fixes trac:1662
This commit was SVN r19995.
The following Trac tickets were found above:
Ticket 1662 --> https://svn.open-mpi.org/trac/ompi/ticket/1662
This will sit in trunk for a few days - would like to actually see some errors reported to syslog before moving the code to 1.3
This commit was SVN r19986.
another bug. This also causes 0-byte requests to be treated as a buffer
error, causing the base request to be requeued. On Cray XT, it may be
temporarily impossible to make allocations for buffer requests, as the
default stack size is small (8 MB) and there is no true swap device.
Even with the stack size increased, there will be cases in which this
condition recurs.
One possibility is to make the buffer allocations off of the heap; but,
this does not change the fact that eventually an out-of-memory condition
will occur and we need to support multiple receives in transit, a
condition for which the available buffer space may change. On the other
hand, if we switch to allocating the buffer space from the heap, we will
need to return an error when the allocation fails and there are no other
buffers in transit.
This commit was SVN r19981.
parameters on the connecting side also. Also move define of IF_NAMESIZE
into if.h file. And lastly, add one verbose debug message which may be
useful if we run into other issues like this.
This commit fixes trac:1573.
This commit was SVN r19932.
The following Trac tickets were found above:
Ticket 1573 --> https://svn.open-mpi.org/trac/ompi/ticket/1573
in case of failure more user friendly. In addition we now fully integrate
with the MX_BONDING features (i.e the multi-rails bonding can be done either
at the PML OB1 level, or deep down in the MX library). This feature is driven
by the btl_mx_bonding MCA parameter.
Plus some extra features:
- Correctly compute the bandwidth in case of bonding.
- Nicely handle any mapper access errors.
This commit was SVN r19874.
<infiniband/driver.h> cannot be included because it will fail to
compile. So per advice from Roland, in that case, just put manually
include the one ibv_*() prototype that we need. Use an undocumented
feature of AC_CHECK_HEADERS to check for <infiniband/driver.h> that I
was told on the autoconf mailing list (see the comment for more
details).
This commit was SVN r19857.
We were only allocating one whereas we would typically need
one per interface. Most of the time we got lucky and we
happily trundled over unallocated memory. But with enough
interfaces, we would get a SEGV.
Also add include to fix compilation with static libs.
This commit was SVN r19845.
THREAD_MULTIPLE. There's a new (hidden) MCA parameter to re-enable
these BTLs in the presence of THREAD_MULTIPLE:
btl_base_thread_multiple_override. This MCA parameter should ''only''
be used by developers who are working on make their BTLs thread safe;
it should ''not'' be used by end-users!
This commit was SVN r19826.
The following Trac tickets were found above:
Ticket 1588 --> https://svn.open-mpi.org/trac/ompi/ticket/1588
We had a public symbol named "already_opened". This commit changes
the name to mca_btl_base_already_opened.
I guess it's good we have the visibility stuff enabled by default!
:-)
This commit was SVN r19791.
1. Allow MX bonding via btl_mx_bonding MCA parameter. With this on, Open MPI
suppose that lib MX will do the bonding, and we will only return one BTL.
Otherwise, we return as many as devices.
2. Decrease the memory footprint, by cleaning up what we store about the
peers and how we store it.
3. Allow multiple MX routes that share the same mapper. In this particular
case we will link by their nic_id.
4. Allow multiple MX routes with multiple mappers. In this case we match
the NICs based on the last 6 digits of the mapper MAC.
5. Increase the size of the eager and rendez-vous eager limits in the
case where we are unable to register an unexpected callback with MX.
6. Increase the default max number of MX fragments.
7. Increase the max number of MX BTLs.
8. Only allow mx_if_include and mx_if_exclude if we have acess to the
mapper.
This commit was SVN r19788.
There is still a problem with OpenIB and threads (external to C/R functionality). It has been reported in Ticket #1539
Additionally:
* Fix a file cleanup bug in CRS Base.
* Fix a possible deadlock in the TCP ft_event function
* Add a mca_base_param_deregister() function to MCA base
* Add whole process checkpoint timers
* Add support for BTL: OpenIB, MX, Shared Memory
* Add support Mpool: rdma, sm
* Sundry bounds checking an cleanup in some scattered functions
This commit was SVN r19756.
I run IMB exchange on two QS22 machines with r19674 and it got stucked after 256 or 512 bytes every time.
After applying r19717 the test passed, so I guess this is a essential patch.
This commit was SVN r19752.
The following SVN revision numbers were found above:
r19674 --> open-mpi/ompi@15c47a2473
r19717 --> open-mpi/ompi@0a765cd788
