This is a minor update to
open-mpi/ompi@c52601f0c5.
If we have vsnprintf(), we might as well not have the rest of the
guess_strlen() routine. Also document the nifty trick/behavior of
vsnprintf() that enables this shortcut (it was new to me!).
We recognize that this means other users of OPAL will need to "wrap" the opal_process_name_t if they desire to abstract it in some fashion. This is regrettable, and we are looking at possible alternatives that might mitigate that requirement. Meantime, however, we have to put the needs of the OMPI community first, and are taking this step to restore hetero and SPARC support.
* redefine orte_process_name_t so it can be converted
between host and network format as an opal_identifier_t
aka uint64_t by the OPAL layer.
* correctly send OPAL_DSTORE_ARCH key
Properly setup the opal_process_info structure early in the initialization procedure. Define the local hostname right at the beginning of opal_init so all parts of opal can use it. Overlay that during orte_init as the user may choose to remove fqdn and strip prefixes during that time. Setup the job_session_dir and other such info immediately when it becomes available during orte_init.
1. Fixes according to (http://www.open-mpi.org/community/lists/devel/2014/09/15869.php)
2. Force mpisync:rank0 to gather results. Now sync info is written by rank0 to the output file.
3. Improve mpirun_prof: 1) adopt to the environment (SLURM/TORQUE); 2) recognize some noteset-related mpirun options.
This commit was SVN r32772.
Replace our old, clunky timing setup with a much nicer one that is only available if configured with --enable-timing. Add a tool for profiling clock differences between the nodes so you can get more precise timing measurements. I'll ask Artem to update the Github wiki with full instructions on how to use this setup.
This commit was SVN r32738.
1. It is not sufficient to put the result of m4_toupper() in a
variable and use that variable as the variable name in
AC_DEFINE_UNQUOTED. Instead, just use m4_toupper() directly in
AC_DEFINE_UNQUOTED. Also, save the result value in a "permanent"
variable that isn't erased, just in case autoconf decides to be lazy
about instantiating the body AC_DEFINE_UNQUOTED and move it later
(this is probably overkill :-) ).
1. Use the OMPI Way of always defining macros (to 0 or 1). Then also
slightly change the logic in util/basename.c to just check
OPAL_HAVE_DIRNAME (because it will always be defined).
Refs trac:4894
This commit was SVN r32723.
The following Trac tickets were found above:
Ticket 4894 --> https://svn.open-mpi.org/trac/ompi/ticket/4894
WHAT: Merge the PMIx branch into the devel repo, creating a new
OPAL “lmix” framework to abstract PMI support for all RTEs.
Replace the ORTE daemon-level collectives with a new PMIx
server and update the ORTE grpcomm framework to support
server-to-server collectives
WHY: We’ve had problems dealing with variations in PMI implementations,
and need to extend the existing PMI definitions to meet exascale
requirements.
WHEN: Mon, Aug 25
WHERE: https://github.com/rhc54/ompi-svn-mirror.git
Several community members have been working on a refactoring of the current PMI support within OMPI. Although the APIs are common, Slurm and Cray implement a different range of capabilities, and package them differently. For example, Cray provides an integrated PMI-1/2 library, while Slurm separates the two and requires the user to specify the one to be used at runtime. In addition, several bugs in the Slurm implementations have caused problems requiring extra coding.
All this has led to a slew of #if’s in the PMI code and bugs when the corner-case logic for one implementation accidentally traps the other. Extending this support to other implementations would have increased this complexity to an unacceptable level.
Accordingly, we have:
* created a new OPAL “pmix” framework to abstract the PMI support, with separate components for Cray, Slurm PMI-1, and Slurm PMI-2 implementations.
* Replaced the current ORTE grpcomm daemon-based collective operation with an integrated PMIx server, and updated the grpcomm APIs to provide more flexible, multi-algorithm support for collective operations. At this time, only the xcast and allgather operations are supported.
* Replaced the current global collective id with a signature based on the names of the participating procs. The allows an unlimited number of collectives to be executed by any group of processes, subject to the requirement that only one collective can be active at a time for a unique combination of procs. Note that a proc can be involved in any number of simultaneous collectives - it is the specific combination of procs that is subject to the constraint
* removed the prior OMPI/OPAL modex code
* added new macros for executing modex send/recv to simplify use of the new APIs. The send macros allow the caller to specify whether or not the BTL supports async modex operations - if so, then the non-blocking “fence” operation is used, if the active PMIx component supports it. Otherwise, the default is a full blocking modex exchange as we currently perform.
* retained the current flag that directs us to use a blocking fence operation, but only to retrieve data upon demand
This commit was SVN r32570.
The _strdup usage in opal/util/basename looks like it was a product of
Windows compatibility (see r11336), which we don't care about any
more. Further, opal/win32/win_compat.h, which we sitll maintain for
cygwin compatibility, #define's strdup to _strdup (which is what
Microsoft wants you to use).
So this old _strdup in opal/util/basename.c (and its corresponding
check in configure.ac) should just be removed.
This commit was SVN r32450.
The following SVN revision numbers were found above:
r11336 --> open-mpi/ompi@a28b025150
r32449 --> open-mpi/ompi@d5a3448b8b
_strdup is not part of any include file i could find on Solaris 10.
manually add the _strdup prototype if needed.
cmr=v1.8.2:reviewer=jsquyres
This commit was SVN r32449.
communication library should use to initialize itself.
Ralph will champion this change back with an RFC if there is a realistic
need/use case from the community.
This commit was SVN r32361.
The following SVN revision numbers were found above:
r32355 --> open-mpi/ompi@c903917f47
WHAT: Open our low-level communication infrastructure by moving all necessary components (btl/rcache/allocator/mpool) down in OPAL
All the components required for inter-process communications are currently deeply integrated in the OMPI layer. Several groups/institutions have express interest in having a more generic communication infrastructure, without all the OMPI layer dependencies. This communication layer should be made available at a different software level, available to all layers in the Open MPI software stack. As an example, our ORTE layer could replace the current OOB and instead use the BTL directly, gaining access to more reactive network interfaces than TCP. Similarly, external software libraries could take advantage of our highly optimized AM (active message) communication layer for their own purpose. UTK with support from Sandia, developped a version of Open MPI where the entire communication infrastucture has been moved down to OPAL (btl/rcache/allocator/mpool). Most of the moved components have been updated to match the new schema, with few exceptions (mainly BTLs where I have no way of compiling/testing them). Thus, the completion of this RFC is tied to being able to completing this move for all BTLs. For this we need help from the rest of the Open MPI community, especially those supporting some of the BTLs. A non-exhaustive list of BTLs that qualify here is: mx, portals4, scif, udapl, ugni, usnic.
This commit was SVN r32317.
Two leaks are fixed by this commit:
- opal_dss.lookup_data_type returns an allocated string. Free it.
- opal_ifaddrtokindex was leaking a struct addrinfo. Ensure that is
released before returning.
cmr=v1.8.2:reviewer=rhc
This commit was SVN r31777.
code.
This commit fixes minor errors in the incorrectly-committed r31513
(new fd close-on-exec convenience function).
Refs trac:4550
This commit was SVN r31514.
The following SVN revision numbers were found above:
r31513 --> open-mpi/ompi@e1655ae68d
The following Trac tickets were found above:
Ticket 4550 --> https://svn.open-mpi.org/trac/ompi/ticket/4550
Paul Hargrove pointed out that Stevens tells us that we should
FD_GETFL before FD_SETFL. And so we shall.
Make a new convenience function to do this (opal_fd_set_cloexec()),
just so that we don't have to litter this 2-step process throughout
the code.
Refs trac:4550
This commit was SVN r31513.
The following Trac tickets were found above:
Ticket 4550 --> https://svn.open-mpi.org/trac/ompi/ticket/4550
* Include opal_stdint.h so that we have uin32_t
cmr=v1.7.5:ticket=trac:4298
This commit was SVN r30890.
The following Trac tickets were found above:
Ticket 4298 --> https://svn.open-mpi.org/trac/ompi/ticket/4298
1. Changed rng_buff_t --> opal_rng_buff_t
2. All global variables obey the prefix rule
3. Old code has been removed
4. Found a couple of unnecessary includes
Refs trac:4298
This commit was SVN r30807.
The following Trac tickets were found above:
Ticket 4298 --> https://svn.open-mpi.org/trac/ompi/ticket/4298
