This commit adds an API for registering and querying performance
variables (mca_base_pvar) in the MCA base. The existing MCA variable
system API has been updated to reflect the new API: MCA variable
groups have performance variables, and new types have been added (double,
unsigned long long) to reflect what is required by the MPI_T
interface. Additionally, the MCA variable group code has been split
into its own set of files: mca_base_var_group.[ch].
Details of the new API can be found in doxygen comments in the header:
mca_base_pvar.h.
Other changes to the variable system:
- Use an opal_hash_table to speed up variable/group lookup.
- Clean up code associated with MCA variable types.
- Registered performance variables are printed by ompi_info -a. In the
future an option should be added to control this behavior.
Changes to OMPI:
- Added full support for the MPI_T performance variable interface.
This commit was SVN r28800.
identified by Takahiro Kawashima. The packed length was reported as a
max bound and not provided on the unpacking side, so the unpacking
buffer could become out of sync with the content stored after the
packed representation.
The fix force the packing operation itself before reporting the length,
so we always report now the real number of bytes in the packed
representation.
cmr:v1.7.3:reviewer=jsquyres
This commit was SVN r28790.
This commit improved the small message latency and bandwidth when using
the vader btl. These improvements should make performance competative
with other MPI implementations.
This commit was SVN r28760.
many builds. I am temporarily .ompi_ignore'ing this component until
it can be fixed by its owner.
* It calls AC_MSG_ERROR, which configure.m4 scripts are ''never''
supposed to do. If you don't want to build, then call $2.
* All static and --disable-dlopen builds are broken; they fall afoul
of whatever test configure.m4 is doing and therefore error out of
configure entirely (vs. simply disabling the hcoll component).
* There appear to be multiple shell scripting errors in the
configure.m4. Here's the output of "./configure --disable-dlopen":
{{{
--- MCA component coll:hcoll (m4 configuration macro)
checking for MCA component coll:hcoll compile mode... static
checking --with-hcoll value... simple ok (unspecified)
./configure: line 421: test: basic: integer expression expected
configure: error: Can not use coll/hcoll and coll/ml (static build)
simultaneously. You have two options:
1. Use static build & disable ml with:
--enable-mpi-no-build=coll-ml
2. Use dso build for ML & disable ml at runtime: -mca
coll self
./configure: line 310: return: basic: numeric argument required
./configure: line 320: exit: basic: numeric argument required
}}}
Finally, all of these configure.m4 errors aside, I don't understand
why there is a ''compile-time'' exclusion between the hcoll and ml
components. Why isn't this a ''run-time'' decision? Having what
seems to be an unnecessary compile-time exclusion goes against the
general Open MPI philosophy.
Note: Open MPI 1.7 is also broken in all the same ways. I suggest
that the RM's .ompi_ignore hcoll over there, too.
Mellanox: please fix.
This commit was SVN r28748.
for the SM and TCP BTLs, as well as the mca_btl_base_param_register()
function (which registers MCA params for all BTLs).
The guidelines in
https://svn.open-mpi.org/trac/ompi/wiki/MCAParamLevels were used to
pick these levels.
This commit was SVN r28746.
value to signal that the operation of retrieving the element from the free list
failed. However in this case the returned pointer was set to NULL as well, so the
error code was redundant. Moreover, this was a continuous source of warnings when
the picky mode is on.
The attached parch remove the rc argument from the OMPI_FREE_LIST_GET and
OMPI_FREE_LIST_WAIT macros, and change to check if the item is NULL instead of
using the return code.
This commit was SVN r28722.
This patch reshape the way we deal with topologies completely. Where
our topologies were mainly storage components (they were not capable
of creating the new communicator), the new version is built around a
[possibly] common representation (in mca/topo/topo.h), but the functions
to attach and retrieve the topological information are specific to each
component. As a result the ompi_create_cart and ompi_create_graph functions
become useless and have been removed.
In addition to adding the internal infrastructure to manage the topology
information, it updates the MPI interface, and the debuggers support and
provides all Fortran interfaces.
This commit was SVN r28687.
