function to make it more scalable. The memory fragmentation is still high, but
at least in most of the cases (where all ressources are correctly released
before the cleanup) the code is now highly efficient. Before the code execute
in (N * (N-1))!, which take a while when the number of allocated ressources
increase (which is the case when a lot of unexpected messages are created).
The fix consist of checking if all items are freed and if it's the case
then do not recreate the free items list (as we know that everything will
be released). If this condition is not true, we fall back on the
original execution path (which is still sub-sub-sub ... optimal).
This commit was SVN r14406.
same "restrict" check as the top-level OMPI configure.ac script so
that it will guarantee to always get the same result. Therefore, the
#define for restrict will always have the same value in both
opal_config.h and romioconf.h, and we get 7 less warnings (6 in the IO
ROMIO component, 1 in ROMIO itself) when compiling with icc on Linux
(because PAC_C_RESTRICT and AC_C_RESTRICT would get different values
for the "restrict" #define in this case).
This commit was SVN r14387.
Fix for memory corruption in the restarted process stack. This stemed from
the brute force method we were previously using. This commit fixes this by
using a lighter weight solution focused in the r2 BML instead of above the PML.
This is a more efficient and flexible solution, and it solves the original
problem.
In the process I pulled out the ft_event function in the tcp BTL and r2 BML
into a set of *_ft.[c|h] files just to keep any updates to these code paths
as isolated as possible to make merging easier on everyone.
This commit was SVN r14371.
The following SVN revision numbers were found above:
r2 --> open-mpi/ompi@58fdc18855
The following Trac tickets were found above:
Ticket 977 --> https://svn.open-mpi.org/trac/ompi/ticket/977
Per discussions with Brian and Ralph, make a slight correction in
where components are installed. Use $pkglibdir, not $libdir/openmpi,
so that when compiled in the orte trunk, components are installed to
the right directory (because the component search patch is checking
$pkglibdir).
This commit was SVN r14345.
The following SVN revisions from the original message are invalid or
inconsistent and therefore were not cross-referenced:
r14289
the real interest is for small to middle size unexpected messages. The unexpected messages are copied
by the PML in it's own unexpected buffers. Therefore, there is no reason to make a first copy in the
TCP BTL. The BTL can handle to the PML it's own buffer, and can be sure that once the callback
completed it can reuse the buffer, no matter what happened with the fragment.
This commit was SVN r14320.
time difference...
1) The PML makes an assumption on local/remote completion semantics of the BTL
which Self BTL does not obey, nor should it, so we fix the PML
2) The Get protocol must handle the case when sender and reciever do not agree
on wheter the data is contiguous
This commit was SVN r14313.
Sorry for configure changes during the day; I totally forgot about
that. :-(
This commit was SVN r14288.
The following SVN revision numbers were found above:
r14286 --> open-mpi/ompi@0083eba18e
The top-level OMPI configure script already checks for "restrict" and
will issue a #define for it. PAC_C_RESTRICT would also check for
restrict, but sometimes come up with a different answer than the
top-level OMPI configure script, thereby resulting in conflicting
#define's for "restrict" (e.g., icc 9.0/9.1 on linux x86-64).
So it's easiest just to remove this test from ROMIO's configure.in
script.
This commit was SVN r14286.
Remove a redundant statement in the r2 BML.
This commit was SVN r14228.
The following SVN revision numbers were found above:
r2 --> open-mpi/ompi@58fdc18855
- Remove an old comment from crcp_base_fns.c
- Let ob1 have its very own ft_event function (which I'll fill in shortly)
- Make sure ob1 finalizes the bsend stuff so we don't leave a bunch of memory sitting around
- PML base - destruct the array upon finalize. Shrink the include search so it stops after finding a match
This commit was SVN r14222.
creating ompi_mpi_comm_null, since the destructor of ompi_mpi_comm_null will
decrease the reference counter of ompi_mpi_group_null twice according to the
last fix of Mohamad.
Added also a lengthy comment in ompi_comm_finalize about why we do
not decrease the reference counters for ompi_mpi_comm_null,
ompi_mpi_group_null etc. for the parent
communicator, although we do increase it in ompi_comm_init
This commit was SVN r14210.
when the size of the data is zero. Now they are not updated, which leave
us with the correct memory layout in all situations (so far). Update all
the comments to reflect exactly the supported behavior of the DDT engine.
This commit was SVN r14202.
computation of the current location on the pack/unpack process. This can
be used both for retrieving the pointer to the first byte (in the special
case of the cached RDMA protocol) and for getting the current
position (for the pipelined protocol).
I modified all BTLs, but most of them are still untested.
This commit was SVN r14180.
some time ago (last summer) that included checking for M_TRIM_THRESHOLD and
M_MMAP_MAX, unfortunately we didn't include <malloc.h> which is where these
are define, so disabling sbrk for the registration cache has been busted for
some time.
This commit was SVN r14169.
mca_mpool_base_page_size_log. They are exported by the mpool/base/base.h,
if some other code need them, then it should include this file
instead of having it's own redefinition of these externals.
This commit was SVN r14156.
Back out r14073 - it speeds up TCP latency / bandwidth but at the same time
it kills ROMIO and one-sided performance when using only TCP. The problem
is that it only allows those two to be progressed every couple of seconds,
leading to what looks like hangs in the one-sided tests (and the ROMIO stuff,
although people seem to not notice that at this point).
This commit was SVN r14144.
The following SVN revision numbers were found above:
r14073 --> open-mpi/ompi@64fbbc20b8
r14142 --> open-mpi/ompi@241545a098
it kills ROMIO and one-sided performance when using only TCP. The problem
is that it only allows those two to be progressed every couple of seconds,
leading to what looks like hangs in the one-sided tests (and the ROMIO stuff,
although people seem to not notice that at this point).
This commit was SVN r14142.
The following SVN revision numbers were found above:
r14073 --> open-mpi/ompi@64fbbc20b8
