MPIR-1.0 specifies that the following symbols are only relevant in the
starter process:
- MPIR_Breakpoint
- MPIR_being_debugged
- MPIR_debug_state
- MPIR_debug_abort_string
I.e., the code filling in values in these various symbols was useless
/ never used.
MPIR-1.1 will define that MPIR_being_debugged *is* relevant in MPI
processes. That symbol is currently defined in libopen-rte (which is
currently causing a duplicate symbol error for static builds -- this
commit fixes that error), and is therefore still available for MPI
processes.
Signed-off-by: Jeff Squyres <jsquyres@cisco.com>
MPI-3.1 says that even if no info keys are set on the file, we need to
return a new, empty info.
Thanks to Lisandro Dalcin for identifying the issue.
Fixesopen-mpi/ompi#1630
Signed-off-by: Jeff Squyres <jsquyres@cisco.com>
tear down
HCOLL barrier may not complete if HCOLL progress is not called periodically.
which is the case in HCOLL teardown progress in the finalize.
(cherry picked from commit 793244d75dd94d1d5e0243bcccf6d04318750f3f)
This commit fixes a bad synchronization detection bug that occurs when
mixing MPI_Win_fence() and MPI_Win_lock(). If no communication has
occurred in the fence epoch it is safe to just clear the all_sync
object (it was set up by fence).
Signed-off-by: Nathan Hjelm <hjelmn@lanl.gov>
When building an empty datatype (aka. size = 0) because the count of
included datatypes is 0, be less strict on what the arguments are
(allow NULL pointers).
This commit fixes a bug that occurs when ranks are either not mapped
evenly or by something other than core.
Fixesopen-mpi/ompi#1599
Signed-off-by: Nathan Hjelm <hjelmn@lanl.gov>
This commit fixes a bug when sparse groups are in use. Since sparse
group do not actually increment the reference counts of any procs
(they just retain the parent group) it is wrong to decrement the
reference counts of all procs in the group using
ompi_group_decrement_proc_count(). This commit makes the call to
ompi_group_decrement_proc_count() conditional on the group being
dense.
Fixesopen-mpi/ompi#1593
Signed-off-by: Nathan Hjelm <hjelmn@lanl.gov>
If during the request completion callback we post another request that
completes right away (such a small send or a match for an unexpected
short message) we will try to complete the second request while holding
the lock for the completion of the first. For performance reasons
(mainly to avoid unlocking and locking the request mutex several times)
we have made the request lock recursive.
There is a potential race condition in MPI_Init() where an orte even
thread could be in a function that uses OPAL_THREAD_LOCK /
OPAL_THREAD_UNLOCK when ompi_mpi_init calls opal_set_using_threads().
Closesopen-mpi/ompi#1586
Signed-off-by: Nathan Hjelm <hjelmn@lanl.gov>
This is a follow-on to open-mpi/ompi@7373111: add some comments
explaining why the code is the way it is. Also update a previous
comment.
Signed-off-by: Jeff Squyres <jsquyres@cisco.com>
MPI_LONG_LONG_INT is a named predefined datatype, so its name is now MPI_LONG_LONG_INT
MPI_LONG_LONG is a synonym of MPI_LONG_LONG_INT, and its name is also MPI_LONG_LONG_INT
Fix CID 72362: Explicit null dereferenced (FORWARD_NULL)
From what I can tell the code @ fcoll_static_file_read_all.c:649
should be setting bytes_per_process[i] to 0 not bytes_per_process.
Fix CID 72361: Explicit null dereferenced (FORWARD_NULL)
Modified check to check for blocklen_per_process non-NULL before
trying to free blocklen_per_process[l]. This is sufficient because
free (NULL) is safe. Also cleaned up the initialization of this an a
couple other arrays. They were allocated with malloc() then
initialized to 0. Changed to used calloc().
Signed-off-by: Nathan Hjelm <hjelmn@lanl.gov>
Fix CID 72296: Resource leak (RESOURCE_LEAK):
Changed code to goto exit instead of returning to ensure memory is
freed.
Fix CID 712589: Out-of-bounds read (OVERRUN):
In this loop i and j are identical and always less than
iov_count. The CID was triggered because i was incremented if i was <
iov_count. This meant that if the loop did go on the next iteration
would access an invalid index.
Fix CID 741363: Uninitialized scalar variable (UNINIT):
Allocate tmp_len with calloc to insure every index is initialized.
Fix CID 741364: Uninitialized pointer read (UNINIT):
Allocate recv_types with calloc to ensure all indices are always
initialized. Also added a check to not loop and destroy if recv_types
is NULL.
Also added a NULL check on the allocation of decoded iov. This is not
the cause of CID 126784 but should be fixed.
Fix CID 712588: Out-of-bounds read (OVERRUN):
Similar to CID 712589. Should silence the issue.
Signed-off-by: Nathan Hjelm <hjelmn@lanl.gov>
