This commit updates the entire codebase to use specific opal types for
all atomic variables. This is a change from the prior atomic support
which required the use of the volatile keyword. This is the first step
towards implementing support for C11 atomics as that interface
requires the use of types declared with the _Atomic keyword.
Signed-off-by: Nathan Hjelm <hjelmn@lanl.gov>
This commit renames the arithmetic atomic operations in opal to
indicate that they return the new value not the old value. This naming
differentiates these routines from new functions that return the old
value.
Signed-off-by: Nathan Hjelm <hjelmn@lanl.gov>
Based on some on-list and IM discussion with @hjelmn about
open-mpi/ompi@40b7643119, change the testing to a switch/case. If we
fall into the default case, assert() error (because it's an OMPI
developer programming error).
While testing one-sided on LANL systems I found a couple more OSC
bugs that were not caught during the initial testing:
- In the passive target code we read the read lock count as a
char instead of the intended uint32_t. This causes lock to
lockup when using shared locks after 127 iterations.
- The post code used the wrong group when trying to increment post
counters. This causes a segmentation fault.
- Both the post and wait code used the wrong check in the inner
loop leading to an infinite loop.
cmr=v1.8.1:reviewer=jsquyres
This commit was SVN r31354.
Dave Goodell correctly pointed out that it is unusual to return MPI
error classes from internal ompi functions. Correct this in the RMA
case by adding an internal error code to match MPI_ERR_RMA_SYNC.
This does change OMPI_ERR_MAX. I don't think this will cause any
problems with ABI.
cmr=v1.7.5:reviewer=jsquyres
This commit was SVN r31012.
- Fix several typos is osc/rdma.
- Fix a locking issue in osc/sm that was caused by an incorrect
assumption about the semantics of opal_atomic_add_32.
- Always unlock the accumulation lock in osc/sm.
- The base of a processes shared memory window should be NULL if
the size is zero. Fixed.
cmr=v1.7.5:ticket=trac:4304
This commit was SVN r30853.
The following Trac tickets were found above:
Ticket 4304 --> https://svn.open-mpi.org/trac/ompi/ticket/4304
