Use acquire/release barrier to synchronize completion of request and test/wait #11665
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…test/wait Before completing the request we should make sure that all other pieces are visible, the status. The release barrier should synchronize with an acquire barrier before reading the status in test/wait. This also removes a full memory barrier at the beginning of test functions that does not seem to serve any purpose. Signed-off-by: Joseph Schuchart <[email protected]>
bosilca
approved these changes
May 10, 2023
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Before completing the request we should make sure that all other pieces are visible, i.e., the status. The release barrier should synchronize with an acquire barrier before reading the status in test/wait to ensure that status is current.
This also removes a full memory barrier at the beginning of test functions that does not seem to serve any purpose.
Thanks to @joerowell for the report.
Fixes #11652