I didn't get to test 2.0.1rc1 with xlc-12.1 until just now because I need a CRYPTOCard for access (== not fully automated like my other tests).
It appears that the problem I reported in 2.0.0rc2 and thought to be as fixed by pr1140 <https://github.com/open-mpi/ompi-release/pull/1140> was never /fully/ fixed. The commit in that PR includes only ONE of the TWO patch hunks in my original email (URL in the PR's initial comment). So, opal_atomic_ll_32() was fixed but opal_atomic_ll_64() was not. The same half-fixed state exists on master as well, but is masked by the default use of "__sync builtin atomics". -Paul -- Paul H. Hargrove phhargr...@lbl.gov Computer Languages & Systems Software (CLaSS) Group Computer Science Department Tel: +1-510-495-2352 Lawrence Berkeley National Laboratory Fax: +1-510-486-6900
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