[4.1.x] orte/orted: enable OPAL's mutli-thread support #8362
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This patch added call to opal_set_using_threads() in orted/main.c,
which is to enable OPAL's multi-thread support.
This is because orted used multiple threads.
Without OPAL's multi-thread support, OPAL_RELEASE will not use
atomic operations to update an object's reference count, which
will lead to double free.
This patch is applied to 4.1.x directly because orte has been
removed from the master branch.
Signed-off-by: Wei Zhang wzam@amazon.com