What: Remove the opal_progress_recursion_depth_counter from opal_progress. Why: This counter adds two atomic adds to the critical path when OPAL_HAVE_THREADS is set (which is the case for most builds). I grepped through ompi, orte, and opal to find where this value was being used and did not find anything either inside or outside opal_progress.
When: I want this change to go into 1.7.4 (if possible) so setting a quick timeout for next Tuesday. Let me know if there is a good reason to keep this counter and it will be spared. -Nathan Hjelm HPC-5, LANL
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