On Jun 3, 2009, at 6:05 AM, tsi...@coas.oregonstate.edu wrote:
Top always shows all the paralell processes at 100% in the %CPU field, although some of the time these must be waiting for a communication to complete. How can I see actual processing as opposed to waiting at a barrier?Thanks, Tiago
Using what interconnect?For performance reasons (lower latency), the app and/or OMPI may be polling on the completion. Are you using blocking or non-blocking communication?
Scott
