Gabriele,
Can you clarify... those timings are what is reported for the reduction
call specifically, not the total execution time?
If so, then the difference is, to a first approximation, the time you
spend sitting idly by doing absolutely nothing waiting at the barrier.
Ciao
Terry
--
Dr. Terry Frankcombe
Research School of Chemistry, Australian National University
Ph: (+61) 0417 163 509 Skype: terry.frankcombe
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