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MPI-3 provide functions for non-blocking collectives. To help programmers introduce non-blocking collectives to existing MPI programs, we improve the PARCOACH tool for checking correctness of MPI call sequences. These en...
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Collective MPI communications have to be executed in the same order by all processes in their ommunicator and the same number of times, otherwise a deadlock occurs. As soon as the controlflow involving these collective o...