Automatic Profiling of MPI Applications with Hardware Performance Counters

  title={Automatic Profiling of MPI Applications with Hardware Performance Counters},
  author={Rolf Rabenseifner},
This paper presents an automatic counter instrumentation and pro ling module added to the MPI library on Cray T3E and SGI Origin2000 systems. A detailed summary of the hardware performance counters and the MPI calls of any MPI production program is gathered during execution and written in MPI Finalize on a special syslog le. The user can get the same information in a di erent le. Statistical summaries are computed weekly and monthly. The paper describes experiences with this library on the Cray… CONTINUE READING
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