• 9.1
  • 07/08/2015
  • Public Content

Remove Serialization


You can improve the performance of the
poisson
sample program by replacing the serial
MPI_Sendrecv
with non-blocking communication:
MPI_Isend
and
MPI_Irecv
.
Once corrected, the single iteration of the revised program will look similar to:
Since
poisson_sendrecv.single.stf
is a striking example of serialization, almost all of the Intel® Trace Analyzer charts show this interesting pattern. But in the real-world cases, it may be necessary to formulate a hypothesis regarding how the program should behave and to check this hypothesis using the most suitable chart.
Key Terms

Product and Performance Information

1

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Notice revision #20110804