Interpret Intel Trace Analyzer and Collector Result Data
Among all of the Intel® Trace Analyzer charts, in the case of the
application, the most informative is the Message Profile. This chart indicates the intensity of point-to-point communications for each sender-receiver pair.
To open the Message Profile chart, go to
application, the chart should look similar to this:
or press Ctrl + Alt + M. For the
In this chart, the vertical processes bar represents the sender ranks, and the horizontal bar represents the receiver ranks. As you can see from the chart, each rank communicates with the others, and rank 0 receives slightly more messages that the others.
Such a picture is typical for a communication pattern where one of the processes (in this case, with number 0) is a so-called "master" process that distributes the workload between others and gathers the results of calculations.