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|The Extrae library allows MPI communication events of a parallel program to be recorded as a trace file. Additionally, certain program-specific events can also be included. To record MPI communication events, simply run the program with the Extrae library preloaded.||
First load the needed software module:
Then create a configuration file for the extrae run. Commented templates can be found under $EXTRAE_HOME/share/example.
Now set up the environment for the run.
Finally run your application as usual. This will generate the needed tracefiles.
Viewing traces with Paraver
To create a tracefile which is viewable with Paraver we have to convert the generated traces to a prv file