[mpich-discuss] profiling (gprof) MPICH2 manager program

[William Pearson]

I am interested in looking for bottlenecks to an MPICH2 program that prevent efficient scaling after 10 - 16 worker programs.

I was hoping to use gprof to do this, but the gmon.out file that I get is overwhelmed by the worker program times -- I'm not seeing the relevant timings for the manager program (which sends data and collects results).

How can I tell gprof to focus only on the first instance of the program that is running as the manager?

Bill Pearson