Is it possible with perf to collect hardware counter statistics for only part of a program's execution? If so, how? likwid offers the feature of being able to define named regions, but it would be...

I want to accurately pin my MPI processes to a list of (physical) cores. I refer to the following points of the mpirun --help output: -cpu-set|--cpu-set <arg0> Comma-separated list of rang...