Replacing the Default Benchmark

This tuning feature is an extension of the cluster-specific tuning mode in which you specify a benchmarking application that is used for tuning.

The IntelĀ® MPI Benchmarks executable files, which are more optimized for Intel microprocessors than for non-Intel microprocessors, are used by default. This may result in different tuning settings on Intel microprocessors than on non-Intel microprocessors.

For example:

  1. Collect the configuration settings for the cluster hosts listed in the ./mpd.hosts file by using the desired benchmarking program

    $ mpitune --test \"benchmark -param1 -param2\"

  2. Use the optimal recorded values for your cluster

    $ mpirun -tune -n 32 ./myprog