IntelĀ® MPI Library Reference Manual for Linux* OS
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:
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\"
Use the optimal recorded values for your cluster
$ mpirun -tune -n 32 ./myprog