Intel® MPI Library Reference Manual for Linux* OS
This topic describes how to use fast application tuning to find optimal settings for the Intel® MPI Library.
--fast [<value>] or –f [<value>]
or
<value> |
Binary indicator |
enable | yes | on | 1 |
Enable the fast application tuning. This value is only applicable for the application tuning mode |
disable | no | off | 0 |
Disable the fast application tuning. This is the default value |
If you set I_MPI_TUNE_FAST to enable, the mpitune utility executes alternate fast application tuning procedure. The fast application tuning uses the same resulting configuration file used in previous tuning.
$ mpitune --application \“mpirun …\” --fast
$ export I_MPI_TUNE_FAST=enable
$ mpitune --application \“mpirun …\”
If you use the --help option and the --fast option together, the help message of app_tune is printed.