IntelĀ® MPI Library Reference Manual for Linux* OS
The statistics in each supported format can be collected separately. To collect statistics in all formats with the maximal level of details, use the I_MPI_STATS environment variable.
I_MPI_STATS
I_MPI_STATS=all
The I_MPI_STATS_SCOPE environment variable is not applicable when both types of statistics are collected.
To control the amount of statistics information, use the ordinary I_MPI_STATS values, separated by comma.
I_MPI_STATS=[native:][n-]m,ipm[:terse]
Currently the alias all corresponds to I_MPI_STATS=native:20,ipm and can be changed.