• 5.1 Update 3
  • 05/05/2020
  • Public Content

Numbers of Ranks per Host

Use the
-pr <n:m>
option to set the number of ranks per host:
> mpitune ... -pr 1:16
Similarly, the
mpitune
utility affects the ranks in the rage between
4
and
16
whose numbers are powers of
2
. For the example above, it creates tuned settings for all cases where the number of ranks is
1
,
2
,
4
,
8
,
16
.
If the lower and the upper bounds are the same, the
mpitune
utility tunes for the
ppn=24
case only:
> mpitune ... -pr 24:24
 

Product and Performance Information

1

Performance varies by use, configuration and other factors. Learn more at www.Intel.com/PerformanceIndex.