Comments (3)
Ah I found the
npmin
option - butmap
seems a better option here. Any suggestions on how to use it for the above case?
Just leaving a note on -map usage. To understand better the idea behind -map and the way it can be used to measure the inter-node communications only, one may check out Examples in section "-map PxQ Option" from here: https://software.intel.com/content/www/us/en/develop/documentation/imb-user-guide/top/benchmark-methodology/command-line-control.html
Also -npmin is typically used all the time for every IMB run to eliminate these np=2,4,... executions.
from mpi-benchmarks.
Ah I found the npmin
option - but map
seems a better option here. Any suggestions on how to use it for the above case?
from mpi-benchmarks.
Hi @sjpb
You can find more information about map
option using:
IMB-MPI1 -help map
In your case i assume you need to use next option:
IMB-MPI uniband -map COUNT_RANKS_PER_NODExCOUNT_NODES
from mpi-benchmarks.
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