[mpich-discuss] mpich3 error with ch3

Alim Akhtar alim.akhtar at gmail.com
Wed May 26 22:50:18 CDT 2021

Hi mpich dev team,

I am facing one issue similar to discussed in below discussion


Someone in the mailing list suggested recompiling the mpi bench using
CH4. as below:


"MPICH with ch4, with `--with-device=ch4:ofi`"

Actually this fixes the failure on this CPU architecture.

1. Is this a known issue with MPI bench on the recent CPU
architecture? (I am running on ARM's Cortex -A 75), like ch3 is
2. With no error after using CH4, does this mean the CPU is all good?

Note: using ch3 was working fine on our previous CPU (A-72)

Any input will be really appreciated.


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