[mpich-discuss] Is KNEM used for 1-sided comm?

[Velickovic Nikola]

Hello,

I am using MPICH 3.0.4 with asynchronous progress enabled along with KNEM module on my system.
I have a DMA unit available and it is properly used by KNEM.
When I try a benchmark using non-blocking comm. there is computation-communication overlap, but when I try the same using 1-sided communication there is no overlap.
It seems like MPICH is not using KNEM for 1-sided comm.

Do you have any idea why this might be?

Best,
Nikola