[mvapich-discuss] MVAPICH2 2.3b Blocking communication progress

[Subramoni, Hari]

Hi, Pau.

To the best of our knowledge, the Intel PSM2 interface does not support interrupt driven mode of progress. We need to poll all the time to check for progress. So we cannot implement the traditional “blocking” mode of progress for Intel Omni-Path HFIs.

We had some discussions with Intel folks about this in the past. I am not sure about the current status. I would recommend contacting Intel PSM2 developers for more information.

Thx,
Hari.

From: mvapich-discuss-bounces at cse.ohio-state.edu On Behalf Of Pau Farré
Sent: Friday, October 20, 2017 1:50 PM
To: mvapich-discuss at cse.ohio-state.edu <mvapich-discuss at mailman.cse.ohio-state.edu>
Subject: [mvapich-discuss] MVAPICH2 2.3b Blocking communication progress


Hi,

I amb interested in using MVAPICH 2.3b with the blocking communication progress mode and Intel Omnipath.

Is this actually supported? Since on the list of features says:

  *   Blocking (enables running multiple MPI processes/processor). Available for OpenFabrics (IB and iWARP) interfaces.

Thanks,

Pau Farre


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