[OMPI users] users Digest, Vol 4091, Issue 1

[Palmer, Bruce J]

I'm using an infiniband interconnect. Am I guaranteed asynchronous progress without doing anything else? For example, to get asynchronous progress with Intel MPI, you need to set the environment variable I_MPI_ASYN_PROGRESS.

Bruce

-----Original Message-----
From: users [mailto:users-***@lists.open-mpi.org] On Behalf Of users-***@lists.open-mpi.org
Sent: Tuesday, August 07, 2018 11:00 AM
To: ***@lists.open-mpi.org
Subject: users Digest, Vol 4091, Issue 1

Send users mailing list submissions to
***@lists.open-mpi.org

To subscribe or unsubscribe via the World Wide Web, visit
https://lists.open-mpi.org/mailman/listinfo/users
or, via email, send a message with subject or body 'help' to
users-***@lists.open-mpi.org

You can reach the person managing the list at
users-***@lists.open-mpi.org

When replying, please edit your Subject line so it is more specific
than "Re: Contents of users digest..."


Today's Topics:

1. Re: Asynchronous progress in 3.1 (Nathan Hjelm)


----------------------------------------------------------------------

Message: 1
Date: Mon, 06 Aug 2018 18:28:53 +0000 (GMT)
From: Nathan Hjelm <***@me.com>
To: Open MPI Users <***@lists.open-mpi.org>
Subject: Re: [OMPI users] Asynchronous progress in 3.1
Message-ID: <10785bbd-846f-48f2-a773-***@me.com>
Content-Type: text/plain; charset="utf-8"; Format="flowed"

It depends on the interconnect you are using. Some transports have async progress support but others do not.

-Nathan

On Aug 06, 2018, at 11:29 AM, "Palmer, Bruce J" <***@pnnl.gov> wrote:

Hi,

?

Is there anything that can be done to boost asynchronous progress for MPI RMA operations in OpenMPI 3.1? I?m trying to use the MPI RMA runtime in Global Arrays and it looks like the performance is pretty bad for some of our tests. I?ve seen similar results in other MPI implementations (e.g. Intel MPI) and it could be fixed by setting some environment variables to boost asynchronous progress. Is there something similar for Open MPI or can you use something like Casper?

?

Bruce

_______________________________________________
users mailing list
***@lists.open-mpi.org
https://lists.open-mpi.org/mailman/listinfo/users
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://lists.open-mpi.org/mailman/private/users/attachments/20180806/c5c29ca5/attachment.html>

------------------------------

Subject: Digest Footer

_______________________________________________
users mailing list
***@lists.open-mpi.org
https://lists.open-mpi.org/mailman/listinfo/users

------------------------------

End of users Digest, Vol 4091, Issue 1
**************************************