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Subject: Re: [OMPI users] ROMIO Podcast
From: Rayson Ho (raysonlogin_at_[hidden])
Date: 2012-02-21 17:30:20


On Tue, Feb 21, 2012 at 12:06 PM, Rob Latham <robl_at_[hidden]> wrote:
> ROMIO's testing and performance regression framework is honestly a
> shambles.  Part of that is a challenge with the MPI-IO interface
> itself.  For MPI messaging you exercise the API and you have pretty
> much covered everything.  MPI-IO, though, introduces hints.  These
> hints are great for tuning but make the testing "surface area" a lot
> larger.  We are probably going to have a chance to improve things
> greatly with some recently funded proposals.

Thanks for the replies Rob.

I am interested in testing mainly because not a lot of projects have
spare clusters lying around for performance regression testing. But
then these days we can get machines from EC2 easily & relatively
cheaply, so I was wondering if other projects are migrating their test
infrastructure to EC2.

Rayson

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>
> ==rob
>
> --
> Rob Latham
> Mathematics and Computer Science Division
> Argonne National Lab, IL USA
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