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Subject: Re: [OMPI users] equivalent to mpichgm --gm-recv blocking?
From: Patrick Geoffray (patrick_at_[hidden])
Date: 2008-03-18 17:28:26

Hi Greg,

Siekas, Greg wrote:
> Is it possible to get the same blocking behavior with openmpi? I'm
> having a difficult time getting this to work properly. The application
> is spinning on sched_yield which takes up a cpu core.

Per its design, OpenMPI cannot block. sched_yield is all it can do to
improve fairness.