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Subject: Re: [OMPI users] possible bug exercised by mpi4py
From: Lisandro Dalcin (dalcinl_at_[hidden])
Date: 2012-05-24 11:10:41


On 24 May 2012 10:28, Jeff Squyres <jsquyres_at_[hidden]> wrote:
> On May 24, 2012, at 6:53 AM, Jonathan Dursi wrote:
>
>> It seems like this might also be an issue for gatherv and reduce_scatter as well.
>
>
> Gah.  I spot-checked a few of these before my first commit, but didn't see these.
>
> So I checked them all, and I found SCATTERV, GATHERV, and REDUCE_SCATTER all had the issue.  Now fixed on the trunk, and will be in 1.6.1.
>

Please be careful with REDUCE_SCATTER[_BLOCK] . My understanding of
the MPI standard is that the the length of the recvcounts array is the
local group size
(http://www.mpi-forum.org/docs/mpi22-report/node113.htm#Node113)

-- 
Lisandro Dalcin
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