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Subject: Re: [OMPI users] [Open MPI] #3351: JAVA scatter error
From: Jeff Squyres (jsquyres_at_[hidden])
Date: 2012-12-17 17:14:46

On Dec 15, 2012, at 10:46 AM, Siegmar Gross wrote:

> "Broadcast" works if I have only a root process and it fails when I have
> one more process.

I'm sorry; I didn't clarify this error.

In a broadcast of only 1 process, it's effectively a no-op. So it doesn't need to do anything to the buffer. Hence, it succeeds.

But when you include >1 process, then it needs to do something to the buffer, so the same casting issue arises.

Jeff Squyres
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