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Subject: Re: Regarding ballot on TR 29113
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From: Jeff Squyres <jsquyres@cisco.com>
In-Reply-To: <997D2892-BDC6-415D-B968-7DDB0E704EA2@lanl.gov>
Date: Tue, 19 Apr 2011 20:06:36 -0400
Cc: "John.Reid@stfc.ac.uk" <John.Reid@stfc.ac.uk>,
	fortran standards email list for J3 <j3@j3-fortran.org>,
	WG5 <sc22wg5@open-std.org>, Rolf Rabenseifner <rabenseifner@hlrs.de>,
	Tobias Burnus <burnus@net-b.de>,
	Reinhold Bader <reinhold.bader@lrz.de>
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References: <4D3F4F26.7050902@cray.com> <4D403621.4060500@stfc.ac.uk> <997D2892-BDC6-415D-B968-7DDB0E704EA2@lanl.gov>
To: "Rasmussen, Craig E" <rasmussn@lanl.gov>
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On Apr 19, 2011, at 7:49 PM, Rasmussen, Craig E wrote:

> I'm withdrawing my objection to the publication of TR 29113.  Based on =
extensive conversations with members of the MPI Forum (in particular =
Rolf Rabenseifner), we no longer believe that non-blocking communication =
using Fortran can be done in a way that allows communication and =
computation to occur using the same array.  Rolf will add language to =
the MPI-3 standard suggesting to users that they use separate buffers =
(usually requiring extra copying costs) if they want to do this in codes =
written in Fortran.

...which is a MAJOR bummer.

--=20
Jeff Squyres
jsquyres@cisco.com
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