From owner-sc22wg5@open-std.org  Thu Jan 22 00:38:27 2009
Return-Path: <owner-sc22wg5@open-std.org>
X-Original-To: sc22wg5-dom7
Delivered-To: sc22wg5-dom7@www2.open-std.org
Received: by www2.open-std.org (Postfix, from userid 521)
	id 9F9F0CA3439; Thu, 22 Jan 2009 00:38:27 +0100 (CET)
X-Original-To: sc22wg5@open-std.org
Delivered-To: sc22wg5@open-std.org
Received: from ppsw-5.csi.cam.ac.uk (ppsw-5.csi.cam.ac.uk [131.111.8.135])
	by www2.open-std.org (Postfix) with ESMTP id EBF06CA3434
	for <sc22wg5@open-std.org>; Thu, 22 Jan 2009 00:38:26 +0100 (CET)
X-Cam-AntiVirus: no malware found
X-Cam-SpamDetails: not scanned
X-Cam-ScannerInfo: http://www.cam.ac.uk/cs/email/scanner/
Received: from hermes-2.csi.cam.ac.uk ([131.111.8.54]:40679)
	by ppsw-5.csi.cam.ac.uk (smtp.hermes.cam.ac.uk [131.111.8.155]:25)
	with esmtpa (EXTERNAL:nmm1) id 1LPmeQ-0002wS-GL (Exim 4.70)
	(return-path <nmm1@hermes.cam.ac.uk>); Wed, 21 Jan 2009 23:38:26 +0000
Received: from prayer by hermes-2.csi.cam.ac.uk (hermes.cam.ac.uk)
	with local (PRAYER:nmm1) id 1LPmeQ-0005nW-1i (Exim 4.67)
	(return-path <nmm1@hermes.cam.ac.uk>); Wed, 21 Jan 2009 23:38:26 +0000
Received: from [83.67.89.123] by webmail.hermes.cam.ac.uk
	with HTTP (Prayer-1.3.1); 21 Jan 2009 23:38:26 +0000
Date: 21 Jan 2009 23:38:26 +0000
From: "N.M. Maclaren" <nmm1@cam.ac.uk>
To: MPI-3 Fortran working group <mpi3-fortran@lists.mpi-forum.org>,
	WG5 <sc22wg5@open-std.org>
Subject: Re: [MPI3 Fortran] MPI non-blocking transfers
Message-ID: <Prayer.1.3.1.0901212338260.16909@hermes-2.csi.cam.ac.uk>
In-Reply-To: <4977A1E7.50407@cray.com>
References: <Prayer.1.3.1.0901211104060.5654@hermes-2.csi.cam.ac.uk>
 <49775A9D.3080102@cray.com>
 <200901211012.44002.donev1@llnl.gov>
 <49776DF7.1040900@cray.com>
 <Prayer.1.3.1.0901212117450.12120@hermes-2.csi.cam.ac.uk>
 <4977A1E7.50407@cray.com>
X-Mailer: Prayer v1.3.1
Mime-Version: 1.0
Content-Type: text/plain; format=flowed; charset=ISO-8859-1
Sender: owner-sc22wg5@open-std.org
Precedence: bulk

On Jan 21 2009, Bill Long wrote:
>
>More precisely, no proposals since you have joined the discussion.  
>There have been proposals in the past that would create a "real" Fortran 
>interface for MPI that was completely different from the C interface.  
>It would use assumed-shape dummies. (Solves the copy-in/copy-out 
>problem.)  With the associated descriptors, a large number of the 
>arguments to MPI routines could be dropped.  (Improves on the difficulty 
>of use problem and reduces coding mistakes.)

OK.  Yes, that's very different.  But it's completely orthogonal to the
non-blocking/ASYNCHRONOUS issue.


Regards,
Nick Maclaren,
University of Cambridge Computing Service,
New Museums Site, Pembroke Street, Cambridge CB2 3QH, England.
Email:  nmm1@cam.ac.uk
Tel.:  +44 1223 334761    Fax:  +44 1223 334679

