From owner-hpff-distribute Thu Jun 6 05:01:06 1996 Received: (from daemon@localhost) by cs.rice.edu (8.7.1/8.7.1) id FAA09504 for hpff-distribute-out; Thu, 6 Jun 1996 05:01:06 -0500 (CDT) Received: from fontainebleau (root@fontainebleau.ensmp.fr [192.54.148.100]) by cs.rice.edu (8.7.1/8.7.1) with SMTP id FAA09498 for ; Thu, 6 Jun 1996 05:01:00 -0500 (CDT) Received: from cri.ensmp.fr (chailly.ensmp.fr) by fontainebleau with SMTP id AA22170 (5.67a8/IDA-1.5 for ); Thu, 6 Jun 1996 12:00:57 +0200 Received: from provins.caii by cri.ensmp.fr (4.1/SMI-4.0) id AA19299; Thu, 6 Jun 96 12:00:56 +0200 Date: Thu, 6 Jun 96 12:00:56 +0200 Message-Id: <9606061000.AA19299@cri.ensmp.fr> Received: by provins.caii (4.1/SMI-4.1) id AA17558; Thu, 6 Jun 96 12:00:52 +0200 From: Fabien COELHO To: hpff-distribute@cs.rice.edu Subject: hpff-distribute: reports about HPF compilation Cc: coelho@chailly.ensmp.fr Sender: owner-hpff-distribute Precedence: bulk --------------------------------------------------------------------------- hpff-distribute@cs.rice.edu is a mailing list for discussion of data distribution in High Performance Fortran. Instructions for adding or deleting yourself from this list appear at the bottom of this message. --------------------------------------------------------------------------- Hello, The following reports may be of interest to the community. They are accessible from http://www.cri.ensmp.fr/~coelho/bibliography.html The first one is a course about HPF compilation. The second one is about HPF remappings and DF optimizations. %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% A-286 ( abstract / ps.gz ) State of the Art in Compiling HPF Fabien Coelho, Cécile Germain, Jean-Louis Pazat. June 1996. PRS Spring School, Les Menuires, France, March 1996. To appear in Springer-Verlag LNCS Series. 31 pages, 43 references. ABSTRACT Proposing to the user a nice programming model based on the data-parallel paradigm is one thing. Running the resulting applications very fast is the next issue for a language aiming at high performance on massively parallel machines. This paper discusses the issues involved in HPF compilation and presents optimization techniques, targeting the message-passing SPMD programming model of distributed memory MIMD architectures. %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% A-292 ( abstract / ps.gz ) Compiling Dynamic Mappings with Array Copies Fabien Coelho. May 1996. 20 pages, 12 references. ABSTRACT Array remappings are useful to many applications on distributed memory parallel machines. They are integrated into High Performance Fortran, a Fortran~90-based data-parallel language. This paper describes techniques for handling dynamic mappings through simple array copies: array remappings are translated into copies between statically mapped distinct versions of the array. It discusses restrictions of the language required to do so. The remapping graph which captures all remapping and liveness information is presented, as well as additional data-flow optimizations that can be performed on this graph, so as to avoid useless remappings at runtime. Such useless remappings appear for arrays that are not used after a remapping. Array copies the values of which are live are also kept to avoid other flow-dependent useless remappings. Finally the code generation and runtime management issues needed by our scheme are discussed. These techniques are implemented in our prototype HPF compiler. %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% regards, Fabien. -- Fabien COELHO __ http://www.cri.ensmp.fr/~coelho __ coelho@cri.ensmp.fr CRI-ENSMP, 35, rue Saint-Honoré, F-77305 Fontainebleau cedex, France phone: 33 1 64 69 {voice: 48 52, fax: 47 09, standard: 47 08} ________ All opinions expressed here are mine _________ --------------------------------------------------------------------------- To (un)subscribe to this list, send mail to hpff-distribute-request@cs.rice.edu. Leave the subject line blank, and in the body put the line (un)subscribe ---------------------------------------------------------------------------