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Workshop on Non-Traditional Programming Models for High-Performance Computing


Organizing Committee
Allen McPherson, chair, Los Alamos National Laboratory
Patrick Hanrahan, Stanford University
Fred Johnson, SAIC
Patrick McCormick, Los Alamos National Laboratory

Computing hardware has been advancing at a remarkable rate. Multi-core chips and computational accelerators, such as GPUs, have enabled the construction of machines with massive amounts of computational power. Peta-scale supercomputers have been delivered and installed and exa-scale machines are on the drawing boards.

Unfortunately, software tools for programming this hardware have not advanced at equivalent rates. These large-scale computers are still largely programmed using tools, languages, and techniques that are decades old. This workshop is being held to address the question: Can we apply non-traditional programming techniques, perhaps from other application domains, to improve the productivity, portability and performance of software for large-scale scientific computing? Examples of non-traditional techniques may include (but are not limited to) array-based languages, "cloud" computing, functional languages, or domain specific languages.

The goals of the workshop are two-fold:

1) To begin to identify, specify and capture in writing, the problematic issues and barriers inherent in today's scientific software construction process.

2) To expose attendees to non-traditional programming models with the express purpose of igniting thought and discussion on the future of large-scale scientific programming.

The one-day workshop will consist of two sequential sessions, each lead by a moderator/facilitator. The sessions will include a small number of speakers who will each present a short position paper outlining their thoughts on current problems and how specific non- traditional techniques may be applied to address these issues. The morning session will address issues related to transitioning existing codes to new architectures while the afternoon session will cover approaches for new codes and issues related to exa-scale computing. Following the presentations, the moderator will lead a discussion with the audience on the ideas presented by the speakers. Both the position papers and the captured discussion will be published on the workshop web site. It is our hope that the output of this workshop, perhaps refined, can act as input to a future meeting or workshop on this topic.

Time

Title

Speaker

7:30-8:30

Breakfast

 

8:30-10:00

 

 

8:30

Workshop Welcome

Allen McPherson, LANL

8:35

Topic Introduction

Fred Johnson, SAIC

8:45

In-Depth Talk

Bill Harrod, DARPA

9:15

Five Powerful Chapel Idioms
paper (pdf)
slides (pdf)

Steve Deitz, CRAY

9:35

A New Vision for Coarray Fortran
paper (pdf)
slides (pdf)

John Mellor-Crummy, Rice

10:00-10:30

Coffee Break

 

10:30-12:00

 

 

10:30

Towards an Abstraction-Friendly Programming
Model for High Productivity and High
Performance Computing
paper (pdf)
slides (pdf)

Chunhua Liao, LLNL

10:50

Are Domain-Specific Languages Going Mainstream?
paper (pdf)
slides (pdf)

Anwar Ghuloum, Intel

11:10

discussion & summary/collection

 

12:00-1:30

Lunch

 

1:30-3:00

 

 

1:30

Topic Introduction

Allen McPherson/Patrick
McCormick, Los Alamos

1:45

In-Depth Talk
slides (pdf)

Arthur Whitney, Kx Systems

2:15

The Manticore Approach to Parallelism
slides (pdf)

John Reppy, University of
Chicago

2:35

Domain Specific Languages for Domain Specific Problems
paper (pdf)
slides (pdf)

Don Stewart, Galois &
University of New South Wales

3:00-3:30

Coffee Break

 

3:30-5:00

 

 

3:30

Sequoia and Redwood: Answering hardware’s 6 challenges with an abstract yet hardware-aware models based on LPH
paper (pdf)
slides (pdf)

Mattan Erez, University
of Texas, Austin

3:50

TBD

Pat Hanrahan, Stanford

4:10

discussion, summary/collection, wrapup/future plans

 


The output of the workshop will include:

1) Speaker position papers.

2) Synopsis of discussions amongst presenters and audience.

3) Summary of main issues and recommendations for future meeting or workshop.

Please join us in beautiful Santa Fe to attend what we believe will be a stimulating and productive workshop. You may register at the LACSS site: http://www.lanl.gov/conferences/lacss/2009/ or contact the committee at: nontrad2009@lanl.gov.


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