HPC Garage

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Vuduc Research Lab at Georgia Tech.

PMAA'10 in Basel.

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Jee and Rich just returned from the Sixth International Workshop on Parallel Matrix Algorithms and Applications (PMAA 2010), which the University of Basel in Switzerland hosted this year. There were many interesting talks, including a keynote by colleague and collaborator, George Biros, sessions on GPUs and autotuning in matrix computations, as well as Jee's reprise of his PPoPP 2010 talk on sparse matrix-vector multiply on GPUs.

View of the Rhine river in Basel, Switzerland.

The University of Basel campus abuts the Rhine river. Rich wonders how students and faculty there still manage to get so much great work done.

 

HPCwire blurb.

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Our HotPar'10 paper has gotten a couple of views, including this nice write-up in HPCwire by editor Michael Feldman. It's nice to be noticed!

 HPCwire logo

 

APGCS'10 talk by Sooraj.

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Sooraj Bhat 

On Monday, May 31, Sooraj Bhat presented his work on mechanizing the derivation of statistical machine learning algorithms, which is joint work with Ashish AgarwalAlex Gray, and Rich, at the Workshop on Automated Program Generation for Computational Science (co-located with ICCS'10 in Amsterdam). This is a key first-step toward the automatic production of highly tuned parallel code for data analysis applications. [workshop-page | schedule]

 

Falcon @ ICSE'10.

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Today, Sangmin will present his work on Falcon, a tool to localize faults in concurrent software, at the International Conference on Software Engineering (ICSE), which is being held in Cape Town, South Africa. Here's a brief summary of the main ideas underlying Sangmin's work.

Read more...
 

NSF CAREER.

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It's official: Rich's NSF CAREER proposal on "Autotuning foundations for exascale systems" has been awarded. Thanks to everyone who provided commitments of support to the effort. I guess this means it's time to get to work? Wink
 

HotPar'10 paper accepted.

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Our paper describing our on-going work to study GPGPU acceleration for irregular scientific applications (sparse iterative solvers, sparse direct solvers, and the fast multipole method) has been accepted at HotPar'10.

  • R. Vuduc, A. Chandramowlishwaran, J. Choi, M. E. Guney, A. Shringarpure. "On the limits of GPU acceleration." In Proc. USENIX Workshop on Hot Topics in Parallelism (HotPar), Berkeley, CA, USA, June 2010. (to appear)
 

At PPoPP 2010.

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The HPC Garage is in Bangalore, India this week for the ACM SIGPLAN Annual Symposium on Principles and Practice of Parallel Programming (PPoPP). Jee and Amik present our paper on model-driven autotuning for GPUs today; and Aparna also presents a poster on our Concurrent Collections applications work.

HPC Garage at PPoPP 2010 in Bangalore, India.

 

HotPar'10 & the real HP Garage.

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Rich just got back from the USENIX Workshop on Hot Topics in Parallelism (HotPar), where he presented the lab's meta-analysis of the potential and limitations of GPU systems. Slides for the talk should soon appear on the HotPar'10 page if they are not there already.

The workshop itself was great fun! In particular, it had a uniquely lively atmosphere, with highly interactive talk sessions, a prominent and high-quality poster session, great lunch discussions, all at an amazing price! (To reduce cost, we stayed and "workshopped" on Berkeley's Clark Kerr facilities. Lodging + all meals + registration was only about $600 or so. Amazing!)

The Original HP Garage. 

As an added bonus, Rich accidentally missed his flight back to ATL and so took a minute to drop by the original Hewlett-Packard Garage, depicted above. It's a great reminder of the kind of impact the HPC Garage hopes to have some day.

 

 

Dagstuhl seminar.

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Nerds from the software engineering and the autotuning/HPC communities attempt to understand each other's language and find common research ground at the Dagstuhl Seminar on Program Composition and Optimization (10191), at which Rich was an attendee.

Group photo taken at the Dagstuhl Seminar on Program Composition and Optimization (10191)

 

IPDPS'10 Awards session.

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Photo: Receiving the Best Paper Award (Software Track) at IPDPS'10. Pictured, left-to-right: Cindy Phillips (session chair), Kath Knobe, Aparna, and Rich. [Atlanta, Apr 21, 2010]

Kath, Aparna, and Rich receiving the IPDPS'10 Best Paper Award (software track) 

 

Aparna @ 2010 CoC Awards!

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Congratulations, Aparna, for being named one of the Georgia Tech College of Computing's “Outstanding Graduate Research Assistants!” The honor is well-deserved, given your exemplary research accomplishments over the past year, including a Best Paper Winner at IPDPS'10 and Best Paper Finalist at SC'09.

Aparna & Rich at the Georgia Tech College of Computing 2010 Awards Ceremony 

 

Best paper at IPDPS'10!

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IPDPS'10 Logo

We just got word that Aparna's, Kath Knobe's (Intel), and my paper will get the Best Paper Award in the software track at the IEEE Int'l. Parallel and Distributed Processing Symposium (IPDPS), which will be held here in Atlanta in April. The paper is the first performance evaluation of a relatively new parallel programming model, called Concurrent Collections (CnC), on state-of-the-art multicore systems. It shows of CnC's extraordinary potential, using examples from dense linear algebra.

Congratulations to the team. We owe many thanks to our friends and colleagues at Intel (Frank Schlimbach, Geoff Lowney, Shin Lee, and CK Luk) and Rice University (Vivek Sarkar and Zoran Budimlić) for their feedback, encouragement, and support during the course of this work. 

 

 

Paper accepted at ICSE '10!

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Sangmin Park's paper on fault localization applied to concurrent programs has been accepted for publication! The paper will appear at the ACM/IEEE International Conference on Software Engineering (ICSE), to be held in Cape Town, South Africa in May 2010. This paper describes a novel technique for pinpointing the cause of program failure in multithreaded Java software. Sangmin designed and implemented this approach in a prototype tool called "Falcon." This effort is joint between Prof. Mary Jean Harrold (Sangmin's primary advisor) and The HPC Garage.

 
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