Conference Overview

Recent advances in computer architecture and computing systems (such as, multicore processors and hybrid systems with accelerators) have made it very challenging for programmers to reach the performance potential of current systems. In addition, recent advances in numerical algorithms and software optimizations have tremendously increased the number of alternatives for solving a problem, which further complicates the software tuning process. These issues have led researchers to the idea of software systems that can automate the performance tuning process by running a large set of empirical evaluations to configure applications and libraries on the targeted computing platform.

The Fourth international Workshop on Automatic Performance Tuning (iWAPT2009) is an International workshop that provides opportunities for researchers and practitioners in all fields related to automatic performance tuning to exchange ideas and experiences on algorithms, libraries, and applications tuned for recent computing platforms. This workshop will consist of a few invited speaker presentations from leading researchers in academia or industry, and several presentations of peer-reviewed papers that report the latest results in auto-tuning research.

Topics of Interest

Papers are solicited in following areas of automatic performance tuning including, but not limited to:

Paper Submission Guidelines

Paper format

File format - PDF format
Paper length - maximum 15 pages
Paper style - Springer LNCS format: Latex templates are available from


Submission must be made through the web form. See:


Poster Submission Guidelines

Poster submission

Abstracts (10pt, single-column, a maximum of 300 words, one A4-page) on a wide range of automatic performance tuning topics (as listed above) are welcome. The manuscripts should include the following:

Submissions will be reviewed by the committee and evaluated in terms of interest to the audience. If accepted, the abstract as it is will be used as a camera-ready manuscript for inclusion in the conference proceedings. Authors should submit the abstract electronically (in PDF or PS format) from

Poster presentation

The authors are responsible for the printing of display material. The poster board size is 110cm width by 170cm height. A table for PC demonstration with 100V electricity and wireless LAN can be provided on prior request. In addition, the iWAPT2009 conference has an indexing session of the poster presentaions. The authors are also responsible for the five minutes talk of the material.

Questions regarding the workshop should be forwarded to (replacing "_at_" by "@" in the email address).

All accepted papers will appear on the workshop website.

Important Dates

Paper submission due: July 6th, 2009, 23:59 EDT (now closed)
Paper acceptance notification: July 24th, 2009 (changed)
Final paper submission: August 3rd, 2009 (changed)
Poster submission due: August 28th, 2009, 23:59 EDT (now closed)
Poster acceptance notification: August 31th, 2009 (changed)
Workshop: October 1-2, 2009


Registration fee

To join the workshop, please register from the registration page. No registration fee is required.


The banquet is scheduled in the evening of October 1st. The fee will be 5,000 yen. To attend the banquet, please register from the registration page no later than Sept. 25


Program Chair

Keita Teranishi, Cray, Inc., USA

Program Vice-chair

John Cavazos, University of Delaware, USA

Program Committee

Dorian Arnold, University of New Mexico, USA
Sanjukta Bhowmick, The Pennsylvania State University, USA
Francois Bodin, CAPS enterprise, France
Victor Eijkhout, Texas Advanced Computing Center, University of Texas, USA
Grigori Fursin, INRIA, France
Domingo Jimenez Canovas, University of Murcia, Spain
Maria Jesus Garzaran, University of Illinois Urbana-Champaign, USA
Mary Hall, University of Utah, USA
Shoji Itoh, RIKEN, Japan
Takeshi Iwashita, Kyoto University, Japan
Russ Joseph, Northwestern University, USA
Takahiro Katagiri, The University of Tokyo, Japan
Dinesh Kaushik, Argonne National Laboratory, USA
Osni Marques, Lawrence Berkeley National Laboratory, USA
Vivek Narasayya, Microsoft Corp., USA
Boyana Norris, Argonne National Laboratory, USA
Markus Puschel, Carnegie Mellon University, USA
Xipeng Shen, College of William & Mary, USA
Reiji Suda, The University of Tokyo, Japan
Daisuke Takahashi, University of Tsukuba, Japan
Hiroyuki Takizawa, Tohoku University, Japan
Richard Vuduc, Georgia Institute of Technology, USA
Masahiro Yasugi, Kyoto University, Japan
Mohamed Zahran, City University of New York, USA

Organizing Comittee

Ken Naono, General Chair, Hitachi Ltd., Japan
Takahiro Katagiri, Finance Chair, The University of Tokyo, Japan
Keita Teranishi, Program Chair, Cray, Inc., USA
John Cavazos, Program Vice-Chair, University of Delaware, USA
Reiji Suda, Local Arrangement Chair, The University of Tokyo, Japan
Yusaku Yamamoto, Publicity Chair, Nagoya University, Japan
Hisayasu Kuroda, Web Administrating Chair, Ehime University, Japan