Wen-mei W. Hwu is the Walter J. ("Jerry") Sanders - Advanced Micro Devices Endowed Chair in Electrical and Computer Engineering in the Coordinated Science Laboratory of the University of Illinois at Urbana-Champaign. From 1997 to 1999, Dr. Hwu served as the chairman of the Computer Engineering Program at the University of Illinois. His research interest is in the area of architecture, implementation, and software for high-performance computer systems. He is the director of the OpenIMPACT project, which has delivered new compiler and computer architecture technologies to the computer industry since 1987. For his contributions to the areas of compiler optimization and computer architecture, he received the 1993 Eta Kappa Nu Outstanding Young Electrical Engineer Award, the 1994 Xerox Award for Faculty Research, the 1994 University Scholar Award of the University of Illinois, the 1997 Eta Kappa Nu-Holmes MacDonald Outstanding Teaching Award, the 1998 ACM SigArch Maurice Wilkes Award, the 1999 ACM Grace Murray Hopper Award, the 2001 Tau Beta Pi Daniel C. Drucker Eminent Faculty Award, and the 2002 ComputerWorld Honors Archive Medal. Prof. Hwu holds four patents and is a fellow of IEEE and ACM. Dr. Hwu serves on the Executive Committee of the MARCO/DARPA Centers for Circuit and System Solutions and Gigascale Systems Research. Dr. Hwu received his PhD degree in Computer Science from the University of California, Berkeley.

Cameron McNairy is an Architect for the Montecito program. Previous to Montecito, Cameron was a micro-architect for the Itanium 2 processor, contributing to its design and final validation. He plans to focus on performance, RAS, and system interface issues in the design of future IPF products. He came to the Itanium 2 team soon after its inception from performance work on the first Itanium processor.

Cameron received a BSEE and an MSEE from Brigham Young University. He is a member of the Institute of Electrical and Electronics Engineers.

César De Rose is an Associate Professor in the Computer Science Department at the Pontifical Catholic University of Rio Grande do Sul (PUCRS), Porto Alegre, Brazil. His primary research interests are parallel and distributed computing and parallel architectures. He is currently conducting research on a variety of topics applied to clusters and grids, including resource management, resource monitoring and distributed allocation strategies.

Dr. De Rose received his doctoral degree in Computer Science from the University Karlsruhe, Germany, in 1998. He currently leads the Research Center in High Performance Computing (CPAD - PUCRS/HP) at PUCRS.

Bron Nelson is an SGI Software Engineer assigned fulltime to the Nasa Ames "Columbia" system, an installation of twenty 512 CPUs SGI Altix machines running Linux. Currently ranked #2 on the Top 500 list, the Columbia machines are used by a variety of researchers in aeronautics, cosmology, weather, chemistry, and other fields. Bron works with the researchers to help them achieve high performance on their codes; does trouble shooting and diagnosis when problems arise; and communicates back to R&D about what works, what doesn't, and what future directions would be useful.

Bron has been with SGI for the past 17 years. Prior to that, he worked for Cray Research and LLNL. He has an MS in Computer Science from UCLA, and a BA in Mathematics from UC Berkeley.

Dr. Eric Jul is a Professor of Computer Science at the Dept. of Computer Science at the University of Copenhagen (DIKU) and heads the Distributed Systems Group. He is also the Director of the Danish Center for Grid Computing. Dr. Jul has been doing research in distributed systems for 30 years and was one of the principal developers of the Emerald distributed programming language as well as the main implementer of the Emerald Virtual Machine, which includes full, on-the-fly, fine-grained object mobility.

Peter Chubb is a Senior Research Engineer at National ICT Australia and a Research Officer at UNSW. He completed his PhD under Associate Professor John Lions in 1989. Peter worked at Softway Pty Ltd as a consultant and software engineer doing UNIX kernel, security, and embedded work. He joined Gelato@UNSW at its inception in 2002.

Peter started using UNIX in 1979 and has never used Microsoft operating systems for more than a few moments. His home life includes wife Lucy, who also works at Gelato@UNSW, and two small daughters. Peter's hobbies include music (he runs a recorder consort), aquaria (3 tanks at present, no room for more), and fine wines.

Eric Gouriou is a Lead Engineer in the HP Caliper project. Before joining HP in 1999, Eric worked as a technical consultant for Oracle in France. Eric holds a master's of Computer Science from UCLA and a Diplôme d'Ingénieur from Ecole Centrale Paris.

Peter Buhr received BSc Hons, MSc, and PhD degrees in computer science from the University of Manitoba in 1976, 1978, 1985, respectively. He is currently an Associate Professor in the School of Computer Science at the University of Waterloo, Canada. He was a Research Scientist with SUN Microsystems Labs in 1993/4. His research interests include concurrency, concurrent profiling/debugging, persistence, and polymorphism. He is the principal designer and primary developer of both µC++, a C++ high-level thread library, and µProfiler, a profiling and debugging toolkit for µC++. Dr. Buhr is a member of the Association of Computing Machinery.

Stéphane Eranian is a Senior Research Scientist at HP Labs, where he has been working on the porting of Linux to the IA-64 platform since 1998. He has made numerous contributions to the Linux/IA-64 kernel and related user-level programs. He is the main architect of the Linux/IA-64 kernel performance monitoring subsystem (perfmon). He is also the creator of the pfmon tool, which uses this subsystem to collect performance information.

Before joining HP, Stéphane worked on his PhD at Chorus Systems (now Jaluna) in France. He holds a D.E.A. (BSc degree) in Operating Systems from Universite PARIS 6, France, and a Doctorate (PhD degree) in Computer Science from Universite PARIS 7, France. He is a member of USENIX and co-author of "IA-64 Linux Kernel: Design and Implementation."

Jim Callister works for Intel's Fort Collins Design Center in Colorado, USA. In addition to working in firmware and CPU design, Jim has devoted most of his 23-year career to all aspects of CPU performance engineering. He participated in the architecture definition and evaluation of the Itanium architecture, with special emphasis on the performance monitor, and for the past nine years has been a member of the Itanium 2 processor design team. If he remembers correctly, Jim has degrees in Mathematics, Computer Science, and Electrical Engineering.

Hans Boehm is the primary author of a widely used open source garbage collector library. He was involved in the recent revision of the Java memory model, and is now participating in an effort to clearly define the meaning of multithreaded C++ programs. Boehm holds a PhD from Cornell University. He was on the faculty at the University of Washington and at Rice University before joining Xerox PARC, SGI, and finally HP Labs. Boehm has chaired several programming language research conferences and is the past chair of ACM SIGPLAN.

Although Matthieu Delahaye has worked on the Gelato portal since its creation in 2002, he officially joined Gelato Central Operations as a Software Engineer in August 2004. In addition to maintaining the Gelato portal, Matthieu works on Gelato Coconut, Gelato Vanilla, and other challenging infrastructure and development projects around the Itanium processor. Matthieu made his first kernel hacks while involved in the parisc-linux port effort, and then joined the Debian Project. At the same time, he received an MS in Computer Science from ESIEE, where he subsequently worked for two years in the IT Department.

David Moore has been involved with programming languages and compilers for almost 30 years. He was a contributor to the Pascal language, the author of a Modula-2 compiler for CP/M 80 and other operating systems, part of a team that ported an Ada compiler and environment to UNIX, and a contributor to the National Compiler Infrastructure project. He is currently a member of the C++ Compiler Product Team at Intel with special responsibility for Linux support.

Jon Lau is the Assistant Head (Technical) at the National Grid Office (NGO) as well as the Technical Manager of the National Grid Pilot Platform (NGPP). He coordinates the technical issues of the NGPP and virtual grid communities, which span from network and security to middleware software. He developed the first Access Grid (AG) node in Singapore, and is promoting the deployment of more AG sites in Singapore through the demonstration of its benefits of AG-enabling conferences and meetings.

Prior to joining the NGO in January 2003, he was the Director of Engineering at eXage Private Limited, a high-tech spin-off from the Kent Ridge Digital Labs (KRDL), where he led the development team in designing a scalable architecture ready to evolve to meet the needs of eXage's customer.

Jon's technological experience is driven from both hardware interests and software R&D work at both the Information Technology Institute and KRDL. The many projects that Jon has been involved with include WinViz, a data visualization tool, as well as the Expert Advisory System on the Internet (a national project), where he performed the role of a Technical Manager.

Jon holds a bachelor's degree in Computing and a Master's in Technology, both from the National University of Singapore.

As a member of the Linux Performance and Scalability team within HP's Linux and Open Source Lab (LOSL), Lee Schermerhorn works on performance engineering for Linux, primarily on HP Integrity (Itanium) platforms, with emphasis on NUMA scheduling/affinity and (storage) IO performance.

Jaesik Kwak is the Director of a co-development project between BMD and IDRTech, Inc., and is also a developer of the AAOGS Grid System. From 2002-2003, Kwak was an organizer of the Computational Chemistry and Nanomaterial Grid in the Korean National Grid Project.

Kwak received his master's degree at KAIST (Korea Advanced Institute of Science and Technology) in Quantum Chemistry. His current research areas include: development of total solution for computer-aided drug discovery, grid application to quantum chemistry for high throughput processing of drug candidates, high-performance chemical database system, and computational similarity research of chemicals. Kwak has implemented a grid system to share and integrate Itanium servers to perform high throughput processing of chemical data. He is working to improve the system and to modulize its functionalities and architecture to share with other people. He is also working on handling and tuning a large-scale database to use for drug discovery, adopting a large-scale memory model of the Itanium system.

Nan Holda is the Marketing and Web Development Specialist for Gelato. Her main responsibilities include: increasing public awareness about Gelato and its mission, assisting Federation marketing strategies, overseeing portal development, keeping the portal up-to-date regarding Linux Itanium news and Federation Members' activities, and aiding conference exhibition and meeting coordination. Nan formerly worked at SourceGear Corporation as a Technical Support and Marketing Specialist for their version control software. She is also a freelance journalist for several local newspapers, and is a graduate of the University of Illinois at Urbana-Champaign (UIUC).

Since 2004, Christoph Lameter has worked at SGI as a Linux Developer for the Linux Core System Group, working on the Linux timer subsystem, page faults, and page tables as well as locking mechanisms.

• 2004: PhD, Fuller Graduate School on Quantum Theory and Reality
• 2003: Infrant Technologies—scalability issues for embedded systems
• 2002: FoundryOne Corporation—scalable network infrastructures
• 1999-2001: SiteROCK Corporation—Open Source Ambassador
• 1999-2001: Board Member of Linux International
• 2000-today: Advisory Council Linux Professional Institute
• 1997: Elected to the Board of Directors of the Debian Project
• 1996-today: Member of the Debian Project
• 1994: Master of Divinity, Fuller Graduate School
• 1986: Master of Computer Science, University of Bremen on compiler technology

Patrick Demichel has worked at HP since graduating from the Control Data Corporation (CDC) School in France in 1980. He worked on Real Time Executive (RTE), and then moved to UNIX in 1986 when HP introduced the series 500, 300, and later the 800. For four years, Patrick worked for the HP Workstation Division in Fort Collins, Colorado, on the Itanium project. Its activity was focused on software development and performance. Currently, Patrick works in Grenoble, France, for HP's Europe, Middle East, and Africa (EMEA) division in a group dedicated to HPC business. In particular, he is member of a team focused on developing a program called Bigtux to make standard Linux versions available and tuned for the IA-64 Superdome in a single 64-way partition, accessing some very large memory and very large I/O resources.

John Harrison has worked in formal verification and automated theorem proving since 1990, when he joined Mike Gordon's "Hardware Verification Group" (HVG) at the University of Cambridge Computer Laboratory. As well as working on the development of the HOL theorem prover, he developed a particular interest in the formalization of real analysis and its application to formal verification of floating-point hardware.

After completing his PhD research in 1995, Harrison spent a very enjoyable year at Åbo Akademi University and Turku Centre for Computer Science (TUCS) in Turku, Finland, where he was a member of Ralph Back's Programming Methods Research Group. Harrison then returned to Cambridge and worked on a formal model of floating-point arithmetic and its application to the verification of some realistic algorithms for transcendental functions. This work attracted the attention of Intel, and in 1998 Harrison joined the company as a Senior Software Engineer specializing in the design and formal verification of mathematical algorithms. He has formally verified and in many cases designed or redesigned numerous algorithms for mathematical functions including division, square root and trigonometric functions.

In his limited spare time over the past 10 years, Harrison has been working on a book giving a comprehensive introduction to automated theorem proving. He hopes that this book will finally reach publication in 2005, and the associated code is already available from his Web page.

Robert Kidd is a Compiler Engineer in the OpenIMPACT team at the University of Illinois at Urbana-Champaign (UIUC), where he is responsible for developing a new front-end library to support future compiler research. He has also worked on back-end enhancements, as well as scripting drivers for GCC compatibility and compiler usability. Robert has a BS in Computer Science with Highest Honors from UIUC.

Jack Carter has spent the last 20 odd years working on compilers and compiler tools. Much of this has been developing linkers for both native and embedded systems along with extensive work developing object transformation tools used for performance debugging, code coverage, and memory simulation input. Jack's current work is with the SGI Open|SpeedShop project.

Sverre Jarp is the Chief Technology Officer in CERN's openlab for DataGrid Application, which is a joint collaboration with industry in order to assess leading-edge information technology for the Large Hadron Collider's Computing Grid in 2007.

He has been working in computing at CERN, the European Organization for Nuclear Research, for over 28 years and has held various managerial and technical positions promoting advanced but cost-effective computing solutions for the laboratory. In 2001-02, he spent a sabbatical year at the HP Labs (Palo Alto, USA) working on software for the Itanium Processor Family. His current field of interest is, in particular, compiler optimization.

S. Jarp holds a degree in Theoretical Physics from the Norwegian University of Science and Technology in Trondheim.

Arutyun Avetisyan is the Deputy Director of the Institute for System Programming (ISP) of the Russian Academy of Sciences (RAS) in Moscow, Russia. Avetisyan is the leader of projects involved with parallel program development systems and cluster management. His research focuses include parallel and distributed programming, cluster technologies, compiler technologies, and software quality. Current compiler-related work includes C++ compiler optimization.

Since 1999, Reinhold Bader has been a member of the scientific staff at Leibniz Computing Centre (LRZ) in Munich, Germany. He is responsible for benchmarking for the purpose of system procurements, libraries, tools, and documentation on HPC systems, user support, and optimization of codes on the LRZ HPC platforms.

Bader attended a physics diploma course at Ludwig-Maximilian University in Munich 1985-89 and 1990-92, including diploma thesis in theoretical solid state physics, and final exams. The course was interrupted by an 8 month industrial training course completed at Rutherford Appleton Laboratory, England from September 1989 to April 1990. For his PhD studies, Bader worked with Prof. H. Bross at Ludwig-Maximilan University in Munich, Germany from 1993-98, and completed his PhD thesis magna cum laude on the electronic and structural properties of tetrahedral semiconductors.

Steve Rowan is an Engineering Manager in HP's High Performance Computing Division. His department is responsible for HP's message passing library, HP-MPI. HP-MPI is supported on Itanium, X86-64, PA-RISC, and Alpha platforms. The product supports numerous interconnects on Linux, HP-UX, and Tru64 Unix. In addition to HP-MPI, the department is also responsible for HP's high-level scientific math library product, HP MLIB. HP MLIB runs on Itanium Linux and HP-UX. In addition to libraries, the department is responsible for HP's Unified Parallel C compiler, the HP-UX FORTRAN compiler, and the HP-UX cluster tool suite, ClusterPack.

Before taking his current position, Steve was responsible for various compiler products and components at HP and Convex Computers. Projects included high-level optimization, FORTRAN, C, C++, and Ada compilers.

Robert J. Fowler is a Senior Research Scientist and Associate Director of the Center for High Performance Software Research at Rice University. His education includes an AB in Physics from Harvard (1971) and MS (1981) and PhD (1985) degrees from the University of Washington. His research interests are in the area of high-performance distributed and parallel computing. Specific interests include compilers and programming environments, architectures, operating systems, performance evaluation, and simulation.