Clusters, Clouds, and Data for Scientific Computing

CCDSC 2012

September 11^th – 14^th, 2012

Châteauform’

La Maison des Contes

427 Chemin de Chanzé, France

Châteauform’

La Maison des Contes

427 Chemin de Chanzé, France

September 11^th – 14^th, 2012

CCDSC 2012 will be held at a resort outside of Lyon France called La maison des contes http://www.chateauform.com/en/chateauform/maison/17/chateau-la-maison-des-contes

The address of the Chateau is:

Châteauform’ La Maison des Contes

427 chemin de Chanzé

69490 Dareizé

Telephone: +33 1 30 28 69 69

1 hr 30 min from the Saint Exupéry Airport

45 minutes from Lyon

GPS Coordinates: North latitude 45° 54' 20" East longitude 4° 30' 41"

Go to http://maps.google.com and type in: “427 chemin de Chanzé 69490 Dareizé” or see:

Maps: http://www.cs.utk.edu/~dongarra/CCDSC-2012/maps.pdf

Map of Chateau: http://www.cs.utk.edu/~dongarra/CCDSC-2012/chateau.pdf

Message from the Program Chairs

This proceeding gathers information about the participants of the Workshop on Clusters, Clouds, and Data for Scientific Computing that will be held at La Maison des Contes, 427 Chemin de Chanzé, France on September 11th – 14th, 2012. This workshop is a continuation of a series of workshops started in 1992 entitled Workshop on Environments and Tools for Parallel Scientific Computing. These workshops have been held every two years and alternate between the U.S. and France. The purpose of this the workshop, which is by invitation only, is to evaluate the state-of-the-art and future trends for cluster computing and the use of computational clouds for scientific computing.

This workshop addresses a number of themes for developing and using both cluster and computational clouds. In particular, the talks covered:

§ Survey and analyze the key deployment, operational and usage issues for clusters, clouds and grids, especially focusing on discontinuities produced by multicore and hybrid architectures, data intensive science, and the increasing need for wide area/local area interaction.

§ Document the current state-of-the-art in each of these areas, identifying interesting questions and limitations. Experiences with clusters, clouds and grids relative to their science research communities and science domains that are benefitting from the technology.

§ Explore interoperability among disparate clouds as well as interoperability between various clouds and grids and the impact on the domain sciences.

§ Explore directions for future research and development against the background of disruptive trends and technologies and the recognized gaps in the current state-of-the-art.

Speakers will present their research and interact with all the participants on the future software technologies that will provide for easier use of parallel computers.

This workshop was made possible thanks to sponsorship from NSF, AMD, ANR, Aristote, Bull, CEA, Cray, Google, France Grilles, Hewlett-Packard, Microsoft Research, The Portland Group, with the scientific support of the Innovative Computing Laboratory at the University of Tennessee in Knoxville (UTK) and University Joseph Fourier of Grenoble.

Thanks!

Jack Dongarra, Knoxville, Tennessee, USA.

Bernard Tourancheau, Grenoble, France

Draft agenda (7/23/12 11:29 AM)

September 11^th – 14^th, 2012

Tuesday September 11th	Introduction and Welcome Jack Dongarra, U of Tennessee Bernard Tourancheau, U Grenoble
6:30 – 7:45	Session Chair: Bernard Tourancheau, U Grenoble	(3 talks - 20 minute each)
6:30	Doug Mills, PGI
6:50	Luiz DeRose, Cray
7:10	Patrick Demichel, HP
8:00 pm – 9:00 pm	Dinner
9:00 pm -

Wednesday, September 12th
7:30 - 8:30	Breakfast
8:30 - 10:35	Session Chair: Jack Dongarra, UTK/ORNL	(5 talks – 25 minutes each)
8:30	Franck Cappello, Univ Paris
8:55	Al Geist, ORNL
9:20	Thilo Kielmann, Vrije Universiteit	Task Farming in Cloud Environments under Budget Constraints
9:45	George Bosilca, UTK
10:10	Christian Obrecht, INSA Lyon	Efficient GPU cluster implementation of the lattice Boltzmann method
10:35 -11:00	Coffee
11:00 - 1:05	Session Chair: Xavier Vigouroux, Bull	(5 talks – 25 minutes each)
11:00	Mike Norman, UCSD
11:25	Fran Berman, RPI
11:50	Joel Saltz, Emory U
12:15	Jelena Pjesivac-grbovic, Google
12:40	Cherri Pancake, Oregon State
1:05 - 2:00	Lunch
2:00 – 4:30	Free time
4:30 – 5:00	Coffee
5:00 – 5:25	Bart Miller, U Wisc
5:25 - 7:30	Panel Chair: Bill Gropp, UIUC
	Thomas Sterling, UI	Panel on “”
	Rusty Lusk, Argonne
	Satoshi Matsuoka, Tokyo Institute of Technology
	Bernd Mohr, Juelich
	Pete Beckman, ANL
8:00 – 9:00	Dinner
9:00 pm -

Thursday, September 13th
7:30 - 8:30	Breakfast
8:30 - 10:35	Session Chair: Jean-Yves Berthou, ANR	(4 talks – 25 minutes each)
8:30	Frederic Desprez, INRIA
8:55	Geoffrey Fox, Indiana
9:20	Miron Livny , U Wisc
9:45	Satoshi Sekiguchi, Grid Technology Research Center, AIST	An Incomplete Metamorphosis of GEO Grid into GEO Cloud
10:35 -11:00	Coffee
11:00 - 1:05	Session Chair: Dana Skow, NSF	(5 talks – 25 minutes each)
11:00	Jeff Vetter, ORNL
11:25	Anne Trefethen, Oxford
11:50	Vaidy Sunderam, Emory U:1	Towards Computing as a Utility via Adaptive Middleware
12:15	Martin Swany, U Deleware
12:40	Jeff Hollingsworth, U Maryland
1:05 - 2:00	Lunch
2:00 – 4:00	Free time
4:00 – 5:00	Coffee
5:00 - 7:30	Session Chair: Laurent Lefevre, INRIA	(6 talks – 25 minutes each)
5:00	Barbara Chapman, U Houston
5:25	Anthony Danalis, UTK
5:50	Rosa Badia , UPC Barcelona
6:15	Andrew Lumsdaine, Indiana
6:40	Andrew Grimshaw, U Virginia
7:05	Emmanuel Jeannot, INRIA
8:00 – 9:00	Dinner
9:00 pm -

Friday, September 14th
7:30 - 8:30	Breakfast
8:30 - 10:35	Session Chair: Bill Brantley , AMD	(5 talks – 25 minutes each)
8:30	Rajeev Thakur, Argonne
8:55	Padma Raghavan, Penn State
9:20	Phil Papadopoulos, UC San Diego
9:45	Raymond Namyst, U Bordeaux & INRIA
10:10	Ewa Deelman, ISI
10:35 -11:00	Coffee
11:00 - 1:05	Session Chair: Philippe D'anfray, CEA & Aristote	(4 talks – 25 minutes each)
11:00	Anne Benoit, ENS Lyon	Energy-aware mappings of series-parallel workflows onto chip multiprocessors
11:25	David Abramson, Monash U	Assertion Based Parallel Debugging: A new way of thinking?
11:50	Aurelien Bouteiller , UTK	Options and Challenges for Fault Tolerance
12:15	Guillaume de Verdière, CEA
1:05 - 2:00	Lunch
2:00	Depart

Attendee List:

David	Abramson	Monash U
Rosa	Badia	UPC Barcelona
Pete	Beckman	ANL
Anne	Benoit	ENS Lyon
Fran	Berman	RPI
Jean-Yves	Berthou	ANR
George	Bosilca	UTK
Aurelien	Bouteiller	UTK
Bill	Brantley	AMD
Franck	Cappello	Univ Paris
Barbara	Chapman	u Houston
Guillaume	COLIN DE VERDIERE	CEA
Philippe	D'anfray	CEA & Aristote
Anthony	Danalis	UTK
Ewa	Deelman	ISI
Patrick	Demichel	HP
Luiz	DeRose	Cray
Frederic	Desprez	INRIA
Jack	Dongarra	UTK/ORNL
Geoffrey	Fox	Indiana
Al	Geist	ORNL
Brice	Goglin	U Bordeaux & INRIA
Andrew	Grimshaw	U Virginia
Bill	Gropp	UIUC
Jeff	Hollingsworth	U Maryland
Emmanuel	Jeannot	INRIA
Thilo	Kielmann	Vrije Universiteit
Laurent	Lefevre	INRIA
Miron	Livny	U Wisc
Andrew	Lumsdaine	Indiana
Rusty	Lusk	Argonne
Satoshi	Matsuoka	Tokyo Institute of Technology
Jean-Francois	Mehaut	U Grenoble & CEA
Doug	Miles	PGI
Bart	Miller	U Wisc
Bernd	Mohr	Juelich
Raymond	Namyst	U Bordeaux & INRIA
Mike	Norman	UCSD
Christian	Obrecht	INSA Lyon
Cherri	Pancake	Oregon State
Phil	Papadopoulos	UC San Diego
Jelena	Pjesivac-grbovic	Google
Padma	Raghavan	Penn State
Joel	Saltz	Emory U
Satoshi	Sekiguchi	Grid Technology Research Center, AIST
Dana	Skow	NSF
Thomas	Sterling	UI
Vaidy	Sunderam	Emory U
Frederic	Suter	CNRS/IN2P3
Martin	Swany	U Deleware
Rajeev	Thakur	Argonne
Bernard	Tourancheau	University Grenoble
Anne	Trefethen	Oxford
Jeff	Vetter	ORNL
Xavier	Vigouroux	Bull

Arrival / Departure Information:

Here is some information on the meeting in Lyon. We have updated the workshop webpage http://bit.ly/ccdsc2012 with the workshop agenda.

On Tuesday September 11th there will be a bus to pick up participants at Lyon's Saint Exupéry (old name Satolas) Airport at 3:00. (Note that the Saint Exupéry airport has its own train station with direct TGV connections to Paris via Charles de Gaulle. If you arrive by train at Saint Exupéry airport please go to the airport meeting point (point-rencontre) (second floor, next to the shuttles, near the hallway between the two terminals, see http://www.lyon.aeroport.fr/en/maps/halls.htm#).

The bus will then travel to pick up people at the Lyon Part Dieu railway station at 4:45. (There are two train stations in Lyon, you want Part Dieu station not the Perrache station.) There will be someone with a sign at the "Meeting Point/point de rencontre" of the station to direct you to the bus.

The bus is expected to arrive at the La Maison des Contes around 5:30. We would like to hold the first session on Tuesday evening from 6:30 pm to 8:00 pm, with dinner following the session. The La Maison des Contes is about 43 Km from Lyon. For a map to the La Maison des Contes go to http://maps.google.com and type in: “427 chemin de Chanzé 69490 Dareizé” or see: Maps: http://www.cs.utk.edu/~dongarra/CCDSC-2012/maps.pdf

Map of Chateau: http://www.cs.utk.edu/~dongarra/CCDSC-2012/chateau.pdf

VERY IMPORTANT: Please send your arrival and departure times to Jack so we can arrange the appropriate size bus for transportation. VERY VERY IMPORTANT: If your flight is such that you will miss the bus on Tuesday, September 11th at 3:00 send Bernard your flight arrival information so he can arrange for a transportation to pick you up at the train station or the airport in Lyon. It turns out that a taxi from Lyon to the Chateau can cost as much as 100 Euro and the Chateau may be hard to find at night if you rent a car and are not a French driver :-).

At the end of the meeting on Friday afternoon, we will arrange for a bus to transport people to the train station and airport. If you are catching an early flight in the morning of Saturday, September 15th you may want to stay at the hotel located at Lyon's Saint Exupéry Airport,

see http://www.lyon.aeroport.fr/eng/en/services/index.htm for details.

There are also many hotels in Lyon area, see: http://www.lyon-france.com/

Due to room constraints at the La Maison des Contes, you may have to share a room with another participant. Dress at the workshop is informal. Please tell us if you need special requirements (vegetarian food etc...) We are expecting to have internet and wireless connections at the meeting.

Please send this information to Jack (dongarra@eecs.utk.edu) by July18^th.

Name:

Institute:

Title:

Abstract:

Participant’s brief biography:

Arrival Details:

David	Abramson	Monash U	VEGATERIAN/meet at train station 2:56 from Paris; depart Friday PM
Rosa	Badia	UPC Barcelona
Pete	Beckman	ANL
Anne	Benoit	ENS Lyon
Fran	Berman	RPI
Jean-Yves	Berthou	ANR	Drive
George	Bosilca	UTK
Aurelien	Bouteiller	UTK	Will be at Part-Dieu for bus
Bill	Brantley	AMD
Franck	Cappello	Univ Paris
Barbara	Chapman	U Houston
Guillaume	Colin de Verdiere	CEA
Philippe	D'anfray	CEA & Aristote
Anthony	Danalis	UTK
Guillaume	de Verdière	CEA
Ewa	Deelman	ISI
Patrick	Demichel	HP
Luiz	DeRose	Cray
Frederic	Desprez	INRIA	Drive
Jack	Dongarra	UTK/ORNL
Geoffrey	Fox	Indiana
Al	Geist	ORNL
Brice	Goglin	U Bordeaux & INRIA
Andrew	Grimshaw	U Virginia
Bill	Gropp	UIUC
Jeff	Hollingsworth	U Maryland	arrive at airport; leave early Friday morning
Emmanuel	Jeannot	INRIA	Arrivie airport 7:55 am from Bordeaux; depart 18:30.
Thilo	Kielmann	Vrije Universiteit	Traveling by train. Arriving on Tuesday, at 4pm at Lyon Part Dieu station.
Laurent	Lefevre	INRIA
Miron	Livny	U Wisc	one day late arrive mid day on 12th
Andrew	Lumsdaine	Indiana
Rusty	Lusk	Argonne
Satoshi	Matsuoka	TITech
Doug	Miles	PGI
Bart	Miller	U Wisc
Bernd	Mohr	Juelich	meet at train station
Raymond	Namyst	U Bordeaux & INRIA
Mike	Norman	UCSD
Christian	Obrecht	INSA Lyon
Cherri	Pancake	Oregon State
Phil	Papadopoulos	UC San Diego
Jelena	Pjesivac-Grbovic	Google
Padma	Raghavan	Penn State
Joel	Saltz	Emory U
Satoshi	Sekiguchi	AIST	one day late, arrive at CDG at 620am on Wednesday then will take TGV from CDG to Lyon Part Dieu.
Dana	Skow	NSF
Thomas	Sterling	UI
Vaidy	Sunderam	Emory U
Frederic	Suter	CNRS/IN2P3
Martin	Swany	U Deleware
Rajeev	Thakur	Argonne	Arrive by train Part Lieu pm depart by train on Friday at 5pm
Bernard	Tourancheau	University Grenoble
Anne	Trefethen	Oxford
Jeff	Vetter	ORNL	Tuesday via Paris DL8414 11:35am; depart Lyon Saturday 7:30 DL 8611
Xavier	Vigouroux	Bull	Drive; leave Thursday

Abstracts:

David Abramson, Monash University

Title:

Assertion Based Parallel Debugging: A new way of thinking?

Abstract:

Programming languages have advanced tremendously over the years, but program debuggers have hardly changed. Sequential debuggers do little more than allow a user to control the flow of a program and examine its state. Parallel ones support the same operations on multiple processes, and are adequate with a small number of cores, but become unwieldy and ineffective on very large machines. Typical scientific codes have enormous multi-dimensional data structures and it is impractical to expect a user to view the data using traditional display techniques.

In this talk I will discuss the use of debug-time assertions (both within and across programs), and show that these can be used to debug parallel programs. The techniques reduce the debugging complexity because they reason about the state of large arrays without requiring the user to know the expected value of every element. When used across programs, the technique can help find errors that occur when a program is ported to a new platform. Whilst assertions can be expensive to evaluate, their performance can be improved by running them in parallel. We have implemented these ideas in a new debugger called Guard, and will illustrate its performance on tens of thousands of cores on a Cray XE6.

Rosa Badia, UPC Barcelona

Title:

Abstract:

Anne BENOIT, ENS Lyon and Institut Universitaire de France

Title:

Energy-aware mappings of series-parallel workflows onto chip multiprocessors

Abstract:

We discuss the problem of mapping streaming applications that can be modeled by a series-parallel graph onto a 2-dimensional tiled CMP architecture. The objective of the mapping is to minimize the energy consumption, using dynamic voltage scaling techniques, while maintaining a given level of performance, reflected by the rate of processing the data streams. This mapping problem turns out to be NP-hard, but we identify a simpler instance, whose optimal solution can be computed by a dynamic programming algorithm in polynomial time. Several heuristics are proposed to tackle the general problem, building upon the theoretical results. Finally, we assess the performance of the heuristics through a set of comprehensive simulations.

Fran Berman, RPI

Title:

Abstract:

George Bosilca, UTK

Title:

Abstract:

Aurelien Bouteiller, UTK

Title:

Abstract:

Franck Cappello, Univ Paris

Title:

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Barbara Chapman, u Houston

Title:

Abstract:

Guillaume Colin de Verdiere, CEA

Title:

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Anthony Danalis, UTK

Title:

Abstract:

Guillaume de Verdière, CEA

Title:

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Ewa Deelman, ISI

Title:

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Patrick Demichel, HP

Title:

Abstract:

Luiz DeRose, Cray

Title:

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Frederic Desprez, INRIA

Title:

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Geoffrey Fox, Indiana

Title:

Abstract:

Al Geist, ORNL

Title:

Abstract:

Brice Goglin, U Bordeaux & INRIA

Title:

Abstract:

Andrew Grimshaw, U Virginia

Title:

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Jeff Hollingsworth, U Maryland

Title:

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Emmanuel Jeannot, INRIA

Title:

Abstract:

Thilo Kielmann, Vrije Universiteit, Amsterdam

Title:

Task Farming in Cloud Environments under Budget Constraints

Abstract:

Elastic applications like bags of tasks can greatly benefit from Infrastructure as a Service (IaaS) clouds that let users allocate compute resources on demand, charging based on reserved time intervals. Users, however, still need guidance for mapping their applications onto multiple IaaS offerings, both minimizing execution time and respecting budget limitations. For budget-controlled execution of bags of tasks, we have developed our BaTS scheduler. BaTS estimates possible budget and makespan combinations using a tiny task sample, and then executes a bag within the user’s budget constraints. Previous work has shown the efficacy of this approach.

In this presentation, I will present recent developments, among which are the use of paid-for-but-idle machines during the tail phase of an execution and the use of spot market instances.

Miron Livny, U Wisc

Title:

Abstract:

Andrew Lumsdaine, Indiana

Title:

Abstract:

Doug Miles, PGI

Title:

Abstract:

Bart Miller, U Wisc

Title:

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Raymond Namyst, U Bordeaux & INRIA

Title:

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Mike Norman, UCSD

Title:

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Christian Obrecht, Institute: EDF R&D / CETHIL UMR5008

Title:

Efficient GPU cluster implementation of the lattice Boltzmann method

Abstract:

The lattice Boltzmann method (LBM) is an innovative and promising approach in computational fluid dynamics. From an algorithmic standpoint it reduces to a regular data parallel procedure and is therefore, well-suited to high performance computations. Numerous works report efficient implementations of the LBM for the GPU, but very few mention multi-GPU versions and even fewer GPU cluster implementations. Yet, to be of practical interest, GPU LBM solvers need to be able to perform large scale simulations. In the present contribution, we describe an efficient LBM implementation for CUDA GPU clusters. Our solver consists of a set of MPI communication routines and a CUDA kernel specifically designed to handle three-dimensional partitioning of the computation domain. Performance measurements were carried out on a small cluster. We show that the results are satisfying, both in terms of data throughput and parallelisation efficiency.

Cherri Pancake, Oregon State

Title:

Abstract:

Phil Papadopoulos, UC San Diego

Title:

Abstract:

Jelena Pjesivac-grbovic, Google

Title:

Abstract:

Padma Raghavan, Penn State

Title:

Abstract:

Joel Saltz, Emory U

Title:

Abstract:

Satoshi Sekiguchi, National Institute of Advanced Industrial Science and Technology (AIST)

Title:

An Incomplete Metamorphosis of GEO Grid into GEO Cloud

Abstract:

The "GEO Grid" project since 2005 is primarily aiming at providing an E-Science infrastructure for worldwide Earth Sciences community. In the community there are wide varieties of existing data sets including satellite imagery, geological data, and ground sensed data that each data owner insists own licensing policy. Also, there are so many of related projects that will be configured as virtual organizations (VOs) enabled by Grid technology. However, Time flies quickly. The technologies we have brought to build the GEO Grid had too rich capability so that the cost of its operation rose higher. In fact the design was made by listening voices of users, data owners and operation managers, but it made the system more complicated. Recently, we have decided to move those systems into cloud space and recaptured its easy operation. I will demonstrate some of our experience and findings on metamorphosing the GEO Grid into Cloud.

Vaidy Sunderam, Emory University

Title:

Towards Computing as a Utility via Adaptive Middleware

Abstract:

With the increasing maturation of grids and clouds, the vision of computing as a utility, is starting to become a reality. However, usability of such platforms for executing science and engineering applications is a challenge. In order for these applications to utilize resources ranging from on-premise to federated to on-demand platforms, they often need target-specific adjustments and reconciliations -- which pose considerable logistical and efficiency obstacles. This talk will describe the proposed design of adaptive middleware to enhance the executability of applications on varied computational back-ends. Preliminary experiences with use cases that measure the feasibility and issues with cross platform computing will be discussed.

Frederic Suter, CNRS/IN2P3

Title:

Abstract:

Martin Swany, U Deleware

Title:

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Rajeev Thakur, Argonne

Title:

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Anne Trefethen, Oxford

Title:

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Jeff Vetter, ORNL

Title:

Abstract:

Biographies of Attendees

David Abramson

Institute: Monash U

Rosa Badia

Institute: UPC Barcelona

Pete Beckman

Institute: ANL

Anne BENOIT

Institute: ENS Lyon and Institut Universitaire de France

Anne Benoit received the PhD degree from Polytechnical Institute of

Grenoble (INPG) in 2003, and the HDR from Ecole Normale Superieure(ENS Lyon) in 2009. She is currently an associate professor in the Computer Science Laboratory LIP at ENS Lyon, France. She is the author of 24 papers published in international journals, and 56 papers published in international conferences. She is the advisor of 4 PhD theses. Her research interests include algorithms design and scheduling techniques for parallel and distributed platforms, and also the performance evaluation of parallel systems and applications. She is Associate Editor of JPDC. She was the program chair of several workshops and conferences. She is a senior member of the IEEE. She has been elected a Junior Member of Institut Universitaire de France in 2009.

Fran Berman

Institute: RPI

Jean-Yves Berthou

Institute: ANR

Jean-Yves Berthou has joined in September 2011 the French National Research Agency (ANR) as Director of the Department for Information and Communication Science and Technologies. He has been before that the Director of the EDF R&D Information Technologies program since 2008 and the coordinator of the EESI European Support Action, European Exascale Software Initiative, www.eesi-project.eu.

Jean-Yves received a Ph.D in computer science from "Pierre et Marie Curie" University (PARIS VI) in 1993. His research deals mainly with Parallelization, Parallel Programming and Software Architecture for Scientific Computing.

Jean-Yves joined EDF R&D in 1997 as a researcher. He was the head of the Applied Scientific Computing Group (High Performance Computing, Simulation Platforms Development, Scientific Software Architecture) at EDF R&D from 2002 to 2006. He has been Chargé de Mission – Strategic Steering Manager for Simulation, in charge of the simulation program at EDF R&D from 2006 to 2009.

George Bosilca

Institute: UTK

Aurelien Bouteiller

Institute: UTK

Aurelien Bouteiller received is Ph.D. from University of Paris in 2006, under the direction of Franck Cappello. His research is focused on improving performance and reliability of distributed memory systems. Toward that goal, he investigated automatic (message logging based) checkpointing approaches in MPI, Algorithm Based fault tolerance approaches and their runtime support, mechanisms to improve communication speed and balance within nodes of many-core clusters, and employing emerging data flow programming models to negate the raise of jitter on large scale systems (DAGuE project). These works resulted in over twenty-five publications in international conferences and journals and three distinguished paper awards from IPDPS and EuroPar. He his also a contributor to Open MPI and participates to the MPI-3 Forum.

Bill Brantley

Institute: AMD

Franck Cappello

Institute: Univ Paris

Barbara Chapman

Institute: U of Houston

Philippe D'anfray

Institute: CEA & Aristote

Anthony Danalis

Institute: UTK

Guillaume de Verdière

Institute: CEA

Ewa Deelman

Institute: ISI

Patrick Demichel

Institute: HP

Luiz DeRose

Institute: Cray

Frederic Desprez

Institute: INRIA

Jack Dongarra

Institute: UTK/ORNL

Geoffrey Fox

Institute: Indiana

Al Geist

Institute: ORNL

Brice Goglin

Institute: U Bordeaux & INRIA

Andrew Grimshaw

Institute: U Virginia

Bill Gropp

Institute: UIUC

Jeff Hollingsworth

Institute: U Maryland

Emmanuel Jeannot

Institute: INRIA

Thilo Kielmann

Institute: Vrije Universiteit, Amsterdam

Thilo Kielmann studied Computer Science at Darmstadt University of Technology, Germany. He received his Ph.D. in Computer Engineering in 1997, and his habilitation in Computer Science in 2001, both from Siegen University, Germany. Since 1998, he is working at Vrije Universiteit Amsterdam, The Netherlands, where he is currently Associate Professor at the Computer Science Department. His research interests are in the area of high-performance, distributed computing, namely programming environments and runtime systems for applications on clusters, grids, and clouds.

Laurent Lefevre

Institute: INRIA

Miron Livny

Institute: U Wisc

Andrew Lumsdaine

Institute: Indiana

Rusty Lusk

Institute: Argonne

Satoshi Matsuoka

Institute: Tokyo Institute of Technology

Doug Miles

Institute: PGI

Bart Miller

Institute: U Wisc

Bernd Mohr

Institute: Juelich

Raymond Namyst

Institute: U Bordeaux & INRIA

Mike Norman

Institute: UCSD

Christian Obrecht

Institute: EDF R&D / CETHIL UMR5008

Christian Obrecht is currently working as an engineer for EDF R&D and pursuing doctoral studies at the CETHIL laboratory in INSA-Lyon under the supervision of B. Tourancheau (LIG), J.-J. Roux and F. Kuznik (CETHIL). He graduated in mathematics from ULP-Strasbourg I in 1990 and taught at high school level until 2008. He received a MSc degree in computer science from UCB-Lyon I in 2009. His research work focuses on implementation and optimization strategies for parallel CFD applications on emerging many-core architectures.

Cherri Pancake

Institute: Oregon State

Phil Papadopoulos

Institute: UC San Diego

Jelena Pjesivac-grbovic

Institute: Google

Padma Raghavan

Institute: Penn State

Joel Saltz

Institute: Emory U

Satoshi Sekiguchi, National Institute of Advanced Industrial Science and Technology (AIST)

He has received BS from The University of Tokyo, ME from University of Tsukuba, and Ph.D. in Information Science and Technology from The University of Tokyo, respectively. He joined Electrotechnical Laboratory (ETL), Japan in 1984 to engage research in high-performance computing widely from its system architecture to applications. He has extraordinary knowledge in applying IT-based solutions to many of society's problems related to global climate change, environmental management and resource efficiency. He served as the Director of Grid Technology Research Center, the Director of Information Technology Research Institute, National Institute of Advanced Industrial Science and Technology (AIST), and is currently the Deputy General Director, Directorate for Information Technology and Electronics, AIST. He has been contributing to the Open Grid Forum as a member of board of directors, is a member of IEEE Computer Society, and Information Processing Society of Japan.

Dana Skow

Institute: NSF

Thomas Sterling

Institute: UI

Vaidy Sunderam

Institute: Emory University

Vaidy Sunderam is a professor at Emory University. His research interests are in parallel and distributed processing systems and infrastructures for collaborative computing. His prior and current research efforts have focused on system architectures and implementations for heterogeneous metacomputing, including the Parallel Virtual Machine system and several other frameworks such as IceT, CCF, Harness, and Unibus.

Frédéric Suter

Institute: IN2P3/CNRS Computing Center

Frédéric Suter is a CNRS junior researcher in Computer Science at the IN2P3 Computer Center in Lyon, France since October 2008. His research interests include scheduling, grid computing and platform and application simulation. He obtained his M.S. from the Université Jules Verne, Amiens, France in 1999 and his Ph.D. from the Ecole Normale Supérieure de Lyon, France in 2002. Prior to joining the CNRS, he was an assistant professor at Nancy University, France. He is currently involved in the SONGS (Simulation of Next Generation Systems) project based on the SimGrid toolkit (http://simgrid.inria.gforge.fr) and leader of the work package on Data Grids. He is particularly interesting in gathering and analyzing usage logs of storage systems ans IaaS Clouds. He was also mandated by the French NGI to foster collaborations between Computer Science researchers and operators of the production Grid on the topic of Cloud Computing.

Martin Swany

Institute: U Deleware

Rajeev Thakur

Institute: Argonne

Bernard Tourancheau

Institute: University Grenoble

Anne Trefethen

Institute: Oxford

Jeff Vetter

Institute: ORNL

Xavier Vigouroux

Institute: Bull

Xavier is Based in Grenoble in France where he works for the Bull HPC business unit as HPC Business Develoment Manager for Education and Research Market. Prior to that, he has been Bull HPC Benchmark Manager for 5 years. He also worked on high availability, cluster, and, High Producitivy Computer Systems for Sun Microsystems and Sun labs, and HP. He obtained his PhD in 1996 with Bernard as advisor.