John A Gunnels  John A Gunnels photo       

contact information

Distinguished Research Staff Member - Manager: Reasoning Systems
Thomas J. Watson Research Center, Yorktown Heights, NY USA
  +1dash914dash945dash3833

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Professional Associations

Professional Associations:  ACM  |  IEEE


2012

Toward Real-Time Modeling of Human Heart Ventricles at Cellular Resolution: Simulation of Drug-Induced Arrhythmias [Gordon Bell Award Finalist]
Arthur A. Mirin, David F. Richards, James N. Glosli, Erik W. Draeger, Bor Chan, Jean-luc Fattebert, William D. Krauss, Tomas Oppelstrup, John Jeremy Rice, John A. Gunnels, Viatcheslav Gurev, Changhoan Kim, John Magerlein, Matthias Reumann, Hui-Fang Wen
Supercomputing, 2012


2009

Programming the Linpack benchmark for Roadrunner
M Kistler, J Gunnels, D Brokenshire, B Benton
IBM Journal of Research and Development 53(5), 9--1, IBM, 2009

Programming the Linpack benchmark for the IBM PowerXCell 8i processor
Michael Kistler, John Gunnels, Daniel Brokenshire, Brad Benton
Scientific Programming , Volume 17 Issue 1-2 17(1), 43--57, IOS Press, 2009


2008

Fine-grained parallelization of the Car-Parrinello ab initio molecular dynamics method on the IBM Blue Gene/L supercomputer
Eric Bohm, Abhinav Bhatele, Laxmikant V Kale, Mark E Tuckerman, Sameer Kumar, John A Gunnels, Glenn J Martyna
IBM Journal of Research and Development 52(1.2), 159--175, IBM, 2008

Overview of the IBM Blue Gene/P project
I B M Blue Gene Team
IBM Journal of Research and Development 52(1/2), 199--220, IBM CORP 1 NEW ORCHARD ROAD, ARMONK, NY 10504 USA, 2008


2007

Extending stability beyond CPU millennium: a micron-scale atomistic simulation of Kelvin-Helmholtz instability
James N Glosli, David F Richards, KJ Caspersen, RE Rudd, John A Gunnels, Frederick H Streitz
Proceedings of the 2007 ACM/IEEE conference on Supercomputing, pp. 58

Minimal data copy for dense linear algebra factorization
Fred G Gustavson, John A Gunnels, James C Sexton
Applied Parallel Computing. State of the Art in Scientific Computing, pp. 540--549, Springer, 2007

Is cache-oblivious DGEMM viable?
John A Gunnels, Fred G Gustavson, Keshav Pingali, Kamen Yotov
Applied Parallel Computing. State of the Art in Scientific Computing, pp. 919--928, Springer, 2007


2006

A recursive formulation of the inversion of symmetric positive definite matrices in packed storage data format
Bjarne S Andersen, John A Gunnels, Fred Gustavson, Jerzy Wa\'sniewski
Applied Parallel Computing, pp. 287--296, 2006


2005

Large-scale first-principles molecular dynamics simulations on the BlueGene/L platform using the Qbox code
Francois Gygi, Robert K Yates, Juergen Lorenz, Erik W Draeger, Franz Franchetti, Christoph W Ueberhuber, Bronis R de Supinski, Stefan Kral, John A Gunnels, James C Sexton
Proceedings of the 2005 ACM/IEEE conference on Supercomputing, pp. 24

Early Experience with Scientific Applications on the Blue Gene/L Supercomputer
G. Almasi, G. Bhanot, D. Chen, M. Eleftheriou, B. Fitch, A. Gara, R. Germain, J. Gunnels, M. Gupta, P. Heidelberg, M. Pitman, J. Sexton, F. Suits, P. Vranas, B. Walkup, Y. Zhestkov, A. Curioni, W. Andreoni, et al.
Euro-Par 2005 Parallel Processing, pp. 560-570
CiteSeerX - Scientific Literature Digital Library and Search Engine [http://citeseerx.ist.psu.edu/oai2] (United States) ER

Blue Gene/L performance tools
Xavier Martorell, Nils Smeds, Robert Walkup, Jos\'e R Brunheroto, George Almasi, John A Gunnels, Luiz DeRose, Jes\'us Labarta, Francesc Escale, Judit Gimenez, others
IBM journal of research and development 49(2.3), 407--424, IBM, 2005

The science of deriving dense linear algebra algorithms
Paolo Bientinesi, John A Gunnels, Margaret E Myers, Enrique S Quintana-Ort\'\i, Robert A Geijn
ACM Transactions on Mathematical Software (TOMS) 31(1), 1--26, ACM, 2005

Design and exploitation of a high-performance SIMD floating-point unit for Blue Gene/L
Siddhartha Chatterjee, Leonardo R Bachega, Peter Bergner, Kenneth A Dockser, John A Gunnels, Manish Gupta, Fred G Gustavson, Christopher A Lapkowski, Gary K Liu, M Mendell, others
IBM Journal of Research and Development 49(2.3), 377--391, IBM, 2005

Design and implementation of message-passing services for the Blue Gene/L supercomputer
George Alm\'asi, Charles Archer, Jos\'e G Castanos, John A Gunnels, C Christopher Erway, Philip Heidelberger, Xavier Martorell, Jos\'e E Moreira, Kurt Pinnow, Joe Ratterman, others
IBM Journal of Research and Development 49(2.3), 393--406, IBM, 2005


2004

Architecture and performance of the BlueGene/L Message Layer
George Almasi, Charles Archer, John Gunnels, Philip Heidelberger, Xavier Martorell, Jose E Moreira
Recent Advances in Parallel Virtual Machine and Message Passing Interface, pp. 405--414, Springer, 2004

Unlocking the performance of the BlueGene/L supercomputer
George Almasi, Siddhartha Chatterjee, Alan Gara, John Gunnels, Manish Gupta, Amy Henning, Jose E Moreira, Bob Walkup
Proceedings of the 2004 ACM/IEEE conference on Supercomputing, pp. 57


2002

An overview of the BlueGene/L supercomputer
N.R. Adiga, G. Almasi, G.S. Almasi, Y. Aridor, R. Barik, D. Beece, R. Bellofatto, G. Bhanot, R. Bickford, M. Blumrich, others
Supercomputing, ACM/IEEE 2002 Conference, pp. 60--60, IEEE Computer Society
Abstract


2001

A family of high-performance matrix multiplication algorithms
John A Gunnels, Greg M Henry, Robert A Van De Geijn
Computational Science—ICCS 2001, pp. 51--60, Springer


1998

A flexible class of parallel matrix multiplication algorithms
John Gunnels, Calvin Lin, Greg Morrow, Robert Van De Geijn
Parallel Processing Symposium, 1998. IPPS/SPDP 1998. Proceedings of the First Merged International... and Symposium on Parallel and Distributed Processing 1998, pp. 110--116


1997

PLAPACK: Parallel Linear Algebra Package.
Phillip Alpatov, Gregory S Baker, H Carter Edwards, John A Gunnels, Greg Morrow, James Overfelt, Robert A van de Geijn, Yuan-Jye J Wu
PPSC, 1997