Robert Walkup

According to our database, Robert Walkup authored at least 20 papers between 1996 and 2025.

Collaborative distances:

• Dijkstra number of four.
• Erdős number of four.

2025

Vela: A Virtualized LLM Training System with GPU Direct RoCE.

Apoorve Mohan, Robert Walkup, Bengi Karacali, Ming-Hung Chen, Abdullah Kayi, Liran Schour, Shweta Salaria, Sophia Wen, I-Hsin Chung, Abdul Alim, Constantinos Evangelinos, Lixiang Luo, Marc Dombrowa, Laurent Schares, Ali Sydney, Pavlos Maniotis, Sandhya Koteshwara, Brent Tang, Joel Belog, Rei Odaira, Vasily Tarasov, Eran Gampel, Drew Thorstensen, Talia Gershon, Seetharami Seelam

Proceedings of the 30th ACM International Conference on Architectural Support for Programming Languages and Operating Systems, 2025

2024

The infrastructure powering IBM's Gen AI model development.

Talia Gershon, Seetharami Seelam, Brian Belgodere, Milton Bonilla, Lan Hoang, Danny Barnett, I-Hsin Chung, Apoorve Mohan, Ming-Hung Chen, Lixiang Luo, Robert Walkup, Constantinos Evangelinos, Shweta Salaria, Marc Dombrowa, Yoonho Park, Apo Kayi, Liran Schour, Alim Alim, Ali Sydney, Pavlos Maniotis, Laurent Schares, Bernard Metzler, Bengi Karacali-Akyamac, Sophia Wen, Tatsuhiro Chiba, Sunyanan Choochotkaew, Takeshi Yoshimura, Claudia Misale, Tonia Elengikal, Kevin O. Connor, Zhuoran Liu, Richard Molina, Lars Schneidenbach, James Caden, Christopher Laibinis, Carlos Fonseca, Vasily Tarasov, Swaminathan Sundararaman, Frank B. Schmuck, Scott Guthridge, Jeremy Cohn, Marc Eshel, Paul Muench, Runyu Liu, William Pointer, Drew Wyskida, Bob Krull, Ray Rose, Brent Wolfe, William Cornejo, John Walter, Colm Malone, Clifford Perucci, Frank Franco, Nigel Hinds, Bob Calio, Pavel Druyan, Robert Kilduff, John Kienle, Connor McStay, Andrew Figueroa, Matthew Connolly, Edie Fost, Gina Roma, Jake Fonseca, Ido Levy, Michele Payne, Ryan Schenkel, Amir Malki, Lion Schneider, Aniruddha Narkhede, Shekeba Moshref, Alexandra Kisin, Olga Dodin, Bill Rippon, Henry Wrieth, John Ganci, Johnny Colino, Donna Habeger-Rose, Rakesh Pandey, Aditya Gidh, Aditya Gaur, Dennis Patterson, Samsuddin Salmani, Rambilas Varma, Rumana Rumana, Shubham Sharma, Mayank Mishra, Rameswar Panda, Aditya Prasad, Matt Stallone, Gaoyuan Zhang, Yikang Shen, David Cox, Ruchir Puri, Dakshi Agrawal, Drew Thorstensen, Joel Belog, Brent Tang

CoRR, 2024

2022

Best Practices for HPC Workloads on Public Cloud Platforms: A Guide for Computational Scientists to Use Public Cloud for HPC Workloads.

Robert Walkup, Seetharami R. Seelam, Sophia Wen

Proceedings of the ICPE '22: ACM/SPEC International Conference on Performance Engineering, Bejing, China, April 9, 2022

2013

Design for low power and power management in IBM Blue Gene/Q.

Krishnan Sugavanam, Chen-Yong Cher, John A. Gunnels, Ruud A. Haring, Philip Heidelberger, Hans M. Jacobson, Moyra K. McManus, D. P. Paulsen, David L. Satterfield, Yutaka Sugawara, Robert Walkup

IBM J. Res. Dev., 2013

Determination of performance characteristics of scientific applications on IBM Blue Gene/Q.

Constantinos Evangelinos, Robert Walkup, Vipin Sachdeva, Kirk E. Jordan, Hormozd Gahvari, I-Hsin Chung, Michael P. Perrone, Ligang Lu, Lurng-Kuo Liu, Karen A. Magerlein

IBM J. Res. Dev., 2013

2012

Looking under the hood of the IBM blue gene/Q network.

Dong Chen, Noel Eisley, Philip Heidelberger, Sameer Kumar, Amith R. Mamidala, Fabrizio Petrini, Robert M. Senger, Yutaka Sugawara, Robert Walkup, Burkhard D. Steinmacher-Burow, Anamitra R. Choudhury, Yogish Sabharwal, Swati Singhal, Jeffrey J. Parker

Proceedings of the SC Conference on High Performance Computing Networking, 2012

2011

Characterization of the Communication Patterns of Scientific Applications on Blue Gene/P.

Pier Giorgio Raponi, Fabrizio Petrini, Robert Walkup, Fabio Checconi

Proceedings of the 25th IEEE International Symposium on Parallel and Distributed Processing, 2011

2008

BlueGene/L applications: Parallelism On a Massive Scale.

Bronis R. de Supinski, Martin Schulz, Vasily V. Bulatov, William H. Cabot, Bor Chan, Andrew W. Cook, Erik W. Draeger, James N. Glosli, Jeffrey A. Greenough, Keith W. Henderson, Alison Kubota, Steve Louis, Brian J. Miller, Mehul V. Patel, Thomas E. Spelce, Frederick H. Streitz, Peter L. Williams, Robert K. Yates, Andy Yoo, George Almási, Gyan Bhanot, Alan Gara, John A. Gunnels, Manish Gupta, José E. Moreira, James C. Sexton, Robert Walkup, Charles Archer, François Gygi, Timothy C. Germann, Kai Kadau, Peter S. Lomdahl, Charles A. Rendleman, Michael L. Welcome, William McLendon, Bruce Hendrickson, Franz Franchetti, Stefan Kral, Juergen Lorenz, Christoph W. Überhuber, Edmond Chow, Ümit V. Çatalyürek

Int. J. High Perform. Comput. Appl., 2008

Large-scale gyrokinetic particle simulation of microturbulence in magnetically confined fusion plasmas.

Stéphane Ethier, William M. Tang, Robert Walkup, Leonid Oliker

IBM J. Res. Dev., 2008

Next-Generation Performance Counters: Towards Monitoring Over Thousand Concurrent Events.

Valentina Salapura, Karthik Ganesan, Alan Gara, Michael Gschwind, James C. Sexton, Robert Walkup

Proceedings of the IEEE International Symposium on Performance Analysis of Systems and Software, 2008

2007

WRF nature run.

John Michalakes, Josh Hacker, Richard Loft, Michael O. McCracken, Allan Snavely, Nicholas J. Wright, Thomas E. Spelce, Brent C. Gorda, Robert Walkup

Proceedings of the ACM/IEEE Conference on High Performance Networking and Computing, 2007

2006

Exploiting Workload Parallelism for Performance and Power Optimization in Blue Gene.

Valentina Salapura, Robert Walkup, Alan Gara

IEEE Micro, 2006

MPI tools and performance studies - MPI performance analysis tools on Blue Gene/L.

I-Hsin Chung, Robert Walkup, Hui-Fang Wen, Hao Yu

Proceedings of the ACM/IEEE SC2006 Conference on High Performance Networking and Computing, 2006

A study of MPI performance analysis tools on Blue Gene/L.

I-Hsin Chung, Robert Walkup, Hui-Fang Wen, Hao Yu

Proceedings of the 20th International Parallel and Distributed Processing Symposium (IPDPS 2006), 2006

2005

Blue Gene/L performance tools.

Xavier Martorell, Nils Smeds, Robert Walkup, José R. Brunheroto, George Almási, John A. Gunnels, Luiz De Rose, Jesús Labarta, Francesc Escalé, Judit Giménez, Harald Servat, José E. Moreira

IBM J. Res. Dev., 2005

Optimizing task layout on the Blue Gene/L supercomputer.

Gyan Bhanot, Alan Gara, Philip Heidelberger, Eoin Lawless, James C. Sexton, Robert Walkup

IBM J. Res. Dev., 2005

Scaling physics and material science applications on a massively parallel Blue Gene/L system.

George Almási, Gyan Bhanot, Alan Gara, Manish Gupta, James C. Sexton, Robert Walkup, Vasily V. Bulatov, Andrew W. Cook, Bronis R. de Supinski, James N. Glosli, Jeffrey A. Greenough, François Gygi, Alison Kubota, Steve Louis, Thomas E. Spelce, Frederick H. Streitz, Peter L. Williams, Robert K. Yates, Charles Archer, José E. Moreira, Charles A. Rendleman

Proceedings of the 19th Annual International Conference on Supercomputing, 2005

Early Experience with Scientific Applications on the Blue Gene/L Supercomputer.

George Almási, Gyan Bhanot, Dong Chen, Maria Eleftheriou, Blake G. Fitch, Alan Gara, Robert S. Germain, John A. Gunnels, Manish Gupta, Philip Heidelberger, Michael Pitman, Aleksandr Rayshubskiy, James C. Sexton, Frank Suits, Pavlos Vranas, Robert Walkup, T. J. Christopher Ward, Yuriy Zhestkov, Alessandro Curioni, Wanda Andreoni, Charles Archer, José E. Moreira, Richard Loft, Henry M. Tufo, Theron Voran, Katherine Riley

Proceedings of the Euro-Par 2005, Parallel Processing, 11th International Euro-Par Conference, Lisbon, Portugal, August 30, 2005

2004

Unlocking the Performance of the BlueGene/L Supercomputer.

George Almási, Siddhartha Chatterjee, Alan Gara, John A. Gunnels, Manish Gupta, Amy Henning, José E. Moreira, Robert Walkup

Proceedings of the ACM/IEEE SC2004 Conference on High Performance Networking and Computing, 2004

1996

Hierarchical Decomposition: a Parallel Implementation of the Barnes-Hut Tree Algorithm.

Gyan Bhanot, James Janak, Robert Walkup, Vijay Sonnad

Int. J. High Speed Comput., 1996