James H. Laros

Scalable Computer Architecture

Author profile picture

Scalable Computer Architecture

jhlaros@sandia.gov

(505) 845-8532

Sandia National Laboratories, New Mexico
 P.O. Box 5800
 Albuquerque, NM 87185-1319

Biography

James H. Laros III is a Distinguished Member of Technical staff at Sandia National Laboratories. Over his more than 30-year career to date, James has served the United States of America in a number of capacities beginning with four years active duty in the United States Air Force followed by a year in the Air National Guard. James continued his service as a civilian as part of the Strategic Defense Initiative program in Colorado working as a Systems Analyst. James began working at Sandia in 1995 where he has focused on various technical disciplines related to High Performance Computing (HPC) including Hierarchical Mass Storage, file-systems, systems management and systems software, Reliability Availability and Serviceability (RAS) systems and light-weight kernel operating systems. Over the past ten years James has focused on technical leadership in the area of HPC platform architecture. James currently leads many programs including: Vanguard Advanced Architecture Prototype program, Astra Chief Architect and project lead, the Alliance for Extreme Scale Computing (ACES) Crossroads lead architect and deputy program manager, and the Advanced Architecture Testbed program lead. James has won numerous awards including three R&D100 awards.

Education

  • Masters of Science Computer Engineering, University of New Mexico, Albuquerque NM – 2012
  • Bachelors of Science Computer Science. Chapman University, Orange County California – 1998. Cum-Laude, Gray Key
  • Associates in Applied Science Drafting and Design Technology. Northampton County Area Community College, Bethlehem Pennsylvania – 1982

Publications

  • Grant, R., Olivier, S.L., Laros, J.H., Brightwell, R.B., Porterfield, A.K., & Porterfield, A.K. (2014). Metrics for evaluating energy saving techniques for resilient HPC systems [Conference]. Proceedings – IEEE 28th International Parallel and Distributed Processing Symposium Workshops, IPDPSW 2014. https://doi.org/10.1109/IPDPSW.2014.91 Publication ID: 36995
  • Grant, R., Olivier, S.L., Laros, J.H., Brightwell, R.B., & Brightwell, R.B. (2014). Metrics for Evalua0ng Energy Saving Techniques for Resilient HPC Systems [Conference]. https://www.osti.gov/biblio/1145896 Publication ID: 40789
  • Laros, J.H., Ang, J.A., & Ang, J.A. (2014). Sandia’s ASC Advanced Architecture Test Beds [Presentation]. https://www.osti.gov/biblio/1709001 Publication ID: 40665
  • Laros, J.H., Kelly, S.M., Pedretti, K., Grant, R., Levenhagen, M., Olivier, S.L., & Olivier, S.L. (2014). Addressing Power/Energy Challenges for Extreme Scale HPC [Presentation]. https://www.osti.gov/biblio/1700644 Publication ID: 40474
  • Kelly, S.M., Laros, J.H., & Laros, J.H. (2014). A Use Case Approach to Deriving Power API Requirements [Conference]. https://www.osti.gov/biblio/1141670 Publication ID: 40216
  • Dosanjh, M.G.F., Kelly, S.M., Laros, J.H., Vaughan, C.T., & Vaughan, C.T. (2014). An Evaluation of BitTorrent’s Performance In HPC Environments [Conference]. https://doi.org/10.1145/2612262.2612269 Publication ID: 40128
  • Dosanjh, M.G.F., Kelly, S.M., Laros, J.H., Vaughan, C.T., & Vaughan, C.T. (2014). An Evaluation of BitTorrent’s Performance In HPC Environments [Conference]. https://doi.org/10.1145/2612262.2612269 Publication ID: 36838
  • Laros, J.H., Kelly, S.M., & Kelly, S.M. (2013). Power/energy use cases for high performance computing. https://doi.org/10.2172/1121915 Publication ID: 32021
  • Laros, J.H., Pedretti, K., & Pedretti, K. (2013). Qualification for PowerInsight accuracy of power measurements. https://doi.org/10.2172/1121972 Publication ID: 36588
  • Kelly, S.M., Laros, J.H., & Laros, J.H. (2013). A Use Case Approach to Deriving Power API Requirements [Presentation]. https://www.osti.gov/biblio/1673672 Publication ID: 36505
  • Kelly, S.M., Laros, J.H., Vaughan, C.T., & Vaughan, C.T. (2013). An Evaluation of BitTorrent’s Performance In HPC Enviroments [Conference]. https://www.osti.gov/biblio/1115054 Publication ID: 36287
  • Trott, C.R., Hammond, S., Kelly, S.M., Laros, J.H., Ang, J.A., & Ang, J.A. (2013). Performance on Advanced Systems Test Beds [Presentation]. https://www.osti.gov/biblio/1673264 Publication ID: 36053
  • Laros, J.H. (2013). Power Energy and High Performance Computing [Presentation]. https://www.osti.gov/biblio/1666345 Publication ID: 35319
  • Pedretti, K., Laros, J.H., & Laros, J.H. (2013). Hobbes Power and Energy [Presentation]. https://www.osti.gov/biblio/1662056 Publication ID: 35197
  • Laros, J.H. (2013). Power Energy and High Performance Computing [Presentation]. https://www.osti.gov/biblio/1663276 Publication ID: 35075
  • Hammond, S., Barrett, R.F., Vaughan, C.T., Trott, C.R., Laros, J.H., Kelly, S.M., Ang, J.A., & Ang, J.A. (2013). NNSA/ASC Test Bed Update [Presentation]. https://www.osti.gov/biblio/1664732 Publication ID: 34965
  • Stearley, J., Vandyke, J.P., Ferreira, K.B., Laros, J.H., & Laros, J.H. (2013). Investigating an API for resilient exascale computing. https://doi.org/10.2172/1096503 Publication ID: 33479
  • Hammond, S., Rajamanickam, S., Ang, J.A., Barrett, R.F., Doerfler, D.W., Heroux, M.A., Laros, J.H., & Laros, J.H. (2013). Experiences with Xeon Phi [Conference]. https://www.osti.gov/biblio/1067550 Publication ID: 32320
  • Barrett, R.F., Laros, J.H., Hammond, S., & Hammond, S. (2013). Using Miniapplications in a Mantevo Framework for Optimizing Sandia’s SPARC CFD Code on Multi-Core Many-Core and GPU-Accelerated Platforms [Conference]. https://www.osti.gov/biblio/1072578 Publication ID: 31287
  • Hammond, S., Laros, J.H., & Laros, J.H. (2012). Using Miniapplications in a Mantevo Framework for Optimizing Sandia’s SPARC CFD Code on Multi-Core Many-Core and GPU-Accelerated Compute Platforms [Conference]. https://www.osti.gov/biblio/1072648 Publication ID: 26607
  • Hammond, S., Ang, J.A., Barrett, R.F., Doerfler, D.W., Heroux, M.A., Laros, J.H., & Laros, J.H. (2012). Early Experiences with Co-Design [Conference]. https://www.osti.gov/biblio/1062279 Publication ID: 30504
  • Ang, J.A., Kelly, S.M., Hammond, S., Barrett, R.F., Levenhagen, M., Rodrigues, A., Pedretti, K., Laros, J.H., & Laros, J.H. (2012). Early Experiences with Intel MIC Architecture [Conference]. https://www.osti.gov/biblio/1061191 Publication ID: 30187
  • Ang, J.A., Hammond, S., Barrett, R.F., Levenhagen, M., Rodrigues, A., Pedretti, K., Laros, J.H., Kelly, S.M., & Kelly, S.M. (2012). Early Experiences with Intel MIC Architcture [Presentation]. https://www.osti.gov/biblio/1650316 Publication ID: 28581
  • Hammond, S., Ang, J.A., Barrett, R.F., Laros, J.H., Doerfler, D.W., Heroux, M.A., Trott, C.R., Crozier, P., & Crozier, P. (2012). Early Experiences with Heterogeneous Compute [Conference]. https://www.osti.gov/biblio/1064134 Publication ID: 28534
  • Ang, J.A., Laros, J.H., Kelly, S.M., Pedretti, K., & Pedretti, K. (2012). Sandia Advanced Architecture Testbeds [Presentation]. https://www.osti.gov/biblio/1650299 Publication ID: 28524
  • Laros, J.H., Pedretti, K., Kelly, S.M., Vaughan, C.T., & Vaughan, C.T. (2012). Energy Based Performance Tuning for Large Scale High Performance Computing Systems [Conference]. https://www.osti.gov/biblio/1067589 Publication ID: 28328
  • Laros, J.H., Ang, J.A., Kelly, S.M., & Kelly, S.M. (2012). Sandia Advanced Technology Test Bed Project [Conference]. https://www.osti.gov/biblio/1067695 Publication ID: 28260
  • Kelly, S.M., Ang, J.A., Laros, J.H., & Laros, J.H. (2012). Providing Test Beds for Exascale Explorations – Intro Slides [Conference]. https://www.osti.gov/biblio/1140989 Publication ID: 27469
  • Laros, J.H. (2012). Towards High Performance Computing Application Energy Efficiency [Conference]. https://www.osti.gov/biblio/1067650 Publication ID: 27818
  • Kelly, S.M., Ang, J.A., Laros, J.H., & Laros, J.H. (2012). Providing Test Beds for Exascale Explorations – Technical Talk Slides [Conference]. https://www.osti.gov/biblio/1140814 Publication ID: 27678
  • Laros, J.H. (2012). Towards High Performance Computing Application Energy Efficiency [Conference]. https://www.osti.gov/biblio/1067547 Publication ID: 27641
  • Laros, J.H. (2012). Towards High Performance Computing Application Energy Efficiency [Conference]. https://www.osti.gov/biblio/1067819 Publication ID: 27571
  • Kelly, S.M., Laros, J.H., & Laros, J.H. (2012). A peer-to-peer architecture for supporting dynamic shared libraries in large-scale systems [Conference]. https://www.osti.gov/biblio/1067627 Publication ID: 27557
  • Laros, J.H., Pedretti, K., Kelly, S.M., Vaughan, C.T., & Vaughan, C.T. (2012). Towards High Performance Computing Application Energy Efficiency [Presentation]. https://www.osti.gov/biblio/1657043 Publication ID: 27270
  • Laros, J.H. (2012). Towards High Performance Computing Application Energy Efficiency [Conference]. https://www.osti.gov/biblio/1068453 Publication ID: 27086
  • Barrett, B., Kelly, S.M., Klundt, R.A., Laros, J.H., Leung, V.J., Levenhagen, M., Lofstead, G.F., Moreland, K., Oldfield, R., Pedretti, K.T.T., Rodrigues, A., Barrett, R.F., Thompson, D., Ward, H.L., Vandyke, J.P., Vaughan, C.T., Wheeler, K.B., Brandt, J.M., Brightwell, R.B., … Hemmert, K.S. (2012). Report of experiments and evidence for ASC L2 milestone 4467 : demonstration of a legacy application’s path to exascale. https://doi.org/10.2172/1039013 Publication ID: 27001
  • Kelly, S.M., Ang, J.A., Laros, J.H., & Laros, J.H. (2012). Advanced Architecture Test Beds [Conference]. https://www.osti.gov/biblio/1068411 Publication ID: 26985
  • Barrett, B., Kelly, S.M., Klundt, R.A., Laros, J.H., Leung, V.J., Levenhagen, M., Lofstead, G.F., Moreland, K., Oldfield, R., Pedretti, K., Rodrigues, A., Barrett, R.F., Ward, H.L., Vandyke, J.P., Vaughan, C.T., Wheeler, K.B., Brandt, J.M., Brightwell, R.B., Curry, M.L., … Hemmert, K.S. (2012). Demonstration of a Legacy Application’s Path to Exascale – ASC L2 Milestone 4467 [Presentation]. https://www.osti.gov/biblio/1688616 Publication ID: 26984
  • Laros, J.H., Pedretti, K., Kelly, S.M., Vaughan, C.T., & Vaughan, C.T. (2012). Enhancements to Red Storm and Catamount to Increase Power Efficiency During Application Execution [Conference]. https://www.osti.gov/biblio/1068325 Publication ID: 26979
  • Laros, J.H. (2012). Measuring and Tuning Energy Efficiency on Large Scale High Performance Computing Platforms [Conference]. https://www.osti.gov/biblio/1145263 Publication ID: 26729
  • Lofstead, G.F., Oldfield, R., Curry, M.L., Laros, J.H., & Laros, J.H. (2012). Valuing and Managing Data Based on Embodied Energy [Presentation]. https://www.osti.gov/biblio/1657434 Publication ID: 26195
  • Kelly, S.M., Ballance, R.A., Brightwell, R.B., Laros, J.H., Minnich, R.G., & Minnich, R.G. (2011). System Software Working Group [Conference]. https://www.osti.gov/biblio/1111613 Publication ID: 25402
  • Laros, J.H., Pedretti, K., Kelly, S.M., Vaughan, C.T., & Vaughan, C.T. (2011). Energy Based Performance Tuning for Large Scale High Performance Computing Systems [Conference]. https://www.osti.gov/biblio/1106890 Publication ID: 24659
  • Ferreira, K.B., Oldfield, R., Stearley, J., Laros, J.H., Pedretti, K.T.T., Brightwell, R.B., & Brightwell, R.B. (2011). Keeping checkpoint/restart viable for exascale systems. https://doi.org/10.2172/1029780 Publication ID: 24490
  • Laros, J.H. (2011). Measuring and tuning energy efficiency on large scale high performance computing platforms. https://doi.org/10.2172/1035312 Publication ID: 23973
  • Pedretti, K., Brightwell, R.B., Doerfler, D.W., Hemmert, K.S., Laros, J.H., & Laros, J.H. (2011). The Impact of Injection Bandwidth Performance on Application Scalability [Conference]. https://www.osti.gov/biblio/1107219 Publication ID: 23473
  • Kelly, S.M., Laros, J.H., & Laros, J.H. (2011). Shared Libraries on a Capability Class Computer [Conference]. https://www.osti.gov/biblio/1143931 Publication ID: 22836
  • Kelly, S.M., Laros, J.H., & Laros, J.H. (2011). Shared Libraries on a Capability Class Computer Presentation [Conference]. https://www.osti.gov/biblio/1143909 Publication ID: 22837
  • Ferreira, K.B., Stearley, J., Laros, J.H., Oldfield, R., Pedretti, K., Brightwell, R.B., Bridges, P.G., & Bridges, P.G. (2011). Evaluating the Viability of Process Replication Reliability for Exascale Systems [Conference]. https://www.osti.gov/biblio/1108309 Publication ID: 22405
  • Ferreira, K.B., Oldfield, R., Stearley, J., Laros, J.H., Pedretti, K.T.T., Brightwell, R.B., & Brightwell, R.B. (2011). rMPI : increasing fault resiliency in a message-passing environment. https://doi.org/10.2172/1012733 Publication ID: 22333
  • Ferreira, K.B., Stearley, J., Oldfield, R., Laros, J.H., Pedretti, K.T.T., Brightwell, R.B., & Brightwell, R.B. (2010). Redundant computing for exascale systems. https://doi.org/10.2172/1011662 Publication ID: 21076
  • Laros, J.H. (2010). Affecting application energy use on high performance computers [Conference]. https://www.osti.gov/biblio/1031891 Publication ID: 20772
  • Ferreira, K.B., Riesen, R., Oldfield, R., Laros, J.H., Pedretti, K., Stearley, J., Brightwell, R.B., & Brightwell, R.B. (2010). rMPI : increasing fault resiliency in a message-passing environment [Conference]. https://www.osti.gov/biblio/1002112 Publication ID: 17926
  • Oldfield, R., Brightwell, R.B., Pedretti, K., Riesen, R., Ferreira, K.B., Kelly, S.M., Laros, J.H., & Laros, J.H. (2010). System Software Research for Extreme-Scale Computing [Presentation]. https://www.osti.gov/biblio/1673292 Publication ID: 17560
  • Ferreira, K.B., Oldfield, R., Stearley, J., Laros, J.H., Pedretti, K.T.T., Brightwell, R.B., & Brightwell, R.B. (2009). Increasing fault resiliency in a message-passing environment. https://doi.org/10.2172/1001015 Publication ID: 16893
  • Laros, J.H., Kelly, S.M., Levenhagen, M., Pedretti, K.T.T., & Pedretti, K.T.T. (2009). Investigating methods of supporting dynamically linked executables on high performance computing platforms. https://doi.org/10.2172/1035350 Publication ID: 16641
  • Ferreira, K.B., Riesen, R., Oldfield, R., Brightwell, R.B., Laros, J.H., Pedretti, K., & Pedretti, K. (2009). HPC application fault-tolerance using transparent redundant computation [Conference]. https://www.osti.gov/biblio/971418 Publication ID: 16599
  • Laros, J.H. (2007). Experiences with IO Performance Analysis on Red Storm [Conference]. https://www.osti.gov/biblio/1148200 Publication ID: 9882
  • Laros, J.H., Ward, H.L., Kelly, S.M., Kellogg, B.R., Tomkins, J.L., & Tomkins, J.L. (2007). Red Storm IO Performance Analysis [Conference]. https://www.osti.gov/biblio/1148207 Publication ID: 9849
  • Laros, J.H. (2006). A Minimal Linux Environment for High Performance Computing Systems (Presentation) [Conference]. https://www.osti.gov/biblio/1264567 Publication ID: 7546
  • Laros, J.H. (2006). A software and hardware architecture for a modular, portable, extensible reliability availability and serviceability system [Conference]. https://www.osti.gov/biblio/900019 Publication ID: 6518
  • Laros, J.H. (2004). Future directions in cluster system software [Conference]. https://www.osti.gov/biblio/876260 Publication ID: 2946
  • Laros, J.H., Ward, H.L., & Ward, H.L. (2003). Implementing scalable disk-less clusters using the Network File System (NFS) [Conference]. https://www.osti.gov/biblio/1005419 Publication ID: 2642
  • Laros, J.H., Ward, H.L., Dauchy, N.W., Vasak, J.S., Klundt, R.A., Laguna, G.A., Epperson, M., Stearley, J., & Stearley, J. (2003). The Cluster Integration Toolkit (CIT) : an extensible, portable, scalable cluster management software implementation [Conference]. https://www.osti.gov/biblio/923559 Publication ID: 2032
Showing 10 of 64 publications.

Awards & Recognition

2020

Ryan Grant, Simon David Hammond, James H. Laros, , Stephen Lecler Olivier, Kevin Pedretti, Harry Lee Ward, Andrew J Younge, Andrew J Younge, , , , Enabling Power Measurement and Control on Astra: The First Petascale Arm Supercomputer, Conference, Cray Users' Group Annual Technical Conference (CUG'20), October 28, 2020

2019

James H. Laros, David J. Martinez, Jeffry Brandon Ogden, Matthew Leon Curry, Ryan Grant, Kevin Pedretti, Harry Lee Ward, Andrew J Younge, Simon David Hammond, Ruth Ann Klundt, Randall Don Scott, Andrew J Younge, , , , ERA Award - Astra Supercomputer Team, Sandia National Laboratories, The Astra Supercomputer Team procured the world's largest high-performance computing system based on the Arm processor, working on a very aggressive schedule to obtain Sandia's fastest computer, meeting several important programmatic and technical milestones., February 5, 2019

2018

James H. Laros, Kevin Pedretti, Ryan Grant, Stephen Lecler Olivier, , Harry Lee Ward, Andrew J Younge, Andrew J Younge, , , , R&D 100 Award - Power API, R&D 100, November 16, 2018

James H. Laros, Kevin Pedretti, Ryan Grant, Stephen Lecler Olivier, , Harry Lee Ward, Andrew J Younge, Andrew J Younge, , , , R&D 100 Special Recognition: Corporate Social Responsibility - Power API, R&D 100, November 16, 2018

James H. Laros, Simon Hammond, Matthew Curry, Robert J. Hoekstra, Ryan Grant, Kevin Pedretti, Harry Lee Ward, Kenneth F. Alvin, Ashley Avallone, Andrew J Younge, Randall Don Scott, Ruth Ann Klundt, Stephen T. Monk, Jesse Hubert Livesay, Jeffry Brandon Ogden, David J. Martinez, Michael J. Aguilar, Robert Wilcox, HPE, Kevin Jameson, , Defense Programs Award of Excellence, Exceptional Achievement, National Nuclear Security Administration, Astra, first petascale Arm Supercomputer, October 1, 2018

2017

James H. Laros, Kevin Pedretti, Anthony Michael Agelastos, Ann C. Gentile, Ryan Grant, Karl Scott Hemmert, Robert J. Hoekstra, , Stephen Lecler Olivier, Christian Robert Trott, David B. Karelitz, Simon Hammond, , 2017 Defense Programs Award of Excellence, National Nuclear Security Administration, Trinity High Performance Computing Team for significant contributions to the Stockpile Stewardship Program, October 1, 2017

2016

James H. Laros, Kevin Pedretti, Suzanne M. Kelly, Michael J. Levenhagen, Ryan Grant, Stephen Lecler Olivier, , Public Good Innovator Award, Sandia National Laboratories, June 1, 2016

2012

James H. Laros, Kevin Pedretti, Suzanne M. Kelly, Courtenay T. Vaughan, Wei Shu, University of New Mexico, , Best Paper, 20th High Performance Computing Symposium, Conference, March 15, 2012

2011

Douglas Doerfler, Sue Kelly, Kevin Pedretti, Jim Laros, Bob Ballance, Ruth Klundt, John Noe, Constantine "Dino" Pavlakos, Joel Stevenson, Paul Lin, Lisa Ice, Courtenay Vaughan, W. Alan Scott, Ron Brightwell, Jim Ang, Sudip Dosanjh, Kenneth Alvin, Brian Barrett, Karen Haskell, K. Scott Hemmert, Joseph Maestas, Susan Mcree, John Naegle, Mahesh Rajan, David Rogers, Sandra Warner, James H. Laros, Andrew D Baczewski, , Employee Recognition Team Award, Sandia National Laboratories, For the dedicated and sustained effort required to bring up the Cielo computer platform and complete acceptance testing within schedule, July 9, 2011

James H. Laros, Kevin T. Pedretti, Suzanne M. Kelly, James A. Ang, Ron Brightwell, John P. Vandyke, Courtenay T. Vaughan, Robert A. Ballance, , , , , , , , , , , 2011 National Nuclear Security Administration Defense Programs Award of Excellence, National Nuclear Security Administration, September 1, 2011

James H. Laros, Kevin T. Pedretti, Suzanne M Kelly, , Individual Performance Award, Organization 01420, August 1, 2011

James H. Laros, Kevin T. Pedretti, Suzanne M. Kelly, John P. Vandyke, Ron Brightwell, Robert B Ballance, , , , , , , , , , , NNSA Environmental Stewardship Award Recipient, National Nuclear Security Administration, March 1, 2011

James H. Laros, , SBIR Award Panel, Department of Energy, ASCR, February 8, 2011

2010

Bob Ballance, Bob Benner, Courtenay Vaughan, Cynthia Phillips, Gerald Quinlan, Sandia (retired), James H Laros, Jim Tomkins, Sandia (retired), John VanDyke, Lee Ann Riesen, Lee Ward, Len Stans, Sandia (retired), Linda Bonnefoy-Lev, Michael Levenhagen, Patricia Brown, Paul Iwanchuk, LANL, Rolf Riesen, Ruth Klundt, Suzanne Kelly, Trammell Hudson, Contractor, Vitus Leung, William J. Camp, Sandia (retired), Vitus J. Leung, , Excellence in Technology Transfer, Federal Laboratory Consortium, Red Storm Massively Parallel Processor, April 29, 2010

James H. Laros, , Defense Programs Award of Excellence, National Nuclear Security Administration , March 1, 2010

James H. Laros, , Excellence in Technology Transfer Award, Federal Laboratory Consortium for Technology Transfer, February 1, 2010

2009

Ronald Brightwell, Kurt Brian Ferreira, Suzanne M. Kelly, James H. Laros, Kevin Pedretti, James Tomkins, John P. Vandyke, Courtenay T. Vaughan, Robert Ballance, Trammell Hudson, , R&D 100 Award, R&D Magazine, One of the 100 Most Technologically Significant New Products of the Year, June 1, 2009

Brian J. Martin, Andrew J Leiker, James H. Laros, Douglas Doerfler, , Best Student Paper, The 10th LCI International Conference on High-Performance Clustered Computing, Conference, March 15, 2009

2006

James H. Laros, , NOVA Award, Lockheed Martin, Red Storm Design and Development Team, February 1, 2006

James H. Laros, , Sandia Meritorious Achievement Award, Sandia National Laboratories, Red Storm Design, Development and Deployment Team, February 1, 2006

1998

James H. Laros, , Sandia Meritorious Achievement Award, Sandia National Laboratories, TeraFLOP Computer Installation Team, February 1, 1998