Software • Stochastic Parallel PARticle Kinetic Simulator SPPARKS is a parallel Monte Carlo code for on-lattice and off-lattice models that includes algorithms for kinetic Monte Carlo (KMC), rejection kinetic Monte Carlo (rKMC), and Metropolis Monte Carlo (MMC). It implements several KMC solvers whose serial computational complexity ranges from O(N) to O(NlogN) to...
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Srideep Musuvathy
Staff Page • Cognitive and Emerging Computing. Biography Dr. Srideep Musuvathy is a Principal Member of Technical Staff in the Center for Computing Research at Sandia National Laboratories. His research focuses on developing algorithms and co-design solutions for autonomous systems. At Sandia, his focus is on both machine learning, and algorithms and software...
Staff Pages
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Standardizing Node Memory Management for HPC
News Article, January 1, 2017 • Computer scientists at Sandia National Laboratories are contributing to standardization of memory management interfaces for HPC applications through the OpenMP Language Committee. The emergence of multiple levels of memory with distinct characteristics (e.g., high bandwidth or persistent storage) is a disruptive technology change presenting both challenges and opportunities for DOE...
Stephen D. Bond
Staff Page • Computational Mathematics. See my expanded staff site.
Stephen Lecler Olivier
Staff Page • Scalable System Software. Biography My research focuses on run time systems and programming models for high performance computing, including issues in productivity, scalability, and power. Much of my work concerns support for efficient multithreading on the supercomputer node level, especially through the task-parallel programming model. I enjoy working with application...
Steve Plimpton Awarded the 2020 SIAM Activity Group on Supercomputing Career Prize
News Article, February 1, 2020 • Steve Plimpton has been awarded the 2020 Society for Industrial and Applied Mathematics (SIAM) 2020 Activity Group on Supercomputing Career Prize. This prestigious award is given every two years to an outstanding researcher who has made broad and distinguished contributions to the field of algorithm development for parallel scientific computing. ...
Stewart Silling received the 2015 Beltyschko Medal
News Article, June 1, 2015 • Stewart Silling was recognized for outstanding and sustained contribution to the field of computational mechanics For developing and demonstrating peridynamics as a new mechanic methodology for modeling fracture and high strain deformation in solids at the Annual Meeting of the US Association for Computational Mechanics in San Diego in July...
Stitch – IO Library for highly localized simulations
Project • IO libraries typically focus on writing the entire simulation domain for each output. For many computation classes, this is the correct choice. However, there are some cases where this approach is wasteful in time and space. The Stitch library was developed initially for use with the SPPARKS kinetic monte carlo...
Stitch 1.0
Software • Progressive data storage IO library. This library enables computing on a small part of the simulation domain at a time and then stitching together a coherent domain view based on a time epoch on request. Initial demonstration is for metal additive manufacturing. Paper at IPDPS 2020: DOI: 10.1109/IPDPS47924.2020.00016
Structural Simulation Toolkit (SST)
Project • High performance computing architectures are undergoing a marked transformation. Increasing performance of the largest parallel machines at the same exponential rate will require that applications expose more parallelism at an accelerated pace due to the advent of multi-core processors at relatively flat clock rates. The extreme number of hardware components...
Subgraph isomorphism in a multithreaded shared memory architecture
Award, September 19, 2012 • Invited Talk, Knox College Computer Science Department.
Suma George Cardwell
Staff Page • Principal Member of Technical Staff. Biography Dr. Suma George Cardwell is a Principal Member of Technical Staff in the Center for Computing Research at Sandia National Laboratories. She completed her PhD and MS in Electrical and Computer Engineering at Georgia Tech, Atlanta in 2015 and 2011 respectively. She has over...
System Software
Focus Area • System software research and development activities provide the software foundation that enables the scaling and performance of applications to unprecedented levels. Sandia has performed pioneering work in lightweight operating system and scalable runtime systems for some of the world's largest computing platforms. Core areas of competency are lightweight operating systems,...
Task mapping for non-contiguous allocations
Award, May 20, 2013 • Invited Talk, Boston University CISE.
Task Mapping Stencil Computations for Non-Contiguous Allocations
Award, April 2, 2014 • Invited Talk, Workshop on New Challenges in Scheduling Theory.
Team Employee Recognition Award
Award, April 22, 2013 • Internal - employee recognition award, Sandia National Laboratories. For demonstrated success in transforming Dakota to a production computational tool in support of Sandia's core NW mission and a growing external...
Team Employee Recognition Award, QCAD
Award, April 15, 2013 • Internal - employee recognition award, Sandia National Labs.
Technical Program Committee
Award, January 4, 2016 – September 24, 2016 • Society/professional leadership, 5th International Conference on Advances in Computing, Communications, and Informatics.
Tenth Space Computing Workshop
News Article, June 1, 2017 • The Center for Computing Research (1400) in collaboration with the Predictive Sensing Systems Group (6770) conducted the 10th annual Spacecraft Computing workshop May 30-June 2, 2017. The workshop, held at Sandia and a local hotel, focused on advanced computing for spacecraft, which require technology that functions reliably in the harsh...
Teresa Portone
Staff Page • Principal Member of the Technical Staff. Biography Teresa joined Sandia in January 2020. Her research focuses on assessing and enhancing model prediction fidelity to inform high-consequence decisions for national security applications, especially in the presence of uncertainty. She has expertise in methods to characterize model-form uncertainty, sensitivity analysis, Bayesian methods,...
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The Next Platform Highlights CCR Work on Memory-Centric Programming
News Article, February 1, 2018 • A recent article from The Next Platform, an online publication that offers in-depth coverage of high-end computing, recently featured an article entitled “New Memory Challenges Legacy Approaches to HPC Code.” The article discusses a paper co-authored by CCR researcher Ron Brightwell that was published last November as part of the...
Thomas E. Voth
Staff Page • Computational Multiphysics. Biography Tom is a member of the Computational Multiphysics Department which is home to the ALEGRA multiphysics application. As a member of the ALEGRA team Tom has lead developments in contact/impact mechanics for explicit dynamics and remesh methods for Arbitrary Lagrangian Eulerian mechanics. Tom is also technical lead...
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