Search

Results 426–450 of 499

Simon Garcia de Gonzalo
Staff Page • Scalable Computer Architecture. Biography Dr. Simon Garcia de Gonzalo is a senior member of technical staff in scalable computer architectures and exascale technologies. Simon currently is part of different projects/teams such as: Vanguard Advanced Architecture Prototype program and the Application Performance Team. Before joining Sandia National Laboratories in 2022 he...

Slycat Enables Synchronized 3D Comparison of Surface Mesh Ensembles
News Article, December 1, 2020 • In support of analyst requests for Mobile Guardian Transport studies, researchers at Sandia National Laboratories have expanded data types for the Slycat ensemble-analysis and visualization tool to include 3D surface meshes.  Analysts can now compare sets of surface meshes using synchronized 3D viewers, in which changing the viewpoint in one...
Here we see 3 cloned viewers for each of 2 runs at timestep 400 (red and blue selected points). The clones are vertically matched between the 2 runs to display the same 3 variables: the cell-based variables of Von Mises and stress along the X-axis, and the first component of the point variable React. The top row is an example of a simulation using the fastest initial velocity value (blue scatterplot point), while the bottom row is an example of the slowest (red scatterplot point).

Slycat™ Expands External Access Through Demonstration Servers
News Article, November 1, 2017 • The demonstration version of the Slycat™ server, Sandia National Laboratories’ open-source ensemble analysis and visualization system, has been released as a Docker container at https://hub.docker.com/r/slycat/slycat-developer/. This distribution provides a fully-functional webserver, preloaded with example Slycat™ models and test data. This release is intended to facilitate broader access to Slycat™ outside...
The windows shows Slycat™ analysis of the cars dataset, one of the 7 different open datasets and data models distributed with the Slycat™ Docker container and available on the myslycat.com website.

Slycat™ Expands User Community to Army Research Laboratory
News Article, June 1, 2017 • Researchers at Sandia National Laboratories just completed an installation of SNL’s open-source ensemble analysis and visualization system, SlycatTM, at the Army Research Laboratory in Aberdeen, Maryland. This is the culmination of a year-long small project with the ARL that also includes a small amount of support funding for the remainder...
Slycat supports a number of analysis types for large ensembles of data including: Canonical Correlation Analysis (CCA) for correlations between sets of variables, sensitivity analysis, and anomaly detection; Time-Series Clustering (shown in figure) that includes shape filtering, discovery of outliers, and mapping output variability to inputs; and Parameter-Space Analysis that enables visual exploration, filtering, multi-objective optimization, and image/video retrieval.

Smart Grid
Focus Area • Electricity grid operators routinely solve optimization problems to address core decision processes at various time-scales, ranging from 5 minutes to multiple decades. Historically, these problems are addressed in terms of deterministic optimization, with resources kept in reserve to address any potential uncertainty regarding the future. In the context of daily...

SmartBlock reusable workflow components
Software • SmartBlock offers a way to compose workflow glue components using generic functionality rather than having to write that code directly. The initial release has examples of a few different operators and how to compose them for different applications and data formats. The underlying transport technology is ADIOS + FlexPath, but...

SNL adds Discontinuous Galerkin visualization capability to EMPIRE and ParaView
News Article, January 1, 2022 • Sandia National Laboratories in collaboration with Kitware, Inc. added new capabilities to store and visualize Discontinuous Galerkin (DG) simulation results using the Exodus/ParaView workflow to support the EMPIRE plasma physics application.  The DG methods employed by EMPIRE were selected because of their natural conservation properties, support of shock capturing methods,...
Electron density of the 2D Triple Point Problem warped in the Z dimension to illustrate the discontinuity between elements.

Software
Page • The CCR collaborates on innovations in tool development, component development, and scalable algorithm research with partners and customers around the world through open source projects. Current software projects focus on enabling technologies for scientific computing in areas such as machine learning, graph algorithms, cognitive modeling, visualization, optimization, large-scale multi-physics simulation,...

Software Development
Focus Area • Through open source projects, we collaborate on innovations in tool development, component development, and scalable algorithm research with partners and customers around the world. Our current software projects focus on machine learning, graph algorithms, cognitive modeling, text analysis, visualization, systems dynamics, and operations research.

Software Engineering & Research
Department • The Software Engineering and Research Department (1424), a new department within the Center for Computing Research, is leading the strategic goal of furthering the substantiation of software engineering as an engineering discipline. This dynamic team of experts conducts fundamental and applied research, development and application in software engineering, design, and...

SparTen
Software • SparTen provides capabilities for computing reduced-dimension representations of sparse multidimensional count value data. The software consists of the data decompositions methods described in published journal papers. These decomposition methods consist of several numerical optimization methods (one based on a multiplicative update iterative approach, one based on quasi-Newton optimization, and one...

SPOT Award
Award, April 24, 2012 • Internal - spot award, Sandia National Laboratories. "For outstanding work in leading the development of Prism and providing training in its use."

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...

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. ...
Steve Plimpton

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...
Mr. Silling with his wife Catherine.

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...
Results 426–450 of 499