Rapid Cybersecurity Skills Assessment, PNNL-SA-190113, R. J. Callahan, K.J. Roche, K.L. Pierce, R.M. Eichler West, F.E. Powers, and A.R. Adame, National Security Seminar Series, Pacific Northwest National Laboratory, Richland, Washington (9/2023)

HPC Discussion / Issues - Input for NSAC LRP, PNNL-SA-181233, Nuclear Structure, Reactions, and Astrophysics Town Hall, US Department of Energy Office of Nuclear Physics, Nuclear Science Advisory Committee Meeting (November 14-16), Argonne National Laboratory, Argonne, Illinois (11/2022)

Introduction to HPC IO, Plasma Surface Interface SciDAC, US Department of Energy Offices of Fusion Energy Sciences and Advanced Scientific Computing Research, Seattle, Washington [see also Technical Report PNNL-33545] (8/2022)

Programming the superfluid DFT on leadership-class supercomputers, Symposium on Time Dependent Superfluid Density Functional Theory and Supercomputing: Latest Developments and Challenges, The Platform for Advanced Scientific Computing - PASC21, Association for Computing Machinery (ACM) and the Swiss National Supercomputing Centre (CSCS), Geneva, Switzerland (7/2021)

KSOME Capture Radius Study, Plasma Surface Interface SciDAC, US Department of Energy Offices of Fusion Energy Sciences and Advanced Scientific Computing Research, Seattle, Washington (6/2021)

(w/ Giridhar Nandipati) KSOME Baseline Performance Benchmark Simulating Irradiation Damage, Plasma Surface Interface SciDAC, US Department of Energy Offices of Fusion Energy Sciences and Advanced Scientific Computing Research, Seattle, Washington (10/2020)

(w/ Giridhar Nandipati, Wahyu Setyawan, Brian Wirth, Karl Hammond) Effect of Helium Flux on Helium Accumulation in Near-Surface Tungsten (poster), 2019 Scientific Discovery through Advanced Computing Principal Investigator (PI) Meeting, Sponsored by the U.S. Department of Energy Office of Advanced Scientific Computing Research, Rockville, MD (7/2019)

Exascale Computing Project Application Assessment (poster), US Department of Energy Exascale Computing Project 2nd Annual Meeting, Knoxville, Tennessee (2/2018)

Classical Computing, Quantum Computing Interface for Nuclear Physics, Institute for Nuclear Theory -Program on Quantum Computing for Nuclear Physics (INT-17-66W), Sponsored by the US Department of Energy Offices of Nuclear Physics and Advanced Scientific Computing Research, Seattle, Washington (11/2017)

Optimizing LAMMPS for GPU-based Leadership Computing, Advancing Understanding in Fission Gas Behavior in Nuclear Fuel through Leadership Computing, US Department of Energy Offices of Nuclear Energy and Advanced Scientific Computing Research, Seattle, Washington (8/2016)

Innovative Computing, 25 Years of the Innovative Computing Laboratory, University of Tennessee, Knoxville, TN (4/2015)

Soap Film Bridges are Cool, Sixth Pacific-Coast Variational Conference - PCVC, Seattle, WA (2/2015)

(w/ Giridhar Nandipati) Object Kinetic Monte Carlo HPC Implementation, Argonne National Laboratory, Argonne, Il (1/2015)

LAMMPS discussion of GPU use on Titan, Argonne National Laboratory, Argonne, Il (1/2015)

Time-Dependent Superfluids with High Performance Computing, Washington State University, Department of Physics and Astronomy Seminar Series, Pullman, WA (9/2014)

Experiences with DOE SciDAC Computational Science Projects, US National Science Foundation - Theoretical Software and Analysis Tools and Software Integration for Scattering Science, University of Washington, Seattle, WA (1/2014)

PSI SciDAC 3 DOE SC FES / ASCR Collaboration: OKMC & GPU processing, American Physical Society Meeting, Denver, CO (11/2013)

Update on algorithm developments for advanced computing environments: OKMC, DFT, PSI Materials Physics Working Group Meeting on Helium Bubble Agglomeration Kinetics, US Department of Energy Offices of Fusion Energy Sciences and Advanced Scientific Computing Research, Sante Fe, NM (2/2013)

Performance Modeling and Metrics, Exascale PI Meeting, US Department of Energy, Arlington VA (10/2012)

IMPROVING COMPUTATIONAL EFFECTIVENESS METRIC - FY11 RESULTS, Fall 2011 Advanced Scientific Computing Advisory Committee (ASCAC) Meeting, American Geophysical Union - 2000 Florida Avenue, NW, Washington, DC, (11/2011)

Getting Up to Speed with US DOE's Exascale Computing Effort(s) (seminar), Institute for Nuclear Theory -Program on Extreme Computing and its Implications for the Nuclear Physics / Applied Mathematics / Computer Science Interface, PNNL-SA-83055, Seattle, WA (7/2011)

Time-dependent approach to nuclear systems: complexity of the SLDA, PNNL-SA-83187, Universal Nuclear Energy Density Functional All Hands Meeting, US Department of Energy Offices of Nuclear Physics and Advanced Scientific Computing Research, East Lansing, MI (6/2011)

Data Intensive Analysis: Computing Case Study from Low-Energy Nuclear Theory, invited presentation to Dr. Astuto Suzuki -Director General of Japan's KEK facility on discussions regarding the Fukushima nuclear disaster, PNNL- SA-80383, Richland, WA (6/2011)

Computing SLDA, Extension to Exascale Computing: nuclear structure, reactions, fission, neutron stars and dynamics of superfluids (poster), PNNL-SA-77727, US Department of Energy Office of Advanced Scientific Computing Research - Poster Session, Richland, WA (2/2011)

US DOE SC ASCR Software Effectiveness SC GG 3.1/2.5.2 Improve Computational Science Capabilities, invited presentation at the US Department of Energy Headquarters, Germantown, MD (12/2010)

(w/ Douglas Kothe) Report on Joule Code Improvements, Advanced Scientific Computing Advisory Committee (ASCAC), American Geophysical Union - 2000 Florida Avenue NW , Washington, DC. (4/2010)

(w/ Douglas Kothe), The ASCR Joule Metric for Computational Effectiveness: An Application Performance Challenge and Opportunity, 2009 SciDAC PI Meeting, US Department of Energy Office of Science, San Diego, CA (6/2009)

(w/Aurel Bulgac, Piotr Magierski) Computing Time Dependent Density Functional Theory for Superfluid Systems, Universal Nuclear Energy Density Functional All Hands Meeting, US Department of Energy Offices of Nuclear Physics and Advanced Scientific Computing Research, Pack Forest, WA (7/2008)

(w/Goran Arbanas, Arthur Kerman), HPC in Statistical Theories of Nuclear Reactions, Universal Nuclear Energy Density Functional All Hands Meeting, US Department of Energy Offices of Nuclear Physics and Advanced Scientific Computing Research, Pack Forest, WA (07/2008)

(w/Goran Arbanas, Carlos Bertulani, David Dean, Arthur Kerman) Statistical Theories of Nuclear Reactions, Hokudai-EFES-TORIJIN-JUSTIPEN Meeting on Resonances and Continua, Onuma Park, Hokkaido, Japan (7/2008)

Building a Universal Nuclear Energy Density Functional (poster), 2008 SciDAC PI Meeting, US Department of Energy Office of Science, Seattle, WA (7/2008)

(w/ Aurel Bulgac, David Dean, Piotr Magierski, Yongle Yu) 1-Superfluid local density approximation , 2-Coupled Cluster US DOE Panel Review of SciDAC UNEDF Application Project, US Department of Energy Headquarters, Germantown, MD (4/2008)

FY04 - FY07 Review of SC GG 3.1/2.5.2 Improve Computational Science Capabilities (exercising ASCR's OMB Joule software metric), U.S. Department of Energy Headquarters, Germantown, MD (11/2007)

(http://cscads.rice.edu/talk07-Ken-Roche.pdf) Universal Nuclear Energy Density Functional: Comments on Some Perceived Software Issues and Opportunities for Collaboration, Workshop on Libraries and Algorithms for Petascale Applications, US Department of Energy Center for Scalable Application Development, Snowbird, UT (7/2007)

(panelist) Perspectives on Hardware and Software Infrastructure, 2005 SciDAC PI Meeting, US Department of Energy Office of Science, San Francisco, CA (6/2005)

(http://quark.phy.bnl.gov/www/scidac/allhands04.html) Perspectives on Scientific Discovery through Advanced Computing, US Lattice Quantum Chromodynamics All Hands Meeting, Brookhaven National Laboratory (4/2004)

(for Dr. Raymond Orbach, Director - US Department of Energy Office of Science) Impact of High End Computing on Research in Physics, American Physical Society Meeting, Montreal, Canada (3/2004)

LAPACK for Clusters and SANS, National Science Foundation's (NSF) National Partnership for the Advancement of Computational Infrastructure (NPACI) All Hands Meeting, San Diego Supercomputing Center, San Diego, CA (3/2003)

(w/ Jack Dongarra) LAPACK for Clusters, Supercomputing (SC02), IEEE Computer Society, ACM SIGARCH, Baltimore, MD (11/2002)

Self-Adaptive Software, Parallel Tools (PTOOLS) Consortium 2002 Annual Meeting, Sponsored by US Department of Defense and US Department of Energy, Knoxville, TN (09/2002)

Confidentiality and Network Access Agreement (NAG) for the X1 System, CRAY Inc., Mendota Heights, MN ; work on the Cray mathematics software for the X1 and X1E vector architectures (1999-2002)

Tutorials on the Beowulf Computing System, US Department of the Navy, U.S. Naval Academy, Annapolis, MD (contact: Reza Malek-Madani, Math Department USNA) (2002)

Performance tune the ASCI Q computing system, (visiting scientist), CCN-7 High Performance Computing Division, Los Alamos National Laboratory, Los Alamos, NM (2002)

LAPACK for Clusters: Results of a Preliminary Case Study (poster), The Conference on High Speed Computing (Salishan), US Department of Energy National Nuclear Security Administration, Gleneden Beach, OR (4/2002)