Heidi Thornquist

R&D S&E, Computer Science

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R&D S&E, Computer Science

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Biography

Heidi joined Sandia National Laboratories in 2003 and is currently a Principal Member of Technical Staff in the Electrical Models & Simulation Department.  Heidi develops scalable linear solvers for circuit simulation and is a lead developer of the Anasazi eigensolver and Belos linear solver package in the Trilinos Project.  Her recent research is centered around advanced numerical algorithms and software for scalable time-domain and frequency-domain circuit simulation that are targeted to next-generation computing platforms.

Education

Heidi received a B.A. in Mathematics, with a minor in Computer Information Systems, from Cal Poly Humboldt (formerly Humboldt State University) in 1998.  She received her M.A. in Computational and Applied Mathematics from Rice University in 2003, shortly before joining Sandia.  In 2006, advised by Danny C. Sorensen, Heidi received her Ph.D. in Computational and Applied Mathematics from Rice University.

Publications

Eric R. Keiter, Thomas V. Russo, Richard Schiek, Heidi K. Thornquist, Ting Mei, Jason Verley, Karthik Venkatraman Aadithya, Joshua David Schickling, (2022). Xyce Parallel Electronic Simulator Users’ Guide Version 7.6 https://www.osti.gov/search/identifier:1895029 Document ID: 1664143

Eric R. Keiter, Thomas V. Russo, Richard Schiek, Heidi K. Thornquist, Ting Mei, Jason Verley, Karthik Venkatraman Aadithya, Joshua David Schickling, (2022). Xyce Parallel Electronic Simulator Reference Guide, Version 7.6 https://www.osti.gov/search/identifier:1895028 Document ID: 1664145

Celestino A. Corral, Heidi K. Thornquist, (2022). Combined CRC and Bit Framing for Enhanced Error Detection SoutheastCon 2023 Document ID: 1641210

Ariel Eileen Kellison, Andrew Appel, David Bindel, Heidi K. Thornquist, Geoffrey Compton Hulette, (2022). Verification Toolchain for Floating-Point Programs DOE/CSGF 2022 Annual Program Review – Poster Session Document ID: 1573881

Jennifer Ann Loe, Ronald Morgan, Mark Embree, Erik Gunnar Boman, Heidi K. Thornquist, (2022). Polynomial Preconditioning with the GMRES Polynomial Householder Symposium 2022 Document ID: 1540149

Eric R. Keiter, Jason Verley, Heidi K. Thornquist, Paul Allen Kuberry, Edgar Galvan, (2022). Xyce Circuit Simulator and Surrogate Modeling DARPA Microelectronics Access Design Automation Meeting Document ID: 1539546

Eric R. Keiter, Thomas V. Russo, Richard Schiek, Heidi K. Thornquist, Ting Mei, Jason Verley, Karthik Venkatraman Aadithya, Joshua David Schickling, (2022). Xyce Parallel Electronic Simulator Reference Guide, Version 7.5 https://www.osti.gov/search/identifier:1868425 Document ID: 1517013

Eric R. Keiter, Thomas V. Russo, Richard Schiek, Heidi K. Thornquist, Ting Mei, Jason Verley, Karthik Venkatraman Aadithya, Joshua David Schickling, (2022). Xyce Parallel Electronic Simulator Users’ Guide Version 7.5 https://www.osti.gov/search/identifier:1866027 Document ID: 1517014

Sivasankaran Rajamanickam, Alexander Heinlein, Heidi K. Thornquist, Ichitaro Yamazaki, (2021). Trilinos User Group Meeting Solvers Update Trilinos User Group Meeting Document ID: 1403993

Samuel Douglas Pollard, Ariel Kellison, John Matthew Bender, Heidi K. Thornquist, Geoffrey Compton Hulette, (2021). Real(istic) Specifications of Software 2021 Workshop on the Science of Scientific-Software Development and Use Document ID: 1403337

Geoffrey Compton Hulette, John Matthew Bender, Samuel Douglas Pollard, Heidi K. Thornquist, Ariel Kellison, (2021). Formal Methods-based Certification Frameworks for Scientific Computing Applications ASCR Workshop on Cybersecurity and Privacy for Scientific Computing Ecosystems Document ID: 1370309

Eric R. Keiter, Thomas V. Russo, Richard Schiek, Heidi K. Thornquist, Ting Mei, Jason Verley, Peter E. Sholander, Karthik Venkatraman Aadithya, Joshua David Schickling, (2021). Xyce Parallel Electronic Simulator Reference Guide, Version 7.4 https://www.osti.gov/search/identifier:1826862 Document ID: 1370734

Eric R. Keiter, Thomas V. Russo, Richard Schiek, Heidi K. Thornquist, Ting Mei, Jason Verley, Peter E. Sholander, Karthik Venkatraman Aadithya, Joshua David Schickling, (2021). Xyce Parallel Electronic Simulator Users’ Guide Version 7.4 https://www.osti.gov/search/identifier:1829574 Document ID: 1370736

Heidi K. Thornquist, (2021). Adventures of a Mid-Career Mathematician in Radiation & Electrical Sciences Adventures of a Mid-Career Mathematician in Radiation & Electrical Sciences Document ID: 1369250

Eric R. Keiter, Jason Verley, Heidi K. Thornquist, Paul Allen Kuberry, Edgar Galvan, (2021). Xyce Circuit Simulator and Surrogate Modeling DARPA Electronics Resurgence Initiative (ERI) Summit & Microsystems Technology Office (MTO) Symposium Document ID: 1355757

Eric R. Keiter, Thomas V. Russo, Richard Schiek, Heidi K. Thornquist, Ting Mei, Jason Verley, Peter E. Sholander, Karthik Venkatraman Aadithya, (2021). Xyce Parallel Electronic Simulator Reference Guide, Version 7.3 https://www.osti.gov/search/identifier:1821531 Document ID: 1306168

Eric R. Keiter, Thomas V. Russo, Richard Schiek, Heidi K. Thornquist, Ting Mei, Jason Verley, Peter E. Sholander, Karthik Venkatraman Aadithya, (2021). Xyce Parallel Electronic Simulator Users’ Guide Version 7.3 https://www.osti.gov/search/identifier:1810049 Document ID: 1306172

Eric R. Keiter, Thomas V. Russo, Richard Schiek, Heidi K. Thornquist, Ting Mei, Jason Verley, Peter E. Sholander, Karthik Venkatraman Aadithya, (2020). Xyce Parallel Electronic Simulator Reference Guide Version 7.2 https://www.osti.gov/search/identifier:1718980 Document ID: 1230532

Eric R. Keiter, Thomas V. Russo, Richard Schiek, Heidi K. Thornquist, Ting Mei, Jason Verley, Peter E. Sholander, Karthik Venkatraman Aadithya, (2020). Xyce Parallel Electronic Simulator Users’ Guide Version 7.2 https://www.osti.gov/search/identifier:1718981 Document ID: 1230535

Ting Mei, Andy Huang, Heidi K. Thornquist, Peter E. Sholander, Jason Verley, (2020). Prediction of Circuit Response to an Electromagnetic Environment; ASC IC FY20 Milestone 7179 https://www.osti.gov/search/identifier:1663259 Document ID: 1196551

Eric R. Keiter, Thomas V. Russo, Richard Schiek, Heidi K. Thornquist, Ting Mei, Jason Verley, Peter E. Sholander, Karthik Venkatraman Aadithya, (2020). Xyce Parallel Electronic Simulator Users’ Guide Version 7.1 https://www.osti.gov/search/identifier:1763514 Document ID: 1138996

Eric R. Keiter, Thomas V. Russo, Richard Schiek, Heidi K. Thornquist, Ting Mei, Jason Verley, Peter E. Sholander, Karthik Venkatraman Aadithya, (2020). Xyce Parallel Electronic Simulator Reference Guide Version 7.1 https://www.osti.gov/search/identifier:1763515 Document ID: 1138997

Jennifer Ann Loe, Heidi K. Thornquist, Erik Gunnar Boman, (2020). Polynomial Preconditioned GMRES in Trilinos: Practical Considerations for High Performance Computing SIAM Parallel Processing 2020 https://www.osti.gov/search/identifier:1765637 Document ID: 1091883

Heidi K. Thornquist, Shahed Reza, Cheryl Lam, (2020). A Radiation-aware Electrical Multi-Scale Model Based Design Workflow for UQ Propagation and Model Abstraction HEART Conference 2020 Document ID: 1089972

Jennifer Loe, Heidi K. Thornquist, Erik Gunnar Boman, (2019). Polynomial Preconditioned GMRES in Trilinos: Practical Considerations for High-Performance Computing SIAM Conf. on Parallel Processing https://www.osti.gov/search/identifier:1643432 Document ID: 1067934

Jason Verley, Eric R. Keiter, Thomas V. Russo, Richard Schiek, Heidi K. Thornquist, Ting Mei, Peter E. Sholander, Karthik Venkatraman Aadithya, (2019). Latest Developments in the Xyce Large-Scale Analog Circuit Simulator 2019 Workshop on Open-Source EDA Technology https://www.osti.gov/search/identifier:1643112 Document ID: 1055258

Jason Verley, Eric R. Keiter, Heidi K. Thornquist, (2019). Latest Developments in the Xyce Large-Scale Analog Circuit Simulator Workshop on Open-Source EDA Technology (WOSET) 2019 https://www.osti.gov/search/identifier:1642834 Document ID: 1033556

Eric R. Keiter, Karthik Venkatraman Aadithya, Ting Mei, Heidi K. Thornquist, Peter E. Sholander, Ian Zachary Wilcox, (2019). Exploring Advanced Embedded Uncertainty Quantification methods in Xyce https://www.osti.gov/search/identifier:1569158 Document ID: 1031440

Heidi K. Thornquist, (2019). Parallel Simulation of Large-Scale Integrated Circuits Using Xyce SIAM Conference on Parallel Processing for Scientific Computing Document ID: 1020462

Jennifer Ann Loe, Heidi K. Thornquist, Erik Gunnar Boman, (2019). Polynomial Preconditioning for Avoiding Communication in GMRES Preconditioning 2019 https://www.osti.gov/search/identifier:1641026 Document ID: 984898

Eric R. Keiter, Heidi K. Thornquist, Jason Verley, (2019). Xyce: Open Source Simulation for Large-Scale Circuits Government Microcircuit Applications and Critical Technology Conference (GOMAC Tech 2019) https://www.osti.gov/search/identifier:1639584 Document ID: 948024

Joshua Dennis Booth, Nathan David Ellingwood, Heidi K. Thornquist, Sivasankaran Rajamanickam, (2019). Basker: Parallel Sparse LU Factorization utilizing Hierarchical Parallelism and Data Layouts Journal of Parallel Computing https://www.osti.gov/search/identifier:1499033 Document ID: 888204

Eric R. Keiter, Jason Verley, Heidi K. Thornquist, (2019). Xyce: Open Source Simulation for Large-Scale Circuits GOMACTech https://www.osti.gov/search/identifier:1595909 Document ID: 913064

Jason Verley, Eric R. Keiter, Thomas V. Russo, Heidi K. Thornquist, Ting Mei, Peter E. Sholander, Karthik Venkatraman Aadithya, (2018). Xyce: Open Source Simulation for Large-Scale Circuits Workshop on Open-Source EDA Technology (WOSET) https://www.osti.gov/search/identifier:1592352 Document ID: 888940

Eric R. Keiter, Karthik Venkatraman Aadithya, Ting Mei, Thomas V. Russo, Richard Schiek, Peter E. Sholander, Heidi K. Thornquist, Jason Verley, (2018). Xyce Parallel Electronic Simulator Users’ Guide, Version 6.10 https://www.osti.gov/search/identifier:1481539 Document ID: 877927

Eric R. Keiter, Karthik Venkatraman Aadithya, Ting Mei, Thomas V. Russo, Richard Schiek, Peter E. Sholander, Heidi K. Thornquist, Jason Verley, (2018). Xyce Parallel Electronic Simulator Reference Guide, Version 6.10 https://www.osti.gov/search/identifier:1481540 Document ID: 877928

Heidi K. Thornquist, Jennifer A. Loe, Heidi K. Thornquist, Erik Gunnar Boman, (2018). Polynomial Preconditioned GMRES for Communication Reduction The Fifteenth Copper Mountain Conference on Iterative Methods https://www.osti.gov/search/identifier:1592317 Document ID: 738638

Heidi K. Thornquist, (2018). Parallel Simulation Capabilities in Xyce DARPA POSH Visit https://www.osti.gov/search/identifier:1592316 Document ID: 865232

Jason Verley, Eric R. Keiter, Heidi K. Thornquist, (2018). Xyce: Open Source Simulation for Large-Scale Circuits Workshop on Open-Source EDA Technology (WOSET) 2018 https://www.osti.gov/search/identifier:1592255 Document ID: 854722

Eric R. Keiter, Jason Verley, Heidi K. Thornquist, (2018). Xyce: Open Source Simulation for Large-Scale Circuits Government Microcircuit Applications & Critical Technology Conference (GOMAC Tech) Document ID: 865139

Heidi K. Thornquist, Eric R. Keiter, Rajit Manohar, Ting Mei, Karthik Venkatraman Aadithya, Thomas V. Russo, Peter E. Sholander, (2018). AMS Verification Technologies and Flow for Enabling POSH SoCs Electronics Resurgence Initiative Summit https://www.osti.gov/search/identifier:1806792 Document ID: 830256

Eric R. Keiter, Karthik Venkatraman Aadithya, Ting Mei, Thomas V. Russo, Richard Schiek, Peter E. Sholander, Heidi K. Thornquist, Jason Verley, (2018). Xyce Parallel Electronic Simulator Reference Guide, Version 6.9 https://www.osti.gov/search/identifier:1528751 Document ID: 785019

Eric R. Keiter, Karthik Venkatraman Aadithya, Ting Mei, Thomas V. Russo, Richard Schiek, Peter E. Sholander, Heidi K. Thornquist, Jason Verley, (2018). Xyce Parallel Electronic Simulator Users’ Guide, Version 6.9 https://www.osti.gov/search/identifier:1528752 Document ID: 785021

Heidi K. Thornquist, Ting Mei, Sivasankaran Rajamanickam, Nathan David Ellingwood, (2018). Using the Basker Linear Solvers in Xyce Trilinos User Group Meeting https://www.osti.gov/search/identifier:1491763 Document ID: 724682

Sivasankaran Rajamanickam, Heidi K. Thornquist, Joshua Booth, (2017). Basker : A Threaded Sparse LU factorization utilizing Hierarchical Parallelism and Data Layouts International Workshop on Accelerators and Hybrid Exascale Systems (IPDPS 2016) https://www.osti.gov/search/identifier:1484926 Document ID: 453719

Eric R. Keiter, Karthik Venkatraman Aadithya, Ting Mei, Thomas V. Russo, Richard Schiek, Peter E. Sholander, Heidi K. Thornquist, Jason Verley, (2017). Xyce Parallel Electronic Simulator Users’ Guide, Version 6.8 https://www.osti.gov/search/identifier:1405267 Document ID: 703123

Eric R. Keiter, Karthik Venkatraman Aadithya, Ting Mei, Thomas V. Russo, Richard Schiek, Peter E. Sholander, Heidi K. Thornquist, Jason Verley, (2017). Xyce Parallel Electronic Simulator Reference Guide, Version 6.8 https://www.osti.gov/search/identifier:1405266 Document ID: 703124

Eric R. Keiter, Karthik Venkatraman Aadithya, Ting Mei, Thomas V. Russo, Richard Schiek, Peter E. Sholander, Heidi K. Thornquist, Jason Verley, (2017). Xyce Parallel Electronic Simulator Reference Guide, Version 6.7 https://www.osti.gov/search/identifier:1367417 Document ID: 612440

Eric R. Keiter, Karthik Venkatraman Aadithya, Ting Mei, Thomas V. Russo, Richard Schiek, Peter E. Sholander, Heidi K. Thornquist, Jason Verley, (2017). Xyce Parallel Electronic Simulator Users’ Guide, Version 6.7 https://www.osti.gov/search/identifier:1367422 Document ID: 612441

Sivasankaran Rajamanickam, Joshua Booth, Heidi K. Thornquist, (2016). Multithreaded Sparse LU Factorization utilizing Hierarchical Parallelism and Data Layouts Journal of Parallel Computing Document ID: 532268

Eric R. Keiter, Karthik Venkatraman Aadithya, Ting Mei, Thomas V. Russo, Richard Schiek, Peter E. Sholander, Heidi K. Thornquist, Jason Verley, (2016). Xyce Parallel Electronic Simulator Reference Guide, Version 6.6 https://www.osti.gov/search/identifier:1333486 Document ID: 553581

Eric R. Keiter, Karthik Venkatraman Aadithya, Ting Mei, Thomas V. Russo, Richard Schiek, Peter E. Sholander, Heidi K. Thornquist, Jason Verley, (2016). Xyce Parallel Electronic Simulator Users’ Guide, Version 6.6 https://www.osti.gov/search/identifier:1333487 Document ID: 553582

Patricia D. Hough, Matthew F. Barone, Richard Frederick Barrett, Kyran D. Mish, Heidi K. Thornquist, (2016). Final Review Memo from ATDM L2 Milestone Review Panel to ATDM L2 Milestone Team and Associated Management https://www.osti.gov/search/identifier:1562414 Document ID: 529796

Eric R. Keiter, Karthik Venkatraman Aadithya, Ting Mei, Thomas V. Russo, Richard Schiek, Peter E. Sholander, Heidi K. Thornquist, Jason Verley, (2016). Xyce Parallel Electronic Simulator Users’ Guide, Version 6.5 https://www.osti.gov/search/identifier:1259541 Document ID: 463818

Eric R. Keiter, Karthik Venkatraman Aadithya, Ting Mei, Thomas V. Russo, Richard Schiek, Peter E. Sholander, Heidi K. Thornquist, Jason Verley, (2016). Xyce Parallel Electronic Simulator Reference Guide, Version 6.5 https://www.osti.gov/search/identifier:1259542 Document ID: 463819

Sivasankaran Rajamanickam, Joshua Booth, Heidi K. Thornquist, (2016). Robust Solvers for Circuit Simulation on Modern Architectures 2016 Cis Erb https://www.osti.gov/search/identifier:1530033 Document ID: 463726

Joshua Dennis Booth, Sivasankaran Rajamanickam, Heidi K. Thornquist, (2016). Basker: A Threaded Sparse LU Factorization Utilizing Hierarchical Parallelism and Data Layouts The Sixth International Workshop on Accelerators and Hybrid Exascale Systems (IPDPS workshop) https://www.osti.gov/search/identifier:1347159 Document ID: 386901

Eric R. Keiter, Ting Mei, Thomas V. Russo, Richard Schiek, Peter E. Sholander, Heidi K. Thornquist, Jason Verley, David Gregory Baur, (2015). Xyce Parallel Electronic Simulator Users Guide, Version 6.4 https://www.osti.gov/search/identifier:1229701 Document ID: 365193

Eric R. Keiter, Ting Mei, Thomas V. Russo, Richard Schiek, Peter E. Sholander, Heidi K. Thornquist, Jason Verley, David Gregory Baur, (2015). Xyce Parallel Electronic Simulator Reference Guide, Version 6.4 https://www.osti.gov/search/identifier:1229702 Document ID: 365198

Sivasankaran Rajamanickam, Erik Gunnar Boman, Andrew Michael Bradley, Joshua Dennis Booth, Mehmet Deveci, Kyungjoo Kim, Clark R. Dohrmann, Heidi K. Thornquist, Edmond Chow, Aftab Patel, (2015). ShyLU and Thread Scalable Subdomain Solvers Trilinos User Group Meeting https://www.osti.gov/search/identifier:1514218 Document ID: 353635

Joshua Dennis Booth, Sivasankaran Rajamanickam, Heidi K. Thornquist, (2015). Basker: A Threaded Sparse LU Factorization Utilizing Hierarchical Parallelism and Data Layouts IEEE International parallel and distributed processing symposium https://www.osti.gov/search/identifier:1332050 Document ID: 343249

Eric R. Keiter, Ting Mei, Thomas V. Russo, Richard Schiek, Peter E. Sholander, Heidi K. Thornquist, Jason Verley, David Gregory Baur, (2015). Xyce Parallel Electronic Simulator Reference Guide, Version 6.3 https://www.osti.gov/search/identifier:1504606 Document ID: 264754

Eric R. Keiter, Ting Mei, Thomas V. Russo, Richard Schiek, Peter E. Sholander, Heidi K. Thornquist, Jason Verley, David Gregory Baur, (2015). Xyce Parallel Electronic Simulator Users Guide, Version 6.3 https://www.osti.gov/search/identifier:1504604 Document ID: 264757

Eric R. Keiter, Ting Mei, Thomas V. Russo, Richard Schiek, Peter E. Sholander, Heidi K. Thornquist, Jason Verley, David Gregory Baur, (2015). Xyce Parallel Electronic Simulator Release Notes Release 6.3 https://www.osti.gov/search/identifier:1504605 Document ID: 264759

Eric R. Keiter, Ting Mei, Thomas V. Russo, Richard Schiek, Peter E. Sholander, Heidi K. Thornquist, Jason Verley, David Gregory Baur, (2014). Xyce Parallel Electronic Simulator Users Guide, Version 6.2 https://www.osti.gov/search/identifier:1159115 Document ID: 155780

Richard B. Lehoucq, Erik Gunnar Boman, Karen D. Devine, Heidi K. Thornquist, Nicole Slattengren, (2014). Installing the Anasazi eigensolver package with application to some graph eigenvalue problems https://www.osti.gov/search/identifier:1494630 Document ID: 143264

Gary J. Denison, Ting Mei, Thomas V. Russo, Richard Schiek, Peter E. Sholander, Heidi K. Thornquist, Jason Verley, David G. Baur, (2014). Xyce Parallel Electronic Simulator, Release Notes, Release 6.1 https://www.osti.gov/search/identifier:1200660 Document ID: 5334231

Gary J. Denison, Ting Mei, Thomas V. Russo, Richard Schiek, Peter E. Sholander, Heidi K. Thornquist, Jason Verley, David G. Baur, (2014). Xyce Parallel Electronic Simulator Reference Guide, Version 6.1 https://www.osti.gov/search/identifier:1200662 Document ID: 5334232

Gary J. Denison, Ting Mei, Thomas V. Russo, Richard Schiek, Peter E. Sholander, Heidi K. Thornquist, Jason Verley, David G. Baur, (2014). Xyce Parallel Electronic Simulator Users Guide, Version 6.1 https://www.osti.gov/search/identifier:1200661 Document ID: 5334236

Gary J. Denison, Thomas V. Russo, Heidi K. Thornquist, Jaijeet Roychowdhury, Tianshi Wang, (2014). Xyce: an open source SPICE engine NEEDS Workshop https://www.osti.gov/search/identifier:1684945 Document ID: 5333076

Gary J. Denison, Ting Mei, Thomas V. Russo, Richard Schiek, Heidi K. Thornquist, Jason Verley, Debora A. Fixel, Todd S. Coffey, Roger P. Pawlowski, Christina E. Warrender, David G. Baur, (2014). Xyce Parallel Electronic Simulator Users’ Guide, Version 6.0.1 https://www.osti.gov/search/identifier:1147554 Document ID: 5331849

Gary J. Denison, Ting Mei, Thomas V. Russo, Roger P. Pawlowski, Richard Schiek, Todd S. Coffey, Heidi K. Thornquist, Jason Verley, Christina E. Warrender, Debora A. Fixel, David G. Baur, (2014). Xyce Parallel Electronic Simulator Reference Guide, Version 6.0.1 https://www.osti.gov/search/identifier:1147677 Document ID: 5331850

Gary J. Denison, Ting Mei, Thomas V. Russo, Richard Schiek, Peter E. Sholander, Heidi K. Thornquist, Jason Verley, David G. Baur, (2014). Xyce Parallel Electronic Simulator Release Notes, Release 6.0.1 https://www.osti.gov/search/identifier:1147632 Document ID: 5331851

Richard Frederick Barrett, Paul Crozier, Douglas W. Doerfler, Michael A. Heroux, Paul Lin, Heidi K. Thornquist, Timothy G. Trucano, Courtenay T. Vaughan, (2013). Assessing the Role of Mini-Applications in Predicting Key Performance Characteristics of Scientific and Engineering Applications Elsevier Journal of Parallel and Distributed Computing https://www.osti.gov/search/identifier:1121689 Document ID: 5330801

Cynthia Ann Phillips, Ting Mei, Eric R. Keiter, Richard Schiek, Heidi K. Thornquist, Jason Verley, Todd S. Coffey, Roger P. Pawlowski, Christina E. Warrender, Debora A. Fixel, David G. Baur, (2013). Xyce Parallel Electronic Simulator Users’ Guide, Version 6.0 https://www.osti.gov/search/identifier:1096496 Document ID: 5327109

Gary J. Denison, Ting Mei, Thomas V. Russo, Roger P. Pawlowski, Richard Schiek, Todd S. Coffey, Heidi K. Thornquist, Jason Verley, Christina E. Warrender, Debora A. Fixel, David G. Baur, (2013). Xyce Parallel Electronic Simulator Reference Guide, Version 6.0 https://www.osti.gov/search/identifier:1096463 Document ID: 5327110

Gary J. Denison, Ting Mei, Thomas V. Russo, Richard Schiek, Peter E. Sholander, Heidi K. Thornquist, Jason Verley, David G. Baur, (2013). Xyce Parallel Electronic Simulator Release Notes Release 6.0Release 6.0 https://www.osti.gov/search/identifier:1096453 Document ID: 5327111

Gary J. Denison, Thomas V. Russo, Richard Schiek, Heidi K. Thornquist, Ting Mei, Jason Verley, Peter E. Sholander, (2013). Building Guide: How to build Xyce from source code https://www.osti.gov/search/identifier:1096466 Document ID: 5327120

Heidi K. Thornquist, (2013). Scalable Transistor-Level Circuit Simulation for Radiation Effects Prediction CIS External Review https://www.osti.gov/search/identifier:1661124 Document ID: 5322474

Gary J. Denison, Robert J. Hoekstra, Thomas V. Russo, Richard Schiek, Ting Mei, Heidi K. Thornquist, Roger P. Pawlowski, Todd S. Coffey, Eric L. Rankin, Deborah A. Fixel, Keith R Santarelli, (2013). Xyce Parallel Electronic Simulator Release Notes 5.1.2 https://www.osti.gov/search/identifier:1097210 Document ID: 5282423

Gary J. Denison, Thomas V. Russo, Richard Schiek, Ting Mei, Heidi K. Thornquist, Todd S. Coffey, Keith R Santarelli, Roger P. Pawlowski, Eric L. Rankin, Deborah A. Fixel, (2013). Xyce Parallel Electronic Simulator Reference Guide, Version 5.1.2 https://www.osti.gov/search/identifier:1097213 Document ID: 5282424

Richard Schiek, Eric R. Keiter, Christina E. Warrender, James Bradley Aimone, Heidi K. Thornquist, Thomas V. Russo, Jason Verley, Patricia J. Crossno, Corinne Teeter, Ting Mei, Sivasankaran Rajamanickam, (2013). Neuron Simulation and Analysis with Xyce Computational and Systems Neuroscience (Cosyne) 2013 https://www.osti.gov/search/identifier:1064135 Document ID: 5319132

Richard Schiek, Heidi K. Thornquist, Christina E. Warrender, Ting Mei, Corinne Michelle Teeter, James Bradley Aimone, (2012). NeuroXyce: Simulating neural systems with Xyce https://www.osti.gov/search/identifier:1096952 Document ID: 5313322

Sivasankaran Rajamanickam, Erik Gunnar Boman, Michael A. Heroux, Heidi K. Thornquist, (2012). ShyLU: A Hybrid-Hybrid Solver Trilinos Users’ Group meeting https://www.osti.gov/search/identifier:1072647 Document ID: 5315025

Gary J. Denison, Ting Mei, Thomas V. Russo, Eric L. Rankin, Roger P. Pawlowski, Richard Schiek, Keith R Santarelli, Todd S. Coffey, Heidi K. Thornquist, Deborah A. Fixel, Christina E. Warrender, Jason Verley, (2012). Xyce Parallel Electronic Simulator: Reference Guide, Version 5.3 https://www.osti.gov/search/identifier:1055909 Document ID: 5308922

Gary J. Denison, Ting Mei, Thomas V. Russo, Eric L. Rankin, Roger P. Pawlowski, Richard Schiek, Keith R Santarelli, Todd S. Coffey, Heidi K. Thornquist, Deborah A. Fixel, Christina E. Warrender, Jason Verley, (2012). Xyce Parallel Electronic Simulator: Users’ Guide, Version 5.3 https://www.osti.gov/search/identifier:1055902 Document ID: 5308923

Heidi K. Thornquist, Eric R. Keiter, (2012). Large Scale Parallel Circuit Simulation Circuit and Multi-Domain Simulation Workshop (CMS) https://www.osti.gov/search/identifier:1141382 Document ID: 5277126

Heidi K. Thornquist, (2012). Trilinos: Foundational libraries that enable next-generation computing SIAM Applied Linear Algebra https://www.osti.gov/search/identifier:1650312 Document ID: 5309190

Heidi K. Thornquist, (2012). Sparse Matrix Techniques for Next-Generation Parallel Transistor-level Circuit Simulation Parallel Matrix Algorithms and Applications https://www.osti.gov/search/identifier:1650311 Document ID: 5309191

Richard Frederick Barrett, Douglas W. Doerfler, Paul Crozier, Michael A. Heroux, Paul Lin, Heidi K. Thornquist, Timothy G. Trucano, Courtenay T. Vaughan, (2012). Characterize the Role of the Mini-Applications in Predicting Key Performance Characteristics of Real Applications Milestone Review https://www.osti.gov/search/identifier:1650485 Document ID: 5308456

Heidi K. Thornquist, (2012). Cascading Failure Stimulator – CotillaSanchez-Parmer Vermont Smart Grid Seminar https://www.osti.gov/search/identifier:1119775 Document ID: 5299325

Richard Schiek, Christina E. Warrender, Heidi K. Thornquist, Ting Mei, Eric R. Keiter, Thomas V. Russo, (2011). Advanced partitioning and integration techniques to improve parallel performance of densely connected neuron simulations Society for Neuroscience Meeting 2011 https://www.osti.gov/search/identifier:1111634 Document ID: 5301664

Gary J. Denison, Thomas V. Russo, Richard Schiek, Heidi K. Thornquist, Ting Mei, Eric Rankin, (2011). Xyce Parallel Electronic Simulator: Developer Guide https://www.osti.gov/search/identifier:1029823 Document ID: 5287332

Heidi K. Thornquist, Mark Frederick Hoemmen, Michael A. Heroux, Richard B. Lehoucq, Michael L. Parks, David M. Day, Christopher Grover Baker, (2011). A Tutorial on Anasazi and Belos Trilinos User’s Group Meeting 2011 https://www.osti.gov/search/identifier:1661524 Document ID: 5301312

Gary J. Denison, Ting Mei, Heidi K. Thornquist, Brad Bond, (2011). Accelerating Transient Simulation of Linear Reduced Order Models https://www.osti.gov/search/identifier:1029817 Document ID: 5298560

Erik Gunnar Boman, Michael A. Heroux, Eric R. Keiter, Sivasankaran Rajamanickam, Richard Schiek, Chris Baker, Heidi K. Thornquist, (2011). Enabling Next-Generation Parallel Circuit Simulation with Trilinos Hpss 2011 https://www.osti.gov/search/identifier:1118668 Document ID: 5300108

Ting Mei, Heidi K. Thornquist, Eric R. Keiter, Scott A Hutchinson, (2011). Structure Preserving Reduced-Order Modeling of Linear Periodic Time-Varying Systems The International Conference on Computer-Aided Design (ICCAD) https://www.osti.gov/search/identifier:1106299 Document ID: 5299783

Lisa Jean Eshelman, Heidi K. Thornquist, Ting Mei, Eric R. Keiter, Thomas V. Russo, Eric Rankin, (2011). Parallel design simulation for neurologically inspired systems DAC Design Automation Conference https://www.osti.gov/search/identifier:1120326 Document ID: 5295501

Gary J. Denison, Ting Mei, Thomas V. Russo, Eric L. Rankin, Roger P. Pawlowski, Richard Schiek, Keith R Santarelli, Todd S. Coffey, Heidi K. Thornquist, Deborah A. Fixel, Christina E. Warrender, (2011). Xyce Parallel Electronic Simulator: Users’ Guide, Version 5.2 https://www.osti.gov/search/identifier:1018452 Document ID: 5293554

Gary J. Denison, Ting Mei, Thomas V. Russo, Eric L. Rankin, Roger P. Pawlowski, Richard Schiek, Keith R Santarelli, Todd S. Coffey, Heidi K. Thornquist, Deborah A. Fixel, Christina E. Warrender, (2011). Xyce Parallel Electronic Simulator: Reference Guide, Version 5.2 https://www.osti.gov/search/identifier:1018462 Document ID: 5293555

Heidi K. Thornquist, (2011). Efficient Preconditioners for Large-Scale Parallel Circuit Simulation SIAM Conference on Computational Science and Engineering https://www.osti.gov/search/identifier:1671602 Document ID: 5292436

Heidi K. Thornquist, Ting Mei, Ryan Nong, Keith Santarelli, Raymond S. Tuminaro, Yao Chen, (2010). Solution Methods for Very Highly Integrated Circuits https://www.osti.gov/search/identifier:1011611 Document ID: 5290202

Gary J. Denison, Heidi K. Thornquist, Robert J. Hoekstra, Thomas V. Russo, Richard Schiek, Eric Rankin, (2010). Parallel Transistor-Level Circuit Simulation https://www.osti.gov/search/identifier:1675145 Document ID: 5287759

Heidi K. Thornquist, (2010). Advanced in Parallel Transistor-Level Circuit Simulation Scientific Computing in Electrical Engineering 2010 https://www.osti.gov/search/identifier:1675216 Document ID: 5286970

Gary J. Denison, Heidi K. Thornquist, Richard Schiek, (2010). Parallel Algorithm Strategies for Circuit Simulation https://www.osti.gov/search/identifier:989383 Document ID: 5278866

Gary J. Denison, Ting Mei, Thomas V. Russo, Eric L. Rankin, Roger P. Pawlowski, Richard Schiek, Keith R Santarelli, Todd S. Coffey, Heidi K. Thornquist, Deborah A. Fixel, (2010). Xyce Parallel Electronic Simulator: Users’ Guide, Version 5.1 https://www.osti.gov/search/identifier:1004374 Document ID: 5277302

Gary J. Denison, Ting Mei, Thomas V. Russo, Eric L. Rankin, Roger P. Pawlowski, Richard Schiek, Keith R Santarelli, Todd S. Coffey, Heidi K. Thornquist, Deborah A. Fixel, (2010). Xyce Parallel Electronic Simulator: Reference Guide, Version 5.1 https://www.osti.gov/search/identifier:1324999 Document ID: 5277303

Gary L. Hennigan, Paul Crozier, Harold C. Edwards, Alan B. Williams, Mahesh Rajan, Eric R. Keiter, Heidi K. Thornquist, James M. Willenbring, Robert W. Numrich, (2010). Improving Performance via Mini-applications https://www.osti.gov/search/identifier:993908 Document ID: 5275173

Heidi K. Thornquist, David M. Day, Erik Gunnar Boman, Eric R. Keiter, (2010). Linear Solver Challenges in Large-Scale Circuit Simulation Copper Mountain 2010 https://www.osti.gov/search/identifier:1682553 Document ID: 5281411

Daniel J. Segalman, Heidi K. Thornquist, Irina Kalashnikova, (2009). Galerkin Reduced Order Models for Compressible Flow with Structural Interaction 46th AIAA Aerospace Sciences Meeting https://www.osti.gov/search/identifier:957703 Document ID: 5258442

Gary J. Denison, Ting Mei, Thomas V. Russo, Eric L. Rankin, Roger P. Pawlowski, Richard Schiek, Keith R Santarelli, Todd S. Coffey, Heidi K. Thornquist, Deborah A. Fixel, (2009). Xyce Parallel Electronic Simulator: Users’ Guide, Version 4.1 https://www.osti.gov/search/identifier:972491 Document ID: 5265101

Gary J. Denison, Ting Mei, Thomas V. Russo, Eric L. Rankin, Roger P. Pawlowski, Richard Schiek, Keith R Santarelli, Todd S. Coffey, Heidi K. Thornquist, Deborah A. Fixel, (2009). Xyce Parallel Electronic Simulator: Reference Guide, Version 4.1 https://www.osti.gov/search/identifier:972490 Document ID: 5265105

Gary J. Denison, Heidi K. Thornquist, David M. Day, Erik Gunnar Boman, Robert J. Hoekstra, (2009). A New Parallel Strategy for Transistor-Level Circuit Simulation IEEE Design Automation Conference (DAC) https://www.osti.gov/search/identifier:1142417 Document ID: 5268336

Lisa Jean Eshelman, James C. Forsythe, Surendra K. Ravula, Eric R. Keiter, Thomas V. Russo, Heidi K. Thornquist, (2008). Neurlogical Modeling Constraints: UQ from experiments to simulations Neuroscience 2008 https://www.osti.gov/search/identifier:1142596 Document ID: 5267322

Heidi K. Thornquist, Michael A. Heroux, Michael L. Parks, Richard B. Lehoucq, (2008). Belos: A Framework for Next-generation Iterative Linear Solvers Copper Mountain Conference on Iterative Methods https://www.osti.gov/search/identifier:1712856 Document ID: 5260964

Daniel J. Segalman, Irina Kalashnikova Tezaur, Jeffrey Lee Payne, Heidi K. Thornquist, (2008). Galerkin Reduced Order Models for Compressible Flow with Structural Interaction New Mexico State University Engineering Seminar https://www.osti.gov/search/identifier:1712608 Document ID: 5260545

Michael P. Desjarlais, Heidi K. Thornquist, David M. Day, Erik Gunnar Boman, (2008). Partitioning and Preconditioning for Circuit Simulation SIAM Parallel Processing Conference https://www.osti.gov/search/identifier:1146153 Document ID: 5260410

Irina Kalashnikova Tezaur, Daniel J. Segalman, Heidi K. Thornquist, (2008). Stable Galerkin Reduced Order Models for Linearized Compressible Flow Journal of Computational Physics https://www.osti.gov/search/identifier:946980 Document ID: 5259970

Heidi K. Thornquist, (2007). An Overview of Trilinos Rice University Graduate Student Colloquium https://www.osti.gov/search/identifier:1713167 Document ID: 5257870

Heidi K. Thornquist, (2007). Using Belos: Next-generation Iterative Solvers Trilinos User Group Meeting https://www.osti.gov/search/identifier:1720256 Document ID: 5257230

Heidi K. Thornquist, (2007). Amesos: Sparse Direct Solver Package Trilinos User Group Meeting https://www.osti.gov/search/identifier:1720255 Document ID: 5257204

William M. Scherzinger, Heidi K. Thornquist, (2007). Testing of Constitutive Models in LAME https://www.osti.gov/search/identifier:942059 Document ID: 5255490

William M. Scherzinger, Heidi K. Thornquist, (2007). Constitutive Models in LAME https://www.osti.gov/search/identifier:945916 Document ID: 5255596

William M. Scherzinger, Heidi K. Thornquist, (2007). Library of Advanced Materials for Engineering – LAME https://www.osti.gov/search/identifier:920808 Document ID: 5255228

Heidi K. Thornquist, Danny C. Sorensen, (2007). New Preconditioning Techniques for Arnoldi’s Method 17th Biennial Tri-Laboratory Engineering Conference https://www.osti.gov/search/identifier:1723070 Document ID: 5251911

Ulrich Ladislas Lucien Hetmaniuk, Heidi K. Thornquist, Christopher Grover Baker, Richard B. Lehoucq, (2007). Anasazi software for the numerical solution of large-scale eigenvalue problems ACM Transactions on Math Software https://www.osti.gov/search/identifier:903141 Document ID: 5249018

Heidi K. Thornquist, (2006). Teuchos from a Developer’s Perspective Trilinos User Group Meeting https://www.osti.gov/search/identifier:903141 Document ID: 5237713

Robert S. Chambers, Heidi K. Thornquist, Douglas B. Adolf, (2006). Nonlinear Viscoeleasticity of Fiber Reinforced Polymer Composities (FRPC’S) https://www.osti.gov/search/identifier:903141 Document ID: 5241282

Christopher Grover Baker, Heidi K. Thornquist, (2005). An Overview of Anasazi Trilinos User Group Meeting https://www.osti.gov/search/identifier:903141 Document ID: 5237712

Douglas B. Adolf, Robert S. Chambers, Heidi K. Thornquist, (2005). Boeing/SNL preliminary CRADA interaction CRADA phone call to be scheduled after R&A https://www.osti.gov/search/identifier:903141 Document ID: 5238280

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Awards and Recognitions

She has served on the Technical Program Committee of Supercomputing and the International Conference on Parallel Processing (ICPP).

R&D 100 Award 2004 Trilinos (team award)

R&D 100 Award 2008 Xyce (team award)

R&D 100 Award 2013 Mantevo (team award)