Publications

Non-invasive Regional Multigrid for Semi-structured Grids

Wccm-apcom

Peter Brian Ohm, Matthias Mayr, Luc Berger-Vergiat, Raymond S. Tuminaro

Preconditioners for Plasma Physics and Magnetohydrodynamics: Handling Multiple Timescales

Preconditioning 2022International Conference on Preconditioning Techniques for Scientific and Industrial Applications

Eric Christopher Cyr, John N. Shadid, Raymond S. Tuminaro

Block Preconditioning for Magnetic Confinement Fusion Relevant Resistive MHD Simulations

8th European Congress on Computational Methods in Applied Sciences and Engineering

Peter Brian Ohm, Jesus Bonilla, Edward Geoffrey Phillips, John N. Shadid, Jonathan J. Hu, Raymond S. Tuminaro

Block Preconditioning for Magnetic Confinement Fusion Relevant Resistive MHD Simulations

17th Copper Mountain Conference On Iterative Methods

Peter Brian Ohm, Jesus Bonilla de Toro, Edward Phillips, John N. Shadid, Jonathan J. Hu, Raymond S. Tuminaro

Smoothed Aggregation for Difficult Stretched Mesh and Coefficient Variation Problems

17th Copper Mountain Conference On Iterative Methods

Raymond S. Tuminaro, Jonathan J. Hu, Christopher Siefert

Scalability studies of Albany Land Ice: a performance portable, ice sheet solver

SIAM Conference on Parallel Processing for Scientific Computing

Jerry Watkins, Max Lewis Carlson, Carolyn Kao, Irina Kalashnikova Tezaur, Raymond S. Tuminaro

A Monolithic Algebraic Multigrid Framework for Multiphysics Applications with Examples from Resistive MHD

Electronic Transactions on Numerical Analysis

Peter Brian Ohm, Jonathan J. Hu, John N. Shadid, Eric Christopher Cyr, Raymond S. Tuminaro, Tobias A. Wiesner

Non-invasive Regional Multigrid for Semi-structured Grids

15th World Congress on Computational Mechanics

Peter Brian Ohm, Raymond S. Tuminaro, Luc Berger-Vergiat, Matthias Mayr

Low-order preconditioning of the Stokes equations

Numerical Linear Algebra with Applications

Alexey Voronin, Yunhui He, Scott MacLachlan, Luke Olson, Raymond S. Tuminaro

https://www.osti.gov/search/identifier:1834325

Algebraic Multigrid for mixed finite element discretizations of the Stokes Equations

University of Maryland Numerical Analysis Seminar

Raymond S. Tuminaro, Alexey Voronin, Scott Machlan, Luke Olson

An Algebraic Monolithic Method for Volume-coupled Multiphysics Problems

The 9th ediiton of the International Conference on Computational Methods for Coupled Problems in Science and Engineering

Peter Brian Ohm, Raymond S. Tuminaro, Jonathan J. Hu, John N. Shadid, Eric Christopher Cyr, Tobias Wiesner

https://www.osti.gov/search/identifier:1872519

Multilevel Methods for Maxwell's Equations

SIAM Conference on Applied Linear Algebra (LA21)

Christopher Siefert, Raymond S. Tuminaro, Christian Alexander Glusa, John Kaushagen

https://www.osti.gov/search/identifier:1869378

A Monolithic Algebraic Multigrid Approach for Coupled Multiphysics Problems using the MueLu Framework

Cm202120th Copper Mountain Conference On Multigrid Methods

Peter Brian Ohm, Raymond S. Tuminaro, John N. Shadid, Jonathan J. Hu, Tobias Wiesner, Eric Christopher Cyr

https://www.osti.gov/search/identifier:1861027

An Algebraic Monolithic Method for Volume-coupled Multiphysics Problems

SIAM Conference on Computational Science and Engineering

Peter Brian Ohm, Raymond S. Tuminaro, John N. Shadid, Jonathan J. Hu, Tobias Wiesner

https://www.osti.gov/search/identifier:1854312

An Algebraic Monolithic Method for Volume-coupled Multiphysics Problems

IX International Conference on Coupled Problems in Science and Engineering

Peter Brian Ohm, Raymond S. Tuminaro, Jonathan J. Hu, John N. Shadid, Eric Christopher Cyr, Tobias Wiesner

KKT Preconditioners for PDE-Constrained Optimization with the Helmholtz Equation

SIAM Journal on Scientific Computing (SISC)

Drew Philip Kouri, Denis Ridzal, Raymond S. Tuminaro

https://www.osti.gov/search/identifier:1784959

MueLu's Algorithmic Performance on GPU

SIAM Parallel Processing

Luc Berger-Vergiat, Jonathan J. Hu, Raymond S. Tuminaro, Christopher Siefert, Christian Alexander Glusa

https://www.osti.gov/search/identifier:1766725

Trilinos/Kokkos-based strategy towards achieving a performance portable land-ice model

BiRS workshop - mathematical modeling in glaciology

Irina Kalashnikova Tezaur, Jerry Watkins, Raymond S. Tuminaro

https://www.osti.gov/search/identifier:1760994

Algebraic Multigrid for Highly Convective Flow Simulations

Stanford University seminar

Raymond S. Tuminaro, Luc Berger-Vergiat, Christopher Siefert, Mike, Brazell, Dimitri Mavriplis

https://www.osti.gov/search/identifier:1643436

Techniques for Simulating Multiple Timescales with Application to Plasmas

Mathematics Seminar at the University of New Mexico

Eric Christopher Cyr, John N. Shadid, Raymond S. Tuminaro, Luis (LANL) Chacon, Roger P. Pawlowski, Edward Geoffrey Phillips, Sean Miller

https://www.osti.gov/search/identifier:1646409

LDRD Final Report: Fast and Robust Linear Solvers based on Hierarchical Matrices

Erik Gunnar Boman, Eric Darve, Richard B. Lehoucq, Sivasankaran Rajamanickam, Raymond S. Tuminaro, Ichitaro Yamazaki

https://www.osti.gov/search/identifier:1574609

A Preconditioner based on Sparsified Nested Dissection and Low-Rank Approximations

Householder Symposium

Erik Gunnar Boman, Leopold Cambier, Chao Chen, Eric Darve, Sivasankaran Rajamanickam, Raymond S. Tuminaro

Scalable Preconditioners to Improve Time to Solution for Magnetohydrodynamics Applications

Computer Science and Information Science External Review Board

Raymond S. Tuminaro, John N. Shadid, Eric Christopher Cyr, Paul Lin, Roger P. Pawlowski, Edward Geoffrey Phillips, Tobias Wiesner, James Adler, Tom Benson, Luis Chacon, Patrick Farrell, Ari Rappaport, Scott Maclachlan, Jonathan J. Hu, Luc Berger-Vergiat, Christian Alexander Glusa, Christopher Siefert

https://www.osti.gov/search/identifier:1645823

A Robust Hierarchical Solver for Ill-Conditioned Systems with Applications to Ice Sheet Modeling

Journal of Computational Physics

Chao Chen, Leopold Cambier, Erik Gunnar Boman, Sivasankaran Rajamanickam, Raymond S. Tuminaro, Eric Darve

https://www.osti.gov/search/identifier:1559514

SpaND: An Algebraic Sparsified Nested Dissection Algorithm Using Low-Rank Approximations

Preconditioning'19

Leopold Cambier, Chao Chen, Erik Gunnar Boman, Sivasankaran Rajamanickam, Raymond S. Tuminaro, Eric Darve

https://www.osti.gov/search/identifier:1641027