Paul F. Fischer

76 papers A 7C 1Journal 57Unranked 11

Year	Rank	Type	Title / Venue / Authors
2025	J	`jnl`	Deciphering boundary layer dynamics in high-Rayleigh-number convection using 3360 GPUs and a high-scaling in-situ workflow. CoRR Mathis Bode, Damian Alvarez, Paul F. Fischer, Christos E. Frouzakis, Jens Henrik Göbbert, Joseph A. Insley, Yu-Hsiang Lan, Victor A. Mateevitsi, Misun Min, Michael E. Papka, Silvio Rizzi, Roshan J. Samuel, Jörg Schumacher
2025	—	`conf`	Free Lunch in In Situ Visualization: Leveraging Idle CPU Resources to Mitigate GPU Contention. LDAV Victor A. Mateevitsi, Andres Sewell, Jens Henrik Göbbert, Mathis Bode, Paul F. Fischer, Joseph A. Insley, Ioannis Kavroulakis, Damaskinos Konioris, Yu-Hsiang Lan, Misun Min, Dimitrios Papageorgiou, Steve Petruzza, Silvio Rizzi, Ananias Tomboulides, Michael E. Papka
2025	J	`jnl`	General Field Evaluation in High-Order Meshes on GPUs. CoRR Ketan Mittal, Aditya Parik, Som Dutta, Paul F. Fischer, Tzanio V. Kolev, James Lottes
2025	J	`jnl`	Optimal Polynomial Smoothers and One-Sided V-Cycles for Poisson Problems. Numer. Linear Algebra Appl. Malachi Phillips, Paul F. Fischer
2024	J	`jnl`	DDES Study of Confined and Unconfined NACA Wing Sections Using Spectral Elements. CoRR Vishal Kumar, Ananias Tomboulides, Paul F. Fischer, Misun Min
2024	J	`jnl`	Exascale Simulations of Fusion and Fission Systems. CoRR Misun Min, Yu-Hsiang Lan, Paul F. Fischer, Elia Merzari, Tri Nguyen, Haomin Yuan, Patrick C. Shriwise, Stefan Kerkemeier, Andrew Davis, Aleksandr Dubas, Rupert Eardly, Rob J. Akers, Thilina Rathnayake, Tim Warburton
2024	J	`jnl`	Modeling Turbulence in the Atmospheric Boundary Layer with Spectral Element and Finite Volume Methods. CoRR Ananias Tomboulides, Matthew J. Churchfield, Paul F. Fischer, Michael A. Sprague, Misun Min
2024	J	`jnl`	Spectral Element Simulation of Liquid Metal Magnetohydrodynamics. CoRR Yichen Guo, Paul F. Fischer, Misun Min
2024	J	`jnl`	Towards exascale for wind energy simulations. Int. J. High Perform. Comput. Appl. Misun Min, Michael J. Brazell, Ananias Tomboulides, Matthew J. Churchfield, Paul F. Fischer, Michael A. Sprague
2024	—	`conf`	Visuals on the House: Optimizing HPC Workflows with No-Cost CPU Visualization. LDAV Victor A. Mateevitsi, Andres Sewell, Mathis Bode, Paul F. Fischer, Jens Henrik Göbbert, Joseph A. Insley, Ioannis Kavroulakis, Damaskinos Konioris, Yu-Hsiang Lan, Misun Min, Dimitrios Papageorgiou, Michael E. Papka, Steve Petruzza, Silvio Rizzi, Ananias Tomboulides
2024	J	`jnl`	nekCRF: A next generation high-order reactive low Mach flow solver for direct numerical simulations. CoRR Stefan Kerkemeier, Christos E. Frouzakis, Ananias Tomboulides, Paul F. Fischer, Mathis Bode
2023	A	`conf`	Exascale Multiphysics Nuclear Reactor Simulations for Advanced Designs. SC Elia Merzari, Steven P. Hamilton, Thomas M. Evans, Misun Min, Paul F. Fischer, Stefan Kerkemeier, Jun Fang, Paul K. Romano, Yu-Hsiang Lan, Malachi Phillips, Elliott Biondo, Katherine Royston, Tim Warburton, Noel Chalmers, Thilina Rathnayake
2023	J	`jnl`	Nek5000/RS Performance on Advanced GPU Architectures. CoRR Misun Min, Yu-Hsiang Lan, Paul F. Fischer, Thilina Rathnayake, John Holmen
2023	—	`conf`	Scaling Computational Fluid Dynamics: In Situ Visualization of NekRS using SENSEI. SC Workshops Victor A. Mateevitsi, Mathis Bode, Nicola J. Ferrier, Paul F. Fischer, Jens Henrik Göbbert, Joseph A. Insley, Yu-Hsiang Lan, Misun Min, Michael E. Papka, Saumil Patel, Silvio Rizzi, Jonathan Windgassen
2023	J	`jnl`	Scaling Computational Fluid Dynamics: In Situ Visualization of NekRS using SENSEI. CoRR Victor A. Mateevitsi, Mathis Bode, Nicola J. Ferrier, Paul F. Fischer, Jens Henrik Göbbert, Joseph A. Insley, Yu-Hsiang Lan, Misun Min, Michael E. Papka, Saumil Patel, Silvio Rizzi, Jonathan Windgassen
2022	J	`jnl`	NekRS, a GPU-accelerated spectral element Navier-Stokes solver. Parallel Comput. Paul F. Fischer, Stefan Kerkemeier, Misun Min, Yu-Hsiang Lan, Malachi Phillips, Thilina Rathnayake, Elia Merzari, Ananias Tomboulides, Ali Karakus, Noel Chalmers, Tim Warburton
2022	J	`jnl`	Optimal Chebyshev Smoothers and One-sided V-cycles. CoRR Malachi Phillips, Paul F. Fischer
2022	A	`conf`	Optimization of Full-Core Reactor Simulations on Summit. SC Misun Min, Yu-Hsiang Lan, Paul F. Fischer, Elia Merzari, Stefan Kerkemeier, Malachi Phillips, Thilina Rathnayake, April Novak, Derek Gaston, Noel Chalmers, Tim Warburton
2022	—	`conf`	Performance tuning of the Helmholtz matrix-vector product kernel in the computational fluid dynamics solver Nek5000/RS for the A64FX processor. HPC Asia Workshops Miwako Tsuji, Misun Min, Stefan Kerkemeier, Paul F. Fischer, Elia Merzari, Mitsuhisa Sato
2022	J	`jnl`	Towards Exascale for Wind Energy Simulations. CoRR Misun Min, Michael J. Brazell, Ananias Tomboulides, Matthew J. Churchfield, Paul F. Fischer, Michael A. Sprague
2022	—	`conf`	Tuning Spectral Element Preconditioners for Parallel Scalability on GPUs. PP Malachi Phillips, Stefan Kerkemeier, Paul F. Fischer
2021	J	`jnl`	All-Hex Meshing Strategies For Densely Packed Spheres. CoRR Yu-Hsiang Lan, Paul F. Fischer, Elia Merzari, Misun Min
2021	J	`jnl`	Auto-Tuned Preconditioners for the Spectral Element Method on GPUs. CoRR Malachi Phillips, Stefan Kerkemeier, Paul F. Fischer
2021	J	`jnl`	Efficient Exascale Discretizations: High-Order Finite Element Methods. CoRR Tzanio V. Kolev, Paul F. Fischer, Misun Min, Jack J. Dongarra, Jed Brown, Veselin Dobrev, Tim Warburton, Stanimire Tomov, Mark S. Shephard, Ahmad Abdelfattah, Valeria Barra, Natalie Beams, Jean-Sylvain Camier, Noel Chalmers, Yohann Dudouit, Ali Karakus, Ian Karlin, Stefan Kerkemeier, Yu-Hsiang Lan, David S. Medina, Elia Merzari, Aleksandr Obabko, Will Pazner, Thilina Rathnayake, Cameron W. Smith, Lukas Spies, Kasia Swirydowicz, Jeremy L. Thompson, Ananias Tomboulides, Vladimir Z. Tomov
2021	J	`jnl`	Efficient exascale discretizations: High-order finite element methods. Int. J. High Perform. Comput. Appl. Tzanio V. Kolev, Paul F. Fischer, Misun Min, Jack J. Dongarra, Jed Brown, Veselin Dobrev, Tim Warburton, Stanimire Tomov, Mark S. Shephard, Ahmad Abdelfattah, Valeria Barra, Natalie Beams, Jean-Sylvain Camier, Noel Chalmers, Yohann Dudouit, Ali Karakus, Ian Karlin, Stefan Kerkemeier, Yu-Hsiang Lan, David S. Medina, Elia Merzari, Aleksandr Obabko, Will Pazner, Thilina Rathnayake, Cameron W. Smith, Lukas Spies, Kasia Swirydowicz, Jeremy L. Thompson, Ananias Tomboulides, Vladimir Z. Tomov
2021	J	`jnl`	GPU Algorithms for Efficient Exascale Discretizations. CoRR Ahmad Abdelfattah, Valeria Barra, Natalie Beams, Ryan Bleile, Jed Brown, Jean-Sylvain Camier, Robert Carson, Noel Chalmers, Veselin Dobrev, Yohann Dudouit, Paul F. Fischer, Ali Karakus, Stefan Kerkemeier, Tzanio V. Kolev, Yu-Hsiang Lan, Elia Merzari, Misun Min, Malachi Phillips, Thilina Rathnayake, Robert N. Rieben, Thomas Stitt, Ananias Tomboulides, Stanimire Tomov, Vladimir Z. Tomov, Arturo Vargas, Tim Warburton, Kenneth Weiss
2021	J	`jnl`	GPU algorithms for Efficient Exascale Discretizations. Parallel Comput. Ahmad Abdelfattah, Valeria Barra, Natalie Beams, Ryan Bleile, Jed Brown, Jean-Sylvain Camier, Robert Carson, Noel Chalmers, Veselin Dobrev, Yohann Dudouit, Paul F. Fischer, Ali Karakus, Stefan Kerkemeier, Tzanio V. Kolev, Yu-Hsiang Lan, Elia Merzari, Misun Min, Malachi Phillips, Thilina Rathnayake, Robert N. Rieben, Thomas Stitt, Ananias Tomboulides, Stanimire Tomov, Vladimir Z. Tomov, Arturo Vargas, Tim Warburton, Kenneth Weiss
2021	J	`jnl`	Multirate timestepping for the incompressible Navier-Stokes equations in overlapping grids. J. Comput. Phys. Ketan Mittal, Som Dutta, Paul F. Fischer
2021	J	`jnl`	NekRS, a GPU-Accelerated Spectral Element Navier-Stokes Solver. CoRR Paul F. Fischer, Stefan Kerkemeier, Misun Min, Yu-Hsiang Lan, Malachi Phillips, Thilina Rathnayake, Elia Merzari, Ananias Tomboulides, Ali Karakus, Noel Chalmers, Tim Warburton
2020	J	`jnl`	Multirate Timestepping for the Incompressible Navier-Stokes Equations in Overlapping Grids. CoRR Ketan Mittal, Som Dutta, Paul F. Fischer
2020	J	`jnl`	Scalability of High-Performance PDE Solvers. CoRR Paul F. Fischer, Misun Min, Thilina Rathnayake, Som Dutta, Tzanio V. Kolev, Veselin Dobrev, Jean-Sylvain Camier, Martin Kronbichler, Tim Warburton, Kasia Swirydowicz, Jed Brown
2020	J	`jnl`	Scalability of high-performance PDE solvers. Int. J. High Perform. Comput. Appl. Paul F. Fischer, Misun Min, Thilina Rathnayake, Som Dutta, Tzanio V. Kolev, Veselin Dobrev, Jean-Sylvain Camier, Martin Kronbichler, Timothy C. Warburton, Kasia Swirydowicz, Jed Brown
2020	J	`jnl`	Stability analysis of a singlerate and multirate predictor-corrector scheme for overlapping grids. CoRR Ketan Mittal, Som Dutta, Paul F. Fischer
2019	J	`jnl`	A Characteristic-Based Spectral Element Method for Moving-Domain Problems. J. Sci. Comput. Saumil Patel, Paul F. Fischer, Misun Min, Ananias Tomboulides
2019	J	`jnl`	Mesh Smoothing for the Spectral Element Method. J. Sci. Comput. Ketan Mittal, Paul F. Fischer
2019	J	`jnl`	OpenACC acceleration for the PN-PN-2 algorithm in Nek5000. J. Parallel Distributed Comput. Evelyn Otero, Jing Gong, Misun Min, Paul F. Fischer, Philipp Schlatter, Erwin Laure
2019	J	`jnl`	Scalable Low-Order Finite Element Preconditioners for High-Order Spectral Element Poisson Solvers. SIAM J. Sci. Comput. Pedro D. Bello-Maldonado, Paul F. Fischer
2018	J	`jnl`	Nonconforming Schwarz-Spectral Element Methods For Incompressible Flow. CoRR Ketan Mittal, Som Dutta, Paul F. Fischer
2018	—	`conf`	Visualization of the Bulle-Effect at River Bifurcations. PEARC Som Dutta, Mark W. Van Moer, Paul F. Fischer, Marcelo H. García
2017	J	`jnl`	A performance analysis of ensemble averaging for high fidelity turbulence simulations at the strong scaling limit. Comput. Phys. Commun. Vakhtang Makarashvili, Elia Merzari, Aleks Obabko, Andrew R. Siegel, Paul F. Fischer
2017	J	`jnl`	On the Strong Scaling of the Spectral Element Solver Nek5000 on Petascale Systems. CoRR Nicolas Offermans, Oana Marin, Michel Schanen, Jing Gong, Paul F. Fischer, Philipp Schlatter, Aleks Obabko, Adam Peplinski, Maxwell Hutchinson, Elia Merzari
2017	J	`jnl`	Spectral Element Methods for Liquid Metal Reactors Applications. CoRR Elia Merzari, Aleksandr Obabko, Paul F. Fischer
2017	A	`conf`	Why is MPI so slow?: analyzing the fundamental limits in implementing MPI-3.1. SC Ken Raffenetti, Abdelhalim Amer, Lena Oden, Charles Archer, Wesley Bland, Hajime Fujita, Yanfei Guo, Tomislav Janjusic, Dmitry Durnov, Michael Blocksome, Min Si, Sangmin Seo, Akhil Langer, Gengbin Zheng, Masamichi Takagi, Paul K. Coffman, Jithin Jose, Sayantan Sur, Alexander Sannikov, Sergey Oblomov, Michael Chuvelev, Masayuki Hatanaka, Xin Zhao, Paul F. Fischer, Thilina Rathnayake, Matthew Otten, Misun Min, Pavan Balaji
2016	J	`jnl`	A spectrally accurate method for overlapping grid solution of incompressible Navier-Stokes equations. J. Comput. Phys. Brandon E. Merrill, Yulia T. Peet, Paul F. Fischer, James W. Lottes
2016	J	`jnl`	An MPI/OpenACC implementation of a high-order electromagnetics solver with GPUDirect communication. Int. J. High Perform. Comput. Appl. Matthew Otten, Jing Gong, Azamat Mametjanov, Aaron Vose, John M. Levesque, Paul F. Fischer, Misun Min
2016	J	`jnl`	Nekbone performance on GPUs with OpenACC and CUDA Fortran implementations. J. Supercomput. Jing Gong, Stefano Markidis, Erwin Laure, Matthew Otten, Paul F. Fischer, Misun Min
2016	—	`conf`	On the Strong Scaling of the Spectral Element Solver Nek5000 on Petascale Systems. EASC Nicolas Offermans, Oana Marin, Michel Schanen, Jing Gong, Paul F. Fischer, Philipp Schlatter
2016	—	`conf`	Parallel performance of h-type Adaptive Mesh Refinement for Nek5000. EASC Adam Peplinski, Paul F. Fischer, Philipp Schlatter
2015	C	`conf`	Evaluation of Parallel Communication Models in Nekbone, a Nek5000 Mini-Application. CLUSTER Ilya Ivanov, Jing Gong, Dana Akhmetova, Ivy Bo Peng, Stefano Markidis, Erwin Laure, Rui Machado, Mirko Rahn, Valeria Bartsch, Alistair Hart, Paul F. Fischer
2015	J	`jnl`	OpenACC acceleration of the Nek5000 spectral element code. Int. J. High Perform. Comput. Appl. Stefano Markidis, Jing Gong, Michael Schliephake, Erwin Laure, Alistair Hart, David Henty, Katherine Heisey, Paul F. Fischer
2014	—	`conf`	Nek5000 with OpenACC. EASC Jing Gong, Stefano Markidis, Michael Schliephake, Erwin Laure, Dan S. Henningson, Philipp Schlatter, Adam Peplinski, Alistair Hart, Jens Doleschal, David Henty, Paul F. Fischer
2013	J	`jnl`	An Efficient High-Order Time Integration Method for Spectral-Element Discontinuous Galerkin Simulations in Electromagnetics. J. Sci. Comput. Misun Min, Paul F. Fischer
2013	J	`jnl`	Spectral-element discontinuous Galerkin lattice Boltzmann simulation of flow past two cylinders in tandem with an exponential time integrator. Comput. Math. Appl. Kalu Chibueze Uga, Misun Min, Taehun Lee, Paul F. Fischer
2013	J	`jnl`	Stabilization of the Spectral Element Method in Convection Dominated Flows by Recovery of Skew-Symmetry. J. Sci. Comput. Johan Malm, Philipp Schlatter, Paul F. Fischer, Dan S. Henningson
2012	J	`jnl`	Stability Analysis of Interface Temporal Discretization in Grid Overlapping Methods. SIAM J. Numer. Anal. Yulia T. Peet, Paul F. Fischer
2011	J	`jnl`	Horizontal Large Eddy Simulation of Stratified Mixing in a Lock-Exchange System. J. Sci. Comput. Luigi C. Berselli, Paul F. Fischer, Traian Iliescu, Tamay M. Özgökmen
2010	J	`jnl`	Bridging the Boussinesq and primitive equations through spatio-temporal filtering. Appl. Math. Lett. Jinqiao Duan, Paul F. Fischer, Traian Iliescu, Tamay M. Özgökmen
2010	A	`conf`	Speeding up Nek5000 with autotuning and specialization. ICS Jaewook Shin, Mary W. Hall, Jacqueline Chame, Chun Chen, Paul F. Fischer, Paul D. Hovland
2009	J	`jnl`	A spectral Galerkin method for the coupled Orr-Sommerfeld and induction equations for free-surface MHD. J. Comput. Phys. Dimitrios Giannakis, Paul F. Fischer, Robert Rosner
2007	J	`jnl`	A high-order discontinuous Galerkin method for the unsteady incompressible Navier-Stokes equations. J. Comput. Phys. Khosro Shahbazi, Paul F. Fischer, C. Ross Ethier
2006	J	`jnl`	Fourier spectral simulations and Gegenbauer reconstructions for electromagnetic waves in the presence of a metal nanoparticle. J. Comput. Phys. Misun Min, Tae-Woo Lee, Paul F. Fischer, Stephen K. Gray
2006	J	`jnl`	Geophysical-astrophysical spectral-element adaptive refinement (GASpAR): Object-oriented h-adaptive fluid dynamics simulation. J. Comput. Phys. Duane Rosenberg, Aimé Fournier, Paul F. Fischer, Annick Pouquet
2006	J	`jnl`	Large-Eddy Simulation of the Lid-Driven Cubic Cavity Flow by the Spectral Element Method. J. Sci. Comput. Roland Bouffanais, Michel O. Deville, Paul F. Fischer, Emmanuel Leriche, Daniel Weill
2005	—	`conf`	An All-Hex Meshing Strategy for Bifurcation Geometries in Vascular Flow Simulation. IMR Chaman Singh Verma, Paul F. Fischer, Seung E. Lee, Francis Loth
2005	J	`jnl`	Hybrid Multigrid/Schwarz Algorithms for the Spectral Element Method. J. Sci. Comput. James W. Lottes, Paul F. Fischer
2003	J	`jnl`	A Schwarz Preconditioner for the Cubed-Sphere. SIAM J. Sci. Comput. Stephen J. Thomas, John M. Dennis, Henry M. Tufo, Paul F. Fischer
2002	J	`jnl`	Spectral Element Methods for Transitional Flows in Complex Geometries. J. Sci. Comput. Paul F. Fischer, Gerald W. Kruse, Francis Loth
2001	J	`jnl`	Fast Parallel Direct Solvers for Coarse Grid Problems. J. Parallel Distributed Comput. Henry M. Tufo, Paul F. Fischer
2001	J	`jnl`	Generalized scans and tridiagonal systems. Theor. Comput. Sci. Paul F. Fischer, Franco P. Preparata, John E. Savage
2000	J	`jnl`	Solving A J. Sci. Comput. Paul F. Fischer, Sigal Gottlieb
1999	A	`conf`	Numerical Simulation and Immersive Visualization of Hairpin Vortices. SC Henry M. Tufo, Paul F. Fischer, Michael E. Papka, Kristopher J. Blom
1999	A	`conf`	Terascale Spectral Element Algorithms and Implementations. SC Henry M. Tufo, Paul F. Fischer
1998	J	`jnl`	Modified Conjugate Gradient Method for the Solution of Ax=b. J. Sci. Comput. Sigal Gottlieb, Paul F. Fischer
1995	A	`conf`	Generalized Scans and Tri-Diagonal Systems. STACS Paul F. Fischer, Franco P. Preparata, John E. Savage
1991	J	`jnl`	Numerical simulation of incompressible fluid flows. Concurr. Pract. Exp. George Anagnostou, Yvon Maday, Anthony T. Patera, Paul F. Fischer, Einar M. Rønquist
1990	—	`conf`	Numerical Simulation of Incompressible Fluid Flows. Supercomputer George Anagnostou, Paul F. Fischer, Yvon Maday, Einar M. Rønquist, Anthony T. Patera