activity
20172023
most citedLandau Collision Integral Solver with Adaptive Mesh Refinement on Emerging Architectures

16 citations · 27 across the 8 of their papers we have counts for

collaborators

8 papers

cs.DC2023

Safe, Seamless, And Scalable Integration Of Asynchronous GPU Streams In PETSc

Jacob Faibussowitsch, Mark F. Adams, Richard Tran Mills +2

Leveraging Graphics Processing Units (GPUs) to accelerate scientific software has proven to be highly successful, but in order to extract more performance, GPU programmers must ove…

cs.SE2022

The PETSc Community Is the Infrastructure

Mark Adams, Satish Balay, Oana Marin +13

The communities who develop and support open source scientific software packages are crucial to the utility and success of such packages. Moreover, these communities form an import…

cs.MS2021★ 3 cited

Understanding performance variability in standard and pipelined parallel Krylov solvers

Hannah Morgan, Patrick Sanan, Matthew G. Knepley +1

In this work, we collect data from runs of Krylov subspace methods and pipelined Krylov algorithms in an effort to understand and model the impact of machine noise and other source…

cs.DC2021★ 1 cited

The PetscSF Scalable Communication Layer

Junchao Zhang, Jed Brown, Satish Balay +7

PetscSF, the communication component of the Portable, Extensible Toolkit for Scientific Computation (PETSc), is designed to provide PETSc's communication infrastructure suitable fo…

cs.MS2020★ 6 cited

Toward Performance-Portable PETSc for GPU-based Exascale Systems

Richard Tran Mills, Mark F. Adams, Satish Balay +11

The Portable Extensible Toolkit for Scientific computation (PETSc) library delivers scalable solvers for nonlinear time-dependent differential and algebraic equations and for numer…

cs.MS2018★ 1 cited

Comparative study of finite element methods using the Time-Accuracy-Size (TAS) spectrum analysis

Justin Chang, Maurice S. Fabien, Matthew G. Knepley +1

We present a performance analysis appropriate for comparing algorithms using different numerical discretizations. By taking into account the total time-to-solution, numerical accur…

math.NA2017

Manycore parallel computing for a hybridizable discontinuous Galerkin nested multigrid method

M. S. Fabien, M. G. Knepley, R. T. Mills +1

We present a parallel computing strategy for a hybridizable discontinuous Galerkin (HDG) nested geometric multigrid (GMG) solver. Parallel GMG solvers require a combination of coar…

cs.CE2017★ 16 cited

Landau Collision Integral Solver with Adaptive Mesh Refinement on Emerging Architectures

M. F. Adams, E. Hirvijoki, M. G. Knepley +3

The Landau collision integral is an accurate model for the small-angle dominated Coulomb collisions in fusion plasmas. We investigate a high order accurate, fully conservative, fin…