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Steven F. Ashby
Steven F. Ashby
Verified email at pnnl.gov
Title
Cited by
Cited by
Year
A parallel multigrid preconditioned conjugate gradient algorithm for groundwater flow simulations
SF Ashby, RD Falgout
Nuclear science and engineering 124 (1), 145-159, 1996
5251996
A taxonomy for conjugate gradient methods
SF Ashby, TA Manteuffel, PE Saylor
SIAM Journal on Numerical Analysis 27 (6), 1542-1568, 1990
4161990
The opportunities and challenges of exascale computing
S Ashby, P Beckman, J Chen, P Colella, B Collins, D Crawford, ...
Summary Report of the Advanced Scientific Computing Advisory Committee …, 2010
2202010
ParFlow user’s manual
RM Maxwell, SJ Kollet, SG Smith, CS Woodward, RD Falgout, ...
International Ground Water Modeling Center Report GWMI 1 (2009), 129, 2009
1002009
A numerical investigation of the conjugate gradient method as applied to three‐dimensional groundwater flow problems in randomly heterogeneous porous media
PD Meyer, AJ Valocchi, SF Ashby, PE Saylor
Water Resources Research 25 (6), 1440-1446, 1989
921989
A comparison of adaptive Chebyshev and least squares polynomial preconditioning for Hermitian positive definite linear systems
SF Ashby, TA Manteuffel, JS Otto
SIAM Journal on Scientific and Statistical Computing 13 (1), 1-29, 1992
911992
Polynomial preconditioning for conjugate gradient methods
SF Ashby
University of Illinois at Urbana-Champaign, 1988
811988
Adaptive polynomial preconditioning for Hermitian indefinite linear systems
SF Ashby, TA Manteuffel, PE Saylor
BIT Numerical Mathematics 29 (4), 583-609, 1989
701989
Minimax polynomial preconditioning for Hermitian linear systems
SF Ashby
SIAM Journal on Matrix Analysis and Applications 12 (4), 766-789, 1991
631991
Analysis of subsurface contaminant migration and remediation using high performance computing
AFB Tompson, RD Falgout, SG Smith, WJ Bosl, SF Ashby
Advances in Water Resources 22 (3), 203-221, 1998
611998
The role of the inner product in stopping criteria for conjugate gradient iterations
SF Ashby, MJ Holst, A Manteuffel, PE Saylor
BIT Numerical Mathematics 41, 26-52, 2001
522001
A linear algebraic analysis of diffusion synthetic acceleration for the Boltzmann transport equation
SF Ashby, PN Brown, MR Dorr, AC Hindmarsh
SIAM Journal on Numerical Analysis 32 (1), 128-178, 1995
491995
ChebyCode: a FORTRAN, implementation of Manteuffel's adaptive Chebyshev algorithm
SF Ashby
Department of Computer Science, University of Illinois at Urbana-Champaign, 1985
471985
A numerical simulation of groundwater flow and contaminant transport on the CRAY T3D and C90 Supercomputers
SF Ashby, WJ Bosl, RD Falgout, SG Smith, AFB Tompson, TJ Williams
The International Journal of High Performance Computing Applications 13 (1 …, 1999
45*1999
Use of high performance computing to examine the effectiveness of aquifer remediation
AFB Tompson, SF Ashby, RD Falgout, SG Smith, TW Fogwell, ...
Lawrence Livermore National Lab., CA (United States), 1994
251994
Modeling groundwater flow on MPPs
SF Ashby, RD Falgout, SG Smith, AFB Tompson
Proceedings of Scalable Parallel Libraries Conference, 17-35, 1993
211993
Multigrid preconditioned conjugate gradients for the numerical simulation of groundwater flow on the Cray T3D
SF Ashby, RD Falgout, SG Smith, TW Fogwell
Lawrence Livermore National Lab., CA (United States), 1994
191994
Preconditioned iterative methods for discretized transport equations
SF Ashby, PN Brown, MR Dorr, AC Hindmarsh
Proc. International Topical Meeting on Advances in Mathematics, Computations …, 1991
191991
A proposed standard for iterative linear solvers
SF Ashby, MK Seager
Technical Report UCRL-102860, Lawrence Livermore national Laboratory, 1990
191990
A decadal DOE plan for providing exascale applications and technologies for DOE mission needs
R Stevens, A White, P Beckman, R Bair, J Hack, J Nichols, A Geist, ...
Presentation at Advanced Simulation and Computing Principal Investigators …, 2010
112010
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