Multiphysics simulations: Challenges and opportunities

DE Keyes, LC McInnes, C Woodward… - … Journal of High …, 2013 - journals.sagepub.com
We consider multiphysics applications from algorithmic and architectural perspectives,
where “algorithmic” includes both mathematical analysis and computational complexity, and …

[图书][B] Domain decomposition methods-algorithms and theory

A Toselli, O Widlund - 2006 - books.google.com
This book offers a comprehensive presentation of some of the most successful and popular
domain decomposition preconditioners for finite and spectral element approximations of …

Evaluating the performance of parallel subsurface simulators: An illustrative example with PFLOTRAN

GE Hammond, PC Lichtner… - Water resources research, 2014 - Wiley Online Library
To better inform the subsurface scientist on the expected performance of parallel simulators,
this work investigates performance of the reactive multiphase flow and multicomponent …

Reflections on the memory wall

SA McKee - Proceedings of the 1st conference on Computing …, 2004 - dl.acm.org
This paper looks at the evolution of the" Memory Wall" problem over the past decade. It
begins by reviewing the short Computer Architecture News note that coined the phrase …

[图书][B] Domain decomposition methods for the numerical solution of partial differential equations

TPA Mathew - 2008 - Springer
These notes serve as an introduction to a subject of study in computational mathematics
referred to as domain decomposition methods. It concerns divide and conquer methods for …

Parallel Lagrange--Newton--Krylov--Schur methods for PDE-constrained optimization. Part I: The Krylov--Schur solver

G Biros, O Ghattas - SIAM Journal on Scientific Computing, 2005 - SIAM
Large-scale optimization of systems governed by partial differential equations (PDEs) is a
frontier problem in scientific computation. Reduced quasi-Newton sequential quadratic …

CSX: an extended compression format for spmv on shared memory systems

K Kourtis, V Karakasis, G Goumas, N Koziris - ACM SIGPLAN Notices, 2011 - dl.acm.org
The Sparse Matrix-Vector multiplication (SpMV) kernel scales poorly on shared memory
systems with multiple processing units due to the streaming nature of its data access pattern …

[PDF][PDF] Toward realistic performance bounds for implicit CFD codes

WD Gropp, DK Kaushik, DE Keyes… - Proceedings of parallel …, 1999 - academia.edu
The performance of scienti c computing applications often achieves only a small fraction of
peak performance 7, 17]. In this paper, we discuss two causes of performance problems …

Optimizing sparse matrix-vector multiplication using index and value compression

K Kourtis, G Goumas, N Koziris - Proceedings of the 5th conference on …, 2008 - dl.acm.org
Previous research work has identified memory bandwidth as the main bottleneck of the
ubiquitous Sparse Matrix-Vector Multiplication kernel. To attack this problem, we aim at …

A parallel geometric multigrid method for finite elements on octree meshes

RS Sampath, G Biros - SIAM Journal on Scientific Computing, 2010 - SIAM
In this article, we present a parallel geometric multigrid algorithm for solving variable-
coefficient elliptic partial differential equations on the unit box (with Dirichlet or Neumann …