Productivity, performance, and portability for computational fluid dynamics applications

IZ Reguly, GR Mudalige - Computers & Fluids, 2020 - Elsevier
Hardware trends over the last decade show increasing complexity and heterogeneity in high
performance computing architectures, which presents developers of CFD applications with …

Alya: Multiphysics engineering simulation toward exascale

M Vázquez, G Houzeaux, S Koric, A Artigues… - Journal of computational …, 2016 - Elsevier
Alya is a multi-physics simulation code developed at Barcelona Supercomputing Center
(BSC). From its inception Alya code is designed using advanced High Performance …

Pangulu: A scalable regular two-dimensional block-cyclic sparse direct solver on distributed heterogeneous systems

X Fu, B Zhang, T Wang, W Li, Y Lu, E Yi… - Proceedings of the …, 2023 - dl.acm.org
Sparse direct solvers play a vital role in large-scale high performance computing in science
and engineering. Existing distributed sparse direct methods employ multifrontal/supernodal …

[HTML][HTML] A randomized algorithm for approximating the log determinant of a symmetric positive definite matrix

C Boutsidis, P Drineas, P Kambadur… - Linear Algebra and its …, 2017 - Elsevier
We introduce a novel algorithm for approximating the logarithm of the determinant of a
symmetric positive definite (SPD) matrix. The algorithm is randomized and approximates the …

FANTOM: Two-and three-dimensional numerical modelling of creeping flows for the solution of geological problems

C Thieulot - Physics of the Earth and Planetary Interiors, 2011 - Elsevier
A new finite element code for the solution of the Stokes and heat transport equations is
presented. It has purposely been designed to address geological flow problems in two and …

Design of a multicore sparse Cholesky factorization using DAGs

JD Hogg, JK Reid, JA Scott - SIAM Journal on Scientific Computing, 2010 - SIAM
The rapid emergence of multicore machines has led to the need to design new algorithms
that are efficient on these architectures. Here, we consider the solution of sparse symmetric …

High performance sparse multifrontal solvers on modern GPUs

P Ghysels, R Synk - Parallel Computing, 2022 - Elsevier
We have ported the numerical factorization and triangular solve phases of the sparse direct
solver STRUMPACK to GPU. STRUMPACK implements sparse LU factorization using the …

Three‐dimensional modelling of controlled‐source electromagnetic surveys using an edge finite‐element method with a direct solver

Y Chung, JS Son, TJ Lee, HJ Kim, C Shin - Geophysical Prospecting, 2014 - earthdoc.org
ABSTRACT A fully three‐dimensional finite‐element algorithm has been developed for
simulating controlled‐source electromagnetic surveys. To exploit the advantages of …

Sparse matrix factorization in the implicit finite element method on petascale architecture

S Koric, A Gupta - Computer Methods in Applied Mechanics and …, 2016 - Elsevier
The performance of the massively parallel direct multifrontal solver Watson Sparse Matrix
Package (WSMP) for solving large sparse systems of linear equations arising in implicit finite …

Three‐dimensional numerical modeling of upper crustal extensional systems

V Allken, RS Huismans… - Journal of Geophysical …, 2011 - Wiley Online Library
We focus on understanding the evolution and structural style of crustal extension in three
dimensions using state of the art forward dynamic models. To date, few 3‐D models exist …