Publications

Publications

Addressing Irregular Patterns of Matrix Computations on GPUs and Their Impact on Applications Powered by Sparse Direct Solvers

A. Abdelfattah, P. Ghysels, W. Boukaram, S. Tomov, X. S. Li, J. Dongarra

VoxImp: Impedance Extraction Simulator for Voxelized Structures

M. Wang, Y. Liu, P. Ghysels, A. C. Yucel

High performance sparse multifrontal solvers on modern GPUs

P. Ghysels, R. Synk

Butterfly Factorization Via Randomized Matrix-Vector Multiplications

Y. Liu, X. Xing, H. Guo, E. Michielssen, P. Ghysels, X. Sherry Li

Sparse Approximate Multifrontal Factorization with Butterfly Compression for High-Frequency Wave Equations

Y. Liu, P. Ghysels, L. Claus, X. Sherry Li

Scalable and Memory-Efficient Kernel Ridge Regression (2020)

G. Chavez, Y. Liu, P. Ghysels, X. Sherry Li, E. Rebrova

A parallel hierarchical blocked adaptive cross approximation algorithm

Y. Liu, P. Ghysels, L. Claus, X. Sherry Li

Preparing sparse solvers for exascale computing

Hartwig Anzt, Erik Boman, Rob Falgout, Pieter Ghysels, Michael Heroux, Xiaoye Li, et.al.

Technical report: STRUMPACK and SuperLU bottleneck study. (2018)

P. Ghysels, Y. Liu, X. Sherry Li

Robust and Accurate Stopping Criteria for Adaptive Randomized Sampling in Matrix-Free Hierarchically Semiseparable Construction

C. Gorman, G. Chávez, P. Ghysels, T. Mary, F.-H. Rouet, X. Sherry Li

A Study of Clustering Techniques and Hierarchical Matrix Formats for Kernel Ridge Regression. (IPDPSW 2018)

E. Rebrova, G. Chávez, Y. Liu, P. Ghysels, X. Sherry Li

A robust parallel preconditioner for indefinite systems using hierarchical matrices and randomized sampling. (IPDPS 2017)

P. Ghysels, X. Sherry Li, C. Gorman, F.-H. Rouet

A distributed-memory package for dense hierarchically semi-separable matrix computations using randomization. (TOMS 2016)

F.-H. Rouet, X. Sherry Li, P. Ghysels, A. Napov.

An efficient multi-core implementation of a novel HSS-structured multifrontal solver using randomized sampling. (SISC 2015)

P. Ghysels, X. Sherry Li, F.-H. Rouet, S. Williams, A. Napov