2 papers
cs.MS2025
Adaptive Sketching Based Construction of H2 Matrices on GPUs
Wajih Halim Boukaram, Yang Liu, Pieter Ghysels +1
We develop a novel linear-complexity bottom-up sketching-based algorithm for constructing a matrix, and present its high performance GPU implementation. The construction algo…
math.NA2025
Construction of Hierarchically Semi-Separable matrix Representation using Adaptive Johnson-Lindenstrauss Sketching
Yotam Yaniv, Pieter Ghysels, Osman Asif Malik +2
We present an extension of an adaptive, partially matrix-free, Hierarchically Semi-Separable (HSS) matrix construction algorithm by Gorman et al. [SIAM J. Sci. Comput. 41(5), 2019]…