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06/09/2023
An effective preconditioning strategy for volume penalized incompressible/low Mach multiphase flow solvers
The volume penalization (VP) or the Brinkman penalization (BP) method is...
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02/03/2023
Construction of Hierarchically Semi-Separable matrix Representation using Adaptive Johnson-Lindenstrauss Sketching
We extend an adaptive partially matrix-free Hierarchically Semi-Separabl...
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10/16/2021
Deep Learning and Spectral Embedding for Graph Partitioning
We present a graph bisection and partitioning algorithm based on graph n...
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04/08/2021
Graph Partitioning and Sparse Matrix Ordering using Reinforcement Learning
We present a novel method for graph partitioning, based on reinforcement...
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07/01/2020
Sparse Approximate Multifrontal Factorization with Butterfly Compression for High Frequency Wave Equations
We present a fast and approximate multifrontal solver for large-scale sp...
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02/09/2020
Butterfly factorization via randomized matrix-vector multiplications
This paper presents an adaptive randomized algorithm for computing the b...
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05/15/2019
Improving strong scaling of the Conjugate Gradient method for solving large linear systems using global reduction pipelining
This paper presents performance results comparing MPI-based implementati...
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10/09/2018
Matrix-free construction of HSS representation using adaptive randomized sampling
We present new algorithms for the randomized construction of hierarchica...
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03/27/2018