Lukas Spies

Originally from Germany, I am currently a PhD student at the University of Illinois at Urbana/Champaign. There I am part of the Scientific Computing Group in the Department of Computer Science. My current research focus lies primarily on Schwarz-type setups for multilevel solvers for the Reynolds-Averaged Navier-Stokes (RANS) equations in the context of wind farm modeling.



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Education
Since August 2018
University of Illinois at Urbana/Champaign USA
PhD in Computer Science
August 2014 - August 2016
Memorial University of Newfoundland Canada
Masters in Scientific Computing
September 2010 - August 2014
National University of Ireland, Galway Ireland
Bachelors in Mathematical Science


Experience
June 2022 - August 2022
National Renewable Energy Laboratory, Colorado USA
Graduate Research Assistant, Summer Internship
June 2020 - August 2020
Argonne National Laboratory, Illinois USA
Graduate Research Assistant, Summer Internship
May 2019 - August 2019
Los Alamos National Laboratory, New Mexico USA
Graduate Research Assistant, Summer Internship
August 2016 - August 2017
Center for Exascale Simulation of Plasma-Coupled Combustion USA
Visiting Scholar at the University of Illinois at Urbana/Champaign
June 2016
International HPC Summer School (IHPCSS) Slovenia
on HPC Challenges in Computational Sciences
July 2015
AARMS/PIMS Summer School Canada
Theme: Differential Equations and Numerical Analysis


Publications

June 2024
Spies, Lukas; Olson, Luke; MacLachlan, Scott
Exploiting mesh structure to improve multigrid performance for saddle-point problems

September 2022
Spies, Lukas; Bienz, Amanda; Moulton, David; Olson, Luke; Reisner, Andrew
Tausch: A halo exchange library for large heterogeneous computing systems using MPI, OpenCL, and CUDA

June 2021
Kolev, Tzanio; Fischer, Paul; Min, Misun; Dongarra, Jack; Brown, Jed; Dobrev, Veselin; Warburton, Tim; Tomov, Stanimire; Shephard, Mark S; Abdelfattah, Ahmad; Barra, Valeria; Beams, Natalie; Camier, Jean-Sylvain; Chalmers, Noel; Dudouit, Yohann; Karakus, Ali; Karlin, Ian; Kerkemeier, Stefan; Lan, Yu-Hsiang; Medina, David; Merzari, Elia; Obabko, Aleksandr; Pazner, Will; Rathnayake, Thilina; Smith, Cameron W; Spies, Lukas; Swirydowicz, Kasia; Thompson, Jeremy; Tomboulides, Ananias; Tomov, Vladimir
Efficient exascale discretizations: High-order finite element methods

August 2016
Spies, Lukas
Structured-grid multigrid with Taylor-Hood finite elements

Presentations

9th August 2022
Rocky Mountain Fluid Mechanics (RMFM) Research Symposium at CU Boulder, Colorado

24th October 2019
Scientific Computing Seminar at the University of Illinois

2nd October 2018
Scientific Computing Seminar at the University of Illinois

27th March 2017
18th Copper Mountain Conference On Multigrid Methods

22nd March 2016
14th Copper Mountain Conference On Iterative Methods

Posters

28th September 2022
14th JLESC workshop

12th December 2018
Class Project (CS598-APK)