Background

Austin is a performance engineer in the Science Engagement Section. He is a member of the ExaStar ECP project, primarily working on porting and optimizations for next-generation architectures. He received his Ph.D. in Physics with an Interdisciplinary Graduate Minor in Computational Science in August 2015, from the University of Tennessee, Knoxville. Austin’s research interests span the include the topics of computational and nuclear astrophysics, as well as application performance and utilization of high-performance computing resources.

Education

2015
University of Tennessee
Physics
Doctor of Philosophy (Ph.D.)
2012
University of Tennessee
Physics
Master of Science (M.S.)
2009
Murray State University
Engineering Physics/Mathematics & Statistics
Bachelor of Science (B.S.)

R&D Activities Contributions

Center for Accelerated Application Readiness (CAAR) - In preparation for next-generation supercomputer Summit, the Oak Ridge Leadership Computing Facility (OLCF) selected 13 partnership projects into its Center for Accelerated Application Readiness (CAAR)…

Publications

2020
Bruenn, Stephen W., John M. Blondin, W. Raphael Hix, Eric J. Lentz, Messer, O.~E.~B., Anthony Mezzacappa, Eirik Endeve, J. Austin Harris, Pedro Marronetti, Reuben D. Budiardja, Merek A. Chertkow, Ching-Tsai Lee. "Chimera: A massively parallel code for core-collapse supernova simulations." Astrophysical Journal Supplement Series 248 (2020): 11. doi:10.3847/1538-4365/ab7aff
2017
Harris, J. Austin, W. Raphael Hix, Merek A. Chertkow, C. T. Lee, Eric J. Lentz, and O. E. Bronson Messer. "Implications for Post-Processing Nucleosynthesis of Core-Collapse Supernova Models with Lagrangian Particles." Astrophysical Journal 843 (2017): 2. doi:10.3847/1538-4357/aa76de
2016
Bruenn, Stephen W., Eric J. Lentz, W. Raphael Hix, Anthony Mezzacappa, J. Austin Harris, O. E. Bronson Messer, Eirik Endeve, John M. Blondin, Merek A. Chertkow, Eric J. Lingerfelt, Pedro Marronetti, and Konstantin N. Yakunin. "Development of Explosions in Axisymmetric Ab Initio Core-Collapse Supernova Simulations of 12-25 M⊙ Stars." Astrophysical Journal 818 (2016): 123. doi:10.3847/0004- 637X/818/2/123
2015
Lentz, Eric J., Stephen W. Bruenn, W. Raphael Hix, Anthony Mezzacappa, O. E. Bronson Messer, Eirik Endeve, John M. Blondin, J. Austin Harris, Pedro Marronetti, and Konstantin N. Yakunin. "Three-dimensional Core-collapse Supernova Simulated Using a 15 M⊙ Progenitor." Astrophysical Journal Letters 807 (2015): L31. doi:10.1088/2041-8205/807/2/L31
2014
Dong, Tingxing, Azzam Haidar, Piotr Luszczek, J. Austin Harris, Stanimire Tomov, and Jack Dongarra. "LU Factorization of Small Matrices: Accelerating Batched DGETRF on the GPU." Paper presented at 16th IEEE International Conference on High Performance Computing and Communications: HPCC 2014, Paris, France, August 20–22, 2014. doi:10.1109/HPCC.2014.30
2013
Guidry, Mike W. and J. Austin Harris. "Explicit Integration of Extremely-Stiff Reaction Networks: Quasi-Steady-State Methods." Computational Science & Discovery 6 (2013): 015002. doi:10.1088/1749-4699/6/1/015002