Current Staff

Summer School Leads

Julien Loiseau

CAI-1 Applied Computer Science.
Julien is a Computer Scientist with a background in High Performance Computing and simulation. He has experience in hybrid architectures and accelerated systems. His postdoctorate work focuses on FleCSPH, a tool for Smoothed Particles Hydrodynamics simulations based on the FleCSI framework from LANL. The intent is to provide an efficient and distributed tree data structure to FleCSI that allows the work to be offloaded to accelerators. The final goal of FleCSPH is to simulate large Astrophysics events.
Julien is an alumnus of the 2016 summer school class.

Hyun Lim

CAI-1 Applied Computer Science.
Hyun Lim is a staff scientist in CAI-1 with a background gravitational physics, astrophysics, and applied mathematics. He has experiences developing various multi-physics codes both Eulerian and Lagrangian frames to solve problems in astrophysics and magnetohydrodynamics. He also works on scalable numerical methods including adaptive mesh refinement and linear solvers.
Hyun Lim is an alumnus of the 2016 summer school class.

2026 Summer School Mentors

Andrés Yagüe López

CAI-1 Applied Computer Science Andrés is a staff scientist in CAI-1 with a background in numerical methods, solar physics and nuclear astrophysics. He has worked in magnetohydrodinamics, nucleosynthesis and galactic chemical evolution simulations, including stiff nuclear networks, developing novel numerical methods for the latter. He is interested in developing simulations that can take full advantage of HPC systems capabilities.

Andrew Reisner

CAI-1 Applied Computer Science Andrew is a computer scientist with a background in high performance computing and numerical analysis. He has experience in improving the performance and scalability of structured multilevel solvers. His interests include parallel numerical algorithms on emerging architectures and scalable linear solvers.
Andrew is an alumnus of the 2014 summer school class.

Brendan Krueger

CAI-1 Applied Computer Science Brendan is a computational scientist with experience in high performance computing and physical simulations.  He has worked on many projects at LANL, including the Eulerian Applications Project, the Singe thermonuclear reactions library, the Portage remapping library, and the FleCSI framework.  His experience includes implementing physics models, porting code to run on GPUs, and developing software infrastructure to support subject-matter experts in writing their own simulation tools.

Eduardo Lozano

T-1 Physics and Chemistry of Materials Eduardo Lozano is a staff scientist in the T-1 group with expertise in shock and detonation physics. His research focuses on continuum reactive modeling of high explosives, multimaterial hydrodynamics, and numerical methods for hyperbolic partial differential equations. He is interested in the development of models and algorithms and their deployment on heterogeneous computing architectures.

Maxim Moraru

CAI-1 Applied Computer Science Maxim is a computational scientist in CAI-1 with a background in High-Performance Computing. He has experience in hybrid architectures and HPC runtime systems. His research interests include high-speed communication, dynamic task mapping, and machine learning models.
Maxim is an alumnus of the 2021 and 2022 summer school classes.

Philipp Edelmann

CAI-1 Applied Computer Science Philipp is a staff scientist in CAI-1 with a background in stellar astrophysics, numerical methods for hydrodynamics, and high-performance computing. He has experience with implicit solvers for low Mach number hydrodynamics, nuclear reaction networks, and spectral methods. Currently he is working on developing portable and scalable multiphysics applications as part of the Ristra project.

Richard Berger

CAI-1 Applied Computer Science

Sumathi Lakshmiranganatha

CAI-1 Applied Computer Science Sumathi is a computational scientist with a background in Electrical and Computer Engineering. She has experience in porting and optimization of scientific applications like weather and power grid models on heterogeneous computing architectures. Her research interests include parallel-in-time algorithms on emerging hardware architectures and explainable machine learning models for scientific applications.

Thomas Vogel

CAI-1 Applied Computer Science

Founder

Allen McPherson
R.I.P. (Retired in Paradise)
Al McPherson is a computer scientist and the former lead of the CAI-1 Co-Design team.

Previous Leads

  • Christoph Junghans
  • Robert Pavel
  • Vinay Ramakrishnaiah

Previous mentors

  • Andrew Gaspar
  • Ben Bergen
  • Chris Malone
  • Chris Mauney
  • David Gunter
  • Irina Demeshko
  • Irina Sagert
  • Jamal Mohd-Yusof
  • Jonah Miller
  • Joshua C Dolence
  • Karen Tsai
  • Li-Ta (Ollie) Lo
  • Marc Charest
  • Nirmal Prajapati
  • Patricia (Pat) Grubel
  • Patrick McCormick
  • Reid Priedhorsky
  • Sam Jones
  • Wesley Paul Even