James Amundson, PhD

Computational Physicist


I work at the intersection of computing and physics. My background is in theoretical physics, with a Ph. D. in particle theory from the University of Chicago. I now work in scientific computing at Fermilab, where I head the Scientific Computing Division's Scientific Software Infrastructure department, managing a group of 18 developers and scientists. My technical work is in high performance computing and computational accelerator physics. I specialize in emerging technologies and massively parallel computations on supercomputers.

Although my current focus is on computing, I have unique experience in physics, having worked on all aspects of particle physics, including accelerators, experiments and theory.


I am the head of the Synergia project. Synergia is an accelerator simulation framework for emphasizing collective effects. It is a hybrid C++/Python system that scales from laptops to 100,000+ core supercomputers.

Projects in my department

My department is responsible for CMSSW, the C++ software framework for the CMS experiment at the world's largest particle accelerator, the Large Hadron Collider (LHC). CMSSW has processed roughly an exabyte of data since the start of the LHC operational runs in 2009.
My department is also responsible for art, the C++ software framework used by almost all new experiments at Fermilab.
Finally, my department is responsible for LArSoft, a collaborative project for simulation, reconstruction and analysis of data from liquid argon particle detectors. LArSoft builds upon the art framework.

Contact Me

email: amundson@fnal.gov

phone: +1 630 840-2430

physical mail:
P.O. Box 500
M.S. 234
Batavia, IL 60510



A downloadable version of my academic CV is available here. The embedded version follows.

Selected presentations