A Brief History of ASC and PSAAP

In 1995 the U.S. Department of Energy established the Accelerated Strategic Computing Initiative (ASCI), now known as the Advanced Simulation and Computing (ASC) program. Its purpose was to bring together the resources of three NNSA Defense Program national laboratories in a consolidated effort to achieve significant advances in computational modeling and simulation capabilities for maintaining the US nuclear stockpile. ASCI recognized some of its program objectives were only achievable by the establishment of a strong research portfolio of strategic alliances with leading U.S. academic institutions. To help meet the challenge, ASCI’s Academic Strategic Alliance Program (ASAP) was formed in 1997 to engage the U.S. academic community in advancing science-based modeling and simulation technologies. In 2008, the next phase of the alliance program, PSAAP I, continued the academic engagement, adding an emphasis on validation, verification, and uncertainty quantification. The program continued in 2014 with the establishment of PSAAP II that provided for an additional focus on computer science.  As PSAAP II come to an end NNSA’s Office of Advanced Simulation and Computing (ASC) and Institutional Research and Development Programs, Lawrence Livermore National Laboratory (LLNL), Los Alamos National Laboratory (LANL) and Sandia National Laboratories (SNL), initiated the next phase of its academic science program, PSAAP III, that started in 2020.


Academic Strategic Alliance Program 

  • California Institute of Technology: Center for Simulating the Dynamic Response of Materials

  • Stanford University: Center for Integrated Turbulence Simulations

  • University of Chicago: Center for Astrophysical Thermonuclear Flashes

  • University of Illinois at Urbana‐Champaign: Center for Simulation of Advanced Rockets

  • University of Utah: Center for the Simulation of Accidental Fires & Explosions



  • California Institute of Technology: Center for Predictive Modeling and Simulation of High‐Energy Density Dynamic Response of Materials

  • Purdue University: Center for Prediction of Reliability, Integrity and Survivability of Microsystems

  • Stanford University: Predictive Simulations of Multi‐Physics Flow Phenomena, with Application to Integrated Hypersonic Systems

  • University of Michigan at Ann Arbor: Center for Radiative Shock Hydrodynamics

  • University of Texas at Austin: Center for Predictive Engineering and Computational Science



  • University of Utah: Center for High Efficiency Electric Power Generation with Carbon Capture

  • University of Illinois‐Urbana‐Champaign: Center for Exascale Simulation of Plasma‐Coupled Combustion

  • Stanford University: Predictive Simulations of Particle‐laden Turbulence in a Radiation Environment

  • University of Florida: Center for Compressible Multiphase Turbulence

  • Texas A&M University: Center for Exascale Radiation Transport

  • University of Notre Dame: Center for Shock Wave‐processing of Advanced Reactive Materials


PSAAP III Pre-Proposal Meeting


PSAAP III Kickoff Meeting