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Predictive Science Academic Alliance Program

Program Information

Popular name

NNSA Predictive Science Academic Alliance Program

Program Number

81.124

Sub-agency

N/A

Program objective

(1) To focus on development and demonstration of modeling/simulation technologies and methodologies through the structure of Multidisciplinary Simulation Centers, Single-Disciplinary Centers, and Focus Investigatory Centers to solve open science and engineering problems relevant to NNSA Defense Programs missions; (2) to promote and sustain scientific interactions between the academic community and scientists at the NNSA laboratories; (3) and to train scientists in specific areas of long-term research relevant to NNSA stockpile stewardship.

Program expenditures, by FY (2023 - 2025)

This chart shows obligations for the program by fiscal year. All data for this chart was provided by the administering agency and sourced from SAM.gov, USASpending.gov, and Treasury.gov.

For more information on each of these data sources, please see the About the data page.

Additional program information

  1. 2016

    The budget projection for FY 2016 is $18M with $4M going to each three MSC Centers and $2M for each of three SDC Centers. The accomplishment during FY16 are as follows: University of Utah, completed a massive rewrite of the Uintah runtime to incorporate Kokkos and multiple C++11 constructs. Developed a hybrid uncertainty quantification methodology for achieving predictivity with extrapolation that integrates Bayesian and Bound-to-Bound methodologies. Developed and taught two new graduate courses on Center themes (V/UQ and coal combustion). University of Illinois, Urbana-Champaign increased phyusics fidelity of predictive models based on uncertainty quantification and detailed bench-top diagnostics. Advanced experimental diagnostics to inform model development. Hosted the Workshop on Exascale Software Technologies in Albuquerque which provided a platform to broadly discuss forthcoming tools, challenges, and best practices to realize performance at exascale. Stanford University performed scalable high-fidelity radiation transport implemented in Soleil-MPI. Also they accomplished assessment of effect of particle-size uncertainty on flow/particle exit temperature. University of Florida developed CMT-bone as a proxy app for CMT-nek, validated it using the Veritas tool from LLNL, and developed an initial CPU-GPU implementation. They conducted additional simulations of shock interaction with particles at lower Mach numbers to emulate SNL experiments as well as conduct simulations at blast conditions. Texas A&M University completed calibration and validation of Impurity Model 1. Implemented extruded unstructured triangular mesh capability in PDT transport code; and implemented initial load-balancing algorithm for unstructured meshes. University of Notre Dame developed poro-visco-plastic constitutive model for metal powders, and advanced image-based modeling pipeline for micro-to-macro simulations. Performed full system demonstration simulations and validated them against experiments. Performed predictive damage multiscale simulations using up to 128,000 cores.

  2. 2017

    The Budget projection for 2017 is $18M with $4M going to each of the three MSC Centers and $2M for each of the three SDC Centers.

  3. 2018

    The same three MSC Centers were funded at $4M each, while the same three SDC Centers were each funded $2M.

  4. 2019

    The same 6 Centers (3 MSCs, 3 SDCs) were funded out of our budget projection for FY19.

  5. 2020

    Nine Centers (4 MSCs, 2 SDCs, and 3 FICs) were funded out of our budget projection in FY20.

  6. 2021

    Nine Centers (4 MSCs, 2 SDCs, and 3 FICs) were funded out of our budget projection in FY21.

  7. 2022

    Nine Centers (4 MSCs, 2 SDCs, and 3 FICs) are being funded out of our budget projection in FY22.

  8. 2023

    The nine PSAAP III Centers (4 MSCs, 2 SDCs, and 3 FICs) were funded out of our NNSA Academic Programs budget in FY23 to support the fourth year of their awards.

  9. 2024

    PSAAP III Centers (4 MSCs, 2 SDCs, and 3 FICs) were funded out of our budget projection in FY24 to support the fifth year of their awards.

  10. 2025

    The first year of the PSAAP IV Centers will be funded out of our budget projection in FY25.

Single Audit Applies (2 CFR Part 200 Subpart F):

For additional information on single audit requirements for this program, review the current Compliance Supplement.

OMB is working with the U.S. Government Accountability Office (GAO) and agency offices of inspectors general to include links to relevant oversight reports. This section will be updated once this information is made available.

  1. Atomic Energy Act of 1954, as amended, Section 31, Public Law 83-703, 68 Stat. 919, 42 U.S.C. 2051; Energy Reorganization Act of 1974, Title 1, Section 107, Public Law 93-438, 88 Stat. 1240, 42 U.S.C. 5817; Federal Nonnuclear Energy Research and Development Act of 1974, Public Law 93-577; Department of Energy Organization Act of 1977, as amended, Public Law 95-91, 42 U.S.C. 7101 et seq.