Funding

We thank the United States Department of Energy, Office of Science, Advanced Scientific Computing Research (ASCR) Applied Mathematics Research, SciDAC, and Exascale Project programs for providing much of the funding of PETSc.

Specific and previous funding sources:

• High Energy Physics (HEP) SciDAC Partnership Multiscale acceleration: Powering future discoveries in High Energy Physics, 2022-

• Biological and Environmental Research (BER) SciDAC Partnership Capturing the Dynamics of Compound Flooding in E3SM, 2022-

• Fusion Energy Science (FES) SciDAC Partnership Partnership Center for High-fidelity Boundary Plasma Simulation (SciDAC-4), 2005-

• FES SciDAC Partnership Simulation Center for Runaway Electron Avoidance and Mitigation, 2015-2023

• Exascale Computing Project WDMApp, 2021

• Applied Mathematics Base (Core) funding, 1994-

• Preparing PETSc/TAO for Exascale a DOE Exascale Project

• SciDAC FASTMath Project, 2011-

• SciDAC TOPS Project, 2001-2011

• DOE ASCR SciDAC-e, Large-Scale Differential Variational Inequalities for Heterogeneous Materials, 2010-2011

• NFS Computational Infrastructure for Geodynamics (CIG), 2005-2009

• Advanced Reactor Simulation, Richard Martineau, LDRD, Idaho National Laboratory

• Multiphase Flow Simulation, Ray Berry, LDRD, Idaho National Laboratory

• The DOE 2000 ACTS Toolkit

• The DOE/FE ACTI program, late 1990’s

• NSF Multi-Model Multi-Domain Computational Methods in Aerodynamics and Acoustics, 1996-1998