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DOE OSTI · 1970201

Extending PETSc's Composable Hierarchical Solvers (Final Technical Report)

Brown, Jed
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Abstract

This report documents research activities conducted at CU Boulder as part of Extending PETSc’s Composable Hierarchical Solvers, which has been part of a collaboration with Argonne National Laboratory (separate award). Our work has focused on performance-portable end-to-end GPU solvers demonstrated via exemplary applications in nonlinear fluid and structural mechanics. We describe advances in algorithmic composition and analysis in the context of these applications, but the implementations are fully documented and decoupled, and in use by other projects. We believe the vertical integration achieved through collaboration with ECP’s CEED and the PSAAP center at CU was necessary to take risks with data structures and algorithms.

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42 ENGINEERING97 MATHEMATICS AND COMPUTINGAlgebraic MultigridFluid MechanicsMatrix-FreeP-MultigridPETScRustSolid Mechanics

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Brown, Jed. 2023-04-18. Extending PETSc's Composable Hierarchical Solvers (Final Technical Report). https://doi.org/10.2172/1970201

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