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DOE OSTI · 2588041

Efficient and Accurate Pre-Inversion of Equation of State Data

O'Neil, Erin Patricia [Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)]·Basabe, Joshua J. [Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)]
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Abstract

In this report, we evaluate the trade-offs between accuracy and performance in three equation of state interpola- tion strategies- EOSPAC, SpinerEOSDependsRhoT, and SpinerEOSDependsRhoSie-using SESAME tabular data. We also investigate ways to reduce nonlinearity in the data through invertible transformations within the SpinerEOS- DependsRhoSie class with the goal of impacting interpolation accuracy. We include a variety of benchmarking tests that vary the grid densities and how memory is accessed.

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36 MATERIALS SCIENCE71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS97 MATHEMATICS AND COMPUTING

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O'Neil, Erin Patricia [Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)], Basabe, Joshua J. [Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)]. 2025-08-29. Efficient and Accurate Pre-Inversion of Equation of State Data. https://doi.org/10.2172/2588041

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36 MATERIALS SCIENCE↗