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DOE OSTI · 2998448

Supporting Special Values in ZFP

Lindstrom, Peter [Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)]
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Abstract

This white paper outlines potential approaches to supporting special values in the ZFP numerical compressor without breaking backwards compatibility. Other than infinities and NaNs, special values are often used to indicate the absence of data, where no value is defined, for example by designating finite but extreme “fill values” as special. Such fill values are commonly used in earth system science, among other applications, but if left as is during compression lead to artifacts and loss of precision in nearby true values. Multiple candidate solutions that would allow ZFP to recognize special values are here proposed. Until such support is available, we also sketch available workarounds.

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97 MATHEMATICS AND COMPUTING

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BibTeXRIS

Lindstrom, Peter [Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)]. 2025-10-15. Supporting Special Values in ZFP. https://doi.org/10.2172/2998448

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