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add docs on Jacobian caching #1561

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merged 10 commits into from
May 24, 2024

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zingale
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@zingale zingale commented May 23, 2024

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zingale commented May 23, 2024

blocked by #1559

can be disabled at runtime by setting ``integrator.use_jacobian_caching = 0``.

On GPUs, we disable Jacobian caching due to the increased memory needs. This
is disabled at compile-time via the build parameter ``USE_JACOBIAN_CACHING``.
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Its currently only disabled by default for CUDA I think? Should we change that?

Also I think you mean "disabled by default but can be enabled at compile-time via USE_JACOBIAN_CACHING=TRUE "

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you're right. I've fixed that.

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zingale commented May 24, 2024

that's a good point -- maybe that explains why HIP performance is not as good as CUDA?

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zingale commented May 24, 2024

addressing the CUDA-specific part in #1564

@zingale zingale merged commit 4d8c2e5 into AMReX-Astro:development May 24, 2024
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@zingale zingale deleted the more_integrator_docs branch May 24, 2024 17:45
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2 participants