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UASTC RDO results differ from run to run unless no-multithreading is specified #151

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MarkCallow opened this issue Jun 10, 2020 · 1 comment
Open

UASTC RDO results differ from run to run unless no-multithreading is specified #151

MarkCallow opened this issue Jun 10, 2020 · 1 comment
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enhancement New feature or request

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@MarkCallow
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Opening this as a reminder of a problem I already reported to you.

Each time I run the UASTC encoder with RDO, the result is slightly different. This is visible only if you subsequently deflate with zstd in which case the sizes of some of the deflated mid- to larger-sized mip levels will vary by a few bytes across runs.

The problem doesn't occur if multi-threading is disabled. Every run will produce identical results.
@MarkCallow MarkCallow mentioned this issue Aug 22, 2020
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@richgel999
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Got it - I'm going to investigate a deterministic option.

@richgel999 richgel999 added the enhancement New feature or request label Dec 27, 2021
@MarkCallow MarkCallow mentioned this issue Nov 28, 2022
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@MarkCallow @richgel999