IndexerThreadPool dispatches on DiffractionExperiment::GetIndexingAlgorithm(),
which already resolves Auto to a concrete algorithm (FFTW/FFT/FFBIDX) or None;
the pool has no policy to resolve Auto itself. The worker handled a stray Auto
with a dead branch and silently produced no result when the resolved algorithm
had no matching indexer built.
- Document on GetIndexingAlgorithm() that it never returns Auto.
- Throw a clear internal error at the pool boundary if Auto ever arrives.
- In the worker, replace the dead Auto branch with a loud failure for any
resolved algorithm that has no matching indexer (e.g. a GPU algorithm on a
host without a GPU), instead of returning no result silently.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
leonarski_fandClaude Opus 4.8
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