- IndexerThreadPool::ReleaseIndexers(): each worker drops the indexers it has
built (once its current frame is done) and the allocation pool is trimmed, so
their memory goes back to the card, not only to the pool. A later frame builds
them again, as on first use. A rotation pass calls it once its first pass is
done and again when the leftover-lattice census - the last of its indexing -
ends. Measured on the RTX 5080: the 1.24 GB (pre-pass) / 0.62 GB (later
passes) the pass's pool held through the image pass and the scaling is gone;
4nwv's pre-pass image pass peaks 5.97 instead of 7.18 GB of device memory.
- GPUMerge: the main line holds one through ScaleMergeAndSymmetry. The
speculative geometry probe (GPUWorkBeside(after_merges=true)) waits for it on
a card below the take-turns size (12 GB), where the probe's FFT indexers and
image workers beside the merge's arrays would overfill the card - on a
Windows (WDDM) card that does not fail an allocation but pages it and crawls.
The merge waits for nothing, so nothing the merge waits on (the rotation-scale
walk's probes) can wait in a circle with it. No change on a 16 GB card.
Output unchanged: p.hkl byte-identical on cytc_x10sa, myob_x10sa, 4nwv and
8qaw on this card; also identical with the card's total read as 8.55 GB
(10 / 9 image workers instead of 16) and with 4 image workers, so the worker
count does not change the result.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
leonarski_fandClaude Opus 5.5
1c3a2e202c