leonarski_f
c982ba4f65
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Each block of the candidate-vector and the cell search sorts its own candidates and merges them into one shared top list under a lock, in the order the blocks happen to get there. The merge compared values only, so where two candidates scored the same - common on the 30-spot seed the stills path tries first, since the score is a sum of trimmed terms - the place went to whichever block merged first. The same frame then indexed to a slightly different lattice, or not at all, from one run to the next. Ties are now broken by the candidate's identity - the sample index for a vector; the cell vector (with its flip), candidate and rotation sample for a cell - which makes the order total, so the merged lists are the top-N of everything whatever the merge order. The blocks' own lists are already in that order: the block radix sort is stable and its samples ascend with the thread index. Measured on a 100k-frame serial set: 4-21 of ~33k indexed frames came out with a different lattice in every pair of runs, which the stills scaling and partiality chain turned into 0.97-0.99 CC1/2 and thousands of observations in or out of the merge. With the fix, three runs at the default thread count and one at -N 8 give the md5-identical merged .hkl; a per-frame dump (spot list, indexer answer, refined lattice) of 20k frames is identical across three runs where it differed in 4-6 frames before. FFBIDXIndexerCPU_MatchesGPU and Portable_FFBIDXIndexerCPU_SyntheticStill pass. No regression test: a repeat-and-compare test on the library's spot lists, threaded, passed before the fix too. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_015CeEGgpKdfkCTJb3YNMJcu (cherry picked from commit 9cff12d652088851b81f6a353ac52aa8318799f2)
Jungfraujoch
Application to receive and analyse data from the PSI JUNGFRAU and EIGER detectors, together with
rugnux, its program for processing stored diffraction data - rotation and serial, macromolecular
and small-molecule - from images to merged reflections.
All documentation is now placed in docs/ subdirectory and for the current version hosted on Jungfraujoch Read The Docs page.