2 Commits

Include renames

Author	SHA1	Message	Date
leonarski_fandClaude Opus 5.5	210664f454	Model scale fit: no log ratio at |Fcalc| = 0, and no LM step once the model has underflowed ... Two ways the scale fit's normal matrix went singular and gemmi's jordan_solve threw "Trying to reverse singular matrix. Column 0 is zeroed.", ending the run: 1. The isotropic start (fit_isotropic_b_approximately) takes log(Fobs/|Fcalc|) over the strong reflections. At a phase-restricted reflection whose Fcalc and Fmask share a phase, some solvent pair of the k_sol/b_sol grid can cancel the model exactly in float, |Fcalc + k_sol exp(-b_sol s^2) Fmask| = 0. log(Fobs/0) = inf made that grid point's k_overall and B NaN, every sum of the Levenberg-Marquardt NaN, and the solve failed. This is what stopped three open-arm sets in the output pass after MR on the GPU (the scale fit after model validation's rigid body): one strong reflection, one grid point. The CPU path has the same exposure; which grid point hits an exact zero depends on the last bits of Fcalc, so the --no-gpu run of the same set went through. Such a reflection has no log ratio and is now left out of the start - in the GPU kernel, in FixedSolventFit::Start and, as a marked local change, in gemmi's own fit_isotropic_b_approximately, so the three stay equal and the held-solvent fits are covered too. 2. In FitModelScale's CPU Levenberg-Marquardt (ModelValidation_CCModelUnrelatedModelConfirmsNothing in a CUDA=OFF build): on 66 reflections of an unrelated model the fit walked to k_overall -424 and a B where k exp(-B s^2) |F| underflows at every reflection; the squares in J^T J were all 0 while J^T r kept a residue near 1e-210, which jordan_solve rejects. The fit now ends there, at its best so far, as it would at the lambda limit; that grid point then loses on R. The GPU fit takes the derivatives in float and their squares in double, so it cannot reach this state. Both changes only touch fits that threw before. Byte identity checked against an rc176 build on the standard and inhouse timing benchmarks and on 4nwv, 8tyy, 6oel (p.hkl, p_model.pdb, MTZ data, MR_* report keys). Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01PXc1zD1yxHqaR1DGdCTHL4	2026-10-17 10:48:36 +02:00
leonarski_fandFilip Leonarski	19b135186d	v1.0.0-rc.175 (#85) ... * Rugnux: Processes a collection live while jfjoch_broker writes it (`rugnux <master.h5> <broker URL>`). * Rugnux: Processing starts on the first images and confirms its choices once all are in, so analysis can begin during collection. * Rugnux: Faster processing, especially on servers with several GPUs and CPU sockets and on computers without a GPU (`--no-gpu`, macOS). * Rugnux: Uses much less GPU memory, so large data sets stay on the GPU of smaller cards, and a data set too large for the card is processed on the CPU instead. * Rugnux: On macOS, Bragg integration runs on the Apple GPU. * Rugnux: Better handling of twinning and pseudo-symmetry, with the twin hypothesis written as `<prefix>_twin_<SG>.mtz`, and a wrong `--model` no longer confirms the data or decides the hand. * Rugnux: `--model` accepts predicted (AlphaFold) models and falls back to molecular replacement when the model is not placed as a rigid body (experimental `--mr` forces it), settling space group, hand and twinning and writing a different answer as `<prefix>_mr.mtz`. * Rugnux: Molecular replacement is faster and settles the space group in more cases with several copies in the asymmetric unit. * Rugnux: Deposition-ready mmCIF, a richer report, and numbered steps on the terminal with the full log in `<prefix>_log.txt`; `_P1.mtz`, `--estimate-beam-center` and `--beam-center-search` are removed. * Rugnux: The beam-stop shadow is found correctly on tilted detectors. * Rugnux: Stills files that record a stationary goniometer axis get the default stills geometry refinement. * jfjoch_viewer: "Analyze dataset" uses the same defaults as a bare `rugnux <file>`, and shows the results of processed CBF, marCCD and SMV sweeps. * jfjoch_viewer: The Files panel refreshes on F5 and every few seconds, and the plot type and other selections stay put during live collection. * jfjoch_writer: Memory stays bounded and old data files are closed efficiently on long runs, any failure ends the run in an error state the broker is told about, and the master file appears only after its data files; the ZeroMQ pusher logs when a stalled writer makes it drop images. * Fixes: The TCP image pusher no longer blocks the broker's receiver, GPU out-of-memory failures stop with a clear message, and the XDS plugin masks module and chip edges. --------- Co-authored-by: Filip Leonarski <jungfrau@filips-mac-mini.home> Reviewed-on: #85 Co-authored-by: Filip Leonarski <filip.leonarski@psi.ch>	2026-10-16 15:34:43 +02:00