leonarski_f
46ad2c10ed
The score's robust fine pass (pseudo-Huber IRLS of ModelScaleBox::robust) on the device, so that refinement on a GPU no longer fits its scale on the host every cycle - with the trials side by side that was a robust grid search on one thread per slot (13-133 s per refinement on the seven timing sets, against 1.7-8 s before the score commit). - ModelScaleGPU: the weights multiply the WSSR and J^T J / J^T r in scale_sums (a weight row per fit, reserved at the first robust fit); robust_residuals / robust_weights kernels; the median of each fit's first residuals taken on the host as FitModelScale takes it (nth_element at n/2, on the fits' threads); LevMarBatch split out of FitBatch so that the rounds restart from where a fit stands. FitSolvent(..., robust) refits the coarse winner in the fine pass, as FitModelScale's robust fit does; the plain fit is unchanged. - ModelScaleGPUPool::Fit(..., robust); its streams at the highest priority: a fit is a chain of small launches the host waits on, and on a card shared with the trials' long kernels each wait queued behind them (refit.scale 58-87 ms -> 14-45 ms per cycle, the result the same to the bit). - Refinement: the main context and every trial slot fit on their pool (robust); the CPU engine keeps FitModelScale's robust fit. The card's fit is FitModelScale's to rounding (float residuals and weights, the steps' anisotropic factor in float), deterministic run to run and whichever engine a fit takes: R-work/R-free of the 14 parity sets on the GPU equal the CPU engine's to 4 digits (largest difference 1.4e-6 on the 3.6 A set). Test: ModelScaleGPUPool_RobustMatchesFitModelScale (one reflection in fifty a 4x outlier, five cells). Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_015CeEGgpKdfkCTJb3YNMJcu (cherry picked from commit d15f048cbd7ed2d6b430f9f9cb5018ca284da8f0)
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.