leonarski_fandClaude Opus 5.5
3c5ff3f5df
With -N left to choose, rugnux now confines the process (main thread, the CPUs RestoreThreadAffinity hands back, and what AvailableCpus counts) to the CPUs of the packages its cards hang off, and sizes its threads to them. Nothing changes where the allowed CPUs sit in one package, there is no card or a card's NUMA node is unknown, or the cards' packages already hold every allowed CPU. A mask set from outside (taskset, numactl, a cpuset) is kept: the decision works within it. An explicit -N keeps the old behaviour. On a 48-CPU server with four cards on two of its four NUMA nodes, a rotation run took 24.5-24.7 s confined to those nodes' 24 CPUs against 27.7-27.9 s on all 48 (scaling and merging 8.1 -> 6.2 s), and two larger sets moved 95-99 -> 84-87 s and 131-135 -> 113-115 s. On a single-socket machine this is a no-op. The decision itself (CpusOfGpuPackages) is a pure function, tested on synthetic 4-package, 2-package hyper-threaded, cards-on-both, no-card and restricted-mask topologies. Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01EizBKhTqrAYago9KJG3dA3
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.