leonarski_fandClaude Opus 5
86b7e07131
Every Ceres solve in the project selects a dense linear solver explicitly -- DENSE_QR in PostRefine, RingOptimizer and StillsPartialityRefine, DENSE_NORMAL_CHOLESKY in XtalOptimizer, DENSE_SCHUR in GeometryRefiner -- and none of the seven Solver::Options sites sets dense_linear_algebra_library_type, which defaults to EIGEN. ceres::Covariance, the other SuiteSparse consumer, is never instantiated. So no sparse factorization and no LAPACK call is reachable. Measured rather than argued: an LD_PRELOAD shim exporting dgeqrf_, dpotrf_, dtrtrs_, spotrf_ and METIS_NodeND, each aborting on entry, let a full mx run (1800 frames, index -> refine -> integrate -> scale -> merge) finish with every counter at zero. The change is a no-op on results. Baseline and modified binaries produce byte-identical run.mtz, run.hkl and run.cif on a rotation dataset at -N 1, and two baseline runs give that same signature, so the comparison is meaningful. Only the DATE= stamp in the report differs. What it buys is six fewer shared libraries: libopenblas and libmetis, plus libgfortran, libquadmath, libgomp and libz behind them. rugnux links its own zlib statically -- zero undefined zlib symbols before and after -- so the dynamic libz only ever arrived through OpenBLAS. It also makes the build reproducible across hosts. SUITESPARSE defaults ON and self-disables only when its probe fails, so a machine where SuiteSparse_DIR is not found already compiled CERES_NO_SUITESPARSE while one carrying the SuiteSparse CMake config would not have. Pinning it removes that divergence, and shortens what a cross-compiled aarch64 build has to supply. EIGENSPARSE stays ON, so a sparse solver remains available if one is ever selected, without an external library. Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01SQjneRUssfhi1k9rq8Ts3h
Jungfraujoch
Application to receive data from the PSI JUNGFRAU and EIGER detectors.
All documentation is now placed in docs/ subdirectory and for the current version hosted on Jungfraujoch Read The Docs page.