PyAT 0.7.1

Main changes

• GPU tracking is now implemented, thanks to @JeanLucPons,
• The computation of diffusion matrices is now modular and is integrated in the C integrators,
• Full support (read/write) of MAD8 and MAD-X files,
• Preliminary support (read/write) of Elegant files,
• Introduction of Observable objects. Together with Variable objects, they provide a unified and expandable set of objects which can be used in matching, response matrices, plots, parameter scans…
• Full support of element rotations and translations,
• Computation of generic response matrices.

New matching:

in the next version the matching method will be replaced by a new incompatible one. The transition to the new matching can start with this version by using the following import sequence:

from at.future import RefptsVariable, VariableList, match

The new matching try to satisfy constraints expressed in an ObservableList by varying the variables in a VariableList.

New features

• Gpu tracking by @JeanLucPons in #920
• Load MAD-X files by @lfarv in #770
• Observable objects by @lfarv in #738
• Loading of MAD and Elegant files by @lfarv in #844
• Modular computation of diffusion matrices by @lfarv in #742
• Implementation of a new function to rotate an element by @SebastienJoly in #921
• Improved matching by @lfarv in #892
• Response matrices by @lfarv in #893
• RDT observables by @lfarv in #909

Bug fixes

• Bug issue792 by @ZeusMarti in #793
• New test of the average optics values by @lfarv in #794
• use _Complex_I instead of I by @swhite2401 in #802
• Introduction of the function plot_RF_bucket_hamiltonian by @SebastienJoly in #784
• Documentation improvement by @lfarv in #797
• Fix atpass error handling by @lfarv in #798
• Add tune resonances plot by @oscarxblanco in #809
• Always attempt to import at.plot by @lfarv in #812
• fix plot_tune_diagram from future import annotations by @oscarxblanco in #813
• Longitudinal aperture by @SebastienJoly in #782
• check len(refpts) > 2 after removing zero length elements in get_lifetime() by @swhite2401 in #801
• Track all refpts in one track function call in acceptance calculations by @swhite2401 in #811
• Bug Fix: Wiggler diffusion matrix by @joanarenillas in #759
• Add feeddown polba by @oscarxblanco in #815
• Fix error messages in load_madx by @lfarv in #824
• Fix wiggler radiation by @lfarv in #822
• Fix saving lattices in m-files by @lfarv in #832
• concat changed to concatenate in pyat/at/physics/avlinopt by @simoneliuzzo in #834
• Fix LatticeObservable by @lfarv in #842
• Fix the "repr" representation of Elements (after numpy2.0) by @lfarv in #843
• fix uninitialised random generators in elempass by @lfarv in #845
• turn off quantdiff in ohmi_envelope by @swhite2401 in #840
• Tune, chromaticity and detuning periodicty by @swhite2401 in #837
• Fix "fastring" by @lfarv in #849
• Access to the lattice energy in integrators by @lfarv in #816
• Fix a bug in load_madx by @lfarv in #851
• Suppress a wrong warning when using linopt in beamline mode by @lfarv in #853
• Documentation of plotting functions by @lfarv in #856
• Fix docstrings in the acceptance.py module by @lfarv in #855
• Update Documentation by @lfarv in #857
• Set "periodicity" to 1 by default by @lfarv in #859
• Update GitHub actions by @lfarv in #861
• Compute RDTs by @swhite2401 in #821
• Tune documentation for dark mode by @lfarv in #864
• New matching by @lfarv in #806
• Fix ohmienvelope with wigglers by @lfarv in #870
• Documentation: new figure for the AT coordinate system by @lfarv in #876
• Set the wiggler indivisible by @lfarv in #875
• Fix the energy loss computation by @lfarv in #877
• Upgrade tests for new GitHub runners by @lfarv in #878
• Fix OpenMP compilation by @lfarv in #882
• Improvement of AT build process by @lfarv in #889
• Improve radiation_parameters by @lfarv in #888
• Fix OpenMP compilation bug by @lfarv in #891
• New element properties: dx, dy, tilt by @lfarv in #902
• Fix the energyloss computation for simple ring by @lcarver in #911
• Add non-linear chromaticity to DeltaQPass by @lcarver in #912
• Allow setting the seed of random generators by @lfarv in #905
• Fix atlinopt with harmonic cavity by @lfarv in #917
• Setting the nominal frequency on 6d lattices by @lfarv in #923
• Reorganise the rotation and translation functions by @lfarv in #932

New Contributors

• @joanarenillas made their first contribution in #759

Full Changelog: pyat-0.6.1...pyat-0.7.1