Aquila-Consortium/simbelmyne
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  • 0.6.0 52fb233a7b

    0.6.0 Stable

    Florent Leclercq released this 2026-05-14 15:36:36 +00:00 | -1255 commits to main since this release

    Simbelmynë 0.6.0

    Released: 2026-05-14

    New features

    COCA — frame-of-reference simulation mode

    New EvolutionMode=4 integrates residual (non-linear) particle momenta in an external reference frame supplied at each kick/drift step. The L_minus/L_plus operators apply the frame transformation; residual kicks and drifts (p_res, dx_res) are written separately from the LPT background. Subsampling of force calculations is supported via the timestepping framework.

    Python TimeStepping class (pysbmy/timestepping.py)

    Full Python object model for kick/drift schedules:

    • construct, concatenate, and compare TimeStepping objects
    • remove individual timesteps; start from a later snapshot (InputPMCOLASnapshot)
    • subsampling of force evaluations per step
    • new parameters: IsNonZeroInitialMomenta, InputInitialMomenta
    • NoGravity option removed (superseded by per-step force subsampling)
    • snapshot=True default on concatenation

    Tutorial notebooks

    Six Jupyter notebooks in examples/ replace the old standalone .py scripts:

    1. Simulations and synthetic surveys (updated with Press–Schechter selection function)
    2. Timestepping
    3. Frame of reference (COCA)
    4. Density estimators
    5. Dark matter phase-space sheet (DMSHEET)
    6. Cosmic web classifiers

    CITATION.bib added to the repository root.

    Bug fixes

    • Laplacian stencil (libSBMY): incorrect finite-difference stencil corrected
    • Exponential smoothing of Laplace operator's Green's function: wrong smoothing factor fixed
    • Linux free-RAM query (get_free_ram): MemAvailable field now parsed correctly on Linux
    • kmodulus in aux_get_crosscorrelation_fs: wrong wave-number modulus used in cross-correlation
    • get_index_4D: off-by-one index bug corrected
    • get_Nthreads_from_available_memory: incorrect thread count estimate fixed
    • sCOLA hotfix: erroneous force evaluation at the end of sCOLA integration removed
    • COCA L_plus operator: correct output of p_ext(a_f); residual momentum set to zero when force calculation is skipped
    • Writing last kick: condition for emitting the final kick step corrected; drifts now written even when L_plus is not called
    • g_plus Python wrapper (cosmology.py): incorrect argument passing fixed
    • Slice tool (pysbmy/tools/): index error and colormap-addition value error fixed

    LONGIDS / LARGEGRIDS

    Full correctness pass across C and Python layers: particleID_t, cellIndex_t, fourierMode_t widened consistently; OpenMP reduction pragmas fixed in diva.c; Python header struct excludes fill/names fields when LONGIDS is active.

    Platform support

    • macOS Apple Silicon (M1): compiler flags and FFT linkage updated
    • Large-grid cold-start fixes: cold fix for large grids applied in two rounds; safer memory management; user-visible error message when Mesh/ParticleMesh/Particles exceeds compile-time limits

    Infrastructure

    • pyproject.toml added: PEP 517 build backend (setuptools≥64) eliminates the setup.py develop deprecation warning on pip install -e .
    • pkg_resources replaced by importlib.resources (Python ≥ 3.9)
    • Compilation options (-DLONGIDS, -DLARGEGRIDS, etc.) now forwarded to pysbmy at install time
    • LPT displacements I/O routines added; InputPsiLPT replaces InputPsi in parameter files
    • OutputInitialPos, OutputInitialVel, OutputPsi1, OutputPsi2 parameters removed (redundant)
    • Psi1/Psi2 written when WriteReferenceFrame=1
    Downloads
  • 0.5.0 dcc801f8a5

    0.5.0 Stable

    Florent Leclercq released this 2023-10-02 16:50:16 +00:00 | -1129 commits to main since this release

    Downloads
  • 0.4.0 df28f7420c

    0.4.0 Stable

    Florent Leclercq released this 2020-05-05 19:39:27 +00:00 | -1055 commits to main since this release

    Downloads
  • 0.3.2 d94523dab7

    0.3.2 Stable

    Florent Leclercq released this 2020-04-14 16:35:15 +00:00 | -860 commits to main since this release

    Downloads
  • 0.3.1 2c47e8d443

    0.3.1 Stable

    Florent Leclercq released this 2020-01-25 18:16:20 +00:00 | -840 commits to main since this release

    Downloads
  • 0.3.0 d6568ab1b0

    0.3.0 Stable

    Florent Leclercq released this 2020-01-15 16:16:16 +00:00 | -822 commits to main since this release

    Downloads
  • 0.2.0 eda30021c9

    0.2.0 Stable

    Florent Leclercq released this 2019-07-17 15:36:12 +00:00 | -804 commits to main since this release

    Downloads
  • 0.1.1 4ba006b49f

    0.1.1 Stable

    Florent Leclercq released this 2019-02-05 11:47:49 +00:00 | -777 commits to main since this release

    Downloads
  • 0.1.0 d174a4b2bb

    0.1.0 Stable

    Florent Leclercq released this 2018-12-28 16:15:42 +00:00 | -775 commits to main since this release

    Downloads