heyoka.py 0.18.0

This new version of heyoka.py comes with a big new feature and several fixes.

Automatic parallelisation 🚀

heyoka.py is now capable of automatically performing multithreaded fine-grained parallelisation within an individual integration step. Parallel mode is easily enabled, and it can lead to substantial speed-ups, especially for large ODE systems and/or extended precision computations.

A tutorial exploring this new feature is available here:

https://bluescarni.github.io/heyoka.py/notebooks/parallel_mode.html

Astrodynamics 🪐

• It is now possible to construct (N+1)-body problems - that is, N-body problems expressed in the reference frame of one of the bodies (rather than in an inertial reference frame).
• A fast Kepler solver (supporting both scalar values and NumPy arrays) is now available.

Fixes & clean-ups 🐞

• Several small issues in the implementation of propagate_grid() were identified and fixed.
• heyoka.py now depends on the Intel TBB library.
• heyoka.py does not depend any more on the spdlog library.

The full changelog, as usual, is available here:

https://bluescarni.github.io/heyoka.py/changelog.html