Nicolas Tancogne-Dejean requested to merge revisit_spline_cutoffradius into main Oct 02, 2023

Description

Optimization of the spline-related code: the splines now store their own cutoff radius

The code is now done such that cutoff radii are stored in the splines.
This is evaluated when the routine spline_fit is called.
This improves the initialization time of the code and makes small testsuite input run ~10% faster.

News snippet

Optimization of some spline-related operations.

Checklist

I have checked that my code follows the Octopus coding standards
I have added tests for all the new features added in this request.