Parallelization

Calculating a bandstructure over a path of many points in reciprocal space is an embarrassingly parallel task, as the process of calculating the bandstructure at one k-point does not depend on the result at another k-point.

The bandstructure calculation is parallelized using multiprocessing. This can be activated by setting num_threads to an integer other than \(1\) when initializing the instance of MagnonSpectrum.