CoREAS simulations become much slower if sampling rate is increased or many slices are calculated
If sampling rate for the radio traces is increased or slices in grammage are added, CoREAS becomes much slower. The amount of work to be done in the simulation does not increase with these changes, so it is not obvious why this happens. The most plausible explanation is that caching in the CPU cache becomes worse as more memory needs to be accessed. It would be good to look at this behaviour in a more systematic way and check whether the way that the data are stored in memory could be optimized (rows vs. columns, contiguity of data, these aspects).