  Recent work has shown that searches for diffuse radio emission by MeerKAT -
and eventually the SKA - are well suited to provide some of the strongest
constraints yet on dark matter annihilations. To make full use of the
observations by these facilities, accurate simulations of the expected dark
matter abundance and diffusion mechanisms in these astrophysical objects are
required. However, because of the computational costs involved, various
mathematical and numerical techniques have been developed to perform the
calculations in a feasible manner. Here we provide the first quantitative
comparison between methods that are commonly used in the literature, and
outline the applicability of each one in various simulation scenarios. These
considerations are becoming ever more important as the hunt for dark matter
continues into a new era of precision radio observations.
