Table 5 CPU hours (CPUH) spent by the simulations of the 2D magnetised torus at uniform resolution and fraction of that time spent by the equivalent AMR runs up to \(\pmb{t=2{,}000\mbox{ M}}\)

Grid size \(\boldsymbol{(N_{r} \times N_{\theta})}\)

CPU time uniform [CPUH]

Equiv. AMR time fraction [ \(\boldsymbol{\epsilon_{\mathrm{t}}=0.1}\) ]