In the astrophysics group at Nordita, we have been using the Pencil Code The code has been extended to work with GPUs. We now want to test and benchmark this code. It would be very useful to do it before the deadline for the large proposal is over such that we can use this benchmark for the large proposal. We will perform simulations of decaying hydromagnetic turbulence. We already have storage with the project number NAISS 2023/4-16