Hi all, At the yt workshop 2025, Matt and I discussed how to add a function to yt to analyse the matter power spectrum of a cosmological simulation.
Based on Matt's suggestions, I tried using mpi4py-fft to handle the FFT with MPI. However, this library has specific requirements for the data decomposition. So, I need to understand how yt handles domain decomposition in order to proceed. Could someone point me to the relevant part of the code or documentation that describes yt’s domain decomposition strategy? Alternatively, any advice on how to interface yt’s data layout with mpi4py-fft would be greatly appreciated. Thanks in advance! Best regards, Edward
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