I am Pierre Augier, one of the developer of fluidsim (https://bitbucket.org/fluiddyn/fluidsim).
In order to compare our performance with other pseudo-spectral CFD codes, we tried Dedalus.
I suspect that we are not doing it the right way (see our script https://bitbucket.org/fluiddyn/fluidsim/src/master/bench/dedalus/ns2d_rot.py) because Dedalus is much (approximately 30 times on my computer) slower than the other codes.
Since we are going to include these comparisons in an article, we would like to get the best of Dedalus. Is there something that I can do to get better performance with Dedalus for this very simple case (NS2D over a biperiodic space, 10 time steps)?
I tried with
1024**2 and I got similar results.