Comment (by Gabriele Bozzola):

Just to be sure: you are running master of IllinoisGRMHD, not some local version where someone stuck a DECLARE_CCTK_ARGUMENTS into the innermost loop?

Good point. I am running a modified version. Currently, there’s no DECLARE_CCTK_ARGUMENTS in the body of compute_tau_rhs_extrinsic_curvature_terms_and_TUPmunu.C, but I cannot guarantee that it was not there when I did the benchmark. I can probably repeat a smaller scale benchmark to see if the problem is still there.

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Ticket URL: https://bitbucket.org/einsteintoolkit/tickets/issues/2512/enable-detection-of-attribute-pure