Comment (by Gabriele Bozzola):

I am using vtune, and I would expect the Intel compiler to work well with the Intel profiler, but maybe the various macros in Cactus are throwing it off.

This is the reported callee tree:

The time in the ones that are 0.00% is not identically 0, so it is not that everything was erroneously attributed to the first entry.

I can test a TOV star with McLachlan to see if this is still there.

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