Comment (by Roland Haas):

What to do is likely spelled out (somewhere) in this long ticket. To simplify matters I wrote, couple of days ago, a wiki entry with the steps:

https://docs.einsteintoolkit.org/et-docs/Release_Process#add_gallery_runners

‌

which may help. In principle all can (and should) be done by the runners themselves.

--
Ticket URL: https://bitbucket.org/einsteintoolkit/tickets/issues/2173/test-poisson-equation-example