Comment (by Roland Haas):

This branch:

https://bitbucket.org/cactuscode/cactusutils/branch/rhaas/short_walltime

has a potential solution. It ignores on_remaining_walltime if at startup it is larger or equal to max_walltime ie when TerminationTrigger would cause the run to checkpoint right away.

It does so only at startup so that steering on_remaining_walltime to be larger than max_walltime does cause an immediate termination.

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Ticket URL: https://bitbucket.org/einsteintoolkit/tickets/issues/2346/safety-buffer-of-30-min-for-option