Hi,

On Tue, Aug 29, 2017 at 01:59:01PM +0200, Ian Hinder wrote:

In the Trigger thorn, is it possible to set a trigger on cctk_time, so that a certain parameter is steered at a particular time?  It looks like it only supports Cactus grid variables and scalars.

The thorn does indeed have that limitation, but it also contains a workaround for exactly your case: it's own variables trigger_cctk_iteration and trigger_cctk_time, which are populated with the cactus values before all checks, so you can trigger on those.