Hello Giuseppe,

time is accessible trough the variable "cctk_time" defined by Cactus. You need to have "DECLARE_CCTK_ARGUMENTS" in your code but nothing else is required.

Plesae see:

http://einsteintoolkit.org/usersguide/UsersGuide.html#x1-97000C1.6.2

for further details on which variables are defined by DECLARE_CCTK_ARGUMENTS and CCTK_ARGUMENTS.

Yours, Roland

Dear all,

I am trying to implement a Fortran routine in the Einstein Toolkit that computes a function at every timestep in the evolution. In order to do this I need to pass the time grid function to this routine but I was unable to locate in which thorn this is defined. Can anyone point me in the right direction?

Best regards, Giuseppe