[FLASH-USERS] parameters changes allowed on restart?

[Andrew Szymkowiak]

Okay, I managed to get the integration step size to begin auto changing 
again by replacing the code in

source/physics/Hydro/HydroMain/split/MHD_8WV/Hydro_init.F90

that says:

  if (.not.dr_restart) then
     hy_dtmin = HUGE(hy_dtmin)
  else
     hy_dtmin = dr_dt
  endif

with just:

hy_dtmin = HUGE(hy_dtmin)

That is, with my combination of units, I think the driver is not 
properly setting dr_dt on restarts - I'll leave it to the experts to 
decide how this should really be fixed...

Thanks,
     Andy S.

John ZuHone wrote:
> Andrew,
>
> So long as the timestep is not restricted by either dtmin or dtmax it will always be whatever the CFL condition sets it to, so long as the only physics included in the simulation that sets timesteps is hydro. So if it is less than your current dtmax increasing dtmax will not change the behavior.
>
>