On 12/6/06, Jianing Shi <js2615 at columbia.edu> wrote: > I have a question about the usage of periodic DA. > > 1) In function DACreate2d( ), there is an argument about > DAPeriodicType. I assume the mentioned periodicity is for the > global array, not for local grid?
Yes. > 2) If I use the periodic type for DA, together with SNES to solve a > system, when I implement the FormFunctionLocal, I need to > explicitly implement the boundary conditions? Or does DA periodic > type has some built-in functionality? I am not sure what boundary conditions you mean. If it is periodic, there should be no conditions on that boundary. Matt > Thanks, > > Jianing -- "Failure has a thousand explanations. Success doesn't need one" -- Sir Alec Guiness
