On 21. okt. 2013 15:13, Jed Brown wrote: > > Okay, but this has no spatial derivatives?
Correct. But the code is written such that (in our framework) a legacy serial code which has spatial derivatives in the RHS can be plugged straight in. I don't have any code that I can share with the world that includes spatial derivatives in the RHS though. I guess the heat equation would be fairly straight-forward. > > Whatever you like. Note that there are already some related examples in > src/ts/examples/tutorials/advection-diffusion-reaction/ > Yes, I've seen them, but since they include TS stuff like IMEX etc., they're a bit more complicated for a PETSc noobie. It's sometimes hard to know which bits are TS specific and which are DM specific (although I must say that PETSc has remarkably good organization and "namespacing"). That's why I wrote the example for my own sake and for my colleagues.
