On Sun, Dec 29, 2013 at 6:28 PM, Jane Hung <[email protected]> wrote:
> I'm also getting RuntimeError. To get over this, is there a way to represent
> the system a different way or does the system itself too complicated?

You can also represent the system in an entirely uncoupled manner.
That would reduce the size of memory and provide an alternative
result. If the time step is small enough the uncoupled and coupled
formulations should be the same.

> What do you mean by know the answer?

I just meant some analytical result or behavior such as bounded values
or conserved quantities. A demonstrable logical inconsistency makes
debugging easier.

> I have an idea of what the time
> evolution of the variables should look like in the 2D case, but I don't have
> an analytical solution.

That helps. Could you hold some of the variables fixed (by changing
coefficient values or time steps for some equations) and then evolve
only one or two of the equations for example.

-- 
Daniel Wheeler
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