David Liu <[email protected]> writes: > Not too sure if there's anything I can do about this. Also, I am definately > willing to use other preconditioners. If direct solvers are expensive, what > are the cheaper alternatives?
This is a vast question, a bit like asking what kind of "math" is important for "physics". If you want help, you'll have to explain more about your problem, discretization, and regime.
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