TS

[Manav Bhatia]

>
>>
>> -- setting KSP and PC types
>>    From what I understand, I can set up the KSP and PC type of the
>> transient solver, which will be used only if I specify an A matrix
>> for the problem. In addition, I can independently set the KSP and PC
>> type of the SNES used by TS, which is used by the time solver.
>
> The solver is only used if you specify an implicit method. The KSP  
> and PC
> type are used by either a SNES or just the KSP itself depending on  
> whether
> the problem is nonlinear.
>

So, if I have a problem with a LHS matrix, and I want to use an  
explicit method, then do I have to invert the matrix before asking  
the solver to run? i.e. the solver will not do that for me?

Thanks,
Manav