[petsc-users] ILUTP

[Torquil Macdonald Sørensen]

On 30/10/13 16:48, Matthew Knepley wrote:
> On Wed, Oct 30, 2013 at 8:58 AM, Torquil Macdonald Sørensen
> <torquil at gmail.com <mailto:torquil at gmail.com>> wrote:
>
>     Thanks Matthew!
>
>     The problem I'm working on is the Dirac equation, in various
>     number of dimensions. I'm going to take a stab at multigrid
>     preconditioning.
>
>
> My limited knowledge of the Dirac Equation tells me that it is a
> relativistic wave equation, and thus hyperbolic, which is quite
> difficult for
> MG (but doable with a bunch of work). How do you have this formulated?
>

I'm doing time-stepping at the moment, so I'm solving an elliptic
equation at each time step. No fancy hyperbolic multigrid work :-)

Best regards
Torquil Sørensen

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