6 Nov
2015
6 Nov
'15
11:35 a.m.
On 6 Nov 2015, at 17:39, Barry Smith <[email protected]> wrote:
If it is a true mass matrix in the finite element sense of the word then it should be very well conditioned and one definitely would not use something like GAMG on. Jacobi + CG or maybe SSOR + CG should converge rapidly
That I understand and absolutely agree. It just does not explain why GAMG would fail, especially on 4 cores and not on 8. Regards, Denis.