[Nek5000-users] New multigrid for pn-pn

[nek5000-users at lists.mcs.anl.gov]

Dear Neks,

We've just uploaded a new multigrid solver for the Pn-Pn
formulation that appears to be quite a bit faster than
the previous Schwarz-based solver.

We'd welcome any feedback regarding bugs and noticeable
performance gains (or losses).

Note that it has not yet been implemented for Pn-Pn+axisymmetry.

Paul