[petsc-dev] variational inequalities in PETSc

[Jed Brown]

On Mon, 14 Jun 2010 15:42:18 -0500, Barry Smith <bsmith at mcs.anl.gov> wrote:
> 
>   PETSc users,
> 
>     Lois has gotten some funding to add support for variational
>     inequalities to PETSc's SNES nonlinear solvers (basically
>     nonlinear equations with bounds on the variables).

Great news!  This is useful to SISIPHUS as well, in the various
(frictional, large deformation, self) contact problems and basal
hydrology models.

Jed