[Libmesh-users] Variable groups to use blocked matrix (*BAIJ)

[Linda G <li...@na...>]

Dear Libmesh Users,

We are trying to figure out how to set up a Stabilized NS FEM formulation
to work
in a blocked matrix fashion. After reading the documentation we realized
that this boils down to define a
variable group, but we could not find any example (even the Elasticity
ones) that uses the
block matrix (*BAIJ) feature.
Please remember that our formulation is stabilized, so we are using P1P1
and P2P2 for velocity and pressure.
Is the function to define variables groups a member of System class or
DofMap class?
Please if anyone has a working example, or teach us how to do it, we really
appreciate.

Many thanks in advance.
Sincerely,
Linda and Adriano.

-- 

Linda Gesenhues
=================================================
PhD Student
High-performance Computing Center (NACAD)
Federal University of Rio de Janeiro (UFRJ)