DG FunctionSpace evalutation takes long time

[Former user]

Today I tried some evaluation on a DG function space (Fenics 1.2.0 and I also tried the nightly build PPA). In my calculations I need to use meshes with a large number of cells (~10mio). At the moment it takes a very long time to create a DG function space (in my distinct case a vector function space) for meshes which contains many cells. For example:

from dolfin import *
set_log_level(DEBUG)
mesh = UnitCubeMesh(100,100,100)
H13 = VectorFunctionSpace(mesh, "DG", 1)

A CG function space takes around about 20 seconds for creation. For DG I aborted the job after 10 minutes. For another mesh I waited more than one hour without termination.

Thanks a lot in advance

[Prof Garth Wells]

Support requests should go to [e-mail]