Von: firedrake-bounces@imperial.ac.uk [mailto:firedrake-bounces@imperial.ac.uk] Im Auftrag von Miklós Homolya
Gesendet: 23 March 2017 13:18
An: firedrake@imperial.ac.uk
Betreff: Re: [firedrake] Deactivate UFL Warning

This happens when you request a DG element (degree > 0) on an extruded quadrilateral mesh. Since there is an ambiguity (did you mean dQ or dPc?), the warning tells you that it picked the dQ element. If this is triggered from your user code, just write DQ instead DG or DP as the element family name.

[Buesing, Henrik] I am doing:

meshbase = RectangleMesh(Nx, Ny, Lx, Ly, quadrilateral=True)
mesh = ExtrudedMesh(meshbase, Nz, Delta_z)
horiz_elt = FiniteElement("DG", quadrilateral, 0)
vert_elt = FiniteElement("DG", interval, 0)
elt = TensorProductElement(horiz_elt, vert_elt)
DG1 = FunctionSpace(mesh, elt)

The element I want is dQ0. When I replace DG by DQ, I get: “ValueError: DQ is supported, but handled incorrectly”.

Otherwise you may try to lower the logging level for UFL, so these messages remain hidden.

[Buesing, Henrik] How would I do that?

parameters["ufl_options"]["log_level"] = "ERROR" does not work…

Thank you!

On 23/03/17 12:12, Buesing, Henrik wrote:

Dear all,

I am getting a lot of

UFL:WARNING Discontinuous Lagrange element requested on quadrilateral * interval, creating DQ element

Should I care? How can I deactivate these warnings?

Thank you!

Henrik

--

Dipl.-Math. Henrik Büsing

Institute for Applied Geophysics and Geothermal Energy

E.ON Energy Research Center

RWTH Aachen University

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Mathieustr. 10            |    Tel +49 (0)241 80 49907

52074 Aachen, Germany     |    Fax +49 (0)241 80 49889

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http://www.eonerc.rwth-aachen.de/GGE

hbuesing@eonerc.rwth-aachen.de

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