Too many spaces for MixedFunctionSpace to handle?

Strange. Could you do 'instant-clean' to clear the cache and try again? It
works perfect here.

Kent

On 31 July 2012 03:56, Christopher Laing <
<email address hidden>> wrote:

> New question #204619 on FEniCS Project:
> https://answers.launchpad.net/fenics/+question/204619
>
> Hello everyone,
>
> I am trying to solve a problem in which I need to fix only one element of
> a vector function. I cannot find a way to use DirichletBC to do this, so I
> am having to use many Lagrange multipliers instead.
>
> The following code compiles and solves just fine:
>
> from dolfin import *
>
> mesh = Mesh('mesh_lc=0.100000.xml')
>
> V = VectorFunctionSpace(mesh, "CG", 2, dim=3)
> R = FunctionSpace(mesh, "R", 0)
> W = MixedFunctionSpace([V,R,R,R,R,R,R])
>
> However, when I add another lagrange multiplier, like so:
> W = MixedFunctionSpace([V,R,R,R,R,R,R,R])
>
> I get the following error:
>
> Traceback (most recent call last):
> File "mfstest.py", line 7, in <module>
> W = MixedFunctionSpace([V,R,R,R,R,R,R,R])
> File
> "/maybehome/claing/fenics/FEniCS/lib64/python2.7/site-packages/dolfin/functions/functionspace.py",
> line 453, in __init__
> FunctionSpaceBase.__init__(self, spaces[0].mesh(), element)
> File
> "/maybehome/claing/fenics/FEniCS/lib64/python2.7/site-packages/dolfin/functions/functionspace.py",
> line 77, in __init__
> ufc_element, ufc_dofmap = jit(self._ufl_element)
> File
> "/maybehome/claing/fenics/FEniCS/lib64/python2.7/site-packages/dolfin/compilemodules/jit.py",
> line 66, in mpi_jit
> return local_jit(*args, **kwargs)
> File
> "/maybehome/claing/fenics/FEniCS/lib64/python2.7/site-packages/dolfin/compilemodules/jit.py",
> line 154, in jit
> return jit_compile(form, parameters=p, common_cell=common_cell)
> File
> "/maybehome/claing/fenics/FEniCS/lib/python2.7/site-packages/ffc/jitcompiler.py",
> line 71, in jit
> return jit_element(ufl_object, parameters)
> File
> "/maybehome/claing/fenics/FEniCS/lib/python2.7/site-packages/ffc/jitcompiler.py",
> line 178, in jit_element
> compiled_form, module, form_data, prefix = jit_form(form, parameters)
> File
> "/maybehome/claing/fenics/FEniCS/lib/python2.7/site-packages/ffc/jitcompiler.py",
> line 106, in jit_form
> compiled_form = _extract_form(module, prefix)
> File
> "/maybehome/claing/fenics/FEniCS/lib/python2.7/site-packages/ffc/jitcompiler.py",
> line 207, in _extract_form
> return getattr(module, prefix + "_form_0")()
> AttributeError: 'module' object has no attribute
> 'ffc_form_5aeaa2517dce1c71f4efd396b95ac54760a86102_form_0'
>
> Any help is appreciated.
>
> NB: I am also posting a separate question regarding the use of Dirichlet
> conditions on only one element of a vector function.
>
> Cheers,
>
> Christopher
>
>
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