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[Andreas Naumann <question161420@xxxxxxxxxxxxxxxxxxxxx>]

New question #161420 on UFL:
https://answers.launchpad.net/ufl/+question/161420

Hi @all

i try to install fenics with ufl 0.9.0 on our hpc cluster using python 2.7.1.

As a small test, i used the poisson example
element = FiniteElement("Lagrange", triangle, 1)

u = TrialFunction(element)
v = TestFunction(element)
f = Coefficient(element)
g = Coefficient(element)

a = inner(grad(u), grad(v))*dx
L = f*v*dx + g*v*ds

This small example leads to the following problem with
ufl-analyse -w 1 Poisson.ufl

Loading form file 'Poisson.ufl'
Invalid object type <class 'ufl.algorithms.formdata.FormData'>
Traceback (most recent call last):
  File "/home/anaum/deimos/local/bin/ufl-analyse", line 96, in <module>
    write("\n\nForm tree formatting (preprocessed):\n", tree_format(preprocessed_form))
  File "/home/anaum/deimos/local/lib/python2.7/site-packages/ufl/algorithms/printing.py", line 130, in tree_format
    error("Invalid object type %s" % type(expression))
  File "/home/anaum/deimos/local/lib/python2.7/site-packages/ufl/log.py", line 135, in error
    raise self._exception_type(self._format_raw(*message))
ufl.log.UFLException: Invalid object type <class 'ufl.algorithms.formdata.FormData'>

The created logfile Poisson.ufl.log has the content

Form data:
 None

Form pretty-print (original):
 { (grad(v_{-1})) : (grad(v_{-2})) } * dx0

Form pretty-print (preprocessed):
 Name:                             'a'
Rank:                             2
Cell:                             <triangle cell in R2>
Topological dimension:            2
Geometric dimension:              2
Number of facets:                 3
Number of coefficients:           0
Number of cell domains:           1
Number of exterior facet domains: 0
Number or interior facet domains: 0
Number of macro cell domains:     0
Number of surface domains:        0
Arguments:                        '[v_0, v_1]'
Coefficients:                     '[]'
Argument names:                   '[v, u]'
Coefficient names:                '[]'
Unique elements:                  'CG1(?)'
Unique sub elements:              'CG1(?)'


Form representation (original):
 Form([Integral(Inner(Grad(Argument(FiniteElement('Lagrange', Cell('triangle', Space(2)), 1, None), -1)), Grad(Argument(FiniteElement('Lagrange', Cell('triangle', Space(2)), 1, None), -2))), Measure('cell', 0, None))])

Form representation (preprocessed):
 <ufl.algorithms.formdata.FormData object at 0x2b98a0542650>

Form tree formatting (original):
 Form:
    Integral:
        domain type: cell
        domain id: 0
        integrand:
            Inner
            (
                Grad
                    Argument(FiniteElement('Lagrange', Cell('triangle', Space(2)), 1, None), -1)
                Grad
                    Argument(FiniteElement('Lagrange', Cell('triangle', Space(2)), 1, None), -2)
            )

If I use the same with the fenics form compiler (version 0.9.9), I get the error:

Traceback (most recent call last):
  File "/home/anaum/deimos/local/bin/ffc", line 176, in <module>
    sys.exit(main(sys.argv[1:]))
  File "/home/anaum/deimos/local/bin/ffc", line 157, in main
    compile_form(ufd.forms, ufd.object_names, prefix, parameters)
  File "/home/anaum/deimos/local/lib/python2.7/site-packages/ffc/compiler.py", line 135, in compile_form
    analysis = analyze_forms(forms, object_names, parameters)
  File "/home/anaum/deimos/local/lib/python2.7/site-packages/ffc/analysis.py", line 49, in analyze_forms
    forms = tuple(_analyze_form(form, object_names, parameters, common_cell) for form in forms)
  File "/home/anaum/deimos/local/lib/python2.7/site-packages/ffc/analysis.py", line 49, in <genexpr>
    forms = tuple(_analyze_form(form, object_names, parameters, common_cell) for form in forms)
  File "/home/anaum/deimos/local/lib/python2.7/site-packages/ffc/analysis.py", line 117, in _analyze_form
    info(str(form.form_data()))
AttributeError: 'FormData' object has no attribute 'form_data'

Currently, I don't know if the problem comes from the ffc or from ufl. 
Do you have any hint, or idea to solve the problem? 
If you need more information, I will see if I can provide them.

Regards
Andreas

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