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[Kent-Andre Mardal <kent-and@xxxxxxxxx>]

The following works fine on my system:


from dolfin import *

mesh = UnitSquare(12,12)

V = FunctionSpace(mesh, "CG", 1)
scalar1 = Function(V)

VV = VectorFunctionSpace(mesh, "CG", 1)
u = TrialFunction(VV)
v = TestFunction(VV)

a = dot(u,v)*dx
L = dot(grad(scalar1), v)*dx

problem = VariationalProblem(a,L)
c = problem.solve()


On 25 February 2011 19:50, JJ Jiang <question146882@xxxxxxxxxxxxxxxxxxxxx>wrote:

> Question #146882 on DOLFIN changed:
> https://answers.launchpad.net/dolfin/+question/146882
>
> JJ Jiang posted a new comment:
> Hi Kent,
>   Thanks for the answer. I used the following script as you suggested. But
> the compilation failed. Why?
>
> VV = VectorFunctionSpace(mesh, "CG", 1)
> u = TrialFunction(VV)
> v = TestFunction(VV)
>
> a = dot(u,v)*dx
> L = dot(grad(scalar1), v)*dx
>
> problem = VariationalProblem(a,L)
> c = problem.solve()
>
> Could you please guide me further on that?
>
> The error message is the following:
> In instant.recompile: The module did not compile, see
> '/tmp/tmpCJTm9Y2011-2-25-12-46_instant/form_6d04c7c3797b189ed231948384237bf909130ad7/compile.log'
> Traceback (most recent call last):
>  File "demo.py", line 38, in <module>
>    problem = VariationalProblem(a,L)
>  File
> "/usr/local/lib/python2.6/site-packages/dolfin/fem/variationalproblem.py",
> line 40, in __init__
>    self.L = Form(L, form_compiler_parameters=form_compiler_parameters)
>  File "/usr/local/lib/python2.6/site-packages/dolfin/fem/form.py", line 34,
> in __init__
>    (self._compiled_form, module, self.form_data) = jit(form,
> form_compiler_parameters, common_cell)
>  File
> "/usr/local/lib/python2.6/site-packages/dolfin/compilemodules/jit.py", line
> 44, in mpi_jit
>    return local_jit(*args, **kwargs)
>  File
> "/usr/local/lib/python2.6/site-packages/dolfin/compilemodules/jit.py", line
> 103, in jit
>    return jit_compile(form, parameters=p, common_cell=common_cell)
>  File "/usr/local/lib/python2.6/dist-packages/ffc/jitcompiler.py", line 58,
> in jit
>    return jit_form(object, parameters, common_cell)
>  File "/usr/local/lib/python2.6/dist-packages/ffc/jitcompiler.py", line
> 107, in jit_form
>    cache_dir = cache_dir)
>  File "/usr/local/lib/python2.6/dist-packages/ufc_utils/build.py", line 63,
> in build_ufc_module
>    **kwargs)
>  File "/usr/local/lib/python2.6/dist-packages/instant/build.py", line 474,
> in build_module
>    recompile(modulename, module_path, setup_name, new_compilation_checksum)
>  File "/usr/local/lib/python2.6/dist-packages/instant/build.py", line 100,
> in recompile
>    "compile, see '%s'" % compile_log_filename)
>  File "/usr/local/lib/python2.6/dist-packages/instant/output.py", line 49,
> in instant_error
>    raise RuntimeError(text)
> RuntimeError: In instant.recompile: The module did not compile, see
> '/tmp/tmpCJTm9Y2011-2-25-12-46_instant/form_6d04c7c3797b189ed231948384237bf909130ad7/compile.log'
>
> --
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