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[JJ Jiang <question146882@xxxxxxxxxxxxxxxxxxxxx>]

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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