ffc team mailing list archive

[Kristian Oelgaard <k.b.oelgaard@xxxxxxxxx>]

I tried to run the code against the dev versions of FEniCS and got the
following error after successfully finishing the FFC part:

Traceback (most recent call last):
  File "demo.py", line 15, in <module>
    V = FunctionSpace(mesh, "CG", 1)
  File "/home/oelgaard/software/fenics/dolfin/local/lib/python2.6/site-packages/dolfin/function/functionspace.py",
line 230, in __init__
    FunctionSpaceBase.__init__(self, mesh, element)
  File "/home/oelgaard/software/fenics/dolfin/local/lib/python2.6/site-packages/dolfin/function/functionspace.py",
line 44, in __init__
    ufc_element, ufc_dofmap = jit(self._ufl_element)
  File "/home/oelgaard/software/fenics/dolfin/local/lib/python2.6/site-packages/dolfin/compilemodules/jit.py",
line 44, in mpi_jit
    return local_jit(*args, **kwargs)
  File "/home/oelgaard/software/fenics/dolfin/local/lib/python2.6/site-packages/dolfin/compilemodules/jit.py",
line 87, in jit
    p = form_compiler.default_parameters()
AttributeError: 'module' object has no attribute 'default_parameters'

Kristian

On 21 June 2010 15:42,  <kent-and@xxxxxxxxx> wrote:
>
> Hi, just portet SFC to dolfin-dev and ufl-dev and made some simple
> comparisons with FFC. I
> don't know exactly how representative these are, but I thought I'd try to
> compare
> them for fun.
>
> I have used the following code:
>
> from dolfin import *
> import time
>
> for compiler in ["ffc", "sfc"]:
>
>    for N in [200, 400, 800]:
>
>        parameters["form_compiler"]["name"]=compiler
>        if compiler == "ffc":
>            parameters["form_compiler"]["optimize"] = True
>            parameters ["form_compiler"]["cpp_optimize"] = True
>
>        mesh = UnitSquare(N, N)
>        V = FunctionSpace(mesh, "CG", 1)
>
>        P=6
>        U = Function(V)
>        energy = U**6*(U*U + inner(grad(U), grad(U)))*dx
>
>        v = TestFunction(V)
>        u = TrialFunction(V)
>
>        F = derivative(energy, U, v)
>        J = derivative(F, U, u)
>
>        print ""
>        print "First time"
>        print ""
>        t0 = time.time()
>        A = assemble(J)
>        t1 = time.time()
>        print "First time for ", compiler, " was ", t1 - t0
>
>        print ""
>        print "Second time"
>        print ""
>        t0 = time.time()
>        A = assemble(J)
>        t1 = time.time()
>
>        print "Second time for ", compiler, " was ", t1 - t0
>
>
> With these options SFC is about 3 times faster than FFC. How should I
> optimize FFC ?
>
> Kent
>
>
>
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