ffc team mailing list archive

[Marco Morandini <morandini@xxxxxxxxxxxxxx>]

Anders Logg wrote:
> I tried the latest FIAT from CVS and the latest FFC from Mercurial
> with the latest Elasticity.form from DOLFIN and it works fine for me.
>
> > From your original report, it looks like the problem may be with
> Python Numeric. Which version do you have installed? (I have 23.8-4
> from Debian/Ubuntu.)

24.0 from Suse 10.0

You are right, it works fine both with 23.8 and 24.2, so I'll stick to 24.2
I've not checked with 24.1.

With 24.0:

> marco@mbdyn-mm:~/Programmi/Dolphin/dolfin/src/modules/elasticity/dolfin>
> python Elasticity.py
> Traceback (most recent call last):
>   File "Elasticity.py", line 39, in ?
>     sigma = E(epsilon(u), lmbda, mu)
>   File "Elasticity.py", line 35, in E
>     Ee = 2.0 * mult(mu, e) + mult(lmbda, mult(trace(e), Identity(d)))
>   File
>   "/home/marco/local/Fenics/lib/python/ffc/compiler/operators.py",
> line 105, in mult
>     vv = Numeric.array(v)
> ValueError: invalid input sequence
>
> Try to print out v (print v) on line 105 in operators.py and see what
> you get. (Then compile with ffc -d1 for debugging and tracebacks.)

print v:
c1

> ffc -d1 Elasticity.form
This is FFC, the FEniCS Form Compiler, version 0.2.5.
For further information, go to http://www/fenics.org/ffc/.
-d 1
Parsing Elasticity.form
Output written to Elasticity.py
Traceback (most recent call last):
  File "/home/marco/local/Fenics/bin/ffc", line 121, in ?
    main(sys.argv[1:])
  File "/home/marco/local/Fenics/bin/ffc", line 81, in main
    execfile(outname, ns)
  File "Elasticity.py", line 39, in ?
    sigma = E(epsilon(u), lmbda, mu)
  File "Elasticity.py", line 35, in E
    Ee = 2.0 * mult(mu, e) + mult(lmbda, mult(trace(e), Identity(d)))
  File "/home/marco/local/Fenics/lib/python/ffc/compiler/operators.py",
line 106, in mult
    vv = Numeric.array(v)
ValueError: invalid input sequence


> You can also try the following in a Python shell and see if it works:
>
> > > > from ffc import *
> > > > from Numeric import *
> > > > element = FiniteElement("Lagrange", "triangle",1)
> > > > v = BasisFunction(element)
> > > > array(v)
> vi0

Same error for me:

> > > from ffc import *
> > > from Numeric import *
> > > element = FiniteElement("Lagrange", "triangle",1)
> > > v = BasisFunction(element)
> > > array(v)
Traceback (most recent call last):
  File "<stdin>", line 1, in ?
ValueError: invalid input sequence


Thanks,

Marco