ffc team mailing list archive

[Anders Logg <logg@xxxxxxxxx>]

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.)

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.)

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

/Anders


On Wed, Feb 15, 2006 at 10:22:08AM -0600, Anders Logg wrote:
> On Wed, Feb 15, 2006 at 01:13:29PM +0100, Johan Jansson wrote:
> > On Wed, Feb 15, 2006 at 10:08:24AM +0100, Marco Morandini wrote:
> > > I write here because I don't know if
> > > this is a dolphin, fcc or fiat problem, or, more likely,
> > > I'm simply doing something wrong.
> > > 
> > > With today version (from mercurial)
> > > of dolphin and ffc, and yesterday's cvs snapshot of FIAT:
> > > 
> > 
> > Hi Marco,
> > 
> > I think FFC isn't synced with the development version of FIAT right
> > now. If you use the latest release version of FIAT (0.2.3) it should
> > work better:
> > 
> > http://www.fenics.org/pub/software/fiat/
> > 
> > Hope this helps,
> >   Johan
> 
> I didn't know. This is an issue for FFC, so I move it to the FFC list.
> 
> I will take a look and see why it doesn't work with the lastest FIAT.
> 
> /Anders
> 
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> 

-- 
Anders Logg
Research Assistant Professor
Toyota Technological Institute at Chicago
http://www.tti-c.org/logg/