Hi everyone,
I am dealing with an irregular mesh done between a big circle and a small
polygone.
looks like I have memory issues when the polygone becomes more than a few
hundreds sides. Is that a typical limitation by fipy ? Is there a way to
deal with big polygonial shapes?
see error bellow,
You do
... value=phi(mesh.getCellCenters()))
This is what causes the problem. You can probably work around it by creating
value yourself.
Fipy uses some vectorized algorithms, which works great, but have the
disadvantage that there must be enough memory to allocate the required
arrays.
In this
Thanks very much Benny for the explanation, but what do you mean by
working in chunks ?
I have a variable newphi which is defined on a newmesh and phi the old
variable which was defined in the original mesh.
how can I copy phi to newphi by chunk ? In any case the huge array needs
to be created
2011/2/8 Julien Derr julien.d...@gmail.com
Thanks very much Benny for the explanation, but what do you mean by
working in chunks ?
I have a variable newphi which is defined on a newmesh and phi the old
variable which was defined in the original mesh.
how can I copy phi to newphi by chunk
do you suggest to do something like
for a in xc:
for b in yc:
newphi.setValue(phi ((array([a]),array([b]) )) )
this is horribly slow...
On Tue, Feb 8, 2011 at 3:52 PM, Benny Malengier
benny.maleng...@gmail.comwrote:
2011/2/8 Julien Derr julien.d...@gmail.com
Thanks
On Feb 8, 2011, at 11:15 AM, Julien Derr wrote:
do you suggest to do something like
for a in xc:
for b in yc:
newphi.setValue(phi ((array([a]),array([b]) )) )
this is horribly slow...
Yep.
Benny is absolutely correct about the problem. Interpolating from one mesh
It works. thanks Jonathan.
Fadoua
On Feb 8, 2011, at 5:35 AM, Fadoua El Moustaid wrote:
Hi all,
I have a problem with defining a mesh in the following way:
normally:
nx = 100
dx = 0.1
mesh = Grid1D(nx = nx, dx = dx)
it is a discretization of the the interval [0, 1]. In my case I
