Array is too big

Question

I'm trying inverse partial differential equations using finite element methods for optimal control problem, while mesh size run up to 60*60 unit square in python coding using window FEniCS, if change mesh size as 64 or 128 error occur as array is too big. Here following error mentioned below:
File "Inverse PDE FEM.py", line 58, in
print'A:',A.array()
File "C:\FEniCS\lib\site-packages\dolfin\cpp.py", line 2957, in array
A = zeros((m_range[1] - m_range[0], self.size(1)))
ValueError: array is too big.
Thank you
Manickam

Comments

This error comes from a numpy call and is not fenics related.

---

Hi Johanhake
I already install numpy for python 2.7. what we do so for this error.

Answer 1

The matrices you try to assemble do not fit your memory anymore. You need base your implementation on sparse arithmetics.