[Coin-ipopt] Allocation Problem

[Christoph Brune]

Hello,

I use Ipopt(3.2.4) for solving tasks in mathematical images processing 
(especially optical flow computation).
A simple formulation of a task only minimizes an object function without 
any constraints. Up to an image size of approximately 200x200 (that 
means: data input of size 736KB) everything works fine. [In this case 
the problem has got 971.232 nonzeros in lagrangian hessian and 122.409 
variables.] Now trying to process larger input-images (384x384) 
according to data input of size 2654KB the following error occurs: 
"Ipopt 3.2.4: malloc(12816) failure: ran out of memory." Obviously, the 
C-method cannot allocate more memory for my input file. (The computer 
has access to 2 GB main memory.)
Do you have any ideas?

Regards
Christoph Brune