[Getfem-users] memory leakage somewhere in getfem::mesh_im_level_set

[Andriy Andreykiv]

Dear Yves and Jullien,

        I have a problem with memory leakage in my Getfem based program.
I'm running a nonlinear calculation with iterative procudere. During the 
execution of the program (which actually poroduces accurate results) the 
memory of the program steadiliy increases from around 50MB till it exhausts  
the resourses of my computer (3GB). 
        First I suspected that 

getfem::pfem ifem=getfem::new_interpolated_fem(mf_electric,mim_line);

looses the memory somehow, but I do properly finish the iteration with

getfem::del_interpolated_fem(ifem);

so that's was not the reason. After a carefull debugging I noticed that 
execution of the line:
getfem::asm_stiffness_matrix_for_homogeneous_laplacian(Kff, mim_ls, 
mf_electric)  (where  mim_ls  is a local "mesh_im_level_set" object) takes up 
a lot of memory  and this memory is not realased when local variable mim_ls 
looses scope (after the complition of the iteration). To be more clear, 
mim_ls is a local variable in the iteration loop, used to integrate a problem 
with updated level set.

Is there chance that the object getfem::mesh_im_level_set does not release all 
the allocated memory after its distruction?

Thank you very much in advance,
                                                        Andriy
-- 
__________________________________________
Andriy Andreykiv (PhD, MSc)
Delft University of Technology
Faculty of Mechanical Engineering 
Fundamentals of Microsystems
Mekelweg 2
2628 CD  Delft
The Netherlands

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