[Getfem-users] pivot # is too small!

[Nima Noury]

Hello all,

I'm trying to solve a 3d poisson equation on a mesh generated by gmsh.  
I receive this warning (about 100 times, for # = 1 to 100)

Level 2 Warning in ../../src/gmm/gmm_precond_ilu.h, line 182: pivot #  
is too small

if I decrease the size of mesh to about 180000 elements, I receive an  
answer in some minutes, however I still get the same warning.
first of all, what does this warning mean and how can I prevent it?
second, if I receive this warning can I still trust the result?

Kind Regards,
Nima