Failing dolfin test on iteration numbers

[Martin Sandve Alnæs]

With a fresh install of fenics using fenics-install-all.sh with petsc 3.5.3 I still get this test failure:

>               assert niter < 12
E               assert 15 < 12

la/test_krylov_solver.py:124: AssertionError

This error (and some others) have kept most of the dolfin buildbots red for quite a while now and needs to be sorted out. Any ideas? Asserting niter seems to be less than ideally robust.

[Prof Garth Wells]

You can increase 12 a bit, say to 18.

Checking iteration count is not ideal, but I don't know what a better test would be in this case. The test effectively checks that that the near-nullspace is attached correctly to an AMG preconditioner.

[Martin Sandve Alnæs]

Ok, I'll do that.

[Anders Logg (Chalmers)]

Removing milestone: 1.7 (automated comment)