umfpack error

[Josh Warner]

Final note - umfpack enables mode='cg' in random_walker, which is better 
than brute force but not the fastest or most efficient mode. The multi-grid 
preconditioned conjugate gradient method is: mode='cg_mg'. This is enabled 
by pyamg, which is independent of umfpack and is considerably easier to 
install and use than the method I just described.

Come to think of it, we probably should suppress that warning if import 
pyamg works. It incorrectly implies the user doesn't have the fastest mode 
available.

On Thursday, October 3, 2013 1:21:43 AM UTC-5, Juan Nunez-Iglesias wrote:

Hi guys,
>
> How do I build scipy with umfpack to silence this error:
>
> Exception AttributeError: "'UmfpackContext' object has no attribute '_symbolic'" in <bound method UmfpackContext.__del__ of <scipy.sparse.linalg.dsolve.umfpack.umfpack.UmfpackContext object at 0x101b62050>> ignored
>
> and speed up random_walker? I've just been doing a pip install scipy till 
> now.
>
> Juan.
>
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