[SciPy-User] loadmat/savemat sparse with umfpack problem

Robin robince@gmail....
Tue Dec 15 16:27:22 CST 2009


On Tue, Dec 15, 2009 at 7:56 PM, Matthew Brett <matthew.brett@gmail.com> wrote:
> Hi,
>
> On Mon, Dec 14, 2009 at 12:03 PM, Matthew Brett <matthew.brett@gmail.com> wrote:
>> Hi,
>>
>>> The environment where is happens is python 2.5.4, scipy '0.8.0.dev6136'
>>> But it is not limited to sparse, everything seems to be loaded with
>>> writeable false (I'm not sure if this would be causing the problem
>>> with umfpack or if it could cause other problems):
>>
>> Ah - how odd - thanks - that's a bug I should fix...
>
> There's a very general fix in trunk r6141 - could you check whether it
> solves your problem with sparse?

Yep that seems to have done it. Can spsolve saved/loaded sparse with
umfpack and writeable flag is set. Thanks a lot for the speedy fix!

Presumably it was something in the loading rather than saving routine
so previously saved files will load correctly?

Cheers

Robin


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