| Re: [eigen] [patch] LDLt decomposition with rank-deficient matrices |
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- To: eigen@xxxxxxxxxxxxxxxxxxx
- Subject: Re: [eigen] [patch] LDLt decomposition with rank-deficient matrices
- From: Benoit Jacob <jacob.benoit.1@xxxxxxxxx>
- Date: Sat, 26 Jun 2010 14:05:26 -0400
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Hey Ben,
Thanks for the patches and sorry that I don't have time to look at
them today: we are currently in an incredible rush to get beta1 out
the door, and that means a lot of documentation work. I think that
your stuff is OK to apply post-beta1 anyway. Just wanted to let you
know why we might have long response times these days.
Benoit
2010/6/26 Ben Goodrich <bgokgm@xxxxxxxxxxxxxx>:
> Hi,
>
> On Fri, Jun 25, 2010 at 1:50 AM, Ben Goodrich <bgokgm@xxxxxxxxxxxxxx> wrote:
>>>> 5) I copied-and-pasted a block inside /test/cholesky.cpp and exercised
>>>> the pivot=false option. It seems to work when you do ./check.sh
>>>> cholesky. I did some other tests locally with singular matrices, but
>>>> /test/cholesky.cpp does not seem to have any tests with singular
>>>> matrices, so maybe some should be added?
>>>
>>> why not.
>>
>> I have not added the singular tests yet, but I can do that soon.
>>
>
> This patch does so. It seems to work okay with both the Pivoting and
> NoPivoting options from the previous patch.
>
>>> You should also make the solve function skips the transpositions when
>>> no pivoting has been computed.
>>
>> I have not done this yet either. What did you decide about making a
>> new class versus putting a flag in the class definition?
>
> Gael?
>
> Thanks,
> Ben
>