The square root free Cholesky factorization

[DavisMan]

The Attached code calculates the square root free Cholesky factorization (LDL'), it is very useful to decompose matrices and in my specific case, to make observability analysis within electrical distribution networks. I'm publishing it because LV counts with other kind of decompositions like the LU decomposition, very useful but for my case, the values delivered by LDL' are more accurate and easier to calculate.

Best regards

Davis

[ttrr]

Hi Davis,

You can post this to NI Idea Exchange.

http://forums.ni.com/t5/NI-Idea-Exchange/ct-p/ideas

We will consider your use case and might add a function for LDL' decomposition into Linear Algebra palette later.

Thanks!

[DavisMan]

Ok,

I'll make the post in the other forum.

Thanks

Best regards

[cirrusio]

Davis,

How easy do you think it would be to port this over to the FPGA environment?  Just a quick inspection shows the NaN check and I am not sure how this plays into the porting of the code. 

This is exactly what I have been working on today and would have saved myself some time if I had known someone smarter than myself had already pieced this out. 😉  Thanks a lot!

Matt

[altenbach]

Just for completeness, here's the link to the mentioned idea.

[DavisMan]

Hi Matt,

Well, i'm going to work on that and find a way to put it into the LabVIEW FPGA language because all the floating point operations can be done using fixed point variables, so, when i have the code i will publish it.

Regards

Davis

[cirrusio]

Davis - I am currently looking at your code now, so I will let you know if I have something.  m