New version of cuDSS

[mipals]

Hi there,

There is now a 0.4.0 release of cuDSS. Any plans of updating the wrapper? If not I will give it a go.

Cheers,
Mikkel

[amontoison]

Hi @mipals, I can do that today.
I was not aware of a new release!

[mipals]

Sounds good! I think it was realized here in December so it is also a fairly new release 😄

[amontoison]

For information, it was release yesterday (2024-12-10).
They added batch sparse linear solvers in the new release, a feature that we requested 👍

A new release of CUDSS_jll.jl is coming: JuliaPackaging/Yggdrasil#9990

[mipals]

Thanks for the info. I am mostly interested in the improved reordering as my application seems to spend a lot of time in the initial phase. What is the main application for batching?

[amontoison]

@mipals I have opened a PR, you use the related branch if you want to test the new version but an update of CUDSS.jl.

For the batch, you could have systems where the left-hand side depends on a paramater \alpha and you want to solve it for various values of \alpha.
The idea is to use this batch linear solver in a batch optimization solver where you can solve the same optimization problem with a few variants.