[SciPy-Dev] PROPACK Sparse SVD Integration

[Pamphile Roy]

Haha ok I see… well then it should be fine as you said.

Cheers,
Pamphile

> On 19.07.2021, at 16:02, Nicholas McKibben <nicholas.bgp at gmail.com> wrote:
> 
> Hi Pamphile,
> 
> PROPACK is an old library that hasn't received an update in 16 years, so I don't anticipate any issues with staying up to date with any upstream.  The only changes will be our patches to fix known/discovered bugs.
> 
> Thanks,
> Nicholas
> 
> On Mon, Jul 19, 2021 at 12:11 AM Pamphile Roy <roy.pamphile at gmail.com <mailto:roy.pamphile at gmail.com>> wrote:
> This is great! Thanks Nicholas and Matt for this great job!
> 
> Quick question about these modules. Recently we have been adding quite a few. Do we have a plan to keep them aligned (if need be) with their upstream version?
> 
> Cheers,
> Pamphile
> 
>> On 19.07.2021, at 00:41, Nicholas McKibben <nicholas.bgp at gmail.com <mailto:nicholas.bgp at gmail.com>> wrote:
>> 
>> Hi all,
>> 
>> Matt Haberland and I are happy to open PR gh-14433 <https://github.com/scipy/scipy/pull/14433> to close the long-standing issue gh-857 <https://github.com/scipy/scipy/issues/857> through PROPACK integration into scipy.sparse.linalg.svds based on the previous work done by @jakevdp in pypropack <https://github.com/jakevdp/pypropack/>.
>> 
>> This PR includes:
>> - PROPACK wrappers exposing a new 'propack' solver backend for scipy.sparse.linalg.svds
>> - an overhaul and expansion of the scipy.sparse.linalg.svds test suite, documentation, and benchmarks
>> - inclusion of a new PROPACK submodule under the SciPy organization which includes patches for known bugs, Fortran compiler support, and OpenMP issues
>> 
>> Thanks,
>> Nicholas
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