Dear Karan Handa,
Thank you for your interest. I am just discovering this email now; for some
unknown reason it had gone to my spam folder... fortunately you had the good
idea to also write to Clément's and my personal email addresses, so I answered
you there. I hope our answer helped you finalize your application (if you are
still interested).
Best regards,
Vincent Neiger
On Tue, 2023-03-28 at 13:57 -0700, 'Karan Handa' via sage-gsoc wrote:
> Greetings!
>
> I've been working on familiarising myself with with finite field linear
> algebra implementations in Sage and fflas-ffpack and would like to reach out
> to the prospect mentors (Clément Pernet and Vincent Neiger) in order to
> understand the scope of the project. I've explored the routines fflas-ffpack
> offers through these papers -
>
> https://dl.acm.org/doi/pdf/10.1145/1391989.1391992
> https://dl.acm.org/doi/10.1145/1005285.1005304
>
> these course notes on dense and sparse linear algebra -
>
> https://courses.csail.mit.edu/18.337/2006/book/
>
> as well as the documentation given in the fflas-ffpack repository. I'm
> confused about which particular fflas-ffpack routines should be used in Sage
> as the GSoC project. Currently, only the vector-matrix multiplication, matrix-
> matrix multiplication and echelonize functions in finite field matrices use
> ffpack, even though ffpack offers other methods like rank and determinant.
> Linbox is being called for the other methods in Sage (which I would assume is
> slower than directly calling ffpack, as is noted in the documentation for
> echelonize). I have some questions -
>
> - Would it be worthwhile to switch the defaults from linbox to ffpack for some
> of these methods as is done in echelonize?
>
> - Which pivoting strategies are being talked about in the GSoC project
> description?
>
> - Would a project that just involves making all useful fflas-ffpack routines
> available through Sage be appropriate for a 300 hour project, or would FLINT
> routines necessarily need to be included as well?
>
> As I work on this, discussing these issues with the mentors would be amazing.
> Is there an IRC / Slack / Discord channel where I could be in direct contact
> with the mentors?
>
> Thanks!
>
> Regards,
> Karan
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