Bug#990290: petsc: add support for 64-bit integer lapack/blas

[Giacomo Mulas]

On Fri, 17 Sep 2021, Drew Parsons wrote:

> Grazie per il tuo lavoro, Giacomo.

Excellent Italian! :D

well, as in many cases in open source, it was just selfish: i did what I
needed, it costed me nothing to make it available afterwards.

> Would you be able to provide a patch for your changes, i.e. a diff
> file?  The simplest way might be to clone the git repo
> (https://salsa.debian.org/science-team/petsc) and use `git diff`.
>
> Step by step other components of the numerical library stack are
> getting 64-bit support added (Hypre is the most recent upgrade), so a
> diff will help identify the key changes we need to make for the BLAS
> integers you need, relative to the other 64-bit that are in progress.
>
> You might want to work from petsc 3.15, which is currently in the
> debian experimental branch (I'm about to update it now)

I will give it a spin for sure.  Not right now, I have some impending
deadlines I must meet.  But I hope I will be able to carve some time for
this next week.  I'll let you know as soon as I have something.

bye
Giacomo

-- 
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Giacomo Mulas <giacomo.mulas at inaf.it>
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