bug#49096: closed ([PATCH] gnu: petsc: Link against OpenBLAS rather than LAPACK.)

[GNU bug Tracking System]

Your message dated Tue, 22 Jun 2021 17:57:06 +0200
with message-id <878s313nal.fsf_-_@gnu.org>
and subject line Re: bug#49096: [PATCH] gnu: petsc: Link against OpenBLAS 
rather than LAPACK.
has caused the debbugs.gnu.org bug report #49096,
regarding [PATCH] gnu: petsc: Link against OpenBLAS rather than LAPACK.
to be marked as done.

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49096: http://debbugs.gnu.org/cgi/bugreport.cgi?bug=49096
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> --- Begin Message ---
>
>
>
> Subject: 
>
> [PATCH] gnu: petsc: Link against OpenBLAS rather than LAPACK.
>
>
>
>
> Date: 
>
> Fri, 18 Jun 2021 18:12:04 +0200
>
>
>
>
> From: Ludovic Courtès <ludovic.courtes@inria.fr>
>
> OpenBLAS performs better than LAPACK, the reference implementation.
> This is also consistent with the choice of BLAS/LAPACK implementations
> made in most other packages.
>
> * gnu/packages/maths.scm (petsc)[inputs]: Replace LAPACK by OPENBLAS.
> [arguments]: Pass "--with-openmp=1".
> ---
>  gnu/packages/maths.scm | 3 ++-
>  1 file changed, 2 insertions(+), 1 deletion(-)
>
> Hi!
>
> Usually there’s no reason to depend on the reference (“Netlib”) BLAS/LAPACK
> implementations because they perform poorly.  This change is one way to
> bring consistency here.
>
> Thoughts?
>
> Ludo’.
>
> diff --git a/gnu/packages/maths.scm b/gnu/packages/maths.scm
> index a79d546abd..8d47f91310 100644
> --- a/gnu/packages/maths.scm
> +++ b/gnu/packages/maths.scm
> @@ -2417,7 +2417,7 @@ September 2004}")
>       `(("python" ,python-2)))
>      (inputs
>       `(("gfortran" ,gfortran)
> -       ("lapack" ,lapack)
> +       ("openblas" ,openblas)
>         ("superlu" ,superlu)
>         ;; leaving out hdf5 and fftw, as petsc expects them to be built with mpi
>         ;; leaving out opengl, as configuration seems to only be for mac
> @@ -2428,6 +2428,7 @@ September 2004}")
>         #:configure-flags
>         `("--with-mpi=0"
>           "--with-openmp=1"
> +         "--with-openblas=1"
>           "--with-superlu=1")
>         #:make-flags
>         ;; Honor (parallel-job-count) for build.  Do not use --with-make-np,
> -- 
> 2.32.0
>
>
>
>
> --- End Message ---
> --- Begin Message ---
>
>
>
> Subject: 
>
> Re: bug#49096: [PATCH] gnu: petsc: Link against OpenBLAS rather than LAPACK.
>
>
>
>
> Date: 
>
> Tue, 22 Jun 2021 17:57:06 +0200
>
>
>
>
> User-agent: 
>
> Gnus/5.13 (Gnus v5.13) Emacs/27.2 (gnu/linux)
>
>
>
>
> Efraim Flashner <efraim@flashner.co.il> skribis:
>
> > On Fri, Jun 18, 2021 at 06:12:04PM +0200, Ludovic Courtès wrote:
> >> From: Ludovic Courtès <ludovic.courtes@inria.fr>
> >> 
> >> OpenBLAS performs better than LAPACK, the reference implementation.
> >> This is also consistent with the choice of BLAS/LAPACK implementations
> >> made in most other packages.
> >> 
> >> * gnu/packages/maths.scm (petsc)[inputs]: Replace LAPACK by OPENBLAS.
> >> [arguments]: Pass "--with-openmp=1".
>
> [...]
>
> > It sounds reasonable to me.
>
> Pushed as c7a5c3e0bba2ac3d197b219d21527863308b75dd.
>
> Ludo'.
>
>
> --- End Message ---