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authorLudovic Courtès <ludovic.courtes@inria.fr>2021-06-18 18:07:21 +0200
committerLudovic Courtès <ludo@gnu.org>2021-06-22 17:55:05 +0200
commitc7a5c3e0bba2ac3d197b219d21527863308b75dd (patch)
treee7915f5c0bf905766d39045b7db83d55990e98ea
parent7c5d50f431198d08ebc4c83943748132396f666d (diff)
downloadguix-c7a5c3e0bba2ac3d197b219d21527863308b75dd.tar.gz
gnu: petsc: Link against OpenBLAS rather than LAPACK.
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-openblas=1".
-rw-r--r--gnu/packages/maths.scm3
1 files changed, 2 insertions, 1 deletions
diff --git a/gnu/packages/maths.scm b/gnu/packages/maths.scm
index 84540d5ffe..dc18536aa7 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,