09/12: gnu: ceres-solver: Mark as tunable.

[guix-commits]

civodul pushed a commit to branch wip-cpu-tuning
in repository guix.

commit 4f69a059275101a68b822324a829a0cd9a8f238c
Author: Ludovic Courtès <ludo@gnu.org>
AuthorDate: Fri Dec 3 23:29:04 2021 +0100

    gnu: ceres-solver: Mark as tunable.
    
    * gnu/packages/maths.scm (ceres)[properties]: New field.
---
 gnu/packages/maths.scm | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/gnu/packages/maths.scm b/gnu/packages/maths.scm
index 3bac086..256b1c4 100644
--- a/gnu/packages/maths.scm
+++ b/gnu/packages/maths.scm
@@ -2411,7 +2411,10 @@ can solve two kinds of problems:
 @item non-linear least squares problems with bounds constraints;
 @item general unconstrained optimization problems.
 @end enumerate\n")
-    (license license:bsd-3)))
+    (license license:bsd-3)
+
+    ;; Mark as tunable to take advantage of SIMD code in Eigen.
+    (properties `((tunable? . #t)))))
 
 ;; For a fully featured Octave, users are strongly recommended also to install
 ;; the following packages: less, ghostscript, gnuplot.