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[bug#31432] [PATCH 1/2] gnu: Add lightgbm.


From: Fis Trivial
Subject: [bug#31432] [PATCH 1/2] gnu: Add lightgbm.
Date: Tue, 12 Jun 2018 10:01:16 +0000

* gnu/packages/machine-learning.scm (lightgbm): New variable.
---
 gnu/packages/machine-learning.scm | 47 +++++++++++++++++++++++++++++++++++++++
 1 file changed, 47 insertions(+)

diff --git a/gnu/packages/machine-learning.scm 
b/gnu/packages/machine-learning.scm
index 15e4d4574..499248965 100644
--- a/gnu/packages/machine-learning.scm
+++ b/gnu/packages/machine-learning.scm
@@ -47,6 +47,7 @@
   #:use-module (gnu packages gcc)
   #:use-module (gnu packages image)
   #:use-module (gnu packages maths)
+  #:use-module (gnu packages mpi)
   #:use-module (gnu packages ocaml)
   #:use-module (gnu packages perl)
   #:use-module (gnu packages pkg-config)
@@ -786,3 +787,49 @@ main intended application of Autograd is gradient-based 
optimization.")

 (define-public python2-autograd
   (package-with-python2 python-autograd))
+
+(define-public lightgbm
+  (package
+    (name "lightgbm")
+    (version "2.0.12")
+    (source (origin
+              (method url-fetch)
+              (uri (string-append
+                    "https://github.com/Microsoft/LightGBM/archive/v";
+                    version ".tar.gz"))
+              (sha256
+               (base32
+                "132zf0yk0545mg72hyzxm102g3hpb6ixx9hnf8zd2k55gas6cjj1"))
+              (file-name (string-append name "-" version ".tar.gz"))))
+    (native-inputs
+     `(("python-pytest" ,python-pytest)
+       ("python-nose" ,python-nose)))
+    (inputs
+     `(("openmpi" ,openmpi)))
+    (propagated-inputs
+     `(("python-numpy" ,python-numpy)
+       ("python-scipy" ,python-scipy)))
+    (arguments
+     `(#:configure-flags
+       '("-DUSE_MPI=ON")
+       #:phases
+       (modify-phases %standard-phases
+         (replace 'check
+           (lambda* (#:key outputs #:allow-other-keys)
+             (with-directory-excursion ,(string-append "../LightGBM-" version)
+               (invoke "pytest" "tests/c_api_test/test_.py")))))))
+    (build-system cmake-build-system)
+    (home-page "https://github.com/Microsoft/LightGBM";)
+    (synopsis "Gradient boosting framework based on decision tree algorithms")
+    (description "LightGBM is a gradient boosting framework that uses tree
+based learning algorithms.  It is designed to be distributed and efficient with
+the following advantages:
+
address@hidden
address@hidden Faster training speed and higher efficiency
address@hidden Lower memory usage
address@hidden Better accuracy
address@hidden Parallel and GPU learning supported
address@hidden Capable of handling large-scale data
address@hidden itemize\n")
+    (license license:expat)))
--
2.14.4





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