From: Eric Bavier <bavier@cray.com>
To: 30317@debbugs.gnu.org
Subject: [bug#30317] [PATCH 1/2] gnu: Add QD.
Date: Thu, 1 Feb 2018 09:52:56 -0600 [thread overview]
Message-ID: <20180201155256.GM88785@pe06.us.cray.com> (raw)
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Hello Guix,
Here is a patch that adds the "QD" double-double/quad-double library.
--
Eric Bavier, Scientific Libraries, Cray Inc.
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From d6f9934721b818ce61e17ae60feb638ff57fbc9d Mon Sep 17 00:00:00 2001
From: Eric Bavier <bavier@cray.com>
Date: Wed, 31 Jan 2018 13:55:37 -0600
Subject: [PATCH 1/2] gnu: Add QD.
* gnu/packages/multiprecision.scm (qd): New variable.
---
gnu/packages/multiprecision.scm | 40 ++++++++++++++++++++++++++++++++++++++++
1 file changed, 40 insertions(+)
diff --git a/gnu/packages/multiprecision.scm b/gnu/packages/multiprecision.scm
index b6d2d7f4a..e137fe388 100644
--- a/gnu/packages/multiprecision.scm
+++ b/gnu/packages/multiprecision.scm
@@ -4,6 +4,7 @@
;;; Copyright © 2015 Andreas Enge <andreas@enge.fr>
;;; Copyright © 2016 Nicolas Goaziou <mail@nicolasgoaziou.fr>
;;; Copyright © 2016 Jan Nieuwenhuizen <janneke@gnu.org>
+;;; Copyright © 2018 Eric Bavier <bavier@member.fsf.org>
;;;
;;; This file is part of GNU Guix.
;;;
@@ -24,6 +25,7 @@
#:use-module (guix licenses)
#:use-module (gnu packages)
#:use-module (gnu packages m4)
+ #:use-module (gnu packages gcc)
#:use-module (guix packages)
#:use-module (guix download)
#:use-module (guix utils)
@@ -150,3 +152,41 @@ the other hand to obtain accurate results, thanks to multiple precision
arithmetic.")
(license lgpl2.1+)
(home-page "https://perso.ens-lyon.fr/nathalie.revol/software.html")))
+
+(define-public qd
+ (package
+ (name "qd")
+ (version "2.3.18")
+ (source (origin
+ (method url-fetch)
+ (uri (string-append "http://crd.lbl.gov/~dhbailey/mpdist/qd-"
+ version ".tar.gz"))
+ (sha256
+ (base32
+ "0vkihcj9fyv2cycq8515713gbs3yskhmivy8bznvx72i6ddnn2c1"))))
+ (build-system gnu-build-system)
+ (native-inputs
+ `(("gfortran" ,gfortran)))
+ (arguments
+ `(#:configure-flags `("--disable-enable_fma" ;weird :/
+ "--enable-shared"
+ ,,@(if (string-prefix? "aarch64"
+ (or (%current-target-system)
+ (%current-system)))
+ ;; XXX: The qd_test test fails numerical
+ ;; accuracy checks for 'dd_real::exp()' on
+ ;; aarch64 with GCC 5.4 at -O2. Disabling
+ ;; expensive optimizations lets it pass.
+ '("CXXFLAGS=-O3 -fno-expensive-optimizations")
+ '("CXXFLAGS=-O3")))))
+ (home-page "http://crd-legacy.lbl.gov/~dhbailey/mpdist/")
+ (synopsis "Double-double and quad-double library")
+ (description "This package supports both a double-double
+datatype (approx. 32 decimal digits) and a quad-double datatype (approx. 64
+decimal digits). The computational library is written in C++. Both C++ and
+Fortran-90 high-level language interfaces are provided to permit one to
+convert an existing C++ or Fortran-90 program to use the library with only
+minor changes to the source code. In most cases only a few type statements
+and (for Fortran-90 programs) read/write statements need to be changed. PSLQ
+and numerical quadrature programs are included.")
+ (license bsd-3)))
--
2.15.1
next reply other threads:[~2018-02-01 15:54 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-02-01 15:52 Eric Bavier [this message]
2018-02-01 21:11 ` [bug#30317] [PATCH 1/2] gnu: Add QD Leo Famulari
2018-02-02 14:40 ` bug#30317: " Eric Bavier
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