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gnu: Add enlightenment.
[jackhill/guix/guix.git] / gnu / packages / maths.scm
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8f8b2451 1;;; GNU Guix --- Functional package management for GNU
06ed5982 2;;; Copyright © 2013, 2014 Andreas Enge <andreas@enge.fr>
da95c817 3;;; Copyright © 2013 Nikita Karetnikov <nikita@karetnikov.org>
668c06ac 4;;; Copyright © 2014 John Darrington <jmd@gnu.org>
f5d5a346 5;;; Copyright © 2014 Eric Bavier <bavier@member.fsf.org>
df354a77 6;;; Copyright © 2014 Federico Beffa <beffa@fbengineering.ch>
182d6311 7;;; Copyright © 2014 Mathieu Lirzin <mathieu.lirzin@openmailbox.org>
865a69dd 8;;; Copyright © 2015 Ricardo Wurmus <rekado@elephly.net>
32158110 9;;; Copyright © 2015 Sou Bunnbu <iyzsong@gmail.com>
8f8b2451
AE		 10;;;
11;;; This file is part of GNU Guix.
12;;;
13;;; GNU Guix is free software; you can redistribute it and/or modify it
14;;; under the terms of the GNU General Public License as published by
15;;; the Free Software Foundation; either version 3 of the License, or (at
16;;; your option) any later version.
17;;;
18;;; GNU Guix is distributed in the hope that it will be useful, but
19;;; WITHOUT ANY WARRANTY; without even the implied warranty of
20;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
21;;; GNU General Public License for more details.
22;;;
23;;; You should have received a copy of the GNU General Public License
24;;; along with GNU Guix. If not, see <http://www.gnu.org/licenses/>.
25
26(define-module (gnu packages maths)
ec322be2 27 #:use-module (ice-9 regex)
8f8b2451 28 #:use-module (gnu packages)
b5b73a82 29 #:use-module ((guix licenses) #:prefix license:)
8f8b2451
AE		 30 #:use-module (guix packages)
31 #:use-module (guix download)
279663ef 32 #:use-module (guix svn-download)
0e2672ae 33 #:use-module (guix utils)
da95c817 34 #:use-module (guix build-system cmake)
c9dfa3c7 35 #:use-module (guix build-system gnu)
3de01d3f
EB		 36 #:use-module (gnu packages algebra)
37 #:use-module (gnu packages bison)
38 #:use-module (gnu packages cmake)
c9dfa3c7 39 #:use-module (gnu packages compression)
668c06ac 40 #:use-module (gnu packages curl)
57e544e8 41 #:use-module (gnu packages elf)
3de01d3f 42 #:use-module (gnu packages flex)
668c06ac 43 #:use-module (gnu packages fltk)
f3929800 44 #:use-module (gnu packages fontutils)
1dba6407 45 #:use-module (gnu packages gettext)
da95c817 46 #:use-module (gnu packages gcc)
73fed4f8 47 #:use-module (gnu packages gd)
668c06ac 48 #:use-module (gnu packages ghostscript)
221ed17a 49 #:use-module (gnu packages glib)
f3929800 50 #:use-module (gnu packages gtk)
668c06ac 51 #:use-module (gnu packages less)
8731e527 52 #:use-module (gnu packages lisp)
5698b8b8 53 #:use-module (gnu packages gnome)
668c06ac
JD		 54 #:use-module (gnu packages xorg)
55 #:use-module (gnu packages gl)
8731e527 56 #:use-module (gnu packages m4)
d8c7eeb9 57 #:use-module (gnu packages mpi)
b92eee75 58 #:use-module (gnu packages multiprecision)
668c06ac 59 #:use-module (gnu packages pcre)
5698b8b8 60 #:use-module (gnu packages popt)
c9dfa3c7
AE		 61 #:use-module (gnu packages perl)
62 #:use-module (gnu packages pkg-config)
da95c817 63 #:use-module (gnu packages python)
c9dfa3c7 64 #:use-module (gnu packages readline)
183e44ae 65 #:use-module (gnu packages tcsh)
df354a77 66 #:use-module (gnu packages tcl)
668c06ac 67 #:use-module (gnu packages texinfo)
73fed4f8 68 #:use-module (gnu packages texlive)
c9dfa3c7 69 #:use-module (gnu packages xml))
8f8b2451
AE		 70
71(define-public units
72 (package
73 (name "units")
983815c8 74 (version "2.11")
8f8b2451
AE		 75 (source (origin
76 (method url-fetch)
77 (uri (string-append "mirror://gnu/units/units-" version
78 ".tar.gz"))
79 (sha256 (base32
983815c8 80 "1gjs3wc212aaiq4r76hx9nl1h3fa39n0ljwl9420d6ixl3rdmdjk"))))
8f8b2451
AE		 81 (build-system gnu-build-system)
82 (synopsis "Conversion between thousands of scales")
83 (description
574e86f9
LC		 84 "GNU Units converts numeric quantities between units of measure. It
85can handle scale changes through adaptive usage of standard scale prefixes
86(micro-, kilo-, etc.). It can also handle nonlinear conversions such as
87Fahrenheit to Celsius. Its interpreter is powerful enough to be used
88effectively as a scientific calculator.")
8f8b2451
AE		 89 (license license:gpl3+)
90 (home-page "http://www.gnu.org/software/units/")))
c9dfa3c7 91
182d6311
ML		 92(define-public dionysus
93 (package
94 (name "dionysus")
95 (version "1.3.0")
96 (source (origin
97 (method url-fetch)
98 (uri (string-append "mirror://gnu/dionysus/dionysus-" version
99 ".tar.gz"))
100 (sha256
101 (base32
102 "1aqnvw6z33bzqgd1ga571pnx6vq2zrkckm1cz91grv45h4jr9vgs"))))
103 (build-system gnu-build-system)
104 (inputs `(("tcl" ,tcl))) ;for 'tclsh'
105 (synopsis "Local search for universal constants and scientific values")
106 (description
107 "GNU Dionysus is a convenient system for quickly retrieving the values of
108mathematical constants used in science and engineering. Values can be
109searched using a simple command-line tool, choosing from three databases:
110universal constants, atomic numbers, and constants related to
111semiconductors.")
112 (license license:gpl3+)
113 (home-page "http://www.gnu.org/software/dionysus/")))
114
88bd1804
AE		 115(define-public gsl
116 (package
117 (name "gsl")
487da565 118 (version "1.16")
88bd1804
AE		 119 (source
120 (origin
121 (method url-fetch)
122 (uri (string-append "mirror://gnu/gsl/gsl-"
123 version ".tar.gz"))
124 (sha256
125 (base32
487da565 126 "0lrgipi0z6559jqh82yx8n4xgnxkhzj46v96dl77hahdp58jzg3k"))))
88bd1804 127 (build-system gnu-build-system)
71e0f288 128 (arguments
487da565
AE		 129 `(#:parallel-tests? #f
130 #:phases
71e0f288
AE		 131 (alist-replace
132 'configure
133 (lambda* (#:key target system outputs #:allow-other-keys #:rest args)
134 (let ((configure (assoc-ref %standard-phases 'configure)))
135 ;; disable numerically unstable test on i686, see thread at
136 ;; http://lists.gnu.org/archive/html/bug-gsl/2011-11/msg00019.html
137 (if (string=? (or target system) "i686-linux")
138 (substitute* "ode-initval2/Makefile.in"
139 (("TESTS = \\$\\(check_PROGRAMS\\)") "TESTS =")))
140 (apply configure args)))
141 %standard-phases)))
88bd1804
AE		 142 (home-page "http://www.gnu.org/software/gsl/")
143 (synopsis "Numerical library for C and C++")
144 (description
a22dc0c4
LC		 145 "The GNU Scientific Library is a library for numerical analysis in C
146and C++. It includes a wide range of mathematical routines, with over 1000
147functions in total. Subject areas covered by the library include:
148differential equations, linear algebra, Fast Fourier Transforms and random
149numbers.")
88bd1804
AE		 150 (license license:gpl3+)))
151
b92eee75
AE		 152(define-public glpk
153 (package
154 (name "glpk")
66fdf545 155 (version "4.55")
b92eee75
AE		 156 (source
157 (origin
158 (method url-fetch)
159 (uri (string-append "mirror://gnu/glpk/glpk-"
160 version ".tar.gz"))
161 (sha256
162 (base32
66fdf545 163 "1rqx5fzj1mhkifilip5mkxybpj2wkniq5qcn8h1w2vkr2rzhs29p"))))
b92eee75
AE		 164 (build-system gnu-build-system)
165 (inputs
166 `(("gmp" ,gmp)))
167 (arguments
168 `(#:configure-flags '("--with-gmp")))
169 (home-page "http://www.gnu.org/software/glpk/")
79c311b8 170 (synopsis "GNU Linear Programming Kit, supporting the MathProg language")
b92eee75
AE		 171 (description
172 "GLPK is a C library for solving large-scale linear programming (LP),
173mixed integer programming (MIP), and other related problems. It supports the
174GNU MathProg modeling language, a subset of the AMPL language, and features a
175translator for the language. In addition to the C library, a stand-alone
176LP/MIP solver is included in the package.")
177 (license license:gpl3+)))
178
c9dfa3c7
AE		 179(define-public pspp
180 (package
181 (name "pspp")
3dcd7810 182 (version "0.8.4")
c9dfa3c7
AE		 183 (source
184 (origin
185 (method url-fetch)
186 (uri (string-append "mirror://gnu/pspp/pspp-"
187 version ".tar.gz"))
188 (sha256
189 (base32
3dcd7810 190 "0b65q45x05ps95pph6glbg7ymdr638nfb0rk9x5x9qm5k073pk5z"))))
c9dfa3c7
AE		 191 (build-system gnu-build-system)
192 (inputs
f3929800
AE		 193 `(("cairo" ,cairo)
194 ("fontconfig" ,fontconfig)
1dba6407 195 ("gettext" ,gnu-gettext)
c9dfa3c7
AE		 196 ("gsl" ,gsl)
197 ("libxml2" ,libxml2)
f3929800 198 ("pango" ,pango)
c9dfa3c7 199 ("readline" ,readline)
e6a5ce8e
JD		 200 ("gtk" ,gtk+-2)
201 ("gtksourceview" ,gtksourceview)
c9dfa3c7
AE		 202 ("zlib" ,zlib)))
203 (native-inputs
221ed17a
EB		 204 `(("glib" ,glib "bin") ;for glib-genmarshal
205 ("perl" ,perl)
c9dfa3c7 206 ("pkg-config" ,pkg-config)))
c9dfa3c7
AE		 207 (home-page "http://www.gnu.org/software/pspp/")
208 (synopsis "Statistical analysis")
209 (description
79c311b8 210 "GNU PSPP is a statistical analysis program. It can perform
c5779c93
LC		 211descriptive statistics, T-tests, linear regression and non-parametric tests.
212It features both a graphical interface as well as command-line input. PSPP
213is designed to interoperate with Gnumeric, LibreOffice and OpenOffice. Data
214can be imported from spreadsheets, text files and database sources and it can
215be output in text, PostScript, PDF or HTML.")
c9dfa3c7 216 (license license:gpl3+)))
da95c817 217
865a69dd
RW		 218(define-public arpack-ng
219 (package
220 (name "arpack-ng")
221 (version "3.2.0")
222 (source
223 (origin
224 (method url-fetch)
225 (uri (string-append "https://github.com/opencollab/arpack-ng/archive/"
226 version ".tar.gz"))
f586c877 227 (file-name (string-append name "-" version ".tar.gz"))
865a69dd
RW		 228 (sha256
229 (base32
230 "1fwch6vipms1ispzg2djvbzv5wag36f1dmmr3xs3mbp6imfyhvff"))))
231 (build-system gnu-build-system)
232 (home-page "https://github.com/opencollab/arpack-ng")
233 (inputs
234 `(("lapack" ,lapack)
235 ("fortran" ,gfortran-4.8)))
236 (synopsis "Fortran subroutines for solving eigenvalue problems")
237 (description
238 "ARPACK-NG is a collection of Fortran77 subroutines designed to solve
239large scale eigenvalue problems.")
240 (license (license:bsd-style "file://COPYING"
241 "See COPYING in the distribution."))))
242
da95c817
NK		 243(define-public lapack
244 (package
245 (name "lapack")
566146ab 246 (version "3.5.0")
da95c817
NK		 247 (source
248 (origin
249 (method url-fetch)
250 (uri (string-append "http://www.netlib.org/lapack/lapack-"
251 version ".tgz"))
252 (sha256
253 (base32
566146ab 254 "0lk3f97i9imqascnlf6wr5mjpyxqcdj73pgj97dj2mgvyg9z1n4s"))))
da95c817
NK		 255 (build-system cmake-build-system)
256 (home-page "http://www.netlib.org/lapack/")
57e544e8 257 (native-inputs `(("patchelf" ,patchelf))) ;for augment-rpath
da95c817
NK		 258 (inputs `(("fortran" ,gfortran-4.8)
259 ("python" ,python-2)))
260 (arguments
06ed5982 261 `(#:configure-flags '("-DBUILD_SHARED_LIBS:BOOL=YES")
da95c817 262 #:phases (alist-cons-before
6a995754
LC		 263 'check 'patch-python
264 (lambda* (#:key inputs #:allow-other-keys)
265 (let ((python (assoc-ref inputs "python")))
266 (substitute* "lapack_testing.py"
267 (("/usr/bin/env python") python))))
06ed5982 268 %standard-phases)))
da95c817
NK		 269 (synopsis "Library for numerical linear algebra")
270 (description
271 "LAPACK is a Fortran 90 library for solving the most commonly occurring
272problems in numerical linear algebra.")
273 (license (license:bsd-style "file://LICENSE"
274 "See LICENSE in the distribution."))))
73fed4f8
JD		 275
276(define-public gnuplot
277 (package
278 (name "gnuplot")
279 (version "4.6.3")
280 (source
281 (origin
282 (method url-fetch)
283 (uri (string-append "mirror://sourceforge/gnuplot/gnuplot/"
284 version "/gnuplot-" version ".tar.gz"))
285 (sha256
286 (base32
287 "1xd7gqdhlk7k1p9yyqf9vkk811nadc7m4si0q3nb6cpv4pxglpyz"))))
288 (build-system gnu-build-system)
289 (inputs `(("readline" ,readline)
290 ("cairo" ,cairo)
291 ("pango" ,pango)
292 ("gd" ,gd)))
293 (native-inputs `(("texlive" ,texlive)
294 ("pkg-config" ,pkg-config)))
295 (home-page "http://www.gnuplot.info")
296 (synopsis "Command-line driven graphing utility")
297 (description "Gnuplot is a portable command-line driven graphing
35b9e423 298utility. It was originally created to allow scientists and students to
73fed4f8 299visualize mathematical functions and data interactively, but has grown to
35b9e423 300support many non-interactive uses such as web scripting. It is also used as a
73fed4f8
JD		 301plotting engine by third-party applications like Octave.")
302 ;; X11 Style with the additional restriction that derived works may only be
303 ;; distributed as patches to the original.
304 (license (license:fsf-free
668c06ac
JD		 305 "http://gnuplot.cvs.sourceforge.net/gnuplot/gnuplot/Copyright"))))
306
7ee3f1a2
JD		 307(define-public hdf5
308 (package
309 (name "hdf5")
310 (version "1.8.12")
311 (source
312 (origin
313 (method url-fetch)
93c3de92
AE		 314 (uri (string-append "http://www.hdfgroup.org/ftp/HDF5/releases/hdf5-"
315 version "/src/hdf5-"
7ee3f1a2
JD		 316 version ".tar.bz2"))
317 (sha256
318 (base32 "0f9n0v3p3lwc7564791a39c6cn1d3dbrn7d1j3ikqsi27a8hy23d"))))
319 (build-system gnu-build-system)
320 (arguments
321 `(#:phases
d4bf49b1
EB		 322 (alist-cons-before
323 'configure 'patch-configure
324 (lambda _
325 (substitute* "configure"
326 (("/bin/mv") "mv")))
7ee3f1a2
JD		 327 %standard-phases)))
328 (outputs '("out" "bin" "lib" "include"))
329 (home-page "http://www.hdfgroup.org")
516e93f8 330 (synopsis "Management suite for extremely large and complex data")
7ee3f1a2
JD		 331 (description "HDF5 is a suite that makes possible the management of
332extremely large and complex data collections.")
d4bf49b1
EB		 333 (license (license:x11-style
334 "http://www.hdfgroup.org/ftp/HDF5/current/src/unpacked/COPYING"))))
7ee3f1a2
JD		 335
336
668c06ac
JD		 337;; For a fully featured Octave, users are strongly recommended also to install
338;; the following packages: texinfo, less, ghostscript, gnuplot.
339(define-public octave
340 (package
341 (name "octave")
32158110 342 (version "3.8.2")
668c06ac
JD		 343 (source
344 (origin
345 (method url-fetch)
346 (uri (string-append "mirror://gnu/octave/octave-"
347 version ".tar.gz"))
348 (sha256
349 (base32
32158110 350 "05slz8yx8k91fqlnfr1f0vni95iq9qmchz41c7nf4isn3b2fjn7j"))))
668c06ac
JD		 351 (build-system gnu-build-system)
352 (inputs
353 `(("lapack" ,lapack)
354 ("readline" ,readline)
355 ("glpk" ,glpk)
356 ("curl" ,curl)
357 ("pcre" ,pcre)
358 ("fltk" ,fltk)
359 ("fontconfig" ,fontconfig)
360 ("freetype" ,freetype)
7ee3f1a2
JD		 361 ("hdf5-lib" ,hdf5 "lib")
362 ("hdf5-include" ,hdf5 "include")
668c06ac
JD		 363 ("libxft" ,libxft)
364 ("mesa" ,mesa)
365 ("zlib" ,zlib)))
366 (native-inputs
367 `(("gfortran" ,gfortran-4.8)
368 ("pkg-config" ,pkg-config)
369 ("perl" ,perl)
370 ;; The following inputs are not actually used in the build process. However, the
371 ;; ./configure gratuitously tests for their existence and assumes that programs not
372 ;; present at build time are also not, and can never be, available at run time!
373 ;; If these inputs are therefore not present, support for them will be built out.
374 ;; However, Octave will still run without them, albeit without the features they
375 ;; provide.
376 ("less" ,less)
377 ("texinfo" ,texinfo)
378 ("ghostscript" ,ghostscript)
379 ("gnuplot" ,gnuplot)))
380 (arguments
381 `(#:configure-flags (list (string-append "--with-shell="
382 (assoc-ref %build-inputs "bash")
383 "/bin/sh"))))
384 (home-page "http://www.gnu.org/software/octave/")
385 (synopsis "High-level language for numerical computation")
386 (description "GNU Octave is a high-level interpreted language that is specialized
387for numerical computations. It can be used for both linear and non-linear
388applications and it provides great support for visualizing results. Work may
389be performed both at the interactive command-line as well as via script
390files.")
391 (license license:gpl3+)))
3de01d3f
EB		 392
393(define-public gmsh
394 (package
395 (name "gmsh")
396 (version "2.8.4")
397 (source
398 (origin
399 (method url-fetch)
400 (uri (string-append "http://www.geuz.org/gmsh/src/gmsh-"
401 version "-source.tgz"))
402 (sha256
403 (base32 "0jv2yvk28w86rx5mvjkb0w12ff2jxih7axnpvznpd295lg5jg7hr"))
404 (modules '((guix build utils)))
405 (snippet
406 ;; Remove non-free METIS code
407 '(delete-file-recursively "contrib/Metis"))))
408 (build-system cmake-build-system)
409 (native-inputs `(("patchelf" ,patchelf))) ;for augment-rpath
410 (propagated-inputs
411 `(("fltk" ,fltk)
412 ("gfortran" ,gfortran-4.8)
413 ("gmp" ,gmp)
414 ("hdf5-lib" ,hdf5 "lib")
415 ("hdf5-include" ,hdf5 "include")
416 ("lapack" ,lapack)
417 ("mesa" ,mesa)
85f41902 418 ("glu" ,glu)
3de01d3f
EB		 419 ("libx11" ,libx11)
420 ("libxext" ,libxext)))
421 (arguments
422 `(#:configure-flags `("-DENABLE_METIS:BOOL=OFF"
423 "-DENABLE_BUILD_SHARED:BOOL=ON"
424 "-DENABLE_BUILD_DYNAMIC:BOOL=ON")))
425 (home-page "http://www.geuz.org/gmsh/")
426 (synopsis "3D finite element grid generator")
edf684ef
EB		 427 (description "Gmsh is a 3D finite element grid generator with a built-in
428CAD engine and post-processor. Its design goal is to provide a fast, light
429and user-friendly meshing tool with parametric input and advanced
430visualization capabilities. Gmsh is built around four modules: geometry,
431mesh, solver and post-processing. The specification of any input to these
432modules is done either interactively using the graphical user interface or in
433ASCII text files using Gmsh's own scripting language.")
3de01d3f 434 (license license:gpl2+)))
b9100e2f
EB		 435
436(define-public petsc
437 (package
438 (name "petsc")
439 (version "3.4.4")
440 (source
441 (origin
442 (method url-fetch)
443 ;; The *-lite-* tarball does not contain the *large* documentation
444 (uri (string-append "http://ftp.mcs.anl.gov/pub/petsc/release-snapshots/"
445 "petsc-lite-" version ".tar.gz"))
446 (sha256
447 (base32 "0v5dg6dhdjpi5ianvd4mm6hsvxzv1bsxwnh9f9myag0a0d9xk9iv"))
448 (patches
449 (list (search-patch "petsc-fix-threadcomm.patch")))))
450 (build-system gnu-build-system)
451 (native-inputs
452 `(("python" ,python-2)
453 ("perl" ,perl)))
454 (inputs
455 `(("gfortran" ,gfortran-4.8)
456 ("lapack" ,lapack)
f258212d 457 ("superlu" ,superlu)
b9100e2f
EB		 458 ;; leaving out hdf5 and fftw, as petsc expects them to be built with mpi
459 ;; leaving out opengl, as configuration seems to only be for mac
460 ))
461 (arguments
462 `(#:test-target "test"
463 #:parallel-build? #f
464 #:configure-flags
465 `("--with-mpi=0"
f258212d
EB		 466 "--with-openmp=1"
467 "--with-superlu=1"
468 ,(string-append "--with-superlu-include="
469 (assoc-ref %build-inputs "superlu") "/include")
470 ,(string-append "--with-superlu-lib="
471 (assoc-ref %build-inputs "superlu") "/lib/libsuperlu.a"))
b9100e2f
EB		 472 #:phases
473 (alist-replace
474 'configure
475 ;; PETSc's configure script is actually a python script, so we can't
476 ;; run it with bash.
477 (lambda* (#:key outputs (configure-flags '())
478 #:allow-other-keys)
479 (let* ((prefix (assoc-ref outputs "out"))
480 (flags `(,(string-append "--prefix=" prefix)
481 ,@configure-flags)))
482 (format #t "build directory: ~s~%" (getcwd))
483 (format #t "configure flags: ~s~%" flags)
484 (zero? (apply system* "./configure" flags))))
485 (alist-cons-after
10b11968
EB		 486 'configure 'clean-local-references
487 ;; Try to keep build directory names from leaking into compiled code
b9100e2f 488 (lambda* (#:key inputs outputs #:allow-other-keys)
10b11968
EB		 489 (let ((out (assoc-ref outputs "out")))
490 (substitute* (find-files "." "^petsc(conf|machineinfo).h$")
491 (((getcwd)) out))))
492 (alist-cons-after
493 'install 'clean-install
494 ;; Try to keep installed files from leaking build directory names.
495 (lambda* (#:key inputs outputs #:allow-other-keys)
496 (let ((out (assoc-ref outputs "out"))
497 (fortran (assoc-ref inputs "gfortran")))
498 (substitute* (map (lambda (file)
499 (string-append out "/" file))
500 '("conf/petscvariables"
501 "conf/PETScConfig.cmake"))
502 (((getcwd)) out))
503 ;; Make compiler references point to the store
504 (substitute* (string-append out "/conf/petscvariables")
505 (("= g(cc|\\+\\+|fortran)" _ suffix)
506 (string-append "= " fortran "/bin/g" suffix)))
507 ;; PETSc installs some build logs, which aren't necessary.
508 (for-each (lambda (file)
509 (let ((f (string-append out "/" file)))
510 (when (file-exists? f)
511 (delete-file f))))
512 '("conf/configure.log"
513 "conf/make.log"
514 "conf/test.log"
515 "conf/error.log"
516 "conf/RDict.db"
517 ;; Once installed, should uninstall with Guix
518 "conf/uninstall.py"))))
519 %standard-phases)))))
b9100e2f 520 (home-page "http://www.mcs.anl.gov/petsc")
16ecf3ff 521 (synopsis "Library to solve PDEs")
b9100e2f
EB		 522 (description "PETSc, pronounced PET-see (the S is silent), is a suite of
523data structures and routines for the scalable (parallel) solution of
524scientific applications modeled by partial differential equations.")
525 (license (license:bsd-style
526 "http://www.mcs.anl.gov/petsc/documentation/copyright.html"))))
527
528(define-public petsc-complex
529 (package (inherit petsc)
9e771e3b 530 (location (source-properties->location (current-source-location)))
b9100e2f
EB		 531 (name "petsc-complex")
532 (arguments
533 (substitute-keyword-arguments (package-arguments petsc)
534 ((#:configure-flags cf)
535 `(cons "--with-scalar-type=complex" ,cf))))
16ecf3ff 536 (synopsis "Library to solve PDEs (with complex scalars)")))
183e44ae 537
d8c7eeb9
EB		 538(define-public petsc-openmpi
539 (package (inherit petsc)
540 (name "petsc-openmpi")
541 (inputs
542 `(("openmpi" ,openmpi)
543 ,@(package-inputs petsc)))
544 (arguments
545 (substitute-keyword-arguments (package-arguments petsc)
546 ((#:configure-flags cf)
547 ``("--with-mpiexec=mpirun"
548 ,(string-append "--with-mpi-dir="
549 (assoc-ref %build-inputs "openmpi"))
550 ,@(delete "--with-mpi=0" ,cf)))))
16ecf3ff 551 (synopsis "Library to solve PDEs (with MPI support)")))
d8c7eeb9
EB		 552
553(define-public petsc-complex-openmpi
554 (package (inherit petsc-complex)
555 (name "petsc-complex-openmpi")
556 (inputs
557 `(("openmpi" ,openmpi)
558 ,@(package-inputs petsc-complex)))
559 (arguments
560 (substitute-keyword-arguments (package-arguments petsc-complex)
561 ((#:configure-flags cf)
562 ``("--with-mpiexec=mpirun"
563 ,(string-append "--with-mpi-dir="
564 (assoc-ref %build-inputs "openmpi"))
565 ,@(delete "--with-mpi=0" ,cf)))))
16ecf3ff 566 (synopsis "Library to solve PDEs (with complex scalars and MPI support)")))
d8c7eeb9 567
183e44ae
EB		 568(define-public superlu
569 (package
570 (name "superlu")
571 (version "4.3")
572 (source
573 (origin
574 (method url-fetch)
575 (uri (string-append "http://crd-legacy.lbl.gov/~xiaoye/SuperLU/"
576 "superlu_" version ".tar.gz"))
577 (sha256
578 (base32 "10b785s9s4x0m9q7ihap09275pq4km3k2hk76jiwdfdr5qr2168n"))))
579 (build-system gnu-build-system)
580 (native-inputs
581 `(("tcsh" ,tcsh)))
582 (inputs
583 `(("lapack" ,lapack)
584 ("gfortran" ,gfortran-4.8)))
585 (arguments
586 `(#:parallel-build? #f
587 #:tests? #f ;tests are run as part of `make all`
588 #:phases
589 (alist-replace
590 'configure
591 (lambda* (#:key inputs outputs #:allow-other-keys)
592 (call-with-output-file "make.inc"
593 (lambda (port)
594 (format port "
595PLAT =
596SuperLUroot = ~a
597SUPERLULIB = ~a/lib/libsuperlu.a
598TMGLIB = libtmglib.a
599BLASDEF = -DUSE_VENDOR_BLAS
600BLASLIB = -L~a/lib -lblas
601LIBS = $(SUPERLULIB) $(BLASLIB)
602ARCH = ar
603ARCHFLAGS = cr
604RANLIB = ranlib
605CC = gcc
606PIC = -fPIC
607CFLAGS = -O3 -DPRNTlevel=0 $(PIC)
608NOOPTS = -O0 $(PIC)
609FORTRAN = gfortran
610FFLAGS = -O2 $(PIC)
611LOADER = $(CC)
612CDEFS = -DAdd_"
613 (getcwd)
614 (assoc-ref outputs "out")
615 (assoc-ref inputs "lapack")))))
616 (alist-cons-before
617 'build 'create-install-directories
618 (lambda* (#:key outputs #:allow-other-keys)
619 (for-each
620 (lambda (dir)
621 (mkdir-p (string-append (assoc-ref outputs "out")
622 "/" dir)))
623 '("lib" "include")))
624 (alist-replace
625 'install
626 (lambda* (#:key outputs #:allow-other-keys)
627 ;; Library is placed in lib during the build phase. Copy over
628 ;; headers to include.
629 (let* ((out (assoc-ref outputs "out"))
630 (incdir (string-append out "/include")))
631 (for-each (lambda (file)
632 (let ((base (basename file)))
633 (format #t "installing `~a' to `~a'~%"
634 base incdir)
635 (copy-file file
636 (string-append incdir "/" base))))
637 (find-files "SRC" ".*\\.h$"))))
638 %standard-phases)))))
639 (home-page "http://crd-legacy.lbl.gov/~xiaoye/SuperLU/")
640 (synopsis "Supernodal direct solver for sparse linear systems")
641 (description
642 "SuperLU is a general purpose library for the direct solution of large,
643sparse, nonsymmetric systems of linear equations on high performance machines.
644The library is written in C and is callable from either C or Fortran. The
645library routines perform an LU decomposition with partial pivoting and
646triangular system solves through forward and back substitution. The library
647also provides threshold-based ILU factorization preconditioners.")
648 (license license:bsd-3)))
f8ed036a 649
a54aefea
EB		 650(define-public superlu-dist
651 (package
652 (name "superlu-dist")
653 (version "3.3")
654 (source
655 (origin
656 (method url-fetch)
657 (uri (string-append "http://crd-legacy.lbl.gov/~xiaoye/SuperLU/"
658 "superlu_dist_" version ".tar.gz"))
659 (sha256
660 (base32 "1hnak09yxxp026blq8zhrl7685yip16svwngh1wysqxf8z48vzfj"))
661 (patches (list (search-patch "superlu-dist-scotchmetis.patch")))))
662 (build-system gnu-build-system)
663 (native-inputs
664 `(("tcsh" ,tcsh)))
665 (inputs
666 `(("gfortran" ,gfortran-4.8)))
667 (propagated-inputs
668 `(("openmpi" ,openmpi) ;headers include MPI heades
669 ("lapack" ,lapack) ;required to link with output library
670 ("pt-scotch" ,pt-scotch))) ;same
671 (arguments
672 `(#:parallel-build? #f ;race conditions using ar
673 #:phases
674 (alist-replace
675 'configure
676 (lambda* (#:key inputs outputs #:allow-other-keys)
677 (call-with-output-file "make.inc"
678 (lambda (port)
679 (format port "
680PLAT =
681DSuperLUroot = ~a
682DSUPERLULIB = ~a/lib/libsuperlu_dist.a
683BLASDEF = -DUSE_VENDOR_BLAS
684BLASLIB = -L~a/lib -lblas
685PARMETISLIB = -L~a/lib \
686 -lptscotchparmetis -lptscotch -lptscotcherr -lptscotcherrexit \
687 -lscotch -lscotcherr -lscotcherrexit
688METISLIB = -L~:*~a/lib \
689 -lscotchmetis -lscotch -lscotcherr -lscotcherrexit
690LIBS = $(DSUPERLULIB) $(PARMETISLIB) $(METISLIB) $(BLASLIB)
691ARCH = ar
692ARCHFLAGS = cr
693RANLIB = ranlib
694CC = mpicc
695PIC = -fPIC
696CFLAGS = -O3 -g -DPRNTlevel=0 $(PIC)
697NOOPTS = -O0 -g $(PIC)
698FORTRAN = mpifort
699FFLAGS = -O2 -g $(PIC)
700LOADER = $(CC)
701CDEFS = -DAdd_"
702 (getcwd)
703 (assoc-ref outputs "out")
704 (assoc-ref inputs "lapack")
705 (assoc-ref inputs "pt-scotch")))))
706 (alist-cons-after
707 'unpack 'remove-broken-symlinks
708 (lambda _
709 (for-each delete-file
710 (find-files "MAKE_INC" "\\.#make\\..*")))
711 (alist-cons-before
712 'build 'create-install-directories
713 (lambda* (#:key outputs #:allow-other-keys)
714 (for-each
715 (lambda (dir)
716 (mkdir-p (string-append (assoc-ref outputs "out")
717 "/" dir)))
718 '("lib" "include")))
719 (alist-replace
720 'check
721 (lambda _
722 (with-directory-excursion "EXAMPLE"
723 (and
724 (zero? (system* "mpirun" "-n" "2"
725 "./pddrive" "-r" "1" "-c" "2" "g20.rua"))
726 (zero? (system* "mpirun" "-n" "2"
727 "./pzdrive" "-r" "1" "-c" "2" "cg20.cua")))))
728 (alist-replace
729 'install
730 (lambda* (#:key outputs #:allow-other-keys)
731 ;; Library is placed in lib during the build phase. Copy over
732 ;; headers to include.
733 (let* ((out (assoc-ref outputs "out"))
734 (incdir (string-append out "/include")))
735 (for-each (lambda (file)
736 (let ((base (basename file)))
737 (format #t "installing `~a' to `~a'~%"
738 base incdir)
739 (copy-file file
740 (string-append incdir "/" base))))
741 (find-files "SRC" ".*\\.h$"))))
742 %standard-phases)))))))
743 (home-page (package-home-page superlu))
744 (synopsis "Parallel supernodal direct solver")
745 (description
746 "SuperLU_DIST is a parallel extension to the serial SuperLU library.
747It is targeted for distributed memory parallel machines. SuperLU_DIST is
748implemented in ANSI C, and MPI for communications.")
749 (license license:bsd-3)))
750
f8ed036a
EB		 751(define-public scotch
752 (package
753 (name "scotch")
754 (version "6.0.0")
755 (source
756 (origin
757 (method url-fetch)
758 (uri (string-append "https://gforge.inria.fr/frs/download.php/31831/"
759 "scotch_" version ".tar.gz"))
760 (sha256
761 (base32 "0yfqf9lk7chb3h42777x42x4adx0v3n0b41q0cdqrdmscp4iczp5"))
762 (patches (list (search-patch "scotch-test-threading.patch")))))
763 (build-system gnu-build-system)
764 (inputs
765 `(("zlib" ,zlib)
766 ("flex" ,flex)
767 ("bison" ,bison)))
768 (arguments
769 `(#:phases
770 (alist-cons-after
771 'unpack 'chdir-to-src
772 (lambda _ (chdir "src"))
773 (alist-replace
774 'configure
775 (lambda _
776 (call-with-output-file "Makefile.inc"
777 (lambda (port)
778 (format port "
779EXE =
780LIB = .a
781OBJ = .o
782MAKE = make
783AR = ar
784ARFLAGS = -ruv
785CCS = gcc
786CCP = mpicc
787CCD = gcc
788CPPFLAGS =~{ -D~a~}
789CFLAGS = -O2 -g $(CPPFLAGS)
790LDFLAGS = -lz -lm -lrt -lpthread
791CP = cp
792LEX = flex -Pscotchyy -olex.yy.c
793LN = ln
794MKDIR = mkdir
795MV = mv
796RANLIB = ranlib
797YACC = bison -pscotchyy -y -b y
798"
799 '("COMMON_FILE_COMPRESS_GZ"
800 "COMMON_PTHREAD"
801 "COMMON_RANDOM_FIXED_SEED"
802 ;; TODO: Define once our MPI supports
803 ;; MPI_THREAD_MULTIPLE
804 ;; "SCOTCH_PTHREAD"
805 ;; "SCOTCH_PTHREAD_NUMBER=2"
806 "restrict=__restrict")))))
807 (alist-replace
808 'install
809 (lambda* (#:key outputs #:allow-other-keys)
810 (let ((out (assoc-ref outputs "out")))
811 (mkdir out)
812 (zero? (system* "make"
813 (string-append "prefix=" out)
814 "install"))))
815 %standard-phases)))))
816 (home-page "http://www.labri.fr/perso/pelegrin/scotch/")
817 (synopsis "Programs and libraries for graph algorithms")
818 (description "SCOTCH is a set of programs and libraries which implement
819the static mapping and sparse matrix reordering algorithms developed within
820the SCOTCH project. Its purpose is to apply graph theory, with a divide and
821conquer approach, to scientific computing problems such as graph and mesh
822partitioning, static mapping, and sparse matrix ordering, in application
823domains ranging from structural mechanics to operating systems or
824bio-chemistry.")
825 ;; See LICENSE_en.txt
826 (license license:cecill-c)))
6acb4adb
EB		 827
828(define-public pt-scotch
829 (package (inherit scotch)
830 (name "pt-scotch")
831 (propagated-inputs
832 `(("openmpi" ,openmpi))) ;Headers include MPI headers
833 (arguments
834 (substitute-keyword-arguments (package-arguments scotch)
835 ((#:phases scotch-phases)
836 `(alist-replace
837 'build
838 ;; TODO: Would like to add parallelism here
839 (lambda _
840 (and
841 (zero? (system* "make" "ptscotch"))
842 ;; Install the serial metis compatibility library
843 (zero? (system* "make" "-C" "libscotchmetis" "install"))))
844 (alist-replace
845 'check
846 (lambda _ (zero? (system* "make" "ptcheck")))
847 (alist-replace
848 'install
849 (lambda* (#:key outputs #:allow-other-keys)
850 (let ((out (assoc-ref outputs "out")))
851 (mkdir out)
852 (zero? (system* "make"
853 (string-append "prefix=" out)
854 "install"))))
855 ,scotch-phases))))))
856 (synopsis "Programs and libraries for graph algorithms (with MPI)")))
5698b8b8
JD		 857
858(define-public gsegrafix
859 (package
860 (name "gsegrafix")
861 (version "1.0.6")
862 (source
863 (origin
864 (method url-fetch)
865 (uri (string-append "mirror://gnu/" name "/" name "-"
866 version ".tar.gz"))
867 (sha256
868 (base32
869 "1b13hvx063zv970y750bx41wpx6hwd5ngjhbdrna8w8yy5kmxcda"))))
870 (build-system gnu-build-system)
871 (arguments
872 `(#:configure-flags '("LDFLAGS=-lm")))
873 (inputs
874 `(("libgnomecanvas" ,libgnomecanvas)
875 ("libbonoboui" ,libbonoboui)
876 ("libgnomeui" ,libgnomeui)
877 ("libgnomeprintui" ,libgnomeprintui)
878 ("popt" ,popt)))
879 (native-inputs
880 `(("pkg-config" ,pkg-config)))
881 (home-page "http://www.gnu.org/software/gsegrafix/")
882 (synopsis "GNOME application to create scientific and engineering plots")
883 (description "GSEGrafix is an application which produces high-quality graphical
884plots for science and engineering. Plots are specified via simple ASCII
885parameter files and data files and are presented in an anti-aliased GNOME
886canvas. The program supports rectangular two-dimensional plots, histograms,
887polar-axis plots and three-dimensional plots. Plots can be printed or saved
888to BMP, JPEG or PNG image formats.")
889 (license license:gpl3+)))
8731e527
JD		 890
891(define-public maxima
892 (package
893 (name "maxima")
df354a77 894 (version "5.34.1")
8731e527
JD		 895 (source
896 (origin
897 (method url-fetch)
898 (uri (string-append "mirror://sourceforge/maxima/Maxima-source/"
899 version "-source/" name "-" version ".tar.gz"))
900 (sha256
901 (base32
df354a77 902 "1dw9vfzldpj7lv303xbw0wpyn6ra6i2yzwlrjbcx7j0jm5n43ji0"))))
8731e527 903 (build-system gnu-build-system)
df354a77
FB		 904 (inputs
905 `(("gcl" ,gcl)
906 ("gnuplot" ,gnuplot) ;for plots
f36afe4d 907 ("tk" ,tk))) ;Tcl/Tk is used by 'xmaxima'
df354a77
FB		 908 (native-inputs
909 `(("texinfo" ,texinfo)
910 ("perl" ,perl)))
8731e527 911 (arguments
df354a77
FB		 912 `(#:configure-flags
913 (list "--enable-gcl"
914 (string-append "--with-posix-shell="
915 (assoc-ref %build-inputs "bash")
916 "/bin/sh")
917 (string-append "--with-wish="
918 (assoc-ref %build-inputs "tk")
919 "/bin/wish"
920 (let ((v ,(package-version tk)))
921 (string-take v (string-index-right v #\.)))))
df354a77
FB		 922 ;; By default Maxima attempts to write temporary files to
923 ;; '/tmp/nix-build-maxima-5.34.1', which doesn't exist. Work around
924 ;; that.
925 #:make-flags (list "TMPDIR=/tmp")
df354a77 926 #:phases (alist-cons-before
8731e527 927 'check 'pre-check
df354a77 928 (lambda _
8731e527 929 (chmod "src/maxima" #o555))
f36afe4d
FB		 930 ;; Make sure the doc and emacs files are found in the
931 ;; standard location. Also configure maxima to find gnuplot
932 ;; without having it on the PATH.
933 (alist-cons-after
934 'install 'post-install
935 (lambda* (#:key outputs inputs #:allow-other-keys)
936 (let* ((gnuplot (assoc-ref inputs "gnuplot"))
937 (out (assoc-ref outputs "out"))
938 (datadir (string-append out "/share/maxima/" ,version)))
939 (with-directory-excursion out
940 (mkdir-p "share/emacs")
941 (mkdir-p "share/doc")
942 (symlink
943 (string-append datadir "/emacs/")
944 (string-append out "/share/emacs/site-lisp"))
945 (symlink
946 (string-append datadir "/doc/")
947 (string-append out "/share/doc/maxima"))
948 (with-atomic-file-replacement
949 (string-append datadir "/share/maxima-init.lisp")
950 (lambda (in out)
951 (format out "~a ~s~a~%"
952 "(setf $gnuplot_command "
953 (string-append gnuplot "/bin/gnuplot") ")")
954 (dump-port in out))))))
955 %standard-phases))))
8731e527
JD		 956 (home-page "http://maxima.sourceforge.net")
957 (synopsis "Numeric and symbolic expression manipulation")
958 (description "Maxima is a system for the manipulation of symbolic and
959numerical expressions. It yields high precision numeric results by using
960exact fractions, arbitrary precision integers, and variable precision floating
961point numbers")
962 ;; Some files are lgpl2.1+. Some are gpl2+. Some explicitly state gpl1+.
963 ;; Others simply say "GNU General Public License" without stating a
964 ;; version (which implicitly means gpl1+).
965 ;; At least one file (src/maxima.asd) says "version 2."
966 ;; GPLv2 only is therefore the smallest subset.
f36afe4d 967 (license license:gpl2)))
ec322be2 968
279663ef
RW		 969(define-public muparser
970 (package
971 (name "muparser")
972 (version "2.2.5")
973 (source
974 (origin
975 (method svn-fetch)
976 (uri (svn-reference
977 (url "http://muparser.googlecode.com/svn/trunk/")
978 (revision 34)))
979 (sha256
980 (base32
981 "1d6bdbhx9zj3srwj3m7c9hvr18gnx1fx43h6d25my7q85gicpcwn"))))
982 (build-system gnu-build-system)
983 (arguments
984 `(#:configure-flags '("--enable-samples=no")
985 #:tests? #f)) ;no "check" target
986 (home-page "http://muparser.beltoforion.de/")
987 (synopsis "Fast parser library for mathematical expressions")
988 (description
989 "muParser is an extensible high performance math parser library. It is
990based on transforming an expression into a bytecode and precalculating
991constant parts of it.")
992 (license license:expat)))
993
ec322be2
FB		 994(define-public atlas
995 (package
996 (name "atlas")
997 (version "3.10.2")
998 (source (origin
999 (method url-fetch)
1000 (uri (string-append "mirror://sourceforge/math-atlas/atlas"
1001 version ".tar.bz2"))
1002 (sha256
1003 (base32
1004 "0bqh4bdnjdyww4mcpg6kn0x7338mfqbdgysn97dzrwwb26di7ars"))))
1005 (build-system gnu-build-system)
1006 (home-page "http://math-atlas.sourceforge.net/")
1007 (inputs `(("gfortran" ,gfortran-4.8)
1008 ("lapack-tar" ,(package-source lapack))))
1009 (outputs '("out" "doc"))
01480b9e
FB		 1010 ;; For the moment we drop support for MIPS at it fails to compile. See
1011 ;; https://lists.gnu.org/archive/html/guix-devel/2014-11/msg00516.html
1012 (supported-systems (delete "mips64el-linux" %supported-systems))
ec322be2
FB		 1013 (arguments
1014 `(#:parallel-build? #f
1015 #:parallel-tests? #f
f15615b1
LC		 1016
1017 ;; ATLAS tunes itself for the machine it is built on, as explained at
1018 ;; <http://lists.gnu.org/archive/html/guix-devel/2014-10/msg00305.html>.
1019 ;; For this reason, we want users to build it locally instead of using
1020 ;; substitutes.
1021 #:substitutable? #f
1022
ec322be2
FB		 1023 #:modules ((srfi srfi-26)
1024 (srfi srfi-1)
1025 (guix build gnu-build-system)
1026 (guix build utils))
1027 #:configure-flags
1028 `(;; Generate position independent code suitable for dynamic libraries
1029 ;; and use WALL timer to get more accurate timing.
1030 "-Fa" "alg" "-fPIC" "-D" "c" "-DWALL"
1031 ;; Set word width.
1032 "-b"
1033 ,,(if (string-match "64" (%current-system))
1034 "64"
1035 "32")
1036 ;; Disable parallel build as it gives errors: atlas_pthread.h is
1037 ;; needed to compile C files before it is generated.
1038 "-Ss" "pmake" "make -j 1"
af89a667
FB		 1039 ;; Probe is failing for MIPS. We therefore define the system
1040 ;; architecture explicitly by setting (-A) MACHINETYPE = 49
1041 ;; 'MIPSR1xK' and (-V) ISA = 1 'none'.
1042 ,,@(if (string-prefix? "mips" (%current-system))
1043 (list "-A" "49" "-V" "1")
1044 (list))
ec322be2
FB		 1045 ;; Generate shared libraries.
1046 "--shared"
1047 ;; Build a full LAPACK library.
1048 ,(string-append "--with-netlib-lapack-tarfile="
1049 (assoc-ref %build-inputs "lapack-tar")))
1050 #:phases
1051 (alist-cons-after
1052 'install 'install-doc
1053 (lambda* (#:key outputs inputs #:allow-other-keys)
1054 (let ((doc (string-append (assoc-ref outputs "doc")
1055 "/share/doc/atlas")))
1056 (mkdir-p doc)
1057 (fold (lambda (file previous)
1058 (and previous (zero? (system* "cp" file doc))))
1059 #t (find-files "../ATLAS/doc" ".*"))))
1060 (alist-cons-after
1061 'check 'check-pt
1062 (lambda _ (zero? (system* "make" "ptcheck")))
1063 ;; Fix files required to run configure.
1064 (alist-cons-before
1065 'configure 'fix-/bin/sh
1066 (lambda _
1067 ;; Use `sh', not `/bin/sh'.
1068 (substitute* (find-files "." "Makefile|configure|SpewMakeInc\\.c")
1069 (("/bin/sh")
1070 "sh")))
1071 ;; Fix /bin/sh in generated make files.
1072 (alist-cons-after
1073 'configure 'fix-/bin/sh-in-generated-files
1074 (lambda _
1075 (substitute* (find-files "." "^[Mm]ake\\.inc.*")
1076 (("/bin/sh")
1077 "sh")))
1078 ;; ATLAS configure program does not accepts the default flags
1079 ;; passed by the 'gnu-build-system'.
1080 (alist-replace
1081 'configure
1082 (lambda* (#:key native-inputs inputs outputs
1083 (configure-flags '())
1084 #:allow-other-keys #:rest args)
1085 (let* ((prefix (assoc-ref outputs "out"))
1086 (bash (or (and=> (assoc-ref
1087 (or native-inputs inputs) "bash")
1088 (cut string-append <> "/bin/bash"))
1089 "/bin/sh"))
1090 (flags `(,(string-append "--prefix=" prefix)
1091 ,@configure-flags))
1092 (abs-srcdir (getcwd))
1093 (srcdir (string-append "../" (basename abs-srcdir))))
1094 (format #t "source directory: ~s (relative from build: ~s)~%"
1095 abs-srcdir srcdir)
1096 (mkdir "../build")
1097 (chdir "../build")
1098 (format #t "build directory: ~s~%" (getcwd))
1099 (format #t "configure flags: ~s~%" flags)
1100 (zero? (apply system* bash
1101 (string-append srcdir "/configure")
1102 flags))))
1103 %standard-phases)))))))
1104 (synopsis "Automatically Tuned Linear Algebra Software")
1105 (description
1106 "ATLAS is an automatically tuned linear algebra software library
1107providing C and Fortran77 interfaces to a portably efficient BLAS
1108implementation, as well as a few routines from LAPACK.
1109
f15615b1
LC		 1110Optimization occurs at build time. For this reason, the library is built on
1111the machine where it is installed, without resorting to pre-built substitutes.
ec322be2 1112
f15615b1
LC		 1113Before building the library, CPU throttling should be disabled. This can be
1114done in the BIOS, or, on GNU/Linux, with the following commands:
ec322be2
FB		 1115
1116cpufreq-selector -g performance -c 0
1117...
1118cpufreq-selector -g performance -c N-1
1119
1120where N is the number of cores of your CPU. Failure to do so will result in a
1121library with poor performance.")
1122 (license license:bsd-3)))
jackhill's copy of GNU Guix: https://guix.gnu.org/