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-rw-r--r--gnu/packages/maths.scm77
1 files changed, 77 insertions, 0 deletions
diff --git a/gnu/packages/maths.scm b/gnu/packages/maths.scm
index 49fdacef04..2fe06a3956 100644
--- a/gnu/packages/maths.scm
+++ b/gnu/packages/maths.scm
@@ -589,3 +589,80 @@ library routines perform an LU decomposition with partial pivoting and
triangular system solves through forward and back substitution. The library
also provides threshold-based ILU factorization preconditioners.")
(license license:bsd-3)))
+
+(define-public scotch
+ (package
+ (name "scotch")
+ (version "6.0.0")
+ (source
+ (origin
+ (method url-fetch)
+ (uri (string-append "https://gforge.inria.fr/frs/download.php/31831/"
+ "scotch_" version ".tar.gz"))
+ (sha256
+ (base32 "0yfqf9lk7chb3h42777x42x4adx0v3n0b41q0cdqrdmscp4iczp5"))
+ (patches (list (search-patch "scotch-test-threading.patch")))))
+ (build-system gnu-build-system)
+ (inputs
+ `(("zlib" ,zlib)
+ ("flex" ,flex)
+ ("bison" ,bison)))
+ (arguments
+ `(#:phases
+ (alist-cons-after
+ 'unpack 'chdir-to-src
+ (lambda _ (chdir "src"))
+ (alist-replace
+ 'configure
+ (lambda _
+ (call-with-output-file "Makefile.inc"
+ (lambda (port)
+ (format port "
+EXE =
+LIB = .a
+OBJ = .o
+MAKE = make
+AR = ar
+ARFLAGS = -ruv
+CCS = gcc
+CCP = mpicc
+CCD = gcc
+CPPFLAGS =~{ -D~a~}
+CFLAGS = -O2 -g $(CPPFLAGS)
+LDFLAGS = -lz -lm -lrt -lpthread
+CP = cp
+LEX = flex -Pscotchyy -olex.yy.c
+LN = ln
+MKDIR = mkdir
+MV = mv
+RANLIB = ranlib
+YACC = bison -pscotchyy -y -b y
+"
+ '("COMMON_FILE_COMPRESS_GZ"
+ "COMMON_PTHREAD"
+ "COMMON_RANDOM_FIXED_SEED"
+ ;; TODO: Define once our MPI supports
+ ;; MPI_THREAD_MULTIPLE
+ ;; "SCOTCH_PTHREAD"
+ ;; "SCOTCH_PTHREAD_NUMBER=2"
+ "restrict=__restrict")))))
+ (alist-replace
+ 'install
+ (lambda* (#:key outputs #:allow-other-keys)
+ (let ((out (assoc-ref outputs "out")))
+ (mkdir out)
+ (zero? (system* "make"
+ (string-append "prefix=" out)
+ "install"))))
+ %standard-phases)))))
+ (home-page "http://www.labri.fr/perso/pelegrin/scotch/")
+ (synopsis "Programs and libraries for graph algorithms")
+ (description "SCOTCH is a set of programs and libraries which implement
+the static mapping and sparse matrix reordering algorithms developed within
+the SCOTCH project. Its purpose is to apply graph theory, with a divide and
+conquer approach, to scientific computing problems such as graph and mesh
+partitioning, static mapping, and sparse matrix ordering, in application
+domains ranging from structural mechanics to operating systems or
+bio-chemistry.")
+ ;; See LICENSE_en.txt
+ (license license:cecill-c)))