[Pkg-octave-devel] Bug#779943: octave: Enable large arrays: Build octave such that it can use arrays larger than 2 GB

[Fabrice Allibe]

Package: octave
Version: 3.8.2-4
Severity: wishlist

Dear Maintainer,

the size of a single Octave array cannot exceed 2 GB of memory because octave is not built with "--enable-64" flag

Additional info:

http://wiki.octave.org/Enable_large_arrays:_Build_octave_such_that_it_can_use_arrays_larger_than_2Gb
www.gnu.org/software/octave/doc/interpreter/Compiling-Octave-with-64_002dbit-Indexing.html
http://lists.alioth.debian.org/pipermail/pkg-octave-devel/2013-May/010083.html

It appears this will require 64-bit versions of at least ATLAS, qrupdate and suitesparse as well.

There is a recent blog post about an "Octave with 64-bit indexing" built on Ubuntu 14.04: http://calaba.tumblr.com/post/107087607479/octave-64

The guy explains well why the need of 64-bit indexing, especially for stuff around big data analysis.

He is even providing a github repository about this octave recompilation: https://github.com/calaba/octave-3.8.2-enable-64-ubuntu-14.04

Maybe it can help progressing on Debian side ?

-- System Information:
Debian Release: 8.0
  APT prefers testing-updates
  APT policy: (500, 'testing-updates'), (500, 'testing')
Architecture: amd64 (x86_64)

Kernel: Linux 3.16.0-4-amd64 (SMP w/8 CPU cores)
Locale: LANG=fr_FR.UTF-8, LC_CTYPE=fr_FR.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: sysvinit (via /sbin/init)

Versions of packages octave depends on:
ii  default-jre-headless             2:1.7-52
ii  libamd2.3.1                      1:4.2.1-3
ii  libarpack2                       3.1.5-3
ii  libatlas3-base [liblapack.so.3]  3.10.2-7
ii  libblas3 [libblas.so.3]          1.2.20110419-10
ii  libc6                            2.19-13
ii  libcamd2.3.1                     1:4.2.1-3
ii  libccolamd2.8.0                  1:4.2.1-3
ii  libcholmod2.1.2                  1:4.2.1-3
ii  libcolamd2.8.0                   1:4.2.1-3
ii  libcxsparse3.1.2                 1:4.2.1-3
ii  libfftw3-double3                 3.3.4-2
ii  libfftw3-single3                 3.3.4-2
ii  libfltk-gl1.3                    1.3.2-6+b1
ii  libfltk1.3                       1.3.2-6+b1
ii  libfontconfig1                   2.11.0-6.3
ii  libfreetype6                     2.5.2-2
ii  libgcc1                          1:4.9.1-19
ii  libgl1-mesa-glx [libgl1]         10.3.2-1
ii  libglpk36                        4.55-1
ii  libglu1-mesa [libglu1]           9.0.0-2
ii  libgomp1                         4.9.1-19
ii  libgraphicsmagick++3             1.3.20-3+deb8u1
ii  libgraphicsmagick3               1.3.20-3+deb8u1
ii  liblapack3 [liblapack.so.3]      3.5.0-4
ii  liboctave2                       3.8.2-4
ii  libqhull6                        2012.1-5
ii  libqrupdate1                     1.1.2-1
ii  libqscintilla2-11                2.8.4+dfsg-1
ii  libqt4-network                   4:4.8.6+git64-g5dc8b2b+dfsg-2+b1
ii  libqtcore4                       4:4.8.6+git64-g5dc8b2b+dfsg-2+b1
ii  libqtgui4                        4:4.8.6+git64-g5dc8b2b+dfsg-2+b1
ii  libstdc++6                       4.9.1-19
ii  libumfpack5.6.2                  1:4.2.1-3
ii  libx11-6                         2:1.6.2-3
ii  octave-common                    3.8.2-4
ii  texinfo                          5.2.0.dfsg.1-6

Versions of packages octave recommends:
ii  gnuplot-x11     4.6.6-2
ii  libatlas3-base  3.10.2-7
pn  pstoedit        <none>

Versions of packages octave suggests:
pn  octave-doc      <none>
pn  octave-htmldoc  <none>
pn  octave-info     <none>

-- no debconf information