Re: Large arrays on 64 bit OS

[Jaroslav Hajek]

On Mon, Jan 4, 2010 at 9:53 PM, big-ted <address@hidden> wrote:
>
> OK, I'm running some code that generates some very large arrays, and I'm
> getting the tell-tale "memory exhausted" error. I have found the info at the
> following link:
>
> http://wiki.octave.org/wiki.pl?EnableLargeArrays
> http://wiki.octave.org/wiki.pl?EnableLargeArrays
>
> Now, I'm new to Octave, (but ok with MatLab) and to Linux. The instructions
> at the above link make no sense at all to me, and simply running the command
> lines as suggested results in "No targets specified and no makefile found."
> I notice that the link claims the instructions are good for octave 3.2.0 and
> up. I'm currently running octave 3.0.3. but running yum update octave
> insists that I already have the latest version. Actually, I have two
> systems. One 32 bit running Ubuntu 10, and one 64 bit running Fedora 10,
> both of which insist octave 3.0.3 is the latest and greatest version
> available. I can't find any rpm repositories to do a manual install of a
> later octave version either.p..
>
> Any help appreciated!!
>
>

Hi,
apparently you are a linux Newbie. The instructions you've found are
intended for those who build Octave from sources, and that is work for
experts. If you're still decided to give it a shot, start here:
http://wiki.octave.org/wiki.pl?BuildFromSource
but prepare a lot of patience.

As long as you want to just use repository packages of your GNU/Linux
distribution (Ubuntu or Fedora), you're stuck with the options that
the packagers enabled for you. I don't think that any distro provides
Octave with 64-bit indexing support.

I really doubt you have Ubuntu 10; it hasn't yet been released. Latest
Ubuntu 9.10 (Karmic Koala) provides octave 3.2:
http://packages.ubuntu.com/karmic/math/octave3.2
Fedora 10 was released before octave 3.2, so you're stuck with 3.0.x
there - major package updates normally don't go into minor distro
updates. I think the latest Fedora has octave 3.2.

hth

-- 
RNDr. Jaroslav Hajek, PhD
computing expert & GNU Octave developer
Aeronautical Research and Test Institute (VZLU)
Prague, Czech Republic
url: www.highegg.matfyz.cz