help-octave
[Top][All Lists]
Advanced

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: Re: Largest Matrix Size for Octave


From: address@hidden
Subject: Re: Re: Largest Matrix Size for Octave
Date: Mon, 19 Jun 2017 05:37:22 +0900 (JST)

--- tmacchant
> ----- Original Message -----
> 
> > From: evansste 
> > To: help-octave
> > Cc: 
> > Date: 2017/6/19, Mon 01:57
> > Subject: Largest Matrix Size for Octave
> > 
> > I've done some online searching, and according to a 6-year-old post, it 
> > seems
> > that the largest acceptable matrix size for Octave is 2^31-2 elements, which
> > would use about 16 GB of RAM.  Is this still the case, or do current
> > versions of Octave allow 2^48-1 elements?
> > 
> > The 2^48-1 number was obtained from the following post that I saw about
> > MATLAB's limitations:
> > 
> > https://www.mathworks.com/matlabcentral/answers/91711-what-is-the-maximum-matrix-size-for-each-platform
> > 
> > This post shows a chart, which gives the above numbers I just mentioned.
> > 
> > Here's the 6-year-old Octave post that I talked about:
> > 
> > http://octave.1599824.n4.nabble.com/memory-td3427479.html
> > 
> > It was from this post that I got the 16 GB number, which leads me to think
> > that this correlates to 2^31-2 elements, based on the MATLAB post.
> > 
> > Both of these posts are old.  Does anyone know whether or not Octave now
> > supports matricies which contain 2^48-1 elements?
> > 
> > Thanks so much for your time.
> > 
> On which platform, are you using octave (windows, linux, or mac etcs.)?
> For windows, octave 4.2.1 binary of with large arrays had been uploaded by me
> http://octave.1599824.n4.nabble.com/Octave-on-Windows-with-large-arrays-td4682366.html#a4682482
> 
> HTH
> 
> Tatsuro
> 
If you are not a windows user, you have to build octave with related 
dependencies using 64bit indexing.

See : 
https://www.gnu.org/software/octave/doc/interpreter/Compiling-Octave-with-64_002dbit-Indexing.html

HTH

Tatsuro



reply via email to

[Prev in Thread] Current Thread [Next in Thread]