From help-request at octave dot org Tue Feb 15 05:33:05 2005
Subject: Re: Octave and 64-bits
From: Fredrik Lingvall <fl at ifi dot uio dot no>
To: Clinton Chee <chee at maths dot unsw dot edu dot au>
CC: help at octave dot org
Date: Tue, 15 Feb 2005 01:38:42 -0600

Hi Clinton,

I am very interested of testing your version of octave. What is needed 
to port octave to
64-bits. Is it enough to change all int:s to long:s or is it more involved?

Fredrik


Clinton Chee wrote:

> Hi Fredrik,
>
> We at the High Performance Computing Support Unit at the University of 
> New South Wales have ported Octave (v.2.1.57) to 64 bits on an SGI 
> MIPSpro platform (should be quite protable). This has not been 
> absorbed to the main octave code base at octave.org yet. However, we 
> can make our version (based on v.2.1.57)available to you for further 
> testing. We are working on merging with the 2.1.64 version now.
>
> We have ran through the test-suite that came with Octave, and our 
> 64bits seem to pass the tests. You may need to test it out yourself to 
> verify 64bit-readiness. I don't think we use specific MIPSpro C++ code 
> so it should be portable to Solaris. There may be one or two lines in 
> the configuration file that need to be changed - that's all.
>
> Cheers,
> Clinton Chee
>
>
>
> Fredrik Lingvall wrote:
>
>> Hi All,
>>
>> We are trying to compile Octave on a 64-bit Solaris machine. So
>> far we have only been able to allocate about 2GB of ram, using
>>
>> A = ones(N,N);
>>
>> for example. Is Octave limited to 32-bit memory adressing or
>> can octave (given proper compiler flags) use the full 64-bit
>> adress space?
>>
>> Regards,
>>
>> Fredrik
>>
>>
>>
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-------------------------------------------------------------
Octave is freely available under the terms of the GNU GPL.

Octave's home on the web:  http://www.octave.org
How to fund new projects:  http://www.octave.org/funding.html
Subscription information:  http://www.octave.org/archive.html
-------------------------------------------------------------