Re: Processing Large Memory arrays in Octave under WinXP 32bit

[Jaroslav Hajek]

On Fri, Feb 12, 2010 at 2:07 PM, David Grundberg <address@hidden> wrote:
> Journeaux, Ian wrote:
>>
>> I am new to Octave (and MatLab for that matter) and I am trying to
>> evaluate if I can use Octave for a project on a WinXP Pro 32-bit system. I
>> seem to be running out of memory  when I try to run a m-file.
>>
>>
>> To simplify the troubleshooting I reduced the problem down to
>>
>>
>> a(3000,3000) = 0;
>>
>> b=imrotate(a,5);
>>
>>
>> this gives an error: memory exhausted. I have 2.6Gb for physical memory.
>>
>>
>> Do I have any options? It would be easier for me to stay with the XP 32bit
>> platform but XP 64-bit or Unix are possibilities.
>>
>>
>>
>>
>> */Ian Journeaux/*
>>
>
>
> I'm doing custom image transformations on 3888x2592 gray-level (and RGB)
> images, so I've similar concerns.
>
> The problem isn't about indexing size (so 64-bit wouldn't help), but with
> the imrotate call being too memory intensive.
>

Part of the problem seems to be interp2. I'll see what I can do.


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