Re: Memory exaustion or size too large for index

[Carlo de Falco]

On 25 Feb 2010, at 11:47, Jaroslav Hajek wrote:

> In 3.2.x with 32-bit indexing, the limit is 2GB of memory per array.
> The development version has this fixed and the limit is 2^31 elements
> per array (so it's 16GB for double real matrix).

mmmhh... you mean the limit is 16GB even if octave is compiled without  
--enable-64 ?
with the current development sources (pulled yesterday) indeed

>> version
ans = 3.3.50+
>> a=zeros (1024, 1024, 1024);

does not give a "memory exhausted" error but

>> a(1,1,1)
ans = -2.0000

and

>> whos a
Variables in the current scope:

  Attr Name        Size                     Bytes  Class
  ==== ====        ====                     =====  =====
       a        1024x1024x1024                  0  double

Total is 1073741824 elements using 0 bytes

I've built octave on MacOS X 10.5 using gcc 4.2.1 and gfortran 4.2.3
c.