forum.alglib.net

Hi there


I use

real_2d_array aux ;
aux.setlength(dim,dim);

when dim uper to 13000, it ok ; but when I try dim = 14000, error emergys.

So I wonder that, Does 'real_2d_array' has a upper limit of length ?
If so, is there any ways I could use a larger matrix (real_2d_array) operation ? 14000 is too insufficient .

Thanks ~

14000*14000 array needs 1.5*10^9 bytes of memory. I suppose that you work in a 32-bit environment. Such environments typically can not work with more than 2GB of memory, and actual limit can be even less (some part of these 2 GB's is already occupied). And even if you can allocate memory for 13000*13000 matrix, you should remember that most ALGLIB algorithms allocate temporary copies of input data, which need memory too.

Can you switch to 64-bit system?

when dim uper to 13000, it ok ; but when I try dim = 14000, error emergys.