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| Does 'real_2d_array' has a upper limit of length ? http://forum.alglib.net/viewtopic.php?f=2&t=509 |
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| Author: | Cheng [ Tue Dec 27, 2011 10:01 am ] |
| Post subject: | Does 'real_2d_array' has a upper limit of length ? |
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 ~ |
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| Author: | Sergey.Bochkanov [ Thu Dec 29, 2011 8:23 am ] |
| Post subject: | Re: Does 'real_2d_array' has a upper limit of length ? |
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? |
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| Author: | carryonjutta [ Fri Jan 02, 2015 4:49 am ] |
| Post subject: | Re: Does 'real_2d_array' has a upper limit of length ? |
when dim uper to 13000, it ok ; but when I try dim = 14000, error emergys. |
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