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| How to assign large memory for ap::real_2d_array? http://forum.alglib.net/viewtopic.php?f=2&t=19 |
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| Author: | franziss [ Sat Jun 05, 2010 6:36 am ] |
| Post subject: | How to assign large memory for ap::real_2d_array? |
I am using the function smatrixevd to calculate the eigenvectors of a large symmetric matrix ap::real_2d_array M, where its size is 10000 x 10000. But when I set M.setlength(10000,10000), I have errors. Can I set M to be a upper triangular matrix? So that memory space will not be exceeded? Thank you for your help. :D |
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| Author: | Sergey.Bochkanov [ Sun Jun 06, 2010 9:50 am ] |
| Post subject: | Re: How to assign large memory for ap::real_2d_array? |
Quote: Can I set M to be a upper triangular matrix? So that memory space will not be exceeded? Unfortunately, no. I have to rewrite linear algebra algorithms from scratch if I want them to be efficient enough on packed matrices. It will be implemented one day, but this item has low priority in my TODO list. |
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| Author: | franziss [ Sun Jun 06, 2010 12:06 pm ] |
| Post subject: | Re: How to assign large memory for ap::real_2d_array? |
oic, I will wait for your new version. I am a big fan of ALGLIB, thank you very much for sharing it. =) |
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