[BangPypers] Multiplying very large matrices

Santosh Rajan santrajan at gmail.com
Sat Jan 15 18:42:01 CET 2011


Hope this helps
http://stackoverflow.com/questions/1053928/python-numpy-very-large-matrices

On Sat, Jan 15, 2011 at 10:11 PM, kunal ghosh <kunal.t2 at gmail.com> wrote:
> Hi all,
> while implementing Locality Preserving Projections ,
> at one point i have to perform X L X.transpose()
> these matrices are large (32256 x 32256) so i get "out of memory" error.
>
> I assume, as the dataset gets larger one would come across this problem ,
> how would
> one go about solving this ? Is there a common trick that is used to deal
> with such problems ?
> Or the workstation calculating these problems needs to have HUGE  amounts of
> physical memory ?
>
> I am using python and numpy / scipy
>
> --
> regards
> -------
> Kunal Ghosh
> Dept of Computer Sc. & Engineering.
> Sir MVIT
> Bangalore,India
>
> permalink: member.acm.org/~kunal.t2
> Blog:kunalghosh.wordpress.com
> Website:www.kunalghosh.net46.net
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