Re: [infomap-nlp-users] Upper case chars / Limitation of columns

[Beate D. <do...@im...>]

Hi Tonio, David and Dominic,

On Sat, 15 Jul 2006, Dominic Widdows wrote:

> I agree with the solutions you posted below, couldn't have done better
> myself. It's possible to set COLUMNS in the default-params file, I
> don't know of any flag that prevents the number from being greater than
> 2999. Nor do I know off hand whether the matrix format in memory is
> scalable enough to handle a full term-by-term matrix. But this is
> certainly the place to begin looking.

The SVD interface sets a limit on the number of columns:
   #define NMAX    3000    /* bound on ncol, order of A          */
   (it's in infomap-nlp/svd/svdinterface/las2.c)

I don't know whether this line is part of the original SVDPACKC 
package (which was developed at the University of Tennesse and not by the 
infomap project). It probably is. You can try increasing the limit and 
see if the singular value decomposition is still successful.

Good luck!
Beate