Re: [igraph] How to solve the "out of the memory" problem

[Gabor Csardi]

Hmmmm, 'alpha.centrality' is not very good, it uses the adjacency 
matrix, it is thus inappropriate for large graphs. Here is what 
you can do using the 'Matrix' package:

http://lists.gnu.org/archive/html/igraph-help/2008-04/msg00049.html

I hope it helps,
Gabor

On Sat, May 17, 2008 at 01:20:10PM -0400, Gang Su wrote:
> No i have tried network with 10k nodes and 100k edges on a 2G mem 
> machine and it was totally fine.
> maybe you can send me your data and i can take a look.
> 
> lan gao wrote:
> >My system memory is 1.5 Gb. The graph has around 4900 nodes and 7000 
> >edges.
> > 
> >The R says error happens when call get. adjacency due to out of 
> >memory. adjacency matrix is 4900 by 4900 , Is this huge for R?
> > 
> >Is there anyway to fix this ?
> >Many thanks.
> > 
> >Lani
> >
> >On Fri, May 16, 2008 at 11:52 AM, Gang Su <address@hidden 
> ><mailto:address@hidden>> wrote:
> >
> >    What is your system memory? How many edges are there?
> >    This is not a very large network tho.
> >
> >    Gang
> >
> >    lan gao wrote:
> >
> >        Hi, all
> >               I want to calculate the alpha.centrality of a large
> >        graph with about 4900 vetices.
> >        R says "cannot reserve space for vector, Out of memory" . Is
> >        there anyway to large the memory ?
> >        Thanks bunches.
> >          Lani
> >        
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-- 
Csardi Gabor <address@hidden>    UNIL DGM