Re: [igraph] page.rank speed

[Sam Steingold]

> * Tamás Nepusz <address@hidden> [2013-07-31 22:23:33 +0200]:
>
>> page.rank has been running forever:
> [...]
>> on
>> 
>> IGRAPH DN-- 12062801 15279166 --
>> attr: name (v/c)
>> 
>> is this normal?
> decrease the maximum number of iterations allowed.

Error in page.rank(graph, options = list(niter = 2)) :
  At arpack.c:1178 : ARPACK error, The Schur form computed by LAPACK routine 
dlahqr could not be reordered by LAPACK routine dtrsen.
Calls: p.s.t -> system.time -> page.rank
Timing stopped at: 131052.8 3.339 131347

it appears to die at about the same time as without niter.
looks like it dies during the first iteration.

-- 
Sam Steingold (http://sds.podval.org/) on Ubuntu 13.04 (raring) X 11.0.11303000
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