Hi, SCC is linear, so it should not take too long. I would try a smaller
graph first, then a bit bigger one, etc. to see how it scales.

But it is suspicious that something went wrong.

G.

On Mon, Apr 27, 2015 at 4:12 PM, Santiago Videla <[email protected]>
wrote:

> Hi all,
>
> I recently started to use igraph (from python) and after playing a bit
> with it I loaded a directed graph with ~1.5 millions nodes and ~100
> millions edges. I know there are cycles and I'd like to identify them all
> (I believe that most of them are of the form A <-> B). I'm trying to
> compute the SCC of the graph. I guess there are plenty of things that in
> practice could have an impact on how the algorithm performs. But, does
> anyone have experience computing SCC on a graph of similar scale? How long
> (aprox) could it take? I ask because it has been running for 75 hours by
> now, and the memory seems quite stable around 3.5GB (Intel Core i5 2.67GHz
> - 16GB RAM).
>
> Do you think this is normal/expected? Should I just keep waiting?
>
> Regards,
>
> --
> Santiago Videla
> http://www.linkedin.com/in/svidela
>
> _______________________________________________
> igraph-help mailing list
> [email protected]
> https://lists.nongnu.org/mailman/listinfo/igraph-help
>
>
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