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Re: [igraph] experiences with combining igraph with one of the multicore

From: Martin Tomko
Subject: Re: [igraph] experiences with combining igraph with one of the multicore/parallel processing packages from R
Date: Tue, 31 Aug 2010 11:55:36 +0200
User-agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv: Gecko/20100227 Lightning/1.0b1 Thunderbird/3.0.3

Thank you Gabor,
I am currently evaluating my options, being bound to Win and not having admin privileges on the Server... it is a pain.
Running multiple igraph functions at the same time is exactly what I want.

and I guess I have to rewrite some of my functions to fit lapply and similar functions, I have been using too many loops. But I am getting into troubles when I do something like lapply(graph,function), I guess because of coercing graphs into lists...

Anyway, I will report about how I go.

On 8/31/2010 11:48 AM, Gábor Csárdi wrote:

I used snow with an MPI backend (LAM), and it works fine. It is also
very easy to use, on a multicore machine or on a cluster.

This will not make igraph functions faster, of course, but you can run
more functions at the same time.


On Mon, Aug 30, 2010 at 1:47 PM, Martin Tomko<address@hidden>  wrote:
Does anyone have experiences integrating one of the multicore approaches in
R with igraph?
I see that multicore will not run on Win, did anyone play around with
foreach, or mapReduceR or others?


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Martin Tomko
Postdoctoral Research Assistant

Geographic Information Systems Division
Department of Geography
University of Zurich - Irchel
Winterthurerstr. 190
CH-8057 Zurich, Switzerland

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