Hi Jim,
jim holtman <jholt...@gmail.com> writes:
> Here is what it does locally on my PC:
>
>> library("igraph")
>> topo_data <- read.table(text = "ibcore01 ibswitch01
> + ibcore01 ibswitch02
> + ibcore01 ibswitch03
> + ibcore02 ibswitch01
> + ibcore02 ibswitch02
> + ibcore02 ibswitch03
> + ibswitch01 node001
> + ibswitch01 node002
> + ibswitch01 node003
> + ibswitch02 node004
> + ibswitch02 node005
> + ibswitch02 node006
> + ibswitch03 node007
> + ibswitch03 node008
> + ibswitch03 node009" ,head=FALSE)
>> system.time({
> + network_data <-graph.data.frame(topo_data, directed=F)
> + plot(network_data)
> + })
> user system elapsed
> 0.01 0.01 0.03
>>
>>
>
> Does not seem too slow. Creating a PDF file takes a little longer:
>
>> library("igraph")
>> topo_data <- read.table(text = "ibcore01 ibswitch01
> + ibcore01 ibswitch02
> + ibcore01 ibswitch03
> + ibcore02 ibswitch01
> + ibcore02 ibswitch02
> + ibcore02 ibswitch03
> + ibswitch01 node001
> + ibswitch01 node002
> + ibswitch01 node003
> + ibswitch02 node004
> + ibswitch02 node005
> + ibswitch02 node006
> + ibswitch03 node007
> + ibswitch03 node008
> + ibswitch03 node009" ,head=FALSE)
>> system.time({
> + network_data <-graph.data.frame(topo_data, directed=F)
> + pdf('test.pdf')
> + plot(network_data)
> + dev.off()
> + })
> user system elapsed
> 0.09 0.00 0.16
>
> The PDF file is attached. So maybe it is something with your remote
> connection.
You're right. Running locally even the plot of complete network takes
less than 0.2 seconds via the X11 device. I'll have a closer look at
the connection.
Thanks,
Loris
> Jim Holtman
> Data Munger Guru
>
> What is the problem that you are trying to solve?
> Tell me what you want to do, not how you want to do it.
>
> On Fri, Jul 3, 2015 at 3:21 AM, Loris Bennett <loris.benn...@fu-berlin.de>
> wrote:
>
>> Hi,
>>
>> With the following data
>>
>> ibcore01 ibswitch01
>> ibcore01 ibswitch02
>> ibcore01 ibswitch03
>> ibcore02 ibswitch01
>> ibcore02 ibswitch02
>> ibcore02 ibswitch03
>> ibswitch01 node001
>> ibswitch01 node002
>> ibswitch01 node003
>> ibswitch02 node004
>> ibswitch02 node005
>> ibswitch02 node006
>> ibswitch03 node007
>> ibswitch03 node008
>> ibswitch03 node009
>>
>> in the file "topology.txt"
>>
>> and the following code:
>>
>> library("igraph")
>> topo_data <- read.csv(file="topology.txt",head=FALSE,sep="\t")
>> network_data <-graph.data.frame(topo_data, directed=F)
>> plot(network_data)
>>
>> it takes about 5 seconds for the plot to be drawn with R 3.2.0 on a
>> 12-core 2.67 GHz Xeon X5650 server with no other CPU-intensive processes
>> running.
>>
>> This strikes me as rather slow, particularly as my full network has over
>> 120 components and the plot takes around 50 seconds.
>>
>> Am I doing anything wrong?
>>
>> (I am working over an ssh connection with X forwarding, but plotting to
>> a PDF file on the server does not seem to be faster.)
>>
>> Cheers,
>>
>> Loris
>>
>> --
>> This signature is currently under construction.
>>
>> ______________________________________________
>> R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see
>> https://stat.ethz.ch/mailman/listinfo/r-help
>> PLEASE do read the posting guide
>> http://www.R-project.org/posting-guide.html
>> and provide commented, minimal, self-contained, reproducible code.
>>
>
--
Dr. Loris Bennett (Mr.)
ZEDAT, Freie Universität Berlin Email loris.benn...@fu-berlin.de
______________________________________________
R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see
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PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.
