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. 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. >
test.pdf
Description: Adobe PDF document
______________________________________________ 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.