Hello, the package snow is not working on a windows cluster with MPICH2 and Rmpi. There is an error in makeCluster:
launch failed: CreateProcess(/usr/bin/env "RPROG="C:\Programme\R\R-2.5.1\bin\R" "OUT=/dev/null" "R_LIBS=" C:/Programme/R/R-2.5.1/library/snow/RMPInode.sh) on 'cl1' failed, error 3 - Das System kann den angegbenen Pfad nicht finden. I looked into makeMPIcluster. It could not work, mpi.comm.spawn gets the shell command for unix to start the slaves. A simple solution is to use the windows-code from mpi.spawn.rslaves, then it looks like this. And is working on our windows-cluster. (small failures on stopping cluster) # Fro windows if (.Platform$OS=="windows"){ workdrive <- unlist(strsplit(getwd(),":"))[1] tmpdrive <- unlist(strsplit(tempdir(),":"))[1] worktmp <- as.logical(toupper(workdrive)==toupper(tmpdrive)) tmpdir <- unlist(strsplit(tempdir(),"/Rtmp"))[1] localhost <- Sys.getenv("COMPUTERNAME") networkdrive <-.Call("RegQuery", as.integer(2),paste("NETWORK\\",workdrive,sep=""), PACKAGE="Rmpi") remotepath <-networkdrive[which(networkdrive=="RemotePath")+1] mapdrive=TRUE mapdrive <- as.logical(mapdrive && !is.null(remotepath)) Rscript=system.file("slaveload.R", package="snow") arg <- c(Rscript, R.home(), workdrive, getwd(),worktmp, tmpdir, localhost, mapdrive, remotepath) #Rscript,R_HOME,WDrive,WDir,WorkTmp,TmpDir,Master,MapDrive,RemotePath print("super") count<-mpi.comm.spawn( slave=system.file("Rslaves.bat", package="Rmpi"), slavearg=arg, nslaves=count) } else{ # for unix count <- mpi.comm.spawn(slave = "/usr/bin/env", slavearg = args, nslaves = count, intercomm = intercomm) } Doing some work, there should be a better and nicer solution with directly using mpi.spawn.Rslaves. Best Markus -- Dipl.-Tech. Math. Markus Schmidberger Ludwig-Maximilians-Universität München IBE - Institut für medizinische Informationsverarbeitung, Biometrie und Epidemiologie Marchioninistr. 15, D-81377 Muenchen URL: http://ibe.web.med.uni-muenchen.de Mail: Markus.Schmidberger [at] ibe.med.uni-muenchen.de ______________________________________________ R-devel@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-devel