similar to: Problems with snowfall

Guys, I'm running R on both Windows & Linux. I'm looking at a number of packages for parallel execution. It seems that the most used packages are "snow" and "Rmpi". snow seems more user friendly, but it doesn't run on windows. I see from searching the mailing list that I'm not the first one to try it on Windows. There was a message that kind of shed some

I am trying to install SrcStatConnectorSrv(2) and rcom from local zip files. I have successfully downloaded both files (from CRAN for rcom CRAN Other for SrcStatConnectorSrv) and installed rcom. However, I get the following error message when I try to install SrcStatConnectorSrv (the version dated 21-Aug-2006: > utils:::menuInstallLocal() Error in gzfile(file, "r") : unable to open

Dear all, I am trying to execute the simple example in snowfall http://cran.r-project.org/web/packages/snowfall/vignettes/snowfall.pdf ... require(snow) require(snowfall) sfInit( parallel=TRUE, cpus=2 ) sfLapply( 1:10, exp ) sfStop() I have installed the snow and snowfall packages in R on a machine with windows xp, however, after running the "sfInit( parallel=TRUE, cpus=2 )" line I

Greetings, I am trying to use Reference Class methods in Snowfall, using R 2.12.1 on Ubuntu Natty. Using then directly seems to work (stanza 2 below), but using them indirectly does not (stanza 3 below). I get an "attempt to apply non-function" error. In addition to exporting the instance of the object I created to the Snowfall slaves, I also made several attempts to export the

Dear All, I have a question of how to export S4 class specification to clusters/workers in parallel computing. The package I used is snowfall. The problem is reproducible as follows. Any hint is greatly appreciated. Edwin Sun === begin =========== library(snowfall) sfInit(parallel = TRUE, cpus = 2) setClass("catt", representation(aa = "numeric")) setClass("dogg",

Dear users, I want to set up R to use one R-script directory and one R-library (directory for packages) for many end-users. I try to do this by using one network-share. This works fine as long as we don't use the snowfall package with parallel=TRUE (sfInit(parallel=TRUE, cpus=4, type="SOCK")). When running R with default settings (local library and local script directory)

Guys, I'm having troubles with Rmpi on Linux. I got it to work on windows, but on Linux (SuSE 64 bit), using OpenMPI, I can't seem to get it to work :( When I do library(Rmpi) I get the warning: mca: base: component_find: unable to open osc pt2pt: file not found (ignored) Interestingly enough all the examples from the snow tutorial ( http://www.sfu.ca/~sblay/R/snow.html) work despite

Hello, Just wondering why I am unable to run this in parallel. A dput of my dataset is attached at the end. Please use to create my data object. I want to run this function in parallel (not sure if this is an efficient implementation): #Function to calculate the time to maturity for the option require(fCalendar,quietly=TRUE) #Trying to calculate the trading days

Hi Sacha, On second thought, perhaps this is more the direction that you want ... X2 = cbind(X_train,y_train) colnames(X2)[3] = "y" regr2<-randomForest(y~x1+x2, data=X2,maxnodes=10, ntree=10) regr regr2 #Make prediction predictions= predict(regr, X_test) predictions2= predict(regr2, X_test) HTH, Eric On Tue, May 9, 2023 at 6:40?AM Eric Berger <ericjberger at gmail.com>

Dear Ola, I cannot say anything about Windows 7, as we do not have any Win7 machines here in our institute and I even do not know someone who have Win7 on a private machine. I will try to find a machine with this OS and test it. Anybody having experiences with Win7 yet? Greetings Jo > -------- Original Message -------- > Subject: [R] snowfall on Win7 > Date: Tue, 15 Dec 2009 11:25:37

Hi, I am looking at upgrading our existing Samba installs to 2.2.8 Some of the installations contain the parameter "shared mem size" in the smb.conf file. This parameter does not appear to be available in ver 2.2.8. Is there an alternative parameter or is this now defunct? Regards Jim Burns HSBC Group The HSBC Group's website is at http://www.hsbc.com

Guys, I'm running LAM 7.1.4 and R/Rmpi on a SuSE 9.3 box. When I do >library(Rmpi) The whole thing crashes with the following message: ----------------------------------------------------------------------------- No SSI RPI modules said that they were available to run. This should only happen if you request an MPI thread level that is too high (for example, none of the SSI RPI modules

Dear all, in the package its the print() method does not seem to correctly work in all circumstances: > selectMethod(print, "its") Method Definition: function (x, ...) { print(x@.Data <mailto:x@.Data> , ...) } <environment: namespace:its> Signatures: x target "its" defined "its" > fundPME.lst[[1]]$irr An object of

I feel like I've tried the works on something that should be obvious but I'm stuck. Package snowfall used to run just great under debian etch (amd-64, 2x quad-core). After upgrading to lenny (debian 5, reinstalled from scratch), I haven't been able to get snowfall running again. Password-less ssh works fine to localhost, its IP, or zero- config name. But when calling sfInit I

Hello dear R community. I just started playing with the snowfall package (a wrapper for the snow package), and found it very convenient. (See also this great website: http://www.imbi.uni-freiburg.de/parallel/ ) I was wondering if it is possible to connect snowfall with the foreach package (since it has some connection to snow). My final goal is to do some simple parallel simulations on my two

Does anyone know what this message is about? I keep getting this message once in a while after my rsync command is run for some time. rsync error: unexplained error (code 255) at rsync.c(541) [sender=3.0.4] Regards Jerry ************************************************************ HSBC Global Asset Management (Hong Kong) Limited whose registered address is HSBC Main Building, 1 Queen's

Hi All I found that the rsync cannot fully sync permission although I have specified the -A option. The ACL is ok but the permission itself is not. rsync command: rsync -rtgoDAh --stats --files-from=flist.txt --log-file=$DetailLogPath $OldPath $NewPath & Old Server (rsync version 3.0.4): -rw-r-----+ 1 43810537 imopfs 246784 Jul 22 10:17 miki2.sas7bdat New Server (rsync version

Hello, I don't know if the question pertains to Rmpi, snow or snowfall. I run my job by: mpirun -np N -hostfile $PBS_NODEFILE RMPISNOW -f my-script.r --slave In the snowfall sfInit call I have to specify one less CPU respect to the mpirun call sfInit(parallel=TRUE, cpus=N-1, type="MPI") otherwise I receive an error similar to: "cluster size N-1 already

Has anyone sucessfully used the maxnodes feature in randomForest? I tried setting it, but when it is non-NULL I always get back a forest in which all trees have size 1. I am using a continuous response (regression). Any help would be appreciated. Thanks. [[alternative HTML version deleted]]

Dear expeRts, I'm currently trying to get data from a PostgreSQL database _in parallel_. I tried two methods: * passing the DBI Connection object to the cluster nodes * connecting the the DB on each node (1) The execution of the first method looks like this: > result = sfClusterApplyLB(input, fun, dbiCon) and produces an "expired PostgreSQLConnection" error. (Of course the