Displaying 20 results from an estimated 500 matches similar to: "Multicore computation in Windows network: How to set up Rmpi"
2008 Nov 06
1
trouble with html help
I have this problem with R 2.6.1 and 2.7.1 (have not tried others)
running on Windows XP:
Html help has wrong links to help files. The index.html is correctly
found from
file:///C:/PROGRA~1/R/R-26~1.1/doc/html/index.html
as well as the search engine
file:///C:/PROGRA~1/R/R-26~1.1/doc/html/search/SearchEngine.html
However, when I search for, say, "paste", I will be pointed to
2007 Dec 28
4
Return Value of TCl/Tk window in R
Hello,
I have the TCl/Tk command
"tkmessageBox(titel="",message="x",icon="question",type="okcancel")" in my R
script. Now I want to perform some operation in relation to the user's
choice, something like
"if (okpressed) xxx else yyy"
What values does this command give and how are they used?
Thank you, Richard
--
Richard M?ller -
2008 Apr 25
2
force glm estimates to be nonnegative
Is there a way to force certain formula parameters to be nonnegative?
What I want to do is to estimate student capacity over time, namely by
> capacity ~ Student + Student:Day
I add this formula to a glm call and obtain negative learning slope estimates (Student:Day) in some cases.
However, I don't want to allow for that. In such a case, glm should solve
> capacity ~ Student
and
2008 Jul 04
2
experinental revision of the 'snow' package
A new version of the 'snow' package for parallel computing in R is
available at
http://www.stat.uiowa.edu/~luke/R/cluster/snow_0.3-3.tar.gz
This substantially revises the way in which worker processes are
started to allow snow to be used on Windows and Mac/Windows/Linux
combinations. I have successfully used the SOCK version on a
standalone Windows machine and combinations of
2008 Jul 16
3
Snow or alternative MPI packages on Windows
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
2008 Sep 08
1
RMPI Question
Dear R Users,
I have a relatively simple rmpi question.
My configation is:
- R version 2.7.2
- rmpi 0.5-6
- Deino MPI 1.1.0
- Windows XP SP2
After succesfully spawning slaves, I am trying to assign values to
variables in the environment of each slave and run some simple calcs. This
appears to fail, as below: my assignment of value "1" to variable "a"
appears to come back
2007 Sep 03
1
Snow on Windows Cluster
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
2008 Jul 01
2
problem with mpiexec and Rmpi
Dear R People:
I'm having some trouble with mpiexec and Rmpi.
I would like to be able to pass in the number of "children" via the
mpiexec command (from the command line).
this is in SUSE10.1, with R-2.7.1
Here are my files:
cat eb.R
library(Rmpi)
mpi.remote.exec(paste("i am",mpi.comm.rank(),"of",mpi.comm.size()))
mpi.quit()
hodgesse at
2009 Jun 11
1
help installing Rmpi
Hello R users and developers,
I would like to install Rmpi so that I may take advantage of all of
the CPUs in my computer, but I cannot get it to install and I am not
very good with linux so it is adding to the headache. I have looked
through the help archive, but I have not been successful at getting
Rmpi to work. I am not sure if I am even installing openMPI correctly
in linux. I would really
2008 Sep 30
1
prblems changing directory in mpi snow clusters
Dear R Users,
I am attempting to use snow with rmpi.
My configuration is:
- R Version 2.7.2, rmpi
- RMPI 0.5-6
- DeinoMPI 1.1.0
- Windows Xp SP2
I can sucessfully create a cluster and execute simple commands but for
some reason, I cannot change the working directory in my nodes.
> noclusters<-2
> cl <- makeCluster(noclusters, type = "MPI")
2 slaves are spawned
2011 Feb 01
1
Rmpi; sample code not running, the slaves won't execute commands
Hi All,
I'm trying to parallelize some code using Rmpi and I've started with a
sample 'hello world' program that's available at
http://math.acadiau.ca/ACMMaC/Rmpi/sample.html. The code is as
follows;
# Load the R MPI package if it is not already loaded.
if (!is.loaded("mpi_initialize")) {
library("Rmpi")
}
# Spawn as many slaves as possible
2008 Oct 03
0
snow/rmpi using deinompi question
Dear R Users,
I have set-up:
- R 2.7.2
- rmpi using deinoMPI, and
- snpw
on two Windows XP machines. I would like to use the
makeCluster(...,"MPI") command to create a cluster. Assume the machines
are A and B. I would like the master to be on A and the nodes to be on B.
How do I achieve this outcome ?
I can see both machines using the DeinoMPI GUI.
Thanks in advance,
Tolga
2008 Mar 20
1
Rmpi and C Code, where to get the communicator
Hello,
I try to write parts of my code in C to accelerate the for-loops. But
basic operations I want to do in R (e.g. start cluster). My R code looks
something like this:
library(Rmpi)
mpi.spawn.Rslaves()
mpi.remote.exec(....)
dyn.load("test.so")
erg <- .Call("test", ....)
....
mpi.close.Rslaves()
mpi.quit()
And my C function looks something like this:
#include
2010 Jul 12
1
How to use mpi.allreduce() in Rmpi?
Hi everybody!
I have the next code which makes a reduction of the *a *variable in two
slaves, using the Rmpi package.
library(Rmpi)
mpi.spawn.Rslaves(nslaves=2)
reduc<-function(){
a<-mpi.comm.rank()+2
mpi.reduce(a,type=2, op="prod")
return(paste("a=",a))
}
mpi.bcast.Robj2slave(reduc)
mpi.remote.exec(reduc())
cat("Product: ")
2010 Jul 12
1
How to use mpi.allreduce() in Rmpi?
Hi everybody!
I have the next code which makes a reduction of the *a *variable in two
slaves, using the Rmpi package.
library(Rmpi)
mpi.spawn.Rslaves(nslaves=2)
reduc<-function(){
a<-mpi.comm.rank()+2
mpi.reduce(a,type=2, op="prod")
return(paste("a=",a))
}
mpi.bcast.Robj2slave(reduc)
mpi.remote.exec(reduc())
cat("Product: ")
2001 Oct 04
1
sort data.frame and contour()
Dear all,
I would like to know if there is a function for sorting a data.frame based
on one column. sort() does it for a single vector but not for the whole
data. order() does it if there are relations between the columns but in my
case it is simply a data.frame.
Further, I would like to plot other data,
pop.size<- c(800, 800, 1500, 1000, 158, 300, 740, 250, 2000, 1500, 250, 700)
2008 Dec 16
1
Prediction intervals for zero inflated Poisson regression
Dear all,
I'm using zeroinfl() from the pscl-package for zero inflated Poisson
regression. I would like to calculate (aproximate) prediction intervals
for the fitted values. The package itself does not provide them. Can
this be calculated analyticaly? Or do I have to use bootstrap?
What I tried until now is to use bootstrap to estimate these intervals.
Any comments on the code are welcome.
2008 Sep 27
1
Problem with R on dual core under Linux - can not execute mpi.spawn.Rslaves()
Hi
I am trying to utilize my dual core processor (and later a
High-performance clusters (HPC) ) by using the Rmpi, snow, snowfall,
... packages, but I am struggling at the beginning, i.e. to initialise
the "cluster" on my dual core computer. Whenever I try to initialize
it (via sfInit(parallel=TRUE, cpus=2) or mpi.spawn.Rslaves(nslaves=2)
), I get an error message:
>
2006 Oct 12
5
DO NOT REPLY [Bug 4168] New: Random file has vanished when syncing clock with ntpdate/hwclock ?
https://bugzilla.samba.org/show_bug.cgi?id=4168
Summary: Random file has vanished when syncing clock with
ntpdate/hwclock ?
Product: rsync
Version: 2.6.4
Platform: x86
OS/Version: Linux
Status: NEW
Severity: major
Priority: P3
Component: core
AssignedTo: wayned@samba.org
2008 Nov 07
1
Rmpi task-pull
Hi, I'm testing the efficiency of the Rmpi package regarding parallelization
using a cluster.
I've found and tried the task pull programming method, but even if it is
described as the best method, it seems to cause deadlock, anyone could help
me in using this method?
here is the code I've found and tried:
# Initialize MPI
library("Rmpi")
# Notice we just say "give us