This is in regards to the SNOW library.
I'm using Windows. The problem is that makeSOCKcluster hangs in R as well
as the DOS command line. Below I've shown that it completes the Rscript
until it reaches the line "slaveLoop(master)" , at which point it hangs.
=============================
In R:
> cl <-
makeSOCKcluster(names=c("localhost","localhost"),manual=T,outfile="jeff.log")
Manually start worker on localhost with
C:/PROGRA~1/R/R-214~1.2/bin/Rscript.exe "C:/Program
Files/R/R-2.14.2/library/snow/RSOCKnode.R" MASTER=localhost PORT=11590
OUT=jeff.log SNOWLIB=C:/Program Files/R/R-2.14.2/library
[HANGS]
================================
On the DOS Command Line:
C:\Documents and Settings\Jeff>C:/PROGRA~1/R/R-214~1.2/bin/Rscript.exe
"C:/Program Files/R/R-2.14.2/library/snow/RSOCKno
de.R" MASTER=localhost PORT=11590 OUT=jeff.log SNOWLIB=C:/Program
Files/R/R-2.14.2/library
[HANGS]
^C
C:\Documents and Settings\Jeff>type jeff.log
starting worker for localhost:11590
====================================
In the file RSOCKnode.R, stalls after last line, after executing
"slaveLoop(master)".
local({
master <- "localhost"
port <- "8765"
snowlib <- Sys.getenv("R_SNOW_LIB")
outfile <- Sys.getenv("R_SNOW_OUTFILE")
args <- commandArgs()
pos <- match("--args", args)
args <- args[-(1 : pos)]
for (a in args) {
pos <- regexpr("=", a)
name <- substr(a, 1, pos - 1)
value <- substr(a,pos + 1, nchar(a))
switch(name,
MASTER = master <- value,
PORT = port <- value,
SNOWLIB = snowlib <- value,
OUT = outfile <- value,
RANK = rank <- value,
TMPWS = tmpWsName <- value)
}
##**** these should be passed as arguments to makeNWSmaster
Sys.setenv(MASTER = master)
Sys.setenv(PORT = port)
Sys.setenv(RANK = rank)
Sys.setenv(TMPWS = tmpWsName)
if (! (snowlib %in% .libPaths()))
.libPaths(c(snowlib, .libPaths()))
library(methods) ## because Rscript as of R 2.7.0 doesn't load methods
library(nws)
library(snow)
sinkWorkerOutput(outfile)
master <- makeNWSmaster()
sendData(master, "ping")
cat("starting NWS worker\n")
slaveLoop(master)
})
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