I don't see this on my setup (OS X 10.5.6, R 2.8.0, snow 0.3-3). As
snow does not use a name space it is possible that something else you
have loaded is masking a snow internal function. Another possibility
might be that your worker processes are picking up different versions
of R or snow. You might look at what traceback() says and/or use
clusterEvalQ to query the workers for R and snow versions.
luke
On Wed, 31 Dec 2008, Greg Riddick wrote:
Hello All,
I can run the "lower level" functions OK, but many of the higher level
(eg. parSApply) functions are generating errors.
When running the example (from the snow help docs) for parApply on
MacOSX 10.5.5, I get the
following error:
cl <- makeSOCKcluster(c("localhost","localhost"))
sum(parApply(cl, matrix(1:100,10), 1, sum))
Error in do.call("fun", lapply(args, enquote)) :
could not find function "fun"
Any ideas? Do I possibly need MPI or PVM to run the "Apply" functions?
Thanks,
--
Luke Tierney
Chair, Statistics and Actuarial Science
Ralph E. Wareham Professor of Mathematical Sciences
University of Iowa Phone: 319-335-3386
Department of Statistics and Fax: 319-335-3017
Actuarial Science
241 Schaeffer Hall email: l...@stat.uiowa.edu
Iowa City, IA 52242 WWW: http://www.stat.uiowa.edu
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