[R-SIG-Mac] Can snow be used to multithread?

Richard Pearson richard.pearson at well.ox.ac.uk
Mon Dec 1 13:25:47 CET 2008


You should be able to use snow with open-mpi on your macpro. You should also be 
able to use snow with the "sockets" method, e.g.

cl <- makeCluster(rep("localhost", 8), type = "SOCK")

Note that there's a separate list, R-sig-hpc, for parallelisation issues.



Blanchette, Marco wrote:
 > I am fairly sure that this topic has been covered before. However, I can't 
find answer to my questions in the archive...
 > I have a very embarrassingly parallel computing tasks (we are doing ~13,000 
anovas and ~48,000 t.tests) that could benefits from using the snow packages 
parLapply() function.
 > Does anyone knows whether I could use MPI or PVM to send jobs to the 8 cores 
of my MacPro using snow or MPI/PVM has to be absolutely install and run across 
multiple machine. Is there an alternative that I could use to take advantage of 
my 8 cores with R?
 > Thanks
 > Marco
 > --
 > Marco Blanchette, Ph.D.
 > Assistant Investigator
 > Stowers Institute for Medical Research
 > 1000 East 50th St.
 > Kansas City, MO 64110
 > Tel: 816-926-4071
 > Cell: 816-726-8419
 > Fax: 816-926-2018
 > _______________________________________________
 > R-SIG-Mac mailing list
 > R-SIG-Mac at stat.math.ethz.ch
 > https://stat.ethz.ch/mailman/listinfo/r-sig-mac

Richard D Pearson                          richard.pearson at well.ox.ac.uk
Wellcome Trust Centre for Human Genetics   http://www.well.ox.ac.uk/~rpearson
University of Oxford                       Tel: +44 (0)1865 287500
Roosevelt Drive                            Mob: +44 (0)7971 221181
Oxford OX3 7BN, UK                         Fax: +44 (0)1865 287501

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