[Rd] experinental revision of the 'snow' package
schmidb at ibe.med.uni-muenchen.de
Fri Jul 18 14:23:46 CEST 2008
at our windows cluster everything is working very well. We have 8 nodes,
WindowsServer2003 and mpich2 (1.0.7).
Attached a small testcode and sessionInfo()
I did some bigger tests using my "afyPara" package. There were no problems.
There was an other discussion at the Rd list. Giuseppe confirmed, that
DeinoMPI & Rmpi & the new version of snow is working very well.
See you in Seattle at the BioC2008 or Developer Day? I will fly to
3 slaves are spawned successfully. 0 failed.
> clusterEvalQ(c1, Sys.info()["nodename"])
R version 2.7.1 (2008-06-23)
attached base packages:
 stats graphics grDevices utils datasets methods base
other attached packages:
 snow_0.3-3 Rmpi_0.5-5
Luke Tierney schrieb:
> Did you have a chance to check this on your WIndows setup?
> On Mon, 7 Jul 2008, Markus Schmidberger wrote:
>> Hello Luke,
>> I did several test with our affyPara Testcode. Everything was working
>> very well. I think you improved error-handling?
>> It would be great to have a kind of change log in the package. To
>> know the latest changes.
>> Our system:
>> Linux, Suse, max. 120 nodes, LAM/MPI: 7.1.3
>> R version 2.7.1 (2008-06-23)
>> attached base packages:
>>  tools stats graphics grDevices utils datasets
>> methods  base other attached packages:
>>  hgu95acdf_2.2.0 Rmpi_0.5-6 affyPara_1.1.5 
>> snow_0.3-3 affy_1.18.2 preprocessCore_1.2.0
>>  affyio_1.8.0 Biobase_2.0.1
>> Best regards form Munich
>> Luke Tierney schrieb:
>>> A new version of the 'snow' package for parallel computing in R is
>>> available at
>>> 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 Windows and Linux; the
>>> MPI version also works for me with DeinoMPI and the Rmpi verision for
>>> I would welcome it if some current snow users could try this verison
>>> in their settings to help iron out any major issues I missed before
>>> release to CRAN.
Dipl.-Tech. Math. Markus Schmidberger
IBE - Institut für medizinische Informationsverarbeitung,
Biometrie und Epidemiologie
Marchioninistr. 15, D-81377 Muenchen
Mail: Markus.Schmidberger [at] ibe.med.uni-muenchen.de
Tel: +49 (089) 7095 - 4599
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