Parallel Computing of varSelRF and tuneRF
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Min Wang ▴ 20
@min-wang-3907
Last seen 10.3 years ago
Did anybody here do parallel computing of varSelRF function of varSelRF package and tuneRF function of randomForest in a multi-core computer or a cluster of nodes? I greatly appreciate if you can give me some suggestions. -Min [[alternative HTML version deleted]]
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@sean-davis-490
Last seen 4 months ago
United States
On Thu, Aug 26, 2010 at 1:38 PM, Min Wang <min.wang@oncomed.com> wrote: > Did anybody here do parallel computing of varSelRF function of varSelRF > package and tuneRF function of randomForest in a multi-core computer or a > cluster of nodes? I greatly appreciate if you can give me some suggestions. > Not sure about varSelRF(?), but for tuneRF, it looks like you could simply specify a bunch of mtry values and run each one on a different core using any parallel computing paradigm (snow, foreach, etc.) and then capture the OOB error for each. Sean [[alternative HTML version deleted]]
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On Thu, Aug 26, 2010 at 1:46 PM, Sean Davis <sdavis2@mail.nih.gov> wrote: > > > On Thu, Aug 26, 2010 at 1:38 PM, Min Wang <min.wang@oncomed.com> wrote: > >> Did anybody here do parallel computing of varSelRF function of varSelRF >> package and tuneRF function of randomForest in a multi-core computer or a >> cluster of nodes? I greatly appreciate if you can give me some suggestions. >> > > Not sure about varSelRF(?), but for tuneRF, it looks like you could simply > specify a bunch of mtry values and run each one on a different core using > any parallel computing paradigm (snow, foreach, etc.) and then capture the > OOB error for each. > > Note that this will not do the "optimization" steps that tuneRF will do, but searching the mtry space will still be accomplished. Sean [[alternative HTML version deleted]]
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Ramon Diaz ★ 1.1k
@ramon-diaz-159
Last seen 10.3 years ago
Dear Min, (I was on vacation, and thus the delay). You are asking about different packages and functions. Regarding the varSelRF package, some of the functions are parallelized, as documented in the help. See, for instance, varSelRFBoot, and its arguments "usingCluster" and "TheCluster". Best, R. On Thursday 26 August 2010 19:38:40 Min Wang wrote: > Did anybody here do parallel computing of varSelRF function of varSelRF > package and tuneRF function of randomForest in a multi-core computer or a > cluster of nodes? I greatly appreciate if you can give me some > suggestions. -Min > > [[alternative HTML version deleted]] > > _______________________________________________ > Bioconductor mailing list > Bioconductor at stat.math.ethz.ch > https://stat.ethz.ch/mailman/listinfo/bioconductor > Search the archives: > http://news.gmane.org/gmane.science.biology.informatics.conductor -- Ramon Diaz-Uriarte Structural Biology and Biocomputing Programme Spanish National Cancer Centre (CNIO) http://ligarto.org/rdiaz Phone: +34-91-732-8000 ext. 3019 Fax: +-34-91-224-6972 **NOTA DE CONFIDENCIALIDAD** Este correo electr?nico, y ...{{dropped:3}}
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