njmulakk <[EMAIL PROTECTED]> writes: > I have a few questions regarding the snow package: > > 1) Is fine-grained parallelism even possible with R/snow? > > (ie, one task that spawns sub-tasks to do work, with results sent back to the > parent task). > > The example(s) only seem to be totally-independent processing (which can be > done just as easily > with shell-script wrappers....)
You can use the underlying tools (rpvm or Rmpi) to do it. I think sockets, as well, but that might take slightly more thought. > 2) If so, is an example available? Not readily packaged up. > 3. If not, then it is still worth messing with snow to see if you can get an R > program to skip through multiple directories, doing the independent processing > in each to avoid a potential race condition that could occur if multiple R > process one with one .RData file. Sure. Or just make sure to load/save to other places besides .RData. ?save will help on that. best, -tony -- A.J. Rossini [EMAIL PROTECTED] http://www.analytics.washington.edu/ Biomedical and Health Informatics University of Washington Biostatistics, SCHARP/HVTN Fred Hutchinson Cancer Research Center UW : FAX=206-543-3461 | moving soon to a permanent office FHCRC: 206-667-7025 FAX=206-667-4812 | Voicemail is pretty sketchy/use Email CONFIDENTIALITY NOTICE: This e-mail message and any attachme...{{dropped}} ______________________________________________ [EMAIL PROTECTED] mailing list https://www.stat.math.ethz.ch/mailman/listinfo/r-help
