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Responding to yesterday's post which included an aside on using parallel processing for by-group computations in R, reader Christian Gunning mused about the possibility of using doSNOW on his network, with OpenSSH to manage the authentication:
I sit on a fast campus network and have at least 10 remote cores available that I could farm out for big jobs. the SSHcluster method would require minimal invasion on those machines — just ability to execute ssh and Rscript on the remote machines — not even login privileges are required!
Well, Christian developed that idea into a step-by-step guide for setting up a multi-node cluster for parallel programming using foreach and doSNOW. Check out the full guide (including both R and shell configuration code) at the link below.
Life In Code: snow and ssh — secure inter-machine parallelism with R
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