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Dear list, My institution has a Beowulf Linux cluster with 128 nodes. I want to set up a parallel environment for R so that I can run some easily parallelizable jobs. I searched around and only found some packages (like snow, rpvm) with tutorials on how to run R functions in a already-setup parallel environment. But did not have success finding tutorials on how to setup parallel R. Should I

I cannot join my WinXP workstation computers to the Samba domain. Using the Computer Name / Change on the XP computer gives me an error saying that the username or password is incorrect - except very occasionally when it works although I do nothing different! I have noticed that on when it works there is a machine record set up in LDAP with Samba data as follows:- dn:

Hello, My Question: ------------ How can one have the equivalent of "before_filter" checking (e.g. to require a user to be logged in before carrying out an action) on a method when the method is called implicitly inside another action (the before_filter doesn''t seem to get run)? Background: ------------ So in this instance I have a restful controller that allows users to