On Tue, 23 Mar 2004, Ross Boylan wrote: > There are a few points I found unclear or unmentioned in the snow > documentation (mostly I looked at the cluster.html web page). I thought > I'd mention them here. > > What is the start up environment for the children? > -------------------------------------------------- > My best guess at the answer is in parentheses > Do they inherit shell variables? (no) > Do they inherit variables set in R or other aspects of the R > environment? (no) > What directory does it start in? (the directory you are running in) > What user are you? (same as original) > > I realize some of these answers might depend on the parallelization > layer you are using, or whether you select the homogenous option.
They do > Number of nodes or number of children? > -------------------------------------- > I thought all the counts of nodes (e.g., in makeCluster(5)) were of the > total nodes in the cluster, i.e., children + 1. However, I did a > makeCluster(2) and I got 2 additional R processes running. Have I > misunderstood the semantics, or is it essentially an implementation > detail that the master node starts a new R process? makeCluster(2) creates a cluster of two processes that the master process uses. So there are a total of three processes. luke -- Luke Tierney University of Iowa Phone: 319-335-3386 Department of Statistics and Fax: 319-335-3017 Actuarial Science 241 Schaeffer Hall email: [EMAIL PROTECTED] Iowa City, IA 52242 WWW: http://www.stat.uiowa.edu ______________________________________________ [EMAIL PROTECTED] mailing list https://www.stat.math.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html
