Hello, I have a fairly complex hierarchical model that I using rjags to fit. Short test runs verify that it works and everything appears to be setup correctly.
Now that I want to collect a larger sample from the posterior (5,000 or more). This looks like it will take several days to run on my hardware (Intel core i7, 16GB RAM) I read in the rjags documentation that there is an option for parallel chains. Since my cpu has 4 cores, it seems logical to run 4 chains in parallel, collection 1,250 samples each. Should provide a nice speedup. However, when calling rjags with the n.chains options set to 4, I don't see it actually doing anything in parallel. Watching a cpu monitor, I only see a single thread running on a single core. So clearly something isn't working correctly. Software versions: R 2.15.2 jags 3.2.0 Ubuntu 12.04 (64bit version) Can anyone suggest where I might look to get this running in parallel? Thanks -- Noah Silverman, M.S. UCLA Department of Statistics 8117 Math Sciences Building Los Angeles, CA 90095 ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
