Software at OSC |
MrBayesIntroductionMrBayes is a program for the Bayesian estimation of phylogeny. Bayesian inference of phylogeny is based upon a quantity called the posterior probability distribution of trees, which is the probability of a tree conditioned on the observations. The conditioning is accomplished using Bayes's theorem. The posterior probability distribution of trees is impossible to calculate analytically; instead, MrBayes uses a simulation technique called Markov chain Monte Carlo (or MCMC) to approximate the posterior probabilities of trees. VersionVersion 3.1.2 is currently available at OSC. AvailabilityMrBayes is available on the Glenn Cluster. UsageMrbayes is accessed by executing the following commands: module load biosoftw Below is a sample batch script for running serial mrbayes job. It asks for 1 processor and 30 minutes of walltime. #PBS -l walltime=30:00 cd $PBS_O_WORKDIR cd $TMPDIR module load mrbayes-3.1.2 cp * $PBS_O_WORKDIR date ---- Below is a sample batch script for running parallel job. It asks for 2 nodes, 8 processors and 30 minutes of walltime. #PBS -l walltime=30:00 cd $PBS_O_WORKDIR cd $TMPDIR module load mrbayes-3.1.2 pbsdcp -g '*' $PBS_O_WORKDIR date DocumentationUser manual is available at http://mrbayes.csit.fsu.edu/manual.php
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