If you want to take a look at scaling page rank on commodity clusters with R, you should take a look at the newly released SparkR (http://amplab-extras.github.i

If you want to take a look at scaling page rank on commodity clusters with R, you should take a look at the newly released SparkR (http://amplab-extras.github.io/SparkR-pkg/ http://amplab-extras.github.io/SparkR-pkg/) and possibly just call into GraphX (https://github.com/amplab/graphx https://github.com/amplab/graphx).