ContinuumIO/anaconda-ec2 — pull request #1 by applio (2012-09-06 22:55:55+00:00)
Title: Dynamic number of disco nodes on a single instance

... single machine (node in the cluster) based upon the number of processors observed on that machine (e.g. c1.medium would have 2 virtual cores and so an assignment of 2 disco nodes for that c1.medium instance is made).

Hi Ben -- I've tested this in two different configurations: a cluster of 2 instances of c1.medium (each instance gets 2 disco nodes for a total of 4), and a cluster of 2 instances of m1.small (each instance gets 1 disco node for a total of 2). I can provide more background on what I actually did to play with it in testing. Hope this helps, Davin