Just FYI, I tested giraph using same input data on 2 node cluster. Tests are not enough yet but Hama is slightly slow.
The main reason is that hama's graph job consists of two multi jobs:graph pre-partitioning and computing (I/O usage between jobs and launching overheads). If possible, I'll fix this issue before release 0.7. :) Thanks. -- Best Regards, Edward J. Yoon
