Hi,
by default, how many threads are used for the compute method? I thought
that Giraph would automatically use multiple threads by default, but then I
stumbled onto this log message:
2013-09-11 11:51:44,501 INFO org.apache.giraph.graph.GraphTaskManager:
execute: 6 partitions to process with 1
By default Giraph uses one compute thread for each worker. It uses multiple
threads for IO like Netty etc. The number of compute threads depends on the
number of workers per machine. Imagine you have a machine in your hadoop
cluster with 8 cores and 8 mapper tasks (something like the basic setup).
