cylc/cylc — pull request #891 by hjoliver (2014-02-18 13:23:46+00:00)
Title: Multi-processing process pools for job submission, event handlers, poll-and-kill 

This replaces batched parallel job execution in dedicated single threads with proper multiprocessing pools; addresses #596.

My test battery passes.

Not for merge just yet - a bit still to do:
* some tidying
* handle all exceptions properly, e.g. for every possible way a job submission can fail
* configurable pool sizes etc.; and obsoletion of the old batch config