Dynamically change number of jobslots

[Stuart Anderson]

Is it possible to signal a running parallel process to change the value of -P N 
?

Currently if I need to change that I use pkill -STOP parallel to stop any new 
jobs from starting and then kill/restart parallel with a new value, but it 
would nice to be able to do that without having to drain the queue (or losing 
stdout/stderr during draining).

P.S. This is fantastic tool, and I wish I had upgraded from xargs years ago!

Thanks.

--
Stuart Anderson
sba@caltech.edu