callback on joblog

[Rob Sargent]

I would like to react to each job's completion. I need to accumulate the 
data from each run and decide whether or not it's worth while to 
continue with the remaining jobs. I don't think pipe is what I want, but 
maybe I'm misunderstanding that feature. Given that parallel is writing 
joblog (which I love,btw) I'm wondering if anything could be plugged in 
there?

Thanks,
rjs