Re: Warning: Starting 10 extra processes takes > 2 sec.

[Aaron Paetznick]

I've installed the latest version from git, and it is working much 
better for me now.  I'm requesting six processes and that's what I'm 
getting.  Thanks so much for the quick response!

By the way I loved the "tail -f" and inotifywait examples you posted 
previously.  I would love to see a "cookbook" or user-contributed 
examples of "stupid parallel tricks".  Clever recipes people have come 
up with for using parallel IRL.  maybe a little off topic for the bugs 
list, but I thought I'd mention it.


--Aaron



On 10/14/2010 04:16 PM, Ole Tange wrote:
> On Thu, Oct 14, 2010 at 3:52 PM, Aaron Paetznick<address@hidden>  wrote:
> > I keep getting the following warning when using parallel:
> >
> > Warning: Starting 10 extra processes takes>  2 sec.
> > Limiting to 1 jobs in parallel.
> >
> > This is on an NFS server that is busy compressing tar archives all day.  I
> > appreciate that parallel is trying to protect me from myself, but I feel
> > like I should be able to force the number of processes and/or bypass this
> > warning if I need to.
>
> I have given it some thought: The UNIX philosophy is that if you point
> a gun at your foot and pull the trigger, UNIX will not ask you "Are
> you sure?" or "Really?". Neither will UNIX refuse to do so. No, UNIX
> will do its best to shoot your foot clean off.
>
> So with that in mind the current behaviour is not wanted. I believe it
> is OK to warn that this may cause problems, but GNU Parallel should go
> ahead and do what it was told to do.
>
> So the current git version of GNU Parallel will give you a warning
> with advice of adjusting -j and pressing Ctrl-C to stop, but it will
> continue instead of stopping. That should deal with your problem.
>
>
> /Ole