On Sun, Aug 11, 2013 at 12:28 AM, Linda Walsh <[email protected]> wrote:
> I was trying to gunzip a bunch of small files ;
> tried
>
> for i in *.gz;do
> sem -j6 $i
> done
You seem to have forgotten gunzip:
for i in *.gz;do
sem -j6 gunzip $i
done
This ought to work just fine.
Personally I hate introducing an unneeded variable, so I would write it as:
parallel gunzip ::: *gz
but your solution should work, too.
> so then tried putting the sem in background
That would be wrong and can explain why you get fork-failed later: It
needs to be able to block if 6 jobs are already running.
> If you get the error on smaller/fewer files, please include those instead.
> parallel: This should not happen. You have found a bug.
> Please contact <[email protected]> and include:
> * The version number: 20130122
> * The bugid: Can't open semaphore file
> /home/law/.parallel/semaphores/id-2fdev2fcons1.lock: Permission denied
Why is GNU Parallel not allowed to create
/home/law/.parallel/semaphores/id-2fdev2fcons1.lock?
This is explains what you see and is most likely the reason for the
failure you see.
Can you create the file by hand:
echo > /home/law/.parallel/semaphores/id-2fdev2fcons1.lock
What OS is Perl running on and what file system is /home/law/.parallel
hosted on?
/Ole
