Il giorno 27/gen/2015, alle ore 23:42, Ole Tange <o...@tange.dk> ha scritto:
> On Sun, Jan 25, 2015 at 3:58 PM, conahorse <conaho...@gmail.com> wrote: > >> Hi everyone, >> I'd like to have parallel lunch > > I like the idea of parallel lunch, mmmm food :-) > xD you could be right on this one, serendipity! >> at most N commands in parallel on my machine. >> I have a file where each line corresponds to a command, named >> commands.exp. >> What I do is simply this: >> >> paralle -j N < commands.exp >> >> (where N is 8, but nevermind) >> but I have is that on my netbook I seem to have the first 8 lines running in >> parallel, but on my other machine (having the same version of parallel and >> os, namely ubuntu 14.04 parallel@gnu.org), the first 8 lines get 8 processes >> each! Thus creating a huge bottleneck. >> What am I missing here? Why does parallel consider each line to be launched >> 8 times? > > Sounds like a bug. Follow > http://www.gnu.org/software/parallel/man.html#REPORTING-BUGS and file > a bug report. > Checking things better it seems like I was wrong in making parallel the responsible: running just one of those commands on those machines (without parallel) yields the same result, making 8 threads (not processes). I suspect this is due to some other interaction like a library, but I cannot recognize which one (how could I debug this?), I am simply using python and ipython with some line arguments. I know that this is not the place to talk about this anymore, so I apologize : ) Thanks again > > /Ole
