Re: Question on optimizing GNU Parallel with multiple lines of search parameters

[Ole Tange]

On Wed, Aug 17, 2016 at 9:34 PM, Dave Florek <dave.a.flo...@gmail.com> wrote:

> <command>| parallel <command> | parallel <command> >> file
> <command>| parallel <command> | parallel <command> >> file
> <command> | parallel <command> >> file
> <command> | parallel <command> >> file

Put this into the file 'doit':

<command>| parallel <command> | parallel <command>
<command>| parallel <command> | parallel <command>
<command> | parallel <command>
<command> | parallel <command>

Then run:

cat doit | parallel -kj0 > file

That way you can run the 4 lines in parallel and make sure there is
not two programs writing to 'file' simultaneously (which may end up
mixing output).


/Ole