Note that you could have used the 'setthreadcount' implementation for this:
setthreadcount <:{:8T.''
However, I'm not sure that creating the maximum number of threads is
going to be the most efficient approach. (In some cases it might be.)
Also, I'm realizing that I should have included that decrement
operation in settheadcount. (It makes more sense to talk about the
total number of threads than the number of worker threads.)
Thanks,
--
Raul
On Wed, Dec 21, 2022 at 9:20 PM bill lam <bbill....@gmail.com> wrote:
>
> create thread pool:
> MAXTHREADS_z_=: {: 8 T.''
> echo 'MAXTHREADS: ',": MAXTHREADS
> 3 : 0''
> if. 1<MAXTHREADS do.
> 0&T."0^:(0 < #) 0$~ (1 >. (<:9!:56'cores') <. (<:MAXTHREADS)- 1 T. '')
> echo 'thread pool#0: ', ": n1=. 1 T. ''
> 0&T."0^:(0 < #) 1$~ (1 >. (<:MAXTHREADS)- 1 T. '')
> echo 'thread pool#1: ', ": (1 T. '') - n1
> end.
> )
>
> for cpu intensive tasks
> f1 t.(0;<'worker';1)"0 foo
>
> for i/o bound tasks
> g t.(1;<'worker';1)"0 bar
>
>
>
>
> On Thu, Dec 22, 2022 at 9:53 AM Ak O <akin...@gmail.com> wrote:
>
> > Hi Bill,
> >
> > How is a threadpool assigned?
> > For clarity, can you please show two sample commands?
> > The command that creates threads in threadpool 0.
> > The command that creates threads in threadpool 1.
> >
> > Thank you for your help.
> >
> > Ak
> >
> >
> >
> > >
> > ----------------------------------------------------------------------
> > For information about J forums see http://www.jsoftware.com/forums.htm
> >
> ----------------------------------------------------------------------
> For information about J forums see http://www.jsoftware.com/forums.htm
----------------------------------------------------------------------
For information about J forums see http://www.jsoftware.com/forums.htm
