From: Dan Winslow <dandwinslow@gmail.com>
Subject: Re: non-preemptive tasking on GNAT 2020 Windows 10 multicore AMD
Date: Sun, 13 Jun 2021 05:11:14 -0700 (PDT) [thread overview]
Message-ID: <6112f904-2ae8-46f6-8822-f1562ba7193en@googlegroups.com> (raw)
In-Reply-To: <sa4mcr$hk3$1@dont-email.me>
On Sunday, June 13, 2021 at 5:24:29 AM UTC-5, J-P. Rosen wrote:
> Le 13/06/2021 à 00:21, Dan Winslow a écrit :
> > So, I am puzzled. Nothing I do makes any different whatsoever in how the little test program runs.
> Hmmm... Scheduling matters only if you have less CPUs than tasks. If you
> have two tasks and more than two CPUs, the tasks will effectively run
> concurrently, and priorities have no effect.
>
> --
> J-P. Rosen
> Adalog
> 2 rue du Docteur Lombard, 92441 Issy-les-Moulineaux CEDEX
> Tel: +33 1 45 29 21 52
> https://www.adalog.fr
I know how multiprocessing works. I am using an Annex D facility that is supposed to set non-preemptive, and both tasks are on the same core (assuming THAT works on windows). One task should monopolize, then the next, and then main terminate.
next prev parent reply other threads:[~2021-06-13 12:11 UTC|newest]
Thread overview: 32+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-06-12 12:51 non-preemptive tasking on GNAT 2020 Windows 10 multicore AMD Dan Winslow
2021-06-12 13:11 ` Dmitry A. Kazakov
2021-06-12 15:43 ` AdaMagica
2021-06-12 15:57 ` Dmitry A. Kazakov
2021-06-12 16:05 ` AdaMagica
2021-06-12 16:30 ` Dmitry A. Kazakov
2021-06-12 20:56 ` Dan Winslow
2021-06-12 22:21 ` Dan Winslow
2021-06-13 1:24 ` Dennis Lee Bieber
2021-06-13 1:55 ` Dennis Lee Bieber
2021-06-13 10:24 ` J-P. Rosen
2021-06-13 12:11 ` Dan Winslow [this message]
2021-06-13 6:20 ` Randy Brukardt
2021-06-13 8:04 ` darek
2021-06-13 9:13 ` Dmitry A. Kazakov
2021-06-13 21:43 ` darek
2021-06-13 12:06 ` Dan Winslow
2021-06-13 13:16 ` Jeffrey R. Carter
2021-06-13 16:43 ` Dan Winslow
2021-06-13 16:46 ` Dan Winslow
2021-06-13 16:50 ` Dan Winslow
2021-06-13 17:44 ` Jeffrey R. Carter
2021-06-15 0:41 ` Dan Winslow
2021-06-16 0:10 ` Dennis Lee Bieber
2021-06-14 2:09 ` Dennis Lee Bieber
2021-06-12 16:03 ` AdaMagica
2021-06-12 18:02 ` Niklas Holsti
2021-06-12 20:50 ` Dan Winslow
2021-06-13 17:41 ` AdaMagica
2021-06-12 17:18 ` Dan Winslow
2021-06-12 17:21 ` Dan Winslow
2021-06-12 18:06 ` Dennis Lee Bieber
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