From: "Dmitry A. Kazakov" <mailbox@dmitry-kazakov.de>
Subject: Re: Ada lacks lighterweight-than-task parallelism
Date: Sat, 30 Jun 2018 00:15:49 +0200
Date: 2018-06-30T00:15:49+02:00 [thread overview]
Message-ID: <ph6b2l$1cta$1@gioia.aioe.org> (raw)
In-Reply-To: ph6a8f$vue$1@franka.jacob-sparre.dk
On 2018-06-30 00:01, Randy Brukardt wrote:
> "Dmitry A. Kazakov" <mailbox@dmitry-kazakov.de> wrote in message
> news:pgdoip$1ntl$1@gioia.aioe.org...
> ...
>> How adding features like low-level parallelism makes compiler smaller?
>
> Nothing low-level about parallel loops. They're in fact a higher-level
> construct than an Ada task, since they're checked (by default) for safety
> problems and any tasking used is implicit.
That is not a definition of higher-level [abstraction] to me. Parallel
loop is a loop.
> "Parallel" is mainly a hint to
> the compiler that parallelism can be used (there's almost no case today
> where a compiler could automatically use parallel code, as there would be a
> substantial risk of that code being slower than sequential code would be).
Why does it need such hints?
--
Regards,
Dmitry A. Kazakov
http://www.dmitry-kazakov.de
next prev parent reply other threads:[~2018-06-29 22:15 UTC|newest]
Thread overview: 39+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-06-19 22:14 Ada lacks lighterweight-than-task parallelism Dan'l Miller
2018-06-19 22:23 ` Dan'l Miller
2018-06-20 0:03 ` Dan'l Miller
2018-06-20 0:41 ` Lucretia
2018-06-20 1:36 ` Dan'l Miller
2018-06-20 13:39 ` Luke A. Guest
2018-06-20 1:12 ` Shark8
2018-06-20 1:41 ` Dan'l Miller
2018-06-20 7:13 ` Dmitry A. Kazakov
2018-06-20 12:03 ` Dan'l Miller
2018-06-20 12:29 ` Dmitry A. Kazakov
2018-06-20 13:14 ` Mehdi Saada
2018-06-20 13:38 ` Dmitry A. Kazakov
2018-06-20 14:01 ` Mehdi Saada
2018-06-20 14:32 ` Dmitry A. Kazakov
2018-06-29 22:01 ` Randy Brukardt
2018-06-29 22:15 ` Dmitry A. Kazakov [this message]
2018-06-29 22:47 ` Randy Brukardt
2018-06-30 8:41 ` Dmitry A. Kazakov
2018-06-30 15:43 ` Brad Moore
2018-07-01 9:46 ` Dmitry A. Kazakov
2018-07-02 13:13 ` Marius Amado-Alves
2018-07-02 15:05 ` Dmitry A. Kazakov
2018-07-02 16:01 ` Marius Amado-Alves
2018-07-02 16:48 ` Dmitry A. Kazakov
2018-06-20 15:58 ` Niklas Holsti
2018-06-29 21:58 ` Randy Brukardt
2018-06-21 0:19 ` Shark8
2018-06-21 9:09 ` Dmitry A. Kazakov
2018-06-21 14:42 ` Shark8
2018-06-21 15:55 ` Dan'l Miller
2018-06-27 11:49 ` Marius Amado-Alves
2018-06-21 16:06 ` Dmitry A. Kazakov
2018-06-22 17:06 ` Shark8
2018-06-22 18:53 ` Dmitry A. Kazakov
2018-06-21 0:17 ` Shark8
2018-06-20 12:28 ` Brian Drummond
2018-06-21 1:51 ` Dan'l Miller
2018-06-21 10:22 ` Brian Drummond
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