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From: "folkert at vanheusden dot com" <gcc-bugzilla@gcc.gnu.org>
To: java-prs@gcc.gnu.org
Subject: [Bug java/58669] does not detect all cpu cores/threads
Date: Wed, 09 Oct 2013 16:36:00 -0000	[thread overview]
Message-ID: <bug-58669-8172-G4MsS0tDYK@http.gcc.gnu.org/bugzilla/> (raw)
In-Reply-To: <bug-58669-8172@http.gcc.gnu.org/bugzilla/>

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=58669

--- Comment #3 from Folkert van Heusden <folkert at vanheusden dot com> ---
Did some googling and with appropriate #ifdefs it should be at least on linux
possible to retrieve this value:

sysconf(_SC_NPROCESSORS_ONLN);

If that function can't figure it out, it will return '1' which is somewhat
sensible.

On
http://stackoverflow.com/questions/150355/programmatically-find-the-number-of-cores-on-a-machine
I found a whole list of implementations for windows, *bsd, macos, aix, well I
think all relevant platforms.
Also
http://stackoverflow.com/questions/4586405/get-number-of-cpus-in-linux-using-c
gives some ideas.

If there's any further help I can do; let me know.


  parent reply	other threads:[~2013-10-09 16:36 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-10-09 15:54 [Bug java/58669] New: " folkert at vanheusden dot com
2013-10-09 16:27 ` [Bug java/58669] " gnu_andrew at member dot fsf.org
2013-10-09 16:35 ` gnu_andrew at member dot fsf.org
2013-10-09 16:36 ` folkert at vanheusden dot com [this message]
2013-10-09 18:36 ` gnu_andrew at member dot fsf.org
2013-10-09 18:36 ` gnu_andrew at member dot fsf.org
2013-10-18  1:17 ` gnu_andrew at member dot fsf.org

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