From: Erotavlas_turbo@libero.it
To: "gcc" <gcc@gcc.gnu.org>
Subject: Re: GCC: OpenMP posix pthread
Date: Sun, 19 Feb 2012 15:24:00 -0000 [thread overview]
Message-ID: <LZNASV$3D754D66DBA2CDA07C9A75354BFA4659@libero.it> (raw)
> On 2/19/2012 9:42 AM, Erotavlas_turbo@libero.it wrote:
>
> > I'm starting to use Helgrind a tool of Valgrind. I read on the manual the following statement:
> > Runtime support library for GNU OpenMP (part of GCC), at least for GCC versions 4.2 and 4.3. The GNU OpenMP runtime library (libgomp.so) constructs its own synchronisation primitives using combinations of atomic memory instructions and the futex syscall, which causes total chaos since in Helgrind since it cannot "see" those.
> >
> > In the latest version of GCC, is this still true or now the OpenMP uses the standard POSIX pthread?
> >
>
> Do you have a specific OS family in mind?
>
>
> --
> Tim Prince
>
Yes, I'm talking about the UNIX OS (Linux, MacOSx). The tool valgrind is only available for these systems.
Salvatore Frandina
next reply other threads:[~2012-02-19 13:53 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-02-19 15:24 Erotavlas_turbo [this message]
-- strict thread matches above, loose matches on Subject: below --
2012-03-02 20:45 Erotavlas_turbo
2012-02-22 23:43 Erotavlas_turbo
2012-02-21 15:19 Erotavlas_turbo
2012-02-21 20:16 ` Jakub Jelinek
2012-02-19 13:43 Erotavlas_turbo
2012-02-19 13:53 ` Tim Prince
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to='LZNASV$3D754D66DBA2CDA07C9A75354BFA4659@libero.it' \
--to=erotavlas_turbo@libero.it \
--cc=gcc@gcc.gnu.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).