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Re: [gomp-nvptx 2/9] nvptx backend: new "uniform SIMT" codegen variant
- From: Alexander Monakov <amonakov at ispras dot ru>
- To: Jakub Jelinek <jakub at redhat dot com>
- Cc: Nathan Sidwell <nathan at acm dot org>, gcc-patches at gcc dot gnu dot org, Bernd Schmidt <bschmidt at redhat dot com>, Dmitry Melnik <dm at ispras dot ru>, Thomas Schwinge <thomas at codesourcery dot com>
- Date: Wed, 2 Dec 2015 17:34:38 +0300 (MSK)
- Subject: Re: [gomp-nvptx 2/9] nvptx backend: new "uniform SIMT" codegen variant
- Authentication-results: sourceware.org; auth=none
- References: <1448983707-18854-1-git-send-email-amonakov at ispras dot ru> <1448983707-18854-3-git-send-email-amonakov at ispras dot ru> <20151202104034 dot GG5675 at tucnak dot redhat dot com> <565EEBF7 dot 8070105 at acm dot org> <20151202131013 dot GL5675 at tucnak dot redhat dot com> <565EF470 dot 3050400 at acm dot org> <20151202134602 dot GN5675 at tucnak dot redhat dot com> <565EFCAB dot 1080902 at acm dot org> <20151202142200 dot GQ5675 at tucnak dot redhat dot com> <565EFECF dot 6040803 at acm dot org> <20151202142446 dot GR5675 at tucnak dot redhat dot com>
On Wed, 2 Dec 2015, Jakub Jelinek wrote:
> On Wed, Dec 02, 2015 at 09:23:11AM -0500, Nathan Sidwell wrote:
> > On 12/02/15 09:22, Jakub Jelinek wrote:
> >
> > >I believe Alex' testing revealed that if you take address of the same .local
> > >objects in several threads, the addresses are the same, and therefore you
> > >refer to your own .local space rather than the other thread's.
> >
> > Before or after applying cvta?
>
> I'll let Alex answer that.
Both before and after, see this email:
https://gcc.gnu.org/ml/gcc-patches/2015-10/msg02081.html
Alexander