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Re: [gomp4] force global locks for nvptx targets

From: Chung-Lin Tang <cltang at codesourcery dot com>
To: Cesar Philippidis <cesar at codesourcery dot com>, "gcc-patches at gcc dot gnu dot org" <gcc-patches at gcc dot gnu dot org>
Cc: Nathan Sidwell <nathan_sidwell at mentor dot com>
Date: Wed, 9 Sep 2015 16:06:52 +0800
Subject: Re: [gomp4] force global locks for nvptx targets
Authentication-results: sourceware.org; auth=none
References: <55EF3ED2 dot 9090104 at codesourcery dot com>

On 2015/9/9 04:02 AM, Cesar Philippidis wrote:
> This patch forces GOACC_LOCK to use locks in global memory regardless if
> the lock us for a worker or a gang. We were using a shared memory for
> worker locks, but we ran into an issue with that would sporadically
> involve deadlocks in worker reductions. We're still investigating that
> issue, but for the time being, global locks appear to work albeit with a
> lock contention penalty.
> 
> I've applied this patch to gomp-4_0-branch.
> 
> Cesar
> 

Fixed typo, committed as obvious.

Chung-Lin

2015-09-09  Chung-Lin Tang  <cltang@codesourcery.com>

        * config/nvptx/nvptx.c (nvptx_xform_lock): Correct typo
        of variable 'force_global_locks'.

Attachment: a.diff
Description: Text document

References:
- [gomp4] force global locks for nvptx targets
  - From: Cesar Philippidis

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