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Re: libgomp: Make GCC 5 OpenACC offloading executables work

From: Nathan Sidwell <nathan at acm dot org>
To: Bernd Schmidt <bschmidt at redhat dot com>, Thomas Schwinge <thomas at codesourcery dot com>, Jakub Jelinek <jakub at redhat dot com>, gcc-patches at gcc dot gnu dot org
Date: Wed, 11 May 2016 11:38:39 -0400
Subject: Re: libgomp: Make GCC 5 OpenACC offloading executables work
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References: <55DC6DC2 dot 5030600 at acm dot org> <55FA89AF dot 2020403 at t-online dot de> <55FAD0D9 dot 1050205 at acm dot org> <55FBD59F dot 1060700 at redhat dot com> <20150924084034 dot GC1847 at tucnak dot redhat dot com> <56099751 dot 6000208 at acm dot org> <87bn54343j dot fsf at kepler dot schwinge dot homeip dot net> <87d1oswvuq dot fsf at hertz dot schwinge dot homeip dot net> <57334030 dot 2050807 at redhat dot com>

On 05/11/16 10:22, Bernd Schmidt wrote:

On 05/11/2016 03:46 PM, Thomas Schwinge wrote:

What we now got, doesn't work, for several reasons.  GCC 5 OpenACC
offloading executables will just run into SIGSEGV.


I'm tempted to say, let's just wait until someone actually reports that in
bugzilla. Offloading in gcc-5 was broken enough that I expect no one was
actually using it. There's really very little point in carrying compatibility
crud around.

I agree. This would simply be enabling a poorly performing binary, rather thanencouraging a shiny new one.



nathan

Follow-Ups:
- Re: libgomp: Make GCC 5 OpenACC offloading executables work
  - From: Thomas Schwinge

References:
- Re: libgomp: Make GCC 5 OpenACC offloading executables work
  - From: Thomas Schwinge
- Re: libgomp: Make GCC 5 OpenACC offloading executables work
  - From: Bernd Schmidt

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