On Tue, Nov 29, 2011 at 12:40, Barry Smith <bsmith at mcs.anl.gov> wrote:
> The very first google hit for "pause instruction spin loop" This is documentation for the first chip to use it. They are asserting that it does not cause illegal-opcode exceptions for prior chips, so it is valid to use unconditionally, even in software that needs to run on older chips. I think this is clear from context (certainly if you had been reading the documented instead of skipping to the end), but it could have been more explicit. -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.mcs.anl.gov/pipermail/petsc-dev/attachments/20111129/1a2a70ea/attachment.html>