[OpenACC 7/11] execution model

[Nathan Sidwell]

On 10/27/15 07:02, Nathan Sidwell wrote:

> yeah, I noticed diff got confused. (I'm  not sure the above suggestion will
> resolve it, but we can give it a go.

This is what I've committed.  This breaks the libgomp reduction tests on nvidia, 
because there's now a discrepancy between loop  iteration assignment and live 
threads of execution.  It'll get resolved in applying the ptx backend patch.


nathan

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