Re: [PATCH] Add fopt-info-oacc

[Sandra Loosemore]

On 01/18/2016 10:26 AM, Tom de Vries wrote:

Hi,

This patch introduces an option fopt-info-oacc.

When using the option like this with a kernels region in kernels-loop.c
that parloops does not manage to parallelize:
...
$ gcc kernels-loop.c -S -O2 -fopenacc -fopt-info-oacc-all
...

we get a message:
...
kernels-loop.c:23:9: note: kernels region executed sequentially.
Consider mapping it to host execution, to avoid data copy penalty.
...

Any comments?

Needs documentation?

-Sandra