Samuel, this is true for device part of codegen. But what about host? If
this code must be executed on host, will it be handled correctly?
Best regards,
Alexey Bataev
=============
Software Engineer
Intel Compiler Team
18.03.2016 23:03, Samuel Antao пишет:
> sfantao added a comment.
>
> Hi Alexey,
>
> I am sorry but I don't think I am following. So in your example:
>
> #pragma omp target map(to: this->A)
> []()->void {++A}();
>
> the map clause is going to make sure the runtime library allocates the
> section of `this` that contains A and that is what is used in the device.
> There are no new instances of A created inside the kernel. If you do:
>
> #pragma omp target
> []()->void {++A}();
>
> what the lambda is going to get would be the same (except that runtime had
> eventually to copy more data to the device), so the map clause has no effect
> in how captures are dealt with inside. All the map clause does is to inform
> the runtime about sizes and addresses and change the captures to byCopy when
> necessary, it does not create new instances of data inside the kernel. Maybe
> what you are proposing is meant for (first)private?
>
> Thanks,
> Samuel
>
>
> http://reviews.llvm.org/D16749
>
>
>
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