Hi Charles,
> Sorry to continue this thread but I am very confused as I am trying to
> add the public method you have suggested. I thought the following
> simple function would be sufficient in the backend.hpp file.
>
> /** @brief Returns the current context index */
> long current_context_id()
please add the 'static' keyword before 'long'. This should render
viennacl::ocl::backend<>::current_context_id()
valid.
Best regards,
Karli
> {
> return current_context_id_;
> }
>
> However, I am unable to call this function. I have tried:
>
> long context_id = viennacl::ocl::backend<false>::current_context_id();
>
> but I just get an error:
>
> error: cannot call member function ‘long int
> viennacl::ocl::backend<dummy>::current_context_id() [with bool dummy =
> false]’ without object
>
> Have I missed something with the structure of these files that is
> preventing this from working?
>
> Regards,
> Charles
>
> On Fri, Jan 29, 2016 at 2:04 PM, Karl Rupp <[email protected]
> <mailto:[email protected]>> wrote:
>
> Hi Charles,
>
> sorry for the late response. Currently there is no way of getting
> the internal index. You can, however, edit viennacl/ocl/backend.hpp
> and add a public member function in viennacl::ocl::backend returning
> the index.
>
> Best regards,
> Karli
>
>
>
> On 01/29/2016 04:00 PM, Charles Determan wrote:
>
> While trying to figure out the device index I thought the following
> would work:
>
> viennacl::ocl::current_context().current_device_id_
>
> but apparently the `current_device_id_` is private (which didn't
> appear
> to be the case in the context.hpp file). Perhaps a simple
> method for
> its' accession? If this functionality doesn't exist I can
> likely write
> this.
>
> I still have made no headway on the context index.
>
> Regards,
> Charles
>
> On Thu, Jan 28, 2016 at 1:30 PM, Charles Determan
> <[email protected] <mailto:[email protected]>
> <mailto:[email protected] <mailto:[email protected]>>>
> wrote:
>
> A user can switch contexts easily with
>
> long id = 1;
> viennacl::ocl::switch_context(id);
>
> Is there a way to determine the current context index? In
> this case
> it would return 1?
>
> The corollary for platform is:
>
> viennacl::ocl::current_context().platform_index()
>
>
> I also don't see a method for device_index() either. But it is
> possible I am simply overlooking this somewhere in the
> documentation.
>
> Regards,
> Charles
>
>
>
>
>
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