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()
{
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]> 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]>> 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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>
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