Yes, this is a recurring subject but I did not get a reply on the forum...
My config :
- APU : A8-3870K (with the latest driver )
- Ubuntu : 11.04
- AMD APP SDK: 2.6
My questions :
1 - When i run clinfo, i get (inter alia):
Name : AMD A8-3870 APU with Radeon HD Graphic
Max compute units : 4
Max clock frequency : 3000MHz (and sometime 800Mhz)
Well, he found my APU as a device. But he saw only 4 cores, which corresponds to the CPU part of the APU. Is it a normal behavior ? What about the GPU part ?
Another thing, sometime i have max clock frequency at 3Ghz and sometime at 800MHz. So, i guess that he switch (randomly ?) on the GPU part...
2 - I'm trying to launch a kernel only on the GPU part of the APU. So, i just give the APU's deviceId when i create my context. It works, but i don't know if i really use the GPU part... Is it enough or there is a special trick for do that ? Maybe with "clCreatSubDevices" ?
3 - Is that my questions have meaning ? Is it possible to work only on the GPU part of the APU ?
Thanks in advance for your help,