clinfo failed to detect the integrated GPU

Discussion created by oxen on Dec 16, 2011
Latest reply on Dec 21, 2011 by nou

Somehow clinfo failed to detect the integrated GPU of the AMD A8-3850 APU. It only shows 1 OpenCL device, which is the CPU cores (CL_DEVICE_TYPE_CPU). Shouldn't it detect 2 devices, one for the CPU cores, and the other for the integrated GPU? Anyone has a similar experence? Any comments or advice is welcome! Thanks!

P.S. This is for a CPU/GPU hybrid computing project. We are interested in studying how the CPU and the GPU should schedule task together and share the bandwidth resource.  Right now we are just trying to setup the machine, and get some program running.

System info:
CPU: AMD A8-3850 Llano 2.9GHz with Radeon(tm) HD 6550D
Driver: Version 11.12. ati-driver-installer-11-12-x86.x86_64.run, Downloaded from the AMD website, selected Desktop -> A-Series APU -> A8-38xx APU -> Linux x86_64
OS: Ubuntu 11.10, x86_64
AMDAPP: OpenCL 1.1 AMD-APP-SDK-v2.5 (684.213)
Device OpenCL C version: OpenCL C 1.1