https://community.intel.com/t5/OpenCL-for-CPU/Processing-Elements-in-Intel-CPU-and-HD-Graphics/m-p/944299#M1862 <P>An OpenCL workgroup executes on a single compute unit. On HD graphics a workgroup is executed on multiple EU threads. So you can safely assume PEs map to the SIMD channels.</P> <P>Thanks,<BR />Raghu</P> Wed, 21 Aug 2013 21:18:39 GMT Raghupathi_M_Intel 2013-08-21T21:18:39Z https://community.intel.com/t5/OpenCL-for-CPU/Processing-Elements-in-Intel-CPU-and-HD-Graphics/m-p/944298#M1861 <P>In OpenCL platform model, there are terms like OpenCL Device, Compute Unit and Processing Element. For CPU the a Compute Unit is a CPU Hyper Thread and for HD Graphics Compute Unit is mapping to Execute Unit. So to what does Processing Element is mapping on CPU and HD Graphics? And on what does an OpenCL thread (work item) run on CPU and GPU?&nbsp;</P> <P>Thanks</P> Tue, 09 Jul 2013 06:38:37 GMT https://community.intel.com/t5/OpenCL-for-CPU/Processing-Elements-in-Intel-CPU-and-HD-Graphics/m-p/944298#M1861 cheng_z_Intel 2013-07-09T06:38:37Z https://community.intel.com/t5/OpenCL-for-CPU/Processing-Elements-in-Intel-CPU-and-HD-Graphics/m-p/944299#M1862 <P>An OpenCL workgroup executes on a single compute unit. On HD graphics a workgroup is executed on multiple EU threads. So you can safely assume PEs map to the SIMD channels.</P> <P>Thanks,<BR />Raghu</P> Wed, 21 Aug 2013 21:18:39 GMT https://community.intel.com/t5/OpenCL-for-CPU/Processing-Elements-in-Intel-CPU-and-HD-Graphics/m-p/944299#M1862 Raghupathi_M_Intel 2013-08-21T21:18:39Z