https://community.intel.com/t5/OpenCL-for-CPU/Consistent-device-ordering-from-clGetDeviceIDs/m-p/985875#M2647 <P>Hi,</P> <P>&nbsp;</P> <P>When I run a basic OpenCL hello world on my Intel Core i7-3630QM CPU containing Intel HD Graphics 4000, I query and select the Intel platform, then query the devices and select the first device, and proceed. &nbsp;I just noticed this for the first time, but on some runs I get the CPU, and on others I get the GPU. &nbsp;Is that to be expected? &nbsp;What are the rules regarding this behavior, as I don't see it discussed in the OpenCL specification. &nbsp;I guess that devices may not be consistently ordered between application executions (as I'm witnessing), but I'm concerned that within an application if the order could change unexpectantly. &nbsp;Would someone please clarify this for me?</P> <P>&nbsp;</P> <P>Thanks!</P> Sun, 17 Nov 2013 06:46:49 GMT Sean_S_3 2013-11-17T06:46:49Z https://community.intel.com/t5/OpenCL-for-CPU/Consistent-device-ordering-from-clGetDeviceIDs/m-p/985875#M2647 <P>Hi,</P> <P>&nbsp;</P> <P>When I run a basic OpenCL hello world on my Intel Core i7-3630QM CPU containing Intel HD Graphics 4000, I query and select the Intel platform, then query the devices and select the first device, and proceed. &nbsp;I just noticed this for the first time, but on some runs I get the CPU, and on others I get the GPU. &nbsp;Is that to be expected? &nbsp;What are the rules regarding this behavior, as I don't see it discussed in the OpenCL specification. &nbsp;I guess that devices may not be consistently ordered between application executions (as I'm witnessing), but I'm concerned that within an application if the order could change unexpectantly. &nbsp;Would someone please clarify this for me?</P> <P>&nbsp;</P> <P>Thanks!</P> Sun, 17 Nov 2013 06:46:49 GMT https://community.intel.com/t5/OpenCL-for-CPU/Consistent-device-ordering-from-clGetDeviceIDs/m-p/985875#M2647 Sean_S_3 2013-11-17T06:46:49Z