https://community.intel.com/t5/OpenCL-for-CPU/opencl-working/m-p/824949#M1167 Hello Shweta Shree,<BR /><BR />This is made possible by the OpenCL ICD. It is documented at: <A href="http://www.khronos.org/registry/cl/extensions/khr/cl_khr_icd.txt">http://www.khronos.org/registry/cl/extensions/khr/cl_khr_icd.txt</A>, here's a quote:<BR /><BR /><BR /><PRE> <I> This extension defines a simple mechanism through which the Khronos installable client driver loader (ICD Loader) may expose multiple separate vendor installable client drivers (Vendor ICDs) for OpenCL. An application written against the ICD Loader will be able to access all cl_platform_ids exposed by all vendor implementations with the ICD Loader acting as a demultiplexor.</I></PRE><BR /><BR />You can read more details in the linked page and by googling "opencl icd".<BR /><BR />Eli<BR /> Thu, 22 Sep 2011 12:53:22 GMT Eli_Bendersky__Intel 2011-09-22T12:53:22Z https://community.intel.com/t5/OpenCL-for-CPU/opencl-working/m-p/824948#M1166 Can anyone please explain to me how a system handles 2 implementations of opencl.<BR />(For example: intel and nvidia implementations).<BR /><BR />How appropriate backend compilers are used in the function clProgramBuild()? Thu, 22 Sep 2011 12:16:06 GMT https://community.intel.com/t5/OpenCL-for-CPU/opencl-working/m-p/824948#M1166 Shweta_Shree 2011-09-22T12:16:06Z https://community.intel.com/t5/OpenCL-for-CPU/opencl-working/m-p/824949#M1167 Hello Shweta Shree,<BR /><BR />This is made possible by the OpenCL ICD. It is documented at: <A href="http://www.khronos.org/registry/cl/extensions/khr/cl_khr_icd.txt">http://www.khronos.org/registry/cl/extensions/khr/cl_khr_icd.txt</A>, here's a quote:<BR /><BR /><BR /><PRE> <I> This extension defines a simple mechanism through which the Khronos installable client driver loader (ICD Loader) may expose multiple separate vendor installable client drivers (Vendor ICDs) for OpenCL. An application written against the ICD Loader will be able to access all cl_platform_ids exposed by all vendor implementations with the ICD Loader acting as a demultiplexor.</I></PRE><BR /><BR />You can read more details in the linked page and by googling "opencl icd".<BR /><BR />Eli<BR /> Thu, 22 Sep 2011 12:53:22 GMT https://community.intel.com/t5/OpenCL-for-CPU/opencl-working/m-p/824949#M1167 Eli_Bendersky__Intel 2011-09-22T12:53:22Z