4 Replies Latest reply on Mar 6, 2017 4:54 PM by Intel Corporation

    OpenCL support for Intel Iris Graphics 6100 (5th Gen)?

    jubilatious1

      Hi, I'm trying to find information on OpenCL support for Intel Iris Graphics 6100 (5th Generation Intel® Core™ Processors).

      According to Apple, this chipset/GPU supports OpenCL 1.2:

      https://support.apple.com/en-us/HT202823

       

      However, it appears that there's a problem with OpenCL implementation on Intel Iris Graphics 6100,

      As judged by recent performance testing (MacWorld graphic below, 2015 model MBP):

      macbook_pro_late2016_benchmarks_opencl-100692189-orig.jpg

      13-inch MacBook Pro review: Too many tradeoffs | Macworld

       

      There is Intel data saying that 5th Generation Intel® Core™ Processors can support up to to OpenCL 2.0:

      http://www.intel.com/content/www/us/en/support/graphics-drivers/graphics-for-5th-generation-intel-processors/intel-iris-graphics-6100.html

       

      However in one implementation (Github issue), there seems to be an issue with the lack of floating point support ("cl_khr_fp64" extension):

      https://github.com/cdeterman/gpuR/issues/11

       

      Whether this is a deficiency in the chip, or an intervening software layer (e.g. ViennaCL), I cannot say:

      http://viennacl.sourceforge.net

       

      Any discussion or assistance appreciated!

       

      Message was edited by: William Michels