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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">Hi Andrew,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">We do not have this extension right now, but I am working on this extension now, please keep an eye on this mail list for patches.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">Thanks<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">Xiuli<o:p></o:p></span></p>
<p class="MsoNormal"><a name="_MailEndCompose"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"><o:p> </o:p></span></a></p>
<p class="MsoNormal"><a name="_____replyseparator"></a><b><span style="font-size:11.0pt;font-family:"Calibri",sans-serif">From:</span></b><span style="font-size:11.0pt;font-family:"Calibri",sans-serif"> Beignet [mailto:beignet-bounces@lists.freedesktop.org]
<b>On Behalf Of </b>Andrew Lavin<br>
<b>Sent:</b> Tuesday, May 17, 2016 12:00 PM<br>
<b>To:</b> Beignet <beignet@lists.freedesktop.org><br>
<b>Subject:</b> [Beignet] cl_intel_subgroups support<o:p></o:p></span></p>
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<p class="MsoNormal">It appears that master does not implement the cl_intel_subgroups extension, at least for Skylake Halo GT4.<o:p></o:p></p>
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<p class="MsoNormal">In particular I need the intel_sub_group_block_read* instructions, which are used in the "SGEMM for Intel Processor Graphics" code sample here:<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal"><a href="https://software.intel.com/en-us/articles/sgemm-for-intel-processor-graphics">https://software.intel.com/en-us/articles/sgemm-for-intel-processor-graphics</a><o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">The sample runs fine on a Gen 8 GPU using the Intel opencl sdk.<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal"><span style="font-family:"Courier New"">andrew@skull:~/Downloads/beignet-master/build/utests$ ./utest_run </span><o:p></o:p></p>
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<p class="MsoNormal"><span style="font-family:"Courier New"">platform number 1</span><o:p></o:p></p>
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<p class="MsoNormal"><span style="font-family:"Courier New"">platform_profile "FULL_PROFILE"</span><o:p></o:p></p>
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<p class="MsoNormal"><span style="font-family:"Courier New"">platform_name "Intel Gen OCL Driver"</span><o:p></o:p></p>
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<p class="MsoNormal"><span style="font-family:"Courier New"">platform_vendor "Intel"</span><o:p></o:p></p>
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<p class="MsoNormal"><span style="font-family:"Courier New"">platform_version "OpenCL 1.2 beignet 1.2 (git-722b49c)"</span><o:p></o:p></p>
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<p class="MsoNormal"><span style="font-family:"Courier New"">platform_extensions "cl_khr_global_int32_base_atomics cl_khr_global_int32_extended_atomics cl_khr_local_int32_base_atomics cl_khr_local_int32_extended_atomics cl_khr_byte_addressable_store cl_khr_image2d_from_buffer
cl_khr_spir cl_khr_icd cl_intel_accelerator cl_intel_motion_estimation"</span><o:p></o:p></p>
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<p class="MsoNormal"><span style="font-family:"Courier New"">device_profile "FULL_PROFILE"</span><o:p></o:p></p>
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<p class="MsoNormal"><span style="font-family:"Courier New"">device_name "Intel(R) HD Graphics Skylake Halo GT4"</span><o:p></o:p></p>
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<p class="MsoNormal"><span style="font-family:"Courier New"">device_vendor "Intel"</span><o:p></o:p></p>
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<p class="MsoNormal"><span style="font-family:"Courier New"">device_version "OpenCL 1.2 beignet 1.2 (git-722b49c)"</span><o:p></o:p></p>
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<p class="MsoNormal"><span style="font-family:"Courier New"">device_extensions "cl_khr_global_int32_base_atomics cl_khr_global_int32_extended_atomics cl_khr_local_int32_base_atomics cl_khr_local_int32_extended_atomics cl_khr_byte_addressable_store cl_khr_image2d_from_buffer
cl_khr_spir cl_khr_icd cl_intel_accelerator cl_intel_motion_estimation cl_khr_fp16"</span><o:p></o:p></p>
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<p class="MsoNormal"><span style="font-family:"Courier New"">device_opencl_c_version "OpenCL C 1.2 beignet 1.2 (git-722b49c)"</span><o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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