[Bug 108875] Invalid subgroupSize for Intel GPU

bugzilla-daemon at freedesktop.org bugzilla-daemon at freedesktop.org
Tue Nov 27 05:44:06 UTC 2018


            Bug ID: 108875
           Summary: Invalid subgroupSize for Intel GPU
           Product: Mesa
           Version: 18.2
          Hardware: x86-64 (AMD64)
                OS: Linux (All)
            Status: NEW
          Severity: normal
          Priority: medium
         Component: Drivers/Vulkan/intel
          Assignee: intel-3d-bugs at lists.freedesktop.org
          Reporter: frustumo at gmail.com
        QA Contact: intel-3d-bugs at lists.freedesktop.org
                CC: jason at jlekstrand.net

VkPhysicalDeviceSubgroupProperties reports subgroupSize equal to 32. But
actually subgroupSize value is 16.

Mesa 18.2.2 DRI Intel(R) Iris Pro Graphics 580 (Skylake GT4e)

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