compute-runtime/documentation/LIMITATIONS.md

Intel(R) Graphics Compute Runtime for OpenCL(TM)

Known Issues and Limitations

OpenCL compliance of a driver built from open-source components should not be assumed by default. Intel will clearly designate / tag specific builds to indicate production quality including formal compliance. Other builds should be considered experimental.

Functional delta

The driver has the following functional delta compared to previously released drivers:

• Intel's closed source SRB5.0 driver (aka Classic) https://software.intel.com/en-us/articles/opencl-drivers#latest_linux_driver
• Intel's former open-source Beignet driver https://01.org/beignet

Preview extensions

• cl_intelx_video_enhancement
• cl_intelx_video_enhancement_camera_pipeline
• cl_intelx_video_enhancement_color_pipeline
• cl_intelx_hevc_pak

Currently no plan to implement. If interested in these features, please use SRB5 to evaluate and provide feedback.

Other capabilities

• OpenGL sharing with MESA driver - implementation is WIP (no comitted completion date)
• CL_MEM_SVM_FINE_GRAIN_BUFFER (if using unpatched i915) - patch is WIP
• Creation of OpenCL context spanning both CPU and GPU devices is currently not supported

External components

• Driver contains header used in Source Level Debugger from Intel SDK for OpenCL version - 7.0.0.2568x64, from: https://software.intel.com/en-us/intel-opencl , path to header in SDK: "include/"

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