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

Introduction

The Intel(R) Graphics Compute Runtime for OpenCL(TM) is a open source project to converge Intel's development efforts on OpenCL(TM) compute stacks supporting the GEN graphics hardware architecture.

Please refer to http://01.org/compute-runtime for additional details regarding Intel's motivation and intentions wrt OpenCL support in the open source.

License

The Intel(R) Graphics Compute Runtime for OpenCL(TM) is distributed under the MIT.

You may obtain a copy of the License at:

https://opensource.org/licenses/MIT

Dependencies

GmmLib - https://github.com/intel/gmmlib
Intel Graphics Compiler - https://github.com/intel/intel-graphics-compiler
Google Test v1.7.0 - https://github.com/google/googletest
Google Mock v1.7.0 - https://github.com/google/googlemock
Khronos OpenCL Headers - https://github.com/KhronosGroup/OpenCL-Headers
LibDRM - https://anongit.freedesktop.org/git/mesa/drm.git

Building

1. Download all dependencies and create workspace folder as below:

	workspace
	  |- clang_source
	  |- common_clang
	  |- llvm_patches
	  |- llvm_source
	  |- gmmlib                 https://github.com/intel/gmmlib
	  |- gmock                  https://github.com/google/googlemock
	  |- gtest                  https://github.com/google/googletest
	  |- igc                    https://github.com/intel/intel-graphics-compiler
	  |- khronos                https://github.com/KhronosGroup/OpenCL-Headers
	  |- libdrm                 https://anongit.freedesktop.org/git/mesa/drm.git
	  |- neo                    https://github.com/intel/compute-runtime

2. In your workspace create folder where you will build. For example:

mkdir build

3. Build complete driver using commands:

cd build

cmake -DBUILD_TYPE=Release -DCMAKE_BUILD_TYPE=Release ../neo

make -j`nproc` package

Install

To install OpenCL driver please use deb package generated during build

Supported Platforms

Intel Core Processors supporting Gen8 graphics devices - OpenCL 2.0
Intel Core Processors supporting Gen9 graphics devices - OpenCL 2.1
Intel Atom Processors supporting Gen9 graphics devices - OpenCL 1.2

How to provide feedback

By default, please submit an issue using native github.com interface: https://github.com/intel/compute-runtime/issues.

How to contribute

Create a pull request on github.com with your patch. Make sure your change is cleanly building and passing ULTs. A maintainer will contact you if there are questions or concerns.

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.

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

Generic extensions

• cl_khr_mipmap
• cl_khr_mipmap_writes
• cl_khr_priority_hints
• cl_khr_throttle_hints
• cl_khr_fp64

Preview extensions

• cl_intelx_video_enhancement
• cl_intelx_video_enhancement_camera_pipeline
• cl_intelx_video_enhancement_color_pipeline
• cl_intelx_hevc_pak

Other capabilities

• OpenGL sharing with MESA driver
• CL_MEM_SVM_FINE_GRAIN_BUFFER (if using unpatched i915)

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