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FAQ.md

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Frequently asked questions

For OpenCL specific questions, see the OpenCL FAQ.

OS support

Which Linux versions does NEO support?

NEO should work on any modern Linux distribution (i.e. Ubuntu, Fedora, etc.) with default / stock configuration (no kernel patches), assuming the underlying kernel's drm subsystem is 4.7 or higher. Newer platforms will require a kernel version that provides support for that platform (e.g. Coffee Lake requires kernel 4.14 or higher).

Our default (most frequent) validation config is currently Ubuntu 20.04 LTS (as of Q1'21).

Does NEO support Microsoft Windows?

Our closed-source driver for Windows is using the same codebase. At this time, we do not support compilation of the stack for Windows. It is our long-term intention to offer that option.

Does NEO support Windows Subsystem for Linux (WSL)?

See WSL.md.

Why is the feature set different in latest Windows driver vs. latest NEO on github?

Our Windows release process takes up to several weeks before drivers are available through intel.com and/or Windows update. Features available in github will be available on Windows later.

Note: Older platforms (e.g. Broadwell) are considered to be in maintenance mode for Windows.

How can I enable reading debug environment variables on Linux release builds?

Reading of debug environment variables on Linux release builds can be enabled by specifying NEOReadDebugKeys environment variable with a value of 1.

E.g. to rebuild precompiled kernels you need to set both RebuildPrecompiledKernels and NEOReadDebugKeys to a value of 1.

List of all debug keys can be found here.

Platform support

Which Intel platforms are supported by the driver?

See README.md.

How can I check that my specific device is supported by the driver?

To check support for any device, you can follow these steps:

  1. Go to Ark and find your Device ID
  2. Check if this Device ID is enumerated in the supported device list

Do you provide binary packages with support for DG1?

Yes. Please refer to official installation guide.

When will support for platform X be added?

We will start adding platform support after platform is disclosed by Intel. It is our intention to offer full support ahead of platform's market availability.

Who are we?

The Compute Runtime team is part of GSE (Graphics Software Engineering).

Most of our engineers are located in Poland, United States, and India.