Intel Tiger Lake OpenCL Support On Linux Now Considered Production Ready
Written by Michael Larabel in Intel on 5 August 2020 at 01:54 AM EDT. Add A Comment
INTEL --
With all the recent work on Intel's open-source compute stack around the vector back-end and GPU code generation with their ISPC compiler there was another significant milestone achieved that went unnoticed until spotting the change a few days ago.

The open-source Intel Compute Runtime in the past two weeks now has "production" ready OpenCL support for the forthcoming Gen12 Tiger Lake graphics. That's good news with Tiger Lake laptops expected to market soon.

Up until the Intel Compute Runtime 20.29.17408 release two weeks ago, the Tiger Lake OpenCL support in the documentation was always marked as "early support" but is now promoted to "production" in matching that of prior generations of Intel graphics hardware. The Intel oneAPI Level Zero support for Tiger Lake meanwhile remains at the "early support" state.

This open-source Intel compute stack is exposing OpenCL 3.0 support for Tiger Lake right now while Broadwell through Ice Lake is at OpenCL 2.1. Intel engineers have said that OpenCL 3.0 support will come to prior generations of hardware once the OpenCL 3.0 specification is finalized. While under the provisional specification, OpenCL 3.0 so far was just turned on for next-generation Tiger Lake / Gen12 even though OpenCL 2.x hardware/drivers can implement CL 3.0. Thankfully when the CL 3.0 specification is firmed up later this year we should see punctual official OpenCL 3.0 support for those targets back to Skylake if not Broadwell too.

The support matrix for oneAPI Level Zero and OpenCL can be found via the compute-runtime releases.
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Michael Larabel is the principal author of Phoronix.com and founded the site in 2004 with a focus on enriching the Linux hardware experience. Michael has written more than 20,000 articles covering the state of Linux hardware support, Linux performance, graphics drivers, and other topics. Michael is also the lead developer of the Phoronix Test Suite, Phoromatic, and OpenBenchmarking.org automated benchmarking software. He can be followed via Twitter or contacted via MichaelLarabel.com.

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