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⇱ Mesa 25.3 Intel Driver Lands Support For Stochastic Rounding - Phoronix

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Mesa 25.3 Intel Driver Lands Support For Stochastic Rounding

Written by Michael Larabel in Intel on 26 September 2025 at 06:12 AM EDT. 3 Comments
A new feature merged this week for the Intel Mesa compiler code for their ANV Vulkan and Iris Gallium3D drivers is support for Stochastic Rounding.

Stochastic Rounding "SRND" is now wired up for the Intel compiler code within Mesa 25.3. The SRND opcode appears to work with upcoming Intel Xe3 graphics hardware.

👁 Intel Stochastic Rounding merge


Stochastic Rounding can help with the accuracy of low-precision numerical computations and is a win for machine learning (AI/ML) and similar fields with low-precision arithmetic.

The SRND opcode and related Intel compiler handling is merged via this MR ahead of Mesa 25.3 stable due out in November.

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, LinkedIn, or contacted via MichaelLarabel.com.