Intel has released the Intel Compute Runtime 26.35.39758.10 update for Windows and Linux, bringing several new features and improvements to its GPU compute stack. This includes enabling the Level Zero OpenCL (LEO) driver by default for upcoming Nova Lake S processors on Linux, as well as introducing the Intel Portable ISA (PISA) for general-purpose parallel programming.
The latest update incorporates features like host function-based external semaphores, a hook for applying OpenVINO-related AIL, and implementations of Info Log APIs and initial composite temperature support within Sysman. The Compute Runtime now also supports reading the memory Vendor ID (VID). Linux users benefit from kernel driver integration that waits for event host synchronization.
OpenCL support has been expanded with the cl_khr_spirv_queries extension and cl_khr_command_buffer infrastructure. OpenCL LEO, an implementation built atop the Level Zero APIs, is now enabled by default for Nova Lake S processors on Linux. While currently experimental for existing Intel iGPUs and dGPUs, LEO is a key development for future Intel graphics processing.
Alongside these updates, Intel is introducing PISA, a Portable ISA specification for Intel GPUs. According to v0.1 documentation, the goals of Intel PISA include providing a programming model and ISA for general purpose parallel programming. Intel is working to upstream a PISA GPU back-end within the LLVM compiler stack, positioning PISA as similar to NVIDIA’s NVPTX. Crescent Island enablement continues with defer backing enabled and other changes. The Intel Compute Runtime release is available for download on GitHub.
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