Graphics: Intel, Mesa, OpenCL
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Intel Wants You To Help Test The i965 Mesa Shader Cache, Not Yet Enabled By Default
Back in early November Intel finally landed its shader cache support for allowing GLSL shaders to be cached on-disk similar to the RadeonSI shader caching that has been present since earlier in the year. But this functionality isn't yet enabled by default as it still needs more testing.
Last month I covered some early test results of this Intel i965 Mesa shader on-disk cache within Intel's Mesa GLSL Shader Cache Is Speeding Up Game Load Times. In my experiences thus far it's been working out well but currently isn't used by the Intel driver unless the MESA_GLSL_CACHE_DISABLE=0 environment variable is set.
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16-Bit Storage, variablePointers Land For ANV Vulkan Driver
It's always great waking up to new features landing in Mesa Git.
For the past several months Igalia developers have been working on SPV_KHR_16bit_storage and VK_KHR_16bit_storage support for the Intel ANV Vulkan driver. As implied by the name, this is about supporting 16-bit data types in shader input/output interfaces and push constant blocks. This Vulkan "half float" support has now landed in Mesa Git across a number of patches affecting NIR, ANV, and the Intel shader compiler.
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POCL 1.0 RC1 Adds Experimental CUDA Backend, Full OpenCL 1.2 Support
One of the most exciting open-source OpenCL projects we have been following in recent years is POCL as "Portable C" for having an LLVM-based portable OpenCL implementation to run on CPUs as well as GPUs now via AMD HSA back-end and a new experimental NVIDIA CUDA back-end. The POCL 1.0 release is finally near.
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