News: 0001614798

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Vulkan 1.4.344 Released With New Extension From Valve

([Vulkan] 4 Hours Ago Vulkan 1.4.344)


Vulkan 1.4.344 is out today as the latest routine spec update for this high performance graphics and compute API. Besides a handful of fixes and clarifications, Vulkan 1.4.344 brings a new extension courtesy of Valve engineers.

The new extension introduced by Vulkan 1.4.344 is VK_VALVE_shader_mixed_float_dot_product . Valve's Mike Blumenkrantz and Georg Lehmann worked on the VK_VALVE_shader_mixed_float_dot_product extension. With VK_VALVE_shader_mixed_float_dot_product is the ability to use mixed precision dot product accumulate operations in shaders.

The VK_VALVE_shader_mixed_float_dot_product extension depends upon a new SPIR-V extension, SPV_VALVE_mixed_float_dot_product. SPV_VALVE_mixed_float_dot_product allows support for dot product operations on low-precision inputs with potentially higher precision accumulation. SPV_VALVE_mixed_float_dot_product initially lays out support for four different types:

- 2 component vector of 16bit float inputs with 32bit accumulation

- 2 component vector of 16bit float inputs with 16bit accumulation

- 2 component vector of bfloat16 inputs with 32bit or bfloat16 accumulation

- 4 component vector of 8bit float inputs with 32bit accumulation

That's the main highlight of today's Vulkan 1.4.344 update. All the changes in this spec revision can be found via [1]GitHub .



[1] https://github.com/KhronosGroup/Vulkan-Docs/commit/6aefabc0ad51073cf060e384ce43a59250d4d69c


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-- Dave Barry, "Pornography"