VK_KHR_shader_integer_dot_product

Other Extension Metadata

Last Modified Date

2021-06-16

Interactions and External Dependencies

• This extension interacts with VK_KHR_shader_float16_int8.

IP Status

No known IP claims.

Contributors

• Kévin Petit, Arm Ltd.
• Jeff Bolz, NVidia
• Spencer Fricke, Samsung
• Jesse Hall, Google
• John Kessenich, Google
• Graeme Leese, Broadcom
• Einar Hov, Arm Ltd.
• Stuart Brady, Arm Ltd.
• Pablo Cascon, Arm Ltd.
• Tobias Hector, AMD
• Jeff Leger, Qualcomm
• Ruihao Zhang, Qualcomm
• Pierre Boudier, NVidia
• Jon Leech, The Khronos Group
• Tom Olson, Arm Ltd.

Description

This extension adds support for the integer dot product SPIR-V instructions defined in SPV_KHR_integer_dot_product. These instructions are particularly useful for neural network inference and training but find uses in other general-purpose compute applications as well.

New Structures

• Extending VkPhysicalDeviceFeatures2, VkDeviceCreateInfo:
  • VkPhysicalDeviceShaderIntegerDotProductFeaturesKHR
• Extending VkPhysicalDeviceProperties2:
  • VkPhysicalDeviceShaderIntegerDotProductPropertiesKHR

New Enum Constants

• VK_KHR_SHADER_INTEGER_DOT_PRODUCT_EXTENSION_NAME
• VK_KHR_SHADER_INTEGER_DOT_PRODUCT_SPEC_VERSION
• Extending VkStructureType:
  • VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_SHADER_INTEGER_DOT_PRODUCT_FEATURES_KHR
  • VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_SHADER_INTEGER_DOT_PRODUCT_PROPERTIES_KHR

Promotion to Vulkan 1.3

Functionality in this extension is included in core Vulkan 1.3, with the KHR suffix omitted. The original type, enum, and command names are still available as aliases of the core functionality.

New SPIR-V Capabilities

• DotProductInputAllKHR
• DotProductInput4x8BitKHR
• DotProductInput4x8BitPackedKHR
• DotProductKHR

Version History

• Revision 1, 2021-06-16 (Kévin Petit)
  • Initial revision