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

Vulkan APIs in this extension are included in core Vulkan 1.3, with the KHR suffix omitted. External interactions defined by this extension, such as SPIR-V token names, retain their original names. The original Vulkan API 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