Name

VK_KHR_shader_integer_dot_product - device extension

VK_KHR_shader_integer_dot_product

Name String

VK_KHR_shader_integer_dot_product

Extension Type

Device extension

Registered Extension Number

281

Revision

1

Ratification Status

Ratified

Extension and Version Dependencies

VK_KHR_get_physical_device_properties2

Deprecation State

• Promoted to Vulkan 1.3

Contact

• Kevin Petit @kpet%0A*Here describe the issue or question you have about the VK_KHR_shader_integer_dot_product extension*

Extension Proposal

VK_KHR_shader_integer_dot_product

Other Extension Metadata

Last Modified Date

2021-06-16

Interactions and External Dependencies

• Promoted to Vulkan 1.3 Core
• This extension requires SPV_KHR_integer_dot_product.
• 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 PhysicalDeviceFeatures2, DeviceCreateInfo:

  • PhysicalDeviceShaderIntegerDotProductFeaturesKHR

• Extending PhysicalDeviceProperties2:

  • PhysicalDeviceShaderIntegerDotProductPropertiesKHR

New Enum Constants

• KHR_SHADER_INTEGER_DOT_PRODUCT_EXTENSION_NAME

• KHR_SHADER_INTEGER_DOT_PRODUCT_SPEC_VERSION

• Extending StructureType:

  • STRUCTURE_TYPE_PHYSICAL_DEVICE_SHADER_INTEGER_DOT_PRODUCT_FEATURES_KHR
  • 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

See Also

PhysicalDeviceShaderIntegerDotProductFeaturesKHR, PhysicalDeviceShaderIntegerDotProductPropertiesKHR

Document Notes

For more information, see the Vulkan Specification

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