VK_KHR_shader_integer_dot_product(3)

# VK_KHR_shader_integer_dot_product(3) Manual Page

## Name

VK_KHR_shader_integer_dot_product - device extension

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## Registered Extension Number

281

## Revision

1

## Extension and Version Dependencies

- Requires support for Vulkan 1.0

- Requires `VK_KHR_get_physical_device_properties2` to be enabled for any device-level functionality

## Deprecation state

- Promoted to Vulkan 1.3

## Contact

- Kevin Petit kevinpetit

## 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 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

## See Also

VkPhysicalDeviceShaderIntegerDotProductFeaturesKHR, VkPhysicalDeviceShaderIntegerDotProductPropertiesKHR

## Document Notes

For more information, see the Vulkan Specification

This page is a generated document. Fixes and changes should be made to the generator scripts, not directly.

## Copyright

Copyright 2014-2022 The Khronos Group Inc.

SPDX-License-Identifier: CC-BY-4.0