# VK_EXT_shader_subgroup_partitioned(3) Manual Page

## Name

VK_EXT_shader_subgroup_partitioned - device extension

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## Registered Extension Number

663

## Revision

1

## Ratification Status

Ratified

## Extension and Version Dependencies

VK_KHR_get_physical_device_properties2
or
Vulkan Version 1.1

## SPIR-V Dependencies

- SPV_EXT_shader_subgroup_partitioned

- SPV_NV_shader_subgroup_partitioned

## Contact

- Jeff Bolz [GitHub]jeffbolznv

## Other Extension Metadata

Last Modified Date

  2025-11-12

Interactions and External Dependencies

  - This extension provides API support for `GL_NV_shader_subgroup_partitioned`

Contributors

  - Jeff Bolz, NVIDIA

## Description

This extension enables support for a new class of group operations on subgroups via the `GL_NV_shader_subgroup_partitioned` GLSL extension and `SPV_EXT_shader_subgroup_partitioned` SPIR-V extension. Support for these new operations is advertised via the VK_SUBGROUP_FEATURE_PARTITIONED_BIT_EXT bit. Note that there is not a new GLSL extension since `SPV_EXT_shader_subgroup_partitioned` is compatible with `SPV_NV_shader_subgroup_partitioned`, so the `GL_NV_shader_subgroup_partitioned` GLSL extension can still be used.

This extension requires Vulkan 1.1, for general subgroup support.

## New Structures

- Extending VkPhysicalDeviceFeatures2, VkDeviceCreateInfo:

  - VkPhysicalDeviceShaderSubgroupPartitionedFeaturesEXT

## New Enum Constants

- `VK_EXT_SHADER_SUBGROUP_PARTITIONED_EXTENSION_NAME`

- `VK_EXT_SHADER_SUBGROUP_PARTITIONED_SPEC_VERSION`

- Extending VkStructureType:

  - VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_SHADER_SUBGROUP_PARTITIONED_FEATURES_EXT

- Extending VkSubgroupFeatureFlagBits:

  - VK_SUBGROUP_FEATURE_PARTITIONED_BIT_EXT

## Version History

- Revision 1, 2025-11-12 (Jeff Bolz)

  - Promoted from `VK_NV_shader_subgroup_partitioned`

## See Also

No cross-references are available

## 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 2014-2026 The Khronos Group Inc.

SPDX-License-Identifier: CC-BY-4.0