VK_EXT_shader_subgroup_partitioned

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