Description

NumSubgroups

Decorating a variable with the NumSubgroups built-in decoration will make that variable contain the number of subgroups in the local workgroup.

Valid Usage

  • VUID-NumSubgroups-NumSubgroups-04293
    The NumSubgroups decoration must be used only within the GLCompute, MeshEXT, TaskEXT, MeshNV, or TaskNV Execution Model

  • VUID-NumSubgroups-NumSubgroups-04294
    The variable decorated with NumSubgroups must be declared using the Input Storage Class

  • VUID-NumSubgroups-NumSubgroups-04295
    The variable decorated with NumSubgroups must be declared as a scalar 32-bit integer value

See Also

No cross-references are available

Document Notes

For more information, see the Vulkan Specification

This page is extracted from the Vulkan Specification. Fixes and changes should be made to the Specification, not directly.

Copyright

Copyright 2014-2024 The Khronos Group Inc.

SPDX-License-Identifier: CC-BY-4.0