VK_NV_cooperative_matrix_decode_vector(3)

# VK_NV_cooperative_matrix_decode_vector(3) Manual Page

## Name

VK_NV_cooperative_matrix_decode_vector - device extension

## Registered Extension Number

690

## Revision

1

## Ratification Status

Not ratified

## Extension and Version Dependencies

VK_NV_cooperative_matrix2

## SPIR-V Dependencies

- SPV_NV_cooperative_matrix_decode_vector

## Contact

- Jeff Bolz [GitHub]jeffbolznv

## Extension Proposal

VK_NV_cooperative_matrix_decode_vector

## Other Extension Metadata

Last Modified Date

  2026-04-30

Interactions and External Dependencies

  - This extension provides API support for `GLSL_NV_cooperative_matrix_decode_vector`

Contributors

  - Jeff Bolz, NVIDIA

## Description

This extension adds a device feature for the SPIR-V `CooperativeMatrixDecodeVectorNV` capability and the `SPV_NV_cooperative_matrix_decode_vector` SPIR-V extension.

When enabled, shaders may use an optional decode vector operand with `OpCooperativeMatrixLoadTensorNV` (see that SPIR-V extension) to load multiple block-adjacent elements per decode callback invocation.

An implementation must also support VkPhysicalDeviceCooperativeMatrix2FeaturesNV::`cooperativeMatrixBlockLoads` when exposing this extension.

## New Structures

- Extending VkPhysicalDeviceFeatures2, VkDeviceCreateInfo:

  - VkPhysicalDeviceCooperativeMatrixDecodeVectorFeaturesNV

## New Enum Constants

- `VK_NV_COOPERATIVE_MATRIX_DECODE_VECTOR_EXTENSION_NAME`

- `VK_NV_COOPERATIVE_MATRIX_DECODE_VECTOR_SPEC_VERSION`

- Extending VkStructureType:

  - VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_COOPERATIVE_MATRIX_DECODE_VECTOR_FEATURES_NV

## New SPIR-V Capabilities

- CooperativeMatrixDecodeVectorNV

## Issues

## Version History

- Revision 1, 2026-04-30 (Jeff Bolz)

  - Initial revision

## 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