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