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// Copyright (c) 2021-2023 The Khronos Group, Inc.
//
// SPDX-License-Identifier: CC-BY-4.0
include::{generated}/meta/{refprefix}VK_KHR_cooperative_matrix.adoc[]
=== Other Extension Metadata
*Last Modified Date*::
2023-05-03
*Interactions and External Dependencies*::
- This extension provides API support for
{GLSLregistry}/khr/GLSL_KHR_cooperative_matrix.txt[`GLSL_KHR_cooperative_matrix`]
*Contributors*::
- Jeff Bolz, NVIDIA
- Markus Tavenrath, NVIDIA
- Daniel Koch, NVIDIA
- Kevin Petit, Arm Ltd.
- Boris Zanin, AMD
=== Description
This extension adds support for using cooperative matrix types in SPIR-V.
Cooperative matrix types are medium-sized matrices that are primarily
supported in compute shaders, where the storage for the matrix is spread
across all invocations in some scope (usually a subgroup) and those
invocations cooperate to efficiently perform matrix multiplies.
Cooperative matrix types are defined by the
{spirv}/KHR/SPV_KHR_cooperative_matrix.html[`SPV_KHR_cooperative_matrix`]
SPIR-V extension and can be used with the
{GLSLregistry}/khr/GLSL_KHR_cooperative_matrix.txt[`GLSL_KHR_cooperative_matrix`]
GLSL extension.
This extension includes support for enumerating the matrix types and
dimensions that are supported by the implementation.
include::{generated}/interfaces/VK_KHR_cooperative_matrix.adoc[]
=== New SPIR-V Capabilities
* <<spirvenv-capabilities-table-CooperativeMatrixKHR,CooperativeMatrixKHR>>
=== Issues
=== Version History
* Revision 2, 2023-05-03 (Kevin Petit)
** First KHR revision
* Revision 1, 2019-02-05 (Jeff Bolz)
** NVIDIA vendor extension
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