VkPhysicalDeviceCooperativeMatrix2FeaturesNV

The VkPhysicalDeviceCooperativeMatrix2FeaturesNV structure is defined as:

typedef struct VkPhysicalDeviceCooperativeMatrix2FeaturesNV {
    VkStructureType sType;
    void* pNext;
    VkBool32 cooperativeMatrixWorkgroupScope;
    VkBool32 cooperativeMatrixFlexibleDimensions;
    VkBool32 cooperativeMatrixReductions;
    VkBool32 cooperativeMatrixConversions;
    VkBool32 cooperativeMatrixPerElementOperations;
    VkBool32 cooperativeMatrixTensorAddressing;
    VkBool32 cooperativeMatrixBlockLoads;
} VkPhysicalDeviceCooperativeMatrix2FeaturesNV;

This structure describes the following features:

• sType is a VkStructureType value identifying this structure.
• pNext is NULL or a pointer to a structure extending this structure.
• cooperativeMatrixWorkgroupScope indicates that the implementation supports workgroup scope cooperative matrices.
• cooperativeMatrixFlexibleDimensions indicates that the implementation supports cooperative matrix sizes that are a multiple of the granularity advertised in VkCooperativeMatrixFlexibleDimensionsPropertiesNV.
• cooperativeMatrixReductions indicates that the implementation supports the CooperativeMatrixReductionsNV SPIR-V capability. This allows performing (row, column, 2x2, or all element) reductions on matrices.
• cooperativeMatrixConversions indicates that the implementation supports the CooperativeMatrixConversionsNV SPIR-V capability. This allows converting accumulator matrices to A or B matrices.
• cooperativeMatrixPerElementOperations indicates that the implementation supports the CooperativeMatrixPerElementOperationsNV SPIR-V capability. This allows performing element-wise operations on matrix elements using a callback function.
• cooperativeMatrixTensorAddressing indicates that the implementation supports the TensorAddressingNV and CooperativeMatrixTensorAddressingNV SPIR-V capabilities. This allows using tensor layout and tensor view types for matrix loads and stores.
• cooperativeMatrixBlockLoads indicates that the implementation supports the CooperativeMatrixBlockLoadsNV SPIR-V capability. This allows setting block size for loads and using a callback function to decode block elements.

If the VkPhysicalDeviceCooperativeMatrix2FeaturesNV structure is included in the pNext chain of the VkPhysicalDeviceFeatures2 structure passed to vkGetPhysicalDeviceFeatures2, it is filled in to indicate whether each corresponding feature is supported. If the application wishes to use a VkDevice with any features described by VkPhysicalDeviceCooperativeMatrix2FeaturesNV, it must add an instance of the structure, with the desired feature members set to VK_TRUE, to the pNext chain of VkDeviceCreateInfo when creating the VkDevice.