vkGetPhysicalDeviceCooperativeMatrixPropertiesKHR - Returns properties describing what cooperative matrix types are supported

Description

If pProperties is NULL, then the number of cooperative matrix properties available is returned in pPropertyCount. Otherwise, pPropertyCount must point to a variable set by the application to the number of elements in the pProperties array, and on return the variable is overwritten with the number of structures actually written to pProperties. If pPropertyCount is less than the number of cooperative matrix properties available, at most pPropertyCount structures will be written, and INCOMPLETE will be returned instead of SUCCESS, to indicate that not all the available cooperative matrix properties were returned.

Valid Usage (Implicit)

• physicalDevice must be a valid PhysicalDevice handle

• pPropertyCount must be a valid pointer to a uint32_t value
• If the value referenced by pPropertyCount is not 0, and pProperties is not NULL, pProperties must be a valid pointer to an array of pPropertyCount CooperativeMatrixPropertiesKHR structures

Return Codes

Success

• INCOMPLETE
• SUCCESS

Failure

• ERROR_OUT_OF_DEVICE_MEMORY
• ERROR_OUT_OF_HOST_MEMORY
• ERROR_UNKNOWN
• ERROR_VALIDATION_FAILED

See Also

VK_KHR_cooperative_matrix, CooperativeMatrixPropertiesKHR, PhysicalDevice

VkPhysicalDeviceCooperativeMatrixFeaturesKHR - Structure describing cooperative matrix features that can be supported by an implementation

Members

This structure describes the following features:

Description

If the PhysicalDeviceCooperativeMatrixFeaturesKHR structure is included in the pNext chain of the PhysicalDeviceFeatures2 structure passed to getPhysicalDeviceFeatures2, it is filled in to indicate whether each corresponding feature is supported. If the application wishes to use a Device with any features described by PhysicalDeviceCooperativeMatrixFeaturesKHR, it must add an instance of the structure, with the desired feature members set to TRUE, to the pNext chain of DeviceCreateInfo when creating the Device.

Valid Usage (Implicit)

See Also

VK_KHR_cooperative_matrix, Bool32, StructureType

VkCooperativeMatrixPropertiesKHR - Structure specifying cooperative matrix properties

Description

If some types are preferred over other types (e.g. for performance), they should appear earlier in the list enumerated by getPhysicalDeviceCooperativeMatrixPropertiesKHR.

At least one entry in the list must have power of two values for all of MSize, KSize, and NSize.

If the cooperativeMatrixWorkgroupScope feature is not supported, scope must be SCOPE_SUBGROUP_KHR.

Valid Usage (Implicit)

See Also

VK_KHR_cooperative_matrix, Bool32, ComponentTypeKHR, ScopeKHR, StructureType, getPhysicalDeviceCooperativeMatrixPropertiesKHR

VkPhysicalDeviceCooperativeMatrixPropertiesKHR - Structure describing cooperative matrix properties supported by an implementation

Description

cooperativeMatrixSupportedStages must not have any bits other than SHADER_STAGE_COMPUTE_BIT set.

If the PhysicalDeviceCooperativeMatrixPropertiesKHR structure is included in the pNext chain of the PhysicalDeviceProperties2 structure passed to getPhysicalDeviceProperties2, it is filled in with each corresponding implementation-dependent property.

Valid Usage (Implicit)

See Also

VK_KHR_cooperative_matrix, ShaderStageFlags, StructureType

VkScopeKHR - Specify SPIR-V scope

Description

• SCOPE_DEVICE_KHR corresponds to SPIR-V Device scope.

• SCOPE_WORKGROUP_KHR corresponds to SPIR-V Workgroup scope.
• SCOPE_SUBGROUP_KHR corresponds to SPIR-V Subgroup scope.
• SCOPE_QUEUE_FAMILY_KHR corresponds to SPIR-V QueueFamily scope.

All enum values match the corresponding SPIR-V value.

See Also

VK_KHR_cooperative_matrix, VK_NV_cooperative_matrix, CooperativeMatrixFlexibleDimensionsPropertiesNV, CooperativeMatrixPropertiesKHR, CooperativeMatrixPropertiesNV

VkComponentTypeKHR - Specify SPIR-V cooperative matrix component type

Description

• COMPONENT_TYPE_FLOAT16_KHR corresponds to SPIR-V OpTypeFloat 16.

• COMPONENT_TYPE_FLOAT32_KHR corresponds to SPIR-V OpTypeFloat 32.
• COMPONENT_TYPE_FLOAT64_KHR corresponds to SPIR-V OpTypeFloat 64.
• COMPONENT_TYPE_SINT8_KHR corresponds to SPIR-V OpTypeInt 8 0/1.
• COMPONENT_TYPE_SINT16_KHR corresponds to SPIR-V OpTypeInt 16 0/1.
• COMPONENT_TYPE_SINT32_KHR corresponds to SPIR-V OpTypeInt 32 0/1.
• COMPONENT_TYPE_SINT64_KHR corresponds to SPIR-V OpTypeInt 64 0/1.
• COMPONENT_TYPE_UINT8_KHR corresponds to SPIR-V OpTypeInt 8 0/1.
• COMPONENT_TYPE_UINT16_KHR corresponds to SPIR-V OpTypeInt 16 0/1.
• COMPONENT_TYPE_UINT32_KHR corresponds to SPIR-V OpTypeInt 32 0/1.
• COMPONENT_TYPE_UINT64_KHR corresponds to SPIR-V OpTypeInt 64 0/1.
• COMPONENT_TYPE_BFLOAT16_KHR corresponds to SPIR-V OpTypeFloat 16 BFloat16KHR.
• COMPONENT_TYPE_SINT8_PACKED_NV corresponds to four 8-bit signed integers packed in a 32-bit unsigned integer.
• COMPONENT_TYPE_UINT8_PACKED_NV corresponds to four 8-bit unsigned integers packed in a 32-bit unsigned integer.
• COMPONENT_TYPE_FLOAT_E4M3_NV corresponds to a floating-point type with a sign bit in the most significant bit, followed by four exponent bits, followed by three mantissa bits.
• COMPONENT_TYPE_FLOAT_E5M2_NV corresponds to a floating-point type with a sign bit in the most significant bit, followed by five exponent bits, followed by two mantissa bits.
• COMPONENT_TYPE_FLOAT8_E4M3_EXT corresponds to SPIR-V OpTypeFloat 8 Float8E4M3EXT.
• COMPONENT_TYPE_FLOAT8_E5M2_EXT corresponds to SPIR-V OpTypeFloat 8 Float8E5M2EXT.

See Also

VK_KHR_cooperative_matrix, VK_NV_cooperative_matrix, VK_NV_cooperative_vector, ConvertCooperativeVectorMatrixInfoNV, CooperativeMatrixFlexibleDimensionsPropertiesNV, CooperativeMatrixPropertiesKHR, CooperativeMatrixPropertiesNV, CooperativeVectorPropertiesNV