Contact
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Daniel Koch dgkoch
Other Extension Metadata
- Last Modified Date
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2019-05-28
- Interactions and External Dependencies
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This extension requires
SPV_NV_shader_sm_builtins
. -
This extension provides API support for
GL_NV_shader_sm_builtins
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- Contributors
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Jeff Bolz, NVIDIA
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Eric Werness, NVIDIA
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Description
This extension provides the ability to determine device-specific properties on NVIDIA GPUs. It provides the number of streaming multiprocessors (SMs), the maximum number of warps (subgroups) that can run on an SM, and shader builtins to enable invocations to identify which SM and warp a shader invocation is executing on.
This extension enables support for the SPIR-V ShaderSMBuiltinsNV
capability.
These properties and built-ins should typically only be used for debugging purposes.
New Enum Constants
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VK_NV_SHADER_SM_BUILTINS_EXTENSION_NAME
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VK_NV_SHADER_SM_BUILTINS_SPEC_VERSION
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Extending VkStructureType:
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VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_SHADER_SM_BUILTINS_FEATURES_NV
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VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_SHADER_SM_BUILTINS_PROPERTIES_NV
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Issues
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What should we call this extension?
RESOLVED:
NV_shader_sm_builtins
. Other options considered included:-
NV_shader_smid
- but SMID is really easy to typo/confuse as SIMD. -
NV_shader_sm_info
- but Info is typically reserved for input structures
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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.