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| author | jsmall-nvidia <jsmall@nvidia.com> | 2022-04-12 20:56:05 -0400 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2022-04-12 20:56:05 -0400 |
| commit | c949d5005ede13840d086214d6fe64f2b0fefed5 (patch) | |
| tree | 619b800f86af8efbd834600252e0d343fdae937d /docs/target-compatibility.md | |
| parent | 65c2e7f1ccc6cdb5daec343c7e32b4a9dc463ae4 (diff) | |
Small doc improvement around 8/16 bit types. (#2180)
* #include an absolute path didn't work - because paths were taken to always be relative.
* Added information of 8 and 16 bit types.
* Link to target compatibility.
* Updated 8-bit support added via #2182
Diffstat (limited to 'docs/target-compatibility.md')
| -rw-r--r-- | docs/target-compatibility.md | 16 |
1 files changed, 15 insertions, 1 deletions
diff --git a/docs/target-compatibility.md b/docs/target-compatibility.md index 6fda4ceed..08819ac17 100644 --- a/docs/target-compatibility.md +++ b/docs/target-compatibility.md @@ -9,9 +9,11 @@ Items with ^ means there is some discussion about support later in the document | Feature | D3D11 | D3D12 | VK | CUDA | CPU |-----------------------------|--------------|--------------|------------|---------------|--------------- -| Half Type | No | Yes | Yes | Yes ^ | No + +| Half Type | No | Yes ^ | Yes | Yes ^ | No + | Double Type | Yes | Yes | Yes | Yes | Yes | Double Intrinsics | No | Limited + | Limited | Most | Yes +| u/int8_t Type | No | No | Yes ^ | Yes | Yes +| u/int16_t Type | No | Yes ^ | Yes ^ | Yes | Yes | u/int64_t Type | No | Yes ^ | Yes | Yes | Yes | u/int64_t Intrinsics | No | No | Yes | Yes | Yes | int matrix | Yes | Yes | No + | Yes | Yes @@ -47,6 +49,18 @@ There appears to be a problem writing to a StructuredBuffer containing half on D In order for half to work in CUDA, NVRTC must be able to include `cuda_fp16.h` and related files. Please read the [CUDA target documentation](cuda-target.md) for more details. +## u/int8_t Type + +Not currently supported in D3D11/D3D12 because not supported in HLSL/DXIL/DXBC. + +Supported in Vulkan via the extensions `GL_EXT_shader_explicit_arithmetic_types` and `GL_EXT_shader_8bit_storage`. + +## u/int16_t Type + +Requires SM6.2 which requires DXIL and therefore DXC and D3D12. For DXC this is discussed [here](https://github.com/Microsoft/DirectXShaderCompiler/wiki/16-Bit-Scalar-Types). + +Supported in Vulkan via the extensions `GL_EXT_shader_explicit_arithmetic_types` and `GL_EXT_shader_16bit_storage`. + ## u/int64_t Type Requires SM6.0 which requires DXIL for D3D12. Therefore not available with DXBC on D3D11 or D3D12. |