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@Gasoonjia Gasoonjia commented Jan 5, 2026

Stack from ghstack (oldest at bottom):

Add utility functions to the header-only common_shims_slim library:

  1. DType constants:

    • aoti_torch_dtype_float32() - Returns 6 (ScalarType::Float)
    • aoti_torch_dtype_bfloat16() - Returns 15 (ScalarType::BFloat16)
    • aoti_torch_dtype_int64() - Returns 4 (ScalarType::Long)
    • aoti_torch_dtype_int32() - Returns 3 (ScalarType::Int)
    • aoti_torch_dtype_int16() - Returns 2 (ScalarType::Short)
    • aoti_torch_dtype_int8() - Returns 1 (ScalarType::Char)
    • aoti_torch_dtype_bool() - Returns 11 (ScalarType::Bool)
  2. Device type constants:

    • aoti_torch_device_type_cpu() - Returns 0 (DeviceType::CPU)
    • aoti_torch_device_type_cuda() - Returns 1 (DeviceType::CUDA)
  3. Grad mode functions (not supported in ExecuTorch):

    • aoti_torch_grad_mode_is_enabled() - Always returns false
    • aoti_torch_grad_mode_set_enabled() - Returns Ok for false, NotSupported for true

Differential Revision: D90126250

Add utility functions to the header-only common_shims_slim library:

1. DType constants:
   - `aoti_torch_dtype_float32()` - Returns 6 (ScalarType::Float)
   - `aoti_torch_dtype_bfloat16()` - Returns 15 (ScalarType::BFloat16)
   - `aoti_torch_dtype_int64()` - Returns 4 (ScalarType::Long)
   - `aoti_torch_dtype_int32()` - Returns 3 (ScalarType::Int)
   - `aoti_torch_dtype_int16()` - Returns 2 (ScalarType::Short)
   - `aoti_torch_dtype_int8()` - Returns 1 (ScalarType::Char)
   - `aoti_torch_dtype_bool()` - Returns 11 (ScalarType::Bool)

2. Device type constants:
   - `aoti_torch_device_type_cpu()` - Returns 0 (DeviceType::CPU)
   - `aoti_torch_device_type_cuda()` - Returns 1 (DeviceType::CUDA)

3. Grad mode functions (not supported in ExecuTorch):
   - `aoti_torch_grad_mode_is_enabled()` - Always returns false
   - `aoti_torch_grad_mode_set_enabled()` - Returns Ok for false, NotSupported for true

Differential Revision: [D90126250](https://our.internmc.facebook.com/intern/diff/D90126250/)

[ghstack-poisoned]
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🧪 See artifacts and rendered test results at hud.pytorch.org/pr/pytorch/executorch/16457

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Gasoonjia added a commit that referenced this pull request Jan 5, 2026
Add utility functions to the header-only common_shims_slim library:

1. DType constants:
   - `aoti_torch_dtype_float32()` - Returns 6 (ScalarType::Float)
   - `aoti_torch_dtype_bfloat16()` - Returns 15 (ScalarType::BFloat16)
   - `aoti_torch_dtype_int64()` - Returns 4 (ScalarType::Long)
   - `aoti_torch_dtype_int32()` - Returns 3 (ScalarType::Int)
   - `aoti_torch_dtype_int16()` - Returns 2 (ScalarType::Short)
   - `aoti_torch_dtype_int8()` - Returns 1 (ScalarType::Char)
   - `aoti_torch_dtype_bool()` - Returns 11 (ScalarType::Bool)

2. Device type constants:
   - `aoti_torch_device_type_cpu()` - Returns 0 (DeviceType::CPU)
   - `aoti_torch_device_type_cuda()` - Returns 1 (DeviceType::CUDA)

3. Grad mode functions (not supported in ExecuTorch):
   - `aoti_torch_grad_mode_is_enabled()` - Always returns false
   - `aoti_torch_grad_mode_set_enabled()` - Returns Ok for false, NotSupported for true

Differential Revision: [D90126250](https://our.internmc.facebook.com/intern/diff/D90126250/)

ghstack-source-id: 331923139
Pull Request resolved: #16457
@meta-cla meta-cla bot added the CLA Signed This label is managed by the Facebook bot. Authors need to sign the CLA before a PR can be reviewed. label Jan 5, 2026
Add utility functions to the header-only common_shims_slim library:

1. DType constants:
   - `aoti_torch_dtype_float32()` - Returns 6 (ScalarType::Float)
   - `aoti_torch_dtype_bfloat16()` - Returns 15 (ScalarType::BFloat16)
   - `aoti_torch_dtype_int64()` - Returns 4 (ScalarType::Long)
   - `aoti_torch_dtype_int32()` - Returns 3 (ScalarType::Int)
   - `aoti_torch_dtype_int16()` - Returns 2 (ScalarType::Short)
   - `aoti_torch_dtype_int8()` - Returns 1 (ScalarType::Char)
   - `aoti_torch_dtype_bool()` - Returns 11 (ScalarType::Bool)

2. Device type constants:
   - `aoti_torch_device_type_cpu()` - Returns 0 (DeviceType::CPU)
   - `aoti_torch_device_type_cuda()` - Returns 1 (DeviceType::CUDA)

3. Grad mode functions (not supported in ExecuTorch):
   - `aoti_torch_grad_mode_is_enabled()` - Always returns false
   - `aoti_torch_grad_mode_set_enabled()` - Returns Ok for false, NotSupported for true

Differential Revision: [D90126250](https://our.internmc.facebook.com/intern/diff/D90126250/)

[ghstack-poisoned]
Add utility functions to the header-only common_shims_slim library:

1. DType constants:
   - `aoti_torch_dtype_float32()` - Returns 6 (ScalarType::Float)
   - `aoti_torch_dtype_bfloat16()` - Returns 15 (ScalarType::BFloat16)
   - `aoti_torch_dtype_int64()` - Returns 4 (ScalarType::Long)
   - `aoti_torch_dtype_int32()` - Returns 3 (ScalarType::Int)
   - `aoti_torch_dtype_int16()` - Returns 2 (ScalarType::Short)
   - `aoti_torch_dtype_int8()` - Returns 1 (ScalarType::Char)
   - `aoti_torch_dtype_bool()` - Returns 11 (ScalarType::Bool)

2. Device type constants:
   - `aoti_torch_device_type_cpu()` - Returns 0 (DeviceType::CPU)
   - `aoti_torch_device_type_cuda()` - Returns 1 (DeviceType::CUDA)

3. Grad mode functions (not supported in ExecuTorch):
   - `aoti_torch_grad_mode_is_enabled()` - Always returns false
   - `aoti_torch_grad_mode_set_enabled()` - Returns Ok for false, NotSupported for true

Differential Revision: [D90126250](https://our.internmc.facebook.com/intern/diff/D90126250/)

[ghstack-poisoned]
Add utility functions to the header-only common_shims_slim library:

1. DType constants:
   - `aoti_torch_dtype_float32()` - Returns 6 (ScalarType::Float)
   - `aoti_torch_dtype_bfloat16()` - Returns 15 (ScalarType::BFloat16)
   - `aoti_torch_dtype_int64()` - Returns 4 (ScalarType::Long)
   - `aoti_torch_dtype_int32()` - Returns 3 (ScalarType::Int)
   - `aoti_torch_dtype_int16()` - Returns 2 (ScalarType::Short)
   - `aoti_torch_dtype_int8()` - Returns 1 (ScalarType::Char)
   - `aoti_torch_dtype_bool()` - Returns 11 (ScalarType::Bool)

2. Device type constants:
   - `aoti_torch_device_type_cpu()` - Returns 0 (DeviceType::CPU)
   - `aoti_torch_device_type_cuda()` - Returns 1 (DeviceType::CUDA)

3. Grad mode functions (not supported in ExecuTorch):
   - `aoti_torch_grad_mode_is_enabled()` - Always returns false
   - `aoti_torch_grad_mode_set_enabled()` - Returns Ok for false, NotSupported for true

Differential Revision: [D90126250](https://our.internmc.facebook.com/intern/diff/D90126250/)

[ghstack-poisoned]
Add utility functions to the header-only common_shims_slim library:

1. DType constants:
   - `aoti_torch_dtype_float32()` - Returns 6 (ScalarType::Float)
   - `aoti_torch_dtype_bfloat16()` - Returns 15 (ScalarType::BFloat16)
   - `aoti_torch_dtype_int64()` - Returns 4 (ScalarType::Long)
   - `aoti_torch_dtype_int32()` - Returns 3 (ScalarType::Int)
   - `aoti_torch_dtype_int16()` - Returns 2 (ScalarType::Short)
   - `aoti_torch_dtype_int8()` - Returns 1 (ScalarType::Char)
   - `aoti_torch_dtype_bool()` - Returns 11 (ScalarType::Bool)

2. Device type constants:
   - `aoti_torch_device_type_cpu()` - Returns 0 (DeviceType::CPU)
   - `aoti_torch_device_type_cuda()` - Returns 1 (DeviceType::CUDA)

3. Grad mode functions (not supported in ExecuTorch):
   - `aoti_torch_grad_mode_is_enabled()` - Always returns false
   - `aoti_torch_grad_mode_set_enabled()` - Returns Ok for false, NotSupported for true

Differential Revision: [D90126250](https://our.internmc.facebook.com/intern/diff/D90126250/)

[ghstack-poisoned]
Add utility functions to the header-only common_shims_slim library:

1. DType constants:
   - `aoti_torch_dtype_float32()` - Returns 6 (ScalarType::Float)
   - `aoti_torch_dtype_bfloat16()` - Returns 15 (ScalarType::BFloat16)
   - `aoti_torch_dtype_int64()` - Returns 4 (ScalarType::Long)
   - `aoti_torch_dtype_int32()` - Returns 3 (ScalarType::Int)
   - `aoti_torch_dtype_int16()` - Returns 2 (ScalarType::Short)
   - `aoti_torch_dtype_int8()` - Returns 1 (ScalarType::Char)
   - `aoti_torch_dtype_bool()` - Returns 11 (ScalarType::Bool)

2. Device type constants:
   - `aoti_torch_device_type_cpu()` - Returns 0 (DeviceType::CPU)
   - `aoti_torch_device_type_cuda()` - Returns 1 (DeviceType::CUDA)

3. Grad mode functions (not supported in ExecuTorch):
   - `aoti_torch_grad_mode_is_enabled()` - Always returns false
   - `aoti_torch_grad_mode_set_enabled()` - Returns Ok for false, NotSupported for true

Differential Revision: [D90126250](https://our.internmc.facebook.com/intern/diff/D90126250/)

[ghstack-poisoned]
Add utility functions to the header-only common_shims_slim library:

1. DType constants:
   - `aoti_torch_dtype_float32()` - Returns 6 (ScalarType::Float)
   - `aoti_torch_dtype_bfloat16()` - Returns 15 (ScalarType::BFloat16)
   - `aoti_torch_dtype_int64()` - Returns 4 (ScalarType::Long)
   - `aoti_torch_dtype_int32()` - Returns 3 (ScalarType::Int)
   - `aoti_torch_dtype_int16()` - Returns 2 (ScalarType::Short)
   - `aoti_torch_dtype_int8()` - Returns 1 (ScalarType::Char)
   - `aoti_torch_dtype_bool()` - Returns 11 (ScalarType::Bool)

2. Device type constants:
   - `aoti_torch_device_type_cpu()` - Returns 0 (DeviceType::CPU)
   - `aoti_torch_device_type_cuda()` - Returns 1 (DeviceType::CUDA)

3. Grad mode functions (not supported in ExecuTorch):
   - `aoti_torch_grad_mode_is_enabled()` - Always returns false
   - `aoti_torch_grad_mode_set_enabled()` - Returns Ok for false, NotSupported for true

Differential Revision: [D90126250](https://our.internmc.facebook.com/intern/diff/D90126250/)

[ghstack-poisoned]
Add utility functions to the header-only common_shims_slim library:

1. DType constants:
   - `aoti_torch_dtype_float32()` - Returns 6 (ScalarType::Float)
   - `aoti_torch_dtype_bfloat16()` - Returns 15 (ScalarType::BFloat16)
   - `aoti_torch_dtype_int64()` - Returns 4 (ScalarType::Long)
   - `aoti_torch_dtype_int32()` - Returns 3 (ScalarType::Int)
   - `aoti_torch_dtype_int16()` - Returns 2 (ScalarType::Short)
   - `aoti_torch_dtype_int8()` - Returns 1 (ScalarType::Char)
   - `aoti_torch_dtype_bool()` - Returns 11 (ScalarType::Bool)

2. Device type constants:
   - `aoti_torch_device_type_cpu()` - Returns 0 (DeviceType::CPU)
   - `aoti_torch_device_type_cuda()` - Returns 1 (DeviceType::CUDA)

3. Grad mode functions (not supported in ExecuTorch):
   - `aoti_torch_grad_mode_is_enabled()` - Always returns false
   - `aoti_torch_grad_mode_set_enabled()` - Returns Ok for false, NotSupported for true

Differential Revision: [D90126250](https://our.internmc.facebook.com/intern/diff/D90126250/)

[ghstack-poisoned]
Add utility functions to the header-only common_shims_slim library:

1. DType constants:
   - `aoti_torch_dtype_float32()` - Returns 6 (ScalarType::Float)
   - `aoti_torch_dtype_bfloat16()` - Returns 15 (ScalarType::BFloat16)
   - `aoti_torch_dtype_int64()` - Returns 4 (ScalarType::Long)
   - `aoti_torch_dtype_int32()` - Returns 3 (ScalarType::Int)
   - `aoti_torch_dtype_int16()` - Returns 2 (ScalarType::Short)
   - `aoti_torch_dtype_int8()` - Returns 1 (ScalarType::Char)
   - `aoti_torch_dtype_bool()` - Returns 11 (ScalarType::Bool)

2. Device type constants:
   - `aoti_torch_device_type_cpu()` - Returns 0 (DeviceType::CPU)
   - `aoti_torch_device_type_cuda()` - Returns 1 (DeviceType::CUDA)

3. Grad mode functions (not supported in ExecuTorch):
   - `aoti_torch_grad_mode_is_enabled()` - Always returns false
   - `aoti_torch_grad_mode_set_enabled()` - Returns Ok for false, NotSupported for true

Differential Revision: [D90126250](https://our.internmc.facebook.com/intern/diff/D90126250/)

[ghstack-poisoned]
Gasoonjia added a commit that referenced this pull request Jan 27, 2026
Stack from [ghstack](https://github.com/ezyang/ghstack) (oldest at
bottom):
* #16565
* #16551
* #16469
* #16457
* #16455
* #16454
* #16453
* #16452
* #16451
* #16450
* #16449
* #16448
* #16447
* #16446
* __->__ #16724

Copy CUDAGuard and CUDAStreamGuard from cuda/runtime/ to aoti/slim/cuda/
to support slimtensor requirement while get rid of potential circular
dependency:
- cuda_backend/main_functionalities -> aoti/slimtensor ->
cuda_backend/cuda_guard

This change:
- copy guard.h, guard.cpp and test files from backend/cuda_backend to
backend/aoti/slim/cuda/

Differential Revision:
[D91056808](https://our.internmc.facebook.com/intern/diff/D91056808/)
Gasoonjia added a commit that referenced this pull request Jan 27, 2026
…v2 (#16446)

Stack from [ghstack](https://github.com/ezyang/ghstack) (oldest at
bottom):
* #16565
* #16551
* #16469
* #16457
* #16455
* #16454
* #16453
* #16452
* #16451
* #16450
* #16449
* #16448
* #16447
* __->__ #16446
* #16724

Add SlimTensor-based implementations of AOTI shim functions for tensor
creation:

1. `aoti_torch_create_tensor_from_blob_v2()` - Creates a non-owning
SlimTensor that wraps existing memory using the `from_blob()` factory

Both functions support CPU and CUDA devices and handle all 7 SlimTensor
dtypes.

Also add `memory_slim.h` and `memory_slim.cpp` with SlimTensor-based
shim implementations for working on new API while not impact the current
pipeline. Will use memory_slim.{h/cpp} to replace current memory.{h/cpp}
when everything has been set up.

Differential Revision:
[D90126247](https://our.internmc.facebook.com/intern/diff/D90126247/)
Gasoonjia added a commit that referenced this pull request Jan 27, 2026
Stack from [ghstack](https://github.com/ezyang/ghstack) (oldest at
bottom):
* #16565
* #16551
* #16469
* #16457
* #16455
* #16454
* #16453
* #16452
* #16451
* #16450
* #16449
* #16448
* __->__ #16447
* #16446
* #16724

Add SlimTensor-based implementations of AOTI shim functions for tensor
creation:

`aoti_torch_create_tensor_from_blob_v2()` - Creates a non-owning
SlimTensor that wraps existing memory using the `from_blob()` factory

Both functions support CPU and CUDA devices and handle all 7 SlimTensor
dtypes.

Changes:
- Add `memory_slim.h` and `memory_slim.cpp` with SlimTensor-based shim
implementations
- Add `runtime_shims_slim` library target to TARGETS with
`CUDA_AVAILABLE=1` preprocessor flag
- Add `cuda_shim_slim_cpp_unittest()` function for SlimTensor test
targets

Differential Revision:
[D90126244](https://our.internmc.facebook.com/intern/diff/D90126244/)
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