`grad_dtype` is a new attribute on Tensor to control gradient dtype:
- Access/setting is leaf-only.
- grad_dtype is respected when (1) when assigning to .grad, and (2) in the engine after the previous node produces incoming gradients for AccumulateGrad. (See table below for details)
- Not setting grad_dtype preserves the current behavior. Accessing it returns `t.dtype`
- `grad_dtype` cannot be set when there is already a `.grad` present and the dtypes conflict.
| `grad_dtype` setting | Setting `.grad` manually | Incoming gradient from autograd engine |
|-----------------------|--------------------------|-----------------------------------------|
| **Default (tensor’s dtype)** | `.grad` must match tensor’s dtype | Engine casts incoming grad to tensor’s dtype |
| **Set to specific dtype** | `.grad` must match that dtype | Engine casts incoming grad to the specified dtype |
| **Set to `None`** | `.grad` may be any dtype | Engine does not cast; accepts incoming grad dtype as-is |
Pull Request resolved: https://github.com/pytorch/pytorch/pull/162815
Approved by: https://github.com/albanD
Summary:
Add support for torch._check() in TorchScript jit.script frontend.
* It will be special cased to behave like torch._assert, turned into an if + raise exception.
Test Plan:
Unit tests
Rollback Plan:
Differential Revision: D79744604
Pull Request resolved: https://github.com/pytorch/pytorch/pull/159988
Approved by: https://github.com/davidberard98
This PR is part of a series attempting to re-submit https://github.com/pytorch/pytorch/pull/134592 as smaller PRs.
In jit tests:
- Add and use a common raise_on_run_directly method for when a user runs a test file directly which should not be run this way. Print the file which the user should have run.
- Raise a RuntimeError on tests which have been disabled (not run)
Pull Request resolved: https://github.com/pytorch/pytorch/pull/154725
Approved by: https://github.com/clee2000
Applies the remaining flake8-comprehension fixes and checks. This changes replace all remaining unnecessary generator expressions with list/dict/set comprehensions which are more succinct, performant, and better supported by our torch.jit compiler. It also removes useless generators such as 'set(a for a in b)`, resolving it into just the set call.
Pull Request resolved: https://github.com/pytorch/pytorch/pull/94676
Approved by: https://github.com/ezyang
Summary:
Pull Request resolved: https://github.com/pytorch/pytorch/pull/52659
**Summary**
This commit adds `torch._C.ScriptDict`, a dictionary type that has reference
semantics across the Python/TorchScript boundary. That is, modifications
made to instances of `torch._C.ScriptDict` in TorchScript are visible in
Python even when it is not returned from the function. Instances can be
constructed by passing an instance of a Python dictionary to
`torch.jit.script`. In the case of an empty dictionary, its type is
assumed to be `Dict[str, Tensor]` to be consistent with the handling of
empty dictionaries in TorchScript source code.
`torch._C.ScriptDict` is implemented using a modified version of pybind's `stl_bind.h`-style bindings attached to `ScriptDict`, `ScriptDictIterator` and `ScriptDictKeyIterator`, wrapper classes around `c10::impl::GenericDict` and `c10::impl::GenericDict::iterator`. These bindings allow instances of `torch._C.ScriptDict` to be used as if it were a regular `dict` Python. Reference semantics are achieved by simply retrieving the `IValue` contained in `ScriptDict` in `toIValue` (invoked when converting Python arguments to `IValues` before calling TorchScript code).
**Test Plan**
This commit adds `TestScriptDict` to `test_list_dict.py`, a set of tests
that check that all of the common dictionary operations are supported
and that instances have reference semantics across the
Python/TorchScript boundary.
Differential Revision:
D27211605
D27211605
Test Plan: Imported from OSS
Reviewed By: gmagogsfm
Pulled By: SplitInfinity
fbshipit-source-id: 446d4e5328375791aa73eb9e8b04dfe3465af960
Summary:
Pull Request resolved: https://github.com/pytorch/pytorch/pull/48876
**Summary**
This commit adds support for `del` statements with multiple targets.
Targets are deleted left-to-right just like Python.
**Test Plan**
This commit updates the `TestBuiltins.test_del_multiple_operands` unit
test to actually test that multiple deletion works instead of asserting
that an error is thrown.
**Fixes**
This commit fixes#48635.
Test Plan: Imported from OSS
Reviewed By: ZolotukhinM
Differential Revision: D25386285
Pulled By: SplitInfinity
fbshipit-source-id: c0fbd8206cf98b2bd1b695d0b778589d58965a74
Summary:
Pull Request resolved: https://github.com/pytorch/pytorch/pull/39033
Added `real` and `imag` views as tensor attributes. Right now, tensor.imag is disabled for real tensors. This is because if we return a new tensor of zeros, the user would be able to update the tensor returned by tensor.imag which should not be allowed as numpy returns a read-only array, and pytorch doesn't support read-only tensors yet.
TODO in follow-up PRs:
1. add a setter for `real` and `imag`
2. add special case in codegen for `real` and `imag` backward functions.
3. remove `copy_real` and `copy_imag` methods.
Test Plan: Imported from OSS
Differential Revision: D21767542
Pulled By: anjali411
fbshipit-source-id: 539febf01f01ff055e3fbc7e9ff01fd3fe729056
Summary:
**Summary**
This commit modifies the JIT frontend to handle `del` statements with
variables as targets by dropping the mapping corresponding to that
variable from the environment stack maintained by the IR emitter code.
**Test Plan**
This commit adds test cases for deleting a variable, deleting a variable
and then using it, and deleting a variable in a if-statement, and then
using it.
Pull Request resolved: https://github.com/pytorch/pytorch/pull/37608
Differential Revision: D21507239
Pulled By: SplitInfinity
fbshipit-source-id: ac7e353817dc76990ece294c95965cf585d6bdfb
Summary:
del in python supports multiple operands, but PyTorch c++ frontend doesn't support that. To be consistent across different frontends, we decided to throw an exception when finding del with multiple operands inside torchscript.
Pull Request resolved: https://github.com/pytorch/pytorch/pull/38089
Test Plan: Unit tests in test/jit/test_builtins.py
Differential Revision: D21478900
Pulled By: SplitInfinity
fbshipit-source-id: 1cbd61301680c5d6652ef104996178cefcdd3716
Summary:
Fixes#30775
This adds TorchScript implementations (copied from `python_variable.cpp`) for the remainin `Tensor` properties that were missing from the jit, in addition to a test that ensures new properties will trigger a failure so we can decide whether we want to add them as well.
For `some_tensor`, adds:
* `some_tensor.T`
* `some_tensor.ndim`
* `some_tensor.is_leaf`
* `some_tensor.name`
](https://our.intern.facebook.com/intern/diff/20153288/)
Pull Request resolved: https://github.com/pytorch/pytorch/pull/33906
Pulled By: driazati
Differential Revision: D20153288
fbshipit-source-id: 2ddc48a14267077bc176065267e5ce52181b3d6b
Summary:
Pull Request resolved: https://github.com/pytorch/pytorch/pull/30445
Create distributed and rpc directories under caffe/test for better management
of unit tests.
Differential Revision: D18702786
fbshipit-source-id: e9daeed0cfb846ef68806f6decfcb57c0e0e3606
Summary:
Pull Request resolved: https://github.com/pytorch/pytorch/pull/29332
Even though we're statically typed, this can be useful, e.g. as
shorthand when iterating through a module list.
Test Plan: Imported from OSS
Differential Revision: D18393097
Pulled By: suo
fbshipit-source-id: aa42e955f88d1b8a876d0727055eb596453b9839
