Summary:
* Deletes all weak script decorators / associated data structures / methods
* In order to keep supporting the standard library in script, this enables recursive script on any function defined in `torch.nn`
* Most changes in `torch/nn` are the result of `ag -Q "weak" torch/nn/ -l | xargs sed -i '/weak/d'`, only `rnn.py` needed manual editing to use the `ignore` and `export` to continue supporting the overloaded `forward` methods
* `Sequential`/`ModuleList` no longer need to be added to constants since they are compiled on demand
This should also fix https://github.com/pytorch/pytorch/issues/22212
Pull Request resolved: https://github.com/pytorch/pytorch/pull/22212
Differential Revision: D15988346
Pulled By: driazati
fbshipit-source-id: af223e3ad0580be895377312949997a70e988e4f
Summary:
The changes include:
1. Allow key/value to have different number of features with query. It supports the case when key and value have different feature dimensions.
2. Support three separate proj_weight, in addition to a single in_proj_weight. The proj_weight of key and value may have different dimension with that of query so three separate proj_weights are necessary. In case that key and value have same dimension as query, it is preferred to use a single large proj_weight for performance reason. However, it should be noted that using a single large weight or three separate weights is a size-dependent decision.
3. Give an option to use static k and v in the multihead_attn operator (see saved_k and saved_v). Those static key/value tensors can now be re-used when training the model.
4. Add more test cases to cover the arguments.
Note: current users should not be affected by the changes.
Pull Request resolved: https://github.com/pytorch/pytorch/pull/21288
Differential Revision: D15738808
Pulled By: zhangguanheng66
fbshipit-source-id: 288b995787ad55fba374184b3d15b5c6fe9abb5c
Summary:
Currently multihead attention for half type is broken
```
File "/home/ngimel/pytorch/torch/nn/functional.py", line 3279, in multi_head_attention_forward
attn_output = torch.bmm(attn_output_weights, v)
RuntimeError: Expected object of scalar type Float but got scalar type Half for argument https://github.com/pytorch/pytorch/issues/2 'mat2'
```
because softmax converts half inputs into fp32 inputs. This is unnecessary - all the computations in softmax will be done in fp32 anyway, and the results need to be converted into fp16 for the subsequent batch matrix multiply, so nothing is gained by writing them out in fp32. This PR gets rid of type casting in softmax, so that half works.
Pull Request resolved: https://github.com/pytorch/pytorch/pull/21658
Differential Revision: D15807487
Pulled By: zhangguanheng66
fbshipit-source-id: 4709ec71a36383d0d35a8f01021e12e22b94992d
Summary:
Pull Request resolved: https://github.com/pytorch/pytorch/pull/20665
Add gelu activation forward on CPU in pytorch
Compare to current python implemented version of gelu in BERT model like
def gelu(self, x):
x * 0.5 * (1.0 + torch.erf(x / self.sqrt_two))
The torch.nn.functional.gelu function can reduce the forward time from 333ms to 109ms (with MKL) / 112ms (without MKL) for input size = [64, 128, 56, 56] on a devvm.
Reviewed By: zheng-xq
Differential Revision: D15400974
fbshipit-source-id: f606b43d1dd64e3c42a12c4991411d47551a8121
Summary:
Remove the internal functions in multi_head_attention_forward. Those internal functions cause 10-15% performance regression and there is possibly a JIT issue.
Pull Request resolved: https://github.com/pytorch/pytorch/pull/20653
Differential Revision: D15398888
Pulled By: cpuhrsch
fbshipit-source-id: 0a3f053a4ade5009e73d3974fa6733c2bff9d929
Summary:
I believe the `True` and `False` in the doc are reversed :)
Pull Request resolved: https://github.com/pytorch/pytorch/pull/20961
Differential Revision: D15510806
Pulled By: soumith
fbshipit-source-id: 62566bb595e187506b23dedc24892e48f35b1147
Summary:
Attention mask should be of shape `(L, S)` since it is added to `attn_output_weights`.
Pull Request resolved: https://github.com/pytorch/pytorch/pull/20850
Differential Revision: D15495587
Pulled By: ezyang
fbshipit-source-id: 61d6801da5291df960daab273e874df28aedbf6e
Summary:
Remove weak_script. After recently splitting the forward() function in MultiheadAttention module, we notice a memory leak on GPU. Fix the problem by removing those "weak_script" decorator.
Pull Request resolved: https://github.com/pytorch/pytorch/pull/20563
Differential Revision: D15368262
Pulled By: zhangguanheng66
fbshipit-source-id: 475db93c9ee0dbaea8fb914c004e7d1e0d419bc2
Summary:
Moving functions from torch/nn/modules/activation.py to torch/nn/functional.py. For functions not implemented (_get_input_buffer and _set_input_buffer), a TODO is added.
Pull Request resolved: https://github.com/pytorch/pytorch/pull/20415
Differential Revision: D15318078
Pulled By: jamarshon
fbshipit-source-id: 5ca698e2913821442cf8609cc61ac8190496a3c6
Summary:
This PR add Poisson NLL loss to aten and substitute the python implementation with a call to the c++.
Fixes#19186.
Pull Request resolved: https://github.com/pytorch/pytorch/pull/19316
Differential Revision: D15012957
Pulled By: ezyang
fbshipit-source-id: 0a3f56e8307969c2f9cc321b5357a496c3d1784e
Summary:
fixes#20215
The confusing behavior was caused by typos in type annotation :(
Pull Request resolved: https://github.com/pytorch/pytorch/pull/20306
Differential Revision: D15276216
Pulled By: ailzhang
fbshipit-source-id: 1b0c9635a72a05c9b537f80d85b117b5077fbec7
Summary:
in functional interfaces we do boolean dispatch, but all to max_pool\*d_with_indices. This change it to emit max_pool\*d op instead when it's not necessary to expose with_indices ops to different backends (for jit).
It also bind max_pool\*d to the torch namespace, which is the same behavior with avg_pool\*d
Pull Request resolved: https://github.com/pytorch/pytorch/pull/19449
Differential Revision: D15016839
Pulled By: wanchaol
fbshipit-source-id: f77cd5f0bcd6d8534c1296d89b061023a8288a2c
Summary:
Fixes https://github.com/pytorch/pytorch/issues/10654
The issue is that in tracing `.size` returns an int tensor, and when an int tensor is multiplied by a scalar the int dominates and the scalar gets casted 0.
Pull Request resolved: https://github.com/pytorch/pytorch/pull/18875
Differential Revision: D14814441
Pulled By: eellison
fbshipit-source-id: a4e96a2698f2fcbf3ec4b2bb4c43a30250f30ad9
Summary:
Pull Request resolved: https://github.com/pytorch/pytorch/pull/18598
ghimport-source-id: c74597e5e7437e94a43c163cee0639b20d0d0c6a
Stack from [ghstack](https://github.com/ezyang/ghstack):
* **#18598 Turn on F401: Unused import warning.**
This was requested by someone at Facebook; this lint is turned
on for Facebook by default. "Sure, why not."
I had to noqa a number of imports in __init__. Hypothetically
we're supposed to use __all__ in this case, but I was too lazy
to fix it. Left for future work.
Be careful! flake8-2 and flake8-3 behave differently with
respect to import resolution for # type: comments. flake8-3 will
report an import unused; flake8-2 will not. For now, I just
noqa'd all these sites.
All the changes were done by hand.
Signed-off-by: Edward Z. Yang <ezyang@fb.com>
Differential Revision: D14687478
fbshipit-source-id: 30d532381e914091aadfa0d2a5a89404819663e3
Summary:
Addind the same warning message already present in the mse_loss function to the L1 losses when input and target sizes are different.
Pull Request resolved: https://github.com/pytorch/pytorch/pull/18565
Differential Revision: D14671415
Pulled By: soumith
fbshipit-source-id: 01f5e1fb1ea119dbb2aecf1d94d0cb462f284982
Summary:
To address the issue of broadcasting giving the wrong result in `nn.MSELoss()` as mentioned here https://github.com/pytorch/pytorch/issues/16045 . In particular, the issue often arises when computing the loss between tensors with shapes (n, 1) and (n,)
Pull Request resolved: https://github.com/pytorch/pytorch/pull/18349
Differential Revision: D14594176
Pulled By: soumith
fbshipit-source-id: f23ae68a4bf42f3554ad7678a314ba2c7532a6db
Summary:
In the loss doc description, replace the deprecated 'reduct' and 'size_average' parameters with the 'reduction' parameter.
Pull Request resolved: https://github.com/pytorch/pytorch/pull/17300
Differential Revision: D14195789
Pulled By: soumith
fbshipit-source-id: 625e650ec20f13b2d22153a4a535656cf9c8f0eb
Summary:
Eventually we should remove these when we're certain that all our ops
handle memory overlaps correctly.
Pull Request resolved: https://github.com/pytorch/pytorch/pull/17576
Differential Revision: D14349990
Pulled By: zou3519
fbshipit-source-id: c3a09f6113b9b1bf93e7f13c0b426c45b2cdf21f
Summary:
one_hot docs is missing [here](https://pytorch.org/docs/master/nn.html#one-hot).
I dug around and could not find a way to get this working properly.
Differential Revision: D14104414
Pulled By: zou3519
fbshipit-source-id: 3f45c8a0878409d218da167f13b253772f5cc963
Summary:
- Moved a few functions from `autograd` namespace to `aten` namespace to be visible from JIT nativeResolver.
- Added a hack to loop up keyword only argument. Will add proper support for kw only later
- Simulate function overload in aten using `_<number>` as function name suffix.
- Even `forward` returns multiple outputs like in `kthvalue`, there's at most one requires grad that we currently support.
- Removed the `TensorList` related ops here since partial `TensorList` support is prone to bugs. Our symbolic diff for `cat` was never tested with autodiff, and it seems broken. Need to find another proper way to support these ops(either by properly supporting `TensorList` or sth like `prim::ConstantChunk` and leave them for next PR.
Ops supported in this PR:
```
erf
expand_as
index
kthvalue
mean
permute
pow
rsub
select
sqrt
squeeze
t
to
topk
transpose
view
var
embedding
logsumexp
// grad is None
_dim_arange
contiguous
nonzero
ones_like
```
Pull Request resolved: https://github.com/pytorch/pytorch/pull/16689
Differential Revision: D14020806
Pulled By: ailzhang
fbshipit-source-id: a5e2c144a7be5a0d39d7ac5f93cb402ec12503a5
Summary:
The use case for making this PR is the following bug :
(with F = torch.nn.functional)
`F.max_pool2d.__module__` is `torch._jit_internal`
`F.max_pool2d.__name__` is `fn`
With this PR you get:
`F.max_pool2d.__module__` is `torch.nn.functional`
`F.max_pool2d.__name__` is `max_pool2d`
Pull Request resolved: https://github.com/pytorch/pytorch/pull/16922
Differential Revision: D14020053
Pulled By: driazati
fbshipit-source-id: c109c1f04640f3b2b69bc4790b16fef7714025dd
Summary:
Here is a stab at implementing an option to zero out infinite losses (and NaN gradients).
It might be nicer to move the zeroing to the respective kernels.
The default is currently `False` to mimic the old behaviour, but I'd be half inclined to set the default to `True`, because the behaviour wasn't consistent between CuDNN and Native anyways and the NaN gradients aren't terribly useful.
This topic seems to come up regularly, e.g. in #14335
Pull Request resolved: https://github.com/pytorch/pytorch/pull/16199
Differential Revision: D14020462
Pulled By: ezyang
fbshipit-source-id: 5ba8936c66ec6e61530aaf01175dc49f389ae428
Summary:
This PR is a follow up of #15460, it did the following things:
* remove the undefined tensor semantic in jit script/tracing mode
* change ATen/JIT schema for at::index and other index related ops with `Tensor?[]` to align with what at::index is really doing and to adopt `optional[tensor]` in JIT
* change python_print to correctly print the exported script
* register both TensorList and ListOfOptionalTensor in JIT ATen ops to support both
* Backward compatibility for `torch.jit.annotate(Tensor, None)`
List of follow ups:
* remove the undefined tensor semantic in jit autograd, autodiff and grad_of
* remove prim::Undefined fully
For easy reviews, please turn on `hide white space changes` in diff settings.
Pull Request resolved: https://github.com/pytorch/pytorch/pull/16379
Differential Revision: D13855677
Pulled By: wanchaol
fbshipit-source-id: 0e21c14d7de250c62731227c81bfbfb7b7da20ab
Summary:
Changelog:
- Modify concantenation of [1] to a tuple by using cases for list and non-list types.
Pull Request resolved: https://github.com/pytorch/pytorch/pull/16489
Differential Revision: D13875838
Pulled By: soumith
fbshipit-source-id: fade65cc47385986b773b9bde9b4601ab93fe1cf
Summary:
Remove calls to torch.jit._unwrap_optional that are no longer needed.
The remaining instances would require control flow logic for exceptions.
Pull Request resolved: https://github.com/pytorch/pytorch/pull/16245
Differential Revision: D13804292
Pulled By: eellison
fbshipit-source-id: 08c5cbe4b956519be2333de5cf4e202488aff626
Summary:
Fixes#12643, amends to #3341.
- Allow multidimensional input ~~(but apply softmax over `dim=-1`)~~ with `dim` argument
- Cleaner: Less lines of code
- Faster (1.32x speedup vs original, 2x speedup vs using `torch.Distributions`)
- Small fixes in docstring
- Remove some references in docstring. Was the linked (excellent) ipynb the first to do the straight-through trick? Instead, I propose changing to reference to the two papers most known for it.
- Add deprecationwarning for `eps`. It's not needed anymore.
- Initial commit keeps some code alternatives commented to exploit CI
- As of discussion when `gumbel_softmax` was added (#3341), this was merged into `torch.nn.functional` before all the work with `Distributions` and `Pyro`, and there will probably be multiple other best practices for this in the future.
I've tested building using the `Distributions`-api, but it was too slow, see below.
I therefore propose not using `Distributions` to keep it fast and simple, but adding a comment in docstring that `gumbel_softmax` may be deprecated in the future.
```
dist = torch.distributions.RelaxedOneHotCategorical(temperature=tau, logits=logits, validate_args=False)
y_soft = dist.rsample()
```
Pros:
* Built using tricks like `logsumexp` etc
* Explicitly uses `torch.distributions.utils._finfo` to avoid overflow (old implementation had an `eps` flag)
* Maintained for this exact purpose.
Cons:
* Very slow. Construction of distribution adds overhead see timings below. May be solved in future with speedups of `TransformedDistribution` and `Distribution`.
* Assumes which `dim` to apply softmax over.
```
y_soft = logits.new(logits.shape)
y_soft = (logits - y_soft.exponential_().log()) / tau # Gumbel noise
y_soft = y_soft.softmax(dim) # Gumbel softmax noise
```
Pros:
* Faster
```
import time
start = time.time()
num_draws = 1000000
logits = torch.randn(1,3)
for draw in range(num_draws):
y_draw = gumbel_softmax(logits, hard=True)
counts = counts + y_draw
print(end - start)
>> 12.995795965194702
>> 7.658372640609741
>> 20.3382670879364
````
Decide on which path to chose. I'll commit in changes to the unit tests in a while to show that it passes both old tests and new tests. I'll also remove the commented code about `RelaxedOneHotCategorical`
Pull Request resolved: https://github.com/pytorch/pytorch/pull/13339
Differential Revision: D13092434
Pulled By: ezyang
fbshipit-source-id: 4c21788df336f4e9c2ac289022e395b261227b4b
Summary:
1) Reverts https://github.com/pytorch/pytorch/pull/12302 which added support for batched pdist. Except I kept the (non-batched) test improvements that came with that PR, because they are nice to have. Motivation: https://github.com/pytorch/pytorch/issues/15511
2) For the non-batched pdist, improved the existing kernel by forcing fp64 math and properly checking cuda launch errors
3) Added a 'large tensor' test that at least on my machine, fails on the batch pdist implementation.
Pull Request resolved: https://github.com/pytorch/pytorch/pull/15901
Reviewed By: ezyang
Differential Revision: D13616730
Pulled By: gchanan
fbshipit-source-id: 620d3f9b9acd492dc131bad9d2ff618d69fc2954
Summary:
1. Port the FractionalMaxPool3d implementation from THNN/THCUNN to ATen.
2. Expose this function to Python module nn.
Pull Request resolved: https://github.com/pytorch/pytorch/pull/15575
Differential Revision: D13612848
Pulled By: chandlerzuo
fbshipit-source-id: 5f474b39005efa7788e984e8a805456dcdc43f6c
Summary:
Previously we were only constant propping prim::Constants, but we should be constant propping prim::None as well.
Pull Request resolved: https://github.com/pytorch/pytorch/pull/15979
Differential Revision: D13664692
Pulled By: eellison
fbshipit-source-id: 01839403576c21fc030c427e49275b8e1210fa8f
Summary:
- Fixed a few typos and grammar errors.
- Changed the sentences a bit.
- Changed the format of the tuples to be consistent with padding notations in the other places. For example, `ReflectionPad2d`'s dostring contains :math:`H_{out} = H_{in} + \text{padding\_top} + \text{padding\_bottom}`.
I also made sure that the generated html doesn't break.
Pull Request resolved: https://github.com/pytorch/pytorch/pull/15984
Differential Revision: D13649939
Pulled By: soumith
fbshipit-source-id: 0abfa22a7bf1cbc6546ac4859652ce8741d41232
