Commit Graph

5 Commits

Author SHA1 Message Date
Michael Suo
c235be42dd [jit] kill script namespace (#34515)
Summary:
Pull Request resolved: https://github.com/pytorch/pytorch/pull/34515

Once upon a time we thought this was necessary. In reality it is not, so
removing it.

For backcompat, our public interface (defined in `api/`) still has
typedefs to the old `script::` names.

There was only one collision: `Pass` as a `Stmt` and `Pass` as a graph
transform. I renamed one of them.

Test Plan: Imported from OSS

Differential Revision: D20353503

Pulled By: suo

fbshipit-source-id: 48bb911ce75120a8c9e0c6fb65262ef775dfba93
2020-03-11 23:32:48 -07:00
Jerry Zhang
2e7eef41ac [quant][graphmode] Swap quantized functional linear with aten::linear (#33853)
Summary:
Pull Request resolved: https://github.com/pytorch/pytorch/pull/33853

Quant fusion relies on inline, but inline will break the CallFunction("linaer", ...) into a if block
it will be hard to recognize this block and swap it with quantized::linear, in order to
preserve the op, we will swap all quantized functional linear into aten::linear.
They might produce different backward graph, but this is called in the step before we get quantized
model, so it shouldn't affect anything.
We'll integrate this with convert_script later in the new "finalize_quant" API

Test Plan:
python test/test_jit.py

Imported from OSS

Differential Revision: D20343873

fbshipit-source-id: 423e03bf893b79267d2dc97bc997ee1bfe54ec0f
2020-03-09 15:45:20 -07:00
Jie
2b79bab029 [CUDA_FUSER] Fork CUDA fuser (#33527)
Summary:
Separating CUDA fuser from CPU fuser.

1. New node in IR - prim::CudaFusionGroup:
   This enables the cuda fuser to co-exist along side the old fuser. Allows us
   to incrementally build and expand cuda fuser.

2. copied FuseGraph optimization passes to CudaFuserGraph:
   We will re-factor & reuse Chunk/Concat in the old fuser logic, which is
   handled in the optimization pass at this moment. Unfortunately many code in
   the pass is tightly binded with the legacy fuser, which makes code sharing
   difficult.
   The CudaFusionGraph will support only a subset of operations comparing to
   legacy fuser (CUDA only). It is registered as a custom pass post fusion via
     ```torch._C._jit_register_cuda_fuser()```
   To have it in effect, you should also turn off fusion on GPU via
     ```torch._C._jit_override_can_fuse_on_gpu(False)```

3. We don't have codegen in this PR yet (WIP). Currently we just fall back to
   the old fuser.
Pull Request resolved: https://github.com/pytorch/pytorch/pull/33527

Differential Revision: D20171598

Pulled By: ZolotukhinM

fbshipit-source-id: 9a3c0f06f46da7eaa80ae7551c04869f5b03ef71
2020-03-04 20:25:08 -08:00
Zino Benaissa
cab8772c6c Freezing Torchscript modules (#32178)
Summary:
This patch enables folding GetAttr nodes with their corresponding
values. _jit_pass_freeze_module API returns a new TorchScipt module
where all function calls and get attributes are inlined.
Usage:

frozen_model = torch._C._freeze_module(scrited_model._c)
frozen_model.forward(...)

This API currently optimizes the forward method. We will follow up to
to preserve and optimize methods and attributes that are annotated as
 torch.jit.interface.

Several future improvements to JIT optimizations are required to maximize
clean up/de-sugar the graph and eliminate redundancies.
Ideally, we want to produce a graph that can easily be lowered to
GLOW and other low-level backends.
__
Pull Request resolved: https://github.com/pytorch/pytorch/pull/32178

Differential Revision: D19419640

Pulled By: bzinodev

fbshipit-source-id: 52baffaba9bca2cd60a8e747baa68d57711ad42b
2020-03-02 11:38:36 -08:00
Michael Suo
dbe850af5b [jit] do the code reorg (#33851)
Summary:
Pull Request resolved: https://github.com/pytorch/pytorch/pull/33851

Rationale and context described in #33828.

Script to reproduce the move:
https://gist.github.com/suo/16cbefaaeb67ca5a7c6caffd49b7f6e9
ghstack-source-id: 99079645

Test Plan: Make sure CI passes

Reviewed By: jamesr66a

Differential Revision: D20133869

fbshipit-source-id: 390e9241a9c85366d9005c492ac31f10aa96488e
2020-02-27 13:02:51 -08:00