Commit graph

4 commits

Author SHA1 Message Date
Peter Bell
8b39498a23 codegen: Allow string arguments to have defaults (#45665)
Summary:
Pull Request resolved: https://github.com/pytorch/pytorch/pull/45665

Fixes #43944

Note that the codegen doesn't use a proper parser so, in the same way as with lists, the string `, ` cannot appear in defaults or it will be interpreted as a splitting point between arguments.

Test Plan: Imported from OSS

Reviewed By: albanD

Differential Revision: D24141835

Pulled By: ezyang

fbshipit-source-id: 578127861fd2504917f4486c44100491a2c40343
2020-10-06 21:53:56 -07:00
Sebastian Messmer
6e2eee2b9d Add faithful C++ API (#44087)
Summary:
Pull Request resolved: https://github.com/pytorch/pytorch/pull/44087

Each op taking a TensorOptions argument now has an additional overload in the C++ frontend where it takes scattered ScalarType, Layout, Device, bool instead of one TensorOptions argument.

If it is a c10-full op, then the scattered version calls into the dispatcher and the gathered version is a proxy calling into the scattered version.
If it is a non-c10-full op, then the gathered version calls into the dispatcher and the scattered version is a proxy calling into the gathered version.

This should minimize the amount of gathering and scattering needed.

This PR is also a prerequisite to remove the re-gathering of arguments that is currently happening in VariableKernel. Currently, VariableKernels gather arguments into a TensorOptions object
to call into the C++ API. In a PR stacked on top of this, VariableKernel will just directly call into the scattered C++ API introduced here and avoid the gathering step.
ghstack-source-id: 113355689

Test Plan:
waitforsandcastle

vs master: https://www.internalfb.com/intern/fblearner/details/216169815/

vs previous diff: https://www.internalfb.com/intern/fblearner/details/216169957/

Reviewed By: ezyang

Differential Revision: D23492188

fbshipit-source-id: 3e84c467545ad9371e98e09075a311bd18411c5a
2020-10-02 04:08:53 -07:00
Brian Hirsh
2739a7c599 Byte-for-byte compatibility fixes in codegen (#44879)
Summary: Pull Request resolved: https://github.com/pytorch/pytorch/pull/44879

Test Plan: Imported from OSS

Reviewed By: ezyang

Differential Revision: D23825163

Pulled By: bdhirsh

fbshipit-source-id: 4d8028274f82c401b393c4fe1b9e32de3f4909c6
2020-09-25 08:06:50 -07:00
Edward Yang
6ea89166bd Rewrite of ATen code generator (#42629)
Summary:
Pull Request resolved: https://github.com/pytorch/pytorch/pull/42629

How to approach reviewing this diff:

- The new codegen itself lives in `tools/codegen`. Start with `gen.py`, then read `model.py` and them the `api/` folder. The comments at the top of the files describe what is going on. The CLI interface of the new codegen is similar to the old one, but (1) it is no longer necessary to explicitly specify cwrap inputs (and now we will error if you do so) and (2) the default settings for source and install dir are much better; to the extent that if you run the codegen from the root source directory as just `python -m tools.codegen.gen`, something reasonable will happen.
- The old codegen is (nearly) entirely deleted; every Python file in `aten/src/ATen` was deleted except for `common_with_cwrap.py`, which now permanently finds its home in `tools/shared/cwrap_common.py` (previously cmake copied the file there), and `code_template.py`, which now lives in `tools/codegen/code_template.py`. We remove the copying logic for `common_with_cwrap.py`.
- All of the inputs to the old codegen are deleted.
- Build rules now have to be adjusted to not refer to files that no longer exist, and to abide by the (slightly modified) CLI.
- LegacyTHFunctions files have been generated and checked in. We expect these to be deleted as these final functions get ported to ATen. The deletion process is straightforward; just delete the functions of the ones you are porting. There are 39 more functions left to port.

Signed-off-by: Edward Z. Yang <ezyang@fb.com>

Test Plan: Imported from OSS

Reviewed By: bhosmer

Differential Revision: D23183978

Pulled By: ezyang

fbshipit-source-id: 6073ba432ad182c7284a97147b05f0574a02f763
2020-08-31 09:00:22 -07:00