Summary:
Pull Request resolved: https://github.com/pytorch/pytorch/pull/37106
Recomputing the aliasdb on every fusion iteration + in every subblock
is hugely expensive. Instead, update it in-place when doing fusion.
The graph fuser pass operates by pushing nodes into a fusion group. So
we start with
```
x, y = f(a, b, c)
```
and end with:
```
x_out, y_out = prim::fusionGroup(a, b, c)
x_in, y_in = f(a_in, b_in, c_in)
-> x_in, y_in
```
We destroy the `x` and `y` `Value*`s in the process. This operation is
easy to express as an update to the aliasDb--`x_out` just takes on all
the aliasing information `x` used to have. In particular, since we know
`f` and `prim::fusionGroup` are purely functional, we don't have to mess
with any write information.
This PR is the bare minimum to get this working, in the interest of
unscrewing the compilation times ASAP.
Followups I want to do:
- We don't have a way of expressing deletion of values in AliasDb. In
`graph_fuser.cpp` we sometimes construct nodes that we end up throwing
away, and we are littering `MemoryDAG` with references to dangling
pointers. Because of the way the pass works, it's fine, but this is
fragile so I want to fix it.
- We should decouple alias analysis from write tracking, to simplify the
job of keeping the write caches consistent as we mutate the aliasing
information.
- the tensorexpr fuser doesn't do this and thus is incorrect today, we
need to update it to work.
Test Plan: Imported from OSS
Differential Revision: D21219179
Pulled By: suo
fbshipit-source-id: 8ae5397b3a0ad90edec2fbc555647091f1ad5284
Summary:
Pull Request resolved: https://github.com/pytorch/pytorch/pull/35115
This commit runs the newly added tools/clang_format.py on the JIT
codebase and includes all of the formatting changes thus produced.
Testing:
Ran the script, CI.
Test Plan: Imported from OSS
Reviewed By: eellison
Differential Revision: D20568523
Pulled By: SplitInfinity
fbshipit-source-id: e09bdb982ccf090eecfb7c7b461b8d0681eef82b
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
Summary:
This PR removes SymbolicVariable from all tests as well as the specialize_autogradzero and canonicalize_ops passes. These passes used SymbolicVariable in a relatively simple way compared to its few remaining uses.
Removing SymbolicVariable means graphs must be constructed by other methods. IRParser was preferred for tests, but tests requiring pointers to graph internals or differentiation use direct construction instead. See https://github.com/pytorch/pytorch/issues/23989, which was discovered during this process, for why IRParser cannot be used when differentiation is required. Direct construction was also used in the updated passes.
Pull Request resolved: https://github.com/pytorch/pytorch/pull/24007
Test Plan: Only refactors existing tests and preserves current checks; no additional testing needed.
Differential Revision: D16906045
Pulled By: mruberry
fbshipit-source-id: b67df4611562cd7618f969890e2b6840750c7266
Summary:
Pull Request resolved: https://github.com/pytorch/pytorch/pull/24801
This is to fix the ODR-violations in fbcode static builds, which have been broken for several months.
This PR is unfortunately quite large, but the changes are only mechanical:
1. Tests defined in header files -> tests defined in cpp files
2. Remove the `torch::jit::testing` namespace -> `torch::jit`.
3. Single `test.h` file that aggregates all tests.
4. Separate out files for gtest and python versions of the tests instead of using a build flag
5. Add a readme for how to add a new test, and explaining a bit about why the cpp tests are the way they are.
Test Plan: Imported from OSS
Differential Revision: D16878605
Pulled By: suo
fbshipit-source-id: 27b5c077dadd990a5f74e25d01731f9c1f491603
