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[bc breaking] unify filtering functions#322
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Summary: bc breaking, but we don't have bc yet, so just mentioning this upfront Test Plan: Reviewers: Subscribers: Tasks: Tags: [ghstack-poisoned]
Summary: bc breaking, but we don't have bc yet, so just mentioning this upfront Test Plan: Reviewers: Subscribers: Tasks: Tags: [ghstack-poisoned]
awgu
reviewed
Jul 22, 2024
Summary:
Before this PR, we had two top level filtering affordances on `swap_linear_with_float8_linear`: `skip_fqn_list` and `linear_layer_filter`:
```
def swap_linear_with_float8_linear(
...,
skip_fqn_list: Optional[List[str]] = None,
linear_layer_filter: Optional[Callable[[nn.Linear], bool]] = None,
)
```
This PR unifies them into a single filtering method which is aware of both the FQN as well as the module instance. This should be more future proof and allow for more fine grained filtering.
```
def swap_linear_with_float8_linear(
...,
layer_filter_fn: Optional[Callable[[str, nn.Module], bool]] = None,
)
```
Note that the `filter_out_small_unaligned_layers` function is removed from the public API, and users are encouraged to write their own, again to make this more future proof. I'm not opposed to adding good utility functions back at some point, but IMO we should finalize the main UX first.
Note that in the future (as outlined in the Meta-only UX discussion doc), we may change this function from being just a filter to also providing the float8 per-module config. I'm saving that for a separate PR, which will also be BC breaking (but we don't have BC yet).
Test Plan:
```
./test/test_everything.sh
```
Reviewers:
Subscribers:
Tasks:
Tags:
[ghstack-poisoned]
y-sq
approved these changes
Jul 22, 2024
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Author
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@vkuzo has imported this pull request. If you are a Meta employee, you can view this diff on Phabricator. |
Contributor
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This pull request has been merged in 9d5f892. |
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Stack from ghstack (oldest at bottom):
Summary:
Before this PR, we had two top level filtering affordances on
swap_linear_with_float8_linear:skip_fqn_listandlinear_layer_filter:This PR unifies them into a single filtering method which is aware of both the FQN as well as the module instance. This should be more future proof and allow for more fine grained filtering.
Note that the
filter_out_small_unaligned_layersfunction is removed from the public API, and users are encouraged to write their own, again to make this more future proof. I'm not opposed to adding good utility functions back at some point, but IMO we should finalize the main UX first.Note that in the future (as outlined in the Meta-only UX discussion doc), we may change this function from being just a filter to also providing the float8 per-module config. I'm saving that for a separate PR, which will also be BC breaking (but we don't have BC yet).
Test Plan:
Reviewers:
Subscribers:
Tasks:
Tags:
Differential Revision: D60072597