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Remove dispatching functionality from optimizer_argparse #2998

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Summary:
Context: This dispatcher's only usage is to raise an exception with qKG. There is no need for it to be a dispatcher.

This diff:

  • makes optimizer_argparse no longer a dispatcher
  • Moves the error for qKG into the body of the now-only optimizer_argparse function
  • Removes special function for qKG
  • Changes type annotations so that the first argument is always an AcquisitionFunction; it was always used that way, with different types used only in tests.

Reviewed By: saitcakmak, Balandat

Differential Revision: D65231763

@facebook-github-bot facebook-github-bot added the CLA Signed Do not delete this pull request or issue due to inactivity. label Oct 30, 2024
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This pull request was exported from Phabricator. Differential Revision: D65231763

esantorella added a commit to esantorella/Ax that referenced this pull request Oct 30, 2024
…2998)

Summary:

Context: This dispatcher's only usage is to raise an exception with qKG. There is no need for it to be a dispatcher.

This diff:
* makes `optimizer_argparse` no longer a dispatcher
* Moves the error for qKG into the body of the now-only `optimizer_argparse` function
* Removes special function for qKG
* Changes type annotations so that the first argument is always an `AcquisitionFunction`; it was always used that way, with different types used only in tests.

Reviewed By: saitcakmak, Balandat

Differential Revision: D65231763
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codecov-commenter commented Oct 30, 2024

Codecov Report

Attention: Patch coverage is 94.59459% with 2 lines in your changes missing coverage. Please review.

Project coverage is 95.60%. Comparing base (2c2241e) to head (e749edb).

Files with missing lines Patch % Lines
ax/models/torch/tests/test_optimizer_argparse.py 93.75% 2 Missing ⚠️
Additional details and impacted files
@@            Coverage Diff             @@
##             main    #2998      +/-   ##
==========================================
- Coverage   95.60%   95.60%   -0.01%     
==========================================
  Files         483      483              
  Lines       49007    48976      -31     
==========================================
- Hits        46855    46825      -30     
+ Misses       2152     2151       -1     

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.

esantorella added a commit to esantorella/Ax that referenced this pull request Oct 31, 2024
…2998)

Summary:

Context: This dispatcher's only usage is to raise an exception with qKG. There is no need for it to be a dispatcher.

This diff:
* makes `optimizer_argparse` no longer a dispatcher
* Moves the error for qKG into the body of the now-only `optimizer_argparse` function
* Removes special function for qKG
* Changes type annotations so that the first argument is always an `AcquisitionFunction`; it was always used that way, with different types used only in tests.

Reviewed By: saitcakmak, Balandat

Differential Revision: D65231763
Summary:

Context: It appears that using `qKnowledgeGradient` with MBM doesn't work, since [this line](https://github.com/facebook/Ax/blob/535af4edff70cbf20a49c676377f5c8945560d03/ax/models/torch/botorch_modular/acquisition.py#L339) passes the argument `optimizer` to `_argparse_kg`, which errors [here](https://github.com/facebook/Ax/blob/535af4edff70cbf20a49c676377f5c8945560d03/ax/models/torch/botorch_modular/optimizer_argparse.py#L169) because it has now received the argument "optimizer" twice.

We don't really need the `optimizer_argparse` special case for qKG anymore. This existed for two reasons:
- in order to construct initial conditions, which can be handled by `optimize_acqf`, and
- to ensure that the optimizer is `optimize_acqf`, because others are not supported

This diff:
* Modifies the `optimize_argparse` case for qKG to do nothing except update the optimizer to `optimize_acqf` and then call the base case

Implementation notes:
* Isn't it nonintuitive to set the optimizer then override it? Yes, a little, but the user can't choose the optimizer, so we're not overriding a user-specified choice. Also, lots of arguments to the `optimizer_argparse` functions get ignored. The "right" thing might be to put the choice of optimizer inside a dispatcher so that it can depend on the acquisition class, but that would be a bigger change.
* Do we really need this dispatcher anymore, if it is doing so little? Maybe. Third parties may wish to use it to accommodate acquisition functions that are not in Ax. On the other hand, this dispatcher is currently not doing much of anything.
* Do the `optimize_argparse` functions still need to support so many arguments, given that some of them seemed to just be there for constructing initial conditions? Probably not; I mean to look into that in a follow-up.

Reviewed By: saitcakmak

Differential Revision: D65227420
…2998)

Summary:

Context: This dispatcher's only usage is to raise an exception with qKG. There is no need for it to be a dispatcher.

This diff:
* makes `optimizer_argparse` no longer a dispatcher
* Moves the error for qKG into the body of the now-only `optimizer_argparse` function
* Removes special function for qKG
* Changes type annotations so that the first argument is always an `AcquisitionFunction`; it was always used that way, with different types used only in tests.

Reviewed By: saitcakmak, Balandat

Differential Revision: D65231763
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This pull request was exported from Phabricator. Differential Revision: D65231763

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This pull request has been merged in 2b14d3f.

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3 participants