benchmark

8053e9a1 - Fix FSDP policy imports and clean up diffusion benchmarks (#195909)

Fix FSDP policy imports and clean up diffusion benchmarks (#195909) Summary: ## Background PyTorch’s Dynamo benchmark configuration contains several stale diffusion-related entries. Separately, FSDP policy selection eagerly imports model-specific dependencies, including an obsolete Diffusers module path. This can break FSDP benchmarks even when running unrelated models. ## What this PR does - Lazily imports only the model class required by the selected FSDP policy. - Updates the Stable Diffusion transformer import to its current Diffusers path. - Adds focused regression tests without requiring Diffusers or TorchBench. - Removes nonexistent stable_diffusion configuration and stale expected-result entries. - Documents why the skipped component models are absent from the aggregate dispatcher. - Corrects the auraflow CLI spelling while retaining auroflow as a compatibility alias. ## These tests actually fail when the behavior breaks Restoring the pre-fix `get_fsdp_auto_wrap_policy` (eager imports, old path) -- both tests die before reaching an assertion: ERROR: test_default_fsdp_policy_does_not_import_model_dependencies ERROR: test_diffusion_fsdp_policy_imports_current_model_class ModuleNotFoundError: No module named 'diffusers' Keeping the lazy import but reverting only the module path: FAIL: test_diffusion_fsdp_policy_imports_current_model_class AssertionError: expected call not found. Expected: import_module('diffusers.models.transformers.transformer_2d') Actual: import_module('diffusers.models.transformer_2d') Keeping the corrected path but importing Diffusers eagerly at function entry, i.e. fixing the path without fixing the laziness: ERROR: test_default_fsdp_policy_does_not_import_model_dependencies ModuleNotFoundError: No module named 'diffusers' X-link: https://github.com/pytorch/pytorch/pull/195909 Approved by: https://github.com/anijain2305 Reviewed By: izaitsevfb Differential Revision: D119521120 fbshipit-source-id: fcd4dada11c3c9182eb6759acaf88f0e0c40be6f