| 1 | # SPDX-License-Identifier: Apache-2.0 |
| 2 | # SPDX-FileCopyrightText: Copyright contributors to the vLLM project |
| 3 | import copy |
| 4 | |
| 5 | import pytest |
| 6 | import torch |
| 7 | |
| 8 | from vllm.compilation.passes.inductor_pass import ( |
| 9 | CallableInductorPass, |
| 10 | InductorPass, |
| 11 | pass_context, |
| 12 | ) |
| 13 | from vllm.compilation.passes.pass_manager import PostGradPassManager |
| 14 | from vllm.config import ModelConfig, VllmConfig |
| 15 | from vllm.config.utils import Range |
| 16 | |
| 17 | |
| 18 | # dummy custom pass that doesn't inherit |
| 19 | def simple_callable(graph: torch.fx.Graph): |
| 20 | pass |
| 21 | |
| 22 | |
| 23 | # Should fail to add directly to the pass manager |
| 24 | def test_bad_callable(): |
| 25 | config = VllmConfig() |
| 26 | |
| 27 | pass_manager = PostGradPassManager() |
| 28 | pass_manager.configure(config) |
| 29 | |
| 30 | with pytest.raises(AssertionError): |
| 31 | pass_manager.add(simple_callable) |
| 32 | |
| 33 | |
| 34 | # Pass that inherits from InductorPass |
| 35 | class ProperPass(InductorPass): |
| 36 | def __call__(self, graph: torch.fx.graph.Graph) -> None: |
| 37 | pass |
| 38 | |
| 39 | |
| 40 | @pytest.mark.parametrize( |
| 41 | "callable", |
| 42 | [ |
| 43 | ProperPass(), |
| 44 | # Can also wrap callables in CallableInductorPass for compliance |
| 45 | CallableInductorPass(simple_callable), |
| 46 | CallableInductorPass(simple_callable, InductorPass.hash_source(__file__)), |
| 47 | ], |
| 48 | ) |
| 49 | def test_pass_manager_uuid(callable): |
| 50 | # Set the pass context as PassManager uuid uses it |
| 51 | with pass_context(Range(start=1, end=8)): |
| 52 | # Some passes need dtype to be set |
| 53 | config = VllmConfig(model_config=ModelConfig(dtype=torch.bfloat16)) |
| 54 | |
| 55 | pass_manager = PostGradPassManager() |
| 56 | pass_manager.configure(config) |
| 57 | |
| 58 | # Check that UUID is different if the same pass is added 2x |
| 59 | pass_manager.add(callable) |
| 60 | uuid1 = pass_manager.uuid() |
| 61 | pass_manager.add(callable) |
| 62 | uuid2 = pass_manager.uuid() |
| 63 | assert uuid1 != uuid2 |
| 64 | |
| 65 | # UUID should be the same as the original one, |
| 66 | # as we constructed in the same way. |
| 67 | pass_manager2 = PostGradPassManager() |
| 68 | pass_manager2.configure(config) |
| 69 | pass_manager2.add(callable) |
| 70 | assert uuid1 == pass_manager2.uuid() |
| 71 | |
| 72 | # UUID should be different due to config change |
| 73 | config2 = copy.deepcopy(config) |
| 74 | config2.compilation_config.pass_config.fuse_norm_quant = ( |
| 75 | not config2.compilation_config.pass_config.fuse_norm_quant |
| 76 | ) |
| 77 | config2.compilation_config.pass_config.fuse_act_quant = ( |
| 78 | not config2.compilation_config.pass_config.fuse_act_quant |
| 79 | ) |
| 80 | pass_manager3 = PostGradPassManager() |
| 81 | pass_manager3.configure(config2) |
| 82 | pass_manager3.add(callable) |
| 83 | assert uuid1 != pass_manager3.uuid() |