vllm/tests/compile/test_functionalization.py
Russell Bryant e489ad7a21
[Misc] Add SPDX-License-Identifier headers to python source files (#12628)
- **Add SPDX license headers to python source files**
- **Check for SPDX headers using pre-commit**

commit 9d7ef44c3cfb72ca4c32e1c677d99259d10d4745
Author: Russell Bryant <rbryant@redhat.com>
Date:   Fri Jan 31 14:18:24 2025 -0500

    Add SPDX license headers to python source files
    
This commit adds SPDX license headers to python source files as
recommended to
the project by the Linux Foundation. These headers provide a concise way
that is
both human and machine readable for communicating license information
for each
source file. It helps avoid any ambiguity about the license of the code
and can
    also be easily used by tools to help manage license compliance.
    
The Linux Foundation runs license scans against the codebase to help
ensure
    we are in compliance with the licenses of the code we use, including
dependencies. Having these headers in place helps that tool do its job.
    
    More information can be found on the SPDX site:
    
    - https://spdx.dev/learn/handling-license-info/
    
    Signed-off-by: Russell Bryant <rbryant@redhat.com>

commit 5a1cf1cb3b80759131c73f6a9dddebccac039dea
Author: Russell Bryant <rbryant@redhat.com>
Date:   Fri Jan 31 14:36:32 2025 -0500

    Check for SPDX headers using pre-commit
    
    Signed-off-by: Russell Bryant <rbryant@redhat.com>

---------

Signed-off-by: Russell Bryant <rbryant@redhat.com>
2025-02-02 11:58:18 -08:00

103 lines
3.8 KiB
Python

# SPDX-License-Identifier: Apache-2.0
import pytest
import torch
import vllm.envs as envs
from vllm import LLM, SamplingParams
from vllm.compilation.fix_functionalization import FixFunctionalizationPass
from vllm.compilation.fusion import (FUSED_OPS, FusionPass, QuantKey,
kFp8DynamicTokenSym, kFp8StaticTensorSym)
from vllm.compilation.fx_utils import find_auto_fn, find_auto_fn_maybe, is_func
from vllm.compilation.reshapes import RedundantReshapesPass
from vllm.config import CompilationConfig
from .backend import TestBackend
OPS_IN_MODEL = [
torch.ops._C.rotary_embedding.default,
torch.ops._C.fused_add_rms_norm.default,
torch.ops._C.silu_and_mul.default,
]
RMS_OP = torch.ops._C.rms_norm.default
RMS_QUANT_OPS = {
"static_fp8": [
torch.ops._C.rms_norm_static_fp8_quant.default,
torch.ops._C.fused_add_rms_norm_static_fp8_quant.default
],
}
prompts = [
"Hello, my name is",
"The president of the United States is",
"The capital of France is",
"The future of AI is",
]
@pytest.mark.parametrize(
"model, quant_key",
[("nm-testing/TinyLlama-1.1B-Chat-v1.0-FP8-e2e", kFp8StaticTensorSym),
("nm-testing/TinyLlama-1.1B-Chat-v1.0-FP8_DYNAMIC-e2e",
kFp8DynamicTokenSym)])
@pytest.mark.parametrize("do_fusion", [True, False])
@pytest.mark.skipif(envs.VLLM_TARGET_DEVICE != "cuda",
reason="Only test on CUDA")
def test_fix_functionalization(model: str, quant_key: QuantKey,
do_fusion: bool):
torch.set_default_device("cuda")
config = CompilationConfig.PassConfig(enable_fusion=do_fusion,
enable_reshape=True)
reshape_pass = RedundantReshapesPass(config)
fusion_pass = FusionPass.instance(config)
passes = [reshape_pass, fusion_pass] if do_fusion else [reshape_pass]
func_pass = FixFunctionalizationPass(config)
backend_func = TestBackend(*passes, func_pass)
backend_no_func = TestBackend(*passes)
# instantiate a full engine and manually compile the model 2x
# (with and without FixFunctionalizationPass)
llm = LLM(model=model, enforce_eager=True)
model_runner = llm.llm_engine.model_executor.driver_worker.model_runner
orig_model = model_runner.model
# TODO mark inputs dynamic? (currently torch.compile is triggered 4x)
# Can only do that by using the decorator but then we'd have to instantiate
# 2 LLM instances.
sampling_params = SamplingParams(temperature=0.0, top_p=1.0)
model_runner.model = torch.compile(orig_model,
fullgraph=True,
backend=backend_func)
gen_func = llm.generate(prompts, sampling_params)
model_runner.model = torch.compile(orig_model,
fullgraph=True,
backend=backend_no_func)
gen_no_func = llm.generate(prompts, sampling_params)
for output_func, output_no_func in zip(gen_func, gen_no_func):
assert output_func.outputs[0].text == output_no_func.outputs[0].text
# OPS_IN_MODEL always appear. RMS_OP is fused away if we run fusion,
# and replaced by fused quantized ops in RMS_QUANT_OPS.
rms_ops = [FUSED_OPS[(quant_key, True)], FUSED_OPS[(quant_key, False)]
] if do_fusion else [RMS_OP]
ops = OPS_IN_MODEL + rms_ops
for op in ops:
find_auto_fn(backend_no_func.graph_post_pass.nodes, op)
assert find_auto_fn_maybe(backend_func.graph_post_pass.nodes,
op) is None # noqa: E501
# make sure the ops were all de-functionalized
found = dict()
for node in backend_func.graph_post_pass.nodes:
for op in ops:
if is_func(node, op):
found[op] = True
assert all(found[op] for op in ops)