72 lines
2.5 KiB
Python
72 lines
2.5 KiB
Python
import gc
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import pytest
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import torch
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from vllm.distributed.parallel_state import cleanup_dist_env_and_memory
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from tests.conftest import OmniRunner
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from tests.utils import DeviceMemoryMonitor, hardware_test
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from vllm_omni.inputs.data import OmniDiffusionSamplingParams
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from vllm_omni.platforms import current_omni_platform
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models = ["riverclouds/qwen_image_random"]
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def inference(model_name: str, offload: bool = True):
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gc.collect()
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current_omni_platform.empty_cache()
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device_index = current_omni_platform.current_device()
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current_omni_platform.reset_peak_memory_stats()
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monitor = DeviceMemoryMonitor(device_index=device_index, interval=0.02)
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monitor.start()
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with OmniRunner(
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model_name,
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# TODO: we might want to add overlapped feature e2e tests
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# cache_backend="cache_dit",
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enable_cpu_offload=offload,
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) as runner:
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current_omni_platform.reset_peak_memory_stats()
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height = 256
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width = 256
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runner.omni.generate(
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"a photo of a cat sitting on a laptop keyboard",
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OmniDiffusionSamplingParams(
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height=height,
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width=width,
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num_inference_steps=9,
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guidance_scale=0.0,
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generator=torch.Generator(device=current_omni_platform.device_type).manual_seed(42),
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),
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)
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peak = monitor.peak_used_mb
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monitor.stop()
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gc.collect()
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current_omni_platform.empty_cache()
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return peak
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@pytest.mark.core_model
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@pytest.mark.diffusion
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@hardware_test(res={"cuda": "L4", "rocm": "MI325"})
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@pytest.mark.parametrize("model_name", models)
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def test_cpu_offload_diffusion_model(model_name: str):
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try:
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offload_peak_memory = inference(model_name, offload=True)
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cleanup_dist_env_and_memory()
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no_offload_peak_memory = inference(model_name, offload=False)
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except Exception:
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pytest.fail("Inference failed")
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print(f"Offload peak memory: {offload_peak_memory} MB")
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print(f"No offload peak memory: {no_offload_peak_memory} MB")
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# Set platform-specific VRAM saving thresholds to account
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# for varying runtime memory overhead and fragmentation between CUDA and ROCm.
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is_rocm = torch.version.hip is not None
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threshold = 2500 if not is_rocm else 2100
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assert offload_peak_memory + threshold < no_offload_peak_memory, (
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f"Offload peak memory {offload_peak_memory} MB should be less than "
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f"no offload peak memory {no_offload_peak_memory} MB by {threshold} MB"
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)
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