310 lines
12 KiB
Python
310 lines
12 KiB
Python
#!/usr/bin/env python3
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"""vllm 平台检测补丁
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问题 1：amdsmi 不可用时 platform 回退到 torch.version.hip
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问题 2：rocm.py 中 logger.warning_once() 导致循环导入（默认不再改写；仅保留为显式开关）
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"""
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import os
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import re
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import sys
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import sysconfig
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import traceback
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VLLM_DIR = '/opt/vllm/vllm'
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VLLM_SRC_DIR = '/opt/vllm'
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def patch6_init_platform_fallback():
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"""补丁 6：platforms/__init__.py —— torch.version.hip 兜底
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vLLM 的 is_rocm 检测依赖 import amdsmi；amdsmi 未装时 is_rocm=False，
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current_platform 落到 UnspecifiedPlatform，device_type='' →
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RuntimeError: Device string must not be empty。
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本补丁在 RocmPlatform 的 return 语句前注入 torch.version.hip 兜底。
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采用行结构 + return 定位，不依赖精确字符串匹配
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（vllm main 分支重构频繁，固定字符串匹配已多次失效）。
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"""
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f = os.path.join(VLLM_DIR, 'platforms', '__init__.py')
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lines = open(f).read().splitlines(keepends=True)
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# 兼容单/双引号两种写法（vllm 不同版本可能不同）
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return_idx = None
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for i, ln in enumerate(lines):
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if 'RocmPlatform' in ln and 'return' in ln and 'is_rocm' in ln:
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return_idx = i
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break
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if return_idx is None:
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print('Patch 6: RocmPlatform return statement not found; skipping.')
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return
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if 'torch.version.hip is not None' in ''.join(lines):
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print('Patch 6: already applied (torch.version.hip fallback present).')
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return
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indent = ' ' * (len(lines[return_idx]) - len(lines[return_idx].lstrip()))
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inject = (
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f"{indent}# amdsmi fallback: also check torch.version.hip\n"
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f"{indent}if not is_rocm:\n"
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f"{indent} try:\n"
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f"{indent} import torch as _torch\n"
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f"{indent} if _torch.version.hip is not None:\n"
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f"{indent} is_rocm = True\n"
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f"{indent} except Exception:\n"
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f"{indent} pass\n"
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)
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lines.insert(return_idx, inject)
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open(f, 'w').write(''.join(lines))
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print('Patch 6: __init__.py torch.version.hip fallback applied.')
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def patch7_rocm_break_import_cycle():
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"""补丁 7：platforms/rocm.py —— logger.warning_once → sys.stderr.write
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默认启用安全的“整段 except 块”替换，避免 logger.warning_once() 在平台检测
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期间触发循环导入，导致 current_platform 落到 UnspecifiedPlatform。
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如需禁用，设置 VLLM_PATCH_ROCM_WARNING_ONCE=0。
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"""
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if os.environ.get('VLLM_PATCH_ROCM_WARNING_ONCE') == '0':
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print('Patch 7: skipped (VLLM_PATCH_ROCM_WARNING_ONCE=0).')
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return
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f = os.path.join(VLLM_DIR, 'platforms', 'rocm.py')
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c = open(f).read()
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if 'amdsmi unavailable, using torch.cuda fallback' in c:
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print('Patch 7: already applied.')
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return
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pattern = re.compile(
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r'(\n\s*except Exception as e:\n'
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r'\s*logger\.debug\("Failed to get GCN arch via amdsmi: %s", e\)\n'
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r'\s*logger\.warning_once\(\n'
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r'(?:\s*"[^"]*"\n)+'
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r'\s*\)\n)',
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re.MULTILINE,
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)
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def repl(match):
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indent = re.search(r'\n(\s*)except Exception as e:', match.group(1)).group(1)
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body_indent = indent + ' '
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return (
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f'\n{indent}except Exception as e:\n'
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f'{body_indent}import sys as _sys\n'
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f'{body_indent}_sys.stderr.write('
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'"vLLM ROCm: amdsmi unavailable, using torch.cuda fallback for GPU detection\\n")\n'
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)
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c2, n = pattern.subn(repl, c, count=1)
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if c2 != c:
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open(f, 'w').write(c2)
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print('Patch 7: rocm.py logger.warning_once circular import patch applied.')
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else:
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print('Patch 7: already applied or pattern not found.')
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def patch9_registry_model_impl_compat():
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"""补丁 9：registry.py —— vllm main 与 transformers v4 兼容
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问题：vllm main 的 ModelRegistry 大量访问 model_config.model_impl，
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该属性是 vllm ModelConfig 的字段（默认 "auto"），但 inspect 链路传入的
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有时是 transformers config 对象（如 Qwen2VLConfig），v4 没有此属性 →
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AttributeError → "Model architectures [...] failed to be inspected"。
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同时 _try_resolve_transformers 末尾调用 model_config._get_transformers_backend_cls()，
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v4 的 config 也没有该方法。
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根因：mineru[core] 锁定 transformers<5.0.0（v4），vllm main 期望 v5。
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本补丁把所有 model_config.model_impl 访问改成 getattr 兜底（缺属性时当 "auto"，
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走 fallback 分支匹配 vllm 注册表），并给 _get_transformers_backend_cls 加兜底。
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采用逐处 getattr 替换，不依赖方法定位（比方法注入更可靠）。
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"""
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f = os.path.join(VLLM_DIR, 'model_executor', 'models', 'registry.py')
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if not os.path.exists(f):
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print('Patch 9: registry.py not found; skipping.')
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return
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c = open(f).read()
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if '# mineru-rocm: model_impl v4 compat' in c:
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print('Patch 9: already applied (model_impl v4 compat present).')
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return
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# 把 model_config.model_impl 访问替换为 getattr 兜底
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before = c.count('model_config.model_impl')
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c2 = c.replace(
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'model_config.model_impl',
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'getattr(model_config, "model_impl", "auto")'
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)
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replaced = before - c2.count('model_config.model_impl')
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# _get_transformers_backend_cls 兜底：v4 无此方法
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c2 = c2.replace(
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'return model_config._get_transformers_backend_cls()',
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'return getattr(model_config, "_get_transformers_backend_cls", lambda: None)()'
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)
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# 写入幂等标记（注释，便于重入检测）
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c2 = '# mineru-rocm: model_impl v4 compat\n' + c2
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if c2 != c:
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open(f, 'w').write(c2)
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print(f'Patch 9: registry.py model_impl v4 compat applied '
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f'({replaced} access(es) wrapped).')
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else:
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print('Patch 9: no changes applied (pattern not found).')
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def ensure_vllm_dist_info():
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"""为 /opt/vllm 源码导入创建最小 dist-info。
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vLLM 平台检测会通过 importlib.metadata 查询 vllm 分发元数据/entry points。
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如果只靠 PYTHONPATH 导入源码，没有 dist-info，就会出现：
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"The vLLM package was not found..."，并可能得到 UnspecifiedPlatform。
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注意：仅当 rocm_platform_plugin 函数实际存在时才注册 entry_point，
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否则 vLLM 会因 AttributeError 回退到 UnspecifiedPlatform。
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"""
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try:
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import vllm
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except Exception:
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return
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version = getattr(vllm, '__version__', '0.1.dev1') or '0.1.dev1'
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# PEP440 合法性校验：vllm 在 _version.py 缺失时会回退到 'dev'，
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# 这不是合法 PEP440，会触发下游 packaging.version.parse 抛 InvalidVersion
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# （例如 mineru.backend.vlm.utils:set_default_gpu_memory_utilization）。
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try:
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from packaging.version import Version as _PEP440Version
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_PEP440Version(version)
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except Exception:
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print(f'WARNING: vllm.__version__={version!r} is not PEP440-compliant; '
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f'falling back to "0.11.0" for dist-info.')
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version = '0.11.0'
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try:
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vllm.__version__ = version
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except Exception:
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pass
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site_packages = sysconfig.get_paths().get('purelib')
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if not site_packages:
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return
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dist_info = os.path.join(site_packages, f'vllm-{version}.dist-info')
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os.makedirs(dist_info, exist_ok=True)
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metadata = os.path.join(dist_info, 'METADATA')
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if not os.path.exists(metadata):
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with open(metadata, 'w') as fp:
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fp.write(
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'Metadata-Version: 2.1\n'
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'Name: vllm\n'
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f'Version: {version}\n'
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'Summary: vLLM source tree mounted at /opt/vllm\n'
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)
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with open(os.path.join(dist_info, 'top_level.txt'), 'w') as fp:
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fp.write('vllm\n')
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with open(os.path.join(dist_info, 'INSTALLER'), 'w') as fp:
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fp.write('mineru-rocm-runtime\n')
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# 仅当 rocm_platform_plugin 实际存在时才注册，避免 vLLM 加载失败
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entry_points = ''
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try:
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from vllm.platforms.rocm import rocm_platform_plugin # noqa: F401
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entry_points += (
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'[vllm.platform_plugins]\n'
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'rocm = vllm.platforms.rocm:rocm_platform_plugin\n'
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)
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print('rocm_platform_plugin found, registering entry point.')
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except (ImportError, AttributeError, SystemExit, KeyboardInterrupt):
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print('WARNING: rocm_platform_plugin not found in vllm.platforms.rocm; '
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'skipping entry_point registration.')
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except BaseException as e:
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print(f'WARNING: rocm_platform_plugin check failed ({type(e).__name__}: {e}); '
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'skipping entry_point registration.')
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with open(os.path.join(dist_info, 'entry_points.txt'), 'w') as fp:
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fp.write(entry_points)
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with open(os.path.join(dist_info, 'RECORD'), 'w') as fp:
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fp.write('')
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print(f'vllm dist-info ensured: {dist_info}')
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def ensure_vllm_installed():
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"""确保 vLLM Python 包在当前虚拟环境中可导入。
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某些 MinerU 依赖安装流程后，site-packages 中可能缺少 vLLM 分发元数据，但
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/opt/vllm 源码仍在。此时直接把 /opt/vllm 加入 PYTHONPATH/sys.path 再导入，
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避免 editable 安装触发 pyproject 元数据校验失败。
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"""
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try:
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import vllm # noqa: F401
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return
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except ModuleNotFoundError as exc:
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if exc.name != 'vllm':
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raise
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if not os.path.isdir(VLLM_SRC_DIR):
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raise ModuleNotFoundError(
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'vllm is not installed and /opt/vllm source directory is missing'
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)
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print('vllm package missing; trying PYTHONPATH fallback with /opt/vllm...')
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current = os.environ.get('PYTHONPATH', '')
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paths = [p for p in current.split(':') if p]
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if VLLM_SRC_DIR not in paths:
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os.environ['PYTHONPATH'] = f"{VLLM_SRC_DIR}:{current}" if current else VLLM_SRC_DIR
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if VLLM_SRC_DIR not in sys.path:
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sys.path.insert(0, VLLM_SRC_DIR)
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import vllm # noqa: F401
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print('vllm import recovered via PYTHONPATH fallback.')
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def install_sitecustomize_force_rocm():
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"""已弃用：sitecustomize 时机问题（current_platform 是 lazy init，
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sitecustomize 触发提前 resolve 时补丁 6 尚未应用）导致兜底无效。
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保留空壳仅为兼容旧调用，实际不做任何事。
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平台检测统一由补丁 6（rocm_platform_plugin torch.version.hip 兜底）解决。
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"""
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# 清理历史遗留的 sitecustomize 片段（幂等）
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site_packages = sysconfig.get_paths().get('purelib')
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if site_packages:
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sc = os.path.join(site_packages, 'sitecustomize.py')
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marker = '# mineru-rocm: force rocm platform'
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if os.path.exists(sc) and marker in open(sc).read():
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# 重写文件，移除我们的片段
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c = open(sc).read()
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# 片段从 marker 行开始到文件末尾
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idx = c.find(marker)
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# 回退到 marker 前的换行
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while idx > 0 and c[idx - 1] == '\n':
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idx -= 1
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c = c[:idx].rstrip() + '\n'
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open(sc, 'w').write(c)
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print('Patch 8: removed legacy sitecustomize force-rocm snippet.')
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def main():
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patch6_init_platform_fallback()
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patch7_rocm_break_import_cycle()
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patch9_registry_model_impl_compat()
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install_sitecustomize_force_rocm()
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try:
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ensure_vllm_installed()
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ensure_vllm_dist_info()
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import vllm
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from vllm.platforms import current_platform
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platform_name = type(current_platform).__name__
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print(f'vllm runtime import OK: {vllm.__version__}, platform={platform_name}')
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if platform_name == 'UnspecifiedPlatform':
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print(
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'WARNING: vLLM platform detection returned UnspecifiedPlatform. '
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'This is expected on containers without GPU access (router/gradio). '
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'On worker containers, check: amdsmi, /dev/kfd, /dev/dri, '
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'and vllm.platform_plugins metadata.'
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)
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except Exception:
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print('WARNING: vllm runtime import failed after platform patches (non-fatal):')
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traceback.print_exc()
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print('vllm platform patches done.')
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if __name__ == '__main__':
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main()
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