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enginex-iluvatar-bi100-vllm…/patch_vllm_load_progress.py
Sun Ruoxi a53f6a02d0
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add log in loading models
Signed-off-by: Sun Ruoxi <sunruoxi@4paradigm.com>
2026-08-18 10:35:53 +08:00

182 lines
7.9 KiB
Python

from pathlib import Path
SITE_PACKAGES = Path("/usr/local/corex/lib64/python3/dist-packages/vllm")
LOADER = SITE_PACKAGES / "model_executor/model_loader/loader.py"
WEIGHT_UTILS = SITE_PACKAGES / "model_executor/model_loader/weight_utils.py"
def replace_once(path: Path, old: str, new: str, description: str) -> None:
source = path.read_text()
count = source.count(old)
if count != 1:
raise RuntimeError(
f"Refusing to patch {description}: expected one match in {path}, got {count}"
)
path.write_text(source.replace(old, new, 1))
print(f"[vllm-load-progress-patch] patched {description}", flush=True)
replace_once(
WEIGHT_UTILS,
"import tempfile\n",
"import tempfile\nimport time\n",
"weight_utils time import",
)
replace_once(
WEIGHT_UTILS,
''' for st_file in tqdm(
hf_weights_files,
desc="Loading safetensors checkpoint shards",
disable=not enable_tqdm,
bar_format=_BAR_FORMAT,
):
with safe_open(st_file, framework="pt") as f:
for name in f.keys(): # noqa: SIM118
param = f.get_tensor(name)
yield name, param
''',
''' progress_interval = max(
1, int(os.getenv("VLLM_LOAD_PROGRESS_INTERVAL_SECONDS", "60")))
tensor_interval = max(
1, int(os.getenv("VLLM_LOAD_PROGRESS_TENSOR_INTERVAL", "50")))
progress_started = time.monotonic()
last_progress_log = progress_started
loaded_tensors = 0
loaded_bytes = 0
total_files = len(hf_weights_files)
for file_index, st_file in enumerate(tqdm(
hf_weights_files,
desc="Loading safetensors checkpoint shards",
disable=not enable_tqdm,
bar_format=_BAR_FORMAT,
), start=1):
if enable_tqdm:
logger.info(
"[VLLM_LOAD_PROGRESS] phase=load_weights status=file_start "
"file=%s file_index=%d total_files=%d",
os.path.basename(st_file), file_index, total_files)
with safe_open(st_file, framework="pt") as f:
for name in f.keys(): # noqa: SIM118
param = f.get_tensor(name)
param_bytes = param.numel() * param.element_size()
yield name, param
# The generator resumes only after model.load_weights consumed
# this tensor, so this records completed rather than queued work.
loaded_tensors += 1
loaded_bytes += param_bytes
now = time.monotonic()
if enable_tqdm and (
loaded_tensors % tensor_interval == 0
or now - last_progress_log >= progress_interval):
logger.info(
"[VLLM_LOAD_PROGRESS] phase=load_weights status=progress "
"file=%s file_index=%d total_files=%d tensors=%d "
"loaded_gib=%.2f elapsed_seconds=%.1f last_tensor=%s",
os.path.basename(st_file), file_index, total_files,
loaded_tensors, loaded_bytes / 1024**3,
now - progress_started, name)
last_progress_log = now
if enable_tqdm:
logger.info(
"[VLLM_LOAD_PROGRESS] phase=load_weights status=file_done "
"file=%s file_index=%d total_files=%d tensors=%d "
"loaded_gib=%.2f elapsed_seconds=%.1f",
os.path.basename(st_file), file_index, total_files,
loaded_tensors, loaded_bytes / 1024**3,
time.monotonic() - progress_started)
''',
"safetensors semantic progress",
)
replace_once(
LOADER,
"import os\n",
"import os\nimport time\n",
"loader time import",
)
replace_once(
LOADER,
''' with set_default_torch_dtype(model_config.dtype):
with target_device:
model = _initialize_model(model_config, self.load_config,
lora_config, cache_config,
scheduler_config)
model.load_weights(self._get_all_weights(model_config, model))
for _, module in model.named_modules():
quant_method = getattr(module, "quant_method", None)
if quant_method is not None:
# When quant methods need to process weights after loading
# (for repacking, quantizing, etc), they expect parameters
# to be on the global target device. This scope is for the
# case where cpu offloading is used, where we will move the
# parameters onto device for processing and back off after.
with device_loading_context(module, target_device):
quant_method.process_weights_after_loading(module)
return model.eval()
''',
''' with set_default_torch_dtype(model_config.dtype):
phase_started = time.monotonic()
logger.info(
"[VLLM_LOAD_PROGRESS] phase=initialize_model status=start model=%s",
model_config.model)
with target_device:
model = _initialize_model(model_config, self.load_config,
lora_config, cache_config,
scheduler_config)
logger.info(
"[VLLM_LOAD_PROGRESS] phase=initialize_model status=done "
"elapsed_seconds=%.1f", time.monotonic() - phase_started)
phase_started = time.monotonic()
logger.info("[VLLM_LOAD_PROGRESS] phase=load_weights status=start")
model.load_weights(self._get_all_weights(model_config, model))
logger.info(
"[VLLM_LOAD_PROGRESS] phase=load_weights status=done "
"elapsed_seconds=%.1f", time.monotonic() - phase_started)
quant_modules = [
(name, module, getattr(module, "quant_method", None))
for name, module in model.named_modules()
if getattr(module, "quant_method", None) is not None
]
phase_started = time.monotonic()
last_progress_log = phase_started
progress_interval = max(
1, int(os.getenv("VLLM_LOAD_PROGRESS_INTERVAL_SECONDS", "60")))
logger.info(
"[VLLM_LOAD_PROGRESS] phase=post_process_weights status=start "
"total_modules=%d", len(quant_modules))
for module_index, (name, module, quant_method) in enumerate(
quant_modules, start=1):
# When quant methods need to process weights after loading
# (for repacking, quantizing, etc), they expect parameters
# to be on the global target device.
with device_loading_context(module, target_device):
quant_method.process_weights_after_loading(module)
now = time.monotonic()
if (now - last_progress_log >= progress_interval
or module_index == len(quant_modules)):
logger.info(
"[VLLM_LOAD_PROGRESS] phase=post_process_weights "
"status=progress modules=%d total_modules=%d "
"elapsed_seconds=%.1f last_module=%s",
module_index, len(quant_modules),
now - phase_started, name)
last_progress_log = now
logger.info(
"[VLLM_LOAD_PROGRESS] phase=post_process_weights status=done "
"total_modules=%d elapsed_seconds=%.1f",
len(quant_modules), time.monotonic() - phase_started)
logger.info("[VLLM_LOAD_PROGRESS] phase=load_model status=done")
return model.eval()
''',
"default model loader phase and quantization progress",
)
print("[vllm-load-progress-patch] all patches applied", flush=True)