mirror of
https://github.com/NVIDIA/TensorRT-LLM.git
synced 2026-01-14 06:27:45 +08:00
d879430b04
* Update TensorRT-LLM --------- Co-authored-by: Shixiaowei02 <39303645+Shixiaowei02@users.noreply.github.com>
88 lines
2.6 KiB
Python
88 lines
2.6 KiB
Python
import json
|
|
import os
|
|
import time
|
|
from pathlib import Path
|
|
from typing import Union
|
|
|
|
import tensorrt as trt
|
|
|
|
from ..builder import BuildConfig
|
|
from ..logger import logger
|
|
from ..models.modeling_utils import PretrainedConfig
|
|
|
|
|
|
def serialize_engine(engine, path):
|
|
logger.info(f'Serializing engine to {path}...')
|
|
tik = time.time()
|
|
with open(path, 'wb') as f:
|
|
f.write(engine)
|
|
tok = time.time()
|
|
t = time.strftime('%H:%M:%S', time.gmtime(tok - tik))
|
|
logger.info(f'Engine serialized. Total time: {t}')
|
|
|
|
|
|
class EngineConfig:
|
|
|
|
def __init__(self, pretrained_config: 'PretrainedConfig',
|
|
build_config: 'BuildConfig', version: str):
|
|
self.pretrained_config = pretrained_config
|
|
self.build_config = build_config
|
|
self.version = version
|
|
|
|
@classmethod
|
|
def from_json_file(cls, config_file):
|
|
with open(config_file) as f:
|
|
config = json.load(f)
|
|
return cls(PretrainedConfig.from_dict(config['pretrained_config']),
|
|
BuildConfig.from_dict(config['build_config']),
|
|
config['version'])
|
|
|
|
def to_dict(self):
|
|
return {
|
|
'version': self.version,
|
|
'pretrained_config': self.pretrained_config.to_dict(),
|
|
'build_config': self.build_config.to_dict(),
|
|
}
|
|
|
|
|
|
class Engine:
|
|
|
|
def __init__(self, config: EngineConfig, engine: trt.IHostMemory):
|
|
self.config = config
|
|
self.engine = engine
|
|
|
|
def save(self, engine_dir: str):
|
|
if self.config.pretrained_config.mapping.rank == 0:
|
|
with open(os.path.join(engine_dir, 'config.json'),
|
|
"w",
|
|
encoding="utf-8") as f:
|
|
json.dump(self.config.to_dict(), f, indent=4)
|
|
serialize_engine(
|
|
self.engine,
|
|
os.path.join(
|
|
engine_dir,
|
|
f'rank{self.config.pretrained_config.mapping.rank}.engine'))
|
|
|
|
@classmethod
|
|
def from_dir(cls, engine_dir: str, rank: int = 0):
|
|
with open(os.path.join(engine_dir, f'rank{rank}.engine'), 'rb') as f:
|
|
engine_buffer = f.read()
|
|
|
|
config = EngineConfig.from_json_file(
|
|
os.path.join(engine_dir, 'config.json'))
|
|
config.pretrained_config.set_rank(rank)
|
|
|
|
return cls(config, engine_buffer)
|
|
|
|
|
|
def get_engine_version(engine_dir: str) -> Union[None, str]:
|
|
engine_dir = Path(engine_dir)
|
|
config_path = engine_dir / "config.json"
|
|
with open(config_path, 'r') as f:
|
|
config = json.load(f)
|
|
|
|
if 'version' not in config:
|
|
return None
|
|
|
|
return config['version']
|