235 lines
7.3 KiB
Python
235 lines
7.3 KiB
Python
import os
|
|
import sys
|
|
import typer
|
|
|
|
from pathlib import Path
|
|
from loguru import logger
|
|
from typing import Optional
|
|
from enum import Enum
|
|
from huggingface_hub import hf_hub_download
|
|
|
|
|
|
app = typer.Typer()
|
|
|
|
|
|
class Quantization(str, Enum):
|
|
bitsandbytes = "bitsandbytes"
|
|
bitsandbytes_nf4 = "bitsandbytes-nf4"
|
|
bitsandbytes_fp4 = "bitsandbytes-fp4"
|
|
gptq = "gptq"
|
|
|
|
|
|
class Dtype(str, Enum):
|
|
float16 = "float16"
|
|
bloat16 = "bfloat16"
|
|
|
|
|
|
@app.command()
|
|
def serve(
|
|
model_id: str,
|
|
revision: Optional[str] = None,
|
|
sharded: bool = False,
|
|
quantize: Optional[Quantization] = None,
|
|
dtype: Optional[Dtype] = None,
|
|
trust_remote_code: bool = False,
|
|
uds_path: Path = "/tmp/text-generation-server",
|
|
logger_level: str = "INFO",
|
|
json_output: bool = False,
|
|
otlp_endpoint: Optional[str] = None,
|
|
):
|
|
if sharded:
|
|
assert (
|
|
os.getenv("RANK", None) is not None
|
|
), "RANK must be set when sharded is True"
|
|
assert (
|
|
os.getenv("WORLD_SIZE", None) is not None
|
|
), "WORLD_SIZE must be set when sharded is True"
|
|
assert (
|
|
os.getenv("MASTER_ADDR", None) is not None
|
|
), "MASTER_ADDR must be set when sharded is True"
|
|
assert (
|
|
os.getenv("MASTER_PORT", None) is not None
|
|
), "MASTER_PORT must be set when sharded is True"
|
|
|
|
# Remove default handler
|
|
logger.remove()
|
|
logger.add(
|
|
sys.stdout,
|
|
format="{message}",
|
|
filter="text_generation_server",
|
|
level=logger_level,
|
|
serialize=json_output,
|
|
backtrace=True,
|
|
diagnose=False,
|
|
)
|
|
|
|
# Import here after the logger is added to log potential import exceptions
|
|
from text_generation_server import server
|
|
from text_generation_server.tracing import setup_tracing
|
|
|
|
# Setup OpenTelemetry distributed tracing
|
|
if otlp_endpoint is not None:
|
|
setup_tracing(shard=os.getenv("RANK", 0), otlp_endpoint=otlp_endpoint)
|
|
|
|
# Downgrade enum into str for easier management later on
|
|
quantize = None if quantize is None else quantize.value
|
|
dtype = None if dtype is None else dtype.value
|
|
if dtype is not None and quantize is not None:
|
|
raise RuntimeError(
|
|
"Only 1 can be set between `dtype` and `quantize`, as they both decide how goes the final model."
|
|
)
|
|
server.serve(
|
|
model_id, revision, sharded, quantize, dtype, trust_remote_code, uds_path
|
|
)
|
|
|
|
|
|
@app.command()
|
|
def download_weights(
|
|
model_id: str,
|
|
revision: Optional[str] = None,
|
|
extension: str = ".safetensors",
|
|
auto_convert: bool = True,
|
|
logger_level: str = "INFO",
|
|
json_output: bool = False,
|
|
trust_remote_code: bool = False,
|
|
):
|
|
# Remove default handler
|
|
logger.remove()
|
|
logger.add(
|
|
sys.stdout,
|
|
format="{message}",
|
|
filter="text_generation_server",
|
|
level=logger_level,
|
|
serialize=json_output,
|
|
backtrace=True,
|
|
diagnose=False,
|
|
)
|
|
|
|
# Import here after the logger is added to log potential import exceptions
|
|
from text_generation_server import utils
|
|
|
|
# Test if files were already download
|
|
try:
|
|
utils.weight_files(model_id, revision, extension)
|
|
logger.info("Files are already present on the host. " "Skipping download.")
|
|
return
|
|
# Local files not found
|
|
except (utils.LocalEntryNotFoundError, FileNotFoundError):
|
|
pass
|
|
|
|
is_local_model = (Path(model_id).exists() and Path(model_id).is_dir()) or os.getenv(
|
|
"WEIGHTS_CACHE_OVERRIDE", None
|
|
) is not None
|
|
|
|
if not is_local_model:
|
|
try:
|
|
adapter_config_filename = hf_hub_download(model_id, revision=revision, filename="adapter_config.json")
|
|
utils.download_and_unload_peft(model_id, revision, trust_remote_code=trust_remote_code)
|
|
is_local_model = True
|
|
utils.weight_files(model_id, revision, extension)
|
|
return
|
|
except (utils.LocalEntryNotFoundError, utils.EntryNotFoundError):
|
|
pass
|
|
|
|
# Try to download weights from the hub
|
|
try:
|
|
filenames = utils.weight_hub_files(model_id, revision, extension)
|
|
utils.download_weights(filenames, model_id, revision)
|
|
# Successfully downloaded weights
|
|
return
|
|
|
|
# No weights found on the hub with this extension
|
|
except utils.EntryNotFoundError as e:
|
|
# Check if we want to automatically convert to safetensors or if we can use .bin weights instead
|
|
if not extension == ".safetensors" or not auto_convert:
|
|
raise e
|
|
|
|
# Try to see if there are local pytorch weights
|
|
try:
|
|
# Get weights for a local model, a hub cached model and inside the WEIGHTS_CACHE_OVERRIDE
|
|
local_pt_files = utils.weight_files(model_id, revision, ".bin")
|
|
|
|
# No local pytorch weights
|
|
except utils.LocalEntryNotFoundError:
|
|
if extension == ".safetensors":
|
|
logger.warning(
|
|
f"No safetensors weights found for model {model_id} at revision {revision}. "
|
|
f"Downloading PyTorch weights."
|
|
)
|
|
|
|
# Try to see if there are pytorch weights on the hub
|
|
pt_filenames = utils.weight_hub_files(model_id, revision, ".bin")
|
|
# Download pytorch weights
|
|
local_pt_files = utils.download_weights(pt_filenames, model_id, revision)
|
|
|
|
if auto_convert:
|
|
logger.warning(
|
|
f"No safetensors weights found for model {model_id} at revision {revision}. "
|
|
f"Converting PyTorch weights to safetensors."
|
|
)
|
|
|
|
# Safetensors final filenames
|
|
local_st_files = [
|
|
p.parent / f"{p.stem.lstrip('pytorch_')}.safetensors"
|
|
for p in local_pt_files
|
|
]
|
|
try:
|
|
import transformers
|
|
import json
|
|
|
|
|
|
config_filename = hf_hub_download(model_id, revision=revision, filename="config.json")
|
|
with open(config_filename, "r") as f:
|
|
config = json.load(f)
|
|
architecture = config["architectures"][0]
|
|
|
|
class_ = getattr(transformers, architecture)
|
|
|
|
# Name for this varible depends on transformers version.
|
|
discard_names = getattr(class_, "_tied_weights_keys", [])
|
|
discard_names.extend(getattr(class_, "_keys_to_ignore_on_load_missing", []))
|
|
|
|
except Exception as e:
|
|
discard_names = []
|
|
# Convert pytorch weights to safetensors
|
|
utils.convert_files(local_pt_files, local_st_files, discard_names)
|
|
|
|
|
|
@app.command()
|
|
def quantize(
|
|
model_id: str,
|
|
output_dir: str,
|
|
revision: Optional[str] = None,
|
|
logger_level: str = "INFO",
|
|
json_output: bool = False,
|
|
trust_remote_code: bool = False,
|
|
upload_to_model_id: Optional[str] = None,
|
|
percdamp: float = 0.01,
|
|
act_order: bool = False,
|
|
):
|
|
if revision is None:
|
|
revision = "main"
|
|
download_weights(
|
|
model_id=model_id,
|
|
revision=revision,
|
|
logger_level=logger_level,
|
|
json_output=json_output,
|
|
)
|
|
from text_generation_server.utils.gptq.quantize import quantize
|
|
|
|
quantize(
|
|
model_id=model_id,
|
|
bits=4,
|
|
groupsize=128,
|
|
output_dir=output_dir,
|
|
revision=revision,
|
|
trust_remote_code=trust_remote_code,
|
|
upload_to_model_id=upload_to_model_id,
|
|
percdamp=percdamp,
|
|
act_order=act_order,
|
|
)
|
|
|
|
|
|
if __name__ == "__main__":
|
|
app()
|