qwen3-int8
Collection
w8a8-int8 quants for ampere • 9 items • Updated • 1
How to use nytopop/Qwen3-30B-A3B.w8a8 with Transformers:
# Use a pipeline as a high-level helper
from transformers import pipeline
pipe = pipeline("text-generation", model="nytopop/Qwen3-30B-A3B.w8a8")
messages = [
{"role": "user", "content": "Who are you?"},
]
pipe(messages) # Load model directly
from transformers import AutoTokenizer, AutoModelForCausalLM
tokenizer = AutoTokenizer.from_pretrained("nytopop/Qwen3-30B-A3B.w8a8")
model = AutoModelForCausalLM.from_pretrained("nytopop/Qwen3-30B-A3B.w8a8")
messages = [
{"role": "user", "content": "Who are you?"},
]
inputs = tokenizer.apply_chat_template(
messages,
add_generation_prompt=True,
tokenize=True,
return_dict=True,
return_tensors="pt",
).to(model.device)
outputs = model.generate(**inputs, max_new_tokens=40)
print(tokenizer.decode(outputs[0][inputs["input_ids"].shape[-1]:]))How to use nytopop/Qwen3-30B-A3B.w8a8 with vLLM:
# Install vLLM from pip:
pip install vllm
# Start the vLLM server:
vllm serve "nytopop/Qwen3-30B-A3B.w8a8"
# Call the server using curl (OpenAI-compatible API):
curl -X POST "http://localhost:8000/v1/chat/completions" \
-H "Content-Type: application/json" \
--data '{
"model": "nytopop/Qwen3-30B-A3B.w8a8",
"messages": [
{
"role": "user",
"content": "What is the capital of France?"
}
]
}'docker model run hf.co/nytopop/Qwen3-30B-A3B.w8a8
How to use nytopop/Qwen3-30B-A3B.w8a8 with SGLang:
# Install SGLang from pip:
pip install sglang
# Start the SGLang server:
python3 -m sglang.launch_server \
--model-path "nytopop/Qwen3-30B-A3B.w8a8" \
--host 0.0.0.0 \
--port 30000
# Call the server using curl (OpenAI-compatible API):
curl -X POST "http://localhost:30000/v1/chat/completions" \
-H "Content-Type: application/json" \
--data '{
"model": "nytopop/Qwen3-30B-A3B.w8a8",
"messages": [
{
"role": "user",
"content": "What is the capital of France?"
}
]
}'docker run --gpus all \
--shm-size 32g \
-p 30000:30000 \
-v ~/.cache/huggingface:/root/.cache/huggingface \
--env "HF_TOKEN=<secret>" \
--ipc=host \
lmsysorg/sglang:latest \
python3 -m sglang.launch_server \
--model-path "nytopop/Qwen3-30B-A3B.w8a8" \
--host 0.0.0.0 \
--port 30000
# Call the server using curl (OpenAI-compatible API):
curl -X POST "http://localhost:30000/v1/chat/completions" \
-H "Content-Type: application/json" \
--data '{
"model": "nytopop/Qwen3-30B-A3B.w8a8",
"messages": [
{
"role": "user",
"content": "What is the capital of France?"
}
]
}'How to use nytopop/Qwen3-30B-A3B.w8a8 with Docker Model Runner:
docker model run hf.co/nytopop/Qwen3-30B-A3B.w8a8
Int8 quant for optimized performance on Ampere.
Currently, upstream sglang doesn't load this quant correctly due to a few minor issues. Until upstream is fixed, a working fork is available at https://github.com/nytopop/sglang/tree/qwen-30b-a3b:
uv venv --python 3.12
# use patched sglang from git
uv pip install "git+https://github.com/nytopop/sglang.git@qwen-30b-a3b#subdirectory=python[all]" --find-links https://flashinfer.ai/whl/cu124/torch2.5/flashinfer-python
# run
uv run python -m sglang.launch_server --model-path nytopop/Qwen3-30B-A3B.w8a8 --quantization w8a8_int8 --reasoning-parser qwen3
from transformers import AutoModelForCausalLM
from llmcompressor import oneshot
from llmcompressor.modifiers.quantization import QuantizationModifier
from llmcompressor.transformers.compression.helpers import calculate_offload_device_map
model_id = "Qwen/Qwen3-30B-A3B"
model_out = model_id.split("/")[1] + ".w8a8"
device_map = calculate_offload_device_map(
model_id, reserve_for_hessians=False, num_gpus=1, torch_dtype="bfloat16"
)
for k, v in device_map.items():
if v == 'disk':
device_map[k] = 'cpu'
model = AutoModelForCausalLM.from_pretrained(
model_id,
device_map=device_map,
torch_dtype="bfloat16",
)
recipe = QuantizationModifier(targets="Linear", scheme="W8A8", ignore=["lm_head", "re:.*mlp.gate$"])
oneshot(model=model, recipe=recipe, output_dir=model_out)