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laserbeam2045
commited on
Commit
·
9736832
1
Parent(s):
a9bf179
fix
Browse files- app.py +27 -21
- requirements.txt +0 -2
app.py
CHANGED
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@@ -9,37 +9,44 @@ from transformers import AutoTokenizer, AutoModelForCausalLM
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# 設定
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# -----------------------------------------------------------------------------
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MODEL_ID = "google/gemma-3-4b-it"
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# Hugging Face token が必要な場合は環境変数 HUGGINGFACE_TOKEN をセット
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HF_TOKEN = os.environ.get("HF_TOKEN", None)
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# -----------------------------------------------------------------------------
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#
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# -----------------------------------------------------------------------------
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# -----------------------------------------------------------------------------
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#
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# -----------------------------------------------------------------------------
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MODEL_ID,
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token=HF_TOKEN,
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trust_remote_code=True,
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torch_dtype=torch.float32,
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low_cpu_mem_usage=True
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)
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)
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model.to(device)
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# -----------------------------------------------------------------------------
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# FastAPI
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# -----------------------------------------------------------------------------
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app = FastAPI(title="Gemma3-4B-IT
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class GenerationRequest(BaseModel):
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prompt: str
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@@ -50,16 +57,15 @@ class GenerationRequest(BaseModel):
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@app.post("/generate")
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async def generate(req: GenerationRequest):
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if not req.prompt:
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raise HTTPException(status_code=400, detail="prompt は必須です。")
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#
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inputs = tokenizer(
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req.prompt,
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return_tensors="pt",
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padding=True,
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truncation=True,
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**inputs,
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max_new_tokens=req.max_new_tokens,
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temperature=req.temperature,
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@@ -67,7 +73,7 @@ async def generate(req: GenerationRequest):
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do_sample=True,
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pad_token_id=tokenizer.eos_token_id
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)
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text = tokenizer.decode(
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return {"generated_text": text}
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# -----------------------------------------------------------------------------
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# 設定
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# -----------------------------------------------------------------------------
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MODEL_ID = "google/gemma-3-4b-it"
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HF_TOKEN = os.environ.get("HF_TOKEN", None)
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DEVICE = torch.device("cpu") # 無料枠は CPU のみ
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# -----------------------------------------------------------------------------
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# トークナイザーのロード
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# -----------------------------------------------------------------------------
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tokenizer = AutoTokenizer.from_pretrained(
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MODEL_ID,
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token=HF_TOKEN,
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trust_remote_code=True
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)
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# -----------------------------------------------------------------------------
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# モデルのロード+低メモリモード
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# -----------------------------------------------------------------------------
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model = AutoModelForCausalLM.from_pretrained(
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MODEL_ID,
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token=HF_TOKEN,
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trust_remote_code=True,
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torch_dtype=torch.float32,
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low_cpu_mem_usage=True
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).to(DEVICE)
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# -----------------------------------------------------------------------------
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# 動的量子化の適用
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# -----------------------------------------------------------------------------
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# - {torch.nn.Linear} を INT8 化
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# - dtype=torch.qint8 で重みのみ量子化
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model = torch.quantization.quantize_dynamic(
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model,
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{torch.nn.Linear},
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dtype=torch.qint8
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)
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# -----------------------------------------------------------------------------
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# FastAPI サーバー定義
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# -----------------------------------------------------------------------------
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app = FastAPI(title="Gemma3-4B-IT with Dynamic Quantization")
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class GenerationRequest(BaseModel):
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prompt: str
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@app.post("/generate")
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async def generate(req: GenerationRequest):
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if not req.prompt:
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raise HTTPException(status_code=400, detail="`prompt` は必須です。")
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# トークナイズして推論
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inputs = tokenizer(
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req.prompt,
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return_tensors="pt",
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truncation=True,
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padding=True
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).to(DEVICE)
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output_ids = model.generate(
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**inputs,
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max_new_tokens=req.max_new_tokens,
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temperature=req.temperature,
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do_sample=True,
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pad_token_id=tokenizer.eos_token_id
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)
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text = tokenizer.decode(output_ids[0], skip_special_tokens=True)
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return {"generated_text": text}
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# -----------------------------------------------------------------------------
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requirements.txt
CHANGED
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@@ -2,5 +2,3 @@ fastapi
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uvicorn[standard]
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transformers>=4.50.0.dev0
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torch
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accelerate>=0.9.0
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safetensors
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uvicorn[standard]
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transformers>=4.50.0.dev0
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torch
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