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Download code/pusula_dense.py from cihatyldz/pusula-tr-robustness: direct link, hf CLI and curl.
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https://huggingface.co/datasets/cihatyldz/pusula-tr-robustness/resolve/main/code/pusula_dense.py
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curl -L -o pusula_dense.py https://huggingface.co/datasets/cihatyldz/pusula-tr-robustness/resolve/main/code/pusula_dense.py
7.01 kB
| """ | |
| pusula_dense.py — Embedding modelleri icin retriever + calistirma/kaydetme yardimcilari. | |
| Prompt'lar ACIKCA cozumlenir (spec > modelin kendi prompt'lari > bos) ve her zaman encode(prompt=...) ile verilir; | |
| sentence-transformers'in varsayilana sessizce donmesine izin verilmez. Benzerlik numpy ile hesaplanir. | |
| """ | |
| import gc | |
| import hashlib | |
| import json | |
| import os | |
| import time | |
| from dataclasses import asdict, dataclass | |
| import numpy as np | |
| QUERY_PROMPT_KEYS = ["query"] | |
| DOC_PROMPT_KEYS = ["document", "passage", "corpus"] # sentence-transformers ile ayni sira | |
| class ModelSpec: | |
| model_id: str | |
| short: str | |
| params_m: int | |
| tier: str = "small" # "small" (T4) | "large" (>=30 GB GPU) | |
| query_prompt: str | None = None # None → modelin kendi prompt'u, o da yoksa "" | |
| doc_prompt: str | None = None | |
| trust_remote_code: bool = False | |
| max_seq_length: int = 512 | |
| batch_size: int | None = None # None → parametre sayisina gore | |
| revision: str | None = None # model reposunun commit hash'i; dis katkilarda ZORUNLU tutulur | |
| def resolve_prompts(spec, model_prompts): | |
| mp = model_prompts or {} | |
| q = spec.query_prompt if spec.query_prompt is not None else next((mp[k] for k in QUERY_PROMPT_KEYS if k in mp), "") | |
| d = spec.doc_prompt if spec.doc_prompt is not None else next((mp[k] for k in DOC_PROMPT_KEYS if k in mp), "") | |
| return q or "", d or "" | |
| def auto_batch_size(spec): | |
| if spec.batch_size: | |
| return spec.batch_size | |
| return 128 if spec.params_m <= 150 else 64 if spec.params_m <= 600 else 16 if spec.params_m <= 4500 else 8 | |
| def select_dtype(torch, device="cuda"): | |
| """bf16 yalnizca DONANIMDA destekleniyorsa (compute capability >= 8.0: A100, L4, H100). | |
| T4 (7.5) icin is_bf16_supported() True donebilir ama bf16 emule edilir ve cok yavastir → fp16.""" | |
| if device != "cuda" or not torch.cuda.is_available(): | |
| return torch.float32 | |
| major, _ = torch.cuda.get_device_capability(0) | |
| return torch.bfloat16 if major >= 8 else torch.float16 | |
| def load_sentence_transformer(spec, device="cuda"): | |
| """Gercek model yukleme (Colab). transformers surumune gore dogru dtype argumani secilir.""" | |
| import torch | |
| import transformers | |
| from sentence_transformers import SentenceTransformer | |
| dtype = select_dtype(torch, device) | |
| dtype_key = "dtype" if int(transformers.__version__.split(".")[0]) >= 5 else "torch_dtype" | |
| extra = {"revision": spec.revision} if spec.revision else {} | |
| model = SentenceTransformer(spec.model_id, device=device, trust_remote_code=spec.trust_remote_code, | |
| model_kwargs={dtype_key: dtype}, **extra) | |
| model.max_seq_length = min(spec.max_seq_length, model.max_seq_length or spec.max_seq_length) | |
| return model, str(dtype).replace("torch.", "") | |
| class DenseRetriever: | |
| def __init__(self, spec, model, dtype_name="?"): | |
| self.spec, self.model, self.dtype_name = spec, model, dtype_name | |
| self.name = spec.short | |
| self.query_prompt, self.doc_prompt = resolve_prompts(spec, getattr(model, "prompts", {})) | |
| self.batch_size = auto_batch_size(spec) | |
| def _encode(self, texts, prompt): | |
| """Bellek yetmezse batch'i yariya indirip AYNI metinleri yeniden dener (8B'yi yarida kaybetmemek icin).""" | |
| while True: | |
| try: | |
| emb = self.model.encode(list(texts), prompt=prompt, batch_size=self.batch_size, | |
| normalize_embeddings=True, convert_to_numpy=True, show_progress_bar=False) | |
| return np.asarray(emb, dtype=np.float32) | |
| except Exception as e: | |
| if not is_oom_error(e) or self.batch_size <= 1: | |
| raise | |
| self.batch_size = max(1, self.batch_size // 2) | |
| print(f" ⚠️ GPU belleği yetmedi → batch {self.batch_size} ile yeniden deneniyor") | |
| free_gpu() | |
| def index(self, corpus): | |
| self.doc_ids = list(corpus) | |
| self.D = self._encode([corpus[d] for d in self.doc_ids], self.doc_prompt) | |
| return self | |
| def search(self, queries, k=100, chunk=512): | |
| qids = list(queries) | |
| Q = self._encode([queries[q] for q in qids], self.query_prompt) | |
| run, kk = {}, min(k, len(self.doc_ids)) | |
| for s in range(0, len(qids), chunk): | |
| S = Q[s:s + chunk] @ self.D.T | |
| top = np.argpartition(-S, kk - 1, axis=1)[:, :kk] | |
| for i, q in enumerate(qids[s:s + chunk]): | |
| run[q] = {self.doc_ids[j]: float(S[i, j]) for j in top[i]} | |
| return run | |
| def free_gpu(*objs): | |
| """Temizlik ASLA yeni hata uretmemeli: bozuk CUDA baglaminda empty_cache de patlar.""" | |
| for o in objs: | |
| del o | |
| gc.collect() | |
| try: | |
| import torch | |
| if torch.cuda.is_available(): | |
| torch.cuda.empty_cache() | |
| except Exception: | |
| pass | |
| FATAL_CUDA_MARKERS = ("device-side assert", "cudaErrorAssert", "illegal memory access", "unspecified launch failure") | |
| def is_oom_error(exc): | |
| return "OutOfMemory" in type(exc).__name__ or "out of memory" in str(exc).lower() | |
| def is_fatal_cuda_error(exc): | |
| """GPU baglamini kalici bozan hatalar: ayni Python surecinde baska CUDA islemi yapilamaz.""" | |
| text = f"{type(exc).__name__}: {exc}" | |
| return any(m in text for m in FATAL_CUDA_MARKERS) | |
| # ═══ Parmak izi + sonuc kaydi: farkli oturumlardan gelen sonuclar ancak ayni benchmark'taysa birlesir ═══ | |
| def benchmark_fingerprint(sets, pert_queries): | |
| h = hashlib.sha256() | |
| for name in sorted(sets): | |
| rs = sets[name] | |
| h.update(name.encode()) | |
| for d in sorted(rs.corpus): | |
| h.update(f"D|{d}|{rs.corpus[d]}".encode()) | |
| for q in sorted(rs.qrels): | |
| for d, s in sorted(rs.qrels[q].items()): | |
| h.update(f"R|{q}|{d}|{s}".encode()) | |
| for p in sorted(pert_queries[name]): | |
| for q, t in sorted(pert_queries[name][p].items()): | |
| h.update(f"Q|{p}|{q}|{t}".encode()) | |
| return h.hexdigest()[:16] | |
| def save_result(path, spec, fingerprint, per_query, prompts, dtype_name, seconds, error=None): | |
| os.makedirs(os.path.dirname(path) or ".", exist_ok=True) | |
| payload = {"spec": asdict(spec), "fingerprint": fingerprint, "prompts": prompts, "dtype": dtype_name, | |
| "seconds": seconds, "error": error, "per_query": per_query, "saved_at": time.strftime("%Y-%m-%d %H:%M")} | |
| with open(path, "w", encoding="utf-8") as f: | |
| json.dump(payload, f, ensure_ascii=False) | |
| def load_results(paths, fingerprint): | |
| ok, rejected = {}, [] | |
| for p in paths: | |
| with open(p, encoding="utf-8") as f: | |
| r = json.load(f) | |
| if r.get("fingerprint") != fingerprint: | |
| rejected.append((os.path.basename(p), r.get("fingerprint"))) | |
| elif r.get("error"): | |
| rejected.append((os.path.basename(p), "hata: " + r["error"][:80])) | |
| else: | |
| ok[r["spec"]["short"]] = r | |
| return ok, rejected | |