AstrAI/astrai
ViperEkura 2c7a71a9c0 refactor: separate old policy and ref model in GRPO strategy
- Split single ref_model into old_model (importance sampling ratio) and ref_model (frozen KL regularizer)
- Move ref_model/old_model creation from strategy __init__ to TrainContextBuilder, pass as explicit parameters
- Remove periodic sync_ref_model + sync_interval; add sync_old_model for external rollout loop to call
- DPOStrategy also receives ref_model from builder
- Fix std to use unbiased=False (population std per GRPO paper)
- Remove redundant tests (test_grpo_kl_zero_at_init, test_grpo_no_sync_interval_param)
- Remove --grpo_sync_interval CLI arg
2026-07-14 20:03:45 +08:00
..
config fix : SFT pipeline position_ids default & doc boundary preservation 2026-07-04 15:59:11 +08:00
dataset feat: add JSONL dataset store with on-the-fly tokenization 2026-07-04 15:42:33 +08:00
extension feat: wire up paged decode CUDA kernel to Python extension 2026-07-11 18:40:49 +08:00
inference refactor: clean up inference design patterns 2026-07-05 11:41:54 +08:00
model perf: replace paged KV cache with contiguous ContiguousCache, decode all groups 2026-07-05 11:34:36 +08:00
parallel feat : add distributed checkpoint via executor checkpoint_context 2026-07-13 12:27:09 +08:00
preprocessing refactor: split mask builder by single/multi output 2026-07-08 21:18:34 +08:00
serialization feat : add distributed checkpoint via executor checkpoint_context 2026-07-13 12:27:09 +08:00
tokenize refactor : Pipeline 去除去重,ids 重命名为 sequence,泛型透传 2026-05-31 15:14:27 +08:00
trainer refactor: separate old policy and ref model in GRPO strategy 2026-07-14 20:03:45 +08:00
__init__.py chore: bump version to 1.3.9 2026-07-12 21:04:20 +08:00
factory.py fix: ForwardRef._evaluate Python 3.12 compatibility 2026-07-03 18:41:19 +08:00
protocols.py refactor: 重构训练后端为 Executor 模式 2026-05-24 20:35:44 +08:00