Files
AstrAI/astrai/config/model_config.py
T
ViperEkura 0c86c89af4 refactor : align config field names with Hugging Face
- dim -> hidden_size, n_layers -> num_hidden_layers
- dim_ffn -> intermediate_size, n_heads -> num_attention_heads
- n_kv_heads -> num_key_value_heads, max_len -> max_position_embeddings
- norm_eps -> rms_norm_eps, tie_weight -> tie_word_embeddings
- update model, inference, training, scripts, tests, docs
2026-07-20 22:05:31 +08:00

83 lines
2.5 KiB
Python

from dataclasses import dataclass
from typing import Any, Dict, Optional
from astrai.config.base import BaseConfig
from astrai.factory import BaseFactory
class ConfigFactory(BaseFactory[BaseConfig]):
"""Factory that dispatches config classes by ``model_type``."""
@classmethod
def load(cls, raw: Dict[str, Any]) -> BaseConfig:
model_type = raw.get("model_type") or "autoregressive_lm"
config_cls = cls.get_component_class(model_type)
return config_cls.from_dict(raw)
@dataclass
class BaseModelConfig(BaseConfig):
"""Base config with ``model_type`` dispatch and file I/O."""
model_type: Optional[str] = None
neftune_alpha: float = 0.0
@dataclass
@ConfigFactory.register("autoregressive_lm")
class AutoRegressiveLMConfig(BaseModelConfig):
"""Configuration for autoregressive language model."""
vocab_size: Optional[int] = None
hidden_size: Optional[int] = None
num_hidden_layers: Optional[int] = None
rms_norm_eps: Optional[float] = None
intermediate_size: Optional[int] = None
tie_word_embeddings: Optional[bool] = None
max_position_embeddings: Optional[int] = None
rope_theta: Optional[float] = None
rope_scaling: Optional[dict] = None
attn_type: str = "gqa"
num_attention_heads: Optional[int] = None
num_key_value_heads: Optional[int] = None
use_qk_norm: Optional[bool] = None
use_gated_attention: Optional[bool] = None
kv_lora_rank: Optional[int] = None
qk_nope_head_dim: Optional[int] = None
qk_rope_head_dim: Optional[int] = None
ffn_type: str = "mlp"
n_routed_experts: Optional[int] = None
n_shared_experts: Optional[int] = None
n_activated_experts: Optional[int] = None
topk_method: Optional[str] = None
@dataclass
@ConfigFactory.register("embedding")
class EncoderConfig(BaseModelConfig):
"""Configuration for embedding encoder model."""
vocab_size: Optional[int] = None
hidden_size: Optional[int] = None
num_hidden_layers: Optional[int] = None
rms_norm_eps: Optional[float] = None
intermediate_size: Optional[int] = None
max_position_embeddings: Optional[int] = None
rope_theta: Optional[float] = None
rope_scaling: Optional[dict] = None
attn_type: str = "gqa"
num_attention_heads: Optional[int] = None
num_key_value_heads: Optional[int] = None
use_qk_norm: Optional[bool] = None
use_gated_attention: Optional[bool] = None
ffn_type: str = "mlp"
pooling_type: Optional[str] = None
normalize_embeddings: Optional[bool] = None