Files
AstrAI/astrai/model/components/__init__.py
T
ViperEkura 3067a8e1a6 feat: unify attention backend with multi-dim mask support
- Add attention() functional entry delegating to active backend
- GQA/MLA forward calls attention() instead of inline cache/SDPA
- CUDA kernels support 2D/3D/4D mask via mask_h_stride field
- CudaBackend.fwd_decode builds 2D padding mask for mixed seq_lens
- KVCache.max_len precomputed in bind_tasks to avoid GPU sync
- batch==1 decode short-circuits mask=None
- Split tests into conftest, test_backend, test_backend_equivalence, test_kernel_mask
- 440 tests pass, L20 decode 1.44-1.60x speedup vs torch native
2026-07-30 20:38:34 +08:00

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Python

from astrai.model.components.attention import GQA, MLA
from astrai.model.components.decoder_block import DecoderBlock
from astrai.model.components.embedding import Embedding
from astrai.model.components.linear import Linear
from astrai.model.components.mlp import MLP
from astrai.model.components.norm import RMSNorm
from astrai.model.components.rope import (
RotaryEmbedding,
apply_rotary_emb,
get_rotary_emb,
)
__all__ = [
"Linear",
"RMSNorm",
"MLP",
"Embedding",
"GQA",
"MLA",
"DecoderBlock",
"RotaryEmbedding",
"apply_rotary_emb",
"get_rotary_emb",
]