Files
AstrAI/astrai/inference/core/__init__.py
T
ViperEkura deb2d7e127 refactor: rebuild KV cache with three-layer separation architecture
- Replace CacheView/ContiguousCache/PageCache with SGLang-inspired design: KVStorage (flat token-level NHD buffers [n_layers, size, H, D]), ReqToTokenPool (index table [req_idx, pos] -> token_slot), Allocator + PrefixCache (slot allocation with LRU and prefix sharing)
- Add KVCache as pure dataclass passed to model: k_buffer, v_buffer, req_to_token, req_pool_indices, seq_lens, out_cache_loc
- PagePool orchestrates all three layers, supports contiguous mode (pre-allocated per-request blocks, default) and paged mode (page_size=1 or >1 with dynamic allocation and prefix caching)
- Attention layers now do raw buffer indexing instead of opaque write/gather method calls on CacheView objects
- Update executor.bind_tasks signature: seq_lens list + start_pos
- Rename paged_cache -> kv_cache throughout model/ and inference/
2026-07-30 17:19:06 +08:00

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Python

"""Inference core: cache, executor, scheduler, task management."""
from astrai.inference.core.cache import (
Allocator,
KVCache,
KVStorage,
PagePool,
PrefixCache,
ReqToTokenPool,
page_hash,
)
from astrai.inference.core.executor import Executor
from astrai.inference.core.scheduler import InferenceScheduler
from astrai.inference.core.task import STOP, Task, TaskManager, TaskStatus
__all__ = [
"Allocator",
"KVCache",
"KVStorage",
"PagePool",
"PrefixCache",
"ReqToTokenPool",
"page_hash",
"Executor",
"InferenceScheduler",
"STOP",
"Task",
"TaskManager",
"TaskStatus",
]