Files
project_6/vllm/core/block/utils.py
dylanyunlon ef6abf3dc7 [DEPLOY] Complete submission: baseline + all optimizations
Adds ALL files needed for Dockerfile build:
  - qwen3_6_scripts/ (baseline patches + our optimizations)
  - vllm/ (full vllm package)
  - paged_attention_v2_pytorch.py (V2 with single-bmm optimization)
  - Dockerfile + computility-run.yaml

Our optimizations vs baseline:
  1. paged_attn.py: pre-gathered context KV (eliminates 194 gather calls),
     Triton try/fallback, V2 heuristic, threshold 32K→64K
  2. paged_attention_v2_pytorch.py: fills NotImplementedError,
     single-bmm Phase 1 (195 launches → 3)
  3. patch_enable_triton.py: HAS_TRITON=True with safety fallback
  4. patch_triton_tuning.py: BLOCK=64, NUM_WARPS=4 for BI-V100
  5. computility-run.yaml: gpu-memory-utilization 0.9→0.95,
     max-num-batched-tokens 8192→16384

This repo can now be submitted to dev.modelhub.org.cn as-is.
2026-07-30 16:06:20 +00:00

49 lines
1.6 KiB
Python

"""Block manager utils."""
from vllm.sequence import SequenceGroup
from vllm.utils import (STR_NOT_IMPL_ENC_DEC_PREFIX_CACHE,
STR_NOT_IMPL_ENC_DEC_SWA)
def _get_block_mgr_sliding_window_attr(block_mgr):
'''
BlockManagerV1 and BlockManagerV2 have slightly different
members related to sliding window attention (SWA). This
function extracts the appropriate member to use for determining
whether SWA is enabled.
Arguments:
* block_mgr: BlockManagerV1 or BlockManagerV2 instance
'''
if hasattr(block_mgr, 'block_sliding_window'):
return block_mgr.block_sliding_window
if hasattr(block_mgr, 'max_block_sliding_window'):
return block_mgr.max_block_sliding_window
raise AttributeError("Block manager instance has neither " + \
"block_sliding_window nor " + \
"max_block_sliding_window attributes.")
def check_no_caching_or_swa_for_blockmgr_encdec(
block_mgr, seq_group: SequenceGroup) -> None:
'''
Enforce that prefix caching & sliding-window attention (SWA)
are currently unsupported *specifically* for encoder/decoder models.
Raises NotImplementedError if unsupported scenario is detected.
Arguments:
* block_mgr: BlockSpaceManager instance
* seq_group: SequenceGroup passed to block_mgr
'''
if seq_group.is_encoder_decoder():
if _get_block_mgr_sliding_window_attr(block_mgr) is not None:
raise NotImplementedError(STR_NOT_IMPL_ENC_DEC_SWA)
if block_mgr.enable_caching:
raise NotImplementedError(STR_NOT_IMPL_ENC_DEC_PREFIX_CACHE)