Files
project_6/vllm/triton_utils/custom_cache_manager.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

54 lines
2.2 KiB
Python

import os
from triton.runtime.cache import (FileCacheManager, default_cache_dir,
default_dump_dir, default_override_dir)
from vllm.logger import init_logger
logger = init_logger(__name__)
def maybe_set_triton_cache_manager() -> None:
"""Set environment variable to tell Triton to use a
custom cache manager"""
cache_manger = os.environ.get("TRITON_CACHE_MANAGER", None)
if cache_manger is None:
manager = "vllm.triton_utils.custom_cache_manager:CustomCacheManager"
logger.info("Setting Triton cache manager to: %s", manager)
os.environ["TRITON_CACHE_MANAGER"] = manager
class CustomCacheManager(FileCacheManager):
"""Re-implements Triton's cache manager, ensuring that a
unique cache directory is created for each process. This is
needed to avoid collisions when running with tp>1 and
using multi-processing as the distributed backend.
Note this issue was fixed by triton-lang/triton/pull/4295,
but the fix is not yet included in triton==v3.0.0. However,
it should be included in the subsequent version.
"""
def __init__(self, key, override=False, dump=False):
self.key = key
self.lock_path = None
if dump:
self.cache_dir = default_dump_dir()
self.cache_dir = os.path.join(self.cache_dir, self.key)
self.lock_path = os.path.join(self.cache_dir, "lock")
os.makedirs(self.cache_dir, exist_ok=True)
elif override:
self.cache_dir = default_override_dir()
self.cache_dir = os.path.join(self.cache_dir, self.key)
else:
# create cache directory if it doesn't exist
self.cache_dir = os.getenv("TRITON_CACHE_DIR",
"").strip() or default_cache_dir()
if self.cache_dir:
self.cache_dir = f"{self.cache_dir}_{os.getpid()}"
self.cache_dir = os.path.join(self.cache_dir, self.key)
self.lock_path = os.path.join(self.cache_dir, "lock")
os.makedirs(self.cache_dir, exist_ok=True)
else:
raise RuntimeError("Could not create or locate cache dir")