eaec4b9153
Signed-off-by: Thomas Parnell <tpa@zurich.ibm.com> Co-authored-by: Chih-Chieh-Yang <chih.chieh.yang@ibm.com>
54 lines
2.2 KiB
Python
54 lines
2.2 KiB
Python
import os
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from triton.runtime.cache import (FileCacheManager, default_cache_dir,
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default_dump_dir, default_override_dir)
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from vllm.logger import init_logger
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logger = init_logger(__name__)
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def maybe_set_triton_cache_manager() -> None:
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"""Set environment variable to tell Triton to use a
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custom cache manager"""
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cache_manger = os.environ.get("TRITON_CACHE_MANAGER", None)
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if cache_manger is None:
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manager = "vllm.triton_utils.custom_cache_manager:CustomCacheManager"
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logger.info("Setting Triton cache manager to: %s", manager)
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os.environ["TRITON_CACHE_MANAGER"] = manager
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class CustomCacheManager(FileCacheManager):
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"""Re-implements Triton's cache manager, ensuring that a
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unique cache directory is created for each process. This is
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needed to avoid collisions when running with tp>1 and
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using multi-processing as the distributed backend.
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Note this issue was fixed by triton-lang/triton/pull/4295,
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but the fix is not yet included in triton==v3.0.0. However,
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it should be included in the subsequent version.
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"""
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def __init__(self, key, override=False, dump=False):
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self.key = key
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self.lock_path = None
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if dump:
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self.cache_dir = default_dump_dir()
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self.cache_dir = os.path.join(self.cache_dir, self.key)
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self.lock_path = os.path.join(self.cache_dir, "lock")
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os.makedirs(self.cache_dir, exist_ok=True)
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elif override:
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self.cache_dir = default_override_dir()
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self.cache_dir = os.path.join(self.cache_dir, self.key)
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else:
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# create cache directory if it doesn't exist
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self.cache_dir = os.getenv("TRITON_CACHE_DIR",
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"").strip() or default_cache_dir()
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if self.cache_dir:
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self.cache_dir = f"{self.cache_dir}_{os.getpid()}"
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self.cache_dir = os.path.join(self.cache_dir, self.key)
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self.lock_path = os.path.join(self.cache_dir, "lock")
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os.makedirs(self.cache_dir, exist_ok=True)
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else:
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raise RuntimeError("Could not create or locate cache dir")
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