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Fix caching for CPUs #1055

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merged 1 commit into from
Oct 31, 2025
Merged

Fix caching for CPUs #1055

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36 changes: 27 additions & 9 deletions helion/autotuner/local_cache.py
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Original file line number Diff line number Diff line change
Expand Up @@ -6,6 +6,7 @@
import logging
import os
from pathlib import Path
import platform
import textwrap
from typing import TYPE_CHECKING
import uuid
Expand Down Expand Up @@ -58,17 +59,34 @@ def _generate_key(self) -> LooseAutotuneCacheKey:

for arg in self.args:
if isinstance(arg, torch.Tensor):
nms = torch.xpu if torch.xpu.is_available() else torch.cuda
device_properties = nms.get_device_properties(arg.device)
if torch.version.cuda is not None: # pyright: ignore[reportAttributeAccessIssue]
hardware = device_properties.name
runtime_name = str(torch.version.cuda)
elif torch.version.hip is not None: # pyright: ignore[reportAttributeAccessIssue]
hardware = device_properties.gcnArchName
runtime_name = torch.version.hip # pyright: ignore[reportAttributeAccessIssue]
else:
dev = arg.device
# CPU support
if dev.type == "cpu":
hardware = "cpu"
runtime_name = platform.machine().lower()
break

# XPU (Intel) path
if (
dev.type == "xpu"
and getattr(torch, "xpu", None) is not None
and torch.xpu.is_available()
): # pyright: ignore[reportAttributeAccessIssue]
device_properties = torch.xpu.get_device_properties(dev)
hardware = device_properties.name
runtime_name = device_properties.driver_version # pyright: ignore[reportAttributeAccessIssue]
break

# CUDA/ROCm path
if dev.type == "cuda" and torch.cuda.is_available():
device_properties = torch.cuda.get_device_properties(dev)
if torch.version.cuda is not None: # pyright: ignore[reportAttributeAccessIssue]
hardware = device_properties.name
runtime_name = str(torch.version.cuda)
elif torch.version.hip is not None: # pyright: ignore[reportAttributeAccessIssue]
hardware = device_properties.gcnArchName
runtime_name = torch.version.hip # pyright: ignore[reportAttributeAccessIssue]
break

assert hardware is not None and runtime_name is not None
return LooseAutotuneCacheKey(
Expand Down
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