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[BugFix] Avoid initializing CUDA too early #3487

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Merged
merged 1 commit into from
Mar 19, 2024
Merged

[BugFix] Avoid initializing CUDA too early #3487

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8 changes: 4 additions & 4 deletions vllm/config.py
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Original file line number Diff line number Diff line change
Expand Up @@ -577,12 +577,12 @@ class DeviceConfig:
def __init__(self, device: str = "auto") -> None:
if device == "auto":
# Automated device type detection
if torch.cuda.is_available():
self.device_type = "cuda"
elif is_neuron():
if is_neuron():
self.device_type = "neuron"
else:
raise RuntimeError("No supported device detected.")
# We don't call torch.cuda.is_available() here to
# avoid initializing CUDA before workers are forked
self.device_type = "cuda"
else:
# Device type is assigned explicitly
self.device_type = device
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