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[torch.compile] force inductor threads #10620

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Nov 25, 2024
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[torch.compile] force inductor threads #10620

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jeejeelee Nov 25, 2024
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jeejeelee Nov 25, 2024
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10 changes: 9 additions & 1 deletion vllm/plugins/__init__.py
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Original file line number Diff line number Diff line change
Expand Up @@ -14,6 +14,14 @@
plugins_loaded = False


def _force_torch_inductor_compile_threads(thread_num: int):
import torch
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# see https://github.com/vllm-project/vllm/issues/10619
# A hacky way to limit the number of threads
torch._inductor.config.compile_threads = thread_num


def load_general_plugins():
"""WARNING: plugins can be loaded for multiple times in different
processes. They should be designed in a way that they can be loaded
Expand All @@ -26,7 +34,7 @@ def load_general_plugins():

# see https://github.com/vllm-project/vllm/issues/10480
os.environ['TORCHINDUCTOR_COMPILE_THREADS'] = '1'

_force_torch_inductor_compile_threads(thread_num=1)
global plugins_loaded
if plugins_loaded:
return
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