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[GH-ISSUE #187] 有使用纯CPU跑的吗，各种多线程开启但是服务只使用了一个物理CPU核心，研究了很长时间不知道为啥 #149

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opened 2026-10-26 21:13:04 +00:00 by bsakaguchi · 1 comment
bsakaguchi commented 2026-10-26 21:13:04 +00:00
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Originally created by @bugwang on GitHub (Feb 26, 2025).
Original GitHub issue: https://github.com/deepseek-ai/Janus/issues/187

os.environ["OMP_NUM_THREADS"] = "32" # 例如设置为1
os.environ["MKL_NUM_THREADS"] = "32" # 例如设置为1
os.environ["OPENBLAS_NUM_THREADS"] = "32"
os.environ["VECLIB_MAXIMUM_THREADS"] = "32"
os.environ["NUMEXPR_NUM_THREADS"] = "32"

print("get_num_threads ",torch.get_num_threads())
torch.set_num_threads(32)

物理核心32个，只用一个核心 100%

搞了三天了、没查到问题。

Originally created by @bugwang on GitHub (Feb 26, 2025). Original GitHub issue: https://github.com/deepseek-ai/Janus/issues/187 os.environ["OMP_NUM_THREADS"] = "32" # 例如设置为1 os.environ["MKL_NUM_THREADS"] = "32" # 例如设置为1 os.environ["OPENBLAS_NUM_THREADS"] = "32" os.environ["VECLIB_MAXIMUM_THREADS"] = "32" os.environ["NUMEXPR_NUM_THREADS"] = "32" print("get_num_threads ",torch.get_num_threads()) torch.set_num_threads(32) 物理核心32个，只用一个核心 100% 搞了三天了、没查到问题。
bsakaguchi commented 2026-10-26 21:13:05 +00:00
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@bugwang commented on GitHub (Feb 26, 2025):

如果只是Python GIL限制。无法改变，也只能放弃了

<!-- gh-comment-id:2683835817 --> @bugwang commented on GitHub (Feb 26, 2025): 如果只是Python GIL限制。无法改变，也只能放弃了
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deepseek-ai/Janus#149
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