Lightgbm运行 OMP: Error #15: Initializing libomp.dylib, but found libiomp5.dylib already initialize

最新推荐文章于 2025-05-20 22:51:45 发布

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最新推荐文章于 2025-05-20 22:51:45 发布 · 2.2k 阅读

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#lightgbm #Error#15 #OMP

在运行lightgbm 2.2.3时遇到'OMP: Error #15'错误，该错误提示初始化libomp.dylib时发现libiomp5.dylib已初始化。解决方案包括设置环境变量KMP_DUPLICATE_LIB_OK=TRUE（可能引起不稳定）或针对macOS用户，通过更新Conda环境中的numpy包或创建指向Homebrew安装的系统库的软链接来解决OpenMP冲突。

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运行lightgbm 2.2.3时出现如下错误：
OMP: Error #15: Initializing libomp.dylib, but found libiomp5.dylib already initialize

下面有一段解释：
OMP: Hint This means that multiple copies of the OpenMP runtime have been linked into the program. That is dangerous, since it can degrade performance or cause incorrect results. The best thing to do is to ensure that only a single OpenMP runtime is linked into the process, e.g. by avoiding static linking of the OpenMP runtime in any library. As an unsafe, unsupported, undocumented workaround you can set the environment variable KMP_DUPLICATE_LIB_OK=TRUE to allow the program to continue to execute, but that may cause crashes or silently produce incorrect results. For more information, please see http://openmp.llvm.org/

意思是说：程序运行时有链接到多个openMP副本，这可能导致性能下降或出现不正确的结果，最好是确保只有一个被接入程序中。
可是根本不懂openMP是什么啊！〜〜〜

先解决此问题：