OMP: Error #15: Initializing libiomp5md.dll, but found libiomp5md.dll already initialized. OMP: Hint

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博客指出程序中出现多个OpenMP运行时链接的问题，这会影响性能或导致结果错误。给出两种解决方案，一是设置环境变量KMP_DUPLICATE_LIB_OK为TRUE，二是使用conda install nomkl。

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问题描述
OMP: Error #15: Initializing libiomp5md.dll, but found libiomp5md.dll already initialized.
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://www.intel.com/software/products/support/.
解决方案1：
import os
os.environ[“KMP_DUPLICATE_LIB_OK”]="TRUE
解决方案2：
conda install nomkl