Question

在控制台中运行Python 3.6 Jupyter笔记本时出现此错误。

OMP: Error #15: Initializing libiomp5.dylib, but found libomp.dylib 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/.

我有ligomp的几种不同版本：

(µ_env) jespinozlt-osx:lib jespinoz$ pwd
/Users/jespinoz/anaconda/envs/µ_env/lib
(µ_env) jespinozlt-osx:lib jespinoz$ ls -lhtr | grep "omp"
-rw-rw-r--    4 jespinoz  tigr   165B Oct 28  2016 libgomp.spec
-rw-rw-r--    4 jespinoz  tigr   108K Oct 28  2016 libgomp.a
-rwxrwxr-x   11 jespinoz  tigr    62K Oct 28  2016 libgomp.1.dylib
-rwxrwxr-x    6 jespinoz  tigr   489K Oct 27 17:30 libomp.dylib
-rwxrwxr-x    5 jespinoz  tigr   176K Mar 14 13:10 libiompstubs5.dylib
-rwxrwxr-x    5 jespinoz  tigr   296K Mar 14 13:10 libiomp5_db.dylib
-rwxrwxr-x    5 jespinoz  tigr   2.7M Mar 14 13:10 libiomp5.dylib
lrwxr-xr-x    1 jespinoz  tigr    15B Apr 10 14:51 libgomp.dylib -> libgomp.1.dylib

一个快速补丁是：

import os
os.environ['KMP_DUPLICATE_LIB_OK']='True'

如何正确解决此问题？我需要删除我的整个conda并重新开始吗？

Answer 1

我遇到了这个问题，并尝试了https://github.com/dmlc/xgboost/issues/1715中描述的许多解决方案。

亚历克斯·埃弗斯（Alex Evers）的帖子（1ps0在2029年2月16日发表了评论）对我有用。

brew uninstall libiomp clamp-omp  
conda uninstall intel-openmp -n base  
conda install -c intel openmp -n myenv  
conda install nomkl -n myenv

Answer 2

我从同一来源https://github.com/dmlc/xgboost/issues/1715找到了解决方案

这似乎是macOS特有的问题。

对我有用的是在开头添加以下代码行。

import os
os.environ['KMP_DUPLICATE_LIB_OK']='True'

PS。我在运行Keras神经网络时遇到了这种情况。

如何正确修复以下OpenMP错误？

2 个答案: