python - 如何修复 "OMP: Error #15: Initializing libiomp5.dylib, but found libomp.dylib already initialized"错误？

Question

我在控制台中运行 Python 3.6 Jupyter notebooks 时遇到此错误。

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/.

我有几个不同版本的 ligomp:

(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

一个快速补丁是这样的:

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

我该如何正确解决这个问题？我是否需要删除整个 conda 并重新开始？

Answer 1

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

Alex Evers 的帖子(1ps0 于 2 月 16 日(2029 年)发表评论)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