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[Bug]: Using matploblib plot crashes conda kernel #21938
Description
Bug summary
I have Windows 10, conda 4.10.3 with Python 3.9.7 and dependencies
matplotlib-base==3.5.1
matplotlib==3.5.1
matplotlib-inline==0.1.3
numpy==1.21.2
numpy-base==1.21.2
(amongst other installed packages). When I try to create plots using matplotlib.pyplot:
Code for reproduction
plt.plot(...)
# OR-
plt.scatter(...)
plt.show()Actual outcome
OMP: Error #15: Initializing libiomp5md.dll, but found libiomp5 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/.
Expected outcome
visualization
Additional information
No response
Operating system
Windows 10
Matplotlib Version
3.5.1
Matplotlib Backend
No response
Python version
3.9.7
Jupyter version
No response
Installation
conda
[@tacaswell edited to add markup]
Activity
tacaswell commented on Dec 13, 2021
We do not directly do anything with openMP. Given that the error refers to intel products, I assume that this is related to numpy and mkl. From this information it is hard to determine exactly what (a full trackback may help), however I suspect that this is an installation issue. I suggest you try the following:
Did you packages from from anaconda's default channel or from conda-forge?
I'm going to close this as there is nothing that we can do on the Matplotlib side to help you. If you are still having trouble, can you follow up in https://discourse.matplotlib.org/c/community/install/13 ?