tensorflow2.7M1安装依赖openblas问题

问题描述

安装过程

conda create -n conda-forge-tensorflow conda-forge::tensorflow
conda info -e
conda activate conda-forge-tensorflow
pip install ipython
python -c 'import tensorflow; print(tensorflow.__version__)'

先说结论

• conda 安装tensorflow，依赖numpy；numpy依赖openblas；默认没有安装。
• 手动安装openblas不完全，需要手动配置链接库软链
• 关键信息：

conda install openblas
# 建立软链
ln -s libopenblas.dylib libopenblas_vortexp-r0.3.17.dylib

遇到问题

Traceback (most recent call last):
  File "/Users/enzhao/suanec/libs/miniconda3/envs/conda-forge-tensorflow/lib/python3.9/site-packages/numpy/core/__init__.py", line 22, in <module>
    from . import multiarray
  File "/Users/enzhao/suanec/libs/miniconda3/envs/conda-forge-tensorflow/lib/python3.9/site-packages/numpy/core/multiarray.py", line 12, in <module>
    from . import overrides
  File "/Users/enzhao/suanec/libs/miniconda3/envs/conda-forge-tensorflow/lib/python3.9/site-packages/numpy/core/overrides.py", line 7, in <module>
    from numpy.core._multiarray_umath import (
ImportError: dlopen(/Users/enzhao/suanec/libs/miniconda3/envs/conda-forge-tensorflow/lib/python3.9/site-packages/numpy/core/_multiarray_umath.cpython-39-darwin.so, 0x0002): Library not loaded: @rpath/libcblas.3.dylib
  Referenced from: /Users/enzhao/suanec/libs/miniconda3/envs/conda-forge-tensorflow/lib/python3.9/site-packages/numpy/core/_multiarray_umath.cpython-39-darwin.so
  Reason: tried: '/Users/enzhao/suanec/libs/miniconda3/envs/conda-forge-tensorflow/lib/libcblas.3.dylib' (no such file), '/Users/enzhao/suanec/libs/miniconda3/envs/conda-forge-tensorflow/lib/libcblas.3.dylib' (no such file), '/Users/enzhao/suanec/libs/miniconda3/envs/conda-forge-tensorflow/lib/python3.9/site-packages/numpy/core/../../../../libcblas.3.dylib' (no such file), '/Users/enzhao/suanec/libs/miniconda3/envs/conda-forge-tensorflow/lib/libcblas.3.dylib' (no such file), '/Users/enzhao/suanec/libs/miniconda3/envs/conda-forge-tensorflow/lib/libcblas.3.dylib' (no such file), '/Users/enzhao/suanec/libs/miniconda3/envs/conda-forge-tensorflow/lib/python3.9/site-packages/numpy/core/../../../../libcblas.3.dylib' (no such file), '/Users/enzhao/suanec/libs/miniconda3/envs/conda-forge-tensorflow/bin/../lib/libcblas.3.dylib' (no such file), '/Users/enzhao/suanec/libs/miniconda3/envs/conda-forge-tensorflow/bin/../lib/libcblas.3.dylib' (no such file), '/usr/local/lib/libcblas.3.dylib' (no such file), '/usr/lib/libcblas.3.dylib' (no such file)

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<string>", line 1, in <module>
  File "/Users/enzhao/suanec/libs/miniconda3/envs/conda-forge-tensorflow/lib/python3.9/site-packages/tensorflow/__init__.py", line 41, in <module>
    from tensorflow.python.tools import module_util as _module_util
  File "/Users/enzhao/suanec/libs/miniconda3/envs/conda-forge-tensorflow/lib/python3.9/site-packages/tensorflow/python/__init__.py", line 41, in <module>
    from tensorflow.python.eager import context
  File "/Users/enzhao/suanec/libs/miniconda3/envs/conda-forge-tensorflow/lib/python3.9/site-packages/tensorflow/python/eager/context.py", line 30, in <module>
    import numpy as np
  File "/Users/enzhao/suanec/libs/miniconda3/envs/conda-forge-tensorflow/lib/python3.9/site-packages/numpy/__init__.py", line 150, in <module>
    from . import core
  File "/Users/enzhao/suanec/libs/miniconda3/envs/conda-forge-tensorflow/lib/python3.9/site-packages/numpy/core/__init__.py", line 48, in <module>
    raise ImportError(msg)
ImportError:

IMPORTANT: PLEASE READ THIS FOR ADVICE ON HOW TO SOLVE THIS ISSUE!

Importing the numpy C-extensions failed. This error can happen for
many reasons, often due to issues with your setup or how NumPy was
installed.

We have compiled some common reasons and troubleshooting tips at:

    https://numpy.org/devdocs/user/troubleshooting-importerror.html

Please note and check the following:

  * The Python version is: Python3.9 from "/Users/enzhao/suanec/libs/miniconda3/envs/conda-forge-tensorflow/bin/python"
  * The NumPy version is: "1.21.1"

and make sure that they are the versions you expect.
Please carefully study the documentation linked above for further help.

Original error was: dlopen(/Users/enzhao/suanec/libs/miniconda3/envs/conda-forge-tensorflow/lib/python3.9/site-packages/numpy/core/_multiarray_umath.cpython-39-darwin.so, 0x0002): Library not loaded: @rpath/libcblas.3.dylib
  Referenced from: /Users/enzhao/suanec/libs/miniconda3/envs/conda-forge-tensorflow/lib/python3.9/site-packages/numpy/core/_multiarray_umath.cpython-39-darwin.so
  Reason: tried: '/Users/enzhao/suanec/libs/miniconda3/envs/conda-forge-tensorflow/lib/libcblas.3.dylib' (no such file), '/Users/enzhao/suanec/libs/miniconda3/envs/conda-forge-tensorflow/lib/libcblas.3.dylib' (no such file), '/Users/enzhao/suanec/libs/miniconda3/envs/conda-forge-tensorflow/lib/python3.9/site-packages/numpy/core/../../../../libcblas.3.dylib' (no such file), '/Users/enzhao/suanec/libs/miniconda3/envs/conda-forge-tensorflow/lib/libcblas.3.dylib' (no such file), '/Users/enzhao/suanec/libs/miniconda3/envs/conda-forge-tensorflow/lib/libcblas.3.dylib' (no such file), '/Users/enzhao/suanec/libs/miniconda3/envs/conda-forge-tensorflow/lib/python3.9/site-packages/numpy/core/../../../../libcblas.3.dylib' (no such file), '/Users/enzhao/suanec/libs/miniconda3/envs/conda-forge-tensorflow/bin/../lib/libcblas.3.dylib' (no such file), '/Users/enzhao/suanec/libs/miniconda3/envs/conda-forge-tensorflow/bin/../lib/libcblas.3.dylib' (no such file), '/usr/local/lib/libcblas.3.dylib' (no such file), '/usr/lib/libcblas.3.dylib' (no such file)

排查

• 因为numpy需要线性计算库依赖，openblas相关
• 但conda中没有，用如下命令安装：

conda install openblas

• 确认安装结果：

conda list | grep blas
blas                      1.0                    openblas    defaults
libblas                   3.9.0           11_osxarm64_openblas    conda-forge
libcblas                  3.9.0           11_osxarm64_openblas    conda-forge
liblapack                 3.9.0           11_osxarm64_openblas    conda-forge
libopenblas               0.3.17               h9886b1c_1    defaults
openblas                  0.3.17               hca03da5_1    defaults
openblas-devel            0.3.17               hca03da5_1    defaults

ll /Users/enzhao/suanec/libs/miniconda3/envs/conda-forge-tensorflow/lib/libcblas.3.dylib
lrwxr-xr-x  1 enzhao  enzhao    33B  3 16 18:22 /Users/enzhao/suanec/libs/miniconda3/envs/conda-forge-tensorflow/lib/libcblas.3.dylib -> libopenblas_vortexp-r0.3.17.dylib

• 再次导入问题依旧，排查libopenblas_vortexp-r0.3.17.dylib文件，发现不存在。
• 建立软链：

cd /Users/enzhao/suanec/libs/miniconda3/envs/conda-forge-tensorflow/lib
# 建立软链
ln -s libopenblas.dylib libopenblas_vortexp-r0.3.17.dylib
# 确认文件正常
less /Users/enzhao/suanec/libs/miniconda3/envs/conda-forge-tensorflow/lib/libcblas.3.dylib

• 重新导入，已正常：

python -c 'import tensorflow; print(tensorflow.__version__)'
2.7.0