How to change CUDA version
I met this error when compiling a modified caffe version.
OpenCV static library was compiled with CUDA 7.5 support. Please, use the same version or rebuild OpenCV with CUDA 8.0
I have some old code may not compatible with CUDA8.0, so I want to change my cuda version for this error.
I modified my ~/.bash_profile like this
# export PYTHONPATH=$PYTHONPATH:/usr/local/cuda-8.0/lib64/
# export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:/usr/local/cuda-8.0/lib64
export PYTHONPATH=$PYTHONPATH:/usr/local/cuda-7.5/targets/x86_64-linux/lib/
export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:/usr/local/cuda-7.5/targets/x86_64-linux/lib/
But it did't work. Still the same error. What should I do? Thanks.
Change your CUDA soft link to point on your desired CUDA version. For example:
ll /usr/local/cuda lrwxrwxrwx 1 root root 19 Sep 06 2017 /usr/local/cuda -> /usr/local/cuda-8.0/
Simply relink it with
ln -s /usr/local/cuda-7.5 /usr/local/cuda
(With the proper installation location)
I solved the problem finally.
Modifying ~/.bash_profile to change the path to CUDA is the correct way. But when you changed the file, you need to relaunch the bash .
Simply source ~/.bash_profile won't work. Because source will only append the content in the file to the already existed path rather than cover it.
上一篇: Chrome存储配额报告低于预期
下一篇: 如何更改CUDA版本