nvcc fatal：安装 cuda 9.1+caffe+openCV 3.4.0 时不支持 gpu 架构“compute_20”

我已经安装了CUDA 9.1+cudnn-9.1+opencv 3.4.0+caffe.

当我尝试跑步时make all -j8 in caffe目录下，出现这个错误：

nvcc fatal：不支持的 GPU 架构“compute_20”

我尝试过运行：

"cmake -D CMAKE_BUILD_TYPE=RELEASE -D CUDA_GENERATION=Kepler .."

但没有成功。

尝试手动编辑Makefile.config https://github.com/BVLC/caffe/blob/master/Makefile.config.example#L33-L38去除compute_2*这些线路的架构（评论解释了原因）：

# CUDA architecture setting: going with all of them.
# For CUDA < 6.0, comment the *_50 through *_61 lines for compatibility.
# For CUDA < 8.0, comment the *_60 and *_61 lines for compatibility.
# For CUDA >= 9.0, comment the *_20 and *_21 lines for compatibility.
CUDA_ARCH := -gencode arch=compute_20,code=sm_20 \
        -gencode arch=compute_20,code=sm_21 \
        -gencode arch=compute_30,code=sm_30 \
        -gencode arch=compute_35,code=sm_35 \
        -gencode arch=compute_50,code=sm_50 \
        -gencode arch=compute_52,code=sm_52 \
        -gencode arch=compute_60,code=sm_60 \
        -gencode arch=compute_61,code=sm_61 \
        -gencode arch=compute_61,code=compute_61

并添加compute_6 *架构（请参阅注释），以便您的新CUDA_ARCH如下所示：

# CUDA architecture setting: going with all of them.
# For CUDA < 6.0, comment the *_50 through *_61 lines for compatibility.
# For CUDA < 8.0, comment the *_60 and *_61 lines for compatibility.
# For CUDA >= 9.0, comment the *_20 and *_21 lines for compatibility.
CUDA_ARCH := -gencode arch=compute_30,code=sm_30 \
        -gencode arch=compute_35,code=sm_35 \
        -gencode arch=compute_50,code=sm_50 \
        -gencode arch=compute_52,code=sm_52 \
        -gencode arch=compute_60,code=sm_60 \
        -gencode arch=compute_61,code=sm_61 \
        -gencode arch=compute_61,code=compute_61

那么你需要make clean before make all.