ubuntu 16.04 安装 cuda11.2 和cudnn8.2.1

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一、安装cuda11.2

1.打开官网https://developer.nvidia.com/cuda-11.2.0-download-archive?target_os=Linux&target_arch=x86_64&target_distro=Ubuntu&target_version=1604&target_type=runfilelocal

wget https://developer.download.nvidia.com/compute/cuda/11.2.0/local_installers/cuda_11.2.0_460.27.04_linux.run
sudo sh cuda_11.2.0_460.27.04_linux.run

┌──────────────────────────────────────────────────────────────────────────────┐
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输入accept

┌──────────────────────────────────────────────────────────────────────────────┐
│ CUDA Installer                                                               │
│ - [ ] Driver                                                                 │
│      [ ] 460.27.04                                                           │
│ + [X] CUDA Toolkit 11.2                                                      │
│   [X] CUDA Samples 11.2                                                      │
│   [X] CUDA Demo Suite 11.2                                                   │
│   [X] CUDA Documentation 11.2                                                │
│   Options                                                                    │
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│ Up/Down: Move | Left/Right: Expand | 'Enter': Select | 'A': Advanced options │
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#把默认选中的driver取消选中 然后install

2.设置环境变量

 vim ~/.bashrc
 #复制
export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:/usr/local/cuda-11.2/lib64
export PATH=$PATH:/usr/local/cuda-11.2/bin
export CUDA_HOME=$CUDA_HOME:/usr/local/cuda-11.2

source ~/.bashrc

安装完成

输入 nvcc -V 验证 显示

nvcc: NVIDIA (R) Cuda compiler driver
Copyright (c) 2005-2020 NVIDIA Corporation
Built on Mon_Nov_30_19:08:53_PST_2020
Cuda compilation tools, release 11.2, V11.2.67
Build cuda_11.2.r11.2/compiler.29373293_0

二、安装cudnn8.2.1

打开官网

https://developer.nvidia.com/rdp/cudnn-archive

#先查看下系统版本 uname -a
#我的是 16.04

下载这三个，根据cuda和服务器版本下载

2.安装

#依次安装
sudo dpkg -i libcudnn8_8.1.1.33-1+cuda11.2_amd64.deb
sudo dpkg -i libcudnn8-dev_8.1.1.33-1+cuda11.2_amd64.deb
sudo dpkg -i libcudnn8-samples_8.1.1.33-1+cuda11.2_amd64.deb

#官方说法：To verify that cuDNN is installed and is running properly, compile the mnistCUDNN sample located in the /usr/src/cudnn_samples_v8 directory in the debian file.
#0. Copy the cuDNN sample to a writable path.

cp -r /usr/src/cudnn_samples_v8/ $HOME
#Go to the writable path.
cd  ~/cudnn_samples_v8/mnistCUDNN

#2. Compile the mnistCUDNN sample.
#编译文件。
sudo make clean 
sudo make
3. Run the mnistCUDNN sample.
运行样例程序。
sudo ./mnistCUDNN
4. If cuDNN is properly installed and running on your Linux system, you will see a message similar to the following:
如果成功运行，会显示下列信息：

#查看cudnn版本
cat /usr/include/cudnn_version.h | grep CUDNN_MAJOR -A 2

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