学习Caffe(一)安装Caffe
Caffe是一个深度学习框架,本文讲阐述如何在linux下安装GPU加速的caffe。
系统配置是:
- OS: Ubuntu14.04
- CPU: i5-4690
- GPU: GTX960
- RAM: 8G
安装方法参见caffe的官方文档:http://caffe.berkeleyvision.org/installation.html#compilation
依赖项:
- CUDA:推荐7.0以上的cuda和最新的显卡驱动。
- BLAS:ATLAS, MKL, or OpenBLAS。C++矩阵运算库。
- Boost >= 1.55。用到一些数学函数等。
- protobuf:是一种轻便、高效的结构化数据存储格式,可以用于结构化数据串行化,很适合做数据存储或 RPC 数据交换格式。
- glog&&gflags:谷歌的一个日志库;命令行参数解析库。方便调试使用。
- hdf5:
- lmdb,leveldb:数据库IO。准备数据时会用到。
可选依赖:
- OpenCV >= 2.4 including 3.0
- IO libraries: lmdb, leveldb (note: leveldb requires snappy)
- cuDNN for GPU acceleration (v5)
Pycaffe:
Python 2.7 or Python 3.3+, numpy (>= 1.7), boost-provided boost.python
Matcaffe:
MATLAB with the mex compiler
安装CUDA7.5
CUDA维基百科:https://zh.wikipedia.org/wiki/CUDA
CUDA(Compute Unified Device Architecture,统一计算架构)是由NVIDIA所推出的一种集成技术,是该公司对于GPGPU的正式名称。通过这个技术,用户可利用NVIDIA的GeForce 8以后的GPU和较新的Quadro GPU进行计算。亦是首次可以利用GPU作为C-编译器的开发环境。
安装过程
1.下载Cuda
下载CUDA:https://developer.nvidia.com/cuda-downloads 选择下载deb包(或者runfile),下载完后用mu5sum检查一下文件是否完整。按照cuda官方文档安装cuda.
2.安装
先关闭桌面显示管理器lightdm,进入字符界面,在字符界面安装cuda。(这是因为cuda的安装包里包含了显卡驱动,安装驱动前要先关闭桌面显示管理器)
(也可分别安装显卡驱动与cuda库)
sudo service stop
切换到deb包目录,执行下面的命令
sudo dpkg -i cuda-repo-<distro>_<version>_<architecture>.deb
sudo apt-get update
sudo apt-get install cuda
然后重启电脑:sudo reboot
注意,cuda的安装包中已经包含了较新版本的显卡驱动。
3.配置环境变量
将cuda安装目录下的bin路径导出到系统的搜索路径path
并使之生效
添加动态库查找路径:在 /etc/ld.so.conf.d/加入文件 cuda.conf, 内容如下
/usr/local/cuda/lib64
保存后,执行下列命令使之立刻生效:
sudo ldconfig
4.验证
查看Cuda的C编译器NVCC的版本:
nvcc -V
编译并运行例子,进入cuda目录下的samples目录,然后在该目录下make,等待十来分钟。编译完成后,可以在Samples里面找到bin/x86_64/linux/release/目录,并切换到该目录
运行deviceQuery程序,查看输出结果如下(重点关注最后一行,Pass表示通过测试)。
5.gcc编译器版本
该版本cuda不支持gcc5.0的编译器
参考文献:
[1]Ubuntu 16.04 安装 NVIDIA CUDA Toolkit 7.5 https://gist.github.com/dangbiao1991/2c895917ea888ce33af8c1c72444b7bf
[2]Ubuntu 14.04+cuda 7.5+caffe安装配置 http://blog.csdn.net/ubunfans/article/details/47724341
安装Cudnn
下载cudnn https://developer.nvidia.com/rdp/cudnn-download, 解压,把lib目录,include目录分别复制到cuda的安装目录下。
安装BLAS
install ATLAS by sudo apt-get install libatlas-base-dev or install OpenBLAS or MKL for better CPU performance.
下载Caffe
安装Caffe依赖库
通用依赖库:
sudo apt-get install libprotobuf-dev libleveldb-dev libsnappy-dev libopencv-dev libhdf5-serial-dev protobuf-compiler
sudo apt-get install --no-install-recommends libboost-all-dev
Ubuntu14.04 依赖库:
sudo apt-get install libgflags-dev libgoogle-glog-dev liblmdb-dev
PyCaffe依赖库
进入caffe/python目录,安装依赖项:
for req in $(cat requirements.txt); do pip install $req; done
caffe官网推荐使用Anaconda http://continuum.io/downloads#all Anaconda是一个和Canopy类似的科学计算环境,但用起来更加方便。自带的包管理器conda也很强大。
MatCaffe
安装matlabR2014a
编译caffe
复制并修改Makefile.config文件:
## Refer to http://caffe.berkeleyvision.org/installation.html
# Contributions simplifying and improving our build system are welcome!
# cuDNN acceleration switch (uncomment to build with cuDNN).
USE_CUDNN := 1
# CPU-only switch (uncomment to build without GPU support).
# CPU_ONLY := 1
# uncomment to disable IO dependencies and corresponding data layers
# USE_OPENCV := 0
# USE_LEVELDB := 0
# USE_LMDB := 0
# uncomment to allow MDB_NOLOCK when reading LMDB files (only if necessary)
# You should not set this flag if you will be reading LMDBs with any
# possibility of simultaneous read and write
# ALLOW_LMDB_NOLOCK := 1
# Uncomment if you're using OpenCV 3
# OPENCV_VERSION := 3
# To customize your choice of compiler, uncomment and set the following.
# N.B. the default for Linux is g++ and the default for OSX is clang++
# CUSTOM_CXX := g++
# CUDA directory contains bin/ and lib/ directories that we need.
CUDA_DIR := /usr/local/cuda
# On Ubuntu 14.04, if cuda tools are installed via
# "sudo apt-get install nvidia-cuda-toolkit" then use this instead:
# CUDA_DIR := /usr
# CUDA architecture setting: going with all of them.
# For CUDA < 6.0, comment the *_50 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_50,code=compute_50
# BLAS choice:
# atlas for ATLAS (default)
# mkl for MKL
# open for OpenBlas
BLAS := atlas
# Custom (MKL/ATLAS/OpenBLAS) include and lib directories.
# Leave commented to accept the defaults for your choice of BLAS
# (which should work)!
# BLAS_INCLUDE := /path/to/your/blas
# BLAS_LIB := /path/to/your/blas
# Homebrew puts openblas in a directory that is not on the standard search path
# BLAS_INCLUDE := $(shell brew --prefix openblas)/include
# BLAS_LIB := $(shell brew --prefix openblas)/lib
# This is required only if you will compile the matlab interface.
# MATLAB directory should contain the mex binary in /bin.
MATLAB_DIR := /usr/local/MATLAB/R2014a
# MATLAB_DIR := /Applications/MATLAB_R2012b.app
# NOTE: this is required only if you will compile the python interface.
# We need to be able to find Python.h and numpy/arrayobject.h.
PYTHON_INCLUDE := /usr/include/python2.7 \
/usr/local/lib/python2.7/dist-packages/numpy/core/include
# Anaconda Python distribution is quite popular. Include path:
# Verify anaconda location, sometimes it's in root.
# ANACONDA_HOME := $(HOME)/anaconda
# PYTHON_INCLUDE := $(ANACONDA_HOME)/include \
# $(ANACONDA_HOME)/include/python2.7 \
# $(ANACONDA_HOME)/lib/python2.7/site-packages/numpy/core/include \
# Uncomment to use Python 3 (default is Python 2)
# PYTHON_LIBRARIES := boost_python3 python3.5m
# PYTHON_INCLUDE := /usr/include/python3.5m \
# /usr/lib/python3.5/dist-packages/numpy/core/include
# We need to be able to find libpythonX.X.so or .dylib.
PYTHON_LIB := /usr/lib
# PYTHON_LIB := $(ANACONDA_HOME)/lib
# Homebrew installs numpy in a non standard path (keg only)
# PYTHON_INCLUDE += $(dir $(shell python -c 'import numpy.core; print(numpy.core.__file__)'))/include
# PYTHON_LIB += $(shell brew --prefix numpy)/lib
# Uncomment to support layers written in Python (will link against Python libs)
WITH_PYTHON_LAYER := 1
# Whatever else you find you need goes here.
INCLUDE_DIRS := $(PYTHON_INCLUDE) /usr/local/include
LIBRARY_DIRS := $(PYTHON_LIB) /usr/local/lib /usr/lib
# If Homebrew is installed at a non standard location (for example your home directory) and you use it for general dependencies
# INCLUDE_DIRS += $(shell brew --prefix)/include
# LIBRARY_DIRS += $(shell brew --prefix)/lib
# Uncomment to use `pkg-config` to specify OpenCV library paths.
# (Usually not necessary -- OpenCV libraries are normally installed in one of the above $LIBRARY_DIRS.)
# USE_PKG_CONFIG := 1
# N.B. both build and distribute dirs are cleared on `make clean`
BUILD_DIR := build
DISTRIBUTE_DIR := distribute
# Uncomment for debugging. Does not work on OSX due to https://github.com/BVLC/caffe/issues/171
# DEBUG := 1
# The ID of the GPU that 'make runtest' will use to run unit tests.
TEST_GPUID := 0
# enable pretty build (comment to see full commands)
Q ?= @
进入caffe目录,执行:
make all
make test
make runtest
无错误,编译完成。
编译pycaffe与matcaffe
进入caffe目录,执行
make pycaffe
make matcaffe
Caffe python接口
复制caffe/python/caffe 到/usr/local/lib/python2.7/dist-packages/目录下。
复制caffe/build/lib/下的库文件到/usr/local/lib
$ sudo ldconfig
打开python,import caffe,无错误。
Caffe C++接口
分别将include,lib目录复制。
测试
测试mnist http://caffe.berkeleyvision.org/gathered/examples/mnist.html
准备数据
cd $CAFFE_ROOT
./data/mnist/get_mnist.sh
./examples/mnist/create_mnist.sh
LeNet: the MNIST Classification Model
…
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