Centos7安装caffe指导

General dependencies

Remaining dependencies, recent OS

Remaining dependencies, if not found

# glog
wget https://storage.googleapis.com/google-code-archive-downloads/v2/code.google.com/google-glog/glog-0.3.3.tar.gz
tar zxvf glog-0.3.3.tar.gz
cd glog-0.3.3
./configure
make && make install
# gflags
wget https://github.com/schuhschuh/gflags/archive/master.zip
unzip master.zip
cd gflags-master
mkdir build && cd build
export CXXFLAGS="-fPIC" && cmake .. && make VERBOSE=1
make && make install
# lmdb
git clone https://github.com/LMDB/lmdb
cd lmdb/libraries/liblmdb
make && make install

开始编译~

make all 

报错：

[root@**** caffe]# make all 

查了一下，是程序在我们配置的lib目录里找不到atlas的so文件，比对了一下ld命令的查找方式和我们已安装的atlas：

ld -latlas --verbose

显示查找路径如下：

==================================================
attempt to open /usr/x86_64-redhat-linux/lib64/libatlas.so failed
attempt to open /usr/x86_64-redhat-linux/lib64/libatlas.a failed
attempt to open /usr/lib64/libatlas.so failed
attempt to open /usr/lib64/libatlas.a failed
attempt to open /usr/local/lib64/libatlas.so failed
attempt to open /usr/local/lib64/libatlas.a failed
attempt to open /lib64/libatlas.so failed
attempt to open /lib64/libatlas.a failed
attempt to open /usr/x86_64-redhat-linux/lib/libatlas.so failed
attempt to open /usr/x86_64-redhat-linux/lib/libatlas.a failed
attempt to open /usr/local/lib/libatlas.so failed
attempt to open /usr/local/lib/libatlas.a failed
attempt to open /lib/libatlas.so failed
attempt to open /lib/libatlas.a failed
attempt to open /usr/lib/libatlas.so failed
attempt to open /usr/lib/libatlas.a failed
ld: cannot find -latlas

我看了一下我们安装的atlas，在/usr/lib64/atlas/下，内有这些so：

[root@*** caffe]# ll /usr/lib64/atlas
total 21304
lrwxrwxrwx 1 root root       17 Apr  6 04:38 libsatlas.so -> libsatlas.so.3.10
lrwxrwxrwx 1 root root       17 Mar 14 22:24 libsatlas.so.3 -> libsatlas.so.3.10
-rwxr-xr-x 1 root root 10852104 Nov 20  2015 libsatlas.so.3.10
lrwxrwxrwx 1 root root       17 Apr  6 04:38 libtatlas.so -> libtatlas.so.3.10
lrwxrwxrwx 1 root root       17 Mar 14 22:24 libtatlas.so.3 -> libtatlas.so.3.10
-rwxr-xr-x 1 root root 10959464 Nov 20  2015 libtatlas.so.3.10

我们安装的atlas的so库只有libsatlas和libtatlas两种，与caffe要的完全不匹配。

查了一些材料（https://www.centos.org/forums/viewtopic.php?t=48543），这个提问里有提到这个现象，在centOS7下，库名已改，引入方式也要改变：

Names and content of atlas libraries have changed recently. Try

-L/usr/lib64/atlas -lsatlas or -L/usr/lib64/atlas -ltatlas

instead of

-lcblas.   

但我并不想去修改caffe源码，担心引起连锁问题，且报错中并没有提示具体发生问题的文件。

解决方案

改用openblas：

yum install  openblas-devel

MakeFile.config配置如下：

BLAS := open
# Custom (MKL/ATLAS/OpenBLAS) include and lib directories.
# Leave commented to accept the defaults for your choice of BLAS
# (which should work)!
#BLAS_INCLUDE := /usr/include/atlas
#BLAS_LIB := /usr/lib64/atlas

后续报错/lib64/libgtk-x11-2.0.so.0: undefined reference to `g_type_check_instance_is_fundamentally_a'

make all
make test
make runtest

一切顺利

make pycaffe时会有错误出现主要是一些必要的python包没有安装。

for req in $(cat caffe/python/requirements.txt); 

>do

>pip install $req;

>done

[root@caffe caffe-master]# make pycaffe
CXX/LD -o python/caffe/_caffe.so python/caffe/_caffe.cpp
python/caffe/_caffe.cpp:10:31: fatal error: numpy/arrayobject.h: No such file or directory

 #include

vi Makefile.config 更改/usr/lib/python2.7/dist-packages/numpy/core/include 为/usr/lib64/python2.7/site-packages/numpy/core/include