简记我在centos上安装mxnet的心路历程~ ~

步骤一：首先乖乖的按照官方文档的安装教程

git clone –recursive https://github.com/dmlc/mxnetcdmxnet;

make -j16

进行安装。结果出现error…（系统自带的g++版本为4.4.7，而mxnet要求>=4.8），进而我就鬼迷心窍的去下载安装了最新版本的g++6.0。

步骤二：更新g++版本，最好更新4.8或着4.9两个版本，因为cuda-7.5编译要求g++版本要

升级g++的教程如下：

1、下载g++4.8.5的源码安装包 wget ftp://ftp.gnu.org/gnu/gcc/gcc-4.8.5/gcc-4.8.5.tar.gz，

2、下载依赖包（gcc自带下载脚本）

./contrib/download_prerequisites

3、直接编译会出现error

所以可以提前执行unset LIBRARY_PATH该命令（也是可以在编译报错之后再执行。。）

4、编译安装

mkdir gcc-build-4.8.5

cd gcc-build-4.8.5

../configure –prefix=/usr

make && make install

5、通过gcc –version 、g++ –version查看版本号

降级gcc教程如下：

sudo yum remove–skip-broken gcc

sudo yum install–skip-broken gcc

yum install gcc-c++

yum-yinstallglibc-devel.i686 glibc-devel

步骤三：自定义安装

将make文件夹下面的config.mk文件copy到mxnet根目录下面，然后再config.mk文件中自定义修改。如：

#———————

choice of compiler

#——————–

export CC = gcc

export CXX = g++

export NVCC = nvcc

whether compile with debug

DEBUG = 0

the additional link flags you want to add

ADD_LDFLAGS = -L/usr/lib64/atlas

the additional compile flags you want to add

#ADD_CFLAGS =

#———————————————

matrix computation libraries for CPU/GPU

#———————————————

whether use CUDA during compile

USE_CUDA = 1

add the path to CUDA library to link and compile flag

if you have already add them to environment variable, leave it as NONE

USE_CUDA_PATH = /usr/local/cuda-7.5

#USE_CUDA_PATH = NONE

whether use CuDNN R3 library

USE_CUDNN = 1

whether use cuda runtime compiling for writing kernels in native language (i.e. Python)

USE_NVRTC = 0

whether use opencv during compilation

you can disable it, however, you will not able to use

imbin iterator

USE_OPENCV = 1

use openmp for parallelization

USE_OPENMP = 1

choose the version of blas you want to use

can be: mkl, blas, atlas, openblas

in default use atlas for linux while apple for osx

UNAME_S := (shell uname -s)

ifeq ((UNAME_S), Darwin)

USE_BLAS = apple

else

USE_BLAS = atlas

endif

add path to intel library, you may need it for MKL, if you did not add the path

to environment variable

USE_INTEL_PATH = NONE

If use MKL, choose static link automatically to allow python wrapper

ifeq ($(USE_BLAS), mkl)

USE_STATIC_MKL = 1

else

USE_STATIC_MKL = NONE

endif

#—————————-

distributed computing

#—————————-

whether or not to enable multi-machine supporting

USE_DIST_KVSTORE = 0

whether or not allow to read and write HDFS directly. If yes, then hadoop is

required

USE_HDFS = 0

path to libjvm.so. required if USE_HDFS=1

LIBJVM=$(JAVA_HOME)/jre/lib/amd64/server

whether or not allow to read and write AWS S3 directly. If yes, then

libcurl4-openssl-dev is required, it can be installed on Ubuntu by

sudo apt-get install -y libcurl4-openssl-dev

USE_S3 = 0

修改好config.mk文件后，就可以运行make -j8进行编译了。

步骤四：安装python包

cd /mxnet/python

执行 python setup.py

到此就大功告成啦！

Tips：直接手动从github上下载的文件要使用git submodule init和git submodule update更新子模块。

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