ISCE安装过程记录

* 参考ISCE发布包自带的readme.txt说明。*

1. isce-2.0.0.bz2压缩包解压

从网络上下载到的源码包， 最常见的是 .tar.gz 包， 还有一部分是 .tar.bz2包，要解压很简单 ：

.tar.gz 格式解压为 tar -zxvf xx.tar.gz

.tar.bz2 格式解压为 tar -jxvf xx.tar.bz2

解压ISCE命令： tar -jxvf isce-2.0.0.bz2

2.ubuntu安装指定版本的python

添加源以及安装步骤如下:

sudo apt-get install python-software-properties #没有这步,下一步会提示add-apt-repository未找到.
sudo add-apt-repository ppa:fkrull/deadsnakes #添加ppa源
sudo apt-get update;
sudo apt-get install python3.4

3.pip安装

//curl -O https://raw.githubusercontent.com/pypa/pip/master/contrib/get-pip.py
//sudo python3.4 get-pip.py
//使用软链接，ubuntu14.04系统已做完该工作;
//sudo ln -s /usr/bin/python3.4 /usr/bin/python3
上面三行代码过时

//获得get-pip.py文件;
curl -O https://bootstrap.pypa.io/get-pip.py
sudo python3 get-pip.py

验证pip版本，命令行输入：pip -V
* 输出：pip 9.0.1 from /usr/local/lib/python3.4/dist-packages (python 3.4)*
确实是python3.4的.

sudo pip3 install h5py
安装目录： /usr/lib/python3/dist-packages

4. gcc、g++、make、m4安装

sudo apt-get install gcc g++ make m4

5.其他安装

sudo apt-get install libmotif-dev #解决找不到xm/xm.h问题
sudo apt-get install libxt-dev #解决 X11/XXXX.h: No such file or directory

6. ISCE 脚本安装

###6.1、快速安装
注： /home/lu/ISCE/ISCE_Application为安装目录，与解压的源码文件夹并列
执行命令：

 ./install.sh -p /home/lu/ISCE/ISCE_Application

该命令为一键式安装，首先会下载download、解压unpack、编译、安装install依赖包：GMP,MPFR,MPC,GCC,SCONS,FFTW,SZIP,HDF5,NUMPY,H5PY

注：若安装第三方依赖库中间过程出错，可通过-d、-u、-i参数安装指定包，已下载安装的包无需重复下载安装。

若手头已安装包，无需再次下载，则执行下面的命令：

./install.sh -p /home/lu/ISCE/ISCE_Application -d NONE -u GMP,MPFR,MPC,GCC,SCONS,FFTW,SZIP,HDF5,NUMPY,H5PY -i GMP,MPFR,MPC,GCC,SCONS,FFTW,SZIP,HDF5,NUMPY,H5PY

注：编译gcc大约花费1小时10分钟

编译NUMPY时报错，提示缺少python.h文件 ,采用新立得安装python-dev
重新执行安装（此时不下载、不解压、只编译安装NUMPY、H5PY）

./install.sh -p /home/lu/ISCE/ISCE_Application -d NONE -u NONE -i NUMPY,H5PY

亦可通过pip来安装h5py：

 sudo pip install h5py
 sudo pip3 install h5py

此时依赖库已经安装完成
只安装ISCE：

./install.sh -p /home/lu/ISCE/ISCE_Application -i NONE

在 /home/lu/.isce路经下生成SConfigISCE、.isceenv文件

——— SConfigISCE文件内容 —

PRJ_SCONS_BUILD=/home/lu/ISCE/ISCE_Application/build/isce_build
PRJ_SCONS_INSTALL=/home/lu/ISCE/ISCE_Application/isce
LIBPATH=/home/lu/ISCE/ISCE_Application/lib64 /home/lu/ISCE/ISCE_Application/lib /home/lu/ISCE/ISCE_Application/lib32 /usr/lib/x86_64-linux-gnu/ /usr/local/lib /usr/local/opengl
CPPPATH=/home/lu/ISCE/ISCE_Application/include/python3.4m
FORTRAN=/home/lu/ISCE/ISCE_Application/bin/gfortran
CC=/home/lu/ISCE/ISCE_Application/bin/gcc
CXX=/home/lu/ISCE/ISCE_Application/bin/g++
FORTRANPATH=/home/lu/ISCE/ISCE_Application/include

———————————————-

lxml:

 sudo apt-get install libxml2-dev libxslt-dev python-dev
 sudo pip3 install lxml -i https://pypi.tuna.tsinghua.edu.cn/simple

 sudo pip install h5py
 sudo apt-get install libmotif-dev  #解决找不到xm/xm.h问题
 sudo apt-get install libxt-dev    #解决fatal error: X11/XXXX.h: No such file or directory 



 sudo ./install.sh -p /home/lu/ISCE/ISCE_Application -c /home/lu/.isce/SConfigISCE

设置环境变量Setup the Environment

source /home/lu/.isce/.isceenv

Test the installation and environment
//> python3
//>>> import isce
//>>> isce.version.release_version

测试失败：
在执行insarApp.py时，提示错误：
from . import multiarray ImportError: /home/lu/ISCE2.0/ISCE2.0_Application/lib/python/numpy/core/multiarray.so: undefined symbol: _Py_ZeroStruct

原因：安装NUMPY时采用了python而不是python3。

相似错误原因参考论坛：http://earthdef.caltech.edu/boards/4/topics/544

解决方法：采用python3重新编译安装NUMPY。
修改了setup.py 301，304行：
在python后添加了数字3

        #execute: setup.py configure with flags
        commands = [("setup", "python3 " + os.path.join(self.this_src, "setup.py configure " + self.flags), False)]
        #previous command gives an error if configure is not needed, the script will then skip "configure"
        #execute setup.py install
        commands.append(("setup", "python3 " + os.path.join(self.this_src, "setup.py install " + self.flags), True))

重新执行了：

./install.sh -p /home/lu/ISCE2.0/ISCE2.0_Application -d NONE -u NONE -i NUMPY

等价于：
setup.py –ping=pong –uname=Linux –gcc=/usr/bin/gcc –gpp=/usr/bin/g++ –prefix=/home/lu/ISCE2.0/ISCE2.0_Application –download=NONE –unpack=NONE –install=NUMPY

python3 /home/lu/ISCE2.0/ISCE2.0_Application/src/numpy-1.8.1/setup.py configure –home=/home/lu/ISCE2.0/ISCE2.0_Application

python3 /home/lu/ISCE2.0/ISCE2.0_Application/src/numpy-1.8.1/setup.py install –home=/home/lu/ISCE2.0/ISCE2.0_Application

注意：记得在NUMPY文件夹下添加文件site.cfg
文件内容：
[DEFAULT]
library_dirs = /usr/local/lib:/usr/local/bin/atlas/lib
include_dirs = /usr/local/include:/usr/local/bin/include
[blas_opt]
libraries = f77blas, cblas, atlas
[lapack_opt]
libraries = lapack, f77blas, cblas, atlas
[amd]
amd_libs = amd
[umfpack]
umfpack_libs = umfpack