* prun backward ops
test=develop

2）add pip install coverage in Dockerfile.tmp
test=develop

* test api example

* update python

* add sampcd_processor.py

* add if 0

* sort

* test paddle

* test paddle

* test paddle

* add whitelist

* change sampcd_processor.py

* change sampcd_processor.py

* change sampcd_processor.py

* add exit

* test=develop

* test=develop

test=develop

* remove the obsolete cmake options, test=develop

* remove unittests, test=develop

* delete options in paddle/scripts/paddle_build.sh

remove pycpuinfo deps in core

* fix mac ci random fail
* use platform instead

* fix py-cpuinfo mac random fail
* differentiate version on windows

* change nproc 8

需要在avx_noavx build时候，生成dockerfile。
使用combine_avx_noavx 参数生成whl后发现不能build镜像，原因：没有生成dockerfile。需要添加生成dockerfile选项。

* add WITH_COVERAGE option, default OFF

test=develop

* add coverage for python sdk

test=develop

* fix code style

* fix COVERAGE_FILE path

test=develop

* remove coverage package

test=develop

* test = develop, run coverage as module

test=develop

test=develop

Jian Tang made change on latest-dev Dockerfile, so sync the change
in the cuda9/10 Dockerfile

test=develop

add luotao to approval requirements.txt

* support avx and noavx core

* add catch and give some log

test=develop

* fix build

test=develop

* add missing package

test=develop

* fix pybind name

test=develop

* fix import error

test=develop

* conbime noavx core

test=develop

* add requirements

test=develop

* fix unkown message

test=develop

* fix api spec

test=develop

* refine and clean

test=develop

* update

* pass dist ut

* follow comments

test=develop

* refine scripts

test=develop

* Add Dockerfile for cuda9 and cuda10

* Add Dockerfile for cuda9 and cuda10

Add Dockerfile for building cuda9 cuda10 images.

* document_preview

* change name

* document

* add document_preview.sh

* add document_preview.sh

* add paddle_build.sh

* nohup python

* change port runserver

* test doc

* test=develop

* test=develop

* test=develop

* add git clone FluidDoc,PaddlePaddle.org

* change PaddlePaddle.org

* Add port comment

* change directory

* change PADDLE_ROOT

* 1. move the API check into CPU process
2. adjust the check order

* fix python/paddle/fluid/__init__.py detecting problems

1. specify the cuda arch name and bin to decrease the compile time for inference test=develop
2. simplify the script and add comments
3. remove the fluid process from cicheck

* fix cmakelist detecting problems

* add parallel build script to ci test=develop
* 1. classify the test case as single card/two cards/multiple cards type
   2. run test case according to the run type

* fix cmakelist detecting problems

* test=develop

* test=develop

* test=develop

* test=develop

* test=develop

test=develop