Merge pull request !20 from jinyaohui/master

Merge pull request !143 from liuxiao/temp

!149 Use TFRecordDataset instead of StorageDataset in Bert model integration test and add absolute position embedding code in bert model
Merge pull request !149 from yoonlee666/master

Merge pull request !179 from ghzl/improve-example-in-me-front

Merge pull request !178 from Simson/rebuild-graph-before-RunGraph

Merge pull request !175 from Simson/rebuild-graph-before-RunGraph

Merge pull request !82 from caifubi/dev-profiling

Merge pull request !156 from Xiaoda/implementing-memory-calculation-in-auto-parallel

Merge pull request !166 from chenhaozhe/pass-auto-mixed-precision-flag

Merge pull request !153 from zhaozhenlong/cell/image_gradients

Merge pull request !165 from ghzl/use-mindspore-instead-of-mstype-in-example

This commit is to separate the computation cost and memory cost in auto_parallel. Some related memory correction is removed.

Merge pull request !161 from VectorSL/master

Merge pull request !122 from WeibiaoYu/master

Merge pull request !139 from jonathan_yan/DLTJ

Merge pull request !163 from ms_yan/schema_para_check

Merge pull request !158 from guozhijian/fix_block_reader_hung

Merge pull request !151 from dengwentao/mkldnn_cmake

Merge pull request !120 from Alexey_Shevlyakov/master

Merge pull request !157 from chengang/revert-merge-133-master

Merge pull request !128 from wangqiuliang/refactor-call-back-for-ge

Merge pull request !133 from VectorSL/master