1. To accelerate summary file parsing, multiple processes are used. As the first step to mindinsight parsing performance optimization, we only made changes to _load_single_file function.

2. This PR will imporve summary parsing throughput dramatically (about cpu_count times)

3. Changes are mainly about _load_single_file function

In the future, a more global concurrent computing framework is needed for mindinsight. See the gitee wiki doc for details.

Merge pull request !435 from 夏易凡/0710master

dispalyed in the table area
UI fix an issue where the table hearder could not be restored after
being dragged
UI fix an issue where the tensor page is dispalyed when you drag a table
on the dashboard page

Merge pull request !431 from 冯学峰/myhardware01

Merge pull request !430 from 黄伟锋/master

Merge pull request !433 from wangshuide/fix_ci

Merge pull request !432 from 夏易凡/0710master

1.fix an issue where the table would be displayed incorrectly when an
  error message was displayed in full screen
2.the mouse position in histogram mode is optimized
3.fix an issue where the step was displayed incorrectly when slider move
  fast

Merge pull request !426 from 黄伟锋/master

Merge pull request !429 from yelihua/dev_profiler

Merge pull request !420 from 夏易凡/0710master

!422 The model traceability judgment includes the use of the includes method, which results in the index not being obtained
Merge pull request !422 from 秦君艳/master

Merge pull request !425 from liangyongxiong/rectify-readme-hyperlink

Merge pull request !424 from zhangyunshu/zys_timeline_fixed_filenotfounderror

Merge pull request !411 from maning202007/master

Merge pull request !419 from 秦君艳/master

Merge pull request !417 from 黄伟锋/myMaster

Merge pull request !415 from 夏易凡/0710master

1.The table drawing performance is optimized when the table is automatically refreshed.
2.Fixed some self-verification issues.
3.Related error codes are added.

Merge pull request !416 from 王卫宁/wwn2

!418 Model traceability code review problem modification, method split optimization and string hard coding rectification
Merge pull request !418 from 秦君艳/master

Merge pull request !413 from wangshuide/wsd_tensor_visualization

Model traceability code review problem modification, method split optimization and string hard coding rectification

2.Code slimming

Support tensor visualization. 1.Tensor display in a table, it can support no more than two dimensions tensor visualization; 2.Tensor histogram visualization for all step in cache.

Merge pull request !412 from 夏易凡/0708master

Merge pull request !410 from zhangyunshu/zys_timeline_fixed_allreduce