* modify api name of ps accessor

* update

* code format

* change to new api in ssync mode

* fix

* fix

* fix

* fix

* fix benchmark and communicator config

* fix bugs of the_one_ps

* multi program and fix bug in optimizer

* multi program in the_one_ps

* public commcontext

* ps optimizer multi programs

* cvm & datanorm backend

* fix dim

* fix unittest

* fix

* the one ps merge

* remove comm

* add DownpourLiteWorker

* all

* fix

* fix

* device worker downpour lite

* fix

* fix bug in global shuffle

* save inference model

* fix & add log

* fix

* remove log

* fix

* fix save summary

* fix

* fix pscore

* fix

* fix

* fix

* fix

* fix

* remove logs

* fix

* fix

* fix

* fix

* fix

* add some comments

* fix
Co-authored-by: Nesythan <esythan@126.com>

* test

* rm test

* add memory_sparse_table and brpc communication upgrade dependency

* fix

* add dense optimizer & fix dump bug & add some strategy fields

* fix

* fix

* remove thread_pool thread_queue

* add memory sparse table

* update memory sparse table

* update memory sparse table

* update cmake

* upgrade brpc_ps_client

* remove show/click_const in ctr_accessor

* fix deconstructor