* make dense_contents_ lazy init

* update legacy dygraph

* fix legacy dygraph bug

* config

* fix unittest

* zero init & cache & patch config

* add barrier to save and load

* add unittest

* update brpc version;test=develop

* [XPU] add some collective ops. test=kunlun

* use XPUOpTestWrapper. test=kunlun

* skip kl1 for collective ops. fix typo: deivce -> device. test=kunlun

* back fl

* delete ssl cert

* .

* make warning

* .

* unittest paral degree

* solve unittest

* heter & multi cloud commm ready

* .

* .

* fl-ps v1.0

* .

* support N + N mode

* .

* .

* .

* .

* delete print

* .

* .

* .

* .

* fix bug

* .

* .

* fl-ps with coordinator ready

* merge dev

* update message parse only

* update fl client scheduler

* fix bug

* update multithreads sync

* fix ci errors

* update role_maker.py

* update role_maker.py

* fix ci error: windows py import error

* fix ci error: windows py import error

* fix windows ci pylib import error

* add dump fields & params

* try to fix windows import fleet error

* fix ps FLAGS error

* fix logging risk

* fix logging possible risk

* write trainer_desc file

* support split sparse params in local & remote

* fix import paddle.fluid.core.PSGPU

* fix import paddle.fluid.core.PSGPU

* add remote_sparse & local_sparse config

* fix unittest

* fix test_dist_fleet_geo table error

* fix PADDLE_ENFORCE error

* fix other's pr conflict

* [Auto Parallel] Pybind11 ProcessMesh and DeviceMesh

* [Auto Parallel] Fix the unittest problem

* [Auto Parallel] Explicitly add the src file for auto_parallel target

* [Auto Parallel] Add the proto depedency explicitly

* [Auto Parallel] Fix the cmake bug on windows and mac

* [Auto Parallel] Remove the pybind11 header file in process_mesh.h

* first refine

* second refine

* remove some code unuseful

* [Auto Parallel] Add the c++ dist attrs

* [Auto Parallel] Remove some codes to be less than 1000 lines

* save load

* save load

* add unittest

* first commit

* second commit

* third commit

* remove SaveLocalFS in memory sparse table

* save dense param

* update

* push slot

* fix push show clk: int -> float

* add unittest

* fix sample

* unittest

* add AsExtra for op

* unittest

* modify fs.py

* modify fs.py

* fix some bugs

* add dataset hdfs config

* local change

* dataset use differenct hadoop ugi/fs_name

* add

* fix conflict

* fix

* remove logs

* code style

* fix

* code style

* code style

* fix

* code style

* save_dense_param

* fix

* fix

* fix

* fix

* change momentum in dense optimzer

* fix

* fix

* change fluid => paddle.static

* remove some unuseful code
Co-authored-by: Nesythan <esythan@126.com>

* [Auto Parallel] Add ProcessMesh, DeviceMesh and DistributedMapper

* [Auto Parallel] Remove unecessary codes

* [Auto Parallel] Comment out unnecessary cmake statements

* [XPU] fleet dist_model support xpu. test=kunlun

* [XPU] fleet dist_model support xpu. test=kunlun

* move unittest file location. test=kunlun

* [CustomDevice] add custom ccl 2/2

* update

* update

* update launch

* remove cudaDeviceContext

* remove more template

* fix rocm compile

* remove alias name CUDADeviceContext

* fix compile

* fix tests

* revert changes

Co-authored-by: seemingwang <zsasuke@qq.com>
Co-authored-by: NDesmonDay <908660116@qq.com>
Co-authored-by: Nseemingwang <seemingwang@users.noreply.github.com>
Co-authored-by: NThunderbrook <a754913769@163.com>
Co-authored-by: Nxuewujiao <105861147+xuewujiao@users.noreply.github.com>
Co-authored-by: Nroot <root@yq01-sys-hic-k8s-v100-box-a225-0693.yq01.baidu.com>
Co-authored-by: NThunderbrook <52529258+Thunderbrook@users.noreply.github.com>
Co-authored-by: Nroot <root@yq01-inf-hic-k8s-a100-ab2-0009.yq01.baidu.com>
Co-authored-by: Nhuwei02 <53012141+huwei02@users.noreply.github.com>
Co-authored-by: Nyaoxuefeng <yaoxuefeng@baidu.com>
Co-authored-by: Nlxsbupt <luoxsbupt@163.com>
Co-authored-by: Nmiaoli06 <106585574+miaoli06@users.noreply.github.com>
Co-authored-by: Nroot <root@yq01-inf-hic-k8s-a100-ab2-0008.yq01.baidu.com>
Co-authored-by: Nchao9527 <33347532+chao9527@users.noreply.github.com>
Co-authored-by: Nqingshui <qshuihu@gmail.com>
Co-authored-by: Nyangjunchao <yangjunchao@baidu.com>

* init

* move CUDAStream to phi

* fix compilation

* merge develop

* add stream_owned_ member

* split cuda_stream.h

* fix cpu compile

* fix constructor

* fix bug

* fix windows compile

* fix inference test_levit

* fix windows tests

* back fl

* delete ssl cert

* .

* make warning

* .

* unittest paral degree

* solve unittest

* heter & multi cloud commm ready

* .

* .

* fl-ps v1.0

* .

* support N + N mode

* .

* .

* .

* .

* delete print

* .

* .

* .

* .

* fix bug

* .

* .

* fl-ps with coordinator ready

* merge dev

* update message parse only

* update fl client scheduler

* fix bug

* update multithreads sync

* fix ci errors

* update role_maker.py

* update role_maker.py

* fix ci error: windows py import error

* fix ci error: windows py import error

* fix windows ci pylib import error

* add dump fields & params

* try to fix windows import fleet error

* fix ps FLAGS error

* add slot attr for push sparse op

* add pybind

* remove fleet

* add unittest

* fix

* add adam/sharedadam optimzier for gpups;edit optimizer struct;test=develop

* add save_cache/patch

* add pybind

* remove pybind

* remove const_cast

* add fleet

* Rename BOOST_GET macros

* Fix conflicts

* fix conflict

* new pg apis

* add docs of new apis

* update

* fix coverage

* update

* fix bug

* fix reduce scatter

* fix api

* update
Co-authored-by: NForFishes <2282912238@qq.com>

* ssd pullsparseptr

* update codestyle

* fix init()

* delete test_device_context

* replace CPUDeviceContext with CPUContext

* fix test_scalar

* remove dot_op.cc

* fix compile