Merge pull request !1245 from wangnan39/add_model_init_api_to_compile_df_graph_before_train_and_eval

Merge pull request !1301 from YuJianfeng/master

Merge pull request !1281 from Peilin/splitOp

Merge pull request !1342 from Tinazhang/cc

Merge pull request !1229 from yihuaijie/master

implementation 99% complete

everything and tested except for repeatable shuffling

tested most basic/typical split usecases

cleanup

some more cleanup

fix CI

more ci fix

more ci fixes

more ci fix

more ci fix

more ci fix

added more tests, fixed some bugs

some more clean up and test cases

added shard/shuffle before split warning/error

addressed code review comments and ci

fixed ci

Merge pull request !1307 from cathwong/ckw_dataset_ut_unskip2

Merge pull request !1306 from EricZ/master

Merge pull request !1318 from xiefangqi/xfq_fix_batch_log

Merge pull request !1261 from changzherui/add_tensor_init

Merge pull request !1335 from caifubi/get-device-datatype-in-memcpy

Merge pull request !1283 from changzherui/mod_ckpt_note

Merge pull request !1296 from leopz/fix_primitive

Merge pull request !1289 from GongLiyao/add_vm_support_sin_cumsum

Merge pull request !1325 from xiefangqi/xfq_fix_MSINFO

Merge pull request !1254 from caifubi/change-uintprt_t-to-void-ptr

Merge pull request !1314 from caifubi/using-context-instead-of-env

Merge pull request !1316 from 李鸿章/summary_handle_error

Merge pull request !1302 from lihongkang/master

Merge pull request !1312 from jiangjinsheng/vm_erfc

Merge pull request !1327 from chujinjin/fix_cifar_1p_test

Merge pull request !1311 from chengxb7532/master

Merge pull request !1323 from wenchunjiang/supplyment_for_construct_graph

Merge pull request !1321 from rick_sanchez/master

Merge pull request !1285 from chujinjin/fix_dropout_in_pynative

Merge pull request !1304 from amongo/AddCheckForControlDepend

Merge pull request !1322 from Chong/support_squeeze_and_reduce

Merge pull request !1324 from xulei/cppjieba0518