Merge pull request !31268 from zetongzhao/ut_cpp_helper

Merge pull request !31137 from zetongzhao/test_skip_first_epoch_sampler

Merge pull request !31269 from qujianwei/master

Merge pull request !30858 from TronZhang/refactor_cpu_factory

Merge pull request !31192 from chengang/add_send_sync

Merge pull request !30929 from DeshiChen/0307_akgkernel

Merge pull request !31158 from chengang/add_pb_to_node

Implements a temporary solution of InferShape for GraphKernel ops by
saving shape/type/format in custom attributes and decode them in InferShape function.

Merge pull request !31044 from huanghui/add-ut

Merge pull request !30942 from shenwei41/hwc_to_chw

Merge pull request !30782 from Mohammad Motallebi/failover_pushdown_skipop

Merge pull request !18945 from Wangsong95/omniglot_dataset

Merge pull request !30889 from liubuyu/master

Merge pull request !30742 from yao_yf/auto_parallel_support_not_only_2_power

Merge pull request !30746 from ZPaC/sync-route-table

Merge pull request !27943 from harshvardhangupta/save_load_at_config

Merge pull request !22608 from Wangsong95/kitti_dataset

Merge pull request !30672 from qujianwei/master

Merge pull request !30611 from ZPaC/sync-route-table

Merge pull request !18827 from Wangsong95/lfw_dataset

Merge pull request !30573 from maning202007/master

Merge pull request !30317 from zhoufeng/backend-compile-independently

Merge pull request !30238 from chenlei_autodiff/lite_callback

Fix type errors

Fix bugs

Fix cycle depth