* fix inference perfermence problem caused by selecting cudnn kernel for softmax

* recover use_cudnn in opmaker of softmax

* fix split fold in tess dataset

* check split and n_folds

* fix tess assert log

* fix format

* format

* remove using lodtensor part2

* resolve code format error

* resolve conflict

* resolve conflict

* replace added frameworrk tensor

* fix fused_attention fused_feedforward

* fix ci

* fix ci

* fix ci PADDLE_GET_CONST

* fix ci ut

* fix slice_assign_p jvp and transpose

* modify code style

* modify test_jvp_and_transpose for slice_assign_p

* modify code style

* add unit test

* fix dygraph higer node creation

* fix eager generator

* modify generator code

* fix eager generator

* [Eager, Performance optimization] support equal under c++ directly

* Close Wno-error of sign-compare

* fix sign-compare in graph_node_test.cc

* fix sign-compare in graph_node_test.cc file

* fix sign-compare in common_graph_table.cc file

* return proper state

* fix for dims

* fix

* add test for rsample

* add assert in test_backpropagation

* fix bug

* opt cudnn hardcode of sequence_softmax

* fix grad datatype

export all symbols for phi_function_api on paddle_inference_shared

* [CodeStyle][E231] update flake8 config

* empty commit, test=document_fix

* use dnn_fallback flag to delete mkldnn hardcode

* polish code style

* fix protected error

* fix const error

* fix reduce_op fallback

* fix pool_op fallback

* add Set function of dnn_fallback_

* [CodeStyle][py2] remove `paddle.compat`

* remove compat from `paddle.__init__`

* enable_static in sample code

* Revert "enable_static in sample code"

This reverts commit ffccaa633900154ea5f3d056e746aae9a1927399.

* enable_static in sample code

* fix bugs while cond receives dict as input

* add unittest

* change flatten -> _is_sequence_except_dict

* add author

* fix typo, encourges->encourages

* fix geometric doc

* support selected_rows kernel for multiply in dygraph

* delete useless code of slice in fluid

* fix complie bug

* move slice_array from fluid to phi

* fix strided_slice_op_npu

* gene static graph code for exp

* refactor the doc of exp

* fix bug

* fix bug

* update doc of exp

* fix sparse op

* fix log bugs

* more fix

* fix bugs