* xpu scatter ut no backward

* update gather xpu ut

* fix the div 0 error of sequence_concat
* Update test_sequence_concat.py

move composite test case

remove unuseful var

add composite op blacklist

* add upsample 0d test

* update api references

* update api references

* update api reference

* support 0D Tensor for while_loop op

* update

* clean unit test

* revert test_while_loop_op.py

* test again

* remove invalid check

* fix error

* change fluid to paddle.static

* fix paddle.full

* merge forward and backward test

* simplify code

* add precision check

* fix condition var check

* add dygraph test

* add dump_walk_path  (#193)

* add dump_walk_path; test=develop

* add dump_walk_path; test=develop

* add dump_walk_path; test=develop

* Add multiple CPU communication, parameter query and merging functions, support batch alignment between multiple cards (#194)

* compatible with edge_type of src2dst and src2etype2dst (#195)

* do not merge_feature_shard when using metapath_split_opt (#198)

* support only load reverse_edge (#199)

* refactor GraphTable (#201)

* fix

* fix

* fix code style

* fix code style

* fix test_dataset

* fix hogwild worker

* fix code style

* fix code style

* fix code style

* fix code style

* fix code style.

* fix code style.

---------
Co-authored-by: Ndanleifeng <52735331+danleifeng@users.noreply.github.com>
Co-authored-by: Nqingshui <qshuihu@gmail.com>
Co-authored-by: NWebbley <liwb5@foxmail.com>
Co-authored-by: Nhuwei02 <53012141+huwei02@users.noreply.github.com>

* disable conv2d_fusion_layout_transfer_pass temporarily

* disable conv2d_fusion_layout_transfer_pass temporarily

* remove extra input of conv2d

* fix bug

* fix unittest bug

* adjust conv2d.pbtxt

* fix cpu_quantize_pass_tester

* revert use_addto of conv2d

* fix runtime attribute

* fix bug

* recover force_fp32_output in conv2d

* refine error info

* fix bug

* 为data_norm函数的input参数增加维度的判断并增加单侧

* 完善data_norm测试样例

* fix data_norm

* add_hasattri_check

* add_hasattri_check

* check tensor numel in PyObject_CheckLongOrToLong

* add unittest

* fix to_dlpack for loop

* fix reference count

* refine optimizer create accumulators

* refine

* alpha_dropout supports zero_dim

* add test