* [ROCM] add rocm 3.5 and 3.9 dockefile, test=develop

* [ROCM] update rocm bin path, test=develop

* [ROCM] add dockerfile for rocm 3.5 amd 3.9, test=document_fix

* [ROCM] fix code stype failure, test=document_fix

* add double grad for conv_transpose

* Add approval monitor for unity_build_rule.cmake, test=develop

* fix words spell error, test=document_fix

* added UT should not exceed 15s

* fix error

* UT limit of 15s is the first to be executed

* fix error

* fix error with CI_SKIP_CPP_TEST

* modfied tiemout setting

* fix error

只检查增的情况，不检查删除情况

* remove addcmul

* remove unittest and other related code of addcmul

* fix bug

* fix merge conflict

* fix failed tests in yingchun gived list

* add unittests into static_mode_white_list

* add enable static

* fix dist unittest

* skip test_sigmoid_focal_loss_op & add gym

* revert no need skip unittests

* remove gym

* Generate code coverage reports only for incremental files, test=develop

* Generate code coverage reports only for incremental files, test=develop

* Generate code coverage reports only for incremental files, test=develop

* test for diff python file, test=develop

* fix no python diff report, test=develop

* add cc test file, test=develop

* fix bug in generic.cmake, test=develop

* for debug no cc report, test=develp

* modify compire branch form test_pr to test, test=develop

* fix bug, test=develop

* test for h file changed, test=develop

* debug for redefinition of argument optimize error, test=develop

* close -o3 for test, test=develop

* remove -o3 for test, test=develop

* remove coverage option for nvcc, test=develop

* use CMAKE_CXX_FLAGS open coverage option when header file changed, test=develop

* reopen -o3, test=develop

* remove debug code, test=develop

* remove unused code, test=develop

* Add bf16 pool2d and unify bf16 unit tests

* Add change default ops test

test=document_fix

* Add multi_gru_fuse_pass and tests

* fix date

* cleaned up headers

* polish parallel api impl & doc details

* add unittest for coverage

* remove spawn test in py2.7

* add parallel api into white list

* upgrade comment string to raw string

* fix string in

* fix string with ' '

* revert update on comments

* upgrade only necessary

* fix sample code checker

* fix comments with '''

* Add multi_gru_seq_fuse_pass and tests

* fix date

* removed unused functions

* Add bf16 matmul, fc, elementwise add and mul

* Correct unit test

* Add multi_gru op and tests

* removed redundant disable_dygraph()