* Ascend rc (#30483)

* Fix compilcation on CANN20.1 and older (#30494)

Fix compilcation on CANN20.1 and older

* Add distribution supported (#30578)

Add distribution supported

* Build praser for Hcom* operators (#30627)

Build praser for Hcom* operators

* Pass device_ids info from launch to trainer. (#30632)

Pass device_ids info from launch to trainer

* Add Hccl program group (#30642)

Add Hccl program group

* Add startup bash files of test_ascend_group. (#30645)

Add startup bash files of test_ascend_group

* cleanup (#30646)

cleanup test_ascend_group.py

* [Feature] Build parser to support distributed training (#30658)

[Feature] Build parser to support distributed training

* fix compilation on ascend-20.1 (#30722)

fix compilation on ascend-20.1

* Dev/fix ascend string (#30749)

Dev/fix ascend string

* code style (#30781)

code style

* Merge ascend_optimizer and ascend_parser. (#30776)

Merge ascend_optimizer and ascend_parser.

* Ascendrc add converted op : [range/equal/range/uniform_random/expand/squeeze], fix cast op bug  (#30797)

Ascendrc add converted op : [range/equal/range/uniform_random/expand/squeeze], fix cast op bug

* Add paddle ascend distribution training supported (#30796)

Add paddle ascend distribution training supported

* pass cxx_flags to gloo cmake (#30857)

* Destroy session first. (#30954)

Destroy session first.

* merge

* fix, test=develop

* fix, test=develop

* fix style, test=develop

* fix, test=develop

* fix

* fix log fatal, test=develop

* fix enforce style, test=develop

* fix, test=develop

* fix, test=develop

* fix rccl, test=develop

* fix test, test=develop

* fix, test=develop

* fix, test=develop

* fix, test=develop

* fix node_num, test=develop

* fix ids str, test=develop

* fix ids str, test=develop

* fix ids str, test=develop

* fix, test=develop

* fix, test=develop

* fix, test=develop

* fix, test=develop

* fix, test=develop

* fix, test=develop

* fix, test=develop

* fix, test=develop

* fix style code, test=develop

* fix style code, test=develop

* fix style code, test=develop

* fix style code, test=develop
Co-authored-by: Nhutuxian <hutuxian2011@sina.cn>
Co-authored-by: Ngongweibao <weibao.gong@gmail.com>
Co-authored-by: NVoid Main <voidmain1313113@gmail.com>
Co-authored-by: NLeo Chen <chenqiuliang@baidu.com>
Co-authored-by: Ndingsiyu <18369187719@163.com>
Co-authored-by: NOleNet <olenet@126.com>

* bugfix for warpctc

* fix warpctc commit id

* fix warpctc commit id

* fix warpctc commit id

* fix warpctc commit id

* fix warpctc commit id

* fix WARPCTC_WITH_HIP invalid

* Add logs to find out why can not dlopen libwarpctc.so

* fix warpctc commit id

* fix unit test test_warpctc_op

* Optime failed log for dlopen

* Optime failed log for dlopen

* Delete extra changes

* fix warpctc commit id

* fix warpctc commit id

* Add is_compiled_with_rocm for test_warpctc_op

* fix warpctc commit id

* Cancel optimize dlopen failed reason, move to next pr, due to it makes windows ci failed

* Cancel optimize dlopen failed reason, move to next pr, due to it makes windows ci failed

* Cancel optimize dlopen failed reason, move to next pr, due to it makes windows ci failed

* fix code style problems

* modify windows CI to VS2017

* modify windows CI to VS2017

* modify windows CI to VS2017

* Optimize compilation with Ninja, notest, test=windows_ci, test=windows_op

* no cache on windows ci, notest, test=windows_ci, test=windows_op

* delete /Zc:inline compiled in NVCC, notest, test=windows_ci, test=windows_op

* fix test_warpctc_op, notest, test=windows_ci

* remove test code, test=develop

* add float64 input to ctc_loss

* modified error message of  warpctc

* update repo and tag of warpctc

* add test for warpctc with float64 input

* modified warpctc.cmake to make sure build always

* resolved sample code bug of warpctc

* add core.ops in warpctc dygraph

* fix a bug of test

tweak the interface of cache_third_party function - expose the SOURCE_DIR for each external library (#21899)

* modify the repo address of eigen and warpctc

* fix the eigen not work on windows

* fix the eigen and warpctc can't recompile

test=develop

* add support to gcc8, add docker env test=develop

* fix the random compilation failure on windows 

* remove unused FLAGS_warpctc_dir

test=develop

* remove FLAGS_warpctc_dir

test=develop

test=develop

* "fix cuda9 error"

* "change commit id"

* "remote git tag"

* Update source files.

* Update headers

* Update

* Update

* Update

* Update

* Fix a CMake dependency

* It will sightly faster compile and make warpctc compile
well on CUDA 9 and GCC 5.5

* Add Seq2BatchFunctor, which will be used in WarpCTCOp.

* Implement WrapCTCFunctor and WrapCTCKernel.

* Add unittest of warpctc_op.

* Modify the check_output inferface in python unittest framework to allow check a subset of outputs.

* Use absolute offset lod in warpctc_op and related functors.

* Refine the comments of warpctc_op.

* The new python unittest supports checking a subset of the outputs, so revoke the previous change.

* Rename the transform from LoDTensor to Tensor with shape [max_sequence_length, num_sequences, sequence_width] to PaddingSequenceFunctor.

* Update to the newest codes.

* Rename the PaddingSequenceFunctor to PaddingLoDTensorFunctor and remove the computation of dimensions out of the functos.

* Support the build for multiple architectures at one cmake command (iOS).

* Update the documentations.

Recover the mistakenly deleted WARPCTC variable in cmake.

So that they can be found when paddle is built as a add_subdirectory project in another project.