* add get and set for Grad_scaler

* refine some API name and comments

* refine API name and comments

* refine some comments

* added matmul_v2 bf16/fp32 FWD kernel

added matmul_v2 bf16/fp32 FWD kernel

* added formatting

* removed some tests due to timeout in CI

* refactored tests

* merged tests classes into one file

* minor change

* removed test guard for CUDA

* remove skipIf

* changes after review

* formated one file

* minor change

* added skipping UT in CUDA place

* refine temp_scope_vec logic

* polish partial_program

* fix fake var

* add stop_gradient in spec

* fix fake_var

* fix unittest

* support set_device for NPU.

* minor update doc and add more unit test.

* add returns for beamsearchdecoder doc, test=document_fix

* remove heterbox

* remove heterbox

* [ROCM] fix RNN miopen as weight need to permuted, test=develop

* [ROCM] fix data share when is_test, test=develop

* update, test=develop

* fix trt flatten converter when batch_size > 1

* change ut to same dynamic shape

* fix random probability

* fix random probability

* in NPU environment, use CPUPlace for missing operators.

* in NPU environment, use CPUPlace for missing operators.

* fix TensorCopy bug and add unit test.

* fix code style.

* add more unit tests.

* - fix to #33282

* - Increased threshold for elementwise_mul_bf16 grad

* -disabled faulty UT

* - fix to approval

* support type hint

* fix unittest

* TestSaveLoadLargeParameters use cpu place.

* edit unittest