* 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

As the title

* base changes for split op

* 90% of split functionality added

* full fp32 functionality

* added bf16 test

* added submemory caching

* added bf test to static mode whitelist

* minor change

* enabled split op for inference

* minor fix

* minor fix

* elastic unitest

* rename demo