[ControlFlow][NewExe] set Flag_control_flow_use_new_executor=true by default

[kangguangli]

PR types

Others

PR changes

OPs

Describe

The support of InterpreterCore was added for control flow ops in #45696 and #47573.
These changes were tested with model paddlenlp.transformers.InferTransformerModel. The running scripts comes from here.
Since the test results show that running control flow ops with InterpreterCore has no negative effect, we decide to make this a default behavior by set Flag_control_flow_use_new_executor 's initial value to true.

Test Results

Speed

execution time of a step	Mean	Std
InterpreterCore	3.765255368136345	0.25985690535277695
Executor	3.7777641466323364	0.3428938842422705

Accuracy

We printed the output finished_sequence of every step in both conditions and compared them.
The output was exactly same no matter which executor was used.

Memory Usage

We printed max memory usage during execution of first ten steps:

	max_memory_reserved
Unit：MB	InterpreterCore	Executor
1	26932.67236328125	28292.859619140625
2	26932.67236328125	28292.859619140625
3	26932.67236328125	28292.859619140625
4	26932.67236328125	28292.859619140625
5	26932.67236328125	28292.859619140625
6	26932.67236328125	28292.859619140625
7	26932.67236328125	28292.859619140625
8	26932.67236328125	28292.859619140625
9	26932.67236328125	28292.859619140625
10	26932.67236328125	28292.859619140625

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[zhiqiu]

LGTM