[Bug] Inconsistent results of DSP and CPU

[Cstandardlib]

Describe the bug

KSDFT SCF yields different results (CPU VS DSP). More investigations are needed.

Known issues:

1. For the same pw_seed, their behaviors are different.
2. From the 1st step, DSP diverges from CPU.
3. ...

Expected behavior

No response

To Reproduce

ABACUS Release v3.9.0.19

Environment

No response

Additional Context

No response

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