[CP2K-user] [CP2K:21793] About SCF convergence：Can first perform a pre-optimization using a larger EPS_SCF?

[Charlotte Lai]

Dear CP2K community,
While optimizing the structure of a triangular MoS₂ monolayer, I find that 
the SCF convergence cannot be pushed below the originally set EPS_SCF = 1 × 
10⁻⁶. Could experienced users advise whether it is acceptable to first 
carry out a coarse geometry optimization with EPS_SCF = 5 × 10⁻⁶, and then 
restart the calculation on the resulting structure with the tighter 
criterion EPS_SCF = 1 × 10⁻⁶ for a more accurate refinement?
Thank you in advance for any suggestions.

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