[CP2K-user] Do we need to adjust atomic size in constraint dft calculation

[Junbo Lu]

Hello everyone,
  I am new bird in constraint dft of CP2K. I follow this tutorial: howto:cdft 
[CP2K Open Source Molecular Dynamics ] <https://www.cp2k.org/howto:cdft> to 
run constraint dft. I have a question: do we need to adjust atomic size in 
constraint dft calculation? I do a test for water dimmer, and I find cdft 
with atomic size adjustment is better. I do not know whether we need atomic 
size adjustment for other systems.
  With my best regards,
  Junbo
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