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Hi All,
I am a new VASP user. In the manual it says that PREC=High is no longer a recommended setting. Is this simply a matter of space/efficiency or does VASP do bad calculations if one uses this setting?

Thanks in advance.

Accu is the new high accuracy setting ...

Hi Alex,
Thank you for answering my question. The reason for it is when one uses the LREAL=On/Auto, then it may become necessary to tune the parameter ROPT, depending on the output for W(low)/X(q) in the OUTCAR file. When the manual discusses this output it only does so for PREC=Low, Medium, High and doesn't say anything for PREC=Accurate.

If anyone has any insights, feel free to enlighten me. I wish the manual had stated more.

I answered my own question. PREC=Accurate together with an increased ENCUT achieves the necessary result and there is no need to tune ROPT.