Is it necessary in VASP to run the system upto (NSW value) it says reached required accuracy - stopping structural energy minimisation ?

Shilendra Kumar Sharma @Shilendra_Sharma2

06 June 2015 0 8K Report

My supercell is having 144 atoms if I run the system upto reached required accuracy - stopping structural energy minimisation it takes NSW=51. If I optimize system with NSW=51 it takes so much time.

So I want to know that it is necessary to run the system upto stopping structural energy minimisation or I can give less NSW value and how much less NSW.

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