Dear all, Say I am working with silicon, in that ,I have done the convergence test for ecutwfc and got the optimized ecutwfc. In tutorial files it is given ecutrho = 4(ecutwfc) is the default value. For USPP ecutrho is 8-12 times ecutwfc. *Question: how I can find which is better estimate of ecutrho? that is: 8 times the ecutwfc or 12 times the ecutwfc . To find that do I need to run any convergence test for ecutrho like doing for ecutwfc?* *With thanks* Singaravelan T R
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