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greschd avatar greschd commented on June 8, 2024

That should be a pretty simple fix. Just out of curiosity, did you have cases where such a small change in lattice constants really makes a difference? I mean, a change in the sixth decimal place (if the constant is on the order of 1) corresponds to about 0.0001% of strain, which seems incredibly low.

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abelcarreras avatar abelcarreras commented on June 8, 2024

For phonon calculations you really need a very well converged structure. The calculation of the atomic forces has to be very accurate because this can make quite a difference in the force constants calculation. As you say this should be easy to fix so I think it's worth it.

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greschd avatar greschd commented on June 8, 2024

Sure, no real reason not to increase the precision.

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