Hello
i trying to do the test telast_2.in to calculat
#Response function calculation for:
# * rigid-atom elastic tensor
# * rigid-atom piezoelectric tensor
# * interatomic force constants at gamma
# * Born effective charges
but i'm having a convergence problem with tolwfr2 = 1.0d-20 it only get to 1.0d-15
problem with tolwfr
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