Hello all,
i am doing a phonon calculation for a system of 60 carbon atoms. I have two 
small questions:
(1) what is the safe value that I can set to tr2_ph and get good results? I am 
doing the calculations for a tr2_ph=1.0D-10 but it is taking a long timee and I 
have got like 180 modes of irreducible representations.
(2) I am doing phonon calculations at special points (Gamma, M, X) separately. 
Is there a way to collect these to get the phonon band dispersion later?

Thanks
Elie Mouaesuniversity of NottinghamNottinghamNG7 2RD                            
          
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