[Pw_forum] the relax is to slow

wangqj1 wangqj1 at 126.com
Fri Sep 12 03:33:40 CEST 2008


 
 Dear pwscf users 
      When I use 'relax' to optimize the suppercell of 48 atoms ,it runs too slow ,in 9 hours the iterative is only 5,I think it will need 1 month to relax the suppercell like this,but I remember several months ago ,I relax the suppercell of 32 atoms ,it only needs 8 atoms .I don't know what's the reason cause this ,how can I to promote this .
      Any advice will be appreciated !
sincerely
qjwang
XiangTan University
       
      
 
 
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