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<DIV> Dear pwscf users
<DIV> 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 .</DIV>
<DIV> Any advice will be appreciated !</DIV>
<DIV>sincerely</DIV>
<DIV>qjwang</DIV>
<DIV>XiangTan University</DIV>
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