<DIV>Dear all:</DIV>
<DIV> I have performed the Molecular dynamics with Varible-Cell <vc-md>, becuase I want relax the surface,but there is an error in the output as follwing:</DIV>
<DIV>********************************************************************************</DIV>
<DIV> G cutoff = 1028.0180 ( 150039 G-vectors) FFT grid: ( 72, 72, 81)<BR> G cutoff = 356.9507 ( 30737 G-vectors) smooth grid: ( 40, 40, 48)</DIV>
<DIV> nbndx = 1152 nbnd = 288 natomwfc = 336 npwx = 3876<BR> nelec = 480.00 nkb = 816 ngl = 150039<BR> warning: negative or imaginary core charge -0.000035 0.000000</DIV>
<DIV> Initial potential from superposition of free atoms</DIV>
<DIV> starting charge 479.98858, renormalised to 480.00000<BR> Starting wfc are atomic<BR> IOS = 161</DIV>
<DIV> %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% from davcio : error # 10<BR> i/o error in davcio<BR> %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%</DIV>
<DIV> stopping ...</DIV>
<DIV>***********************************************************************************</DIV>
<DIV> </DIV>
<DIV>Can someone tell me how to relax the surface with pwscf?</DIV>
<DIV> </DIV>
<DIV>Best wishes!</DIV><p>
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