<div>hi everyone?</div>
<div>today i met a problem when i compute phonon :first i do scf using 6 cpu ,then i also use 6 cpu to do phono at G,BUT a problem came out in out.file :</div>
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<p> Proc/ planes cols G planes cols G columns G<br> Pool (dense grid) (smooth grid) (wavefct grid)<br> 1 5 3284 53988 4 2408 34052 719 5577<br> 2 4 3283 53987 4 2407 34051 719 5577
<br> 3 4 3283 53987 4 2407 34049 719 5577<br> 4 4 3283 53987 4 2407 34051 719 5577<br> 5 4 3283 53987 4 2407 34049 719 5577<br> 6 4 3283 53987 4 2407 34051 720 5576
<br> 0 25 19699 323923 24 14443 204303 4315 33461</p>
<p><br> nbndx = 20 nbnd = 20 natomwfc = 30 npwx = 4282<br> nelec = 40.00 nkb = 50 ngl = 10269<br>p0_9381: p4_error: net_recv read: probable EOF on socket: 1<br>Killed by signal 2.^M
<br>forrtl: error (69): process interrupted (SIGINT)<br>Killed by signal 2.^M<br>Killed by signal 2.^M<br>Killed by signal 2.^M<br>Killed by signal 2.^M<br>p0_9381: (12.363281) net_send: could not write to fd=4, errno = 32
<br>Fri Jun 8 09:41:35 CST 2007</p>
<p><font color="#ff6666">because i do not know the reason .and then i try to use 4 cpu to compute phono ,this time the error is like this</font> :</p></div>
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<div>Representation 44 1 modes - To be done</div>
<p> Representation 45 1 modes - To be done<br> IOS = 36</p>
<p> %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%<br> from davcio : error # 20<br> i/o error in davcio<br> %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
</p>
<p> stopping ...</p>
<p> %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%<br> from davcio : error # 20<br> i/o error in davcio<br> %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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<div> stopping ...<br>[0] MPI Abort by user Aborting program !<br>[0] Aborting program!<br>p0_11006: p4_error: : 0<br>Killed by signal 2.^M<br>forrtl: error (69): process interrupted (SIGINT)<br>p0_11006: (18.296875
) net_send: could not write to fd=4, errno = 32<br>Fri Jun 8 09:57:22 CST 2007</div>
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<div><font color="#ff6666">above two case ,the same input</font>:</div>
<div>phonons of fiveringwater at Gamma<br> &inputph<br> tr2_ph=1.0d-14,<br> prefix='fxx_specify_ibra_500_12+force',<br> epsil=.true.,<br> amass(1)=1.0,<br> amass(2)=15.999,<br> outdir='/raid/xx/pwscf/tmp/',
<br> fildyn='fxx.dynG',<br> /<br>0.0 0.0 0.0<br><br> </div>
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<div><font color="#ff0000">so my question is why different number of cpu can change the error ?</font></div>
<div><font color="#ff0000">befor a few days ago ,i use 2 cpu to do relax ,scf and phonon about another case ,there was well ,but now .....?</font></div>
<div><font color="#ff0000">i need your help .thanks </font><br clear="all"><br>-- <br>Xu Yuehua<br>physics Department of Nanjing university<br>China </div>