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<P><FONT SIZE=2 FACE="Arial">Dear all,</FONT>
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<P><FONT SIZE=2 FACE="Arial">I am calculating the phonon frequencies of a 20-atom system. The calculation (in parallel with 16 processors) for high symmetry points take between 90 hours and 200 hours. However, the computer system in which I'm working only allow us to run jobs for less than 24 hours; after that time it kills the job. That is way I am using the time_max variable so that the job stops smoothly. After the number of seconds I allowed it to run has been reached ( time_max = 85000) it stops showing:</FONT></P>
<P><FONT SIZE=2 FACE="Arial"> "Stopping for time limit 85048. 85000."</FONT>
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<P><FONT SIZE=2 FACE="Arial">That is like 23 hours and a half. Then, it indeed does nothing but the machines keep pretending they are doing something until the 24 hours I asked for have passed. Then, of course, I get an error file from the cluster system saying the job exceeded the allowed time etc., etc. </FONT></P>
<P><FONT SIZE=2 FACE="Arial">My question is, after the time_max has been reached (and the job stops), can I be sure that the code will safely restart later without any problem?</FONT></P>
<P><FONT SIZE=2 FACE="Arial">Before using time_max variable I wasted many hours given that sometimes the system kills the job without any problem to restart, but sometimes it spoils everything and one loses all the information previously obtained from earlier runs.</FONT></P>
<P><FONT SIZE=2 FACE="Arial">Thank you very much.</FONT>
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<P><FONT SIZE=2 FACE="Arial">Marisol Alcantara Ortigoza.</FONT>
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