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</o:shapelayout></xml><![endif]--></head><body lang=EN-US link=blue vlink=purple><div class=WordSection1><p class=MsoNormal>I am running WIEN2k_14.2 (Release 15/10/2014). The clusters I use all use torque. <o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>In lapw1para_lapw, in an initial section where options are set, there is a line giving a default for “delay” of<o:p></o:p></p><p class=MsoNormal>set delay = 0.1 # delay launching of processes by n seconds<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>In a parallel_options file posted by Laurence Marks for a similar environment, this is changed to 0.25 seconds. (set delay = 0.25).<o:p></o:p></p><p class=MsoNormal>I am using a version of this file.<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Unfortunately for my runs on one cluster the actual line “sleep $delay” is commented out. This is line 559:# sleep $delay.<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>The effect of this was that frequently some of the lapw1 processes would start, but a few would fail.<o:p></o:p></p><p class=MsoNormal>(Causing the job to fail.) A consultant from the help address at Trestles suggested adding a delay of some kind so that multiple ssh connections were not attempted all at once. When I looked at lapw1para_lapw, it turned out that all I had to do was to uncomment that line. So far at least, the problem has not recurred, so I think it has made a difference.<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>I would suggest that the delay be put back in. The current 0.1 seconds seems small enough to me, but even if the default were smaller, it could be set by the user in parallel_options.<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Best,<o:p></o:p></p><p class=MsoNormal style='text-indent:4.8pt'>David<o:p></o:p></p><p class=MsoNormal style='text-indent:4.8pt'><br>David Olmsted<o:p></o:p></p><p class=MsoNormal>Assistant Research Engineer<o:p></o:p></p><p class=MsoNormal>Materials Science and Engineering<o:p></o:p></p><p class=MsoNormal>210 Hearst Memorial Mining Building<o:p></o:p></p><p class=MsoNormal>University of California<o:p></o:p></p><p class=MsoNormal>Berkeley, CA 94720-1760<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p></div></body></html>