<DIV>According to your advice ,I check&nbsp;the&nbsp;parallel&nbsp;installation&nbsp;using&nbsp;a&nbsp;small&nbsp;job, and it runs well in the same node ,but when I run the big job ,it still turn up the same question .</DIV>
<DIV>Thank you for your advice .</DIV>
<DIV>Best regards<BR><BR></DIV>
<DIV></DIV><BR><PRE>在2009-09-07&nbsp;02:05:35，pw_forum-request@pwscf.org&nbsp;写道：

&gt;Subject:&nbsp;Re:&nbsp;[Pw_forum]&nbsp;pw.x&nbsp;running&nbsp;but&nbsp;nothing&nbsp;happens
&gt;To:&nbsp;PWSCF&nbsp;Forum&nbsp;&lt;pw_forum@pwscf.org&gt;
&gt;Message-ID:
&gt;        &lt;3a749910909060003k38e7f62fn4aa040900b71b42c@mail.gmail.com&gt;
&gt;Content-Type:&nbsp;text/plain;&nbsp;charset="gb2312"
&gt;
&gt;Dear&nbsp;Wangqj,
&gt;The&nbsp;same&nbsp;thing&nbsp;happens&nbsp;to&nbsp;me.
&gt;since&nbsp;you&nbsp;are&nbsp;using&nbsp;large&nbsp;no.&nbsp;of&nbsp;wfc,&nbsp;although&nbsp;it&nbsp;shows&nbsp;the&nbsp;job&nbsp;is&nbsp;running
&gt;in&nbsp;8&nbsp;procs,&nbsp;but&nbsp;sometimes&nbsp;if&nbsp;the&nbsp;installation&nbsp;is&nbsp;not&nbsp;proper,&nbsp;it&nbsp;is&nbsp;running
&gt;in&nbsp;1&nbsp;procs&nbsp;only.
&gt;
&gt;So&nbsp;better&nbsp;you&nbsp;check&nbsp;the&nbsp;parallel&nbsp;installation&nbsp;using&nbsp;a&nbsp;small&nbsp;job,&nbsp;with
&gt;different&nbsp;no.&nbsp;of&nbsp;procs&nbsp;and&nbsp;see&nbsp;whether&nbsp;its&nbsp;taking&nbsp;lesser&nbsp;time&nbsp;as&nbsp;&nbsp;no.&nbsp;of
&gt;procs&nbsp;increases&nbsp;or&nbsp;not?
&gt;
&gt;cheers
&gt;
&gt;2009/9/6&nbsp;wangqj1&nbsp;&lt;wangqj1@126.com&gt;
&gt;
&gt;&gt;
&gt;&gt;&nbsp;Dear&nbsp;pwscf&nbsp;users
&gt;&gt;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;When&nbsp;I&nbsp;run&nbsp;vc-relax&nbsp;on&nbsp;the&nbsp;computing&nbsp;cluster&nbsp;use&nbsp;one&nbsp;node&nbsp;which&nbsp;has&nbsp;8
&gt;&gt;&nbsp;CPUs.
&gt;&gt;&nbsp;The&nbsp;output&nbsp;file&nbsp;is&nbsp;as&nbsp;following:
&gt;&gt;
&gt;&gt;&nbsp;Program&nbsp;PWSCF&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;v.4.0.1&nbsp;&nbsp;starts&nbsp;...
&gt;&gt;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Today&nbsp;is&nbsp;&nbsp;6Sep2009&nbsp;at&nbsp;&nbsp;7:49:30
&gt;&gt;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Parallel&nbsp;version&nbsp;(MPI)
&gt;&gt;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Number&nbsp;of&nbsp;processors&nbsp;in&nbsp;use:&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;8
&gt;&gt;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;R&nbsp;&amp;&nbsp;G&nbsp;space&nbsp;division:&nbsp;&nbsp;proc/pool&nbsp;=&nbsp;&nbsp;&nbsp;&nbsp;8
&gt;&gt;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;For&nbsp;Norm-Conserving&nbsp;or&nbsp;Ultrasoft&nbsp;(Vanderbilt)&nbsp;Pseudopotentials&nbsp;or&nbsp;PAW
&gt;&gt;&nbsp;.....................................................................
&gt;&gt;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Initial&nbsp;potential&nbsp;from&nbsp;superposition&nbsp;of&nbsp;free&nbsp;atoms
&gt;&gt;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;starting&nbsp;charge&nbsp;&nbsp;435.99565,&nbsp;renormalised&nbsp;to&nbsp;&nbsp;436.00000
&gt;&gt;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Starting&nbsp;wfc&nbsp;are&nbsp;&nbsp;254&nbsp;atomic&nbsp;+&nbsp;&nbsp;&nbsp;&nbsp;8&nbsp;random&nbsp;wfc
&gt;&gt;
&gt;&gt;&nbsp;After&nbsp;one&nbsp;day&nbsp;,it&nbsp;still&nbsp;like&nbsp;this&nbsp;and&nbsp;no&nbsp;iteration&nbsp;has&nbsp;completed&nbsp;,there&nbsp;is
&gt;&gt;&nbsp;also&nbsp;no&nbsp;error&nbsp;was&nbsp;turn&nbsp;up&nbsp;.There&nbsp;is&nbsp;no&nbsp;error&nbsp;in&nbsp;the&nbsp;input&nbsp;file&nbsp;because&nbsp;I
&gt;&gt;&nbsp;have&nbsp;test&nbsp;it&nbsp;on&nbsp;anthoer&nbsp;computer&nbsp;which&nbsp;has&nbsp;4&nbsp;CPUs&nbsp;and&nbsp;it&nbsp;runs&nbsp;well&nbsp;.
&gt;&gt;&nbsp;I&nbsp;can't&nbsp;find&nbsp;the&nbsp;reason&nbsp;about&nbsp;this&nbsp;,any&nbsp;help&nbsp;will&nbsp;be&nbsp;appreciated&nbsp;.
&gt;&gt;&nbsp;Best&nbsp;Regards
&gt;&gt;&nbsp;Q.J.Wang
&gt;&gt;&nbsp;XiangTan&nbsp;University
&gt;&gt;
&gt;&gt;
&gt;&gt;
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