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<body class='hmmessage'><div dir='ltr'>Thank you Andrea, I will include that flag. This error showed up consistently through each system in the given example as well as the epw.x examples so that leads me to believe there is an issue with the code (I'm assuming...with trepidation). Since this is an older version I was wondering if it was a known issue that might have been resolved in the newer version, if that is the case then hopefully I will be able to find the issue while comparing the two versions. If, instead, this is a operator error (mine) and I'm totally barking up the wrong tree please let me know :)<BR>
Thank you again,<BR>
JW<BR>
<BR>
UTC<BR><BR> <BR>
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<DIV id=SkyDrivePlaceholder></DIV>> From: dalcorso@sissa.it<BR>> To: pw_forum@pwscf.org<BR>> Date: Thu, 14 Feb 2013 10:44:40 +0100<BR>> Subject: Re: [Pw_forum] symmetry not recognized<BR>> <BR>> This error usually indicates that ph.x has some difficulty to recognize<BR>> the symmetries in your system. You can skip this check and continue the<BR>> phonon calculation as in previous versions of the code by<BR>> using the flag search_sym=.false., but often the phonons are wrong in<BR>> these cases, so it would be better to understand if the symmetry group<BR>> found by pw.x and by ph.x is correct or not.<BR>> <BR>> HTH,<BR>> <BR>> Andrea<BR>> <BR>> On Wed, 2013-02-13 at 13:33 -0500, Jennifer Wohlwend wrote:<BR>> > My goal is to use epw.x but when I was trying to first complete the<BR>> > ph.x calculation I kept running into this error:<BR>> > %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%<BR>> > %%%%%%%%%<BR>> > from tipo_sym : error # 1<BR>> > symmetry not recognized<BR>> > %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%<BR>> > %%%%%%%%%<BR>> > stopping ...<BR>> > I checked the forum concerning this error but as expected the<BR>> > misplaced parenthesis had been fixed in the 4.0.3 version (only using<BR>> > such an old version b/c epw.x requires it). After encountering this<BR>> > error while testing an epw.x example I tried a pwscf example02 that<BR>> > utilizes ph.x (from version 4.0.3; The example shows how to use pw.x<BR>> > and ph.x to calculate phonon frequencies at Gamma and X for Si and C<BR>> > in the diamond structure and for fcc-Ni.) and I received the same<BR>> > error. <BR>> > Any help would be much appreciated!<BR>> > Thank you,<BR>> > J. Wohlwend<BR>> > <BR>> > Universal Technology Corporation <BR>> > <BR>> > _______________________________________________<BR>> > Pw_forum mailing list<BR>> > Pw_forum@pwscf.org<BR>> > http://pwscf.org/mailman/listinfo/pw_forum<BR>> -- <BR>> Andrea Dal Corso Tel. 0039-040-3787428<BR>> SISSA, Via Bonomea 265 Fax. 0039-040-3787249<BR>> I-34136 Trieste (Italy) e-mail: dalcorso@sissa.it<BR>> <BR>> <BR>> _______________________________________________<BR>> Pw_forum mailing list<BR>> Pw_forum@pwscf.org<BR>> http://pwscf.org/mailman/listinfo/pw_forum<BR></DIV> </div></body>
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