<html><body><div style="color:#000; background-color:#fff; font-family:times new roman, new york, times, serif;font-size:12pt">Dear QE users.<br>I have been trying many times to generate projected DOS using the program projwfc.x, but i found it difficult becouse of the following error. Before i run projwfc.x, i have included the ngauss= -1 for Marzari Vandabilt and degauss = 0.02 in my inputpp . My system is GaAs on graphene. I always obtain the following error in the output file.<br> <br> <br>Program POST-PROC v.4.1.2 starts ...<br> Today is Jan201 at 0:51:28 <br><br> negative rho (up, down): 0.500E-02 0.501E-02<br><br> Gaussian broadening (read from file): ngauss,degauss= -1 0.020000<br><br><br> Calling projwave ....
<br><br> %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%<br> from davcio : error # 10<br> error while reading from file<br> %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%<br><br> stopping ...<br>I check all my temporary files and my computer memory and they are fine, but felt to understand where the problem is.<br><br>I appreciate your kind help and Advice. Thank you.<br><br>Shamsu Abubakar<br>Postgraduate student.<br>University Putra Malaysia (UPM).<br><br><div><span><br></span></div><div><br></div> <div style="font-family: times new roman, new york, times, serif; font-size: 12pt;"> <div style="font-family: times new roman, new york, times, serif; font-size: 12pt;"> <div dir="ltr"> <font face="Arial" size="2"> <hr size="1"> <b><span
style="font-weight:bold;">From:</span></b> "pw_forum-request@pwscf.org" <pw_forum-request@pwscf.org><br> <b><span style="font-weight: bold;">To:</span></b> pw_forum@pwscf.org <br> <b><span style="font-weight: bold;">Sent:</span></b> Thursday, 24 January 2013, 6:13<br> <b><span style="font-weight: bold;">Subject:</span></b> Pw_forum Digest, Vol 67, Issue 46<br> </font> </div> <br>Send Pw_forum mailing list submissions to<br> <a ymailto="mailto:pw_forum@pwscf.org" href="mailto:pw_forum@pwscf.org">pw_forum@pwscf.org</a><br><br>To subscribe or unsubscribe via the World Wide Web, visit<br> <a href="http://pwscf.org/mailman/listinfo/pw_forum" target="_blank">http://pwscf.org/mailman/listinfo/pw_forum</a><br>or, via email, send a message with subject or body 'help' to<br> <a ymailto="mailto:pw_forum-request@pwscf.org" href="mailto:pw_forum-request@pwscf.org">pw_forum-request@pwscf.org</a><br><br>You
can reach the person managing the list at<br> <a ymailto="mailto:pw_forum-owner@pwscf.org" href="mailto:pw_forum-owner@pwscf.org">pw_forum-owner@pwscf.org</a><br><br>When replying, please edit your Subject line so it is more specific<br>than "Re: Contents of Pw_forum digest..."<br><br><br>Today's Topics:<br><br> 1. Re: Fail to predict semiconductor (Iwan Darmadi)<br> 2. Re: Fail to predict semiconductor (Alexey Akimov)<br> 3. Re: GPU-QE (Filippo Spiga)<br><br><br>----------------------------------------------------------------------<br><br>Message: 1<br>Date: Wed, 23 Jan 2013 22:56:54 +0800 (SGT)<br>From: Iwan Darmadi <<a ymailto="mailto:iwan_darmadi@rocketmail.com" href="mailto:iwan_darmadi@rocketmail.com">iwan_darmadi@rocketmail.com</a>><br>Subject: Re: [Pw_forum] Fail to predict semiconductor<br>To: "<a ymailto="mailto:jcconesa@icp.csic.es" href="mailto:jcconesa@icp.csic.es">jcconesa@icp.csic.es</a>"
<<a ymailto="mailto:jcconesa@icp.csic.es" href="mailto:jcconesa@icp.csic.es">jcconesa@icp.csic.es</a>>, PWSCF Forum<br> <<a ymailto="mailto:pw_forum@pwscf.org" href="mailto:pw_forum@pwscf.org">pw_forum@pwscf.org</a>><br>Message-ID:<br> <<a ymailto="mailto:1358953014.39753.YahooMailNeo@web190403.mail.sg3.yahoo.com" href="mailto:1358953014.39753.YahooMailNeo@web190403.mail.sg3.yahoo.com">1358953014.39753.YahooMailNeo@web190403.mail.sg3.yahoo.com</a>><br>Content-Type: text/plain; charset="iso-8859-1"<br><br>?Dear Mr.Jose,<br><br>Yes, I do. But, as far as I know, transition metal doped zno is semiconductor even theoretically (according for example PRB 79/165202 and ). So I assumed that without cation vacancy, Ti doped ZnO might be semiconductor also.<br><br>Regards,<br>ID<br>***<br><br>Iwan Darmadi<br>?Undergrad.Student - Department of Physics<br><br>?Universitas
Indonesia<br><br><br>________________________________<br> From: Jose C. Conesa <<a ymailto="mailto:jcconesa@icp.csic.es" href="mailto:jcconesa@icp.csic.es">jcconesa@icp.csic.es</a>><br>To: Iwan Darmadi <<a ymailto="mailto:iwan_darmadi@rocketmail.com" href="mailto:iwan_darmadi@rocketmail.com">iwan_darmadi@rocketmail.com</a>>; PWSCF Forum <<a ymailto="mailto:pw_forum@pwscf.org" href="mailto:pw_forum@pwscf.org">pw_forum@pwscf.org</a>> <br>Sent: Wednesday, January 23, 2013 3:09 PM<br>Subject: Re: [Pw_forum] Fail to predict semiconductor<br> <br><br>Dear Iwan,<br>Do you know whether the experimentally known Ti doped ZnO contains<br> cation vacancies?<br>Good luck,<br>Jos? Carlos<br><br>El 23/01/2013 6:50, Iwan Darmadi escribi?:<br><br>Dear all,<br>><br>><br>><br>>I have calculated electronic structure of Ti doped ZnO in both GGA and GGA+U scheme. Both scheme predicts Ti doped ZnO is metallic. In contrary, Ti
doped ZnO is well known as semiconductor experimentally. At first glance, I thought it was local minimum problem of DFT+U (like FeO problem in Mr. Himmetoglu's tutorial). Then I try to copy Mr. Himmetoglu's trick to override a "suspected" fully occupied orbitals of Ti. Sadly, nothing change, ?it's still a metallic.<br>><br>><br>><br>>Now, I am confused whether this is a really local minimum problem or intrinsic limitation of DFT it self.<br>><br>><br>><br>>Do anyone here have suggestions so I can get semiconductor Ti doped ZnO in the calculation ?<br>><br>><br>><br>>Ps.<br>><br>>I have also attached my input and output file.<br>><br>>***<br>><br>>Iwan Darmadi<br>>?Undergrad.Student - Department of Physics<br>><br>>?Universitas Indonesia<br>><br>><br>><br>>_______________________________________________<br>Pw_forum mailing list <a ymailto="mailto:Pw_forum@pwscf.org"
href="mailto:Pw_forum@pwscf.org">Pw_forum@pwscf.org</a> <a href="http://pwscf.org/mailman/listinfo/pw_forum" target="_blank">http://pwscf.org/mailman/listinfo/pw_forum</a><br><br><br>-- <br>Jos? C. Conesa<br>Instituto de Cat?lisis y Petroleoqu?mica, CSIC<br>Marie Curie 2, Cantoblanco<br>28049 Madrid - Spain<br>Tel. +34-915854766<br>-------------- next part --------------<br>An HTML attachment was scrubbed...<br>URL: <a href="http://pwscf.org/pipermail/pw_forum/attachments/20130123/d52c3607/attachment-0001.html" target="_blank">http://pwscf.org/pipermail/pw_forum/attachments/20130123/d52c3607/attachment-0001.html</a> <br><br>------------------------------<br><br>Message: 2<br>Date: Wed, 23 Jan 2013 15:53:37 -0500 (EST)<br>From: Alexey Akimov <<a ymailto="mailto:aakimov@z.rochester.edu" href="mailto:aakimov@z.rochester.edu">aakimov@z.rochester.edu</a>><br>Subject: Re: [Pw_forum] Fail to predict semiconductor<br>To: Iwan Darmadi <<a
ymailto="mailto:iwan_darmadi@rocketmail.com" href="mailto:iwan_darmadi@rocketmail.com">iwan_darmadi@rocketmail.com</a>>, PWSCF Forum<br> <<a ymailto="mailto:pw_forum@pwscf.org" href="mailto:pw_forum@pwscf.org">pw_forum@pwscf.org</a>><br>Message-ID:<br> <<a ymailto="mailto:963270321.555260.1358974417264.JavaMail.root@z.rochester.edu" href="mailto:963270321.555260.1358974417264.JavaMail.root@z.rochester.edu">963270321.555260.1358974417264.JavaMail.root@z.rochester.edu</a>><br>Content-Type: text/plain; charset=utf-8<br><br>Dear Iwan,<br><br>The pure DFT is known to underestimate the band gaps, eventually making semiconductor material to appear as a metal in your calculations. This problem arises because of the double-counting in exchange terms. The problem solved with the hybrid functionals, such as PBE0. The GGA approximation and even +U correction terms provide only small improvement
over LDA. So this may not be enough to make your system to be semiconductor (computationally). To summarize,the problem is inherently with the DFT methododology.<br><br>Good luck,<br>Alexey<br><br>----- Original Message -----<br>From: "Iwan Darmadi" <<a ymailto="mailto:iwan_darmadi@rocketmail.com" href="mailto:iwan_darmadi@rocketmail.com">iwan_darmadi@rocketmail.com</a>><br>To: "pw forum" <<a ymailto="mailto:pw_forum@pwscf.org" href="mailto:pw_forum@pwscf.org">pw_forum@pwscf.org</a>><br>Sent: Wednesday, January 23, 2013 12:50:35 AM<br>Subject: [Pw_forum] Fail to predict semiconductor<br><br><br><br><br><br><br><br>Dear all, <br><br><br><br>I have calculated electronic structure of Ti doped ZnO in both GGA and GGA+U scheme. Both scheme predicts Ti doped ZnO is metallic. In contrary, Ti doped ZnO is well known as semiconductor experimentally. At first glance, I thought it was local minimum problem of DFT+U (like FeO problem in Mr. Himmetoglu's
tutorial). Then I try to copy Mr. Himmetoglu's trick to override a "suspected" fully occupied orbitals of Ti. Sadly, nothing change, it's still a metallic. <br><br><br><br>Now, I am confused whether this is a really local minimum problem or intrinsic limitation of DFT it self. <br><br><br><br>Do anyone here have suggestions so I can get semiconductor Ti doped ZnO in the calculation ? <br><br><br><br>Ps. <br><br>I have also attached my input and output file. <br><br>*** <br><br>Iwan Darmadi <br>Undergrad.Student - Department of Physics <br><br>Universitas Indonesia <br><br>_______________________________________________<br>Pw_forum mailing list<br><a ymailto="mailto:Pw_forum@pwscf.org" href="mailto:Pw_forum@pwscf.org">Pw_forum@pwscf.org</a><br><a href="http://pwscf.org/mailman/listinfo/pw_forum" target="_blank">http://pwscf.org/mailman/listinfo/pw_forum</a><br><br>-- <br>Dr. Alexey V. Akimov<br><br>Postdoctoral Research Associate<br>Department of
Chemistry<br>University of Rochester<br><br><a ymailto="mailto:aakimov@z.rochester.edu" href="mailto:aakimov@z.rochester.edu">aakimov@z.rochester.edu</a> <br><br><br>------------------------------<br><br>Message: 3<br>Date: Wed, 23 Jan 2013 22:13:32 +0000<br>From: Filippo Spiga <<a ymailto="mailto:spiga.filippo@gmail.com" href="mailto:spiga.filippo@gmail.com">spiga.filippo@gmail.com</a>><br>Subject: Re: [Pw_forum] GPU-QE<br>To: PWSCF Forum <<a ymailto="mailto:pw_forum@pwscf.org" href="mailto:pw_forum@pwscf.org">pw_forum@pwscf.org</a>><br>Message-ID: <<a ymailto="mailto:F1C8B89E-6D8E-4E85-B327-F92C1F74AB1A@gmail.com" href="mailto:F1C8B89E-6D8E-4E85-B327-F92C1F74AB1A@gmail.com">F1C8B89E-6D8E-4E85-B327-F92C1F74AB1A@gmail.com</a>><br>Content-Type: text/plain; charset="iso-8859-1"<br><br>Dear Prasenjit,<br><br>please subscribe the q-e-gpu mailing-list (link: <a href="http://qe-forge.org/mailman/listinfo/q-e-gpgpu"
target="_blank">http://qe-forge.org/mailman/listinfo/q-e-gpgpu</a> ). I look very often that specific ML because it targets only the GPU package, it is the best place to talk and discuss about QE-GPU!<br><br>Cheers,<br>Filippo<br><br>On Jan 23, 2013, at 3:09 AM, Prasenjit Ghosh <<a ymailto="mailto:prasenjit.jnc@gmail.com" href="mailto:prasenjit.jnc@gmail.com">prasenjit.jnc@gmail.com</a>> wrote:<br><br>> Hello,<br>> <br>> Is there any documentation available regarding which features of QE-5.0.2 is GPU enabled?<br>> If so can anyone provide me with a link.<br>> <br>> With regards,<br>> <br>> Prasenjit<br>> <br>> -- <br>> PRASENJIT GHOSH,<br>> IISER Pune,<br>> First floor, Central Tower, Sai Trinity Building<br>> Garware Circle, Sutarwadi, Pashan<br>> Pune, Maharashtra 411021, India<br>> <br>> Phone: +91 (20) 2590 8203<br>> Fax: +91 (20) 2589 9790<br>>
_______________________________________________<br>> Pw_forum mailing list<br>> <a ymailto="mailto:Pw_forum@pwscf.org" href="mailto:Pw_forum@pwscf.org">Pw_forum@pwscf.org</a><br>> <a href="http://pwscf.org/mailman/listinfo/pw_forum" target="_blank">http://pwscf.org/mailman/listinfo/pw_forum</a><br><br>--<br>Mr. Filippo SPIGA, M.Sc.<br><a href="http://filippospiga.me/" target="_blank">http://filippospiga.me</a> ~ skype: filippo.spiga<br><br>?Nobody will drive us out of Cantor's paradise.? ~ David Hilbert<br><br>-------------- next part --------------<br>An HTML attachment was scrubbed...<br>URL: <a href="http://pwscf.org/pipermail/pw_forum/attachments/20130123/2f8482eb/attachment.html" target="_blank">http://pwscf.org/pipermail/pw_forum/attachments/20130123/2f8482eb/attachment.html</a> <br><br>------------------------------<br><br>_______________________________________________<br>Pw_forum mailing list<br><a ymailto="mailto:Pw_forum@pwscf.org"
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