Re: [Pw_forum] Problems computing cholensky

2018-02-24 Thread William DeBenedetti
Hi Laurens, The following input file is for a 24 atom anatase (001) slab separated by 12.5 angstroms of vacuum that relaxes without error messages (at least on my system). cat > $INFILE << EOF &CONTROL calculation = 'relax', restart_mode = 'from_scratch', prefix='$PREFIX', pseudo_dir='$

[Pw_forum] MoS2 valence bands

2018-02-24 Thread Gautam Gaddemane
Hello all, I am trying to calculate the electronic band structure for monolayer MoS2 using quantum espresso.Mo and S both have 6 valence electrons, a total of 18 valence electrons in the unit cell. Hence I expect to have 9 valence bands but I see that I get 13 valence bands. I have not considered s

Re: [Pw_forum] LPZ functional in ld1.x

2018-02-24 Thread Paolo Giannozzi
The logic (or lack of it) of XC names is a little bit tricky and needs to be revised a bit. On Fri, Feb 23, 2018 at 6:55 PM, wrote: > > I accidentally typed 'LPZ' instead of 'PZ' and the code run. > > > > Quoting Paolo Giannozzi : > > > I don't think there is any such functional (in fact the cod

Re: [Pw_forum] Error: Segmentation fault - invalid memory reference.

2018-02-24 Thread Paolo Giannozzi
...and another one: does the original example work? On Sat, Feb 24, 2018 at 9:52 PM, Paolo Giannozzi wrote: > Line 227 of file export_upf.f90. There is just a piece of missing > information: code version > > On Sat, Feb 24, 2018 at 2:23 PM, BENYAHIA NEZHA > wrote: > >> Dear Quantum espresso dev

Re: [Pw_forum] Error: Segmentation fault - invalid memory reference.

2018-02-24 Thread Paolo Giannozzi
Line 227 of file export_upf.f90. There is just a piece of missing information: code version On Sat, Feb 24, 2018 at 2:23 PM, BENYAHIA NEZHA wrote: > Dear Quantum espresso developers and users, > > I'am trying to use the lda-1/2 for the first time to correct the band gap > of Sb atom, i've follow

Re: [Pw_forum] Problems computing cholensky

2018-02-24 Thread Manu Hegde
Hi, I do not know much about your system but looking quickly into the crystal structure there is something that might be causing problem. Looks like you have set ibrav=0, in that case you have to use card cell_parameters. A=xx not required. Also double check ypur system with xcrysden before startin

[Pw_forum] Error: Segmentation fault - invalid memory reference.

2018-02-24 Thread BENYAHIA NEZHA
Dear Quantum espresso developers and users, I'am trying to use the lda-1/2 for the first time to correct the band gap of Sb atom, i've followed the example of Si in the atomic code, using the inupt file: &input title='Sb', zed=51, config='[Kr] 5s2 5p3 4d10', iswitch=4

Re: [Pw_forum] Problems computing cholensky

2018-02-24 Thread Mostafa Youssef
Dear Laurens, When I get this error, it is typically due to a parallelization issue. A quick fix that worked for me is using -ndiag 1 , so for example: pw.x_location -ndiag 1 output_file. Check the manual and forums for more details. Regards, Mostafa Youssef AUC, Egypt. ___