Re: [Pw_forum] DFT+U

2015-09-30 Thread Matteo Cococcioni
dear Paresh, for 2) the code does what is explained in PRB 84, 115108 (2011), which is not Ueff = U-J if you need DFT+Ueff just use 1) with U = Ueff. Best, Matteo On Sat, Sep 26, 2015 at 8:58 AM, paresh rout wrote: > Dear all, > I want to confirm DFT+U , DFT+Ueff and DFT+U+J method that quan

[Pw_forum] regarding to calculate oxidation state

2015-09-30 Thread Raj kamal
dear QE experts i am working on Lithium ion batteries. In this i need to calculate oxidation state of particular atoms Mn in such as LiMn2O4 materials. please guide me how to calculate oxidation state for particular material in QE and tags which i need to use.thanks in advance. -- *Best

Re: [Pw_forum] Carrier concentration in Si

2015-09-30 Thread Khara, Galvin
Hey there, Sorry about the long delay in my reply, I was exploring a different area of my research. I actually want to calculate the carrier concentration of Si from 300 K all the way up to 25,000 K (and potentially more). I don't understand how I could go about doing this without applying F-D

[Pw_forum] negative occupation number

2015-09-30 Thread Partha Pal
Dear PW-community, I am trying to calculate DOS (nspin=1) of hydrogen/corrugated_graphene system and I see negative occupation numbers such as "-0.0367" in my output file for "calculation='nscf'. Any thoughts ? The input file for "calculation=nscf" is calculation='nscf', title='', PSEUDO

Re: [Pw_forum] highest occupied level is higher than the lowest unoccupied level in SCF!

2015-09-30 Thread Paolo Giannozzi
On Tue, Sep 29, 2015 at 7:45 PM, Zahra Taghipour wrote: > > This is semiconductor system with a band gap of about 215 meV! > [...] However, the result of scf for the occupations is : > highest occupied, lowest unoccupied level (ev): 4.57103.9043 > > Scf calculation converged without

[Pw_forum] Nickel Silicide

2015-09-30 Thread DHIRENDRA VAIDYA
Hi, I am trying to plot density of state for Nickel Silicide. I am getting this error Error in routine descla_init (2): wrong value for computed nrcx What is it? My script is belo fname=NiSi2_Si OutDir=NiSi2_Si PREFIX=NiSi2_Si cat > $fname.scf.in < $fname.scf.out mkdir pdos ca

Re: [Pw_forum] PHonon Raman Spectra error

2015-09-30 Thread nicola varini
Ok I got what you miss: if you would like to restart with a different number of processor you must specify wf_collect=.true. as the error suggest you. Error in routine phq_readin (1): pw.x run with a different number of processors. Use wf_collect=.true. The best way to understand which

Re: [Pw_forum] difference between cpu time and wall time

2015-09-30 Thread Paolo Giannozzi
With threads, the CPU time is the sum of the CPU time spent by all threads, or something like that Paolo On Wed, Sep 30, 2015 at 1:16 PM, mohammed shambakey wrote: > Ok, thanks. > > I have a test that uses 96 physical cores WITHOUT thread. The output > recorded time is: > > PWSCF: 0

Re: [Pw_forum] difference between cpu time and wall time

2015-09-30 Thread mohammed shambakey
Ok, thanks. I have a test that uses 96 physical cores WITHOUT thread. The output recorded time is: PWSCF: 0h57m CPU1h44m WALL By running the same experiement with 96 physical cores and 2 threads per core (total 192 cores). The output recorded time is: PWSCF: 1h41

Re: [Pw_forum] difference between cpu time and wall time

2015-09-30 Thread Paolo Giannozzi
Yes: "wall time" = "what the clock on the wall shows" Paolo On Wed, Sep 30, 2015 at 12:29 PM, mohammed shambakey wrote: > Hi > > In output files, there is cpu time and wall time. Does wall time include > cpu time plus any time for transer, I/O, and any thing else? > > Regards > > -- > Mohammed

[Pw_forum] difference between cpu time and wall time

2015-09-30 Thread mohammed shambakey
Hi In output files, there is cpu time and wall time. Does wall time include cpu time plus any time for transer, I/O, and any thing else? Regards -- Mohammed ___ Pw_forum mailing list Pw_forum@pwscf.org http://pwscf.org/mailman/listinfo/pw_forum