HiI think it is good enough with nearly 1% error.
Regards
David
On Tuesday, December 25, 2018, 7:06:01 AM GMT+3:30, Gui Wei
<201707021...@cqu.edu.cn> wrote:
Hi, When optimizing the lattice constant of bcc Fe,the result is a=2.830A,
which is in disagreement with experimentally
Dear Friends,
With increasing cutoff of ecut and rho, scf converges very good to 0.00056RY,
but after it, I get error of cdiaghg
estimated scf accuracy < 88.51397074 Ry estimated scf accuracy
< 83.12113178 Ry
estimated scf accuracy < 71.36984815 Ry
Written on a virtual keyboard with real fingers
On Mon, 17 Dec 2018, 08:41 David Foster https://lists.quantum-espresso.org/mailman/listinfo/users
___
users mailing list
users@lists.quantum-espresso.org
https://lists.quantum-espresso.org/mailman/listinfo
HiI used revpbe to optimize Er2O3 primitive cell. Everything is OK. Now, I need
DFT+U for DOS and Band. SCF energy fluctuate as
follows:=estimated scf accuracy < 39.48681516 Ry
estimated scf accuracy < 62.66497979 Ry
estimated scf accuracy <
Hi,1- Is there any help/manual for linking elpa 2018 with QE6.3?2- Is it
possible to link them without GPU? I see that the make command search about
cuda libraries.
Thanks
___
users mailing list
users@lists.quantum-espresso.org
Dear Users,1- Is it possible to use hybrid method (such as HSE) for VC-Relax
calculation? I tested version 6.2, but I got error. Any help?
2- Which pseudopotential is suitable for HSE (I think PBE pseudo is good)?
Regards
David___
Pw_forum mailing
Dear Users,Compiling 6.2.1 version with intel cluster studio 2015 I get
following error:===
mpiifort -O2 -assume byterecl -g -traceback -nomodule -fpp -D__FFTW -D__MPI
-I/root/qe-6.2.1/include -I/root/qe-6.2.1/FoX/finclude -I../include/
-I../iotk/src
wrote:
Are you doing a relax calculation? If yes, check the upscale parameter in the
doc
--
Lorenzo Paulatto
Written on a virtual keyboard with real fingers
On Dec 6, 2017 18:28, "David Foster" <davidfoster...@yahoo.com> wrote:
HiI have set "Conv_Thr" to 1.0D-5 in m
HiI have set "Conv_Thr" to 1.0D-5 in my calculation. As you see follow, the
estimated scf change is less than 10^(-5) but it has not been converged!!! Is
there any criteria for SCF convergence in the code which has not been
documented in the manual?
==total cpu time spent up to now is
HiI have set "Conv_Thr" to 1.0D-5 in my calculation. As you see follow, the
estimated scf change is less than 10^(-5) but it has not been converged!!! Is
there any criteria for SCF convergence in the code which has not been
documented in the manual?
==total cpu time spent up to now is
HiI have set "Conv_Thr" to 1.0D-5 in my calculation. As you see follow, the
estimated scf change is less than 10^(-5) but it has not been converged!!! Is
there any criteria for SCF convergence in the code which has not been
documented in the manual?
==total cpu time spent up to now is
Dear Users,I am working on a bulk which axes are not orthogonal. I want to
relax only axes and fix the angels. Which version of "cell_dofree" is proper
for this issue?
Regards
David___
Pw_forum mailing list
Pw_forum@pwscf.org
Hi I suggest some points for you:
1-You can use ibrav=0 (instead of ibrav=1) and a big box (diameter of your
cluster+10 A in each direction). place the cluster in the center of the box.2-
reduce mixing_beta3- leave the mixing_mode to be its default value.
Regards
David
On Sunday,
Hi
I am studying electronic structure of "A2B3" compound which 'A' is a metal with
f electrons, and B is oxygen. At first, I did an antiferromagnetic VC-relax
calculation for my primitive lattice containing 16 A and 24 B. I got total
magnetization of -0.02 BM/Cell, and absolute magnetization of
Hi1- Use parallel version2- A bad converged structure (with low threshold) may
give large negative phonons.3- Use very tight SCF convergence
Regards
David
On Wednesday, November 29, 2017, 10:42:44 AM GMT+3:30, Suresh A
wrote:
Dear All,
I
HiInstead of using "Cell_dofree" for "all" use it only in your periodic
direction (z for example).
Regards
David
On Wednesday, November 29, 2017, 10:48:55 AM GMT+3:30, Anik Mondol
wrote:
Dear Users,
I am doing a DFT calculation of GaN nanowires, While
might be changed during relaxation.
Is this process right? especially for step 5. In other words, do I need to
relax lattice parameters (except z) in addition to atoms positions or not?
Regards
David Foster
Ph.D. Student of Chemistry
___
Pw_forum
Dear Mostafa
Thanks for your help.
Regards
David Foster
On Thu, 10/27/16, Mostafa Youssef <myous...@mit.edu> wrote:
Subject: Re: [Pw_forum] Charge of a supercell with a vacancy
To: "pw_forum@pwscf.org" <pw_forum@pwscf.o
Dear Users
In an Oxygen-Vacancy of a supercell of TiO2, how should I set supercell charge?
For one O-vacancy is it +2 or neutral?
In experimental works, oxygen separated and goes to the infinity with minus
charge or it is in neutral radical form?
Regards
David Foster
Thanks Mostafa, I got it :-)
Regards
David Foster
Ph.D. Student of Chemistry
On Sun, 3/20/16, Mostafa Youssef <myous...@mit.edu> wrote:
Subject: Re: [Pw_forum] vc-relax problem
To: "pw_forum@pwscf.org" <pw_forum@pwscf
, and instead use relax+changing
volume by hand :-)
Anybody can help to solve this problem?
Regards
David Foster
Ph.D. Student of Chemistry
___
Pw_forum mailing list
Pw_forum@pwscf.org
http://pwscf.org/mailman/listinfo/pw_forum
ess. Can we use them simultaneously in
one simulation run? For example, in a calculation of Alcohol+TiO2 surface, Is
it possible to choose US for carbon, PAW for Ti, and NC for O? (this is only an
example).
Regards
David Foster
Ph.D. Stude
r to
path.
However, this is ideal, and in real situations, we finally get some errors.
But, how much less should be these errors.
I took 20 images with more than 40 iterations. But, the max error is 0.6. Is it
good?
Unfortunately, the examples and tutorials for this section is low.
Regards
Da
with xcrysden, before you
run.
4- Use some graphical progrms such as GaussView, VESTA, Materials Studio, ...,
if you can not recognize the proper position of atoms.
5- Before doing anything, read manuals of the code, run its example, download
the free tutorials, do the exercises.
Regards
David Foster
/atom).
3- use very dense k-point grid in scf
4- use very low convergence threshold for scf (10^(-10) for example), and for
phonon (10^(-14))
5- if after dynmat.x, the acoustic phonons are near to 1cm-1, it is good.
6- taking care of spin-magnetization.
Regards
David Foster
Ph.D. Student
please provide your input file
Regards
David Foster
Ph.D. Student of Chemistry
On Fri, 8/7/15, Mojtaba Mirseraji <quantum.pw...@gmail.com> wrote:
Subject: [Pw_forum] Wrong k-string? in nscf+lelfield
To: Pw_forum@pwscf.org
Date: Friday, Au
x can be used for gamma point only, or it is only
for grid of q-points.
Should I use phcg.x instead of ph.x for gamma point?
Any guide will be appreciated.
Regards
David Foster
Ph.D. Student of Chemistry
___
Pw_forum mailing list
Pw_forum@pwscf.org
htt
Dear Iurri
thanks, but still two problems
1- I make html for 3 codes (davidson, eels, spectrum), but for lanczos it gives
error.
2- from makefile in root of QE5.2.0, the doc of TDDFPT are not produced due to
the
lack of option doc in TDDFPT/makefile.
Regards
David Foster
Ph.D. Student
Dear Behzad
I am not sure I understand correctly your problem. If you mean post-processing
by "restart" word, then:
You need the former files such as wfn, charge, ... you must insert correctly
the outdir and prefix in your new input file.
The xml is in outdir/prefix.save.
Rega
Dear Developers
Please add "doc" option in makefile of TDDFPT. It has been forgotten. So, "make
doc" doesn't work for this directory
For PHONON, "make doc" command only produces INPUT_PH and INPUT_D3, but not
anything for MATDYN and Q2R.
Please add these to
is in local minimum.
5- add you adsorbant on the surface, and repeat steps 3 and 4.
for DOS and BAND you need exact scf and high-k point, respectively.
Regards
David Foster
Ph.D. Student of Chemistry
On Mon, 8/3/15, Elham <e.chemistr...@gmail.
, and then change its composition (for example, doped
one atom inside it), it depends that what you want. For example, if you have a
slab for which some layers act as bulk, you should not use vc-relax. But if you
use a sheet such as graphene, you can use vc-relax but with constrain in z axis.
Regards
David
%
Error in routine write_dfile_star (1):
this subroutine produces random garbage without symmetry!
%%
%%
Error in routine write_dfile_star (1):
this subroutine produces random garbage without symmetry!
%%%%%%
+one Fe doped atom), I have 4 unpaired
electron (d6 from Fe). So, I should get total_magnetization near to 4
bohr-magneton. Is it right?
=
Regards
David Foster
Ph.D. Student of Chemistry
=
On Fri, 7/17/15, 庞瑞
=
we know that for a single electron |μS| = √3 μB, or approximately 1.73 Bohr
magnetons.
For my supercell, I have only one Fe, so, I expected to get magnetization
greater than one (for Fe atom, there is 4 unpaired electron). But, I got 0.01
Bohr-magneton. Any help?
input for a SMP system with 16 core. It was interesting and very
simple. However, I have a question:
Is it possible to use HPC tools to run the program through a windows cluster.
What should I do?
Regards
David Foster
Ph.D. Student of Chemistry
Dear Serge
Thank you for your help. I think the best judge for this issue is experimental
data for adsorption process, as you noted.
Thank you Nicola, Cyrille, and Serge for your helps.
Regards
David Foster
Ph.D. Student of Chemistry
On Fri, 12/5
, as it was
discussed in previous long discussion.
If I do according to Nicola's advice, the stress eventually reduces, but the
bottom layers positions will not be the bulk ones.
Which one is correct?
Serge, maybe in the links you have provided this issue has been addressed. I
will read them.
Regards
David Foster
second comment, I constructed the slab by using fully optimized
conventional cell (with vc-relax command). I don't think their plane
are very close. About your final comment, Do you mean I should change the
atoms positions in the z-direction and repeat z-constrained vc-relax?
Regards
0.75000 0.1562436470 0 0
End final coordinates
=====
Regards
David Foster
Ph.D. Student of Chemistry
On Thu, 12/4/14, Paolo Giannozzi <paolo.gianno...@uniud.it>
zation
.
.
==
As you see final stress is -24.51 kbar ??!!
As you know, for slab, we don't used "vc-relax", and only optimize ions
positions. What should I do to reduce the stress on the slab?
Regards
David Foster
Ph.D. Stud
the input structure
after doing vc-relax). Now, I need to change the primitive cell to its
conventional. I used xcrysden and VESTA, but they only show the primitive
structure. How can I change the QE output to its conventional cell.
Regards
David Foster
Ph.D. Student of Chemistry
automatically, users might get wrong results without any
attention.
How about a full SP GPU card for full DP code? Does code run on it?
Regards
David Foster
Ph.D. Student of Chemistry
On Sat, 6/21/14, Axel Kohlmeyer wrote:
Subject: Re: [Pw_forum] A "
Dear Tone
Thank you. It was very helpful.
Regards
David Foster
Ph.D. Student of Chemistry
On Wed, 5/28/14, Tone Kokalj wrote:
Subject: Re: [Pw_forum] ibrav7 doesn't show the structure of BaNi2As2 correctly
To: pw_forum at pwscf.org
Date
] ibrav7 doesn't show the structure of BaNi2As2 correctly
To: pw_forum at pwscf.org
Date: Wednesday, May 28, 2014, 9:25 AM
On Wed, 2014-05-28 at 08:51 -0700,
David Foster wrote:
> Dear Prof. Kokalj
> Thank you very much for your kindness. I checked the
positions that I gathered f
Dear Prof. Kokalj
Thank you for your help. The problem is solved with your help.
Thanks again.
Regards
David Foster
Ph.D. Student of Chemistry
On Wed, 5/28/14, Tone Kokalj wrote:
Subject: Re: [Pw_forum] ibrav7 doesn't show the structure
Dear Prof. Kokalj
Please change .bin extensions to .cif to see the files.
Regards
David Foster
Ph.D. Student of Chemistry
On Tue, 5/27/14, Tone Kokalj wrote:
Subject: Re: [Pw_forum] ibrav7 doesn't show the structure of BaNi2As2 correctly
primitive_p1.cif are relative to primitive translational
vectors.
It will be appreciated if you help.
PS: I generated nanotube (ibrav=12) by this method and everything is OK. If it
is necessary, I can send it too.
Thanks again, and sorry for delay.
Regards
David Foster
Ph.D. Student of Chemistry
08:21 -0700,
David Foster wrote:
> Dear Tone and Giovanni
>
> thank you for your helps. So, how can I correct crystal
positions by using v1, v2, and v3?
My advice is the following: given the fact that ibrav>0
cases always
depend on the definition of the hard-coded lattices a
Dear Tone and Giovanni
thank you for your helps. So, how can I correct crystal positions by using v1,
v2, and v3?
Regards
David Foster
Ph.D. Student of Chemistry
On Tue, 5/27/14, Giovanni Pizzi wrote:
Subject: Re: [Pw_forum] ibrav7 doesn't show
Dear Tone and Giovanni
thank you for your helps. So, how can I correct crystal positions by using v1,
v2, and v3?
Regards
David Foster
Ph.D. Student of Chemistry
On Tue, 5/27/14, Giovanni Pizzi wrote:
Subject: Re: [Pw_forum] ibrav7 doesn't show
Dear Tone and Giovanni
thank you for your helps. So, how can I correct crystal positions by using v1,
v2, and v3?
Regards
David Foster
Ph.D. Student of Chemistry
On Tue, 5/27/14, Giovanni Pizzi wrote:
Subject: Re: [Pw_forum] ibrav7 doesn't show
!!
Any help will be appreciated.
Then, I
Regards
David Foster
Ph.D. Student of Chemistry
-- next part --
A non-text attachment was scrubbed...
Name: banias_ibrav7.in
Type: application/octet-stream
Size: 843 bytes
Desc: not available
Url :
http://pwscf.org/pipermail
Dear Prof. Giannozzi
Thank you for your comments. I will correct the inputs according to your ideas.
Regards
David Foster
Ph.D. Student of Chemistry
On Wed, 4/23/14, Paolo Giannozzi wrote:
Subject: Re: [Pw_forum] fluctuation in SCF energies
Dear Raha
Sorry, I only used Windows version, and didn't install on linux.
Regards
David Foster
Ph.D. Student of Chemistry
On Mon, 4/21/14, raha khalili wrote:
Subject: Re: [Pw_forum] Fwd: au111 surface
To: "PWSCF Forum"
Date: Monday
Thank you again Axel. It was very helpful for me.
Regards
David Foster
Ph.D. Student of Chemistry
On Mon, 4/21/14, Axel Kohlmeyer wrote:
Subject: Re: [Pw_forum] fluctuation in SCF energies of CO adsorbed on Pd110
To: "PWSCF Forum&qu
plane-wave methods?
Why choosing spin-polarization causes that the energy fluctuate so much?
If I compare these two calculations (one with spin-polarization and one without
it), I should get the same energy. Is it right?
Thanks again
Any help will be appreciated.
Regards
David Foster
Ph.D
, three to four Pd atoms in the edge of cell seems to be
missing
Regards
David Foster
Ph.D. Student of Chemistry
On Sun, 4/20/14, Yun Wang wrote:
Subject: Re: [Pw_forum] fluctuation in SCF energies of CO adsorbed on Pd110
To: "PWSCF Forum&qu
Dear Raha
You can use Avogadro for constructing it. The code is free. In addition, you
can search the web to find its cif file and use it in Avogadro, if you don't
want to do it by hand.
Regards
David Foster
Ph.D. Student of Chemistry
On Sat, 4
for rapid convergence and solve the issue in fluctuation energy is
appreciated.
Regards
David Foster
Ph.D. Student of Chemistry
-- next part --
A non-text attachment was scrubbed...
Name: pd_333_co.in
Type: application/octet-stream
Size: 4488 bytes
Desc: not available
Url
for supercells.
This subject confuse me. Is there any rule for this? Any help will be
appreciated.
Regards
David Foster
Ph.D. Student of Chemistry
Thank you Paolo and Axel
I would appreciate it if anybody could guide me about my questions.
Regards
David Foster
Ph.D. Student of Chemistry
On Fri, 4/11/14, Paolo Giannozzi wrote:
Subject: Re: [Pw_forum] metal optimization tricks
don't know how.
I read input style help but confused.
Thanks again
Regards
David Foster
Ph.D. Student of Chemistry
ould fix two layers' coordination, but I
don't know how.
I read input style help but confused.
Thanks again
Regards
David Foster
Ph.D. Student of Chemistry
ould fix two layers' coordination, but I
don't know how.
I read input style help but confused.
Thanks again
Regards
David Foster
Ph.D. Student of Chemistry
Dear Users,
I have relaxed a bulk of Pd with "calculation=relax", but I get error when I
change it with
"calculation=vc-relax". I added the card needed to the input. I have attached
input and
its output containing the error.
It will be appreciated if anyone help.
Regards
near to the surface?
PS: I have calculated band structure for the plane parallel to the surface but
in the middle
point of the vacuum (far from the surface). I expected that I didn't get any
band graphs; however,
I got some. Can anybody tell me why?
Regards
David Foster
Ph.D. Student
Very thanks
Regards
David Foster
Ph.D. Student of Chemistry
On Fri, 1/10/14, xirainbow wrote:
Subject: Re: [Pw_forum] ibrav for orthorhombic space group
To: "PWSCF Forum"
Date: Friday, January 10, 2014, 6:42 AM
Dear Da
celldm(3)=c/a
v1=(a/2,b/2,c/2), v2=(-a/2,b/2,c/2), v3=(-a/2,-b/2,c/2)
===
so, it is clear that ibrav for "P" is 8, for "I" is 11 (I am not sure), for "F"
is 10.
What about "C" and "A"?
Regards
David Foster
Ph.D. Student of Chemistry
output)
3- I think in rutile, we should have 6 atoms in cell, but lorenzo's
output has 4 atoms without symbols.
Regards
David Foster
Ph.D. Student of Chemistry
On Wed, 1/8/14, Carlo Nervi wrote:
Subject: Re: [Pw_forum] Error in converting CIF
Thank you very much, Carlo.
I delete the line
The problem solved.
Thank you very much.
Regards
David Foster
Ph.D. Student of Chemistry
On Wed, 1/8/14, Carlo Nervi wrote:
Subject: Re: [Pw_forum] Error in converting CIF to QE by "cif2
Dear Paolo
Thank you for reply. I upgrade the file to 5th version.
I installed gawk 4. Now, I recieve this error:
Error in _Symmetry_equiv_pos_as_xyz. Number of fields !=3: [1]= [2]= [3]=
D:
Regards
David Foster
Ph.D. Student of Chemistry
And I run as follows:
./cif2qe.sh rutile
without .cif
Regards
David Foster
Ph.D. Student of Chemistry
On Tue, 1/7/14, Lorenzo Paulatto wrote:
Subject: Re: [Pw_forum] Error in converting CIF to QE by "cif2qe.sh"
To: "PWSC
Dear Lorenzo
Thank you for your reply. I used 5.0.2 version of QE. I didn't change anything.
I will download new version and try.
I work on Debian 7.0 which "mwak" has been installed on it. Do I need to
install "gawk" on it.
Regards
David Foster
Ph.D.
,1/2-z
1/2+y,1/2-x,1/2+z
1/2-x,1/2+y,1/2+z
1/2+x,1/2-y,1/2-z
-x,-y,-z
loop_
_atom_site_label
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
Ti 0.0 0.0 0.0
O 0.30530 0.30530 0.0
anybody can help?
Regards
David Foster
Ph.D. Student of Chemistry
Thanks Paolo. Does this subject (ignoring some symmetry operations) changes
final energy.
Regards
David Foster
Ph.D. Student of Chemistry
On Mon, 12/23/13, Paolo Giannozzi wrote:
Subject: Re: [Pw_forum] 6 symmetry operators not found in MgCl2
120, nr2=120,nr3=120
nr1s=60, nr2s=60, nr3s=60, but the problem exist.
For Al2O3 I get 6+inversion=12 symmetry operator, while it has 36 symm. op.
Regards
David Foster
Ph.D. Student of Chemistry
52196292
End final coordinates
.
.
.
.
.
=--=
JOB DONE.
=------=
Regards
David Foster
Ph.D. Student of Chemistry
Dear Giuseppe
Very thanks
Regards
David Foster
Ph.D. Student of Chemistry
Dear Axel
Very Thanks.
Regards
David Foster
Ph.D. Student of Chemistry
Hi all
One more question: In which subroutine/module overlap of atoms are checked?
Regards
David Foster
Ph.D. Student of Chemistry
On Thu, 12/19/13, david wrote:
Subject: [Pw_forum] error in relaxation Fe supercell
To: pw_forum at pwscf.org
!
stopping ...
Error in routine check_atoms (1):
atoms # 1 and # 15 overlap!
stopping ...
Error in routine check_atoms (1):
atoms # 1 and # 15 overlap!
...
I have attached them.
Regards
David Foster
Ph.D. Student
Hi
I need help
I have calculated Fermi energy of iron. It is near to 14 as one of espresso
example. But recalculation with castep (material studio) give me near to zero.
\
For metals what should be the Fermi energy, typically?
Regards
D. Foster
Ph.D. Student of Chemistry
83 matches
Mail list logo