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Problems with the ddk perturbation


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  • From: "Alexandra Friedrich" <Friedrich@kristall.uni-frankfurt.de>
  • To: <forum@abinit.org>
  • Subject: Problems with the ddk perturbation
  • Date: Tue, 3 Dec 2002 13:52:09 +0100
  • Organization: Uni Frankfurt

Dear ABINITioners,
 
when using ABINIT_v3.3.3 or ABINIT_v3.4.3 for DOS/Windows, I experienced some troubles with the ddk perturbation. When the first perturbation converged in tolwfr, a bug was reported and the program stopped. The bug reads:
 
At SCF step 45 max residual= 1.00E-22 < tolwfr= 1.00E-22 =>converged.
rdnpw : BUG -
At k point number 2, with spin polarization 1,
for wf file unit 13, the value of npwso_disk=******
disagrees with argument npw_k*nspinor= 7102. IO problem.
Action : contact ABINIT group.
 
I do not know how to overcome this problem as I did not change the input information from the ground-state calculation. Could anyone of you help me?
 
The input file reads:
 
ecut 25
ndtset 3
 
#GS calculation
kptopt1 1
tolvrs1 1.0d-18
iscf1 5
prtden1 1
 
#ddk RF calculation
rfelfd2 2
rfdir2 1 0 1
nqpt2 1
qpt2 0 0 0
getwfk2 1
kptopt2 2
iscf2 -3
tolwfr2 1.0d-22
 
#RF calculation with q=0
rfphon3 1
rfatpol3 1 3
rfelfd3 3
rfdir3 1 1 1
nqpt3 1
qpt3 0 0 0
kptopt3 2
getwfk3 1
getddk3 -1
iscf3 5
tolvrs3 1.0d-8
 
#######################################################################
#Common input variables
enunit 2
#Definition of the unit cell
spgroup 122
acell 5.7633 5.7633 10.6201 angstrom
brvltt -1
#Definition of the k-point grid
ngkpt 4 4 4
nshiftk 2
shiftk 0.25 0.25 0.25
-0.25 -0.25 -0.25
#Definition of the atom types
ntype 3
zatnum 47 31 34
#Definition of the atoms
natom 8
natrd 3
type 1 2 3
xred
0.000000000000 0.000000000000 0.000000000000
0.000000000000 0.000000000000 0.500000000000
0.2867 0.25 0.125
nband 26
#Definition of the SCF procedure
nstep 50
 
 
 
Thanks in advance!
Alexandra
 
----------------------------------------------------------------------
Dr. Alexandra Friedrich
Institut fuer Mineralogie, Abt. Kristallographie
J.W. Goethe Universität
Senckenberganlage 30
D-60054 Frankfurt/M.
Email:
Friedrich@kristall.uni-frankfurt.de
Phone: +49-(0)69-798 25198
Fax:      +49-(0)69-798 22101
----------------------------------------------------------------------



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