[Wien] ROTDEF error at lapw0 when applying mode distortion

urko petralanda holguin upetralanda001 at ikasle.ehu.es
Wed May 16 12:31:13 CEST 2012


Dear wien2k users,

I am trying to do a frozen phonon calculation in SBN (SrBi2Nb2Ta9).  
When I try to calculate energies of the system with distortions  
proportional to the (polar) mode gm5, some problems appear. To perform  
the initialization I apply the high symmetry system (I4/mmm) a very  
small distortion, getting a Cmc21 (group 36) structure (I use this low  
symmetry configuraiton to be able to compare energies with other mode  
distortions at the end). After initializing, I remove this small  
distortion and then create the distorted struct files for different  
amplitudes of the mode, alongside the corresponding fphonons.job file.

The calculation starts fine, reaching convergence in the energy  
calculation of the 0.00 (no distortion) case, but when jumping to the  
first distorted case it stops, giving the following error

[urko at lcpxdf gm5th2]$ cat lapw0.error
**  Error in Parallel lapw0
**  lapw0 STOPPED at lun may 14 22:09:46 CEST 2012
**  check ERROR FILES!

The STDOUT file shows something like:

[urko at lcpxdf gm5th2]$      tail -10 STDOUT
ec cc and fc_conv 1 1 1

 >   stop
Fallback to compatibility mode with "old" save_lapw
broyden files deleted, clm*, dmat*, vorb*, vresp*, eece*, scf and  
struct files saved under gm5th2_mode__0.00
ROTDEF - Error
cat: No match.

 >   stop error
ERROR status in gm5th2_mode__0.15

And the output files with errors are:

[urko at lcpxdf gm5th2]$ cat gm5th2.output0
  'ROTDEF' - no symmetry operation found.
  'ROTDEF' - for jatom, index 2 4
  'ROTDEF' - atomposition of jatom   0.5859420   0.7500000   0.5000000
  'ROTDEF' - atomposition of index   0.4140580   0.2500000   0.0003750


After getting this error, I decided to try to run scf cycles for each  
distortion in different directories. I took a file with an amplitude  
of distortion of 0.15 angstroms and another one with an amplitude of  
0.30. As expected, the first one gave the same ROTDEF ERROR in STDOUT,  
and in case.output0 but the second one (amplitude of 0.30) WENT FINE,  
reaching convergence. No errors appeared in the output or STDOUT files  
in this latter case.This makes me think that the problem arises for  
structures near high symmetry.

The rest of the relevant parameters I use are: RKmax=6.5; 27 k points  
(div:  5 5 5). I attach the fphonons.job file, where the kind of  
run_lapw calculation is shown.

I would be very grateful if you could give me some clue on the  
problem. Thank you in advance.

Attached are 3 struct files: non distorted one, structure with a  
distorion of 0.15 angstom and distorted 0.30 angstrom and the  
fphonons.job file

[urko at lcpxdf gm5th2]$ more gm5th2_mode__0.00.struct
Title
CXY LATTICE,NONEQUIV.ATOMS:  836_Cmc21
MODE OF CALC=RELA unit=bohr
  47.455577 10.425907 10.425907 90.000000 90.000000 90.000000
ATOM  -1: X=0.50000000 Y=0.75000000 Z=0.00000000
           MULT= 2          ISPLIT= 8
ATOM  -1:X= 0.50000000 Y=0.25000000 Z=0.50000000
Sr         NPT=  781  R0=0.00010000 RMT=    2.2600   Z: 38.0
LOCAL ROT MATRIX:    0.0000000 0.0000000 1.0000000
                      1.0000000 0.0000000 0.0000000
                      0.0000000 1.0000000 0.0000000
ATOM  -2: X=0.58594200 Y=0.75000000 Z=0.50000000
           MULT= 4          ISPLIT= 8
ATOM  -2:X= 0.41405800 Y=0.25000000 Z=0.00000000
ATOM  -2:X= 0.41405800 Y=0.75000000 Z=0.50000000
ATOM  -2:X= 0.58594200 Y=0.25000000 Z=0.00000000
Nb         NPT=  781  R0=0.00010000 RMT=    1.8000   Z: 41.0
LOCAL ROT MATRIX:    1.0000000 0.0000000 0.0000000
                      0.0000000 1.0000000 0.0000000
                      0.0000000 0.0000000 1.0000000
ATOM  -3: X=0.70001300 Y=0.75000000 Z=0.00000000
           MULT= 4          ISPLIT= 8
ATOM  -3:X= 0.29998700 Y=0.25000000 Z=0.50000000
ATOM  -3:X= 0.29998700 Y=0.75000000 Z=0.00000000
ATOM  -3:X= 0.70001300 Y=0.25000000 Z=0.50000000
Bi         NPT=  781  R0=0.00010000 RMT=    2.2600   Z: 83.0
LOCAL ROT MATRIX:    1.0000000 0.0000000 0.0000000
                      0.0000000 1.0000000 0.0000000
                      0.0000000 0.0000000 1.0000000
ATOM  -4: X=0.50000000 Y=0.75000000 Z=0.50000000
           MULT= 2          ISPLIT= 8
ATOM  -4:X= 0.50000000 Y=0.25000000 Z=0.00000000
O          NPT=  781  R0=0.00010000 RMT=    1.7600   Z:  8.0
LOCAL ROT MATRIX:    0.0000000 0.0000000 1.0000000
                      1.0000000 0.0000000 0.0000000
                      0.0000000 1.0000000 0.0000000
ATOM  -5: X=0.66140700 Y=0.75000000 Z=0.50000000
           MULT= 4          ISPLIT= 8
ATOM  -5:X= 0.33859300 Y=0.25000000 Z=0.00000000
ATOM  -5:X= 0.33859300 Y=0.75000000 Z=0.50000000
ATOM  -5:X= 0.66140700 Y=0.25000000 Z=0.00000000
O          NPT=  781  R0=0.00010000 RMT=    1.7600   Z:  8.0
LOCAL ROT MATRIX:    1.0000000 0.0000000 0.0000000
                      0.0000000 1.0000000 0.0000000
                      0.0000000 0.0000000 1.0000000
ATOM  -6: X=0.25000000 Y=0.00000000 Z=0.25000000
           MULT= 4          ISPLIT= 8
ATOM  -6:X= 0.75000000 Y=0.00000000 Z=0.75000000
ATOM  -6:X= 0.75000000 Y=0.00000000 Z=0.25000000
ATOM  -6:X= 0.25000000 Y=0.00000000 Z=0.75000000
O          NPT=  781  R0=0.00010000 RMT=    1.7600   Z:  8.0
LOCAL ROT MATRIX:    1.0000000 0.0000000 0.0000000
                      0.0000000 1.0000000 0.0000000
                      0.0000000 0.0000000 1.0000000
ATOM  -7: X=0.57697100 Y=0.00000000 Z=0.25000000
           MULT= 4          ISPLIT= 8
ATOM  -7:X= 0.42302900 Y=0.00000000 Z=0.75000000
ATOM  -7:X= 0.42302900 Y=0.00000000 Z=0.25000000
ATOM  -7:X= 0.57697100 Y=0.00000000 Z=0.75000000
O          NPT=  781  R0=0.00010000 RMT=    1.7600   Z:  8.0
LOCAL ROT MATRIX:    1.0000000 0.0000000 0.0000000
                      0.0000000 1.0000000 0.0000000
                      0.0000000 0.0000000 1.0000000
ATOM  -8: X=0.57697100 Y=0.50000000 Z=0.75000000
           MULT= 4          ISPLIT= 8
ATOM  -8:X= 0.42302900 Y=0.50000000 Z=0.25000000
ATOM  -8:X= 0.42302900 Y=0.50000000 Z=0.75000000
ATOM  -8:X= 0.57697100 Y=0.50000000 Z=0.25000000
O          NPT=  781  R0=0.00010000 RMT=    1.7600   Z:  8.0
LOCAL ROT MATRIX:    1.0000000 0.0000000 0.0000000
                      0.0000000 1.0000000 0.0000000
                      0.0000000 0.0000000 1.0000000
    8      NUMBER OF SYMMETRY OPERATIONS
-1 0 0 0.00000000
  0 1 0 0.00000000
  0 0-1 0.00000000
        1
-1 0 0 0.00000000
  0 1 0 0.00000000
  0 0 1 0.00000000
        2
  1 0 0 0.00000000
  0 1 0 0.00000000
  0 0-1 0.00000000
        3
  1 0 0 0.00000000
  0 1 0 0.00000000
  0 0 1 0.00000000
        4
-1 0 0 0.00000000
  0-1 0 0.00000000
  0 0 1 0.50000000
        5
  1 0 0 0.00000000
  0-1 0 0.00000000
  0 0-1 0.50000000
        6
  1 0 0 0.00000000
  0-1 0 0.00000000
  0 0 1 0.50000000
        7
-1 0 0 0.00000000
  0-1 0 0.00000000
  0 0-1 0.50000000
        8

****************************
****************************

[urko at lcpxdf gm5th2]$       more 015/015.struct
Title
CXY LATTICE,NONEQUIV.ATOMS:  836_Cmc21
MODE OF CALC=RELA unit=bohr
  47.455577 10.425907 10.425907 90.000000 90.000000 90.000000
ATOM  -1: X=0.50000000 Y=0.75000000 Z=0.99862000
           MULT= 2          ISPLIT= 8
ATOM  -1:X= 0.50000000 Y=0.25000000 Z=0.49862000
Sr         NPT=  781  R0=0.00010000 RMT=    2.2600   Z: 38.0
LOCAL ROT MATRIX:    0.0000000 0.0000000 1.0000000
                      1.0000000 0.0000000 0.0000000
                      0.0000000 1.0000000 0.0000000
ATOM  -2: X=0.58594200 Y=0.75000000 Z=0.50037500
           MULT= 4          ISPLIT= 8
ATOM  -2:X= 0.41405800 Y=0.25000000 Z=0.00037500
ATOM  -2:X= 0.41405800 Y=0.75000000 Z=0.50037500
ATOM  -2:X= 0.58594200 Y=0.25000000 Z=0.00037500
Nb         NPT=  781  R0=0.00010000 RMT=    1.8000   Z: 41.0
LOCAL ROT MATRIX:    1.0000000 0.0000000 0.0000000
                      0.0000000 1.0000000 0.0000000
                      0.0000000 0.0000000 1.0000000
ATOM  -3: X=0.70001300 Y=0.75000000 Z=0.99074500
           MULT= 4          ISPLIT= 8
ATOM  -3:X= 0.29998700 Y=0.25000000 Z=0.49074500
ATOM  -3:X= 0.29998700 Y=0.75000000 Z=0.99074500
ATOM  -3:X= 0.70001300 Y=0.25000000 Z=0.49074500
Bi         NPT=  781  R0=0.00010000 RMT=    2.2600   Z: 83.0
LOCAL ROT MATRIX:    1.0000000 0.0000000 0.0000000
                      0.0000000 1.0000000 0.0000000
                      0.0000000 0.0000000 1.0000000
ATOM  -4: X=0.50000000 Y=0.75000000 Z=0.50438000
           MULT= 2          ISPLIT= 8
ATOM  -4:X= 0.50000000 Y=0.25000000 Z=0.00438000
O          NPT=  781  R0=0.00010000 RMT=    1.7600   Z:  8.0
LOCAL ROT MATRIX:    0.0000000 0.0000000 1.0000000
                      1.0000000 0.0000000 0.0000000
                      0.0000000 1.0000000 0.0000000
ATOM  -5: X=0.66140700 Y=0.75000000 Z=0.50367500
           MULT= 4          ISPLIT= 8
ATOM  -5:X= 0.33859300 Y=0.25000000 Z=0.00367500
ATOM  -5:X= 0.33859300 Y=0.75000000 Z=0.50367500
ATOM  -5:X= 0.66140700 Y=0.25000000 Z=0.00367500
O          NPT=  781  R0=0.00010000 RMT=    1.7600   Z:  8.0
LOCAL ROT MATRIX:    1.0000000 0.0000000 0.0000000
                      0.0000000 1.0000000 0.0000000
                      0.0000000 0.0000000 1.0000000
ATOM  -6: X=0.25000000 Y=0.00000000 Z=0.24452500
           MULT= 4          ISPLIT= 8
ATOM  -6:X= 0.75000000 Y=0.00000000 Z=0.74452500
ATOM  -6:X= 0.75000000 Y=0.00000000 Z=0.24452500
ATOM  -6:X= 0.25000000 Y=0.00000000 Z=0.74452500
O          NPT=  781  R0=0.00010000 RMT=    1.7600   Z:  8.0
LOCAL ROT MATRIX:    1.0000000 0.0000000 0.0000000
                      0.0000000 1.0000000 0.0000000
                      0.0000000 0.0000000 1.0000000
ATOM  -7: X=0.57697100 Y=0.00103500 Z=0.25459000
           MULT= 4          ISPLIT= 8
ATOM  -7:X= 0.42302900 Y=0.99896500 Z=0.75459000
ATOM  -7:X= 0.42302900 Y=0.00103500 Z=0.25459000
ATOM  -7:X= 0.57697100 Y=0.99896500 Z=0.75459000
O          NPT=  781  R0=0.00010000 RMT=    1.7600   Z:  8.0
LOCAL ROT MATRIX:    1.0000000 0.0000000 0.0000000
                      0.0000000 1.0000000 0.0000000
                      0.0000000 0.0000000 1.0000000
ATOM  -8: X=0.57697100 Y=0.50103500 Z=0.75459000
           MULT= 4          ISPLIT= 8
ATOM  -8:X= 0.42302900 Y=0.49896500 Z=0.25459000
ATOM  -8:X= 0.42302900 Y=0.50103500 Z=0.75459000
ATOM  -8:X= 0.57697100 Y=0.49896500 Z=0.25459000
O          NPT=  781  R0=0.00010000 RMT=    1.7600   Z:  8.0
LOCAL ROT MATRIX:    1.0000000 0.0000000 0.0000000
                      0.0000000 1.0000000 0.0000000
                      0.0000000 0.0000000 1.0000000
    8      NUMBER OF SYMMETRY OPERATIONS
-1 0 0 0.00000000
  0 1 0 0.00000000
  0 0-1 0.00000000
        1
-1 0 0 0.00000000
  0 1 0 0.00000000
  0 0 1 0.00000000
        2
  1 0 0 0.00000000
  0 1 0 0.00000000
  0 0-1 0.00000000
        3
  1 0 0 0.00000000
  0 1 0 0.00000000
  0 0 1 0.00000000
        4
-1 0 0 0.00000000
  0-1 0 0.00000000
  0 0 1 0.50000000
        5
  1 0 0 0.00000000
  0-1 0 0.00000000
  0 0-1 0.50000000
        6
  1 0 0 0.00000000
  0-1 0 0.00000000
  0 0 1 0.50000000
        7
-1 0 0 0.00000000
  0-1 0 0.00000000
  0 0-1 0.50000000
        8

****************************
****************************

[urko at lcpxdf gm5th2]$       more 030/030.struct
Title
CXY LATTICE,NONEQUIV.ATOMS:  836_Cmc21
MODE OF CALC=RELA unit=bohr
  47.455577 10.425907 10.425907 90.000000 90.000000 90.000000
ATOM  -1: X=0.50000000 Y=0.75000000 Z=0.99724000
           MULT= 2          ISPLIT= 8
ATOM  -1:X= 0.50000000 Y=0.25000000 Z=0.49724000
Sr         NPT=  781  R0=0.00010000 RMT=    2.2600   Z: 38.0
LOCAL ROT MATRIX:    0.0000000 0.0000000 1.0000000
                      1.0000000 0.0000000 0.0000000
                      0.0000000 1.0000000 0.0000000
ATOM  -2: X=0.58594200 Y=0.75000000 Z=0.50075000
           MULT= 4          ISPLIT= 8
ATOM  -2:X= 0.41405800 Y=0.25000000 Z=0.00075000
ATOM  -2:X= 0.41405800 Y=0.75000000 Z=0.50075000
ATOM  -2:X= 0.58594200 Y=0.25000000 Z=0.00075000
Nb         NPT=  781  R0=0.00010000 RMT=    1.8000   Z: 41.0
LOCAL ROT MATRIX:    1.0000000 0.0000000 0.0000000
                      0.0000000 1.0000000 0.0000000
                      0.0000000 0.0000000 1.0000000
ATOM  -3: X=0.70001300 Y=0.75000000 Z=0.98149000
           MULT= 4          ISPLIT= 8
ATOM  -3:X= 0.29998700 Y=0.25000000 Z=0.48149000
ATOM  -3:X= 0.29998700 Y=0.75000000 Z=0.98149000
ATOM  -3:X= 0.70001300 Y=0.25000000 Z=0.48149000
Bi         NPT=  781  R0=0.00010000 RMT=    2.2600   Z: 83.0
LOCAL ROT MATRIX:    1.0000000 0.0000000 0.0000000
                      0.0000000 1.0000000 0.0000000
                      0.0000000 0.0000000 1.0000000
ATOM  -4: X=0.50000000 Y=0.75000000 Z=0.50876000
           MULT= 2          ISPLIT= 8
ATOM  -4:X= 0.50000000 Y=0.25000000 Z=0.00876000
O          NPT=  781  R0=0.00010000 RMT=    1.7600   Z:  8.0
LOCAL ROT MATRIX:    0.0000000 0.0000000 1.0000000
                      1.0000000 0.0000000 0.0000000
                      0.0000000 1.0000000 0.0000000
ATOM  -5: X=0.66140700 Y=0.75000000 Z=0.50735000
           MULT= 4          ISPLIT= 8
ATOM  -5:X= 0.33859300 Y=0.25000000 Z=0.00735000
ATOM  -5:X= 0.33859300 Y=0.75000000 Z=0.50735000
ATOM  -5:X= 0.66140700 Y=0.25000000 Z=0.00735000
O          NPT=  781  R0=0.00010000 RMT=    1.7600   Z:  8.0
LOCAL ROT MATRIX:    1.0000000 0.0000000 0.0000000
                      0.0000000 1.0000000 0.0000000
                      0.0000000 0.0000000 1.0000000
ATOM  -6: X=0.25000000 Y=0.00000000 Z=0.23905000
           MULT= 4          ISPLIT= 8
ATOM  -6:X= 0.75000000 Y=0.00000000 Z=0.73905000
ATOM  -6:X= 0.75000000 Y=0.00000000 Z=0.23905000
ATOM  -6:X= 0.25000000 Y=0.00000000 Z=0.73905000
O          NPT=  781  R0=0.00010000 RMT=    1.7600   Z:  8.0
LOCAL ROT MATRIX:    1.0000000 0.0000000 0.0000000
                      0.0000000 1.0000000 0.0000000
                      0.0000000 0.0000000 1.0000000
ATOM  -7: X=0.57697100 Y=0.00207000 Z=0.25918000
           MULT= 4          ISPLIT= 8
ATOM  -7:X= 0.42302900 Y=0.99793000 Z=0.75918000
ATOM  -7:X= 0.42302900 Y=0.00207000 Z=0.25918000
ATOM  -7:X= 0.57697100 Y=0.99793000 Z=0.75918000
O          NPT=  781  R0=0.00010000 RMT=    1.7600   Z:  8.0
LOCAL ROT MATRIX:    1.0000000 0.0000000 0.0000000
                      0.0000000 1.0000000 0.0000000
                      0.0000000 0.0000000 1.0000000
ATOM  -8: X=0.57697100 Y=0.50207000 Z=0.75918000
           MULT= 4          ISPLIT= 8
ATOM  -8:X= 0.42302900 Y=0.49793000 Z=0.25918000
ATOM  -8:X= 0.42302900 Y=0.50207000 Z=0.75918000
ATOM  -8:X= 0.57697100 Y=0.49793000 Z=0.25918000
O          NPT=  781  R0=0.00010000 RMT=    1.7600   Z:  8.0
LOCAL ROT MATRIX:    1.0000000 0.0000000 0.0000000
                      0.0000000 1.0000000 0.0000000
                      0.0000000 0.0000000 1.0000000
    8      NUMBER OF SYMMETRY OPERATIONS
-1 0 0 0.00000000
  0 1 0 0.00000000
  0 0-1 0.00000000
        1
-1 0 0 0.00000000
  0 1 0 0.00000000
  0 0 1 0.00000000
        2
  1 0 0 0.00000000
  0 1 0 0.00000000
  0 0-1 0.00000000
        3
  1 0 0 0.00000000
  0 1 0 0.00000000
  0 0 1 0.00000000
        4
-1 0 0 0.00000000
  0-1 0 0.00000000
  0 0 1 0.50000000
        5
  1 0 0 0.00000000
  0-1 0 0.00000000
  0 0-1 0.50000000
        6
  1 0 0 0.00000000
  0-1 0 0.00000000
  0 0 1 0.50000000
        7
-1 0 0 0.00000000
  0-1 0 0.00000000
  0 0-1 0.50000000
        8

*************************************
*************************************

[urko at lcpxdf gm5th2]$ more fphonons.job
#!/bin/csh -f
     #   Modify this script according to your needs:
     #      Uncomment one of the lines ...
     #      Change run_lapw to runsp_lapw or use different convergence  
criterium
     #      Change save_lapw -d XXX

     #cd DIR #do not uncomment or delete this line!

     cp gm5th2.struct gm5th2_initial.struct #backup

       foreach i (\
gm5th2_mode__0.00 \
gm5th2_mode__0.15 \
gm5th2_mode__0.30 \
gm5th2_mode__0.45 \
gm5th2_mode__0.60 \
gm5th2_mode__0.75 \
gm5th2_mode__0.90 \
gm5th2_mode__1.05 \
gm5th2_mode__1.20 \
gm5th2_mode__1.40 \
gm5th2_mode__1.60 \
)
       cp  $i.struct gm5th2.struct
    #  cp  $i.clmsum gm5th2.clmsum
    #  x dstart
    #  run_lapw -ec 0.0001 -in1new 3 -in1orig -renorm
       run_lapw -p -i 60 -ec 0.0001 -fc 0.1
       set stat = $status
       if ($stat) then
          echo ERROR status in $i
          exit 1
       endif
       save_lapw  $i
    #  save_lapw  -f -d XXX $i
    end
       cp gm5th2_initial.struct gm5th2.struct #restore



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