[Pw_forum] (no subject)
Rudra Banerjee
bnrj.rudra at yahoo.com
Mon Dec 3 10:52:55 CET 2007
hello friends,
i am facing a problem. i am trying to relax my system,with input file
&control
calculation='relax'
pseudo_dir = '/home/rudra/espresso_work/pseudo/',
restart_mode = 'from_scratch' ,
outdir='.'
title='Relax Water Hexamer Book Structure'
prefix='book'
tprnfor=.true.,
tstress=.true.
nstep=100,
/
&system
ibrav= 1,
celldm(1) = 24.,
nat=18,
ntyp= 2,
ecutwfc = 60.0,
ecutrho = 180.0 ,
nbnd= 52,
xc_type = 'BLYP',
/
&electrons
conv_thr = 1.d-3
/
&ions
ion_dynamics = 'bfgs' ,
upscale = 30.D0 ,
trust_radius_max = 5.0D-1 ,
trust_radius_min = 1.0D-10 ,
/
ATOMIC_SPECIES
O 16.0d0 O.BLYP.UPF
H 1.0d0 H.fpmd.UPF
ATOMIC_POSITIONS (bohr)
O -3.765850089 2.604262152 2.619442162
O 3.257666971 0.556462826 0.567981255
O 0.721513716 5.028138562 1.453740093
O 2.459939568 -1.173597129 -4.376727719
O -0.795639896 -4.762757998 -2.273327611
O -1..446214713 -2.020509104 2.240245088
H -5.130209799 3.094215504 1.480725193
H -2.297814319 3.717759149 2.145327713
H 2.001314966 -0.548297328 1.386980992
H 3.171211589 0.032349699 -1.239918611
H 1.783161893 3.503054113 1.019956064
H 0.911072560 6.158083552 0.008560339
H 1.268754221 -2.551175782 -3.887721179
H 3.858660869 -2.043651487 -5.199877530
H -2.411497662 -5.196233584 -3.045652507
H -1.249081673 -3.902600390 -0.661327634
H -2.452970050 -0.404000526 2.341480766
H -1.721709152 -2.854164227 3.859806125
K_POINTS {automatic}
2 2 2 0 0 0
whivh is returnning the error:
resetting bfgs history
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
from bfgs : error # 1
bfgs history already reset at previous step
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
stopping ...
2
i did checked the forum archive and saw that it may be caused due to high force convergence threshold (which i was giving it in previous calculati, only to return with the same error). Now,i relied on the default value and stiil its comming.......any idea why?
------
Rudra
Have a Nice Time
http://www.bose.res.in/~rudra
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