ANNEALING for a VARIABLE CELL
tfran... at gmail.com
tfran... at gmail.com
Tue Nov 7 18:07:47 UTC 2017
Dear all,
I'd like to ask help for properly setting the annealing calculation of my
molecular crystal. The ultimate goal would be description of the cell
dynamic from a high temperature monoclinic phase to low temperature
triclinic one. I would like to test both heating and cooling procedures,
with the intent to identify the collective variables to later use in a
metadynamic calculation.
So, as I set the input (heating mode) following the few examples reported,
the calculation crashes saying that in the &PRINT section the &ENERGY block
is not recognized. Can you kindly help me fix the problem or tell me I
should avoid to put in the input file?
Here the input:
&GLOBAL
PRINT_LEVEL MEDIUM
PROJECT_NAME ANN
RUN_TYPE MD
WALLTIME 23:00:00
&END GLOBAL
&MOTION
&MD
ENSEMBLE NVT
STEPS 2000
TIMESTEP 1.00
TEMPERATURE 180.0
COMVEL_TOL 1.0E-8
* ANNEALING_CELL 0.5*
# &THERMOSTAT
# TYPE CSVR
# &CSVR
# TIMECON 50
# &END CSVR
&END
&PRINT
&ENERGY
FILENAME =md.ener
&EACH
MD 1
&END EACH
&END ENERGY
&PROGRAM_RUN_INFO
&EACH
MD 1
&END EACH
&END PROGRAM_RUN_INFO
&END PRINT
&END MD
&PRINT
&TRAJECTORY
FILENAME =md.xyz
&EACH
MD 1
&END EACH
&END TRAJECTORY
&RESTART
FILENAME =md.restart
BACKUP_COPIES 0
&EACH
MD 10
&END EACH
&END RESTART
&RESTART_HISTORY
&EACH
MD 10
&END EACH
&END RESTART_HISTORY
&END PRINT
&END MOTION
&FORCE_EVAL
METHOD QS
&DFT
BASIS_SET_FILE_NAME BASIS_SET
POTENTIAL_FILE_NAME POTENTIAL
UKS T
MULTIPLICITY 1
&SCF
MAX_SCF 500
EPS_SCF 9.9999999999999995E-07
SCF_GUESS ATOMIC
&OT T
ALGORITHM IRAC
MINIMIZER DIIS
PRECONDITIONER FULL_KINETIC
&END OT
&OUTER_SCF T
EPS_SCF 9.9999999999999995E-07
MAX_SCF 10
&END OUTER_SCF
&END SCF
&QS
EPS_DEFAULT 1.0000000000000000E-10
EXTRAPOLATION ASPC
EXTRAPOLATION_ORDER 4
&END QS
&MGRID
NGRIDS 5
CUTOFF 6.0000000000000000E+02
REL_CUTOFF 6.0000000000000000E+01
&END MGRID
&XC
DENSITY_CUTOFF 1.0000000000000000E-10
GRADIENT_CUTOFF 1.0000000000000000E-10
TAU_CUTOFF 1.0000000000000000E-10
&XC_FUNCTIONAL NO_SHORTCUT
&PBE T
&END PBE
&END XC_FUNCTIONAL
&VDW_POTENTIAL
POTENTIAL_TYPE PAIR_POTENTIAL
&PAIR_POTENTIAL
TYPE DFTD3(BJ)
PARAMETER_FILE_NAME ./dftd3.dat
REFERENCE_FUNCTIONAL PBE
CALCULATE_C9_TERM T
REFERENCE_C9_TERM T
VERBOSE_OUTPUT T
&END PAIR_POTENTIAL
&END VDW_POTENTIAL
&END XC
&END DFT
&SUBSYS
&CELL
A 2.0731000000000002E+01 0.0000000000000000E+00
0.0000000000000000E+00
B 1.6600000000000000E-03 1.4442399999999999E+01
0.0000000000000000E+00
C -4.6196099999999998E+00 -6.6000000000000000E-04
1.4826380000000004E+01
PERIODIC XYZ
MULTIPLE_UNIT_CELL 1 1 1
&END CELL
&COORD
S 7.622173 0.787062 2.602696
S 10.024760 16.523216 11.155081
S 6.768842 -0.348410 9.481586
S 10.878093 17.658689 4.276192
S 9.76797 ....
....
&KIND N2
BASIS_SET TZV2P-MOLOPT-GTH
ELEMENT N
POTENTIAL GTH-PBE-q5
&POTENTIAL
2 3
0.2837905100000000E+00 2 -0.1241522559000000E+02 0.1868095920000000E+01
2
0.2554050000000000E+00 1 0.1363026257000000E+02
0.2454945300000000E+00 0
&END POTENTIAL
&BS T
&ALPHA
NEL -2
L 1
N 2
&END ALPHA
&BETA
NEL 2
L 1
N 2
&END BETA
&END BS
&END KIND
&TOPOLOGY
NUMBER_OF_ATOMS 256
MULTIPLE_UNIT_CELL 1 1 1
&END TOPOLOGY
&END SUBSYS
&END FORCE_EVAL
Thanks in advance for the help!!!
All the Best,
Tommaso
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