[CP2K-user] SCCS Solvation Model Implementation - Molecule Radii Explodes
Dev Rana
dev.... at gmail.com
Mon May 11 15:24:38 UTC 2020
Hello,
I'm trying to simulate a single carbon atom within an aluminum block using
a solvation model for the aluminum. I can do this in a normal MD
simulation, however to reduce computation time/cost I'd like to use a
solvation model to reduce system size. Using the QS regtest-3 files as a
starting point, I've created my own input file for my, now 5 atom (Al4C)
system. I am finding that the bond lengths between my carbon and aluminum
atoms go from something reasonable to over 5 A, and that GEO_OPT is still
not complete. Any suggestions would be appreciated. I've attached the
input, output, and trajectory files for your review. I've also paste the
input below.
Best Regards,
Dev
&GLOBAL
PROJECT SolvationAl4C
RUN_TYPE geo_opt
PRINT_LEVEL medium
&END GLOBAL
&FORCE_EVAL
METHOD Quickstep
# STRESS_TENSOR analytical
&DFT
BASIS_SET_FILE_NAME /shared/centos7/cp2k/cp2k-6.1.0/data/BASIS_MOLOPT
POTENTIAL_FILE_NAME /shared/centos7/cp2k/cp2k-6.1.0/data/POTENTIAL
&QS
METHOD GPW
EPS_DEFAULT 1.0E-10
EXTRAPOLATION ASPC
&END QS
&MGRID
NGRIDS 4
CUTOFF [Ry] 600
REL_CUTOFF [Ry] 250
&RS_GRID
DISTRIBUTION_TYPE distributed
&END RS_GRID
&END MGRID
&SCCS ON
ALPHA [N*m^-1] 0.0
BETA [GPa] 1.3
DELTA_RHO 2.0E-5
DERIVATIVE_METHOD fft
DIELECTRIC_CONSTANT 80
EPS_SCCS 1.0E-3
GAMMA [mN/m] 0.0
EPS_SCF 0.0
MAX_ITER 100
! METHOD Andreussi
METHOD Fattebert-Gygi
MIXING 0.6
&ANDREUSSI
RHO_MAX 0.001
RHO_MIN 0.0001
&END ANDREUSSI
&FATTEBERT-GYGI
BETA 1.3
RHO_ZERO 0.00078
&END FATTEBERT-GYGI
&END SCCS
&SCF
SCF_GUESS ATOMIC
MAX_SCF 300
EPS_SCF 1.0E-3
! ADDED_MOS 200
! &DIAGONALIZATION
! ALGORITHM STANDARD
! &END DIAGONALIZATION
! &SMEAR TRUE
! METHOD FERMI_DIRAC
! ELECTRONIC_TEMPERATURE 300
! &END SMEAR
! &MIXING
! METHOD BROYDEN_MIXING
! ALPHA 0.1
! BETA 1.0
! NBROYDEN 8
! &END MIXING
&OT on
MINIMIZER DIIS
PRECONDITIONER FULL_SINGLE_INVERSE
&END OT
&END SCF
&XC
&XC_FUNCTIONAL PBE
&END XC_FUNCTIONAL
&END XC
&PRINT
&PDOS
&EACH
GEO_OPT 1
&END EACH
APPEND TRUE
&END PDOS
&SCCS ON
&EACH
GEO_OPT 10
&END EACH
&DENSITY_GRADIENT on
&EACH
GEO_OPT 10
&END EACH
APPEND
&END DENSITY_GRADIENT
&DIELECTRIC_FUNCTION on
&EACH
GEO_OPT 10
&END EACH
APPEND
&END DIELECTRIC_FUNCTION
&POLARISATION_POTENTIAL on
&EACH
GEO_OPT 10
&END EACH
APPEND
&END POLARISATION_POTENTIAL
&END SCCS
&END PRINT
&END DFT
&SUBSYS
&CELL
ABC [angstrom] 10 10 10
PERIODIC XYZ
MULTIPLE_UNIT_CELL 1 1 1
&END CELL
&TOPOLOGY
COORD_FILE_NAME Al4C.xyz
COORD_FILE_FORMAT XYZ
MULTIPLE_UNIT_CELL 1 1 1
&END
&KIND C
ELEMENT C
BASIS_SET DZVP-MOLOPT-GTH
POTENTIAL GTH-PBE-q4
&END KIND
&KIND Al
ELEMENT Al
BASIS_SET DZVP-MOLOPT-SR-GTH
POTENTIAL GTH-PBE-q3
&END KIND
&END SUBSYS
&END FORCE_EVAL
&MOTION
&GEO_OPT
OPTIMIZER BFGS
MAX_ITER 100
&END GEO_OPT
&PRINT
&STRUCTURE_DATA
DISTANCE 1 2
DISTANCE 1 3
DISTANCE 1 4
DISTANCE 1 5
DISTANCE 2 3
DISTANCE 2 4
DISTANCE 2 5
DISTANCE 3 4
DISTANCE 3 5
DISTANCE 4 5
ANGLE 1 2 3
ANGLE 1 2 4
ANGLE 1 2 5
ANGLE 1 3 2
ANGLE 1 3 4
ANGLE 1 3 5
ANGLE 1 4 2
ANGLE 1 4 3
ANGLE 1 4 5
ANGLE 1 5 2
ANGLE 1 5 3
ANGLE 1 5 4
&EACH
GEO_OPT 1
&END EACH
&END STRUCTURE_DATA
&TRAJECTORY
&EACH
GEO_OPT 1
&END EACH
&END TRAJECTORY
&VELOCITIES
&EACH
GEO_OPT 1
&END EACH
&END VELOCITIES
&FORCES
&EACH
GEO_OPT 1
&END EACH
&END FORCES
&CELL
&EACH
GEO_OPT 1
&END EACH
&END CELL
&RESTART
&EACH
GEO_OPT 1
&END EACH
&END RESTART
&END PRINT
&END MOTION
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