NAMD equil CP2K QM/MM

tarak karmakar tarak... at gmail.com
Sat Mar 15 06:23:33 UTC 2014


To add an observation, if I select only the organic molecule (in quantum
description) and exclude the QM water molecules in my QM/MM md run then it
is running fine.

Any suggestion?


On Fri, Mar 14, 2014 at 11:08 AM, tarak karmakar <tarak... at gmail.com>wrote:

> Dear All,
>
> I'm trying to perform a QM/MM simulation in CP2K by taking the well
> equilibrated (seeing the tot_eng, pot_eng, temperature) configuration
> obtained from classical simulation in NAMD with charmm force field.
>
> In QM/MM input file I use the simulation box lengths and its center of
> mass from the .xst file (NAMD) for a selected frame. The QM/MM input file
> is given below.
>
> &FORCE_EVAL
>   METHOD QMMM
> #..................................................
>   &DFT
>      CHARGE -3
>      ROKS
>      BASIS_SET_FILE_NAME  GTH_BASIS_SETS
>      POTENTIAL_FILE_NAME  GTH_POTENTIALS
>     &MGRID
>        CUTOFF 280
>        COMMENSURATE
>     &END MGRID
>
>     &SCF
>                     ## Max iterations and convergence limit for
> minimization
>      SCF_GUESS ATOMIC                 ##atomic,restart,random,or core
>      EPS_SCF 1.0e-6
>      MAX_SCF 250
>      &OUTER_SCF
>         MAX_SCF                10
>      &END OUTER_SCF
>
>
>       &OT ON
>
>     PRECOND_SOLVER INVERSE_CHOLESKY
>     PRECONDITIONER FULL_KINETIC
>
>     MINIMIZER CG
>     ROTATION .TRUE.
>       &END OT
>     &END SCF
>
>     &QS
>       EPS_DEFAULT 1.0E-10
>       MAP_CONSISTENT
>       EXTRAPOLATION ASPC
>       EXTRAPOLATION_ORDER 3
>     &END QS
>     &XC
>       &XC_GRID
>         XC_SMOOTH_RHO NN10
>         XC_DERIV SPLINE2_SMOOTH
>       &END XC_GRID
>       &XC_FUNCTIONAL BLYP
>       &END XC_FUNCTIONAL
>     &END XC
>     &POISSON
>       POISSON_SOLVER MULTIPOLE
>       PERIODIC NONE
>     &END POISSON
>   &END DFT
>  #.....................................................
>
>   &MM
>     &FORCEFIELD
>      parm_file_name ./omp_new_parm.pot
>       parmtype CHM
>       EI_SCALE14 1.0
>       &SPLINE
>         EMAX_SPLINE 1.0E8
>         RCUT_NB 12.0
>       &END
>     &END FORCEFIELD
>
>     &POISSON
>       &EWALD
>         EWALD_TYPE spme
>         ALPHA .5
>         GMAX 80 80 80
>         O_SPLINE 6
>       &END EWALD
>     &END POISSON
>     &PRINT
>        &FF_INFO
>        &END FF_INFO
>     &END PRINT
>   &END MM
>  #..........................................................
>
>   &QMMM
>     E_COUPL GAUSS
>     USE_GEEP_LIB  7
>
>     &WALLS
>       TYPE REFLECTIVE
>        WALL_SKIN 0.5 0.5 0.5
>     &END WALLS
>
>    &CELL
>      ABC [angstrom] 20.0 20.0 20.0
>      PERIODIC XYZ
>    &END CELL
>
>   &PERIODIC
>       GMAX 0.11
>      &MULTIPOLE
>         EWALD_PRECISION 0.000001
>         RCUT 11.0
>         ANALYTICAL_GTERM
>      &END MULTIPOLE
>    &END PERIODIC
>
>    &INTERPOLATOR
>        EPS_R 1.0e-14
>        EPS_X 1.0e-14
>        MAXITER 150
>    &END INTERPOLATOR
>
>     &QM_KIND C
>       MM_INDEX 2 3 7 9 12 14 16 20 24 32
>     &END QM_KIND
>     &QM_KIND H
>       MM_INDEX 6 10 13 15 17 19 21 23 25 26 252 253 306 307 957 958 984
> 985 1041 1042 1044 1045 1518 1519 1581 1582 1845 1846 2013 2014 2073 2074
> 2304 2305 2538 2539 3246 3247 3480 3481 4089 4090 4125 4126 4131 4132 4974
> 4975 5262 5263 5442 5443 5481 5482 5655 5656
>     &END QM_KIND
>     &QM_KIND N
>       MM_INDEX 1 5
>     &END QM_KIND
>     &QM_KIND O
>       MM_INDEX 4 8 11 18 22 27 29 30 31 33 34 251 305 956 983 1040 1043
> 1517 1580 1844 2012 2072 2303 2537 3245 3479 4088 4124 4130 4973 5261 5441
> 5480 5654
>     &END QM_KIND
>     &QM_KIND P
>       MM_INDEX 28
>     &END QM_KIND
>   &END QMMM
> #...........................................................
>
>   &SUBSYS
>     &CELL
>       ABC [angstrom] 37.9474 37.8769 37.9203
>       PERIODIC XYZ
>     &END CELL
>     &KIND H
>       BASIS_SET aug-TZV2P-GTH
>       POTENTIAL GTH-BLYP-q1
>     &END KIND
>     &KIND O
>       BASIS_SET aug-TZV2P-GTH
>       POTENTIAL GTH-BLYP-q6
>     &END KIND
>     &KIND N
>       BASIS_SET aug-TZV2P-GTH
>       POTENTIAL GTH-BLYP-q5
>     &END KIND
>     &KIND C
>       BASIS_SET aug-TZV2P-GTH
>       POTENTIAL GTH-BLYP-q4
>     &END KIND
>     &KIND P
>       BASIS_SET aug-TZV2P-GTH
>       POTENTIAL GTH-BLYP-q5
>     &END KIND
>     &TOPOLOGY
>       COORDINATE PDB
>       COORD_FILE_NAME ./omp_lig_af_400step.pdb
>       CONNECTIVITY UPSF
>       CONN_FILE_NAME ./omp_lig_c_autopsf_solv_ions.psf
>     &END
>   &END SUBSYS
> &END FORCE_EVAL
>
> #****************************************************************
> &GLOBAL
>   PROJECT omp_lig_md
>   RUN_TYPE MD
>   PRINT_LEVEL MEDIUM
> &END GLOBAL
> #**************************************************************
>
> &MOTION
>   &MD
>    ENSEMBLE NVT
>    STEPS 40000
>    TIMESTEP 0.5
>    TEMPERATURE 300
>
>   &THERMOSTAT
>       &NOSE
>         LENGTH 4
>         YOSHIDA 9
>         TIMECON 1000
>         MTS 2
>       &END NOSE
>     &END THERMOSTAT
>
>     &PRINT
>       &ENERGY
>         &EACH
>           MD 1
>         &END EACH
>       &END ENERGY
>     &END PRINT
>   &END MD
>
>   &PRINT
>     &RESTART
>       &EACH
>         MD 100
>       &END EACH
>     &END RESTART
>     &RESTART_HISTORY OFF
>     &END RESTART_HISTORY
>
>     &TRAJECTORY SILENT
>       FORMAT DCD
>       &EACH
>         MD 1
>       &END EACH
>     &END TRAJECTORY
>
>     &VELOCITIES OFF
>           LOG_PRINT_KEY T
>           FORMAT XYZ
>           UNIT angstrom
>           &EACH
>             MD 10
>           &END EACH
>           ADD_LAST NUMERIC
>     &END VELOCITIES
>
>     &FORCES OFF
>     &END FORCES
>   &END PRINT
> &END MOTION
> #....................END......................................
>
>
> My QM system comprises of an organic molecule and 23 quantum water
> molecules in a QM box of 20x20x20.
>
> While running the simulation, it showing very high temperature and then
> getting terminated with error
>
>
>
> ******************************************************************
>  *** ERROR in build_neighbor_lists (MODULE fist_neighbor_lists) ***
>  ******************************************************************
>
>  *** GEOMETRY wrong or EMAX_SPLINE too small! ***
>
>  *** Program stopped at line number 623 of MODULE fist_neighbor_lists ***
>
>  ===== Routine Calling Stack =====
>
>             7 build_neighbor_lists
>             6 build_fist_neighbor_lists
>             5 list_control
>             4 fist_force_control
>             3 velocity_verlet
>             2 qs_mol_dyn_low
>             1 CP2K
>  CP2K| Abnormal program termination, stopped by process number 2
> rank 2 in job 1  cauvery_33033   caused collective abort of all ranks
>   exit status of rank 2: return code 1
>
> I don't know why it is telling the geometry is wrong.
>
>
>
> Tarak
> Molecular Simulations Lab.
> JNCASR
> Bangalore, India
>
>
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