[gmx-users] Drug Enzyme Tutorial - mdrun segmentation fault

Tom Joseph tom-lists at jambon.ll.cx
Wed Apr 19 17:57:12 CEST 2006


This is probably the result of a bug in 3.3, fixed in 3.3.1.  Setting  
pme_order = 4 is a workaround in case you don't want to upgrade to  
3.3.1.

--Tom

On Apr 19, 2006, at 11:05 AM, Zorzan Simone wrote:

> Hi all, I am trying to do the Drug Enzyme tutorial  
> (trp_drug_tutor.pdf),
> on a linux box (suse 10.0) and Gromacs 3.3.
>
> Everything is fine until this command:
>
> nohup mdrun -s trp_pr.tpr -o trp_pr.trr -c trp_b4md.gro -g pr.log - 
> e pr.edr
>
> That ends abnormally with a segmentation fault.
> I searched the mailing list archive but I didn't find anything  
> helpful.
>
> Has anybody tried this tutorial with Gromacs 3.3 (it's tested on  
> 3.2.1)?
>
> Any help is greatly appreciated.
>
> Zorzan Simone.
>
> pr.mdp, mdout.mdp and pr.log follows.
>
> ============================ pr.mdp ========================
>
> title               = trp_drg
> warnings            = 10
> cpp                 = /lib/cpp ; location of cpp on SGI
> define              = -DPOSRES
> constraints         = all-bonds
> integrator          = md
> dt                  = 0.002 ; ps !
> nsteps              = 10000 ; total 20.0 ps.
> nstcomm             =1
> nstxout             = 250 ; output coordinates every 0.5 ps
> nstvout             = 1000 ; output velocities every 2.0 ps
> nstfout             =0
> nstlog              = 10
> nstenergy           = 10
> nstlist             = 10
> ns_type             = grid
> rlist               = 0.9
> coulombtype         = PME
> rcoulomb            = 0.9
> rvdw                = 0.9
> fourierspacing      = 0.12
> fourier_nx        =0
> fourier_ny        =0
> fourier_nz        =0
> pme_order         =6
> ewald_rtol        = 1e-5
> optimize_fft      = yes
> ; Berendsen temperature coupling is on in four groups
> Tcoupl              = berendsen
> tau_t               = 0.1        0.1   0.1   0.1
> tc_grps             = protein    sol   IN4   Cl
> ref_t               = 300        300   300   300
> ; Pressure coupling is on
> Pcoupl              = berendsen
> pcoupltype          = isotropic
> tau_p               = 0.5
> compressibility     = 4.5e-5
> ref_p               = 1.0
> ; Generate velocites is on at 300 K.
> gen_vel             = yes
> gen_temp = 300.0
> gen_seed = 173529
>
> ============================== mdout.mdp ======================
>
> ;
> ;	File 'mdout.mdp' was generated
> ;	By user: simone (1000)
> ;	On host: linux
> ;	At date: Wed Apr 19 16:52:27 2006
> ;
>
> ; VARIOUS PREPROCESSING OPTIONS
> title                    = trp_drg
> ; Preprocessor - specify a full path if necessary.
> cpp                      = /lib/cpp
> include                  =
> define                   = -DPOSRES
>
> ; RUN CONTROL PARAMETERS
> integrator               = md
> ; Start time and timestep in ps
> tinit                    = 0
> dt                       = 0.002
> nsteps                   = 10000
> ; For exact run continuation or redoing part of a run
> init_step                = 0
> ; mode for center of mass motion removal
> comm-mode                = Linear
> ; number of steps for center of mass motion removal
> nstcomm                  = 1
> ; group(s) for center of mass motion removal
> comm-grps                =
>
> ; LANGEVIN DYNAMICS OPTIONS
> ; Friction coefficient (amu/ps) and random seed
> bd-fric                  = 0
> ld-seed                  = 1993
>
> ; ENERGY MINIMIZATION OPTIONS
> ; Force tolerance and initial step-size
> emtol                    = 10
> emstep                   = 0.01
> ; Max number of iterations in relax_shells
> niter                    = 20
> ; Step size (ps^2) for minimization of flexible constraints
> fcstep                   = 0
> ; Frequency of steepest descents steps when doing CG
> nstcgsteep               = 1000
> nbfgscorr                = 10
>
> ; OUTPUT CONTROL OPTIONS
> ; Output frequency for coords (x), velocities (v) and forces (f)
> nstxout                  = 250
> nstvout                  = 1000
> nstfout                  = 0
> ; Checkpointing helps you continue after crashes
> nstcheckpoint            = 1000
> ; Output frequency for energies to log file and energy file
> nstlog                   = 10
> nstenergy                = 10
> ; Output frequency and precision for xtc file
> nstxtcout                = 0
> xtc-precision            = 1000
> ; This selects the subset of atoms for the xtc file. You can
> ; select multiple groups. By default all atoms will be written.
> xtc-grps                 =
> ; Selection of energy groups
> energygrps               =
>
> ; NEIGHBORSEARCHING PARAMETERS
> ; nblist update frequency
> nstlist                  = 10
> ; ns algorithm (simple or grid)
> ns_type                  = grid
> ; Periodic boundary conditions: xyz (default), no (vacuum)
> ; or full (infinite systems only)
> pbc                      = xyz
> ; nblist cut-off
> rlist                    = 0.9
> domain-decomposition     = no
>
> ; OPTIONS FOR ELECTROSTATICS AND VDW
> ; Method for doing electrostatics
> coulombtype              = PME
> rcoulomb-switch          = 0
> rcoulomb                 = 0.9
> ; Relative dielectric constant for the medium and the reaction field
> epsilon_r                = 1
> epsilon_rf               = 1
> ; Method for doing Van der Waals
> vdw-type                 = Cut-off
> ; cut-off lengths
> rvdw-switch              = 0
> rvdw                     = 0.9
> ; Apply long range dispersion corrections for Energy and Pressure
> DispCorr                 = No
> ; Extension of the potential lookup tables beyond the cut-off
> table-extension          = 1
> ; Seperate tables between energy group pairs
> energygrp_table          =
> ; Spacing for the PME/PPPM FFT grid
> fourierspacing           = 0.12
> ; FFT grid size, when a value is 0 fourierspacing will be used
> fourier_nx               = 0
> fourier_ny               = 0
> fourier_nz               = 0
> ; EWALD/PME/PPPM parameters
> pme_order                = 6
> ewald_rtol               = 1e-5
> ewald_geometry           = 3d
> epsilon_surface          = 0
> optimize_fft             = yes
>
> ; GENERALIZED BORN ELECTROSTATICS
> ; Algorithm for calculating Born radii
> gb_algorithm             = Still
> ; Frequency of calculating the Born radii inside rlist
> nstgbradii               = 1
> ; Cutoff for Born radii calculation; the contribution from atoms
> ; between rlist and rgbradii is updated every nstlist steps
> rgbradii                 = 2
> ; Salt concentration in M for Generalized Born models
> gb_saltconc              = 0
>
> ; IMPLICIT SOLVENT (for use with Generalized Born electrostatics)
> implicit_solvent         = No
>
> ; OPTIONS FOR WEAK COUPLING ALGORITHMS
> ; Temperature coupling
> Tcoupl                   = berendsen
> ; Groups to couple separately
> tc_grps                  = protein    sol   IN4   Cl
> ; Time constant (ps) and reference temperature (K)
> tau_t                    = 0.1        0.1   0.1   0.1
> ref_t                    = 300        300   300   300
> ; Pressure coupling
> Pcoupl                   = berendsen
> pcoupltype               = isotropic
> ; Time constant (ps), compressibility (1/bar) and reference P (bar)
> tau_p                    = 0.5
> compressibility          = 4.5e-5
> ref_p                    = 1.0
> ; Random seed for Andersen thermostat
> andersen_seed            = 815131
>
> ; OPTIONS FOR QMMM calculations
> QMMM                     = no
> ; Groups treated Quantum Mechanically
> QMMM-grps                =
> ; QM method
> QMmethod                 =
> ; QMMM scheme
> QMMMscheme               = normal
> ; QM basisset
> QMbasis                  =
> ; QM charge
> QMcharge                 =
> ; QM multiplicity
> QMmult                   =
> ; Surface Hopping
> SH                       =
> ; CAS space options
> CASorbitals              =
> CASelectrons             =
> SAon                     =
> SAoff                    =
> SAsteps                  =
> ; Scale factor for MM charges
> MMChargeScaleFactor      = 1
> ; Optimization of QM subsystem
> bOPT                     =
> bTS                      =
>
> ; SIMULATED ANNEALING
> ; Type of annealing for each temperature group (no/single/periodic)
> annealing                =
> ; Number of time points to use for specifying annealing in each group
> annealing_npoints        =
> ; List of times at the annealing points for each group
> annealing_time           =
> ; Temp. at each annealing point, for each group.
> annealing_temp           =
>
> ; GENERATE VELOCITIES FOR STARTUP RUN
> gen_vel                  = yes
> gen_temp                 = 300.0
> gen_seed                 = 173529
>
> ; OPTIONS FOR BONDS
> constraints              = all-bonds
> ; Type of constraint algorithm
> constraint-algorithm     = Lincs
> ; Do not constrain the start configuration
> unconstrained-start      = no
> ; Use successive overrelaxation to reduce the number of shake  
> iterations
> Shake-SOR                = no
> ; Relative tolerance of shake
> shake-tol                = 1e-04
> ; Highest order in the expansion of the constraint coupling matrix
> lincs-order              = 4
> ; Number of iterations in the final step of LINCS. 1 is fine for
> ; normal simulations, but use 2 to conserve energy in NVE runs.
> ; For energy minimization with constraints it should be 4 to 8.
> lincs-iter               = 1
> ; Lincs will write a warning to the stderr if in one step a bond
> ; rotates over more degrees than
> lincs-warnangle          = 30
> ; Convert harmonic bonds to morse potentials
> morse                    = no
>
> ; ENERGY GROUP EXCLUSIONS
> ; Pairs of energy groups for which all non-bonded interactions are  
> excluded
> energygrp_excl           =
>
> ; NMR refinement stuff
> ; Distance restraints type: No, Simple or Ensemble
> disre                    = No
> ; Force weighting of pairs in one distance restraint: Conservative  
> or Equal
> disre-weighting          = Conservative
> ; Use sqrt of the time averaged times the instantaneous violation
> disre-mixed              = no
> disre-fc                 = 1000
> disre-tau                = 0
> ; Output frequency for pair distances to energy file
> nstdisreout              = 100
> ; Orientation restraints: No or Yes
> orire                    = no
> ; Orientation restraints force constant and tau for time averaging
> orire-fc                 = 0
> orire-tau                = 0
> orire-fitgrp             =
> ; Output frequency for trace(SD) and S to energy file
> nstorireout              = 100
> ; Dihedral angle restraints: No, Simple or Ensemble
> dihre                    = No
> dihre-fc                 = 1000
> dihre-tau                = 0
> ; Output frequency for dihedral values to energy file
> nstdihreout              = 100
>
> ; Free energy control stuff
> free-energy              = no
> init-lambda              = 0
> delta-lambda             = 0
> sc-alpha                 = 0
> sc-power                 = 1
> sc-sigma                 = 0.3
>
> ; Non-equilibrium MD stuff
> acc-grps                 =
> accelerate               =
> freezegrps               =
> freezedim                =
> cos-acceleration         = 0
> deform                   =
>
> ; Electric fields
> ; Format is number of terms (int) and for all terms an amplitude  
> (real)
> ; and a phase angle (real)
> E-x                      =
> E-xt                     =
> E-y                      =
> E-yt                     =
> E-z                      =
> E-zt                     =
>
> ; User defined thingies
> user1-grps               =
> user2-grps               =
> userint1                 = 0
> userint2                 = 0
> userint3                 = 0
> userint4                 = 0
> userreal1                = 0
> userreal2                = 0
> userreal3                = 0
> userreal4                = 0
>
> ============================== pr.log =========================
>
> Log file opened on Wed Apr 19 16:53:02 2006
> Host: linux  pid: 8362  nodeid: 0  nnodes:  1
> The Gromacs distribution was built Tue Oct 11 13:51:00 CEST 2005 by
> root at oxygen (Linux 2.6.9-11.ELsmp i686)
>
>
>                          :-)  G  R  O  M  A  C  S  (-:
>
>                 Gravel Rubs Often Many Awfully Cauterized Sores
>
>                              :-)  VERSION 3.3  (-:
>
>
>       Written by David van der Spoel, Erik Lindahl, Berk Hess, and  
> others.
>        Copyright (c) 1991-2000, University of Groningen, The  
> Netherlands.
>              Copyright (c) 2001-2004, The GROMACS development team,
>             check out http://www.gromacs.org for more information.
>
>          This program is free software; you can redistribute it and/or
>           modify it under the terms of the GNU General Public License
>          as published by the Free Software Foundation; either  
> version 2
>              of the License, or (at your option) any later version.
>
>                                 :-)  mdrun  (-:
>
>
> ++++ PLEASE READ AND CITE THE FOLLOWING REFERENCE ++++
> E. Lindahl and B. Hess and D. van der Spoel
> GROMACS 3.0: A package for molecular simulation and trajectory  
> analysis
> J. Mol. Mod. 7 (2001) pp. 306-317
> -------- -------- --- Thank You --- -------- --------
>
>
> ++++ PLEASE READ AND CITE THE FOLLOWING REFERENCE ++++
> H. J. C. Berendsen, D. van der Spoel and R. van Drunen
> GROMACS: A message-passing parallel molecular dynamics implementation
> Comp. Phys. Comm. 91 (1995) pp. 43-56
> -------- -------- --- Thank You --- -------- --------
>
> Input Parameters:
>    integrator           = md
>    nsteps               = 10000
>    init_step            = 0
>    ns_type              = Grid
>    nstlist              = 10
>    ndelta               = 2
>    bDomDecomp           = FALSE
>    decomp_dir           = 0
>    nstcomm              = 1
>    comm_mode            = Linear
>    nstcheckpoint        = 1000
>    nstlog               = 10
>    nstxout              = 250
>    nstvout              = 1000
>    nstfout              = 0
>    nstenergy            = 10
>    nstxtcout            = 0
>    init_t               = 0
>    delta_t              = 0.002
>    xtcprec              = 1000
>    nkx                  = 50
>    nky                  = 48
>    nkz                  = 42
>    pme_order            = 6
>    ewald_rtol           = 1e-05
>    ewald_geometry       = 0
>    epsilon_surface      = 0
>    optimize_fft         = TRUE
>    ePBC                 = xyz
>    bUncStart            = FALSE
>    bShakeSOR            = FALSE
>    etc                  = Berendsen
>    epc                  = Berendsen
>    epctype              = Isotropic
>    tau_p                = 0.5
>    ref_p (3x3):
>       ref_p[    0]={ 1.00000e+00,  0.00000e+00,  0.00000e+00}
>       ref_p[    1]={ 0.00000e+00,  1.00000e+00,  0.00000e+00}
>       ref_p[    2]={ 0.00000e+00,  0.00000e+00,  1.00000e+00}
>    compress (3x3):
>       compress[    0]={ 4.50000e-05,  0.00000e+00,  0.00000e+00}
>       compress[    1]={ 0.00000e+00,  4.50000e-05,  0.00000e+00}
>       compress[    2]={ 0.00000e+00,  0.00000e+00,  4.50000e-05}
>    andersen_seed        = 815131
>    rlist                = 0.9
>    coulombtype          = PME
>    rcoulomb_switch      = 0
>    rcoulomb             = 0.9
>    vdwtype              = Cut-off
>    rvdw_switch          = 0
>    rvdw                 = 0.9
>    epsilon_r            = 1
>    epsilon_rf           = 1
>    tabext               = 1
>    gb_algorithm         = Still
>    nstgbradii           = 1
>    rgbradii             = 2
>    gb_saltconc          = 0
>    implicit_solvent     = No
>    DispCorr             = No
>    fudgeQQ              = 1
>    free_energy          = no
>    init_lambda          = 0
>    sc_alpha             = 0
>    sc_power             = 1
>    sc_sigma             = 0.3
>    delta_lambda         = 0
>    disre_weighting      = Conservative
>    disre_mixed          = FALSE
>    dr_fc                = 1000
>    dr_tau               = 0
>    nstdisreout          = 100
>    orires_fc            = 0
>    orires_tau           = 0
>    nstorireout          = 100
>    dihre-fc             = 1000
>    dihre-tau            = 0
>    nstdihreout          = 100
>    em_stepsize          = 0.01
>    em_tol               = 10
>    niter                = 20
>    fc_stepsize          = 0
>    nstcgsteep           = 1000
>    nbfgscorr            = 10
>    ConstAlg             = Lincs
>    shake_tol            = 1e-04
>    lincs_order          = 4
>    lincs_warnangle      = 30
>    lincs_iter           = 1
>    bd_fric              = 0
>    ld_seed              = 1993
>    cos_accel            = 0
>    deform (3x3):
>       deform[    0]={ 0.00000e+00,  0.00000e+00,  0.00000e+00}
>       deform[    1]={ 0.00000e+00,  0.00000e+00,  0.00000e+00}
>       deform[    2]={ 0.00000e+00,  0.00000e+00,  0.00000e+00}
>    userint1             = 0
>    userint2             = 0
>    userint3             = 0
>    userint4             = 0
>    userreal1            = 0
>    userreal2            = 0
>    userreal3            = 0
>    userreal4            = 0
> grpopts:
>    nrdf:	     4166.57     24921.4     66.9931     26.9972
>    ref_t:	         300         300         300         300
>    tau_t:	         0.1         0.1         0.1         0.1
> anneal:		          No          No          No          No
> ann_npoints:	           0           0           0           0
>    acc:	           0           0           0
>    nfreeze:           N           N           N
>    energygrp_flags[  0]: 0
>    efield-x:
>       n = 0
>    efield-xt:
>       n = 0
>    efield-y:
>       n = 0
>    efield-yt:
>       n = 0
>    efield-z:
>       n = 0
>    efield-zt:
>       n = 0
>    bQMMM                = FALSE
>    QMconstraints        = 0
>    QMMMscheme           = 0
>    scalefactor          = 1
> qm_opts:
>    ngQM                 = 0
> CPU=  0, lastcg= 5430, targetcg= 2715, myshift=    0
> nsb->shift =   1, nsb->bshift=  0
> Neighbor Search Blocks
> nsb->nodeid:         0
> nsb->nnodes:      1
> nsb->cgtotal:  5431
> nsb->natoms:  14604
> nsb->shift:       1
> nsb->bshift:      0
> Nodeid   index  homenr  cgload  workload
>      0       0   14604    5431      5431
>
> Max number of graph edges per atom is 4
> Table routines are used for coulomb: TRUE
> Table routines are used for vdw:     FALSE
> Using a Gaussian width (1/beta) of 0.288146 nm for Ewald
> Cut-off's:   NS: 0.9   Coulomb: 0.9   LJ: 0.9
> System total charge: 0.000
> Generated table with 949 data points for Ewald.
> Tabscale = 500 points/nm
> Generated table with 949 data points for LJ6.
> Tabscale = 500 points/nm
> Generated table with 949 data points for LJ12.
> Tabscale = 500 points/nm
> Generated table with 500 data points for 1-4 COUL.
> Tabscale = 500 points/nm
> Generated table with 500 data points for 1-4 LJ6.
> Tabscale = 500 points/nm
> Generated table with 500 data points for 1-4 LJ12.
> Tabscale = 500 points/nm
>
> Enabling SPC water optimization for 4154 molecules.
>
> Will do PME sum in reciprocal space.
>
> ++++ PLEASE READ AND CITE THE FOLLOWING REFERENCE ++++
> U. Essman, L. Perela, M. L. Berkowitz, T. Darden, H. Lee and L. G.  
> Pedersen
> A smooth particle mesh Ewald method
> J. Chem. Phys. 103 (1995) pp. 8577-8592
> -------- -------- --- Thank You --- -------- --------
>
> Center of mass motion removal mode is Linear
> We have the following groups for center of mass motion removal:
>   0:  rest, initial mass: 98823
> There are: 14604 Atoms
> Removing pbc first time
> Done rmpbc
>
> Constraining the starting coordinates (step -2)
>
> ++++ PLEASE READ AND CITE THE FOLLOWING REFERENCE ++++
> H. J. C. Berendsen, J. P. M. Postma, A. DiNola and J. R. Haak
> Molecular dynamics with coupling to an external bath
> J. Chem. Phys. 81 (1984) pp. 3684-3690
> -------- -------- --- Thank You --- -------- --------
>
>
> ++++ PLEASE READ AND CITE THE FOLLOWING REFERENCE ++++
> S. Miyamoto and P. A. Kollman
> SETTLE: An Analytical Version of the SHAKE and RATTLE Algorithms  
> for Rigid
> Water Models
> J. Comp. Chem. 13 (1992) pp. 952-962
> -------- -------- --- Thank You --- -------- --------
>
>
> ++++ PLEASE READ AND CITE THE FOLLOWING REFERENCE ++++
> B. Hess and H. Bekker and H. J. C. Berendsen and J. G. E. M. Fraaije
> LINCS: A Linear Constraint Solver for molecular simulations
> J. Comp. Chem. 18 (1997) pp. 1463-1472
> -------- -------- --- Thank You --- -------- --------
>
>
> Initializing LINear Constraint Solver
>   number of constraints is 2165
>   average number of constraints coupled to one constraint is 2.9
>
>    Rel. Constraint Deviation:  Max    between atoms     RMS
>        Before LINCS         0.045226    153    154   0.006870
>         After LINCS         0.000787   2103   2107   0.000129
>
> Going to use C-settle (4154 waters)
> wo = 0.888096, wh =0.0559521, wohh = 18.0154, rc = 0.08165, ra =  
> 0.00646074
> rb = 0.0512738, rc2 = 0.1633, rone = 1, dHH = 0.1633, dOH = 0.1
>
> Constraining the coordinates at t0-dt (step -1)
>    Rel. Constraint Deviation:  Max    between atoms     RMS
>        Before LINCS         0.090682   1135   1136   0.016874
>         After LINCS         0.000242   1878   1880   0.000041
>
> Started mdrun on node 0 Wed Apr 19 16:53:03 2006
> Initial temperature: 298.34 K
>            Step           Time         Lambda
>               0        0.00000        0.00000
>
> Grid: 13 x 12 x 10 cells
> Configuring nonbonded kernels...
> Testing AMD 3DNow support... present.
> Testing ia32 SSE support... present.
>
>
>    Rel. Constraint Deviation:  Max    between atoms     RMS
>        Before LINCS         0.102216   1168   1169   0.011717
>         After LINCS         0.000204   2103   2107   0.000042
>
>    Energies (kJ/mol)
>           Angle    Proper Dih.  Improper Dih.          LJ-14      
> Coulomb-14
>     1.30666e+03    9.31797e+02    3.00381e+02    1.67409e+03     
> 2.50861e+04
>         LJ (SR)   Coulomb (SR)   Coul. recip. Position Rest.       
> Potential
>     1.81245e+04   -2.01012e+05   -5.00385e+04    6.36238e-01    
> -2.03627e+05
>     Kinetic En.   Total Energy    Temperature Pressure (bar)
>     4.10711e+04   -1.62556e+05    3.38543e+02   -3.99460e+03
>
>
> Step 5, time 0.01 (ps)  LINCS WARNING
> relative constraint deviation after LINCS:
> max 0.001332 (between atoms 1948 and 1949) rms 0.000094
> bonds that rotated more than 30 degrees:
>  atom 1 atom 2  angle  previous, current, constraint length
>    1743   1745   33.0    0.1000   0.1000      0.1000
>
> Step 6, time 0.012 (ps)  LINCS WARNING
> relative constraint deviation after LINCS:
> max 0.001928 (between atoms 1948 and 1949) rms 0.000121
> bonds that rotated more than 30 degrees:
>  atom 1 atom 2  angle  previous, current, constraint length
>     125    126   30.5    0.1000   0.1000      0.1000
>    1743   1745   37.8    0.1000   0.0999      0.1000
>
> Step 7, time 0.014 (ps)  LINCS WARNING
> relative constraint deviation after LINCS:
> max 0.001687 (between atoms 1948 and 1949) rms 0.000134
> bonds that rotated more than 30 degrees:
>  atom 1 atom 2  angle  previous, current, constraint length
>    1190   1191   30.9    0.1000   0.1000      0.1000
>    1743   1745   34.5    0.0999   0.1000      0.1000
>
> Step 9, time 0.018 (ps)  LINCS WARNING
> relative constraint deviation after LINCS:
> max 0.002565 (between atoms 1454 and 1455) rms 0.000171
> bonds that rotated more than 30 degrees:
>  atom 1 atom 2  angle  previous, current, constraint length
>    1454   1455   30.7    0.1002   0.1003      0.1000
>            Step           Time         Lambda
>              10        0.02000        0.00000
>
>    Rel. Constraint Deviation:  Max    between atoms     RMS
>        Before LINCS         0.376663   1454   1455   0.032984
>         After LINCS         0.003488   1454   1455   0.000205
>
>
> Step 10, time 0.02 (ps)  LINCS WARNING
> relative constraint deviation after LINCS:
> max 0.003488 (between atoms 1454 and 1455) rms 0.000205
> bonds that rotated more than 30 degrees:
>  atom 1 atom 2  angle  previous, current, constraint length
>     893    894   30.1    0.1000   0.1000      0.1000
>    1454   1455   37.0    0.1003   0.1003      0.1000
>    1656   1657   31.1    0.1000   0.1000      0.1000
>    1838   1839   30.8    0.1001   0.1001      0.1000
>    2038   2041   30.6    0.1000   0.0999      0.1000
>    Energies (kJ/mol)
>           Angle    Proper Dih.  Improper Dih.          LJ-14      
> Coulomb-14
>     1.32695e+04    1.90899e+03    5.23652e+03    3.16260e+03     
> 2.51121e+04
>         LJ (SR)   Coulomb (SR)   Coul. recip. Position Rest.       
> Potential
>     4.45049e+04   -1.22149e+05   -3.77454e+04    2.75519e+02    
> -6.64239e+04
>     Kinetic En.   Total Energy    Temperature Pressure (bar)
>     4.87645e+05    4.21221e+05    4.01959e+03    1.49701e+04
>
>
> Step 11, time 0.022 (ps)  LINCS WARNING
> relative constraint deviation after LINCS:
> max 0.002203 (between atoms 1610 and 1611) rms 0.000207
> bonds that rotated more than 30 degrees:
>  atom 1 atom 2  angle  previous, current, constraint length
>    1454   1455   38.4    0.1004   0.1000      0.1000
>    1656   1657   33.4    0.1001   0.1000      0.1000
>    1838   1839   36.1    0.1001   0.1002      0.1000
>
> Step 12, time 0.024 (ps)  LINCS WARNING
> relative constraint deviation after LINCS:
> max 0.002162 (between atoms 1610 and 1611) rms 0.000208
> bonds that rotated more than 30 degrees:
>  atom 1 atom 2  angle  previous, current, constraint length
>    1454   1455   30.4    0.1001   0.0998      0.1000
>    1656   1657   31.4    0.1001   0.1000      0.1000
>    1838   1839   37.1    0.1003   0.1002      0.1000
>
> Step 13, time 0.026 (ps)  LINCS WARNING
> relative constraint deviation after LINCS:
> max 1.836471 (between atoms 1743 and 1745) rms 0.051291
> bonds that rotated more than 30 degrees:
>  atom 1 atom 2  angle  previous, current, constraint length
>    1743   1744   89.9    0.1002   0.2524      0.1000
>    1743   1745   90.1    0.1001   0.2836      0.1000
>    1838   1839   34.6    0.1003   0.0999      0.1000
> Constraint error in algorithm Lincs at step 13
>
> Step 14, time 0.028 (ps)  LINCS WARNING
> relative constraint deviation after LINCS:
> max 0.003903 (between atoms 1741 and 1743) rms 0.000237
> bonds that rotated more than 30 degrees:
>  atom 1 atom 2  angle  previous, current, constraint length
>    1743   1744   43.7    0.2528   0.1001      0.1000
>    1743   1745   44.1    0.2841   0.1000      0.1000
>
> Step 15, time 0.03 (ps)  LINCS WARNING
> relative constraint deviation after LINCS:
> max 0.982324 (between atoms 1743 and 1745) rms 0.025712
> bonds that rotated more than 30 degrees:
>  atom 1 atom 2  angle  previous, current, constraint length
>    1743   1744   90.0    0.1003   0.1683      0.1000
>    1743   1745   90.0    0.1002   0.1982      0.1000
> Constraint error in algorithm Lincs at step 15
>
> Step 16, time 0.032 (ps)  LINCS WARNING
> relative constraint deviation after LINCS:
> max 0.038037 (between atoms 1743 and 1745) rms 0.000980
> bonds that rotated more than 30 degrees:
>  atom 1 atom 2  angle  previous, current, constraint length
>     125    126   30.6    0.1002   0.0999      0.1000
>    1190   1191   37.5    0.1002   0.0999      0.1000
>    1743   1744   70.5    0.1686   0.0979      0.1000
>    1743   1745   52.7    0.1986   0.0962      0.1000
>    1808   1809   32.7    0.1002   0.1000      0.1000
>
> Step 17, time 0.034 (ps)  LINCS WARNING
> relative constraint deviation after LINCS:
> max 0.871170 (between atoms 1743 and 1745) rms 0.026058
> bonds that rotated more than 30 degrees:
>  atom 1 atom 2  angle  previous, current, constraint length
>    1190   1191   37.4    0.1001   0.0998      0.1000
>    1454   1455   36.9    0.1004   0.1004      0.1000
>    1743   1744   89.9    0.0981   0.1843      0.1000
>    1743   1745   90.0    0.0964   0.1871      0.1000
>    1808   1809   36.6    0.1002   0.1000      0.1000
> Constraint error in algorithm Lincs at step 17
>
> Step 18, time 0.036 (ps)  LINCS WARNING
> relative constraint deviation after LINCS:
> max 0.017829 (between atoms 1743 and 1744) rms 0.000566
> bonds that rotated more than 30 degrees:
>  atom 1 atom 2  angle  previous, current, constraint length
>    1454   1455   39.8    0.1007   0.1004      0.1000
>    1743   1744   48.2    0.1848   0.0982      0.1000
>    1743   1745   66.1    0.1876   0.0989      0.1000
>    1808   1809   34.7    0.1003   0.1001      0.1000
>
> Step 19, time 0.038 (ps)  LINCS WARNING
> relative constraint deviation after LINCS:
> max 0.397266 (between atoms 1743 and 1745) rms 0.008560
> bonds that rotated more than 30 degrees:
>  atom 1 atom 2  angle  previous, current, constraint length
>    1454   1455   38.3    0.1007   0.0998      0.1000
>    1743   1744   63.4    0.0985   0.0978      0.1000
>    1743   1745   90.0    0.0992   0.1397      0.1000
>    1808   1809   35.4    0.1003   0.0999      0.1000
>    1838   1839   34.6    0.1005   0.1005      0.1000
>            Step           Time         Lambda
>              20        0.04000        0.00000
>
>    Rel. Constraint Deviation:  Max    between atoms     RMS
>        Before LINCS         1.795489   1743   1745   0.057160
>         After LINCS         0.038636   1743   1745   0.001170
>
>
> Step 20, time 0.04 (ps)  LINCS WARNING
> relative constraint deviation after LINCS:
> max 0.038636 (between atoms 1743 and 1745) rms 0.001170
> bonds that rotated more than 30 degrees:
>  atom 1 atom 2  angle  previous, current, constraint length
>    1743   1744   69.5    0.0981   0.1032      0.1000
>    1743   1745   71.6    0.1401   0.1039      0.1000
>    1808   1809   37.3    0.1002   0.0998      0.1000
>    1838   1839   43.2    0.1008   0.1008      0.1000
>    Energies (kJ/mol)
>           Angle    Proper Dih.  Improper Dih.          LJ-14      
> Coulomb-14
>     3.43370e+04    3.98299e+03    9.19572e+03    6.03039e+03     
> 2.40893e+04
>         LJ (SR)   Coulomb (SR)   Coul. recip. Position Rest.       
> Potential
>     1.12548e+05   -1.00249e+05   -3.01319e+04    9.44273e+03     
> 6.92452e+04
>     Kinetic En.   Total Energy    Temperature Pressure (bar)
>     1.21696e+06    1.28621e+06    1.00313e+04    5.09390e+04
>
>
> Step 21, time 0.042 (ps)  LINCS WARNING
> relative constraint deviation after LINCS:
> max 0.312929 (between atoms 1743 and 1745) rms 0.006805
> bonds that rotated more than 30 degrees:
>  atom 1 atom 2  angle  previous, current, constraint length
>    1743   1744   90.0    0.1035   0.0957      0.1000
>    1743   1745   89.9    0.1042   0.1313      0.1000
>    1808   1809   30.9    0.1001   0.0999      0.1000
>    1838   1839   42.7    0.1011   0.0998      0.1000
>
> Step 22, time 0.044 (ps)  LINCS WARNING
> relative constraint deviation after LINCS:
> max 0.194893 (between atoms 1743 and 1745) rms 0.005786
> bonds that rotated more than 30 degrees:
>  atom 1 atom 2  angle  previous, current, constraint length
>    1656   1657   35.4    0.1004   0.0999      0.1000
>    1743   1744   89.9    0.0960   0.1184      0.1000
>    1743   1745   90.1    0.1317   0.1195      0.1000
> Large VCM(group rest):      0.00142,     -0.00085,      0.00433,  
> ekin-cm:
> 1.06142e+00
>
> Step 23, time 0.046 (ps)  LINCS WARNING
> relative constraint deviation after LINCS:
> max 0.114104 (between atoms 1743 and 1745) rms 0.002721
> bonds that rotated more than 30 degrees:
>  atom 1 atom 2  angle  previous, current, constraint length
>    1190   1191   30.7    0.1005   0.1002      0.1000
>    1656   1657   40.6    0.1002   0.0996      0.1000
>    1743   1744   36.0    0.1187   0.0967      0.1000
>    1743   1745   90.2    0.1199   0.1114      0.1000
>    2038   2039   43.5    0.1003   0.0989      0.1000
>
> t = 0.046 ps: Water molecule starting at atom 5140 can not be settled.
> Check for bad contacts and/or reduce the timestep.Wrote pdb files with
> previous and current coordinates
>
> Step 24, time 0.048 (ps)  LINCS WARNING
> relative constraint deviation after LINCS:
> max 0.235185 (between atoms 1743 and 1745) rms 0.005153
> bonds that rotated more than 30 degrees:
>  atom 1 atom 2  angle  previous, current, constraint length
>    1454   1455   35.4    0.1004   0.1004      0.1000
>    1656   1657   31.6    0.0999   0.0996      0.1000
>    1743   1744   41.3    0.0970   0.1011      0.1000
>    1743   1745   89.9    0.1118   0.1235      0.1000
>    2038   2041   44.4    0.1027   0.1027      0.1000
>
> Step 25, time 0.05 (ps)  LINCS WARNING
> relative constraint deviation after LINCS:
> max 0.015890 (between atoms 2038 and 2041) rms 0.000795
> bonds that rotated more than 30 degrees:
>  atom 1 atom 2  angle  previous, current, constraint length
>    1190   1191   36.1    0.1004   0.1000      0.1000
>    1454   1455   39.8    0.1007   0.1004      0.1000
>    1743   1744   52.8    0.1014   0.1005      0.1000
>    1743   1745   46.4    0.1239   0.0999      0.1000
>    1808   1809   39.1    0.1004   0.1002      0.1000
>    1948   1949   30.1    0.1003   0.0999      0.1000
>    2038   2041   38.1    0.1030   0.1016      0.1000
>
> t = 0.050 ps: Water molecule starting at atom 5974 can not be settled.
> Check for bad contacts and/or reduce the timestep.Wrote pdb files with
> previous and current coordinates
>
> Step 26, time 0.052 (ps)  LINCS WARNING
> relative constraint deviation after LINCS:
> max 0.143224 (between atoms 1743 and 1744) rms 0.003191
> bonds t
>
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