[gmx-users] what does it mean by 'started mdrun on node 0'

Yihua Zhou yihuaz0702 at gmail.com
Thu Nov 29 06:02:11 CET 2012


Dear Sir
I am very sorry to interrupt you again, but now I came across some problem
 haven't checked out what was going wrong. I used Matlab to established the
DNA and graphene nanosheet model including all the .gro files, .itp files
and .top files. When I ran it, the computer didn't send out error
information, but it just has no calculations,below  is the log file, could
you please take a look for me and provide some suggestion?  I would really
appreciate your kindly help, looking forward to your reply.


Input Parameters:
   integrator           = sd
   nsteps               = 20000000
   init_step            = 0
   ns_type              = Grid
   nstlist              = 10
   ndelta               = 2
   nstcomm              = 0
   comm_mode            = None
   nstlog               = 100000
   nstxout              = 100000
   nstvout              = 100000
   nstfout              = 100000
   nstcalcenergy        = 10
   nstenergy            = 100000
   nstxtcout            = 100000
   init_t               = 0
   delta_t              = 0.01
   xtcprec              = 1000
   nkx                  = 0
   nky                  = 0
   nkz                  = 0
   pme_order            = 4
   ewald_rtol           = 1e-05
   ewald_geometry       = 0
   epsilon_surface      = 0
   optimize_fft         = FALSE
   ePBC                 = xyz
   bPeriodicMols        = FALSE
   bContinuation        = FALSE
   bShakeSOR            = FALSE
   etc                  = No
   nsttcouple           = -1
   epc                  = No
   epctype              = Isotropic
   nstpcouple           = -1
   tau_p                = 1
   ref_p (3x3):
      ref_p[    0]={ 0.00000e+00,  0.00000e+00,  0.00000e+00}
      ref_p[    1]={ 0.00000e+00,  0.00000e+00,  0.00000e+00}
      ref_p[    2]={ 0.00000e+00,  0.00000e+00,  0.00000e+00}
   compress (3x3):
      compress[    0]={ 0.00000e+00,  0.00000e+00,  0.00000e+00}
      compress[    1]={ 0.00000e+00,  0.00000e+00,  0.00000e+00}
      compress[    2]={ 0.00000e+00,  0.00000e+00,  0.00000e+00}
   refcoord_scaling     = No
   posres_com (3):
      posres_com[0]= 0.00000e+00
      posres_com[1]= 0.00000e+00
      posres_com[2]= 0.00000e+00
   posres_comB (3):
      posres_comB[0]= 0.00000e+00
      posres_comB[1]= 0.00000e+00
      posres_comB[2]= 0.00000e+00
   andersen_seed        = 815131
   rlist                = 0.9
   rlistlong            = 0.9
   rtpi                 = 0.05
   coulombtype          = Cut-off
   rcoulomb_switch      = 0
   rcoulomb             = 0.9
   vdwtype              = Cut-off
   rvdw_switch          = 0
   rvdw                 = 0.9
   epsilon_r            = 1
   epsilon_rf           = 1
   tabext               = 1
   implicit_solvent     = No
   gb_algorithm         = Still
   gb_epsilon_solvent   = 80
   nstgbradii           = 1
   rgbradii             = 1
   gb_saltconc          = 0
   gb_obc_alpha         = 1
   gb_obc_beta          = 0.8
   gb_obc_gamma         = 4.85
   gb_dielectric_offset = 0.009
   sa_algorithm         = Ace-approximation
   sa_surface_tension   = 2.05016
   DispCorr             = No
   free_energy          = no
   init_lambda          = 0
   delta_lambda         = 0
   n_foreign_lambda     = 0
   sc_alpha             = 0
   sc_power             = 0
   sc_sigma             = 0.3
   sc_sigma_min         = 0.3
   nstdhdl              = 10
   separate_dhdl_file   = yes
   dhdl_derivatives     = yes
   dh_hist_size         = 0
   dh_hist_spacing      = 0.1
   nwall                = 0
   wall_type            = 9-3
   wall_atomtype[0]     = -1
   wall_atomtype[1]     = -1
   wall_density[0]      = 0
   wall_density[1]      = 0
   wall_ewald_zfac      = 3
   pull                 = no
   disre                = No
   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
   em_stepsize          = 0.01
   em_tol               = 10
   niter                = 20
   fc_stepsize          = 0
   nstcgsteep           = 1000
   nbfgscorr            = 10
   ConstAlg             = Lincs
   shake_tol            = 0.0001
   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:          33
   ref_t:         300
   tau_t:        0.05
anneal:          No
ann_npoints:           0
   acc:           0           0           0
   nfreeze:           Y           Y           Y           Y           Y
      Y           N           N           N
   energygrp_flags[  0]: 0 0
   energygrp_flags[  1]: 0 1
   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

Initializing Domain Decomposition on 3 nodes
Dynamic load balancing: auto
Will sort the charge groups at every domain (re)decomposition
Minimum cell size due to bonded interactions: 1.000 nm
Scaling the initial minimum size with 1/0.8 (option -dds) = 1.25
Optimizing the DD grid for 3 cells with a minimum initial size of 1.250 nm
The maximum allowed number of cells is: X 6 Y 3 Z 1
Domain decomposition grid 3 x 1 x 1, separate PME nodes 0
Domain decomposition nodeid 0, coordinates 0 0 0

Table routines are used for coulomb: FALSE
Table routines are used for vdw:     FALSE
Cut-off's:   NS: 0.9   Coulomb: 0.9   LJ: 0.9
System total charge: -16.000
Configuring nonbonded kernels...
Configuring standard C nonbonded kernels...
Testing ia32 SSE2 support... present.


Removing pbc first time

Linking all bonded interactions to atoms

The initial number of communication pulses is: X 1
The initial domain decomposition cell size is: X 2.67 nm

The maximum allowed distance for charge groups involved in interactions is:
                 non-bonded interactions           0.900 nm
            two-body bonded interactions  (-rdd)   1.000 nm
          multi-body bonded interactions  (-rdd)   1.000 nm

When dynamic load balancing gets turned on, these settings will change to:
The maximum number of communication pulses is: X 1
The minimum size for domain decomposition cells is 1.000 nm
The requested allowed shrink of DD cells (option -dds) is: 0.80
The allowed shrink of domain decomposition cells is: X 0.38
The maximum allowed distance for charge groups involved in interactions is:
                 non-bonded interactions           0.900 nm
            two-body bonded interactions  (-rdd)   1.000 nm
          multi-body bonded interactions  (-rdd)   1.000 nm


Making 1D domain decomposition grid 3 x 1 x 1, home cell index 0 0 0

There are: 301 Atoms
Charge group distribution at step 0: 115 98 88
Grid: 5 x 4 x 2 cells
Initial temperature: 306.651 K

Started mdrun on node 0 Wed Nov 28 23:02:33 2012

           Step           Time         Lambda
              0        0.00000        0.00000

   Energies (kJ/mol)
           Bond       G96Angle    Proper Dih.        LJ (SR)   Coulomb (SR)
    4.19801e+05    1.40206e+03    3.49599e+03    8.36580e+20    8.17307e+04
      Potential    Kinetic En.   Total Energy    Temperature Pressure (bar)
    8.36580e+20            inf            inf            inf            inf

Best regards
Rita Zhou



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