[gmx-users] coarse grain topology file

yuemin liu liucan1 at yahoo.com
Sat Mar 24 14:53:34 CET 2007


Just check very end of the top file. Make sure the
numbers of sol, ions and TOTAL are consistent.

--- Shanshan Qin <sansanqin00 at mails.tsinghua.edu.cn>
wrote:

> Hi,everyone,I put forward the question yesterday.
> When I run the simulation, the system always echo
> "Fatal error: number of coordinates in coordinate
> file (conf.gro, 12032) does not match topology
> (topol.top, 0)".
> Mr Abraham has pointed out maybe there is something
> wrong with the topol.top file.
> Now I put the topol.top here:
> 
> ;
> ;	Topology file for Coarse Grained DPPC + Water
> ;
> #include "CG.itp"
> 
> [ system ]
> Coase Grained DPPC in Water
> 
> [ molecules ]
> ;molecule name   nr.
> DPPC             512
> WATER           5888
> ;
> ;	CG.itp: force field file for 
> ;	Coarse Grained DPPC and Water
> ;
> 
> [ defaults ]
> 1       1
> 
> [ atomtypes ]
> ;   type      mass    charge    ptype       c6      
>      c12
> 
> ; polar type
> P          72.0       0.000      A         0.0      
>      0.0
> 
> ; non polar
> Na         72.0       0.000      A         0.0      
>      0.0
> 
> ; apolar
> C          72.0       0.000      A         0.0      
>      0.0
> 
> ; charged
> Q0         72.0       0.000      A         0.0      
>      0.0
> Qa         72.0       0.000      A         0.0      
>      0.0
> 
> [ nonbond_params ]
> ; i          j        fund       c6       c12
>   P          P         1      0.21558E-00   
> 0.23238E-02
>   Na         Na        1      0.18108E-00   
> 0.19520E-02
>   C          C         1      0.14660E-00   
> 0.15802E-02
>   Q0         Q0        1      0.14660E-00   
> 0.15802E-02
>   Qa         Qa        1      0.14660E-00   
> 0.15802E-02
>   P          Na        1      0.14660E-00   
> 0.15802E-02
>   P          C         1      0.77610E-01   
> 0.83658E-03
>   P          Q0        1      0.21558E-00   
> 0.23238E-02
>   P          Qa        1      0.21558E-00   
> 0.23238E-02
>   Na         C         1      0.11210E-00   
> 0.12084E-02
>   Na         Q0        1      0.14660E-00   
> 0.15802E-02
>   Na         Qa        1      0.14660E-00   
> 0.15802E-02
>   C          Q0        1      0.77610E-01   
> 0.83658E-03
>   C          Qa        1      0.77610E-01   
> 0.83658E-03
>   Q0         Qa        1      0.14660E-00   
> 0.15802E-02
> 
> 
> ;; Coarse Grained Water Molecule
> 
> [ moleculetype ]
> ; name  nrexcl
> WATER      2
> 
> [ atoms ]
> ;   nr    type   resnr   residu   atom    cgnr   
> charge   mass
>     1        P       1    WATER      W       1      
>  0    72.000
> 
> ;; Coarse Grained DPPC Molecule
> 
> [ moleculetype ]
> ; name  nrexxl
> DPPC         1
> 
> [ atoms ]
> ;   nr    type   resnr   residu   atom    cgnr   
> charge   mass
>     1       Q0       1     DPPC    NC3      1       
> 1.0   72.000
>     2       Qa       1     DPPC    PO4      2      
> -1.0   72.000
>     3       Na       1     DPPC    GL1      3       
> 0     72.000
>     4       Na       1     DPPC    GL2      4       
> 0     72.000
>     5       C        1     DPPC    C1A      5       
> 0     72.000
>     6       C        1     DPPC    C2A      6       
> 0     72.000
>     7       C        1     DPPC    C3A      7       
> 0     72.000
>     8       C        1     DPPC    C4A      8       
> 0     72.000
>     9       C        1     DPPC    C1B      9       
> 0     72.000
>    10       C        1     DPPC    C2B     10       
> 0     72.000
>    11       C        1     DPPC    C3B     11       
> 0     72.000
>    12       C        1     DPPC    C4B     12       
> 0     72.000
> 
> [ bonds ]
> ;  ai    aj funct        length       force.c
>     1     2     1         0.470        1250
>     2     3     1         0.470        1250
>     3     4     1         0.470        1250
>     3     5     1         0.470        1250
>     5     6     1         0.470        1250
>     6     7     1         0.470        1250
>     7     8     1         0.470        1250
>     4     9     1         0.470        1250
>     9    10     1         0.470        1250
>    10    11     1         0.470        1250
>    11    12     1         0.470        1250
> 
> [ angles ]
> ;   i     j     k       funct   angle      force.c
>     2     3     4         2     120.000     25.0
>     2     3     5         2     180.000     25.0
>     3     5     6         2     180.000     25.0
>     5     6     7         2     180.000     25.0
>     6     7     8         2     180.000     25.0
>     4     9    10         2     180.000     25.0
>     9    10    11         2     180.000     25.0
>    10    11    12         2     180.000     25.0
> Since the conf.gro file is rather large,so I will
> not paste it here, and the conf.gro seems to be
> right.What bothers me most is why my computer can't
> recognizeatom coordinates in the topol.top.Can
> anyone helpme out?By the way my linux is Fedora
> Core5,and the Gromacsedition is 3.3.1.>
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