You don't need virtual sites. That's for something else.

David


On 7/23/07, Wang Qin <[EMAIL PROTECTED]> wrote:
Hi everyone,
          I am just thinking about if in FEP calculation, I have given the
position information for dummy atoms in the directory of [atoms], do I need
to give the directory [virtual_sites] as well? Since I met a problem when I
was giving the [virtual_sites] directory and the problem went away when I
deleted it, I want to make sure if what I did is right.
         Here is the informaiton from my topology file:
  [atoms  ]
 ;nr     type            resnr   residue atom    cgnr    charge  mass
type_B  charge_B        mass_B
     21   opls_172      1 LG6      H21      21    0.4650       1.00800
    opls_999        0.0000  1.00800
     22   opls_172      1 LG6      H22      22    0.4650       1.00800
    opls_999        0.0000  1.00800
 ;opls_999 is defined by myself with an atomtype "V" and 0 charge 0 mass
 then is this directory necessary?
 [virtual_sites3]
 ;Site from from from funct theta d
 21      10      2       1       3       108      0.109
 22      11      4       3       3       108     0.109

          I am quite confused. Please help.

 Regards,
 Qin


_______________________________________________
gmx-users mailing list    [email protected]
http://www.gromacs.org/mailman/listinfo/gmx-users
Please search the archive at http://www.gromacs.org/search before posting!
Please don't post (un)subscribe requests to the list. Use the
www interface or send it to [EMAIL PROTECTED]
Can't post? Read
http://www.gromacs.org/mailing_lists/users.php

_______________________________________________
gmx-users mailing list    [email protected]
http://www.gromacs.org/mailman/listinfo/gmx-users
Please search the archive at http://www.gromacs.org/search before posting!
Please don't post (un)subscribe requests to the list. Use the www interface or send it to [EMAIL PROTECTED]
Can't post? Read http://www.gromacs.org/mailing_lists/users.php

Reply via email to