include/disre.h

   1
   2 /*
   3  *
   4  *                This source code is part of
   5  *
   6  *                 G   R   O   M   A   C   S
   7  *
   8  *          GROningen MAchine for Chemical Simulations
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  10  *                        VERSION 3.2.0
  11  * Written by David van der Spoel, Erik Lindahl, Berk Hess, and others.
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  13  * Copyright (c) 2001-2004, The GROMACS development team,
  14  * check out http://www.gromacs.org for more information.
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  36
  37 #ifndef _disre_h
  38 #define _disre_h
  39
  40 #ifdef HAVE_CONFIG_H
  41 #include <config.h>
  42 #endif
  43
  44 #include "sysstuff.h"
  45 #include "typedefs.h"
  46
  47 #ifdef __cplusplus
  48 extern "C" {
  49 #endif
  50
  51 extern void init_disres(FILE *fplog,const gmx_mtop_t *mtop,
  52                         t_inputrec *ir,const t_commrec *cr,bool bPartDecomp,
  53                         t_fcdata *fcd,t_state *state);
  54 /* Initiate *fcd data, must be called once, nbonds is the number
  55  * of iatoms in the ilist of the idef struct.
  56  * When time averaging is used, the history is initialized in state,
  57  * unless it was read before from a checkpoint file.
  58  */
  59
  60 extern void calc_disres_R_6(const gmx_multisim_t *ms,
  61                             int nfa,const t_iatom *fa,const t_iparams ip[],
  62                             const rvec *x,const t_pbc *pbc,
  63                             t_fcdata *fcd,history_t *hist);
  64 /* Calculates r and r^-3 (inst. and time averaged) for all pairs
  65  * and the ensemble averaged r^-6 (inst. and time averaged) for all restraints
  66  */
  67
  68 extern t_ifunc ta_disres;
  69 /* Calculate the distance restraint forces, return the potential */
  70
  71 extern void update_disres_history(t_fcdata *fcd,history_t *hist);
  72 /* Copy the new time averages that have been calculated in calc_disres_R_6 */
  73
  74 #ifdef __cplusplus
  75 }
  76 #endif
  77
  78 #endif  /* _disre_h */