Commit fe8244c1 authored by Ulf R. Pedersen's avatar Ulf R. Pedersen
Browse files

Rename fix

parent 3381a433
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+17 −18
Original line number Diff line number Diff line
@@ -5,16 +5,17 @@
 
 The usage is as follows:
 
 fix [name] [groupID] rhoKUmbrella [nx] [ny] [nz] [kappa = spring constant] [rhoK0]
 fix [name] [groupID] rhoK [nx] [ny] [nz] [kappa = spring constant] [rhoK0]
 
 where k_i = (2 pi / L_i) * n_i
 
 Written by Ulf Pedersen and Patrick Varilly, 4 Feb 2010
 Tweaked for LAMMPS 15 Jan 2010 version by Ulf Pedersen, 19 Aug 2010
 Tweaked again March 4th 2012 by Ulf Pedersen.
 Tweaked again March 4th   2012   by Ulf R. Pedersen,
               September   2016   by Ulf R. Pedersen
 */

#include "fix_rhoKUmbrella.h"
#include "fix_rhok.h"
#include "error.h"
#include "update.h"
#include "respa.h"
@@ -32,7 +33,7 @@ using namespace FixConst;

// Constructor: all the parameters to this fix specified in
// the LAMMPS input get passed in
FixRhoKUmbrella::FixRhoKUmbrella( LAMMPS* inLMP, int inArgc, char** inArgv )
FixRhok::FixRhok( LAMMPS* inLMP, int inArgc, char** inArgv )
  : Fix( inLMP, inArgc, inArgv )
{
  // Check arguments
@@ -64,7 +65,7 @@ FixRhoKUmbrella::FixRhoKUmbrella( LAMMPS* inLMP, int inArgc, char** inArgv )
  mRhoK0 = atof( inArgv[7] );
}

FixRhoKUmbrella::~FixRhoKUmbrella()
FixRhok::~FixRhok()
{
}

@@ -73,7 +74,7 @@ FixRhoKUmbrella::~FixRhoKUmbrella()

// Tells LAMMPS where this fix should act
int
FixRhoKUmbrella::setmask()
FixRhok::setmask()
{
  int mask = 0;

@@ -88,7 +89,7 @@ FixRhoKUmbrella::setmask()
  return mask;
}

/*int FixRhoKUmbrella::setmask()
/*int FixRhok::setmask()
{
  int mask = 0;
  mask |= POST_FORCE;
@@ -100,7 +101,7 @@ FixRhoKUmbrella::setmask()

// Initializes the fix at the beginning of a run
void
FixRhoKUmbrella::init()
FixRhok::init()
{
  // RESPA boilerplate
  if( strcmp( update->integrate_style, "respa" ) == 0 )
@@ -122,7 +123,7 @@ FixRhoKUmbrella::init()

// Initial application of the fix to a system (when doing MD)
void
FixRhoKUmbrella::setup( int inVFlag )
FixRhok::setup( int inVFlag )
{
  if( strcmp( update->integrate_style, "verlet" ) == 0 )
	post_force( inVFlag );
@@ -136,14 +137,14 @@ FixRhoKUmbrella::setup( int inVFlag )

// Initial application of the fix to a system (when doing minimization)
void
FixRhoKUmbrella::min_setup( int inVFlag )
FixRhok::min_setup( int inVFlag )
{
  post_force( inVFlag );
}

// Modify the forces calculated in the main force loop of ordinary MD
void
FixRhoKUmbrella::post_force( int inVFlag )
FixRhok::post_force( int inVFlag )
{
  double **x = atom->x;
  double **f = atom->f;
@@ -168,11 +169,9 @@ FixRhoKUmbrella::post_force( int inVFlag )
	MPI_Allreduce( mRhoKLocal, mRhoKGlobal,
				  2, MPI_DOUBLE, MPI_SUM, world );
	
	// WARNING!!!!!  < \sum_{i,j} e^{-ik.(r_i - r_j)} > ~ N, so
	// Info:  < \sum_{i,j} e^{-ik.(r_i - r_j)} > ~ N, so
	// we define rho_k as (1 / sqrt(N)) \sum_i e^{-i k.r_i}, so that
	// <rho_k^2> is intensive.
	//
	// Don't forget this two years from now when you change the system size!!!
	mRhoKGlobal[0] /= mSqrtNThis;
	mRhoKGlobal[1] /= mSqrtNThis;
	
@@ -207,7 +206,7 @@ FixRhoKUmbrella::post_force( int inVFlag )

// Forces in RESPA loop
void
FixRhoKUmbrella::post_force_respa( int inVFlag, int inILevel, int inILoop )
FixRhok::post_force_respa( int inVFlag, int inILevel, int inILoop )
{
  if( inILevel == mNLevelsRESPA - 1 )
	post_force( inVFlag );
@@ -215,14 +214,14 @@ FixRhoKUmbrella::post_force_respa( int inVFlag, int inILevel, int inILoop )

// Forces in minimization loop
void
FixRhoKUmbrella::min_post_force( int inVFlag )
FixRhok::min_post_force( int inVFlag )
{
  post_force( inVFlag );
}

// Compute the change in the potential energy induced by this fix
double
FixRhoKUmbrella::compute_scalar()
FixRhok::compute_scalar()
{
	double rhoK = sqrt( mRhoKGlobal[0]*mRhoKGlobal[0]
					   + mRhoKGlobal[1]*mRhoKGlobal[1] );
@@ -232,7 +231,7 @@ FixRhoKUmbrella::compute_scalar()

// Compute the ith component of the vector
double
FixRhoKUmbrella::compute_vector( int inI )
FixRhok::compute_vector( int inI )
{
	if( inI == 0 )
		return mRhoKGlobal[0];   // Real part
+8 −8
Original line number Diff line number Diff line
/*
  fix_rhoK_umbrella.h
  fix_rhok.h

  A fix to do umbrella sampling on rho(k).

@@ -15,24 +15,24 @@

#ifdef FIX_CLASS

FixStyle(rhoKUmbrella,FixRhoKUmbrella)
FixStyle(rhok,FixRhok)

#else

#ifndef __FIX_RHOKUMBRELLA__
#define __FIX_RHOKUMBRELLA__
#ifndef __FIX_RHOK__
#define __FIX_RHOK__

#include "fix.h"

namespace LAMMPS_NS {

class FixRhoKUmbrella : public Fix
class FixRhok : public Fix
{
public:
  // Constructor: all the parameters to this fix specified in
  // the LAMMPS input get passed in
  FixRhoKUmbrella( LAMMPS* inLMP, int inArgc, char** inArgv );
  virtual ~FixRhoKUmbrella();
  FixRhok( LAMMPS* inLMP, int inArgc, char** inArgv );
  virtual ~FixRhok();
  
  // Methods that this fix implements
  // --------------------------------
@@ -76,6 +76,6 @@ private:

}  // namespace LAMMPS_NS

#endif // __FIX_RHOKUMBRELLA__
#endif // __FIX_RHOK__
#endif // FIX_CLASS