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#ifndef _INTEGRATOR_H_ |
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#define _INTEGRATOR_H_ |
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#include <string> |
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#include <vector> |
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#include "Atom.hpp" |
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#include "Molecule.hpp" |
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#include "SRI.hpp" |
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#include "AbstractClasses.hpp" |
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#include "SimInfo.hpp" |
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#include "ForceFields.hpp" |
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#include "Thermo.hpp" |
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#include "ReadWrite.hpp" |
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#include "ZConsWriter.hpp" |
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using namespace std; |
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const double kB = 8.31451e-7;// boltzmann constant amu*Ang^2*fs^-2/K |
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const double eConvert = 4.184e-4; // converts kcal/mol -> amu*A^2/fs^2 |
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const double p_convert = 1.63882576e8; //converts amu*fs^-2*Ang^-1 -> atm |
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const int maxIteration = 300; |
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const double tol = 1.0e-6; |
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template<typename T = BaseIntegrator> class Integrator : public T { |
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public: |
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Integrator( SimInfo *theInfo, ForceFields* the_ff ); |
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virtual ~Integrator(); |
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void integrate( void ); |
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protected: |
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virtual void integrateStep( int calcPot, int calcStress ); |
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virtual void preMove( void ); |
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virtual void moveA( void ); |
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virtual void moveB( void ); |
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virtual void constrainA( void ); |
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virtual void constrainB( void ); |
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virtual int readyCheck( void ) { return 1; } |
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virtual void resetIntegrator( void ) { } |
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virtual void calcForce( int calcPot, int calcStress ); |
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virtual void thermalize(); |
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void checkConstraints( void ); |
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void rotate( int axes1, int axes2, double angle, double j[3], |
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double A[3][3] ); |
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ForceFields* myFF; |
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SimInfo *info; // all the info we'll ever need |
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int nAtoms; /* the number of atoms */ |
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int oldAtoms; |
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Atom **atoms; /* array of atom pointers */ |
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Molecule* molecules; |
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int nMols; |
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int isConstrained; // boolean to know whether the systems contains |
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// constraints. |
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int nConstrained; // counter for number of constraints |
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int *constrainedA; // the i of a constraint pair |
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int *constrainedB; // the j of a constraint pair |
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double *constrainedDsqr; // the square of the constraint distance |
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int* moving; // tells whether we are moving atom i |
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int* moved; // tells whether we have moved atom i |
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double* oldPos; // pre constrained positions |
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short isFirst; /*boolean for the first time integrate is called */ |
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double dt; |
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double dt2; |
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Thermo *tStats; |
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StatWriter* statOut; |
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DumpWriter* dumpOut; |
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}; |
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typedef Integrator<BaseIntegrator> RealIntegrator; |
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template<typename T> class NVE : public T { |
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NVE ( SimInfo *theInfo, ForceFields* the_ff ): |
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T( theInfo, the_ff ){} |
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virtual ~NVE(){} |
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}; |
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template<typename T> class NVT : public T { |
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public: |
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NVT ( SimInfo *theInfo, ForceFields* the_ff); |
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virtual ~NVT() {} |
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void setTauThermostat(double tt) {tauThermostat = tt; have_tau_thermostat=1;} |
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void setTargetTemp(double tt) {targetTemp = tt; have_target_temp = 1;} |
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protected: |
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virtual void moveA( void ); |
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virtual void moveB( void ); |
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virtual int readyCheck(); |
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virtual void resetIntegrator( void ); |
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// chi is a propagated degree of freedom. |
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double chi; |
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// targetTemp must be set. tauThermostat must also be set; |
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double targetTemp; |
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double tauThermostat; |
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short int have_tau_thermostat, have_target_temp; |
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}; |
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template<typename T> class NPTi : public T{ |
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public: |
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NPTi ( SimInfo *theInfo, ForceFields* the_ff); |
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virtual ~NPTi() {}; |
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virtual void integrateStep( int calcPot, int calcStress ){ |
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calcStress = 1; |
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T::integrateStep( calcPot, calcStress ); |
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} |
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void setTauThermostat(double tt) {tauThermostat = tt; have_tau_thermostat=1;} |
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void setTauBarostat(double tb) {tauBarostat = tb; have_tau_barostat=1;} |
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void setTargetTemp(double tt) {targetTemp = tt; have_target_temp = 1;} |
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void setTargetPressure(double tp) {targetPressure = tp; have_target_pressure = 1;} |
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protected: |
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virtual void moveA( void ); |
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virtual void moveB( void ); |
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virtual int readyCheck(); |
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virtual void resetIntegrator( void ); |
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// chi and eta are the propagated degrees of freedom |
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double chi; |
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double eta; |
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double NkBT; |
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// targetTemp, targetPressure, and tauBarostat must be set. |
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// One of qmass or tauThermostat must be set; |
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double targetTemp; |
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double targetPressure; |
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double tauThermostat; |
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double tauBarostat; |
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short int have_tau_thermostat, have_tau_barostat, have_target_temp; |
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short int have_target_pressure; |
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}; |
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template<typename T> class NPTim : public T{ |
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public: |
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NPTim ( SimInfo *theInfo, ForceFields* the_ff); |
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virtual ~NPTim() {}; |
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virtual void integrateStep( int calcPot, int calcStress ){ |
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calcStress = 1; |
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T::integrateStep( calcPot, calcStress ); |
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} |
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void setTauThermostat(double tt) {tauThermostat = tt; have_tau_thermostat=1;} |
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void setTauBarostat(double tb) {tauBarostat = tb; have_tau_barostat=1;} |
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void setTargetTemp(double tt) {targetTemp = tt; have_target_temp = 1;} |
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void setTargetPressure(double tp) {targetPressure = tp; have_target_pressure = 1;} |
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protected: |
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virtual void moveA( void ); |
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virtual void moveB( void ); |
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virtual int readyCheck(); |
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virtual void resetIntegrator( void ); |
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Molecule* myMolecules; |
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Atom** myAtoms; |
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// chi and eta are the propagated degrees of freedom |
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double chi; |
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double eta; |
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double NkBT; |
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// targetTemp, targetPressure, and tauBarostat must be set. |
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// One of qmass or tauThermostat must be set; |
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double targetTemp; |
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double targetPressure; |
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double tauThermostat; |
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double tauBarostat; |
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short int have_tau_thermostat, have_tau_barostat, have_target_temp; |
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short int have_target_pressure; |
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}; |
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template<typename T> class NPTf : public T{ |
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public: |
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NPTf ( SimInfo *theInfo, ForceFields* the_ff); |
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virtual ~NPTf() {}; |
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virtual void integrateStep( int calcPot, int calcStress ){ |
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calcStress = 1; |
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T::integrateStep( calcPot, calcStress ); |
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} |
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void setTauThermostat(double tt) {tauThermostat = tt; have_tau_thermostat=1;} |
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void setTauBarostat(double tb) {tauBarostat = tb; have_tau_barostat=1;} |
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void setTargetTemp(double tt) {targetTemp = tt; have_target_temp = 1;} |
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void setTargetPressure(double tp) {targetPressure = tp; have_target_pressure = 1;} |
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protected: |
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virtual void moveA( void ); |
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virtual void moveB( void ); |
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virtual void resetIntegrator( void ); |
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virtual int readyCheck(); |
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// chi and eta are the propagated degrees of freedom |
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double chi; |
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double eta[3][3]; |
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double NkBT; |
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// targetTemp, targetPressure, and tauBarostat must be set. |
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// One of qmass or tauThermostat must be set; |
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double targetTemp; |
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double targetPressure; |
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double tauThermostat; |
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double tauBarostat; |
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short int have_tau_thermostat, have_tau_barostat, have_target_temp; |
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short int have_target_pressure; |
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}; |
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template<typename T> class NPTfm : public T{ |
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public: |
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NPTfm ( SimInfo *theInfo, ForceFields* the_ff); |
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virtual ~NPTfm() {}; |
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virtual void integrateStep( int calcPot, int calcStress ){ |
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calcStress = 1; |
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T::integrateStep( calcPot, calcStress ); |
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} |
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void setTauThermostat(double tt) {tauThermostat = tt; have_tau_thermostat=1;} |
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void setTauBarostat(double tb) {tauBarostat = tb; have_tau_barostat=1;} |
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void setTargetTemp(double tt) {targetTemp = tt; have_target_temp = 1;} |
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void setTargetPressure(double tp) {targetPressure = tp; have_target_pressure = 1;} |
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protected: |
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virtual void moveA( void ); |
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virtual void moveB( void ); |
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virtual void resetIntegrator( void ); |
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virtual int readyCheck(); |
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Molecule* myMolecules; |
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Atom** myAtoms; |
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// chi and eta are the propagated degrees of freedom |
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double chi; |
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double eta[3][3]; |
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double NkBT; |
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// targetTemp, targetPressure, and tauBarostat must be set. |
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// One of qmass or tauThermostat must be set; |
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double targetTemp; |
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double targetPressure; |
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double tauThermostat; |
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double tauBarostat; |
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short int have_tau_thermostat, have_tau_barostat, have_target_temp; |
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short int have_target_pressure; |
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}; |
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template<typename T> class NPTpr : public T{ |
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public: |
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NPTpr ( SimInfo *theInfo, ForceFields* the_ff); |
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virtual ~NPTpr() {}; |
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virtual void integrateStep( int calcPot, int calcStress ){ |
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calcStress = 1; |
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T::integrateStep( calcPot, calcStress ); |
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} |
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void setTauThermostat(double tt) {tauThermostat = tt; have_tau_thermostat=1;} |
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void setTauBarostat(double tb) {tauBarostat = tb; have_tau_barostat=1;} |
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void setTargetTemp(double tt) {targetTemp = tt; have_target_temp = 1;} |
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void setTargetPressure(double tp) {targetPressure = tp; have_target_pressure = 1;} |
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protected: |
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virtual void moveA( void ); |
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virtual void moveB( void ); |
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virtual int readyCheck(); |
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virtual void resetIntegrator( void ); |
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// chi and eta are the propagated degrees of freedom |
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double chi; |
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double eta[3][3]; |
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double NkBT; |
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// targetTemp, targetPressure, and tauBarostat must be set. |
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// One of qmass or tauThermostat must be set; |
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double targetTemp; |
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double targetPressure; |
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double tauThermostat; |
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double tauBarostat; |
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short int have_tau_thermostat, have_tau_barostat, have_target_temp; |
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short int have_target_pressure; |
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}; |
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template<typename T> class ZConstraint : public T { |
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public: |
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class ForceSubtractionPolicy{ |
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public: |
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ForceSubtractionPolicy(ZConstraint<T>* integrator) {zconsIntegrator = integrator;} |
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virtual void update() = 0; |
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virtual double getZFOfFixedZMols(Molecule* mol, Atom* atom, double totalForce) = 0; |
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virtual double getZFOfMovingMols(Atom* atom, double totalForce) = 0; |
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virtual double getHFOfFixedZMols(Molecule* mol, Atom* atom, double totalForce) = 0; |
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virtual double getHFOfUnconsMols(Atom* atom, double totalForce) = 0; |
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protected: |
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ZConstraint<T>* zconsIntegrator;; |
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}; |
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class PolicyByNumber : public ForceSubtractionPolicy{ |
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public: |
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PolicyByNumber(ZConstraint<T>* integrator) :ForceSubtractionPolicy(integrator) {} |
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virtual void update(); |
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virtual double getZFOfFixedZMols(Molecule* mol, Atom* atom, double totalForce) ; |
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virtual double getZFOfMovingMols(Atom* atom, double totalForce) ; |
384 |
tim |
701 |
virtual double getHFOfFixedZMols(Molecule* mol, Atom* atom, double totalForce); |
385 |
|
|
virtual double getHFOfUnconsMols(Atom* atom, double totalForce); |
386 |
|
|
|
387 |
tim |
699 |
private: |
388 |
tim |
701 |
int totNumOfMovingAtoms; |
389 |
tim |
699 |
}; |
390 |
|
|
|
391 |
tim |
738 |
class PolicyByMass : public ForceSubtractionPolicy{ |
392 |
gezelter |
747 |
|
393 |
tim |
699 |
public: |
394 |
tim |
738 |
PolicyByMass(ZConstraint<T>* integrator) :ForceSubtractionPolicy(integrator) {} |
395 |
tim |
701 |
|
396 |
|
|
virtual void update(); |
397 |
tim |
699 |
virtual double getZFOfFixedZMols(Molecule* mol, Atom* atom, double totalForce) ; |
398 |
|
|
virtual double getZFOfMovingMols(Atom* atom, double totalForce) ; |
399 |
tim |
701 |
virtual double getHFOfFixedZMols(Molecule* mol, Atom* atom, double totalForce); |
400 |
|
|
virtual double getHFOfUnconsMols(Atom* atom, double totalForce); |
401 |
tim |
699 |
|
402 |
tim |
701 |
private: |
403 |
|
|
double totMassOfMovingAtoms; |
404 |
tim |
699 |
}; |
405 |
|
|
|
406 |
tim |
658 |
public: |
407 |
|
|
|
408 |
|
|
ZConstraint( SimInfo *theInfo, ForceFields* the_ff); |
409 |
|
|
~ZConstraint(); |
410 |
tim |
677 |
|
411 |
tim |
658 |
void setZConsTime(double time) {this->zconsTime = time;} |
412 |
|
|
void getZConsTime() {return zconsTime;} |
413 |
|
|
|
414 |
tim |
701 |
void setIndexOfAllZConsMols(vector<int> index) {indexOfAllZConsMols = index;} |
415 |
|
|
void getIndexOfAllZConsMols() {return indexOfAllZConsMols;} |
416 |
tim |
658 |
|
417 |
tim |
701 |
void setZConsOutput(const char * fileName) {zconsOutput = fileName;} |
418 |
tim |
658 |
string getZConsOutput() {return zconsOutput;} |
419 |
tim |
677 |
|
420 |
|
|
virtual void integrate(); |
421 |
|
|
|
422 |
tim |
658 |
|
423 |
|
|
#ifdef IS_MPI |
424 |
tim |
701 |
virtual void update(); //which is called to indicate the molecules' migration |
425 |
mmeineke |
377 |
#endif |
426 |
tim |
658 |
|
427 |
|
|
protected: |
428 |
|
|
|
429 |
tim |
701 |
enum ZConsState {zcsMoving, zcsFixed}; |
430 |
tim |
677 |
|
431 |
|
|
virtual void calcForce( int calcPot, int calcStress ); |
432 |
|
|
virtual void thermalize(void); |
433 |
|
|
|
434 |
|
|
void zeroOutVel(); |
435 |
|
|
void doZconstraintForce(); |
436 |
tim |
682 |
void doHarmonic(); |
437 |
tim |
677 |
bool checkZConsState(); |
438 |
|
|
|
439 |
|
|
bool haveFixedZMols(); |
440 |
|
|
bool haveMovingZMols(); |
441 |
|
|
|
442 |
|
|
double calcZSys(); |
443 |
|
|
|
444 |
|
|
int isZConstraintMol(Molecule* mol); |
445 |
|
|
|
446 |
|
|
|
447 |
tim |
701 |
double zconsTime; //sample time |
448 |
|
|
double zconsTol; //tolerance of z-contratint |
449 |
|
|
double zForceConst; //base force constant term |
450 |
|
|
//which is estimate by OOPSE |
451 |
tim |
658 |
|
452 |
tim |
701 |
vector<Molecule*> zconsMols; //z-constraint molecules array |
453 |
|
|
vector<double> massOfZConsMols; //mass of z-constraint molecule |
454 |
|
|
vector<double> kz; //force constant array |
455 |
|
|
vector<ZConsState> states; //state of z-constraint molecules |
456 |
|
|
vector<double> zPos; // |
457 |
tim |
658 |
|
458 |
tim |
677 |
|
459 |
tim |
701 |
vector<Molecule*> unconsMols; //unconstraint molecules array |
460 |
|
|
vector<double> massOfUnconsMols; //mass array of unconstraint molecules |
461 |
|
|
double totalMassOfUncons; //total mas of unconstraint molecules |
462 |
tim |
682 |
|
463 |
tim |
701 |
vector<ZConsParaItem>* parameters; // |
464 |
tim |
658 |
|
465 |
|
|
vector<int> indexOfAllZConsMols; //index of All Z-Constraint Molecuels |
466 |
tim |
677 |
|
467 |
|
|
int* indexOfZConsMols; //index of local Z-Constraint Molecules |
468 |
tim |
658 |
double* fz; |
469 |
tim |
699 |
double* curZPos; |
470 |
tim |
658 |
|
471 |
tim |
701 |
int totNumOfUnconsAtoms; //total number of uncontraint atoms |
472 |
tim |
677 |
|
473 |
|
|
int whichDirection; //constraint direction |
474 |
|
|
|
475 |
tim |
658 |
private: |
476 |
tim |
677 |
|
477 |
tim |
701 |
string zconsOutput; //filename of zconstraint output |
478 |
|
|
ZConsWriter* fzOut; //z-constraint writer |
479 |
tim |
677 |
|
480 |
tim |
701 |
double curZconsTime; |
481 |
tim |
699 |
|
482 |
tim |
696 |
double calcMovingMolsCOMVel(); |
483 |
|
|
double calcSysCOMVel(); |
484 |
|
|
double calcTotalForce(); |
485 |
tim |
701 |
|
486 |
gezelter |
747 |
ForceSubtractionPolicy* forcePolicy; //force subtraction policy |
487 |
tim |
738 |
friend class ForceSubtractionPolicy; |
488 |
tim |
677 |
|
489 |
tim |
658 |
}; |
490 |
|
|
|
491 |
|
|
#endif |