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#include "SimInfo.hpp" |
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#include "Thermo.hpp" |
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#include "ReadWrite.hpp" |
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#include "ExtendedSystem.hpp" |
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#include "simError.h" |
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extern "C"{ |
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void v_constrain_a_( double &dt, int &n_atoms, double* mass, |
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double* Fx, double* Fy, double* Fz, |
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int &n_constrained, double *constr_sqr, |
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int* constr_i, int* constr_j, |
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double &box_x, double &box_y, double &box_z ); |
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double &box_x, double &box_y, double &box_z, |
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int &isError ); |
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void v_constrain_b_( double &dt, int &n_atoms, double* mass, |
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double* Rx, double* Ry, double* Rz, |
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double &Kinetic, |
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int &n_constrained, double *constr_sqr, |
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int* constr_i, int* constr_j, |
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double &box_x, double &box_y, double &box_z ); |
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double &box_x, double &box_y, double &box_z, |
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int &isError); |
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} |
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Verlet::Verlet( SimInfo &info, ForceFields* the_ff ){ |
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Verlet::Verlet( SimInfo &info, ForceFields* the_ff, ExtendedSystem* the_es ){ |
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// get what information we need from the SimInfo object |
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entry_plug = &info; |
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myFF = the_ff; |
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myES = the_es; |
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c_natoms = info.n_atoms; |
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c_atoms = info.atoms; |
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SRI** theArray; |
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for(int i = 0; i < nMols; i++){ |
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theArray = molecules[i].getMyBonds(); |
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for(int j=0; j<molecules[i].getNbonds(); j++){ |
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theArray = (SRI**) molecules[i].getMyBonds(); |
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for(int j=0; j<molecules[i].getNBonds(); j++){ |
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constrained = theArray[j]->is_constrained(); |
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} |
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} |
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theArray = molecules[i].getMyBends(); |
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for(int j=0; j<molecules[i].getNbends(); j++){ |
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theArray = (SRI**) molecules[i].getMyBends(); |
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for(int j=0; j<molecules[i].getNBends(); j++){ |
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constrained = theArray[j]->is_constrained(); |
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} |
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} |
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theArray = molecules[i].getMyTorsions(); |
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for(int j=0; j<molecules[i].getNtorsions(); j++){ |
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theArray = (SRI**) molecules[i].getMyTorsions(); |
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for(int j=0; j<molecules[i].getNTorsions(); j++){ |
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constrained = theArray[j]->is_constrained(); |
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void Verlet::integrate( void ){ |
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int i, j; /* loop counters */ |
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int calcPot; |
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int calcPot, calcStress; |
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double kE; |
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int time; |
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double press[9]; |
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double dt = entry_plug->dt; |
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double runTime = entry_plug->run_time; |
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double sampleTime = entry_plug->sampleTime; |
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int status_n = (int)( statusTime / dt ); |
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int vel_n = (int)( thermalTime / dt ); |
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int isError; |
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Thermo *tStats = new Thermo( entry_plug ); |
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StatWriter* e_out = new StatWriter( entry_plug ); |
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DumpWriter* dump_out = new DumpWriter( entry_plug ); |
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// the first time integrate is called, the forces need to be initialized |
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myFF->doForces(1,0); |
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myFF->doForces(1,1); |
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if( entry_plug->setTemp ){ |
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tStats->velocitize(); |
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calcPot = 0; |
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if (!strcasecmp( entry_plug->ensemble, "NPT")) { |
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calcStress = 1; |
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} else { |
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calcStress = 0; |
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} |
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if( c_is_constrained ){ |
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for(i = 0; i < n_loops; i++){ |
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// fill R, V, and F arrays and RATTLE in fortran |
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for( j=0; j<c_natoms; j++ ){ |
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Rx[j] = c_atoms[j]->getX(); |
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Ry[j] = c_atoms[j]->getY(); |
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Rz[j] = c_atoms[j]->getZ(); |
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} |
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isError = 0; |
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v_constrain_a_( dt, c_natoms, c_mass, Rx, Ry, Rz, Vx, Vy, Vz, |
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Fx, Fy, Fz, |
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c_n_constrained, c_constrained_dsqr, |
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c_constrained_i, c_constrained_j, |
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c_box_x, c_box_y, c_box_z ); |
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c_box_x, c_box_y, c_box_z, |
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isError); |
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if( isError ){ |
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sprintf( painCave.errMsg, |
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"Constraint Failure in Fortran move A\n" ); |
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painCave.isFatal = 1; |
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simError(); |
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} |
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#ifdef IS_MPI |
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sprintf( checkPointMsg, |
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"succesful return from move a.\n" ); |
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MPIcheckPoint(); |
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#endif //is_mpi |
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for( j=0; j<c_natoms; j++ ){ |
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c_atoms[j]->setX(Rx[j]); |
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c_atoms[j]->set_vz(Vz[j]); |
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} |
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if (!strcasecmp( entry_plug->ensemble, "NVT")) |
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myES->NoseHooverNVT( dt / 2.0 , tStats->getKinetic() ); |
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// calculate the forces |
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myFF->doForces(calcPot,0); |
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myFF->doForces(calcPot,calcStress); |
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// finish the constrain move ( same as above. ) |
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Fz[j] = c_atoms[j]->getFz(); |
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} |
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isError = 0; |
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v_constrain_b_( dt, c_natoms, c_mass, Rx, Ry, Rz, Vx, Vy, Vz, |
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Fx, Fy, Fz, |
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kE, c_n_constrained, c_constrained_dsqr, |
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c_constrained_i, c_constrained_j, |
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c_box_x, c_box_y, c_box_z ); |
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c_box_x, c_box_y, c_box_z, isError ); |
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if( isError ){ |
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sprintf( painCave.errMsg, |
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"Constraint Failure in Fortran move B\n" ); |
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painCave.isFatal = 1; |
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simError(); |
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} |
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#ifdef IS_MPI |
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sprintf( checkPointMsg, |
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"succesful return from move B.\n" ); |
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MPIcheckPoint(); |
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#endif //is_mpi |
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for( j=0; j<c_natoms; j++ ){ |
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c_atoms[j]->setX(Rx[j]); |
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c_atoms[j]->set_vz(Vz[j]); |
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} |
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if (!strcasecmp( entry_plug->ensemble, "NVT")) |
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myES->NoseHooverNVT( dt / 2.0, tStats->getKinetic() ); |
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if (!strcasecmp( entry_plug->ensemble, "NPT") ) { |
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tStats->getPressureTensor(press); |
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myES->NoseHooverAndersonNPT( dt, |
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tStats->getKinetic(), |
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press); |
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} |
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time = i + 1; |
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if( entry_plug->setTemp ){ |
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if( !(time % vel_n) ) tStats->velocitize(); |
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} |
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if( !(time % sample_n) ) dump_out->writeDump( time * dt ); |
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if( !((time+1) % status_n) ) calcPot = 1; |
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if( !(time % status_n) ){ e_out->writeStat( time * dt ); calcPot = 0; } |
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if( !((time+1) % status_n) ) { |
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calcPot = 1; |
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calcStress = 1; |
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} |
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if( !(time % status_n) ){ |
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e_out->writeStat( time * dt ); |
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calcPot = 0; |
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if (!strcasecmp(entry_plug->ensemble, "NPT")) calcStress = 1; |
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else calcStress = 0; |
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} |
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} |
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} |
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else{ |
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for(i = 0; i < n_loops; i++){ |
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move_a( dt ); |
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if (!strcasecmp( entry_plug->ensemble, "NVT")) |
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myES->NoseHooverNVT( dt / 2.0, tStats->getKinetic() ); |
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// calculate the forces |
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myFF->doForces(calcPot,0); |
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myFF->doForces(calcPot,calcStress); |
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// complete the verlet move |
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move_b( dt ); |
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if (!strcasecmp( entry_plug->ensemble, "NVT")) |
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myES->NoseHooverNVT( dt / 2.0 , tStats->getKinetic() ); |
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if (!strcasecmp( entry_plug->ensemble, "NPT") ) { |
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tStats->getPressureTensor(press); |
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myES->NoseHooverAndersonNPT( dt, |
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tStats->getKinetic(), |
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press); |
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} |
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time = i + 1; |
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if( entry_plug->setTemp ){ |
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if( !(time % vel_n) ) tStats->velocitize(); |
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} |
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if( !(time % sample_n) ) dump_out->writeDump( time * dt ); |
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if( !((time+1) % status_n) ) calcPot = 1; |
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if( !(time % status_n) ){ e_out->writeStat( time * dt ); calcPot = 0; } |
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if( !((time+1) % status_n) ) { |
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calcPot = 1; |
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calcStress = 1; |
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} |
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if( !(time % status_n) ){ |
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e_out->writeStat( time * dt ); |
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calcPot = 0; |
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if (!strcasecmp(entry_plug->ensemble, "NPT")) calcStress = 1; |
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else calcStress = 0; |
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} |
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} |
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} |
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