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#include "fortranWrappers.hpp" | 
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void ForceFields::calcRcut( void ){ | 
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#ifdef IS_MPI | 
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  double tempBig = bigSigma; | 
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  MPI_Allreduce( &tempBig, &bigSigma, 1, MPI_DOUBLE, MPI_MAX, | 
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                 MPI_COMM_WORLD); | 
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#endif  //is_mpi | 
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  //calc rCut and rList | 
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  entry_plug->rCut = 2.5 * bigSigma; | 
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  if(entry_plug->rCut > (entry_plug->box_x / 2.0))  | 
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    entry_plug->rCut = entry_plug->box_x / 2.0; | 
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  if(entry_plug->rCut > (entry_plug->box_y / 2.0))  | 
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    entry_plug->rCut = entry_plug->box_y / 2.0; | 
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  if(entry_plug->rCut > (entry_plug->box_z / 2.0))  | 
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    entry_plug->rCut = entry_plug->box_z / 2.0; | 
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  entry_plug->rList = entry_plug->rCut + 1.0; | 
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} | 
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void ForceFields::doForces( int calcPot, int calcStress ){ | 
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  int i, isError; | 
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  double* trq; | 
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  double* tau; | 
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  double* A; | 
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  double* u_l; | 
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  double* u_l;; | 
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  DirectionalAtom* dAtom; | 
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  double ut[3]; | 
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  //u_l = new double[entry_plug->n_atoms]; | 
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  short int passedCalcPot = (short int)calcPot; | 
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  short int passedCalcStress = (short int)calcStress; | 
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  // forces are zeroed here, before any are acumulated. | 
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  // NOTE: do not rezero the forces in Fortran. | 
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  for(i=0; i<entry_plug->n_atoms; i++){ | 
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    entry_plug->atoms[i]->zeroForces(); | 
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//     if( entry_plug->atoms[i]->isDirectional() ){ | 
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//       dAtom = (DirectionalAtom *)entry_plug->atoms[i]; | 
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//       dAtom->getU(ut); | 
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//       if(dAtom->getIndex()== 1){ | 
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//      std::cerr << "atom 2's u_l = " << ut[0] << ", " << ut[1] | 
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//                << ", " << ut[2] << "\n"; | 
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//       } | 
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//     } | 
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  } | 
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  for(i=0; i<entry_plug->n_SRI; i++ ){ | 
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    entry_plug->sr_interactions[i]->calc_forces(); | 
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  for(i=0; i<entry_plug->n_mol; i++ ){ | 
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    entry_plug->molecules[i].calcForces(); | 
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  } | 
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  frc = Atom::getFrcArray(); | 
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  trq = Atom::getTrqArray(); | 
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  A   = Atom::getAmatArray(); | 
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  u_l = Atom::getUlArray(); | 
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  tau = entry_plug->tau; | 
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  isError = 0; | 
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  entry_plug->lrPot = 0.0; | 
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  fortranForceLoop( pos, | 
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                    A, | 
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                    &isError ); | 
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  //  delete[] u_l; | 
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  if( isError ){ | 
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    sprintf( painCave.errMsg, | 
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             "Error returned from the fortran force calculation.\n" ); |