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!! @author Charles F. Vardeman II |
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!! @author Matthew Meineke |
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!! @version $Id: doForces.F90,v 1.44 2005-09-15 22:05:17 gezelter Exp $, $Date: 2005-09-15 22:05:17 $, $Name: not supported by cvs2svn $, $Revision: 1.44 $ |
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!! @version $Id: doForces.F90,v 1.45 2005-09-16 20:36:55 chrisfen Exp $, $Date: 2005-09-16 20:36:55 $, $Name: not supported by cvs2svn $, $Revision: 1.45 $ |
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module doForces |
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logical, save :: FF_uses_Dipoles |
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logical, save :: FF_uses_GayBerne |
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logical, save :: FF_uses_EAM |
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logical, save :: FF_uses_RF |
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logical, save :: SIM_uses_DirectionalAtoms |
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logical, save :: SIM_uses_EAM |
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logical, save :: SIM_uses_RF |
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logical, save :: SIM_requires_postpair_calc |
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logical, save :: SIM_requires_prepair_calc |
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logical, save :: SIM_uses_PBC |
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integer, save :: corrMethod |
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integer, save :: electrostaticSummationMethod |
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public :: init_FF |
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public :: setDefaultCutoffs |
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SIM_requires_postpair_calc = SimRequiresPostpairCalc() |
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SIM_requires_prepair_calc = SimRequiresPrepairCalc() |
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SIM_uses_PBC = SimUsesPBC() |
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SIM_uses_RF = SimUsesRF() |
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haveSIMvariables = .true. |
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end subroutine doReadyCheck |
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subroutine init_FF(use_RF, correctionMethod, dampingAlpha, thisStat) |
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subroutine init_FF(thisESM, dampingAlpha, thisStat) |
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logical, intent(in) :: use_RF |
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integer, intent(in) :: correctionMethod |
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integer, intent(in) :: thisESM |
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real(kind=dp), intent(in) :: dampingAlpha |
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integer, intent(out) :: thisStat |
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integer :: my_status, nMatches |
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!! assume things are copacetic, unless they aren't |
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thisStat = 0 |
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!! Fortran's version of a cast: |
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FF_uses_RF = use_RF |
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electrostaticSummationMethod = thisESM |
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!! init_FF is called *after* all of the atom types have been |
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!! defined in atype_module using the new_atype subroutine. |
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!! |
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haveSaneForceField = .true. |
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!! check to make sure the FF_uses_RF setting makes sense |
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!! check to make sure the reaction field setting makes sense |
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if (FF_uses_Dipoles) then |
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if (FF_uses_RF) then |
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if (electrostaticSummationMethod == 3) then |
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dielect = getDielect() |
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call initialize_rf(dielect) |
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endif |
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else |
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if ((corrMethod == 3) .or. FF_uses_RF) then |
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if (electrostaticSummationMethod == 3) then |
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write(default_error,*) 'Using Reaction Field with no dipoles? Huh?' |
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thisStat = -1 |
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haveSaneForceField = .false. |
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if (FF_RequiresPostpairCalc() .and. SIM_requires_postpair_calc) then |
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if ((FF_uses_RF .and. SIM_uses_RF) .or. (corrMethod == 3)) then |
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if (electrostaticSummationMethod == 3) then |
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#ifdef IS_MPI |
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call scatter(rf_Row,rf,plan_atom_row_3d) |
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if ( iand(iHash, ELECTROSTATIC_PAIR).ne.0 ) then |
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call doElectrostaticPair(i, j, d, r, rijsq, sw, vpair, fpair, & |
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pot, eFrame, f, t, do_pot, corrMethod, rcuti) |
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pot, eFrame, f, t, do_pot) |
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if ((FF_uses_RF .and. SIM_uses_RF) .or. (corrMethod == 3)) then |
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if (electrostaticSummationMethod == 3) then |
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! CHECK ME (RF needs to know about all electrostatic types) |
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call accumulate_rf(i, j, r, eFrame, sw) |
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function FF_RequiresPostpairCalc() result(doesit) |
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logical :: doesit |
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doesit = FF_uses_RF |
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if (corrMethod == 3) doesit = .true. |
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if (electrostaticSummationMethod == 3) doesit = .true. |
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end function FF_RequiresPostpairCalc |
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#ifdef PROFILE |
