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!! do_Forces.F90 |
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!! module do_Forces |
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!! Calculates Long Range forces. |
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!! @author Charles F. Vardeman II |
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!! @author Matthew Meineke |
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!! @version $Id: do_Forces.F90,v 1.6 2003-03-10 14:53:36 gezelter Exp $, $Date: 2003-03-10 14:53:36 $, $Name: not supported by cvs2svn $, $Revision: 1.6 $ |
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!! @version $Id: do_Forces.F90,v 1.15 2003-03-12 22:27:59 gezelter Exp $, $Date: 2003-03-12 22:27:59 $, $Name: not supported by cvs2svn $, $Revision: 1.15 $ |
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module do_Forces |
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use simulation |
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use definitions |
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use forceGlobals |
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use atype_typedefs |
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use neighborLists |
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use atype_module |
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use neighborLists |
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use lj_FF |
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use sticky_FF |
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use dp_FF |
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use dipole_dipole |
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use gb_FF |
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#ifdef IS_MPI |
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implicit none |
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PRIVATE |
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|
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public :: do_force_loop |
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logical, save :: do_forces_initialized = .false. |
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logical, save :: FF_uses_LJ |
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logical, save :: FF_uses_sticky |
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logical, save :: FF_uses_dipoles |
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logical, save :: FF_uses_RF |
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logical, save :: FF_uses_GB |
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logical, save :: FF_uses_EAM |
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|
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contains |
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|
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!! FORCE routine Calculates Lennard Jones forces. |
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!-------------------------------------------------------------> |
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subroutine do_force_loop(q,A,mu,u_l,f,t,tau,potE,do_pot,FFerror) |
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!! Position array provided by C, dimensioned by getNlocal |
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real ( kind = dp ), dimension(3,getNlocal()) :: q |
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!! Rotation Matrix for each long range particle in simulation. |
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real( kind = dp), dimension(9,getNlocal()) :: A |
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public :: init_FF |
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public :: do_forces |
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|
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!! Magnitude dipole moment |
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real( kind = dp ), dimension(3,getNlocal()) :: mu |
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!! Unit vectors for dipoles (lab frame) |
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real( kind = dp ), dimension(3,getNlocal()) :: u_l |
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!! Force array provided by C, dimensioned by getNlocal |
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real ( kind = dp ), dimension(3,getNlocal()) :: f |
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!! Torsion array provided by C, dimensioned by getNlocal |
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real( kind = dp ), dimension(3,getNlocal()) :: t |
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contains |
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|
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!! Stress Tensor |
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real( kind = dp), dimension(9) :: tau |
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subroutine init_FF(thisStat) |
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|
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integer, intent(out) :: my_status |
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integer :: thisStat = 0 |
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real ( kind = dp ) :: potE |
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logical ( kind = 2) :: do_pot |
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integer :: FFerror |
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! be a smarter subroutine. |
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|
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type(atype), pointer :: Atype_i |
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type(atype), pointer :: Atype_j |
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call init_lj_FF(my_status) |
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if (my_status /= 0) then |
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thisStat = -1 |
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return |
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end if |
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|
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call check_sticky_FF(my_status) |
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if (my_status /= 0) then |
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thisStat = -1 |
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return |
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end if |
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|
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do_forces_initialized = .true. |
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|
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end subroutine init_FF |
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!! Does force loop over i,j pairs. Calls do_pair to calculates forces. |
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!-------------------------------------------------------------> |
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subroutine do_force_loop(q, A, u_l, f, t, tau, pot, do_pot_c, do_stress_c, & |
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error) |
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!! Position array provided by C, dimensioned by getNlocal |
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real ( kind = dp ), dimension(3,getNlocal()) :: q |
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!! Rotation Matrix for each long range particle in simulation. |
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real( kind = dp), dimension(9,getNlocal()) :: A |
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!! Unit vectors for dipoles (lab frame) |
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real( kind = dp ), dimension(3,getNlocal()) :: u_l |
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!! Force array provided by C, dimensioned by getNlocal |
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real ( kind = dp ), dimension(3,getNlocal()) :: f |
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!! Torsion array provided by C, dimensioned by getNlocal |
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real( kind = dp ), dimension(3,getNlocal()) :: t |
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!! Stress Tensor |
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real( kind = dp), dimension(9) :: tau |
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real ( kind = dp ) :: pot |
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logical ( kind = 2) :: do_pot_c, do_stress_c |
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logical :: do_pot |
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logical :: do_stress |
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#ifdef IS_MPI |
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real( kind = DP ) :: pot_local |
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|
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!! Local arrays needed for MPI |
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|
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#endif |
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real( kind = DP ) :: pe |
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logical :: update_nlist |
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|
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|
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integer :: i, j, jbeg, jend, jnab, idim, jdim, idim2, jdim2, dim, dim2 |
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integer :: nlist |
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integer :: j_start |
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|
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real( kind = DP ) :: r_ij, pot, ftmp, dudr, d2, drdx1, kt1, kt2, kt3, ktmp |
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|
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real( kind = DP ) :: rx_ij, ry_ij, rz_ij, rijsq |
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real( kind = DP ) :: rlistsq, rcutsq,rlist,rcut |
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|
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real( kind = DP ) :: dielectric = 0.0_dp |
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|
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! a rig that need to be fixed. |
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#ifdef IS_MPI |
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real( kind = dp ) :: pe_local |
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integer :: nlocal |
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real( kind = DP ) :: pot_local |
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integer :: nlocal |
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integer :: nrow |
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integer :: ncol |
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#endif |
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integer :: nrow |
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integer :: ncol |
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integer :: natoms |
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integer :: neighborListSize |
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integer :: listerror |
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!! should we calculate the stress tensor |
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logical :: do_stress = .false. |
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integer :: natoms |
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logical :: update_nlist |
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integer :: i, j, jbeg, jend, jnab |
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integer :: nlist |
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real( kind = DP ) :: rijsq, rlistsq, rcutsq, rlist, rcut |
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integer :: neighborListSize |
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integer :: listerror |
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!! initialize local variables |
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FFerror = 0 |
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|
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! Make sure we are properly initialized. |
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if (.not. isFFInit) then |
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write(default_error,*) "ERROR: lj_FF has not been properly initialized" |
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FFerror = -1 |
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return |
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endif |
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#ifdef IS_MPI |
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if (.not. isMPISimSet()) then |
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write(default_error,*) "ERROR: mpiSimulation has not been properly initialized" |
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FFerror = -1 |
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return |
108 |
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endif |
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nlocal = getNlocal() |
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nrow = getNrow(plan_row) |
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ncol = getNcol(plan_col) |
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#else |
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nlocal = getNlocal() |
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natoms = nlocal |
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#endif |
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!! initialize local variables |
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natoms = getNlocal() |
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call getRcut(rcut,rcut2=rcutsq) |
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call getRlist(rlist,rlistsq) |
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call getRcut(rcut,rcut2=rcutsq) |
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call getRlist(rlist,rlistsq) |
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|
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call check_initialization() |
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call zero_work_arrays() |
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!! Find ensemble |
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if (isEnsemble("NPT")) do_stress = .true. |
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!! set to wrap |
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if (isPBC()) wrap = .true. |
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do_pot = do_pot_c |
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do_stress = do_stress_c |
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!! See if we need to update neighbor lists |
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call check(q,update_nlist) |
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|
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!--------------WARNING........................... |
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! Zero variables, NOTE:::: Forces are zeroed in C |
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! Zeroing them here could delete previously computed |
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! Forces. |
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!------------------------------------------------ |
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call zero_module_variables() |
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! communicate MPI positions |
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! Gather all information needed by all force loops: |
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|
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#ifdef IS_MPI |
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call gather(q,qRow,plan_row3d) |
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call gather(q,qCol,plan_col3d) |
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call gather(mu,muRow,plan_row3d) |
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call gather(mu,muCol,plan_col3d) |
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|
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call gather(u_l,u_lRow,plan_row3d) |
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call gather(u_l,u_lCol,plan_col3d) |
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|
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call gather(A,ARow,plan_row_rotation) |
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call gather(A,ACol,plan_col_rotation) |
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call gather(q,q_Row,plan_row3d) |
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call gather(q,q_Col,plan_col3d) |
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|
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if (FF_UsesDirectionalAtoms() .and. SimUsesDirectionalAtoms()) then |
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call gather(u_l,u_l_Row,plan_row3d) |
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call gather(u_l,u_l_Col,plan_col3d) |
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|
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call gather(A,A_Row,plan_row_rotation) |
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call gather(A,A_Col,plan_col_rotation) |
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endif |
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#endif |
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if (FF_RequiresPrepairCalc() .and. SimRequiresPrepairCalc()) then |
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!! See if we need to update neighbor lists |
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call checkNeighborList(nlocal, q, rcut, rlist, update_nlist) |
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!! if_mpi_gather_stuff_for_prepair |
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!! do_prepair_loop_if_needed |
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!! if_mpi_scatter_stuff_from_prepair |
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!! if_mpi_gather_stuff_from_prepair_to_main_loop |
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else |
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!! See if we need to update neighbor lists |
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> |
call checkNeighborList(nlocal, q, rcut, rlist, update_nlist) |
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endif |
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|
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#ifdef IS_MPI |
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if (update_nlist) then |
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! save current configuration, contruct neighbor list, |
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! and calculate forces |
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!! save current configuration, construct neighbor list, |
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!! and calculate forces |
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call save_neighborList(q) |
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neighborListSize = getNeighborListSize() |
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nlist = 0 |
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nlist = 0 |
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nrow = getNrow(plan_row) |
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ncol = getNcol(plan_col) |
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nlocal = getNlocal() |
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|
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do i = 1, nrow |
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point(i) = nlist + 1 |
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Atype_i => identPtrListRow(i)%this |
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inner: do j = 1, ncol |
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Atype_j => identPtrListColumn(j)%this |
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call get_interatomic_vector(i,j,qRow(:,i),qCol(:,j),& |
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rxij,ryij,rzij,rijsq,r) |
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> |
if (check_exclude(i,j)) cycle inner: |
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! skip the loop if the atoms are identical |
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if (mpi_cycle_jLoop(i,j)) cycle inner: |
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|
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call get_interatomic_vector(q_Row(:,i), q_Col(:,j), d, rijsq) |
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|
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if (rijsq < rlistsq) then |
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nlist = nlist + 1 |
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if (nlist > neighborListSize) then |
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call expandList(listerror) |
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call expandNeighborList(nlocal, listerror) |
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if (listerror /= 0) then |
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FFerror = -1 |
177 |
> |
error = -1 |
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write(DEFAULT_ERROR,*) "ERROR: nlist > list size and max allocations exceeded." |
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return |
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end if |
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endif |
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list(nlist) = j |
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|
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|
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if (rijsq < rcutsq) then |
186 |
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call do_pair(Atype_i,Atype_j,i,j,r,rxij,ryij,rzij) |
186 |
> |
call do_pair(i, j, rijsq, d, do_pot, do_stress) |
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endif |
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endif |
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enddo inner |
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point(nrow + 1) = nlist + 1 |
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else !! (update) |
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else !! (of update_check) |
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|
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! use the list to find the neighbors |
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do i = 1, nrow |
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JEND = POINT(i+1) - 1 |
200 |
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! check thiat molecule i has neighbors |
201 |
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if (jbeg .le. jend) then |
202 |
< |
|
220 |
< |
Atype_i => identPtrListRow(i)%this |
202 |
> |
|
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do jnab = jbeg, jend |
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j = list(jnab) |
205 |
< |
Atype_j = identPtrListColumn(j)%this |
206 |
< |
call get_interatomic_vector(i,j,qRow(:,i),qCol(:,j),& |
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< |
rxij,ryij,rzij,rijsq,r) |
208 |
< |
|
227 |
< |
call do_pair(Atype_i,Atype_j,i,j,r,rxij,ryij,rzij) |
205 |
> |
|
206 |
> |
call get_interatomic_vector(q_Row(:,i), q_Col(:,j), d, rijsq) |
207 |
> |
call do_pair(i, j, rijsq, d, do_pot, do_stress) |
208 |
> |
|
209 |
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enddo |
210 |
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endif |
211 |
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enddo |
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endif |
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> |
|
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#else |
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if (update_nlist) then |
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neighborListSize = getNeighborListSize() |
223 |
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nlist = 0 |
224 |
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|
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– |
|
225 |
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do i = 1, natoms-1 |
226 |
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point(i) = nlist + 1 |
227 |
< |
Atype_i => identPtrList(i)%this |
248 |
< |
|
227 |
> |
|
228 |
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inner: do j = i+1, natoms |
229 |
< |
Atype_j => identPtrList(j)%this |
230 |
< |
call get_interatomic_vector(i,j,q(:,i),q(:,j),& |
231 |
< |
rxij,ryij,rzij,rijsq,r) |
229 |
> |
|
230 |
> |
if (check_exclude(i,j)) cycle inner: |
231 |
> |
|
232 |
> |
call get_interatomic_vector(q(:,i), q(:,j), d, rijsq) |
233 |
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|
234 |
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if (rijsq < rlistsq) then |
235 |
< |
|
235 |
> |
|
236 |
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nlist = nlist + 1 |
237 |
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|
238 |
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if (nlist > neighborListSize) then |
239 |
< |
call expandList(listerror) |
239 |
> |
call expandList(natoms, listerror) |
240 |
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if (listerror /= 0) then |
241 |
< |
FFerror = -1 |
241 |
> |
error = -1 |
242 |
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write(DEFAULT_ERROR,*) "ERROR: nlist > list size and max allocations exceeded." |
243 |
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return |
244 |
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end if |
245 |
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endif |
246 |
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|
247 |
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list(nlist) = j |
248 |
< |
|
269 |
< |
|
248 |
> |
|
249 |
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if (rijsq < rcutsq) then |
250 |
< |
call do_pair(Atype_i,Atype_j,i,j,r,rxij,ryij,rzij) |
250 |
> |
call do_pair(i, j, rijsq, d, do_pot, do_stress) |
251 |
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endif |
252 |
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endif |
253 |
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enddo inner |
264 |
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! check thiat molecule i has neighbors |
265 |
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if (jbeg .le. jend) then |
266 |
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|
288 |
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Atype_i => identPtrList(i)%this |
267 |
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do jnab = jbeg, jend |
268 |
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j = list(jnab) |
269 |
< |
Atype_j = identPtrList(j)%this |
270 |
< |
call get_interatomic_vector(i,j,q(:,i),q(:,j),& |
271 |
< |
rxij,ryij,rzij,rijsq,r) |
272 |
< |
call do_pair(Atype_i,Atype_j,i,j,r,rxij,ryij,rzij) |
269 |
> |
|
270 |
> |
call get_interatomic_vector(q(:,i), q(:,j), d, rijsq) |
271 |
> |
call do_pair(i, j, rijsq, d, do_pot, do_stress) |
272 |
> |
|
273 |
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enddo |
274 |
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endif |
275 |
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enddo |
276 |
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endif |
277 |
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|
277 |
> |
|
278 |
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#endif |
279 |
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|
280 |
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|
279 |
> |
|
280 |
> |
! phew, done with main loop. |
281 |
> |
|
282 |
|
#ifdef IS_MPI |
304 |
– |
!! distribute all reaction field stuff (or anything for post-pair): |
305 |
– |
call scatter(rflRow,rflTemp1,plan_row3d) |
306 |
– |
call scatter(rflCol,rflTemp2,plan_col3d) |
307 |
– |
do i = 1,nlocal |
308 |
– |
rflTemp(1:3,i) = rflTemp1(1:3,i) + rflTemp2(1:3,i) |
309 |
– |
end do |
310 |
– |
#endif |
311 |
– |
|
312 |
– |
! This is the post-pair loop: |
313 |
– |
#ifdef IS_MPI |
314 |
– |
|
315 |
– |
if (system_has_postpair_atoms) then |
316 |
– |
do i = 1, nlocal |
317 |
– |
Atype_i => identPtrListRow(i)%this |
318 |
– |
call do_postpair(i, Atype_i) |
319 |
– |
enddo |
320 |
– |
endif |
321 |
– |
|
322 |
– |
#else |
323 |
– |
|
324 |
– |
if (system_has_postpair_atoms) then |
325 |
– |
do i = 1, natoms |
326 |
– |
Atype_i => identPtr(i)%this |
327 |
– |
call do_postpair(i, Atype_i) |
328 |
– |
enddo |
329 |
– |
endif |
330 |
– |
|
331 |
– |
#endif |
332 |
– |
|
333 |
– |
|
334 |
– |
|
335 |
– |
|
336 |
– |
#ifdef IS_MPI |
283 |
|
!!distribute forces |
284 |
< |
|
285 |
< |
call scatter(fRow,fTemp1,plan_row3d) |
286 |
< |
call scatter(fCol,fTemp2,plan_col3d) |
341 |
< |
|
342 |
< |
|
284 |
> |
|
285 |
> |
call scatter(f_Row,f,plan_row3d) |
286 |
> |
call scatter(f_Col,f_temp,plan_col3d) |
287 |
|
do i = 1,nlocal |
288 |
< |
fTemp(1:3,i) = fTemp1(1:3,i) + fTemp2(1:3,i) |
288 |
> |
f(1:3,i) = f(1:3,i) + f_temp(1:3,i) |
289 |
|
end do |
346 |
– |
|
347 |
– |
if (do_torque) then |
348 |
– |
call scatter(tRow,tTemp1,plan_row3d) |
349 |
– |
call scatter(tCol,tTemp2,plan_col3d) |
290 |
|
|
291 |
+ |
if (FF_UsesDirectionalAtoms() .and. SimUsesDirectionalAtoms()) then |
292 |
+ |
call scatter(t_Row,t,plan_row3d) |
293 |
+ |
call scatter(t_Col,t_temp,plan_col3d) |
294 |
+ |
|
295 |
|
do i = 1,nlocal |
296 |
< |
tTemp(1:3,i) = tTemp1(1:3,i) + tTemp2(1:3,i) |
296 |
> |
t(1:3,i) = t(1:3,i) + t_temp(1:3,i) |
297 |
|
end do |
298 |
|
endif |
299 |
< |
|
299 |
> |
|
300 |
|
if (do_pot) then |
301 |
|
! scatter/gather pot_row into the members of my column |
302 |
< |
call scatter(eRow,eTemp,plan_row) |
302 |
> |
call scatter(pot_Row, pot_Temp, plan_row) |
303 |
|
|
304 |
|
! scatter/gather pot_local into all other procs |
305 |
|
! add resultant to get total pot |
306 |
|
do i = 1, nlocal |
307 |
< |
pe_local = pe_local + eTemp(i) |
307 |
> |
pot_local = pot_local + pot_Temp(i) |
308 |
|
enddo |
309 |
|
|
310 |
< |
eTemp = 0.0E0_DP |
311 |
< |
call scatter(eCol,eTemp,plan_col) |
310 |
> |
pot_Temp = 0.0_DP |
311 |
> |
|
312 |
> |
call scatter(pot_Col, pot_Temp, plan_col) |
313 |
|
do i = 1, nlocal |
314 |
< |
pe_local = pe_local + eTemp(i) |
314 |
> |
pot_local = pot_local + pot_Temp(i) |
315 |
|
enddo |
316 |
|
|
372 |
– |
pe = pe_local |
317 |
|
endif |
318 |
< |
#else |
319 |
< |
! Copy local array into return array for c |
320 |
< |
f = f+fTemp |
321 |
< |
t = t+tTemp |
318 |
> |
|
319 |
> |
if (FF_RequiresPostpairCalc() .and. SimRequiresPostpairCalc()) then |
320 |
> |
|
321 |
> |
if (FF_uses_RF .and. SimUsesRF()) then |
322 |
> |
|
323 |
> |
#ifdef IS_MPI |
324 |
> |
call scatter(rf_Row,rf,plan_row3d) |
325 |
> |
call scatter(rf_Col,rf_Temp,plan_col3d) |
326 |
> |
do i = 1,nlocal |
327 |
> |
rf(1:3,i) = rf(1:3,i) + rf_Temp(1:3,i) |
328 |
> |
end do |
329 |
|
#endif |
330 |
+ |
|
331 |
+ |
do i = 1, getNlocal() |
332 |
|
|
380 |
– |
potE = pe |
381 |
– |
|
382 |
– |
|
383 |
– |
if (do_stress) then |
333 |
|
#ifdef IS_MPI |
334 |
< |
mpi_allreduce = (tau,tauTemp,9,mpi_double_precision,mpi_sum, & |
386 |
< |
mpi_comm_world,mpi_err) |
334 |
> |
me_i = atid_row(i) |
335 |
|
#else |
336 |
< |
tau = tauTemp |
337 |
< |
#endif |
336 |
> |
me_i = atid(i) |
337 |
> |
#endif |
338 |
> |
call getElementProperty(atypes, me_i, "is_DP", is_DP_i) |
339 |
> |
if ( is_DP_i ) then |
340 |
> |
call getElementProperty(atypes, me_i, "dipole_moment", mu_i) |
341 |
> |
!! The reaction field needs to include a self contribution |
342 |
> |
!! to the field: |
343 |
> |
call accumulate_self_rf(i, mu_i, u_l) |
344 |
> |
!! Get the reaction field contribution to the |
345 |
> |
!! potential and torques: |
346 |
> |
call reaction_field(i, mu_i, u_l, rfpot, t, do_pot) |
347 |
> |
#ifdef IS_MPI |
348 |
> |
pot_local = pot_local + rfpot |
349 |
> |
#else |
350 |
> |
pot = pot + rfpot |
351 |
> |
#endif |
352 |
> |
endif |
353 |
> |
enddo |
354 |
> |
endif |
355 |
|
endif |
356 |
|
|
392 |
– |
end subroutine do_force_loop |
357 |
|
|
358 |
+ |
#ifdef IS_MPI |
359 |
|
|
360 |
+ |
if (do_pot) then |
361 |
+ |
pot = pot_local |
362 |
+ |
!! we assume the c code will do the allreduce to get the total potential |
363 |
+ |
!! we could do it right here if we needed to... |
364 |
+ |
endif |
365 |
|
|
366 |
+ |
if (do_stress) then |
367 |
+ |
mpi_allreduce(tau, tau_Temp,9,mpi_double_precision,mpi_sum, & |
368 |
+ |
mpi_comm_world,mpi_err) |
369 |
+ |
mpi_allreduce(virial, virial_Temp,1,mpi_double_precision,mpi_sum, & |
370 |
+ |
mpi_comm_world,mpi_err) |
371 |
+ |
endif |
372 |
|
|
373 |
+ |
#else |
374 |
|
|
375 |
+ |
if (do_stress) then |
376 |
+ |
tau = tau_Temp |
377 |
+ |
virial = virial_Temp |
378 |
+ |
endif |
379 |
|
|
380 |
+ |
#endif |
381 |
+ |
|
382 |
+ |
end subroutine do_force_loop |
383 |
|
|
384 |
|
|
401 |
– |
|
402 |
– |
|
385 |
|
!! Calculate any pre-force loop components and update nlist if necessary. |
386 |
|
subroutine do_preForce(updateNlist) |
387 |
|
logical, intent(inout) :: updateNlist |
390 |
|
|
391 |
|
end subroutine do_preForce |
392 |
|
|
411 |
– |
|
412 |
– |
|
413 |
– |
|
414 |
– |
|
415 |
– |
|
416 |
– |
|
417 |
– |
|
418 |
– |
|
419 |
– |
|
420 |
– |
|
421 |
– |
|
422 |
– |
|
393 |
|
!! Calculate any post force loop components, i.e. reaction field, etc. |
394 |
|
subroutine do_postForce() |
395 |
|
|
397 |
|
|
398 |
|
end subroutine do_postForce |
399 |
|
|
400 |
+ |
subroutine do_pair(i, j, rijsq, d, do_pot, do_stress) |
401 |
|
|
402 |
+ |
logical, intent(inout) :: do_pot, do_stress |
403 |
+ |
integer, intent(in) :: i, j |
404 |
+ |
real ( kind = dp ), intent(in) :: rijsq |
405 |
+ |
real ( kind = dp ) :: r |
406 |
+ |
real ( kind = dp ), intent(inout) :: d(3) |
407 |
|
|
408 |
< |
|
433 |
< |
|
434 |
< |
|
435 |
< |
|
436 |
< |
|
437 |
< |
|
438 |
< |
|
439 |
< |
|
440 |
< |
|
441 |
< |
|
442 |
< |
|
443 |
< |
|
444 |
< |
|
445 |
< |
|
446 |
< |
subroutine do_pair(atype_i,atype_j,i,j,r_ij,rx_ij,ry_ij,rz_ij) |
447 |
< |
type (atype ), pointer, intent(inout) :: atype_i |
448 |
< |
type (atype ), pointer, intent(inout) :: atype_j |
449 |
< |
integer :: i |
450 |
< |
integer :: j |
451 |
< |
real ( kind = dp ), intent(inout) :: rx_ij |
452 |
< |
real ( kind = dp ), intent(inout) :: ry_ij |
453 |
< |
real ( kind = dp ), intent(inout) :: rz_ij |
454 |
< |
|
455 |
< |
|
456 |
< |
real( kind = dp ) :: fx = 0.0_dp |
457 |
< |
real( kind = dp ) :: fy = 0.0_dp |
458 |
< |
real( kind = dp ) :: fz = 0.0_dp |
459 |
< |
|
460 |
< |
real( kind = dp ) :: drdx = 0.0_dp |
461 |
< |
real( kind = dp ) :: drdy = 0.0_dp |
462 |
< |
real( kind = dp ) :: drdz = 0.0_dp |
408 |
> |
r = sqrt(rijsq) |
409 |
|
|
410 |
+ |
logical :: is_LJ_i, is_LJ_j |
411 |
+ |
logical :: is_DP_i, is_DP_j |
412 |
+ |
logical :: is_Sticky_i, is_Sticky_j |
413 |
+ |
integer :: me_i, me_j |
414 |
|
|
415 |
|
#ifdef IS_MPI |
416 |
|
|
417 |
< |
if (Atype_i%is_LJ .and. Atype_j%is_LJ) then |
418 |
< |
call getLJForce(r,pot,dudr,ljAtype_i,ljAtype_j,fx,fy,fz) |
469 |
< |
endif |
417 |
> |
me_i = atid_row(i) |
418 |
> |
me_j = atid_col(j) |
419 |
|
|
471 |
– |
if (Atype_i%is_dp .and. Atype_j%is_dp) then |
472 |
– |
|
473 |
– |
call dipole_dipole(i, j, atype_i, atype_j, rx_ij, ry_ij, rz_ij, r_ij, & |
474 |
– |
ulRow(:,i), ulCol(:,j), rt, rrf, pot) |
475 |
– |
|
476 |
– |
if (do_reaction_field) then |
477 |
– |
call accumulate_rf(i, j, r_ij, rflRow(:,i), rflCol(:j), & |
478 |
– |
ulRow(:i), ulCol(:,j), rt, rrf) |
479 |
– |
endif |
480 |
– |
|
481 |
– |
endif |
482 |
– |
|
483 |
– |
if (Atype_i%is_sticky .and. Atype_j%is_sticky) then |
484 |
– |
call getstickyforce(r,pot,dudr,ljAtype_i,ljAtype_j) |
485 |
– |
endif |
486 |
– |
|
420 |
|
#else |
421 |
|
|
422 |
< |
if (Atype_i%is_LJ .and. Atype_j%is_LJ) then |
423 |
< |
call getLJForce(r,pot,dudr,ljAtype_i,ljAtype_j,fx,fy,fz) |
491 |
< |
endif |
422 |
> |
me_i = atid(i) |
423 |
> |
me_j = atid(j) |
424 |
|
|
425 |
< |
if (Atype_i%is_dp .and. Atype_j%is_dp) then |
494 |
< |
call dipole_dipole(i, j, atype_i, atype_j, rx_ij, ry_ij, rz_ij, r_ij, & |
495 |
< |
ul(:,i), ul(:,j), rt, rrf, pot) |
425 |
> |
#endif |
426 |
|
|
497 |
– |
if (do_reaction_field) then |
498 |
– |
call accumulate_rf(i, j, r_ij, rfl(:,i), rfl(:j), & |
499 |
– |
ul(:,i), ul(:,j), rt, rrf) |
500 |
– |
endif |
427 |
|
|
428 |
+ |
if (FF_uses_LJ .and. SimUsesLJ()) then |
429 |
+ |
call getElementProperty(atypes, me_i, "is_LJ", is_LJ_i) |
430 |
+ |
call getElementProperty(atypes, me_j, "is_LJ", is_LJ_j) |
431 |
+ |
|
432 |
+ |
if ( is_LJ_i .and. is_LJ_j ) & |
433 |
+ |
call do_lj_pair(i, j, d, r, rijsq, pot, f, do_pot, do_stress) |
434 |
|
endif |
435 |
+ |
|
436 |
|
|
437 |
< |
if (Atype_i%is_sticky .and. Atype_j%is_sticky) then |
438 |
< |
call getstickyforce(r,pot,dudr,ljAtype_i,ljAtype_j) |
439 |
< |
endif |
507 |
< |
|
508 |
< |
#endif |
509 |
< |
|
437 |
> |
if (FF_uses_DP .and. SimUsesDP()) then |
438 |
> |
call getElementProperty(atypes, me_i, "is_DP", is_DP_i) |
439 |
> |
call getElementProperty(atypes, me_j, "is_DP", is_DP_j) |
440 |
|
|
441 |
< |
#ifdef IS_MPI |
442 |
< |
eRow(i) = eRow(i) + pot*0.5 |
443 |
< |
eCol(i) = eCol(i) + pot*0.5 |
444 |
< |
#else |
445 |
< |
pe = pe + pot |
516 |
< |
#endif |
441 |
> |
if ( is_DP_i .and. is_DP_j ) then |
442 |
> |
|
443 |
> |
call do_dipole_pair(i, j, d, r, pot, u_l, f, t, do_pot, do_stress) |
444 |
> |
|
445 |
> |
if (FF_uses_RF .and. SimUsesRF()) then |
446 |
|
|
447 |
< |
drdx = -rxij / r |
448 |
< |
drdy = -ryij / r |
449 |
< |
drdz = -rzij / r |
450 |
< |
|
451 |
< |
fx = dudr * drdx |
452 |
< |
fy = dudr * drdy |
453 |
< |
fz = dudr * drdz |
525 |
< |
|
526 |
< |
#ifdef IS_MPI |
527 |
< |
fCol(1,j) = fCol(1,j) - fx |
528 |
< |
fCol(2,j) = fCol(2,j) - fy |
529 |
< |
fCol(3,j) = fCol(3,j) - fz |
530 |
< |
|
531 |
< |
fRow(1,j) = fRow(1,j) + fx |
532 |
< |
fRow(2,j) = fRow(2,j) + fy |
533 |
< |
fRow(3,j) = fRow(3,j) + fz |
534 |
< |
#else |
535 |
< |
fTemp(1,j) = fTemp(1,j) - fx |
536 |
< |
fTemp(2,j) = fTemp(2,j) - fy |
537 |
< |
fTemp(3,j) = fTemp(3,j) - fz |
538 |
< |
fTemp(1,i) = fTemp(1,i) + fx |
539 |
< |
fTemp(2,i) = fTemp(2,i) + fy |
540 |
< |
fTemp(3,i) = fTemp(3,i) + fz |
541 |
< |
#endif |
542 |
< |
|
543 |
< |
if (do_stress) then |
544 |
< |
tauTemp(1) = tauTemp(1) + fx * rxij |
545 |
< |
tauTemp(2) = tauTemp(2) + fx * ryij |
546 |
< |
tauTemp(3) = tauTemp(3) + fx * rzij |
547 |
< |
tauTemp(4) = tauTemp(4) + fy * rxij |
548 |
< |
tauTemp(5) = tauTemp(5) + fy * ryij |
549 |
< |
tauTemp(6) = tauTemp(6) + fy * rzij |
550 |
< |
tauTemp(7) = tauTemp(7) + fz * rxij |
551 |
< |
tauTemp(8) = tauTemp(8) + fz * ryij |
552 |
< |
tauTemp(9) = tauTemp(9) + fz * rzij |
553 |
< |
endif |
447 |
> |
call accumulate_rf(i, j, r, u_l) |
448 |
> |
call rf_correct_forces(i, j, d, r, u_l, f, do_stress) |
449 |
> |
|
450 |
> |
endif |
451 |
> |
|
452 |
> |
endif |
453 |
> |
endif |
454 |
|
|
455 |
+ |
if (FF_uses_Sticky .and. SimUsesSticky()) then |
456 |
|
|
457 |
< |
|
457 |
> |
call getElementProperty(atypes, me_i, "is_Sticky", is_Sticky_i) |
458 |
> |
call getElementProperty(atypes, me_j, "is_Sticky", is_Sticky_j) |
459 |
> |
|
460 |
> |
if ( is_Sticky_i .and. is_Sticky_j ) then |
461 |
> |
call do_sticky_pair(i, j, d, r, rijsq, A, pot, f, t, & |
462 |
> |
do_pot, do_stress) |
463 |
> |
endif |
464 |
> |
endif |
465 |
> |
|
466 |
|
end subroutine do_pair |
467 |
|
|
468 |
|
|
469 |
< |
|
470 |
< |
|
562 |
< |
|
563 |
< |
|
564 |
< |
|
565 |
< |
|
566 |
< |
|
567 |
< |
|
568 |
< |
|
569 |
< |
|
570 |
< |
|
571 |
< |
|
572 |
< |
|
573 |
< |
|
574 |
< |
subroutine get_interatomic_vector(q_i,q_j,rx_ij,ry_ij,rz_ij,r_sq,r_ij) |
575 |
< |
!---------------- Arguments------------------------------- |
576 |
< |
!! index i |
577 |
< |
|
578 |
< |
!! Position array |
469 |
> |
subroutine get_interatomic_vector(q_i, q_j, d, r_sq) |
470 |
> |
|
471 |
|
real (kind = dp), dimension(3) :: q_i |
472 |
|
real (kind = dp), dimension(3) :: q_j |
581 |
– |
!! x component of vector between i and j |
582 |
– |
real ( kind = dp ), intent(out) :: rx_ij |
583 |
– |
!! y component of vector between i and j |
584 |
– |
real ( kind = dp ), intent(out) :: ry_ij |
585 |
– |
!! z component of vector between i and j |
586 |
– |
real ( kind = dp ), intent(out) :: rz_ij |
587 |
– |
!! magnitude of r squared |
473 |
|
real ( kind = dp ), intent(out) :: r_sq |
589 |
– |
!! magnitude of vector r between atoms i and j. |
590 |
– |
real ( kind = dp ), intent(out) :: r_ij |
591 |
– |
!! wrap into periodic box. |
592 |
– |
logical, intent(in) :: wrap |
593 |
– |
|
594 |
– |
!--------------- Local Variables--------------------------- |
595 |
– |
!! Distance between i and j |
474 |
|
real( kind = dp ) :: d(3) |
597 |
– |
!---------------- END DECLARATIONS------------------------- |
475 |
|
|
599 |
– |
|
600 |
– |
! Find distance between i and j |
476 |
|
d(1:3) = q_i(1:3) - q_j(1:3) |
477 |
< |
|
478 |
< |
! Wrap back into periodic box if necessary |
479 |
< |
if ( wrap ) then |
477 |
> |
|
478 |
> |
! Wrap back into periodic box if necessary |
479 |
> |
if ( isPBC() ) then |
480 |
|
d(1:3) = d(1:3) - thisSim%box(1:3) * sign(1.0_dp,thisSim%box(1:3)) * & |
481 |
|
int(abs(d(1:3)/thisSim%box(1:3) + 0.5_dp) |
482 |
< |
end if |
482 |
> |
endif |
483 |
|
|
609 |
– |
! Find Magnitude of the vector |
484 |
|
r_sq = dot_product(d,d) |
485 |
< |
r_ij = sqrt(r_sq) |
485 |
> |
|
486 |
> |
end subroutine get_interatomic_vector |
487 |
|
|
488 |
< |
! Set each component for force calculation |
489 |
< |
rx_ij = d(1) |
615 |
< |
ry_ij = d(2) |
616 |
< |
rz_ij = d(3) |
488 |
> |
subroutine check_initialization(error) |
489 |
> |
integer, intent(out) :: error |
490 |
|
|
491 |
+ |
error = 0 |
492 |
+ |
! Make sure we are properly initialized. |
493 |
+ |
if (.not. do_Forces_initialized) then |
494 |
+ |
write(default_error,*) "ERROR: do_Forces has not been initialized!" |
495 |
+ |
error = -1 |
496 |
+ |
return |
497 |
+ |
endif |
498 |
+ |
#ifdef IS_MPI |
499 |
+ |
if (.not. isMPISimSet()) then |
500 |
+ |
write(default_error,*) "ERROR: mpiSimulation has not been initialized!" |
501 |
+ |
error = -1 |
502 |
+ |
return |
503 |
+ |
endif |
504 |
+ |
#endif |
505 |
|
|
506 |
< |
end subroutine get_interatomic_vector |
506 |
> |
return |
507 |
> |
end subroutine check_initialization |
508 |
|
|
509 |
< |
subroutine zero_module_variables() |
509 |
> |
|
510 |
> |
subroutine zero_work_arrays() |
511 |
> |
|
512 |
> |
#ifdef IS_MPI |
513 |
|
|
514 |
< |
#ifndef IS_MPI |
515 |
< |
|
625 |
< |
pe = 0.0E0_DP |
626 |
< |
tauTemp = 0.0_dp |
627 |
< |
fTemp = 0.0_dp |
628 |
< |
tTemp = 0.0_dp |
629 |
< |
#else |
630 |
< |
qRow = 0.0_dp |
631 |
< |
qCol = 0.0_dp |
514 |
> |
q_Row = 0.0_dp |
515 |
> |
q_Col = 0.0_dp |
516 |
|
|
517 |
< |
muRow = 0.0_dp |
518 |
< |
muCol = 0.0_dp |
517 |
> |
u_l_Row = 0.0_dp |
518 |
> |
u_l_Col = 0.0_dp |
519 |
|
|
520 |
< |
u_lRow = 0.0_dp |
521 |
< |
u_lCol = 0.0_dp |
520 |
> |
A_Row = 0.0_dp |
521 |
> |
A_Col = 0.0_dp |
522 |
|
|
523 |
< |
ARow = 0.0_dp |
524 |
< |
ACol = 0.0_dp |
525 |
< |
|
526 |
< |
fRow = 0.0_dp |
527 |
< |
fCol = 0.0_dp |
528 |
< |
|
529 |
< |
|
646 |
< |
tRow = 0.0_dp |
647 |
< |
tCol = 0.0_dp |
523 |
> |
f_Row = 0.0_dp |
524 |
> |
f_Col = 0.0_dp |
525 |
> |
f_Temp = 0.0_dp |
526 |
> |
|
527 |
> |
t_Row = 0.0_dp |
528 |
> |
t_Col = 0.0_dp |
529 |
> |
t_Temp = 0.0_dp |
530 |
|
|
531 |
< |
|
531 |
> |
pot_Row = 0.0_dp |
532 |
> |
pot_Col = 0.0_dp |
533 |
> |
pot_Temp = 0.0_dp |
534 |
|
|
651 |
– |
eRow = 0.0_dp |
652 |
– |
eCol = 0.0_dp |
653 |
– |
eTemp = 0.0_dp |
535 |
|
#endif |
536 |
|
|
537 |
< |
end subroutine zero_module_variables |
537 |
> |
tau_Temp = 0.0_dp |
538 |
> |
virial_Temp = 0.0_dp |
539 |
> |
|
540 |
> |
end subroutine zero_work_arrays |
541 |
> |
|
542 |
|
|
658 |
– |
#ifdef IS_MPI |
543 |
|
!! Function to properly build neighbor lists in MPI using newtons 3rd law. |
544 |
|
!! We don't want 2 processors doing the same i j pair twice. |
545 |
|
!! Also checks to see if i and j are the same particle. |
546 |
< |
function mpi_cycle_jLoop(i,j) result(do_cycle) |
546 |
> |
function checkExcludes(atom1,atom2) result(do_cycle) |
547 |
|
!--------------- Arguments-------------------------- |
548 |
|
! Index i |
549 |
< |
integer,intent(in) :: i |
549 |
> |
integer,intent(in) :: atom1 |
550 |
|
! Index j |
551 |
< |
integer,intent(in) :: j |
551 |
> |
integer,intent(in), optional :: atom2 |
552 |
|
! Result do_cycle |
553 |
|
logical :: do_cycle |
554 |
|
!--------------- Local variables-------------------- |
555 |
|
integer :: tag_i |
556 |
|
integer :: tag_j |
557 |
< |
!--------------- END DECLARATIONS------------------ |
558 |
< |
tag_i = tagRow(i) |
557 |
> |
integer :: i |
558 |
> |
!--------------- END DECLARATIONS------------------ |
559 |
> |
do_cycle = .false. |
560 |
> |
|
561 |
> |
#ifdef IS_MPI |
562 |
> |
tag_i = tagRow(atom1) |
563 |
> |
#else |
564 |
> |
tag_i = tag(atom1) |
565 |
> |
#endif |
566 |
> |
|
567 |
> |
!! Check global excludes first |
568 |
> |
if (.not. present(atom2)) then |
569 |
> |
do i = 1,nGlobalExcludes |
570 |
> |
if (excludeGlobal(i) == tag_i) then |
571 |
> |
do_cycle = .true. |
572 |
> |
return |
573 |
> |
end if |
574 |
> |
end do |
575 |
> |
return !! return after checking globals |
576 |
> |
end if |
577 |
> |
|
578 |
> |
!! we return if j not present here. |
579 |
|
tag_j = tagColumn(j) |
580 |
|
|
581 |
< |
do_cycle = .false. |
581 |
> |
|
582 |
|
|
583 |
|
if (tag_i == tag_j) then |
584 |
|
do_cycle = .true. |
591 |
|
else |
592 |
|
if (mod(tag_i + tag_j,2) == 1) do_cycle = .true. |
593 |
|
endif |
690 |
– |
end function mpi_cycle_jLoop |
691 |
– |
#endif |
594 |
|
|
595 |
+ |
|
596 |
+ |
|
597 |
+ |
do i = 1, nLocalExcludes |
598 |
+ |
if (tag_i = excludes(1,i) .and. excludes(2,i) < 0) then |
599 |
+ |
do_cycle = .true. |
600 |
+ |
return |
601 |
+ |
end if |
602 |
+ |
end do |
603 |
+ |
|
604 |
+ |
|
605 |
+ |
end function checkExcludes |
606 |
+ |
|
607 |
+ |
function FF_UsesDirectionalAtoms() result(doesit) |
608 |
+ |
logical :: doesit |
609 |
+ |
doesit = FF_uses_dipoles .or. FF_uses_sticky .or. & |
610 |
+ |
FF_uses_GB .or. FF_uses_RF |
611 |
+ |
end function FF_UsesDirectionalAtoms |
612 |
+ |
|
613 |
+ |
function FF_RequiresPrepairCalc() result(doesit) |
614 |
+ |
logical :: doesit |
615 |
+ |
doesit = FF_uses_EAM |
616 |
+ |
end function FF_RequiresPrepairCalc |
617 |
+ |
|
618 |
+ |
function FF_RequiresPostpairCalc() result(doesit) |
619 |
+ |
logical :: doesit |
620 |
+ |
doesit = FF_uses_RF |
621 |
+ |
end function FF_RequiresPostpairCalc |
622 |
+ |
|
623 |
|
end module do_Forces |