1 |
mmeineke |
377 |
!! 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 |
7 |
tim |
1144 |
!! @version $Id: do_Forces.F90,v 1.53 2004-05-01 18:52:38 tim Exp $, $Date: 2004-05-01 18:52:38 $, $Name: not supported by cvs2svn $, $Revision: 1.53 $ |
8 |
mmeineke |
377 |
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9 |
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module do_Forces |
10 |
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use force_globals |
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use simulation |
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use definitions |
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use atype_module |
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use neighborLists |
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use lj |
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use sticky_pair |
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use dipole_dipole |
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gezelter |
941 |
use charge_charge |
19 |
mmeineke |
377 |
use reaction_field |
20 |
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use gb_pair |
21 |
mmeineke |
626 |
use vector_class |
22 |
chuckv |
650 |
use eam |
23 |
chuckv |
657 |
use status |
24 |
mmeineke |
377 |
#ifdef IS_MPI |
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use mpiSimulation |
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#endif |
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implicit none |
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PRIVATE |
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#define __FORTRAN90 |
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#include "fForceField.h" |
33 |
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34 |
chuckv |
900 |
logical, save :: haveRlist = .false. |
35 |
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logical, save :: haveNeighborList = .false. |
36 |
mmeineke |
626 |
logical, save :: havePolicies = .false. |
37 |
chuckv |
900 |
logical, save :: haveSIMvariables = .false. |
38 |
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logical, save :: havePropertyMap = .false. |
39 |
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logical, save :: haveSaneForceField = .false. |
40 |
mmeineke |
377 |
logical, save :: FF_uses_LJ |
41 |
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logical, save :: FF_uses_sticky |
42 |
gezelter |
941 |
logical, save :: FF_uses_charges |
43 |
mmeineke |
377 |
logical, save :: FF_uses_dipoles |
44 |
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logical, save :: FF_uses_RF |
45 |
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logical, save :: FF_uses_GB |
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logical, save :: FF_uses_EAM |
47 |
chuckv |
900 |
logical, save :: SIM_uses_LJ |
48 |
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logical, save :: SIM_uses_sticky |
49 |
gezelter |
941 |
logical, save :: SIM_uses_charges |
50 |
chuckv |
900 |
logical, save :: SIM_uses_dipoles |
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logical, save :: SIM_uses_RF |
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logical, save :: SIM_uses_GB |
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logical, save :: SIM_uses_EAM |
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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_directional_atoms |
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logical, save :: SIM_uses_PBC |
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gezelter |
1138 |
logical, save :: SIM_uses_molecular_cutoffs |
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mmeineke |
377 |
|
60 |
mmeineke |
626 |
real(kind=dp), save :: rlist, rlistsq |
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mmeineke |
377 |
public :: init_FF |
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public :: do_force_loop |
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mmeineke |
626 |
public :: setRlistDF |
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mmeineke |
377 |
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66 |
chuckv |
900 |
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67 |
chuckv |
694 |
#ifdef PROFILE |
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chuckv |
883 |
public :: getforcetime |
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real, save :: forceTime = 0 |
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real :: forceTimeInitial, forceTimeFinal |
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mmeineke |
891 |
integer :: nLoops |
72 |
chuckv |
694 |
#endif |
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chuckv |
900 |
type :: Properties |
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logical :: is_lj = .false. |
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logical :: is_sticky = .false. |
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logical :: is_dp = .false. |
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logical :: is_gb = .false. |
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logical :: is_eam = .false. |
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gezelter |
941 |
logical :: is_charge = .false. |
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real(kind=DP) :: charge = 0.0_DP |
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chuckv |
900 |
real(kind=DP) :: dipole_moment = 0.0_DP |
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end type Properties |
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chuckv |
895 |
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chuckv |
900 |
type(Properties), dimension(:),allocatable :: PropertyMap |
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mmeineke |
377 |
contains |
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mmeineke |
626 |
subroutine setRlistDF( this_rlist ) |
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real(kind=dp) :: this_rlist |
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rlist = this_rlist |
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rlistsq = rlist * rlist |
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haveRlist = .true. |
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end subroutine setRlistDF |
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chuckv |
900 |
subroutine createPropertyMap(status) |
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integer :: nAtypes |
102 |
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integer :: status |
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integer :: i |
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logical :: thisProperty |
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real (kind=DP) :: thisDPproperty |
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status = 0 |
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nAtypes = getSize(atypes) |
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if (nAtypes == 0) then |
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status = -1 |
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return |
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end if |
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if (.not. allocated(PropertyMap)) then |
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allocate(PropertyMap(nAtypes)) |
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endif |
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do i = 1, nAtypes |
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call getElementProperty(atypes, i, "is_LJ", thisProperty) |
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PropertyMap(i)%is_LJ = thisProperty |
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gezelter |
941 |
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call getElementProperty(atypes, i, "is_Charge", thisProperty) |
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PropertyMap(i)%is_Charge = thisProperty |
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if (thisProperty) then |
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call getElementProperty(atypes, i, "charge", thisDPproperty) |
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PropertyMap(i)%charge = thisDPproperty |
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endif |
131 |
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chuckv |
900 |
call getElementProperty(atypes, i, "is_DP", thisProperty) |
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PropertyMap(i)%is_DP = thisProperty |
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135 |
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if (thisProperty) then |
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call getElementProperty(atypes, i, "dipole_moment", thisDPproperty) |
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PropertyMap(i)%dipole_moment = thisDPproperty |
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endif |
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140 |
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call getElementProperty(atypes, i, "is_Sticky", thisProperty) |
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PropertyMap(i)%is_Sticky = thisProperty |
142 |
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call getElementProperty(atypes, i, "is_GB", thisProperty) |
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PropertyMap(i)%is_GB = thisProperty |
144 |
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call getElementProperty(atypes, i, "is_EAM", thisProperty) |
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PropertyMap(i)%is_EAM = thisProperty |
146 |
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end do |
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148 |
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havePropertyMap = .true. |
149 |
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150 |
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end subroutine createPropertyMap |
151 |
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152 |
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subroutine setSimVariables() |
153 |
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SIM_uses_LJ = SimUsesLJ() |
154 |
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SIM_uses_sticky = SimUsesSticky() |
155 |
gezelter |
941 |
SIM_uses_charges = SimUsesCharges() |
156 |
chuckv |
900 |
SIM_uses_dipoles = SimUsesDipoles() |
157 |
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SIM_uses_RF = SimUsesRF() |
158 |
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SIM_uses_GB = SimUsesGB() |
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SIM_uses_EAM = SimUsesEAM() |
160 |
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SIM_requires_postpair_calc = SimRequiresPostpairCalc() |
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SIM_requires_prepair_calc = SimRequiresPrepairCalc() |
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SIM_uses_directional_atoms = SimUsesDirectionalAtoms() |
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SIM_uses_PBC = SimUsesPBC() |
164 |
tim |
1144 |
!SIM_uses_molecular_cutoffs = SimUsesMolecularCutoffs() |
165 |
chuckv |
900 |
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166 |
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haveSIMvariables = .true. |
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return |
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end subroutine setSimVariables |
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subroutine doReadyCheck(error) |
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integer, intent(out) :: error |
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integer :: myStatus |
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error = 0 |
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if (.not. havePropertyMap) then |
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myStatus = 0 |
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call createPropertyMap(myStatus) |
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if (myStatus .ne. 0) then |
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write(default_error, *) 'createPropertyMap failed in do_Forces!' |
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error = -1 |
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return |
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endif |
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endif |
190 |
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191 |
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if (.not. haveSIMvariables) then |
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call setSimVariables() |
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endif |
194 |
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195 |
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if (.not. haveRlist) then |
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write(default_error, *) 'rList has not been set in do_Forces!' |
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error = -1 |
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return |
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endif |
200 |
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201 |
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if (SIM_uses_LJ .and. FF_uses_LJ) then |
202 |
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if (.not. havePolicies) then |
203 |
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write(default_error, *) 'LJ mixing Policies have not been set in do_Forces!' |
204 |
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error = -1 |
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return |
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endif |
207 |
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endif |
208 |
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209 |
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if (.not. haveNeighborList) then |
210 |
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write(default_error, *) 'neighbor list has not been initialized in do_Forces!' |
211 |
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error = -1 |
212 |
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return |
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end if |
214 |
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215 |
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if (.not. haveSaneForceField) then |
216 |
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write(default_error, *) 'Force Field is not sane in do_Forces!' |
217 |
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error = -1 |
218 |
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return |
219 |
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end if |
220 |
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221 |
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#ifdef IS_MPI |
222 |
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if (.not. isMPISimSet()) then |
223 |
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write(default_error,*) "ERROR: mpiSimulation has not been initialized!" |
224 |
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error = -1 |
225 |
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return |
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endif |
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#endif |
228 |
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return |
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end subroutine doReadyCheck |
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231 |
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232 |
mmeineke |
377 |
subroutine init_FF(LJMIXPOLICY, use_RF_c, thisStat) |
233 |
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234 |
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integer, intent(in) :: LJMIXPOLICY |
235 |
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logical, intent(in) :: use_RF_c |
236 |
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237 |
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integer, intent(out) :: thisStat |
238 |
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integer :: my_status, nMatches |
239 |
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integer, pointer :: MatchList(:) => null() |
240 |
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real(kind=dp) :: rcut, rrf, rt, dielect |
241 |
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242 |
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!! assume things are copacetic, unless they aren't |
243 |
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thisStat = 0 |
244 |
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245 |
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!! Fortran's version of a cast: |
246 |
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FF_uses_RF = use_RF_c |
247 |
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248 |
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!! init_FF is called *after* all of the atom types have been |
249 |
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!! defined in atype_module using the new_atype subroutine. |
250 |
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!! |
251 |
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!! this will scan through the known atypes and figure out what |
252 |
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!! interactions are used by the force field. |
253 |
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254 |
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FF_uses_LJ = .false. |
255 |
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FF_uses_sticky = .false. |
256 |
gezelter |
941 |
FF_uses_charges = .false. |
257 |
mmeineke |
377 |
FF_uses_dipoles = .false. |
258 |
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FF_uses_GB = .false. |
259 |
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FF_uses_EAM = .false. |
260 |
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261 |
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call getMatchingElementList(atypes, "is_LJ", .true., nMatches, MatchList) |
262 |
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if (nMatches .gt. 0) FF_uses_LJ = .true. |
263 |
gezelter |
941 |
|
264 |
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call getMatchingElementList(atypes, "is_Charge", .true., nMatches, MatchList) |
265 |
tim |
1113 |
if (nMatches .gt. 0) FF_uses_charges = .true. |
266 |
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267 |
mmeineke |
377 |
call getMatchingElementList(atypes, "is_DP", .true., nMatches, MatchList) |
268 |
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if (nMatches .gt. 0) FF_uses_dipoles = .true. |
269 |
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270 |
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call getMatchingElementList(atypes, "is_Sticky", .true., nMatches, & |
271 |
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MatchList) |
272 |
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if (nMatches .gt. 0) FF_uses_Sticky = .true. |
273 |
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274 |
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call getMatchingElementList(atypes, "is_GB", .true., nMatches, MatchList) |
275 |
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if (nMatches .gt. 0) FF_uses_GB = .true. |
276 |
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277 |
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call getMatchingElementList(atypes, "is_EAM", .true., nMatches, MatchList) |
278 |
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if (nMatches .gt. 0) FF_uses_EAM = .true. |
279 |
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280 |
chuckv |
900 |
!! Assume sanity (for the sake of argument) |
281 |
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haveSaneForceField = .true. |
282 |
tim |
1132 |
!! |
283 |
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if (FF_uses_charges) then |
284 |
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dielect = getDielect() |
285 |
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call initialize_charge(dielect) |
286 |
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endif |
287 |
chuckv |
900 |
|
288 |
tim |
1132 |
|
289 |
mmeineke |
377 |
!! check to make sure the FF_uses_RF setting makes sense |
290 |
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291 |
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if (FF_uses_dipoles) then |
292 |
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if (FF_uses_RF) then |
293 |
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dielect = getDielect() |
294 |
mmeineke |
626 |
call initialize_rf(dielect) |
295 |
mmeineke |
377 |
endif |
296 |
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else |
297 |
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if (FF_uses_RF) then |
298 |
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write(default_error,*) 'Using Reaction Field with no dipoles? Huh?' |
299 |
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thisStat = -1 |
300 |
chuckv |
900 |
haveSaneForceField = .false. |
301 |
mmeineke |
377 |
return |
302 |
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endif |
303 |
mmeineke |
626 |
endif |
304 |
mmeineke |
377 |
|
305 |
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if (FF_uses_LJ) then |
306 |
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307 |
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select case (LJMIXPOLICY) |
308 |
gezelter |
834 |
case (LB_MIXING_RULE) |
309 |
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call init_lj_FF(LB_MIXING_RULE, my_status) |
310 |
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case (EXPLICIT_MIXING_RULE) |
311 |
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call init_lj_FF(EXPLICIT_MIXING_RULE, my_status) |
312 |
mmeineke |
377 |
case default |
313 |
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write(default_error,*) 'unknown LJ Mixing Policy!' |
314 |
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thisStat = -1 |
315 |
chuckv |
900 |
haveSaneForceField = .false. |
316 |
mmeineke |
377 |
return |
317 |
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end select |
318 |
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if (my_status /= 0) then |
319 |
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thisStat = -1 |
320 |
chuckv |
900 |
haveSaneForceField = .false. |
321 |
mmeineke |
377 |
return |
322 |
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end if |
323 |
chuckv |
900 |
havePolicies = .true. |
324 |
mmeineke |
377 |
endif |
325 |
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326 |
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if (FF_uses_sticky) then |
327 |
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call check_sticky_FF(my_status) |
328 |
|
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if (my_status /= 0) then |
329 |
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thisStat = -1 |
330 |
chuckv |
900 |
haveSaneForceField = .false. |
331 |
mmeineke |
377 |
return |
332 |
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end if |
333 |
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endif |
334 |
chuckv |
657 |
|
335 |
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336 |
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if (FF_uses_EAM) then |
337 |
chuckv |
801 |
call init_EAM_FF(my_status) |
338 |
chuckv |
657 |
if (my_status /= 0) then |
339 |
chuckv |
900 |
write(default_error, *) "init_EAM_FF returned a bad status" |
340 |
chuckv |
657 |
thisStat = -1 |
341 |
chuckv |
900 |
haveSaneForceField = .false. |
342 |
chuckv |
657 |
return |
343 |
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end if |
344 |
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endif |
345 |
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|
346 |
mmeineke |
377 |
if (FF_uses_GB) then |
347 |
|
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call check_gb_pair_FF(my_status) |
348 |
|
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if (my_status .ne. 0) then |
349 |
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thisStat = -1 |
350 |
chuckv |
900 |
haveSaneForceField = .false. |
351 |
mmeineke |
377 |
return |
352 |
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endif |
353 |
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endif |
354 |
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355 |
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if (FF_uses_GB .and. FF_uses_LJ) then |
356 |
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endif |
357 |
chuckv |
900 |
if (.not. haveNeighborList) then |
358 |
chuckv |
480 |
!! Create neighbor lists |
359 |
chuckv |
898 |
call expandNeighborList(nLocal, my_status) |
360 |
chuckv |
480 |
if (my_Status /= 0) then |
361 |
|
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write(default_error,*) "SimSetup: ExpandNeighborList returned error." |
362 |
|
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thisStat = -1 |
363 |
|
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return |
364 |
|
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endif |
365 |
chuckv |
900 |
haveNeighborList = .true. |
366 |
chuckv |
480 |
endif |
367 |
chuckv |
657 |
|
368 |
mmeineke |
377 |
end subroutine init_FF |
369 |
|
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370 |
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371 |
|
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!! Does force loop over i,j pairs. Calls do_pair to calculates forces. |
372 |
|
|
!-------------------------------------------------------------> |
373 |
tim |
1144 |
subroutine do_force_loop(q, qcom, A, u_l, f, t, tau, pot, & |
374 |
gezelter |
1138 |
do_pot_c, do_stress_c, error) |
375 |
mmeineke |
377 |
!! Position array provided by C, dimensioned by getNlocal |
376 |
chuckv |
898 |
real ( kind = dp ), dimension(3,nLocal) :: q |
377 |
gezelter |
1138 |
!! molecular center-of-mass position array |
378 |
|
|
real ( kind = dp ), dimension(3,nLocal) :: qcom |
379 |
mmeineke |
377 |
!! Rotation Matrix for each long range particle in simulation. |
380 |
chuckv |
898 |
real( kind = dp), dimension(9,nLocal) :: A |
381 |
mmeineke |
377 |
!! Unit vectors for dipoles (lab frame) |
382 |
chuckv |
898 |
real( kind = dp ), dimension(3,nLocal) :: u_l |
383 |
mmeineke |
377 |
!! Force array provided by C, dimensioned by getNlocal |
384 |
chuckv |
898 |
real ( kind = dp ), dimension(3,nLocal) :: f |
385 |
mmeineke |
377 |
!! Torsion array provided by C, dimensioned by getNlocal |
386 |
chuckv |
898 |
real( kind = dp ), dimension(3,nLocal) :: t |
387 |
chuckv |
895 |
|
388 |
mmeineke |
377 |
!! Stress Tensor |
389 |
|
|
real( kind = dp), dimension(9) :: tau |
390 |
|
|
real ( kind = dp ) :: pot |
391 |
|
|
logical ( kind = 2) :: do_pot_c, do_stress_c |
392 |
|
|
logical :: do_pot |
393 |
|
|
logical :: do_stress |
394 |
chuckv |
439 |
#ifdef IS_MPI |
395 |
chuckv |
441 |
real( kind = DP ) :: pot_local |
396 |
mmeineke |
377 |
integer :: nrow |
397 |
|
|
integer :: ncol |
398 |
chuckv |
694 |
integer :: nprocs |
399 |
mmeineke |
377 |
#endif |
400 |
|
|
integer :: natoms |
401 |
|
|
logical :: update_nlist |
402 |
|
|
integer :: i, j, jbeg, jend, jnab |
403 |
|
|
integer :: nlist |
404 |
gezelter |
1138 |
real( kind = DP ) :: rijsq, rcijsq |
405 |
|
|
real(kind=dp),dimension(3) :: d, dc |
406 |
mmeineke |
377 |
real(kind=dp) :: rfpot, mu_i, virial |
407 |
chuckv |
897 |
integer :: me_i, me_j |
408 |
mmeineke |
377 |
logical :: is_dp_i |
409 |
|
|
integer :: neighborListSize |
410 |
|
|
integer :: listerror, error |
411 |
|
|
integer :: localError |
412 |
chuckv |
897 |
integer :: propPack_i, propPack_j |
413 |
mmeineke |
626 |
|
414 |
gezelter |
845 |
real(kind=dp) :: listSkin = 1.0 |
415 |
gezelter |
1138 |
|
416 |
mmeineke |
377 |
!! initialize local variables |
417 |
gezelter |
1138 |
|
418 |
mmeineke |
377 |
#ifdef IS_MPI |
419 |
chuckv |
441 |
pot_local = 0.0_dp |
420 |
mmeineke |
377 |
nrow = getNrow(plan_row) |
421 |
|
|
ncol = getNcol(plan_col) |
422 |
|
|
#else |
423 |
|
|
natoms = nlocal |
424 |
|
|
#endif |
425 |
gezelter |
1138 |
|
426 |
chuckv |
900 |
call doReadyCheck(localError) |
427 |
mmeineke |
377 |
if ( localError .ne. 0 ) then |
428 |
chuckv |
900 |
call handleError("do_force_loop", "Not Initialized") |
429 |
mmeineke |
377 |
error = -1 |
430 |
|
|
return |
431 |
|
|
end if |
432 |
|
|
call zero_work_arrays() |
433 |
gezelter |
1138 |
|
434 |
mmeineke |
377 |
do_pot = do_pot_c |
435 |
|
|
do_stress = do_stress_c |
436 |
gezelter |
1138 |
|
437 |
mmeineke |
377 |
! Gather all information needed by all force loops: |
438 |
|
|
|
439 |
|
|
#ifdef IS_MPI |
440 |
gezelter |
1138 |
|
441 |
mmeineke |
377 |
call gather(q,q_Row,plan_row3d) |
442 |
|
|
call gather(q,q_Col,plan_col3d) |
443 |
gezelter |
1138 |
|
444 |
|
|
if (SIM_uses_molecular_cutoffs) then |
445 |
|
|
call gather(qcom,qcom_Row,plan_row3d) |
446 |
|
|
call gather(qcom,qcom_Col,plan_col3d) |
447 |
|
|
endif |
448 |
|
|
|
449 |
chuckv |
900 |
if (FF_UsesDirectionalAtoms() .and. SIM_uses_directional_atoms) then |
450 |
mmeineke |
377 |
call gather(u_l,u_l_Row,plan_row3d) |
451 |
|
|
call gather(u_l,u_l_Col,plan_col3d) |
452 |
|
|
|
453 |
|
|
call gather(A,A_Row,plan_row_rotation) |
454 |
|
|
call gather(A,A_Col,plan_col_rotation) |
455 |
|
|
endif |
456 |
|
|
|
457 |
|
|
#endif |
458 |
gezelter |
1138 |
|
459 |
|
|
!! Begin force loop timing: |
460 |
chuckv |
694 |
#ifdef PROFILE |
461 |
|
|
call cpu_time(forceTimeInitial) |
462 |
|
|
nloops = nloops + 1 |
463 |
|
|
#endif |
464 |
gezelter |
1138 |
|
465 |
chuckv |
900 |
if (FF_RequiresPrepairCalc() .and. SIM_requires_prepair_calc) then |
466 |
mmeineke |
377 |
!! See if we need to update neighbor lists |
467 |
gezelter |
1138 |
if (SIM_uses_molecular_cutoffs) then |
468 |
|
|
call checkNeighborList(nlocal, qcom, listSkin, update_nlist) |
469 |
|
|
else |
470 |
|
|
call checkNeighborList(nlocal, q, listSkin, update_nlist) |
471 |
|
|
endif |
472 |
mmeineke |
377 |
!! if_mpi_gather_stuff_for_prepair |
473 |
|
|
!! do_prepair_loop_if_needed |
474 |
|
|
!! if_mpi_scatter_stuff_from_prepair |
475 |
|
|
!! if_mpi_gather_stuff_from_prepair_to_main_loop |
476 |
gezelter |
1138 |
|
477 |
|
|
!--------------------PREFORCE LOOP----------->>>>>>>>>>>>>>>>>>>>>>>>>>> |
478 |
chuckv |
648 |
#ifdef IS_MPI |
479 |
|
|
|
480 |
gezelter |
1138 |
if (update_nlist) then |
481 |
chuckv |
648 |
|
482 |
gezelter |
1138 |
!! save current configuration, construct neighbor list, |
483 |
|
|
!! and calculate forces |
484 |
|
|
if (SIM_uses_molecular_cutoffs) then |
485 |
|
|
call saveNeighborList(nlocal, qcom) |
486 |
|
|
else |
487 |
|
|
call saveNeighborList(nlocal, q) |
488 |
|
|
endif |
489 |
|
|
|
490 |
|
|
neighborListSize = size(list) |
491 |
|
|
nlist = 0 |
492 |
|
|
|
493 |
|
|
do i = 1, nrow |
494 |
|
|
point(i) = nlist + 1 |
495 |
chuckv |
648 |
|
496 |
gezelter |
1138 |
prepair_inner: do j = 1, ncol |
497 |
chuckv |
648 |
|
498 |
gezelter |
1138 |
if (skipThisPair(i,j)) cycle prepair_inner |
499 |
chuckv |
648 |
|
500 |
gezelter |
1138 |
if (SIM_uses_molecular_cutoffs) then |
501 |
|
|
call get_interatomic_vector(qcom_Row(:,i), qcom_Col(:,j), & |
502 |
|
|
dc, rcijsq) |
503 |
|
|
else |
504 |
|
|
call get_interatomic_vector(q_Row(:,i), q_Col(:,j), & |
505 |
|
|
dc, rcijsq) |
506 |
chuckv |
648 |
endif |
507 |
|
|
|
508 |
gezelter |
1138 |
if (rcijsq < rlistsq) then |
509 |
|
|
|
510 |
|
|
nlist = nlist + 1 |
511 |
|
|
|
512 |
|
|
if (nlist > neighborListSize) then |
513 |
|
|
call expandNeighborList(nlocal, listerror) |
514 |
|
|
if (listerror /= 0) then |
515 |
|
|
error = -1 |
516 |
|
|
write(DEFAULT_ERROR,*) "ERROR: nlist > list size and max allocations exceeded." |
517 |
|
|
return |
518 |
|
|
end if |
519 |
|
|
neighborListSize = size(list) |
520 |
|
|
endif |
521 |
|
|
|
522 |
|
|
list(nlist) = j |
523 |
|
|
|
524 |
|
|
if (SIM_uses_molecular_cutoffs) then |
525 |
|
|
! since the simulation distances were in molecular COMs: |
526 |
|
|
call get_interatomic_vector(q_Row(:,i), q_Col(:,j), & |
527 |
|
|
d, rijsq) |
528 |
|
|
else |
529 |
|
|
d(1:3) = dc(1:3) |
530 |
|
|
rijsq = rcijsq |
531 |
|
|
endif |
532 |
|
|
|
533 |
|
|
call do_prepair(i, j, rijsq, d, rcijsq, dc, & |
534 |
|
|
do_pot, do_stress, u_l, A, f, t, pot_local) |
535 |
|
|
endif |
536 |
|
|
enddo prepair_inner |
537 |
|
|
enddo |
538 |
|
|
|
539 |
|
|
point(nrow + 1) = nlist + 1 |
540 |
|
|
|
541 |
|
|
else !! (of update_check) |
542 |
|
|
|
543 |
|
|
! use the list to find the neighbors |
544 |
|
|
do i = 1, nrow |
545 |
|
|
JBEG = POINT(i) |
546 |
|
|
JEND = POINT(i+1) - 1 |
547 |
|
|
! check thiat molecule i has neighbors |
548 |
|
|
if (jbeg .le. jend) then |
549 |
|
|
|
550 |
|
|
do jnab = jbeg, jend |
551 |
|
|
j = list(jnab) |
552 |
|
|
|
553 |
|
|
call get_interatomic_vector(q_Row(:,i), q_Col(:,j), & |
554 |
|
|
d, rijsq) |
555 |
|
|
if (SIM_uses_molecular_cutoffs) then |
556 |
|
|
call get_interatomic_vector(qcom_Row(:,i),qcom_Col(:,j),& |
557 |
|
|
dc, rcijsq) |
558 |
|
|
else |
559 |
|
|
dc(1:3) = d(1:3) |
560 |
|
|
rcijsq = rijsq |
561 |
|
|
endif |
562 |
|
|
|
563 |
|
|
call do_prepair(i, j, rijsq, d, rcijsq, dc, & |
564 |
|
|
do_pot, do_stress, u_l, A, f, t, pot_local) |
565 |
|
|
|
566 |
|
|
enddo |
567 |
chuckv |
648 |
endif |
568 |
gezelter |
1138 |
enddo |
569 |
|
|
endif |
570 |
chuckv |
648 |
|
571 |
|
|
#else |
572 |
|
|
|
573 |
gezelter |
1138 |
if (update_nlist) then |
574 |
chuckv |
648 |
|
575 |
gezelter |
1138 |
! save current configuration, contruct neighbor list, |
576 |
|
|
! and calculate forces |
577 |
|
|
call saveNeighborList(natoms, q) |
578 |
|
|
|
579 |
|
|
neighborListSize = size(list) |
580 |
|
|
|
581 |
|
|
nlist = 0 |
582 |
|
|
|
583 |
|
|
do i = 1, natoms-1 |
584 |
|
|
point(i) = nlist + 1 |
585 |
chuckv |
648 |
|
586 |
gezelter |
1138 |
prepair_inner: do j = i+1, natoms |
587 |
|
|
|
588 |
|
|
if (skipThisPair(i,j)) cycle prepair_inner |
589 |
|
|
|
590 |
|
|
if (SIM_uses_molecular_cutoffs) then |
591 |
|
|
call get_interatomic_vector(qcom(:,i), qcom(:,j), & |
592 |
|
|
dc, rcijsq) |
593 |
|
|
else |
594 |
|
|
call get_interatomic_vector(q(:,i), q(:,j), dc, rcijsq) |
595 |
chuckv |
648 |
endif |
596 |
|
|
|
597 |
gezelter |
1138 |
if (rcijsq < rlistsq) then |
598 |
|
|
|
599 |
|
|
nlist = nlist + 1 |
600 |
|
|
|
601 |
|
|
if (nlist > neighborListSize) then |
602 |
|
|
call expandNeighborList(natoms, listerror) |
603 |
|
|
if (listerror /= 0) then |
604 |
|
|
error = -1 |
605 |
|
|
write(DEFAULT_ERROR,*) "ERROR: nlist > list size and max allocations exceeded." |
606 |
|
|
return |
607 |
|
|
end if |
608 |
|
|
neighborListSize = size(list) |
609 |
|
|
endif |
610 |
|
|
|
611 |
|
|
list(nlist) = j |
612 |
|
|
|
613 |
|
|
|
614 |
|
|
if (SIM_uses_molecular_cutoffs) then |
615 |
|
|
! since the simulation distances were in molecular COMs: |
616 |
|
|
call get_interatomic_vector(q(:,i), q(:,j), & |
617 |
|
|
d, rijsq) |
618 |
|
|
else |
619 |
|
|
dc(1:3) = d(1:3) |
620 |
|
|
rcijsq = rijsq |
621 |
|
|
endif |
622 |
|
|
|
623 |
|
|
call do_prepair(i, j, rijsq, d, rcijsq, dc, & |
624 |
|
|
do_pot, do_stress, u_l, A, f, t, pot) |
625 |
|
|
|
626 |
|
|
endif |
627 |
|
|
enddo prepair_inner |
628 |
|
|
enddo |
629 |
|
|
|
630 |
|
|
point(natoms) = nlist + 1 |
631 |
|
|
|
632 |
|
|
else !! (update) |
633 |
|
|
|
634 |
|
|
! use the list to find the neighbors |
635 |
|
|
do i = 1, natoms-1 |
636 |
|
|
JBEG = POINT(i) |
637 |
|
|
JEND = POINT(i+1) - 1 |
638 |
|
|
! check thiat molecule i has neighbors |
639 |
|
|
if (jbeg .le. jend) then |
640 |
chuckv |
648 |
|
641 |
gezelter |
1138 |
do jnab = jbeg, jend |
642 |
|
|
j = list(jnab) |
643 |
|
|
|
644 |
|
|
call get_interatomic_vector(q(:,i), q(:,j), d, rijsq) |
645 |
|
|
if (SIM_uses_molecular_cutoffs) then |
646 |
|
|
call get_interatomic_vector(qcom(:,i), qcom(:,j), & |
647 |
|
|
dc, rcijsq) |
648 |
|
|
else |
649 |
|
|
dc(1:3) = d(1:3) |
650 |
|
|
rcijsq = rijsq |
651 |
|
|
endif |
652 |
|
|
|
653 |
|
|
call do_prepair(i, j, rijsq, d, rcijsq, dc, & |
654 |
|
|
do_pot, do_stress, u_l, A, f, t, pot) |
655 |
|
|
|
656 |
|
|
enddo |
657 |
chuckv |
648 |
endif |
658 |
gezelter |
1138 |
enddo |
659 |
|
|
endif |
660 |
chuckv |
648 |
#endif |
661 |
gezelter |
1138 |
!! Do rest of preforce calculations |
662 |
|
|
!! do necessary preforce calculations |
663 |
|
|
call do_preforce(nlocal,pot) |
664 |
|
|
! we have already updated the neighbor list set it to false... |
665 |
|
|
update_nlist = .false. |
666 |
mmeineke |
377 |
else |
667 |
chuckv |
648 |
!! See if we need to update neighbor lists for non pre-pair |
668 |
mmeineke |
626 |
call checkNeighborList(nlocal, q, listSkin, update_nlist) |
669 |
mmeineke |
377 |
endif |
670 |
gezelter |
1138 |
|
671 |
|
|
!---------------------------------MAIN Pair LOOP->>>>>>>>>>>>> |
672 |
|
|
|
673 |
mmeineke |
377 |
#ifdef IS_MPI |
674 |
|
|
|
675 |
|
|
if (update_nlist) then |
676 |
|
|
!! save current configuration, construct neighbor list, |
677 |
|
|
!! and calculate forces |
678 |
mmeineke |
459 |
call saveNeighborList(nlocal, q) |
679 |
mmeineke |
377 |
|
680 |
|
|
neighborListSize = size(list) |
681 |
|
|
nlist = 0 |
682 |
|
|
|
683 |
|
|
do i = 1, nrow |
684 |
gezelter |
1138 |
|
685 |
mmeineke |
377 |
point(i) = nlist + 1 |
686 |
|
|
|
687 |
|
|
inner: do j = 1, ncol |
688 |
|
|
|
689 |
|
|
if (skipThisPair(i,j)) cycle inner |
690 |
|
|
|
691 |
gezelter |
1138 |
if (SIM_uses_molecular_cutoffs) then |
692 |
|
|
call get_interatomic_vector(qcom_Row(:,i), qcom_Col(:,j), & |
693 |
|
|
dc, rcijsq) |
694 |
|
|
else |
695 |
|
|
call get_interatomic_vector(q_Row(:,i), q_Col(:,j), & |
696 |
|
|
dc, rcijsq) |
697 |
|
|
endif |
698 |
mmeineke |
377 |
|
699 |
gezelter |
1138 |
if (rcijsq < rlistsq) then |
700 |
mmeineke |
377 |
|
701 |
|
|
nlist = nlist + 1 |
702 |
|
|
|
703 |
|
|
if (nlist > neighborListSize) then |
704 |
|
|
call expandNeighborList(nlocal, listerror) |
705 |
|
|
if (listerror /= 0) then |
706 |
|
|
error = -1 |
707 |
|
|
write(DEFAULT_ERROR,*) "ERROR: nlist > list size and max allocations exceeded." |
708 |
|
|
return |
709 |
|
|
end if |
710 |
|
|
neighborListSize = size(list) |
711 |
|
|
endif |
712 |
|
|
|
713 |
|
|
list(nlist) = j |
714 |
mmeineke |
626 |
|
715 |
gezelter |
1138 |
if (SIM_uses_molecular_cutoffs) then |
716 |
|
|
call get_interatomic_vector(q_Row(:,i), q_Col(:,j), & |
717 |
|
|
d, rijsq) |
718 |
|
|
else |
719 |
|
|
d(1:3) = dc(1:3) |
720 |
|
|
rijsq = rcijsq |
721 |
|
|
endif |
722 |
|
|
|
723 |
|
|
call do_pair(i, j, rijsq, d, rcijsq, dc, mfact, & |
724 |
|
|
do_pot, do_stress, u_l, A, f, t, pot_local) |
725 |
|
|
|
726 |
mmeineke |
377 |
endif |
727 |
|
|
enddo inner |
728 |
|
|
enddo |
729 |
gezelter |
1138 |
|
730 |
mmeineke |
377 |
point(nrow + 1) = nlist + 1 |
731 |
|
|
|
732 |
|
|
else !! (of update_check) |
733 |
gezelter |
1138 |
|
734 |
mmeineke |
377 |
! use the list to find the neighbors |
735 |
|
|
do i = 1, nrow |
736 |
|
|
JBEG = POINT(i) |
737 |
|
|
JEND = POINT(i+1) - 1 |
738 |
|
|
! check thiat molecule i has neighbors |
739 |
|
|
if (jbeg .le. jend) then |
740 |
|
|
|
741 |
|
|
do jnab = jbeg, jend |
742 |
|
|
j = list(jnab) |
743 |
gezelter |
1138 |
|
744 |
mmeineke |
377 |
call get_interatomic_vector(q_Row(:,i), q_Col(:,j), d, rijsq) |
745 |
gezelter |
1138 |
if (SIM_uses_molecular_cutoffs) then |
746 |
|
|
call get_interatomic_vector(qcom_Row(:,i), qcom_Col(:,j), & |
747 |
|
|
dc, rcijsq) |
748 |
|
|
else |
749 |
|
|
dc(1:3) = d(1:3) |
750 |
|
|
rcijsq = rijsq |
751 |
|
|
endif |
752 |
|
|
|
753 |
|
|
call do_pair(i, j, rijsq, d, rcijsq, dc, mfact, & |
754 |
|
|
do_pot, do_stress, u_l, A, f, t, pot_local) |
755 |
|
|
|
756 |
mmeineke |
377 |
enddo |
757 |
|
|
endif |
758 |
|
|
enddo |
759 |
|
|
endif |
760 |
|
|
|
761 |
|
|
#else |
762 |
|
|
|
763 |
|
|
if (update_nlist) then |
764 |
gezelter |
1138 |
|
765 |
mmeineke |
377 |
! save current configuration, contruct neighbor list, |
766 |
|
|
! and calculate forces |
767 |
mmeineke |
459 |
call saveNeighborList(natoms, q) |
768 |
mmeineke |
377 |
|
769 |
|
|
neighborListSize = size(list) |
770 |
gezelter |
1138 |
|
771 |
mmeineke |
377 |
nlist = 0 |
772 |
|
|
|
773 |
|
|
do i = 1, natoms-1 |
774 |
|
|
point(i) = nlist + 1 |
775 |
|
|
|
776 |
|
|
inner: do j = i+1, natoms |
777 |
|
|
|
778 |
chuckv |
388 |
if (skipThisPair(i,j)) cycle inner |
779 |
gezelter |
1138 |
|
780 |
|
|
if (SIM_uses_molecular_cutoffs) then |
781 |
|
|
call get_interatomic_vector(qcom(:,i), qcom(:,j), & |
782 |
|
|
dc, rcijsq) |
783 |
|
|
else |
784 |
|
|
call get_interatomic_vector(q(:,i), q(:,j), & |
785 |
|
|
dc, rcijsq) |
786 |
|
|
endif |
787 |
|
|
|
788 |
|
|
if (rcijsq < rlistsq) then |
789 |
mmeineke |
377 |
|
790 |
|
|
nlist = nlist + 1 |
791 |
gezelter |
1138 |
|
792 |
mmeineke |
377 |
if (nlist > neighborListSize) then |
793 |
|
|
call expandNeighborList(natoms, listerror) |
794 |
|
|
if (listerror /= 0) then |
795 |
|
|
error = -1 |
796 |
|
|
write(DEFAULT_ERROR,*) "ERROR: nlist > list size and max allocations exceeded." |
797 |
|
|
return |
798 |
|
|
end if |
799 |
|
|
neighborListSize = size(list) |
800 |
|
|
endif |
801 |
|
|
|
802 |
|
|
list(nlist) = j |
803 |
|
|
|
804 |
gezelter |
1138 |
if (SIM_uses_molecular_cutoffs) then |
805 |
|
|
call get_interatomic_vector(q(:,i), q(:,j), & |
806 |
|
|
d, rijsq) |
807 |
|
|
else |
808 |
|
|
d(1:3) = dc(1:3) |
809 |
|
|
rijsq = rcijsq |
810 |
|
|
endif |
811 |
mmeineke |
626 |
|
812 |
gezelter |
1138 |
call do_pair(i, j, rijsq, d, rcijsq, dc, mfact, & |
813 |
|
|
do_pot, do_stress, u_l, A, f, t, pot) |
814 |
|
|
|
815 |
mmeineke |
377 |
endif |
816 |
|
|
enddo inner |
817 |
|
|
enddo |
818 |
|
|
|
819 |
|
|
point(natoms) = nlist + 1 |
820 |
|
|
|
821 |
|
|
else !! (update) |
822 |
|
|
|
823 |
|
|
! use the list to find the neighbors |
824 |
|
|
do i = 1, natoms-1 |
825 |
|
|
JBEG = POINT(i) |
826 |
|
|
JEND = POINT(i+1) - 1 |
827 |
|
|
! check thiat molecule i has neighbors |
828 |
|
|
if (jbeg .le. jend) then |
829 |
|
|
|
830 |
|
|
do jnab = jbeg, jend |
831 |
|
|
j = list(jnab) |
832 |
|
|
|
833 |
gezelter |
1138 |
|
834 |
mmeineke |
377 |
call get_interatomic_vector(q(:,i), q(:,j), d, rijsq) |
835 |
gezelter |
1138 |
if (SIM_uses_molecular_cutoffs) then |
836 |
|
|
call get_interatomic_vector(qcom(:,i), qcom(:,j), & |
837 |
|
|
dc, rcijsq) |
838 |
|
|
else |
839 |
|
|
dc(1:3) = d(1:3) |
840 |
|
|
rcijsq = rijsq |
841 |
|
|
endif |
842 |
|
|
|
843 |
|
|
call do_pair(i, j, rijsq, d, rcijsq, dc, mfact, & |
844 |
|
|
do_pot, do_stress, u_l, A, f, t, pot) |
845 |
|
|
|
846 |
mmeineke |
377 |
enddo |
847 |
|
|
endif |
848 |
|
|
enddo |
849 |
|
|
endif |
850 |
|
|
|
851 |
|
|
#endif |
852 |
|
|
|
853 |
|
|
! phew, done with main loop. |
854 |
gezelter |
1138 |
|
855 |
|
|
!! Do timing |
856 |
chuckv |
694 |
#ifdef PROFILE |
857 |
|
|
call cpu_time(forceTimeFinal) |
858 |
|
|
forceTime = forceTime + forceTimeFinal - forceTimeInitial |
859 |
|
|
#endif |
860 |
gezelter |
1138 |
|
861 |
|
|
|
862 |
mmeineke |
377 |
#ifdef IS_MPI |
863 |
|
|
!!distribute forces |
864 |
gezelter |
1138 |
|
865 |
chuckv |
438 |
f_temp = 0.0_dp |
866 |
|
|
call scatter(f_Row,f_temp,plan_row3d) |
867 |
|
|
do i = 1,nlocal |
868 |
|
|
f(1:3,i) = f(1:3,i) + f_temp(1:3,i) |
869 |
|
|
end do |
870 |
gezelter |
1138 |
|
871 |
chuckv |
438 |
f_temp = 0.0_dp |
872 |
mmeineke |
377 |
call scatter(f_Col,f_temp,plan_col3d) |
873 |
|
|
do i = 1,nlocal |
874 |
|
|
f(1:3,i) = f(1:3,i) + f_temp(1:3,i) |
875 |
|
|
end do |
876 |
|
|
|
877 |
chuckv |
900 |
if (FF_UsesDirectionalAtoms() .and. SIM_uses_directional_atoms) then |
878 |
chuckv |
438 |
t_temp = 0.0_dp |
879 |
|
|
call scatter(t_Row,t_temp,plan_row3d) |
880 |
|
|
do i = 1,nlocal |
881 |
|
|
t(1:3,i) = t(1:3,i) + t_temp(1:3,i) |
882 |
|
|
end do |
883 |
|
|
t_temp = 0.0_dp |
884 |
mmeineke |
377 |
call scatter(t_Col,t_temp,plan_col3d) |
885 |
|
|
|
886 |
|
|
do i = 1,nlocal |
887 |
|
|
t(1:3,i) = t(1:3,i) + t_temp(1:3,i) |
888 |
|
|
end do |
889 |
|
|
endif |
890 |
|
|
|
891 |
|
|
if (do_pot) then |
892 |
|
|
! scatter/gather pot_row into the members of my column |
893 |
|
|
call scatter(pot_Row, pot_Temp, plan_row) |
894 |
gezelter |
1138 |
|
895 |
mmeineke |
377 |
! scatter/gather pot_local into all other procs |
896 |
|
|
! add resultant to get total pot |
897 |
|
|
do i = 1, nlocal |
898 |
|
|
pot_local = pot_local + pot_Temp(i) |
899 |
|
|
enddo |
900 |
chuckv |
439 |
|
901 |
|
|
pot_Temp = 0.0_DP |
902 |
gezelter |
1138 |
|
903 |
mmeineke |
377 |
call scatter(pot_Col, pot_Temp, plan_col) |
904 |
|
|
do i = 1, nlocal |
905 |
|
|
pot_local = pot_local + pot_Temp(i) |
906 |
|
|
enddo |
907 |
chuckv |
439 |
|
908 |
gezelter |
1138 |
endif |
909 |
mmeineke |
377 |
#endif |
910 |
gezelter |
1138 |
|
911 |
chuckv |
900 |
if (FF_RequiresPostpairCalc() .and. SIM_requires_postpair_calc) then |
912 |
mmeineke |
377 |
|
913 |
chuckv |
900 |
if (FF_uses_RF .and. SIM_uses_RF) then |
914 |
gezelter |
1138 |
|
915 |
mmeineke |
377 |
#ifdef IS_MPI |
916 |
|
|
call scatter(rf_Row,rf,plan_row3d) |
917 |
|
|
call scatter(rf_Col,rf_Temp,plan_col3d) |
918 |
|
|
do i = 1,nlocal |
919 |
|
|
rf(1:3,i) = rf(1:3,i) + rf_Temp(1:3,i) |
920 |
|
|
end do |
921 |
|
|
#endif |
922 |
|
|
|
923 |
chuckv |
898 |
do i = 1, nLocal |
924 |
gezelter |
1138 |
|
925 |
mmeineke |
377 |
rfpot = 0.0_DP |
926 |
|
|
#ifdef IS_MPI |
927 |
|
|
me_i = atid_row(i) |
928 |
|
|
#else |
929 |
|
|
me_i = atid(i) |
930 |
|
|
#endif |
931 |
gezelter |
1138 |
|
932 |
chuckv |
900 |
if (PropertyMap(me_i)%is_DP) then |
933 |
gezelter |
1138 |
|
934 |
chuckv |
900 |
mu_i = PropertyMap(me_i)%dipole_moment |
935 |
gezelter |
1138 |
|
936 |
mmeineke |
377 |
!! The reaction field needs to include a self contribution |
937 |
|
|
!! to the field: |
938 |
chuckv |
900 |
call accumulate_self_rf(i, mu_i, u_l) |
939 |
mmeineke |
377 |
!! Get the reaction field contribution to the |
940 |
|
|
!! potential and torques: |
941 |
|
|
call reaction_field_final(i, mu_i, u_l, rfpot, t, do_pot) |
942 |
|
|
#ifdef IS_MPI |
943 |
|
|
pot_local = pot_local + rfpot |
944 |
|
|
#else |
945 |
|
|
pot = pot + rfpot |
946 |
|
|
|
947 |
|
|
#endif |
948 |
|
|
endif |
949 |
|
|
enddo |
950 |
|
|
endif |
951 |
|
|
endif |
952 |
gezelter |
1138 |
|
953 |
|
|
|
954 |
mmeineke |
377 |
#ifdef IS_MPI |
955 |
gezelter |
1138 |
|
956 |
mmeineke |
377 |
if (do_pot) then |
957 |
chuckv |
441 |
pot = pot + pot_local |
958 |
mmeineke |
377 |
!! we assume the c code will do the allreduce to get the total potential |
959 |
|
|
!! we could do it right here if we needed to... |
960 |
|
|
endif |
961 |
gezelter |
1138 |
|
962 |
mmeineke |
377 |
if (do_stress) then |
963 |
gezelter |
1138 |
call mpi_allreduce(tau_Temp, tau, 9,mpi_double_precision,mpi_sum, & |
964 |
mmeineke |
377 |
mpi_comm_world,mpi_err) |
965 |
chuckv |
470 |
call mpi_allreduce(virial_Temp, virial,1,mpi_double_precision,mpi_sum, & |
966 |
mmeineke |
377 |
mpi_comm_world,mpi_err) |
967 |
|
|
endif |
968 |
gezelter |
1138 |
|
969 |
mmeineke |
377 |
#else |
970 |
gezelter |
1138 |
|
971 |
mmeineke |
377 |
if (do_stress) then |
972 |
|
|
tau = tau_Temp |
973 |
|
|
virial = virial_Temp |
974 |
|
|
endif |
975 |
mmeineke |
887 |
|
976 |
mmeineke |
377 |
#endif |
977 |
mmeineke |
887 |
|
978 |
|
|
|
979 |
mmeineke |
377 |
end subroutine do_force_loop |
980 |
gezelter |
1138 |
|
981 |
|
|
subroutine do_pair(i, j, rijsq, d, rcijsq, dc, mfact, do_pot, do_stress, & |
982 |
|
|
u_l, A, f, t, pot) |
983 |
mmeineke |
377 |
|
984 |
|
|
real( kind = dp ) :: pot |
985 |
gezelter |
1138 |
real( kind = dp ), dimension(nLocal) :: mfact |
986 |
chuckv |
898 |
real( kind = dp ), dimension(3,nLocal) :: u_l |
987 |
gezelter |
1138 |
real( kind = dp ), dimension(9,nLocal) :: A |
988 |
|
|
real( kind = dp ), dimension(3,nLocal) :: f |
989 |
|
|
real( kind = dp ), dimension(3,nLocal) :: t |
990 |
mmeineke |
377 |
|
991 |
|
|
logical, intent(inout) :: do_pot, do_stress |
992 |
|
|
integer, intent(in) :: i, j |
993 |
gezelter |
1138 |
real ( kind = dp ), intent(inout) :: rijsq, rcijsq |
994 |
|
|
real ( kind = dp ) :: r, rc |
995 |
|
|
real ( kind = dp ), intent(inout) :: d(3), dc(3) |
996 |
mmeineke |
377 |
integer :: me_i, me_j |
997 |
gezelter |
946 |
|
998 |
mmeineke |
377 |
r = sqrt(rijsq) |
999 |
gezelter |
1138 |
if (SIM_uses_molecular_cutoffs) then |
1000 |
|
|
rc = sqrt(rcijsq) |
1001 |
|
|
else |
1002 |
|
|
rc = r |
1003 |
|
|
endif |
1004 |
mmeineke |
377 |
|
1005 |
gezelter |
1138 |
|
1006 |
mmeineke |
377 |
#ifdef IS_MPI |
1007 |
gezelter |
490 |
if (tagRow(i) .eq. tagColumn(j)) then |
1008 |
|
|
write(0,*) 'do_pair is doing', i , j, tagRow(i), tagColumn(j) |
1009 |
|
|
endif |
1010 |
mmeineke |
377 |
me_i = atid_row(i) |
1011 |
|
|
me_j = atid_col(j) |
1012 |
|
|
#else |
1013 |
|
|
me_i = atid(i) |
1014 |
|
|
me_j = atid(j) |
1015 |
|
|
#endif |
1016 |
chuckv |
894 |
|
1017 |
chuckv |
900 |
if (FF_uses_LJ .and. SIM_uses_LJ) then |
1018 |
gezelter |
946 |
|
1019 |
|
|
if ( PropertyMap(me_i)%is_LJ .and. PropertyMap(me_j)%is_LJ ) then |
1020 |
|
|
call do_lj_pair(i, j, d, r, rijsq, pot, f, do_pot, do_stress) |
1021 |
|
|
endif |
1022 |
|
|
|
1023 |
mmeineke |
377 |
endif |
1024 |
gezelter |
946 |
|
1025 |
|
|
if (FF_uses_charges .and. SIM_uses_charges) then |
1026 |
|
|
|
1027 |
|
|
if (PropertyMap(me_i)%is_Charge .and. PropertyMap(me_j)%is_Charge) then |
1028 |
gezelter |
1138 |
call do_charge_pair(i, j, d, r, rijsq, dc, rc, rcijsq, mfact, & |
1029 |
|
|
pot, f, do_pot, do_stress, SIM_uses_molecular_cutoffs) |
1030 |
gezelter |
946 |
endif |
1031 |
|
|
|
1032 |
|
|
endif |
1033 |
|
|
|
1034 |
chuckv |
900 |
if (FF_uses_dipoles .and. SIM_uses_dipoles) then |
1035 |
mmeineke |
377 |
|
1036 |
chuckv |
900 |
if ( PropertyMap(me_i)%is_DP .and. PropertyMap(me_j)%is_DP) then |
1037 |
gezelter |
462 |
call do_dipole_pair(i, j, d, r, rijsq, pot, u_l, f, t, & |
1038 |
mmeineke |
377 |
do_pot, do_stress) |
1039 |
chuckv |
900 |
if (FF_uses_RF .and. SIM_uses_RF) then |
1040 |
mmeineke |
377 |
call accumulate_rf(i, j, r, u_l) |
1041 |
|
|
call rf_correct_forces(i, j, d, r, u_l, f, do_stress) |
1042 |
gezelter |
946 |
endif |
1043 |
mmeineke |
377 |
endif |
1044 |
gezelter |
946 |
|
1045 |
mmeineke |
377 |
endif |
1046 |
|
|
|
1047 |
chuckv |
900 |
if (FF_uses_Sticky .and. SIM_uses_sticky) then |
1048 |
mmeineke |
377 |
|
1049 |
chuckv |
900 |
if ( PropertyMap(me_i)%is_Sticky .and. PropertyMap(me_j)%is_Sticky) then |
1050 |
mmeineke |
377 |
call do_sticky_pair(i, j, d, r, rijsq, A, pot, f, t, & |
1051 |
|
|
do_pot, do_stress) |
1052 |
|
|
endif |
1053 |
gezelter |
946 |
|
1054 |
mmeineke |
377 |
endif |
1055 |
|
|
|
1056 |
|
|
|
1057 |
chuckv |
900 |
if (FF_uses_GB .and. SIM_uses_GB) then |
1058 |
mmeineke |
377 |
|
1059 |
chuckv |
900 |
if ( PropertyMap(me_i)%is_GB .and. PropertyMap(me_j)%is_GB) then |
1060 |
mmeineke |
377 |
call do_gb_pair(i, j, d, r, rijsq, u_l, pot, f, t, & |
1061 |
|
|
do_pot, do_stress) |
1062 |
|
|
endif |
1063 |
chuckv |
894 |
|
1064 |
mmeineke |
377 |
endif |
1065 |
gezelter |
946 |
|
1066 |
|
|
if (FF_uses_EAM .and. SIM_uses_EAM) then |
1067 |
|
|
|
1068 |
|
|
if ( PropertyMap(me_i)%is_EAM .and. PropertyMap(me_j)%is_EAM) then |
1069 |
|
|
call do_eam_pair(i, j, d, r, rijsq, pot, f, do_pot, do_stress) |
1070 |
|
|
endif |
1071 |
|
|
|
1072 |
|
|
endif |
1073 |
mmeineke |
597 |
|
1074 |
mmeineke |
377 |
end subroutine do_pair |
1075 |
|
|
|
1076 |
|
|
|
1077 |
chuckv |
631 |
|
1078 |
gezelter |
1138 |
subroutine do_prepair(i, j, rijsq, d, rcijsq, dc, & |
1079 |
|
|
do_pot, do_stress, u_l, A, f, t, pot) |
1080 |
chuckv |
631 |
real( kind = dp ) :: pot |
1081 |
chuckv |
898 |
real( kind = dp ), dimension(3,nLocal) :: u_l |
1082 |
|
|
real (kind=dp), dimension(9,nLocal) :: A |
1083 |
|
|
real (kind=dp), dimension(3,nLocal) :: f |
1084 |
|
|
real (kind=dp), dimension(3,nLocal) :: t |
1085 |
chuckv |
631 |
|
1086 |
|
|
logical, intent(inout) :: do_pot, do_stress |
1087 |
|
|
integer, intent(in) :: i, j |
1088 |
gezelter |
1138 |
real ( kind = dp ), intent(inout) :: rijsq, rcijsq |
1089 |
|
|
real ( kind = dp ) :: r, rc |
1090 |
|
|
real ( kind = dp ), intent(inout) :: d(3), dc(3) |
1091 |
chuckv |
631 |
|
1092 |
|
|
logical :: is_EAM_i, is_EAM_j |
1093 |
|
|
|
1094 |
|
|
integer :: me_i, me_j |
1095 |
|
|
|
1096 |
gezelter |
1138 |
|
1097 |
|
|
r = sqrt(rijsq) |
1098 |
|
|
if (SIM_uses_molecular_cutoffs) then |
1099 |
|
|
rc = sqrt(rcijsq) |
1100 |
|
|
else |
1101 |
|
|
rc = r |
1102 |
|
|
endif |
1103 |
chuckv |
631 |
|
1104 |
chuckv |
669 |
|
1105 |
chuckv |
631 |
#ifdef IS_MPI |
1106 |
|
|
if (tagRow(i) .eq. tagColumn(j)) then |
1107 |
|
|
write(0,*) 'do_pair is doing', i , j, tagRow(i), tagColumn(j) |
1108 |
|
|
endif |
1109 |
|
|
|
1110 |
|
|
me_i = atid_row(i) |
1111 |
|
|
me_j = atid_col(j) |
1112 |
|
|
|
1113 |
|
|
#else |
1114 |
|
|
|
1115 |
|
|
me_i = atid(i) |
1116 |
|
|
me_j = atid(j) |
1117 |
|
|
|
1118 |
|
|
#endif |
1119 |
chuckv |
673 |
|
1120 |
chuckv |
900 |
if (FF_uses_EAM .and. SIM_uses_EAM) then |
1121 |
|
|
|
1122 |
|
|
if (PropertyMap(me_i)%is_EAM .and. PropertyMap(me_j)%is_EAM) & |
1123 |
chuckv |
648 |
call calc_EAM_prepair_rho(i, j, d, r, rijsq ) |
1124 |
chuckv |
900 |
|
1125 |
chuckv |
631 |
endif |
1126 |
chuckv |
900 |
|
1127 |
chuckv |
673 |
end subroutine do_prepair |
1128 |
chuckv |
648 |
|
1129 |
|
|
|
1130 |
|
|
|
1131 |
chuckv |
673 |
|
1132 |
gezelter |
1138 |
subroutine do_preforce(nlocal,pot) |
1133 |
|
|
integer :: nlocal |
1134 |
|
|
real( kind = dp ) :: pot |
1135 |
|
|
|
1136 |
|
|
if (FF_uses_EAM .and. SIM_uses_EAM) then |
1137 |
|
|
call calc_EAM_preforce_Frho(nlocal,pot) |
1138 |
|
|
endif |
1139 |
|
|
|
1140 |
|
|
|
1141 |
|
|
end subroutine do_preforce |
1142 |
|
|
|
1143 |
|
|
|
1144 |
|
|
subroutine get_interatomic_vector(q_i, q_j, d, r_sq) |
1145 |
|
|
|
1146 |
|
|
real (kind = dp), dimension(3) :: q_i |
1147 |
|
|
real (kind = dp), dimension(3) :: q_j |
1148 |
|
|
real ( kind = dp ), intent(out) :: r_sq |
1149 |
|
|
real( kind = dp ) :: d(3), scaled(3) |
1150 |
|
|
integer i |
1151 |
|
|
|
1152 |
|
|
d(1:3) = q_j(1:3) - q_i(1:3) |
1153 |
|
|
|
1154 |
|
|
! Wrap back into periodic box if necessary |
1155 |
|
|
if ( SIM_uses_PBC ) then |
1156 |
mmeineke |
377 |
|
1157 |
gezelter |
1138 |
if( .not.boxIsOrthorhombic ) then |
1158 |
|
|
! calc the scaled coordinates. |
1159 |
|
|
|
1160 |
|
|
scaled = matmul(HmatInv, d) |
1161 |
|
|
|
1162 |
|
|
! wrap the scaled coordinates |
1163 |
|
|
|
1164 |
|
|
scaled = scaled - anint(scaled) |
1165 |
|
|
|
1166 |
|
|
|
1167 |
|
|
! calc the wrapped real coordinates from the wrapped scaled |
1168 |
|
|
! coordinates |
1169 |
|
|
|
1170 |
|
|
d = matmul(Hmat,scaled) |
1171 |
|
|
|
1172 |
|
|
else |
1173 |
|
|
! calc the scaled coordinates. |
1174 |
|
|
|
1175 |
|
|
do i = 1, 3 |
1176 |
|
|
scaled(i) = d(i) * HmatInv(i,i) |
1177 |
|
|
|
1178 |
|
|
! wrap the scaled coordinates |
1179 |
|
|
|
1180 |
|
|
scaled(i) = scaled(i) - anint(scaled(i)) |
1181 |
|
|
|
1182 |
|
|
! calc the wrapped real coordinates from the wrapped scaled |
1183 |
|
|
! coordinates |
1184 |
|
|
|
1185 |
|
|
d(i) = scaled(i)*Hmat(i,i) |
1186 |
|
|
enddo |
1187 |
|
|
endif |
1188 |
|
|
|
1189 |
|
|
endif |
1190 |
|
|
|
1191 |
|
|
r_sq = dot_product(d,d) |
1192 |
|
|
|
1193 |
|
|
end subroutine get_interatomic_vector |
1194 |
mmeineke |
377 |
|
1195 |
gezelter |
1138 |
subroutine zero_work_arrays() |
1196 |
|
|
|
1197 |
|
|
#ifdef IS_MPI |
1198 |
|
|
|
1199 |
|
|
q_Row = 0.0_dp |
1200 |
|
|
q_Col = 0.0_dp |
1201 |
mmeineke |
377 |
|
1202 |
gezelter |
1138 |
qcom_Row = 0.0_dp |
1203 |
|
|
qcom_Col = 0.0_dp |
1204 |
|
|
|
1205 |
|
|
u_l_Row = 0.0_dp |
1206 |
|
|
u_l_Col = 0.0_dp |
1207 |
|
|
|
1208 |
|
|
A_Row = 0.0_dp |
1209 |
|
|
A_Col = 0.0_dp |
1210 |
|
|
|
1211 |
|
|
f_Row = 0.0_dp |
1212 |
|
|
f_Col = 0.0_dp |
1213 |
|
|
f_Temp = 0.0_dp |
1214 |
|
|
|
1215 |
|
|
t_Row = 0.0_dp |
1216 |
|
|
t_Col = 0.0_dp |
1217 |
|
|
t_Temp = 0.0_dp |
1218 |
|
|
|
1219 |
|
|
pot_Row = 0.0_dp |
1220 |
|
|
pot_Col = 0.0_dp |
1221 |
|
|
pot_Temp = 0.0_dp |
1222 |
|
|
|
1223 |
|
|
rf_Row = 0.0_dp |
1224 |
|
|
rf_Col = 0.0_dp |
1225 |
|
|
rf_Temp = 0.0_dp |
1226 |
|
|
|
1227 |
mmeineke |
377 |
#endif |
1228 |
chuckv |
673 |
|
1229 |
gezelter |
1138 |
if (FF_uses_EAM .and. SIM_uses_EAM) then |
1230 |
|
|
call clean_EAM() |
1231 |
|
|
endif |
1232 |
|
|
|
1233 |
|
|
rf = 0.0_dp |
1234 |
|
|
tau_Temp = 0.0_dp |
1235 |
|
|
virial_Temp = 0.0_dp |
1236 |
|
|
end subroutine zero_work_arrays |
1237 |
|
|
|
1238 |
|
|
function skipThisPair(atom1, atom2) result(skip_it) |
1239 |
|
|
integer, intent(in) :: atom1 |
1240 |
|
|
integer, intent(in), optional :: atom2 |
1241 |
|
|
logical :: skip_it |
1242 |
|
|
integer :: unique_id_1, unique_id_2 |
1243 |
|
|
integer :: me_i,me_j |
1244 |
|
|
integer :: i |
1245 |
|
|
|
1246 |
|
|
skip_it = .false. |
1247 |
|
|
|
1248 |
|
|
!! there are a number of reasons to skip a pair or a particle |
1249 |
|
|
!! mostly we do this to exclude atoms who are involved in short |
1250 |
|
|
!! range interactions (bonds, bends, torsions), but we also need |
1251 |
|
|
!! to exclude some overcounted interactions that result from |
1252 |
|
|
!! the parallel decomposition |
1253 |
|
|
|
1254 |
mmeineke |
377 |
#ifdef IS_MPI |
1255 |
gezelter |
1138 |
!! in MPI, we have to look up the unique IDs for each atom |
1256 |
|
|
unique_id_1 = tagRow(atom1) |
1257 |
mmeineke |
377 |
#else |
1258 |
gezelter |
1138 |
!! in the normal loop, the atom numbers are unique |
1259 |
|
|
unique_id_1 = atom1 |
1260 |
mmeineke |
377 |
#endif |
1261 |
gezelter |
1138 |
|
1262 |
|
|
!! We were called with only one atom, so just check the global exclude |
1263 |
|
|
!! list for this atom |
1264 |
|
|
if (.not. present(atom2)) then |
1265 |
|
|
do i = 1, nExcludes_global |
1266 |
|
|
if (excludesGlobal(i) == unique_id_1) then |
1267 |
|
|
skip_it = .true. |
1268 |
|
|
return |
1269 |
|
|
end if |
1270 |
|
|
end do |
1271 |
|
|
return |
1272 |
|
|
end if |
1273 |
|
|
|
1274 |
mmeineke |
377 |
#ifdef IS_MPI |
1275 |
gezelter |
1138 |
unique_id_2 = tagColumn(atom2) |
1276 |
mmeineke |
377 |
#else |
1277 |
gezelter |
1138 |
unique_id_2 = atom2 |
1278 |
mmeineke |
377 |
#endif |
1279 |
gezelter |
1138 |
|
1280 |
mmeineke |
377 |
#ifdef IS_MPI |
1281 |
gezelter |
1138 |
!! this situation should only arise in MPI simulations |
1282 |
|
|
if (unique_id_1 == unique_id_2) then |
1283 |
|
|
skip_it = .true. |
1284 |
|
|
return |
1285 |
|
|
end if |
1286 |
|
|
|
1287 |
|
|
!! this prevents us from doing the pair on multiple processors |
1288 |
|
|
if (unique_id_1 < unique_id_2) then |
1289 |
|
|
if (mod(unique_id_1 + unique_id_2,2) == 0) then |
1290 |
|
|
skip_it = .true. |
1291 |
|
|
return |
1292 |
|
|
endif |
1293 |
|
|
else |
1294 |
|
|
if (mod(unique_id_1 + unique_id_2,2) == 1) then |
1295 |
|
|
skip_it = .true. |
1296 |
|
|
return |
1297 |
|
|
endif |
1298 |
|
|
endif |
1299 |
mmeineke |
377 |
#endif |
1300 |
gezelter |
1138 |
|
1301 |
|
|
!! the rest of these situations can happen in all simulations: |
1302 |
|
|
do i = 1, nExcludes_global |
1303 |
|
|
if ((excludesGlobal(i) == unique_id_1) .or. & |
1304 |
|
|
(excludesGlobal(i) == unique_id_2)) then |
1305 |
|
|
skip_it = .true. |
1306 |
|
|
return |
1307 |
|
|
endif |
1308 |
|
|
enddo |
1309 |
|
|
|
1310 |
|
|
do i = 1, nExcludes_local |
1311 |
|
|
if (excludesLocal(1,i) == unique_id_1) then |
1312 |
|
|
if (excludesLocal(2,i) == unique_id_2) then |
1313 |
|
|
skip_it = .true. |
1314 |
|
|
return |
1315 |
|
|
endif |
1316 |
|
|
else |
1317 |
|
|
if (excludesLocal(1,i) == unique_id_2) then |
1318 |
|
|
if (excludesLocal(2,i) == unique_id_1) then |
1319 |
|
|
skip_it = .true. |
1320 |
|
|
return |
1321 |
|
|
endif |
1322 |
|
|
endif |
1323 |
|
|
endif |
1324 |
|
|
end do |
1325 |
|
|
|
1326 |
|
|
return |
1327 |
|
|
end function skipThisPair |
1328 |
chuckv |
441 |
|
1329 |
gezelter |
1138 |
function FF_UsesDirectionalAtoms() result(doesit) |
1330 |
|
|
logical :: doesit |
1331 |
|
|
doesit = FF_uses_dipoles .or. FF_uses_sticky .or. & |
1332 |
|
|
FF_uses_GB .or. FF_uses_RF |
1333 |
|
|
end function FF_UsesDirectionalAtoms |
1334 |
|
|
|
1335 |
|
|
function FF_RequiresPrepairCalc() result(doesit) |
1336 |
|
|
logical :: doesit |
1337 |
|
|
doesit = FF_uses_EAM |
1338 |
|
|
end function FF_RequiresPrepairCalc |
1339 |
|
|
|
1340 |
|
|
function FF_RequiresPostpairCalc() result(doesit) |
1341 |
|
|
logical :: doesit |
1342 |
|
|
doesit = FF_uses_RF |
1343 |
|
|
end function FF_RequiresPostpairCalc |
1344 |
|
|
|
1345 |
chuckv |
883 |
#ifdef PROFILE |
1346 |
gezelter |
1138 |
function getforcetime() result(totalforcetime) |
1347 |
|
|
real(kind=dp) :: totalforcetime |
1348 |
|
|
totalforcetime = forcetime |
1349 |
|
|
end function getforcetime |
1350 |
chuckv |
883 |
#endif |
1351 |
gezelter |
1138 |
|
1352 |
|
|
!! This cleans componets of force arrays belonging only to fortran |
1353 |
|
|
|
1354 |
mmeineke |
377 |
end module do_Forces |