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!! @author Charles F. Vardeman II |
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!! @author Matthew Meineke |
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!! @version $Id: doForces.F90,v 1.57 2005-10-12 21:00:45 gezelter Exp $, $Date: 2005-10-12 21:00:45 $, $Name: not supported by cvs2svn $, $Revision: 1.57 $ |
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!! @version $Id: doForces.F90,v 1.62 2005-10-23 21:08:02 chrisfen Exp $, $Date: 2005-10-23 21:08:02 $, $Name: not supported by cvs2svn $, $Revision: 1.62 $ |
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module doForces |
58 |
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use lj |
59 |
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use sticky |
60 |
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use electrostatic_module |
61 |
< |
use reaction_field_module |
62 |
< |
use gb_pair |
61 |
> |
use gayberne |
62 |
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use shapes |
63 |
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use vector_class |
64 |
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use eam |
680 |
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|
681 |
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haveSaneForceField = .true. |
682 |
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|
684 |
– |
!! check to make sure the reaction field setting makes sense |
685 |
– |
|
686 |
– |
if (FF_uses_Dipoles) then |
687 |
– |
if (electrostaticSummationMethod == REACTION_FIELD) then |
688 |
– |
dielect = getDielect() |
689 |
– |
call initialize_rf(dielect) |
690 |
– |
endif |
691 |
– |
else |
692 |
– |
if (electrostaticSummationMethod == REACTION_FIELD) then |
693 |
– |
write(default_error,*) 'Using Reaction Field with no dipoles? Huh?' |
694 |
– |
thisStat = -1 |
695 |
– |
haveSaneForceField = .false. |
696 |
– |
return |
697 |
– |
endif |
698 |
– |
endif |
699 |
– |
|
683 |
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if (FF_uses_EAM) then |
684 |
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call init_EAM_FF(my_status) |
685 |
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if (my_status /= 0) then |
690 |
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end if |
691 |
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endif |
692 |
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|
710 |
– |
if (FF_uses_GayBerne) then |
711 |
– |
call check_gb_pair_FF(my_status) |
712 |
– |
if (my_status .ne. 0) then |
713 |
– |
thisStat = -1 |
714 |
– |
haveSaneForceField = .false. |
715 |
– |
return |
716 |
– |
endif |
717 |
– |
endif |
718 |
– |
|
693 |
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if (.not. haveNeighborList) then |
694 |
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!! Create neighbor lists |
695 |
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call expandNeighborList(nLocal, my_status) |
754 |
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integer :: propPack_i, propPack_j |
755 |
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integer :: loopStart, loopEnd, loop |
756 |
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integer :: iHash |
757 |
+ |
integer :: ig |
758 |
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|
759 |
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|
760 |
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!! initialize local variables |
949 |
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else |
950 |
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#ifdef IS_MPI |
951 |
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call do_pair(atom1, atom2, ratmsq, d_atm, sw, & |
952 |
< |
do_pot, & |
953 |
< |
eFrame, A, f, t, pot_local, vpair, fpair) |
952 |
> |
do_pot, eFrame, A, f, t, pot_local, vpair, & |
953 |
> |
fpair, d_grp, rgrp) |
954 |
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#else |
955 |
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call do_pair(atom1, atom2, ratmsq, d_atm, sw, & |
956 |
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do_pot, & |
957 |
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eFrame, A, f, t, pot, vpair, fpair) |
956 |
> |
do_pot, eFrame, A, f, t, pot, vpair, fpair, & |
957 |
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d_grp, rgrp) |
958 |
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#endif |
959 |
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|
960 |
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vij = vij + vpair |
1085 |
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endif |
1086 |
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#endif |
1087 |
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1088 |
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if (FF_RequiresPostpairCalc() .and. SIM_requires_postpair_calc) then |
1088 |
> |
if (SIM_requires_postpair_calc) then |
1089 |
> |
do i = 1, nlocal |
1090 |
> |
|
1091 |
> |
! we loop only over the local atoms, so we don't need row and column |
1092 |
> |
! lookups for the types |
1093 |
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|
1094 |
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if (electrostaticSummationMethod == REACTION_FIELD) then |
1095 |
< |
|
1094 |
> |
me_i = atid(i) |
1095 |
> |
|
1096 |
> |
! is the atom electrostatic? See if it would have an |
1097 |
> |
! electrostatic interaction with itself |
1098 |
> |
iHash = InteractionHash(me_i,me_i) |
1099 |
> |
|
1100 |
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if ( iand(iHash, ELECTROSTATIC_PAIR).ne.0 ) then |
1101 |
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#ifdef IS_MPI |
1102 |
< |
call scatter(rf_Row,rf,plan_atom_row_3d) |
1103 |
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call scatter(rf_Col,rf_Temp,plan_atom_col_3d) |
1120 |
< |
do i = 1,nlocal |
1121 |
< |
rf(1:3,i) = rf(1:3,i) + rf_Temp(1:3,i) |
1122 |
< |
end do |
1123 |
< |
#endif |
1124 |
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|
1125 |
< |
do i = 1, nLocal |
1126 |
< |
|
1127 |
< |
rfpot = 0.0_DP |
1128 |
< |
#ifdef IS_MPI |
1129 |
< |
me_i = atid_row(i) |
1102 |
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call rf_self_self(i, eFrame, pot_local(ELECTROSTATIC_POT), & |
1103 |
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t, do_pot) |
1104 |
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#else |
1105 |
< |
me_i = atid(i) |
1105 |
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call rf_self_self(i, eFrame, pot(ELECTROSTATIC_POT), & |
1106 |
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t, do_pot) |
1107 |
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#endif |
1108 |
< |
iHash = InteractionHash(me_i,me_j) |
1109 |
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|
1135 |
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if ( iand(iHash, ELECTROSTATIC_PAIR).ne.0 ) then |
1136 |
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|
1137 |
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mu_i = getDipoleMoment(me_i) |
1138 |
< |
|
1139 |
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!! The reaction field needs to include a self contribution |
1140 |
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!! to the field: |
1141 |
< |
call accumulate_self_rf(i, mu_i, eFrame) |
1142 |
< |
!! Get the reaction field contribution to the |
1143 |
< |
!! potential and torques: |
1144 |
< |
call reaction_field_final(i, mu_i, eFrame, rfpot, t, do_pot) |
1145 |
< |
#ifdef IS_MPI |
1146 |
< |
pot_local(ELECTROSTATIC_POT) = pot_local(ELECTROSTATIC_POT) + rfpot |
1147 |
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#else |
1148 |
< |
pot(ELECTROSTATIC_POT) = pot(ELECTROSTATIC_POT) + rfpot |
1149 |
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|
1150 |
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#endif |
1151 |
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endif |
1152 |
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enddo |
1153 |
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endif |
1108 |
> |
endif |
1109 |
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enddo |
1110 |
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endif |
1111 |
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|
1156 |
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|
1111 |
> |
|
1112 |
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#ifdef IS_MPI |
1113 |
< |
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1113 |
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|
1114 |
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if (do_pot) then |
1115 |
< |
pot(1:LR_POT_TYPES) = pot(1:LR_POT_TYPES) & |
1116 |
< |
+ pot_local(1:LR_POT_TYPES) |
1162 |
< |
!! we assume the c code will do the allreduce to get the total potential |
1163 |
< |
!! we could do it right here if we needed to... |
1115 |
> |
call mpi_allreduce(pot_local, pot, LR_POT_TYPES,mpi_double_precision,mpi_sum, & |
1116 |
> |
mpi_comm_world,mpi_err) |
1117 |
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endif |
1118 |
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1118 |
> |
|
1119 |
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if (do_stress) then |
1120 |
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call mpi_allreduce(tau_Temp, tau, 9,mpi_double_precision,mpi_sum, & |
1121 |
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mpi_comm_world,mpi_err) |
1122 |
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call mpi_allreduce(virial_Temp, virial,1,mpi_double_precision,mpi_sum, & |
1123 |
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mpi_comm_world,mpi_err) |
1124 |
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endif |
1125 |
< |
|
1125 |
> |
|
1126 |
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#else |
1127 |
< |
|
1127 |
> |
|
1128 |
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if (do_stress) then |
1129 |
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tau = tau_Temp |
1130 |
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virial = virial_Temp |
1131 |
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endif |
1132 |
< |
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1132 |
> |
|
1133 |
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#endif |
1134 |
< |
|
1134 |
> |
|
1135 |
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end subroutine do_force_loop |
1136 |
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|
1137 |
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subroutine do_pair(i, j, rijsq, d, sw, do_pot, & |
1138 |
< |
eFrame, A, f, t, pot, vpair, fpair) |
1138 |
> |
eFrame, A, f, t, pot, vpair, fpair, d_grp, r_grp) |
1139 |
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|
1140 |
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real( kind = dp ) :: vpair, sw |
1141 |
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real( kind = dp ), dimension(LR_POT_TYPES) :: pot |
1149 |
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logical, intent(inout) :: do_pot |
1150 |
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integer, intent(in) :: i, j |
1151 |
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real ( kind = dp ), intent(inout) :: rijsq |
1152 |
< |
real ( kind = dp ) :: r |
1152 |
> |
real ( kind = dp ), intent(inout) :: r_grp |
1153 |
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real ( kind = dp ), intent(inout) :: d(3) |
1154 |
+ |
real ( kind = dp ), intent(inout) :: d_grp(3) |
1155 |
+ |
real ( kind = dp ) :: r |
1156 |
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integer :: me_i, me_j |
1157 |
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|
1158 |
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integer :: iHash |
1179 |
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if ( iand(iHash, ELECTROSTATIC_PAIR).ne.0 ) then |
1180 |
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call doElectrostaticPair(i, j, d, r, rijsq, sw, vpair, fpair, & |
1181 |
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pot(ELECTROSTATIC_POT), eFrame, f, t, do_pot) |
1227 |
– |
|
1228 |
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if (electrostaticSummationMethod == REACTION_FIELD) then |
1229 |
– |
|
1230 |
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! CHECK ME (RF needs to know about all electrostatic types) |
1231 |
– |
call accumulate_rf(i, j, r, eFrame, sw) |
1232 |
– |
call rf_correct_forces(i, j, d, r, eFrame, sw, f, fpair) |
1233 |
– |
endif |
1234 |
– |
|
1182 |
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endif |
1183 |
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|
1184 |
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if ( iand(iHash, STICKY_PAIR).ne.0 ) then |
1197 |
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endif |
1198 |
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|
1199 |
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if ( iand(iHash, GAYBERNE_LJ).ne.0 ) then |
1200 |
< |
! call do_gblj_pair(i, j, d, r, rijsq, sw, vpair, fpair, & |
1201 |
< |
! pot(VDW_POT), A, f, t, do_pot) |
1200 |
> |
call do_gb_lj_pair(i, j, d, r, rijsq, sw, vpair, fpair, & |
1201 |
> |
pot(VDW_POT), A, f, t, do_pot) |
1202 |
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endif |
1203 |
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|
1204 |
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if ( iand(iHash, EAM_PAIR).ne.0 ) then |
1452 |
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logical :: doesit |
1453 |
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doesit = FF_uses_EAM |
1454 |
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end function FF_RequiresPrepairCalc |
1508 |
– |
|
1509 |
– |
function FF_RequiresPostpairCalc() result(doesit) |
1510 |
– |
logical :: doesit |
1511 |
– |
if (electrostaticSummationMethod == REACTION_FIELD) doesit = .true. |
1512 |
– |
end function FF_RequiresPostpairCalc |
1455 |
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|
1456 |
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#ifdef PROFILE |
1457 |
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function getforcetime() result(totalforcetime) |