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root/group/trunk/OOPSE/libmdtools/calc_dipole_dipole.F90
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Comparing trunk/OOPSE/libmdtools/calc_dipole_dipole.F90 (file contents):
Revision 469 by mmeineke, Mon Apr 7 20:06:31 2003 UTC vs.
Revision 619 by mmeineke, Tue Jul 15 22:22:41 2003 UTC

# Line 80 | Line 80 | contains
80      ul2(3) = u_l(3,atom2)
81   #endif
82  
83    if( atom1 .eq. 2 )then
84       write (0,*) 'ul =', ul1(1), ul1(2), ul1(3)
85    endif
83  
87    if( atom2 .eq. 2 )then
88       write (0,*) 'ul =', ul2(1), ul2(2), ul2(3)
89    endif
90
91
84      call getElementProperty(atypes, me1, "dipole_moment", mu1)
85      call getElementProperty(atypes, me2, "dipole_moment", mu2)
86  
87 +
88      if (rij.le.rrf) then
89 +
90        
91 +      
92         if (rij.lt.rt) then
93            taper = 1.0d0
94            dtdr = 0.0d0
# Line 149 | Line 144 | contains
144        
145  
146   #ifdef IS_MPI
147 <       f_Row(1,atom1) = f_Row(1,atom1) - dudx
148 <       f_Row(2,atom1) = f_Row(2,atom1) - dudy
149 <       f_Row(3,atom1) = f_Row(3,atom1) - dudz
147 >       f_Row(1,atom1) = f_Row(1,atom1) + dudx
148 >       f_Row(2,atom1) = f_Row(2,atom1) + dudy
149 >       f_Row(3,atom1) = f_Row(3,atom1) + dudz
150  
151 <       f_Col(1,atom2) = f_Col(1,atom2) + dudx
152 <       f_Col(2,atom2) = f_Col(2,atom2) + dudy
153 <       f_Col(3,atom2) = f_Col(3,atom2) + dudz
151 >       f_Col(1,atom2) = f_Col(1,atom2) - dudx
152 >       f_Col(2,atom2) = f_Col(2,atom2) - dudy
153 >       f_Col(3,atom2) = f_Col(3,atom2) - dudz
154        
155         t_Row(1,atom1) = t_Row(1,atom1) - ul1(2)*dudu1z + ul1(3)*dudu1y
156         t_Row(2,atom1) = t_Row(2,atom1) - ul1(3)*dudu1x + ul1(1)*dudu1z
# Line 165 | Line 160 | contains
160         t_Col(2,atom2) = t_Col(2,atom2) - ul2(3)*dudu2x + ul2(1)*dudu2z
161         t_Col(3,atom2) = t_Col(3,atom2) - ul2(1)*dudu2y + ul2(2)*dudu2x
162   #else
163 <       f(1,atom1) = f(1,atom1) - dudx
164 <       f(2,atom1) = f(2,atom1) - dudy
165 <       f(3,atom1) = f(3,atom1) - dudz
163 >       f(1,atom1) = f(1,atom1) + dudx
164 >       f(2,atom1) = f(2,atom1) + dudy
165 >       f(3,atom1) = f(3,atom1) + dudz
166        
167 <       f(1,atom2) = f(1,atom2) + dudx
168 <       f(2,atom2) = f(2,atom2) + dudy
169 <       f(3,atom2) = f(3,atom2) + dudz
167 >       f(1,atom2) = f(1,atom2) - dudx
168 >       f(2,atom2) = f(2,atom2) - dudy
169 >       f(3,atom2) = f(3,atom2) - dudz
170        
171         t(1,atom1) = t(1,atom1) - ul1(2)*dudu1z + ul1(3)*dudu1y
172         t(2,atom1) = t(2,atom1) - ul1(3)*dudu1x + ul1(1)*dudu1z
# Line 183 | Line 178 | contains
178   #endif
179        
180         if (do_stress) then          
181 <          tau_Temp(1) = tau_Temp(1) + dudx * d(1)
182 <          tau_Temp(2) = tau_Temp(2) + dudx * d(2)
183 <          tau_Temp(3) = tau_Temp(3) + dudx * d(3)
184 <          tau_Temp(4) = tau_Temp(4) + dudy * d(1)
185 <          tau_Temp(5) = tau_Temp(5) + dudy * d(2)
186 <          tau_Temp(6) = tau_Temp(6) + dudy * d(3)
187 <          tau_Temp(7) = tau_Temp(7) + dudz * d(1)
188 <          tau_Temp(8) = tau_Temp(8) + dudz * d(2)
189 <          tau_Temp(9) = tau_Temp(9) + dudz * d(3)
190 <          virial_Temp = virial_Temp + (tau_Temp(1) + tau_Temp(5) + tau_Temp(9))
181 >
182 >          if (molMembershipList(atom1) .ne. molMembershipList(atom2)) then
183 >
184 >             ! because the d vector is the rj - ri vector, and
185 >             ! because dudx, dudy, dudz are the (positive) force on
186 >             ! atom i (negative on atom j) we need a negative sign here:
187 >
188 >             tau_Temp(1) = tau_Temp(1) - d(1) * dudx
189 >             tau_Temp(2) = tau_Temp(2) - d(1) * dudy
190 >             tau_Temp(3) = tau_Temp(3) - d(1) * dudz
191 >             tau_Temp(4) = tau_Temp(4) - d(2) * dudx
192 >             tau_Temp(5) = tau_Temp(5) - d(2) * dudy
193 >             tau_Temp(6) = tau_Temp(6) - d(2) * dudz
194 >             tau_Temp(7) = tau_Temp(7) - d(3) * dudx
195 >             tau_Temp(8) = tau_Temp(8) - d(3) * dudy
196 >             tau_Temp(9) = tau_Temp(9) - d(3) * dudz
197 >
198 >             virial_Temp = virial_Temp + &
199 >                  (tau_Temp(1) + tau_Temp(5) + tau_Temp(9))
200 >
201 >          endif          
202         endif
203        
204      endif

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