47 |
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use vector_class |
48 |
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use simulation |
49 |
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use status |
50 |
+ |
use interpolation |
51 |
|
#ifdef IS_MPI |
52 |
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use mpiSimulation |
53 |
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#endif |
55 |
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|
56 |
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PRIVATE |
57 |
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|
58 |
+ |
|
59 |
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#define __FORTRAN90 |
60 |
+ |
#include "UseTheForce/DarkSide/fInteractionMap.h" |
61 |
|
#include "UseTheForce/DarkSide/fElectrostaticSummationMethod.h" |
62 |
+ |
#include "UseTheForce/DarkSide/fElectrostaticScreeningMethod.h" |
63 |
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|
64 |
+ |
|
65 |
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!! these prefactors convert the multipole interactions into kcal / mol |
66 |
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!! all were computed assuming distances are measured in angstroms |
67 |
|
!! Charge-Charge, assuming charges are measured in electrons |
68 |
< |
real(kind=dp), parameter :: pre11 = 332.0637778_dp |
68 |
> |
real(kind=dp), parameter :: pre11 = 332.0637778d0 |
69 |
|
!! Charge-Dipole, assuming charges are measured in electrons, and |
70 |
|
!! dipoles are measured in debyes |
71 |
< |
real(kind=dp), parameter :: pre12 = 69.13373_dp |
71 |
> |
real(kind=dp), parameter :: pre12 = 69.13373d0 |
72 |
|
!! Dipole-Dipole, assuming dipoles are measured in debyes |
73 |
< |
real(kind=dp), parameter :: pre22 = 14.39325_dp |
73 |
> |
real(kind=dp), parameter :: pre22 = 14.39325d0 |
74 |
|
!! Charge-Quadrupole, assuming charges are measured in electrons, and |
75 |
|
!! quadrupoles are measured in 10^-26 esu cm^2 |
76 |
|
!! This unit is also known affectionately as an esu centi-barn. |
77 |
< |
real(kind=dp), parameter :: pre14 = 69.13373_dp |
77 |
> |
real(kind=dp), parameter :: pre14 = 69.13373d0 |
78 |
|
|
79 |
< |
!! variables to handle different summation methods for long-range electrostatics: |
79 |
> |
real(kind=dp), parameter :: zero = 0.0d0 |
80 |
> |
|
81 |
> |
!! number of points for electrostatic splines |
82 |
> |
integer, parameter :: np = 100 |
83 |
> |
|
84 |
> |
!! variables to handle different summation methods for long-range |
85 |
> |
!! electrostatics: |
86 |
|
integer, save :: summationMethod = NONE |
87 |
+ |
integer, save :: screeningMethod = UNDAMPED |
88 |
|
logical, save :: summationMethodChecked = .false. |
89 |
|
real(kind=DP), save :: defaultCutoff = 0.0_DP |
90 |
+ |
real(kind=DP), save :: defaultCutoff2 = 0.0_DP |
91 |
|
logical, save :: haveDefaultCutoff = .false. |
92 |
|
real(kind=DP), save :: dampingAlpha = 0.0_DP |
93 |
+ |
real(kind=DP), save :: alpha2 = 0.0_DP |
94 |
|
logical, save :: haveDampingAlpha = .false. |
95 |
< |
real(kind=DP), save :: dielectric = 0.0_DP |
95 |
> |
real(kind=DP), save :: dielectric = 1.0_DP |
96 |
|
logical, save :: haveDielectric = .false. |
83 |
– |
real(kind=DP), save :: constERFC = 0.0_DP |
97 |
|
real(kind=DP), save :: constEXP = 0.0_DP |
98 |
< |
logical, save :: haveDWAconstants = .false. |
99 |
< |
real(kind=dp), save :: rcuti = 0.0_dp |
100 |
< |
real(kind=dp), save :: rcuti2 = 0.0_dp |
101 |
< |
real(kind=dp), save :: rcuti3 = 0.0_dp |
102 |
< |
real(kind=dp), save :: rcuti4 = 0.0_dp |
98 |
> |
real(kind=dp), save :: rcuti = 0.0_DP |
99 |
> |
real(kind=dp), save :: rcuti2 = 0.0_DP |
100 |
> |
real(kind=dp), save :: rcuti3 = 0.0_DP |
101 |
> |
real(kind=dp), save :: rcuti4 = 0.0_DP |
102 |
> |
real(kind=dp), save :: alphaPi = 0.0_DP |
103 |
> |
real(kind=dp), save :: invRootPi = 0.0_DP |
104 |
> |
real(kind=dp), save :: rrf = 1.0_DP |
105 |
> |
real(kind=dp), save :: rt = 1.0_DP |
106 |
> |
real(kind=dp), save :: rrfsq = 1.0_DP |
107 |
> |
real(kind=dp), save :: preRF = 0.0_DP |
108 |
> |
real(kind=dp), save :: preRF2 = 0.0_DP |
109 |
> |
real(kind=dp), save :: f0 = 1.0_DP |
110 |
> |
real(kind=dp), save :: f1 = 1.0_DP |
111 |
> |
real(kind=dp), save :: f2 = 0.0_DP |
112 |
> |
real(kind=dp), save :: f3 = 0.0_DP |
113 |
> |
real(kind=dp), save :: f4 = 0.0_DP |
114 |
> |
real(kind=dp), save :: f0c = 1.0_DP |
115 |
> |
real(kind=dp), save :: f1c = 1.0_DP |
116 |
> |
real(kind=dp), save :: f2c = 0.0_DP |
117 |
> |
real(kind=dp), save :: f3c = 0.0_DP |
118 |
> |
real(kind=dp), save :: f4c = 0.0_DP |
119 |
> |
real(kind=dp), save :: df0 = 0.0_DP |
120 |
> |
type(cubicSpline), save :: f0spline |
121 |
> |
logical, save :: haveElectroSpline = .false. |
122 |
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|
123 |
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|
124 |
+ |
#if defined(__IFC) || defined(__PGI) |
125 |
+ |
! error function for ifc version > 7. |
126 |
+ |
double precision, external :: derfc |
127 |
+ |
#endif |
128 |
+ |
|
129 |
|
public :: setElectrostaticSummationMethod |
130 |
+ |
public :: setScreeningMethod |
131 |
|
public :: setElectrostaticCutoffRadius |
132 |
< |
public :: setDampedWolfAlpha |
132 |
> |
public :: setDampingAlpha |
133 |
|
public :: setReactionFieldDielectric |
134 |
+ |
public :: buildElectroSpline |
135 |
|
public :: newElectrostaticType |
136 |
|
public :: setCharge |
137 |
|
public :: setDipoleMoment |
140 |
|
public :: doElectrostaticPair |
141 |
|
public :: getCharge |
142 |
|
public :: getDipoleMoment |
104 |
– |
public :: pre22 |
143 |
|
public :: destroyElectrostaticTypes |
144 |
+ |
public :: self_self |
145 |
+ |
public :: rf_self_excludes |
146 |
|
|
147 |
+ |
|
148 |
|
type :: Electrostatic |
149 |
|
integer :: c_ident |
150 |
|
logical :: is_Charge = .false. |
160 |
|
|
161 |
|
type(Electrostatic), dimension(:), allocatable :: ElectrostaticMap |
162 |
|
|
163 |
+ |
logical, save :: hasElectrostaticMap |
164 |
+ |
|
165 |
|
contains |
166 |
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|
167 |
|
subroutine setElectrostaticSummationMethod(the_ESM) |
172 |
|
endif |
173 |
|
|
174 |
|
summationMethod = the_ESM |
175 |
+ |
|
176 |
|
end subroutine setElectrostaticSummationMethod |
177 |
|
|
178 |
< |
subroutine setElectrostaticCutoffRadius(thisRcut) |
178 |
> |
subroutine setScreeningMethod(the_SM) |
179 |
> |
integer, intent(in) :: the_SM |
180 |
> |
screeningMethod = the_SM |
181 |
> |
end subroutine setScreeningMethod |
182 |
> |
|
183 |
> |
subroutine setElectrostaticCutoffRadius(thisRcut, thisRsw) |
184 |
|
real(kind=dp), intent(in) :: thisRcut |
185 |
+ |
real(kind=dp), intent(in) :: thisRsw |
186 |
|
defaultCutoff = thisRcut |
187 |
+ |
defaultCutoff2 = defaultCutoff*defaultCutoff |
188 |
+ |
rrf = defaultCutoff |
189 |
+ |
rt = thisRsw |
190 |
|
haveDefaultCutoff = .true. |
191 |
|
end subroutine setElectrostaticCutoffRadius |
192 |
|
|
193 |
< |
subroutine setDampedWolfAlpha(thisAlpha) |
193 |
> |
subroutine setDampingAlpha(thisAlpha) |
194 |
|
real(kind=dp), intent(in) :: thisAlpha |
195 |
|
dampingAlpha = thisAlpha |
196 |
+ |
alpha2 = dampingAlpha*dampingAlpha |
197 |
|
haveDampingAlpha = .true. |
198 |
< |
end subroutine setDampedWolfAlpha |
198 |
> |
end subroutine setDampingAlpha |
199 |
|
|
200 |
|
subroutine setReactionFieldDielectric(thisDielectric) |
201 |
|
real(kind=dp), intent(in) :: thisDielectric |
203 |
|
haveDielectric = .true. |
204 |
|
end subroutine setReactionFieldDielectric |
205 |
|
|
206 |
+ |
subroutine buildElectroSpline() |
207 |
+ |
real( kind = dp ), dimension(np) :: xvals, yvals |
208 |
+ |
real( kind = dp ) :: dx, rmin, rval |
209 |
+ |
integer :: i |
210 |
+ |
|
211 |
+ |
rmin = 0.0d0 |
212 |
+ |
|
213 |
+ |
dx = (defaultCutoff-rmin) / dble(np-1) |
214 |
+ |
|
215 |
+ |
do i = 1, np |
216 |
+ |
rval = rmin + dble(i-1)*dx |
217 |
+ |
xvals(i) = rval |
218 |
+ |
yvals(i) = derfc(dampingAlpha*rval) |
219 |
+ |
enddo |
220 |
+ |
|
221 |
+ |
call newSpline(f0spline, xvals, yvals, .true.) |
222 |
+ |
|
223 |
+ |
haveElectroSpline = .true. |
224 |
+ |
end subroutine buildElectroSpline |
225 |
+ |
|
226 |
|
subroutine newElectrostaticType(c_ident, is_Charge, is_Dipole, & |
227 |
|
is_SplitDipole, is_Quadrupole, is_Tap, status) |
228 |
|
|
250 |
|
return |
251 |
|
end if |
252 |
|
|
253 |
< |
if (.not. allocated(ElectrostaticMap)) then |
180 |
< |
allocate(ElectrostaticMap(nAtypes)) |
181 |
< |
endif |
253 |
> |
allocate(ElectrostaticMap(nAtypes)) |
254 |
|
|
255 |
|
end if |
256 |
|
|
268 |
|
ElectrostaticMap(myATID)%is_Quadrupole = is_Quadrupole |
269 |
|
ElectrostaticMap(myATID)%is_Tap = is_Tap |
270 |
|
|
271 |
+ |
hasElectrostaticMap = .true. |
272 |
+ |
|
273 |
|
end subroutine newElectrostaticType |
274 |
|
|
275 |
|
subroutine setCharge(c_ident, charge, status) |
281 |
|
status = 0 |
282 |
|
myATID = getFirstMatchingElement(atypes, "c_ident", c_ident) |
283 |
|
|
284 |
< |
if (.not.allocated(ElectrostaticMap)) then |
284 |
> |
if (.not.hasElectrostaticMap) then |
285 |
|
call handleError("electrostatic", "no ElectrostaticMap was present before first call of setCharge!") |
286 |
|
status = -1 |
287 |
|
return |
311 |
|
status = 0 |
312 |
|
myATID = getFirstMatchingElement(atypes, "c_ident", c_ident) |
313 |
|
|
314 |
< |
if (.not.allocated(ElectrostaticMap)) then |
314 |
> |
if (.not.hasElectrostaticMap) then |
315 |
|
call handleError("electrostatic", "no ElectrostaticMap was present before first call of setDipoleMoment!") |
316 |
|
status = -1 |
317 |
|
return |
341 |
|
status = 0 |
342 |
|
myATID = getFirstMatchingElement(atypes, "c_ident", c_ident) |
343 |
|
|
344 |
< |
if (.not.allocated(ElectrostaticMap)) then |
344 |
> |
if (.not.hasElectrostaticMap) then |
345 |
|
call handleError("electrostatic", "no ElectrostaticMap was present before first call of setSplitDipoleDistance!") |
346 |
|
status = -1 |
347 |
|
return |
371 |
|
status = 0 |
372 |
|
myATID = getFirstMatchingElement(atypes, "c_ident", c_ident) |
373 |
|
|
374 |
< |
if (.not.allocated(ElectrostaticMap)) then |
374 |
> |
if (.not.hasElectrostaticMap) then |
375 |
|
call handleError("electrostatic", "no ElectrostaticMap was present before first call of setQuadrupoleMoments!") |
376 |
|
status = -1 |
377 |
|
return |
402 |
|
integer :: localError |
403 |
|
real(kind=dp) :: c |
404 |
|
|
405 |
< |
if (.not.allocated(ElectrostaticMap)) then |
405 |
> |
if (.not.hasElectrostaticMap) then |
406 |
|
call handleError("electrostatic", "no ElectrostaticMap was present before first call of getCharge!") |
407 |
|
return |
408 |
|
end if |
420 |
|
integer :: localError |
421 |
|
real(kind=dp) :: dm |
422 |
|
|
423 |
< |
if (.not.allocated(ElectrostaticMap)) then |
423 |
> |
if (.not.hasElectrostaticMap) then |
424 |
|
call handleError("electrostatic", "no ElectrostaticMap was present before first call of getDipoleMoment!") |
425 |
|
return |
426 |
|
end if |
444 |
|
rcuti3 = rcuti2*rcuti |
445 |
|
rcuti4 = rcuti2*rcuti2 |
446 |
|
|
447 |
< |
if (summationMethod .eq. DAMPED_WOLF) then |
448 |
< |
if (.not.haveDWAconstants) then |
449 |
< |
|
376 |
< |
if (.not.haveDampingAlpha) then |
377 |
< |
call handleError("checkSummationMethod", "no Damping Alpha set!") |
378 |
< |
endif |
379 |
< |
|
380 |
< |
if (.not.haveDefaultCutoff) then |
381 |
< |
call handleError("checkSummationMethod", "no Default Cutoff set!") |
382 |
< |
endif |
383 |
< |
|
384 |
< |
constEXP = exp(-dampingAlpha*dampingAlpha*defaultCutoff*defaultCutoff) |
385 |
< |
constERFC = erfc(dampingAlpha*defaultCutoff) |
386 |
< |
|
387 |
< |
haveDWAconstants = .true. |
447 |
> |
if (screeningMethod .eq. DAMPED) then |
448 |
> |
if (.not.haveDampingAlpha) then |
449 |
> |
call handleError("checkSummationMethod", "no Damping Alpha set!") |
450 |
|
endif |
451 |
+ |
|
452 |
+ |
if (.not.haveDefaultCutoff) then |
453 |
+ |
call handleError("checkSummationMethod", "no Default Cutoff set!") |
454 |
+ |
endif |
455 |
+ |
|
456 |
+ |
constEXP = exp(-alpha2*defaultCutoff2) |
457 |
+ |
invRootPi = 0.56418958354775628695d0 |
458 |
+ |
alphaPi = 2.0d0*dampingAlpha*invRootPi |
459 |
+ |
f0c = derfc(dampingAlpha*defaultCutoff) |
460 |
+ |
f1c = alphaPi*defaultCutoff*constEXP + f0c |
461 |
+ |
f2c = alphaPi*2.0d0*alpha2*constEXP |
462 |
+ |
f3c = alphaPi*2.0d0*alpha2*constEXP*defaultCutoff2*defaultCutoff |
463 |
|
endif |
464 |
|
|
465 |
|
if (summationMethod .eq. REACTION_FIELD) then |
466 |
< |
if (.not.haveDielectric) then |
467 |
< |
call handleError("checkSummationMethod", "no reaction field Dielectric set!") |
466 |
> |
if (haveDielectric) then |
467 |
> |
defaultCutoff2 = defaultCutoff*defaultCutoff |
468 |
> |
preRF = (dielectric-1.0d0) / & |
469 |
> |
((2.0d0*dielectric+1.0d0)*defaultCutoff2*defaultCutoff) |
470 |
> |
preRF2 = 2.0d0*preRF |
471 |
> |
else |
472 |
> |
call handleError("checkSummationMethod", "Dielectric not set") |
473 |
|
endif |
474 |
+ |
|
475 |
|
endif |
476 |
|
|
477 |
+ |
if (.not.haveElectroSpline) then |
478 |
+ |
call buildElectroSpline() |
479 |
+ |
end if |
480 |
+ |
|
481 |
|
summationMethodChecked = .true. |
482 |
|
end subroutine checkSummationMethod |
483 |
|
|
484 |
|
|
485 |
< |
|
402 |
< |
subroutine doElectrostaticPair(atom1, atom2, d, rij, r2, sw, & |
485 |
> |
subroutine doElectrostaticPair(atom1, atom2, d, rij, r2, rcut, sw, & |
486 |
|
vpair, fpair, pot, eFrame, f, t, do_pot) |
487 |
|
|
488 |
|
logical, intent(in) :: do_pot |
490 |
|
integer, intent(in) :: atom1, atom2 |
491 |
|
integer :: localError |
492 |
|
|
493 |
< |
real(kind=dp), intent(in) :: rij, r2, sw |
493 |
> |
real(kind=dp), intent(in) :: rij, r2, sw, rcut |
494 |
|
real(kind=dp), intent(in), dimension(3) :: d |
495 |
|
real(kind=dp), intent(inout) :: vpair |
496 |
< |
real(kind=dp), intent(inout), dimension(3) :: fpair |
496 |
> |
real(kind=dp), intent(inout), dimension(3) :: fpair |
497 |
|
|
498 |
< |
real( kind = dp ) :: pot, swi |
498 |
> |
real( kind = dp ) :: pot |
499 |
|
real( kind = dp ), dimension(9,nLocal) :: eFrame |
500 |
|
real( kind = dp ), dimension(3,nLocal) :: f |
501 |
+ |
real( kind = dp ), dimension(3,nLocal) :: felec |
502 |
|
real( kind = dp ), dimension(3,nLocal) :: t |
503 |
|
|
504 |
|
real (kind = dp), dimension(3) :: ux_i, uy_i, uz_i |
516 |
|
real (kind=dp) :: cx_i, cy_i, cz_i |
517 |
|
real (kind=dp) :: cx_j, cy_j, cz_j |
518 |
|
real (kind=dp) :: cx2, cy2, cz2 |
519 |
< |
real (kind=dp) :: ct_i, ct_j, ct_ij, a1 |
519 |
> |
real (kind=dp) :: ct_i, ct_j, ct_ij, a0, a1 |
520 |
|
real (kind=dp) :: riji, ri, ri2, ri3, ri4 |
521 |
|
real (kind=dp) :: pref, vterm, epot, dudr, vterm1, vterm2 |
522 |
|
real (kind=dp) :: xhat, yhat, zhat |
523 |
|
real (kind=dp) :: dudx, dudy, dudz |
524 |
< |
real (kind=dp) :: scale, sc2, bigR, switcher, dswitcher |
524 |
> |
real (kind=dp) :: scale, sc2, bigR |
525 |
> |
real (kind=dp) :: varEXP |
526 |
> |
real (kind=dp) :: pot_term |
527 |
> |
real (kind=dp) :: preVal, rfVal |
528 |
> |
real (kind=dp) :: f13, f134 |
529 |
|
|
442 |
– |
if (.not.allocated(ElectrostaticMap)) then |
443 |
– |
call handleError("electrostatic", "no ElectrostaticMap was present before first call of do_electrostatic_pair!") |
444 |
– |
return |
445 |
– |
end if |
446 |
– |
|
530 |
|
if (.not.summationMethodChecked) then |
531 |
|
call checkSummationMethod() |
532 |
|
endif |
533 |
|
|
451 |
– |
|
534 |
|
#ifdef IS_MPI |
535 |
|
me1 = atid_Row(atom1) |
536 |
|
me2 = atid_Col(atom2) |
542 |
|
!! some variables we'll need independent of electrostatic type: |
543 |
|
|
544 |
|
riji = 1.0d0 / rij |
545 |
< |
|
545 |
> |
|
546 |
|
xhat = d(1) * riji |
547 |
|
yhat = d(2) * riji |
548 |
|
zhat = d(3) * riji |
549 |
|
|
468 |
– |
swi = 1.0d0 / sw |
469 |
– |
|
550 |
|
!! logicals |
551 |
|
i_is_Charge = ElectrostaticMap(me1)%is_Charge |
552 |
|
i_is_Dipole = ElectrostaticMap(me1)%is_Dipole |
580 |
|
if (i_is_SplitDipole) then |
581 |
|
d_i = ElectrostaticMap(me1)%split_dipole_distance |
582 |
|
endif |
583 |
< |
|
583 |
> |
duduz_i = zero |
584 |
|
endif |
585 |
|
|
586 |
|
if (i_is_Quadrupole) then |
611 |
|
cx_i = ux_i(1)*xhat + ux_i(2)*yhat + ux_i(3)*zhat |
612 |
|
cy_i = uy_i(1)*xhat + uy_i(2)*yhat + uy_i(3)*zhat |
613 |
|
cz_i = uz_i(1)*xhat + uz_i(2)*yhat + uz_i(3)*zhat |
614 |
+ |
dudux_i = zero |
615 |
+ |
duduy_i = zero |
616 |
+ |
duduz_i = zero |
617 |
|
endif |
618 |
|
|
619 |
|
if (j_is_Charge) then |
636 |
|
if (j_is_SplitDipole) then |
637 |
|
d_j = ElectrostaticMap(me2)%split_dipole_distance |
638 |
|
endif |
639 |
+ |
duduz_j = zero |
640 |
|
endif |
641 |
|
|
642 |
|
if (j_is_Quadrupole) then |
667 |
|
cx_j = ux_j(1)*xhat + ux_j(2)*yhat + ux_j(3)*zhat |
668 |
|
cy_j = uy_j(1)*xhat + uy_j(2)*yhat + uy_j(3)*zhat |
669 |
|
cz_j = uz_j(1)*xhat + uz_j(2)*yhat + uz_j(3)*zhat |
670 |
+ |
dudux_j = zero |
671 |
+ |
duduy_j = zero |
672 |
+ |
duduz_j = zero |
673 |
|
endif |
674 |
|
|
675 |
< |
!!$ switcher = 1.0d0 |
676 |
< |
!!$ dswitcher = 0.0d0 |
677 |
< |
!!$ ebalance = 0.0d0 |
678 |
< |
!!$ ! weaken the dipole interaction at close range for TAP water |
592 |
< |
!!$ if (j_is_Tap .and. i_is_Tap) then |
593 |
< |
!!$ call calc_switch(rij, mu_i, switcher, dswitcher) |
594 |
< |
!!$ endif |
675 |
> |
epot = zero |
676 |
> |
dudx = zero |
677 |
> |
dudy = zero |
678 |
> |
dudz = zero |
679 |
|
|
596 |
– |
epot = 0.0_dp |
597 |
– |
dudx = 0.0_dp |
598 |
– |
dudy = 0.0_dp |
599 |
– |
dudz = 0.0_dp |
600 |
– |
|
601 |
– |
dudux_i = 0.0_dp |
602 |
– |
duduy_i = 0.0_dp |
603 |
– |
duduz_i = 0.0_dp |
604 |
– |
|
605 |
– |
dudux_j = 0.0_dp |
606 |
– |
duduy_j = 0.0_dp |
607 |
– |
duduz_j = 0.0_dp |
608 |
– |
|
680 |
|
if (i_is_Charge) then |
681 |
|
|
682 |
|
if (j_is_Charge) then |
683 |
< |
|
684 |
< |
if (summationMethod .eq. 1) then |
685 |
< |
vterm = pre11 * q_i * q_j * (riji - rcuti) |
683 |
> |
if (screeningMethod .eq. DAMPED) then |
684 |
> |
call lookupUniformSpline1d(f0spline, rij, f0, df0) |
685 |
> |
f1 = -rij * df0 + f0 |
686 |
> |
!!$ f0 = derfc(dampingAlpha*rij) |
687 |
> |
!!$ varEXP = exp(-alpha2*rij*rij) |
688 |
> |
!!$ f1 = alphaPi*rij*varEXP + f0 |
689 |
> |
endif |
690 |
|
|
691 |
< |
vpair = vpair + vterm |
692 |
< |
epot = epot + sw * vterm |
691 |
> |
preVal = pre11 * q_i * q_j |
692 |
> |
|
693 |
> |
if (summationMethod .eq. SHIFTED_POTENTIAL) then |
694 |
> |
vterm = preVal * (riji*f0 - rcuti*f0c) |
695 |
|
|
696 |
< |
dudr = - sw * pre11 * q_i * q_j * (riji*riji*riji - rcuti2*rcuti) |
696 |
> |
dudr = -sw * preVal * riji * riji * f1 |
697 |
> |
|
698 |
> |
elseif (summationMethod .eq. SHIFTED_FORCE) then |
699 |
> |
vterm = preVal * ( riji*f0 - rcuti*f0c + & |
700 |
> |
f1c*rcuti2*(rij-defaultCutoff) ) |
701 |
|
|
702 |
< |
dudx = dudx + dudr * d(1) |
703 |
< |
dudy = dudy + dudr * d(2) |
704 |
< |
dudz = dudz + dudr * d(3) |
705 |
< |
|
702 |
> |
dudr = -sw*preVal * (riji*riji*f1 - rcuti2*f1c) |
703 |
> |
|
704 |
> |
elseif (summationMethod .eq. REACTION_FIELD) then |
705 |
> |
rfVal = preRF*rij*rij |
706 |
> |
vterm = preVal * ( riji + rfVal ) |
707 |
> |
|
708 |
> |
dudr = sw * preVal * ( 2.0d0*rfVal - riji )*riji |
709 |
> |
|
710 |
|
else |
711 |
< |
vterm = pre11 * q_i * q_j * riji |
627 |
< |
|
628 |
< |
vpair = vpair + vterm |
629 |
< |
epot = epot + sw * vterm |
711 |
> |
vterm = preVal * riji*f0 |
712 |
|
|
713 |
< |
dudr = - sw * vterm * riji |
714 |
< |
|
633 |
< |
dudx = dudx + dudr * xhat |
634 |
< |
dudy = dudy + dudr * yhat |
635 |
< |
dudz = dudz + dudr * zhat |
636 |
< |
|
713 |
> |
dudr = - sw * preVal * riji*riji*f1 |
714 |
> |
|
715 |
|
endif |
716 |
|
|
717 |
+ |
vpair = vpair + vterm |
718 |
+ |
epot = epot + sw*vterm |
719 |
+ |
|
720 |
+ |
dudx = dudx + dudr * xhat |
721 |
+ |
dudy = dudy + dudr * yhat |
722 |
+ |
dudz = dudz + dudr * zhat |
723 |
+ |
|
724 |
|
endif |
725 |
|
|
726 |
|
if (j_is_Dipole) then |
727 |
+ |
if (screeningMethod .eq. DAMPED) then |
728 |
+ |
call lookupUniformSpline1d(f0spline, rij, f0, df0) |
729 |
+ |
f1 = -rij * df0 + f0 |
730 |
+ |
f3 = -2.0d0*alpha2*df0*rij*rij*rij |
731 |
+ |
!!$ f0 = derfc(dampingAlpha*rij) |
732 |
+ |
!!$ varEXP = exp(-alpha2*rij*rij) |
733 |
+ |
!!$ f1 = alphaPi*rij*varEXP + f0 |
734 |
+ |
!!$ f3 = alphaPi*2.0d0*alpha2*varEXP*rij*rij*rij |
735 |
+ |
endif |
736 |
|
|
737 |
< |
pref = sw * pre12 * q_i * mu_j |
737 |
> |
pref = pre12 * q_i * mu_j |
738 |
|
|
739 |
< |
if (summationMethod .eq. 1) then |
739 |
> |
if (summationMethod .eq. REACTION_FIELD) then |
740 |
|
ri2 = riji * riji |
741 |
|
ri3 = ri2 * riji |
742 |
< |
|
743 |
< |
vterm = - pref * ct_j * (ri2 - rcuti2) |
744 |
< |
vpair = vpair + swi*vterm |
745 |
< |
epot = epot + vterm |
742 |
> |
|
743 |
> |
vterm = - pref * ct_j * ( ri2 - preRF2*rij ) |
744 |
> |
vpair = vpair + vterm |
745 |
> |
epot = epot + sw*vterm |
746 |
|
|
747 |
|
!! this has a + sign in the () because the rij vector is |
748 |
|
!! r_j - r_i and the charge-dipole potential takes the origin |
749 |
|
!! as the point dipole, which is atom j in this case. |
750 |
|
|
751 |
< |
dudx = dudx - pref * ( ri3*( uz_j(1) - 3.0d0*ct_j*xhat) & |
752 |
< |
- rcuti3*( uz_j(1) - 3.0d0*ct_j*d(1)*rcuti ) ) |
753 |
< |
dudy = dudy - pref * ( ri3*( uz_j(2) - 3.0d0*ct_j*yhat) & |
754 |
< |
- rcuti3*( uz_j(2) - 3.0d0*ct_j*d(2)*rcuti ) ) |
755 |
< |
dudz = dudz - pref * ( ri3*( uz_j(3) - 3.0d0*ct_j*zhat) & |
756 |
< |
- rcuti3*( uz_j(3) - 3.0d0*ct_j*d(3)*rcuti ) ) |
757 |
< |
|
758 |
< |
duduz_j(1) = duduz_j(1) - pref*( ri2*xhat - d(1)*rcuti3 ) |
759 |
< |
duduz_j(2) = duduz_j(2) - pref*( ri2*yhat - d(2)*rcuti3 ) |
666 |
< |
duduz_j(3) = duduz_j(3) - pref*( ri2*zhat - d(3)*rcuti3 ) |
751 |
> |
dudx = dudx - sw*pref*( ri3*(uz_j(1) - 3.0d0*ct_j*xhat) - & |
752 |
> |
preRF2*uz_j(1) ) |
753 |
> |
dudy = dudy - sw*pref*( ri3*(uz_j(2) - 3.0d0*ct_j*yhat) - & |
754 |
> |
preRF2*uz_j(2) ) |
755 |
> |
dudz = dudz - sw*pref*( ri3*(uz_j(3) - 3.0d0*ct_j*zhat) - & |
756 |
> |
preRF2*uz_j(3) ) |
757 |
> |
duduz_j(1) = duduz_j(1) - sw*pref * xhat * ( ri2 - preRF2*rij ) |
758 |
> |
duduz_j(2) = duduz_j(2) - sw*pref * yhat * ( ri2 - preRF2*rij ) |
759 |
> |
duduz_j(3) = duduz_j(3) - sw*pref * zhat * ( ri2 - preRF2*rij ) |
760 |
|
|
761 |
|
else |
762 |
|
if (j_is_SplitDipole) then |
763 |
< |
BigR = sqrt(r2 + 0.25_dp * d_j * d_j) |
764 |
< |
ri = 1.0_dp / BigR |
763 |
> |
BigR = sqrt(r2 + 0.25d0 * d_j * d_j) |
764 |
> |
ri = 1.0d0 / BigR |
765 |
|
scale = rij * ri |
766 |
|
else |
767 |
|
ri = riji |
768 |
< |
scale = 1.0_dp |
768 |
> |
scale = 1.0d0 |
769 |
|
endif |
770 |
|
|
771 |
|
ri2 = ri * ri |
772 |
|
ri3 = ri2 * ri |
773 |
|
sc2 = scale * scale |
774 |
+ |
|
775 |
+ |
pot_term = ri2 * scale * f1 |
776 |
+ |
vterm = - pref * ct_j * pot_term |
777 |
+ |
vpair = vpair + vterm |
778 |
+ |
epot = epot + sw*vterm |
779 |
|
|
682 |
– |
vterm = - pref * ct_j * ri2 * scale |
683 |
– |
vpair = vpair + swi * vterm |
684 |
– |
epot = epot + vterm |
685 |
– |
|
780 |
|
!! this has a + sign in the () because the rij vector is |
781 |
|
!! r_j - r_i and the charge-dipole potential takes the origin |
782 |
|
!! as the point dipole, which is atom j in this case. |
783 |
|
|
784 |
< |
dudx = dudx - pref * ri3 * ( uz_j(1) - 3.0d0*ct_j*xhat*sc2) |
785 |
< |
dudy = dudy - pref * ri3 * ( uz_j(2) - 3.0d0*ct_j*yhat*sc2) |
786 |
< |
dudz = dudz - pref * ri3 * ( uz_j(3) - 3.0d0*ct_j*zhat*sc2) |
787 |
< |
|
788 |
< |
duduz_j(1) = duduz_j(1) - pref * ri2 * xhat * scale |
789 |
< |
duduz_j(2) = duduz_j(2) - pref * ri2 * yhat * scale |
790 |
< |
duduz_j(3) = duduz_j(3) - pref * ri2 * zhat * scale |
784 |
> |
dudx = dudx - sw*pref * ri3 * ( uz_j(1)*f1 - & |
785 |
> |
ct_j*xhat*sc2*( 3.0d0*f1 + f3 ) ) |
786 |
> |
dudy = dudy - sw*pref * ri3 * ( uz_j(2)*f1 - & |
787 |
> |
ct_j*yhat*sc2*( 3.0d0*f1 + f3 ) ) |
788 |
> |
dudz = dudz - sw*pref * ri3 * ( uz_j(3)*f1 - & |
789 |
> |
ct_j*zhat*sc2*( 3.0d0*f1 + f3 ) ) |
790 |
> |
|
791 |
> |
duduz_j(1) = duduz_j(1) - sw*pref * pot_term * xhat |
792 |
> |
duduz_j(2) = duduz_j(2) - sw*pref * pot_term * yhat |
793 |
> |
duduz_j(3) = duduz_j(3) - sw*pref * pot_term * zhat |
794 |
|
|
795 |
|
endif |
796 |
|
endif |
797 |
|
|
798 |
|
if (j_is_Quadrupole) then |
799 |
+ |
if (screeningMethod .eq. DAMPED) then |
800 |
+ |
call lookupUniformSpline1d(f0spline, rij, f0, df0) |
801 |
+ |
!!$ f0 = derfc(dampingAlpha*rij) |
802 |
+ |
!!$ varEXP = exp(-alpha2*rij*rij) |
803 |
+ |
!!$ f1 = alphaPi*rij*varEXP + f0 |
804 |
+ |
!!$ f2 = alphaPi*2.0d0*alpha2*varEXP |
805 |
+ |
f1 = -rij * df0 + f0 |
806 |
+ |
f2 = -2.0d0*alpha2*df0 |
807 |
+ |
f3 = f2*rij*rij*rij |
808 |
+ |
f4 = 2.0d0*alpha2*f2*rij |
809 |
+ |
endif |
810 |
+ |
|
811 |
|
ri2 = riji * riji |
812 |
|
ri3 = ri2 * riji |
813 |
|
ri4 = ri2 * ri2 |
815 |
|
cy2 = cy_j * cy_j |
816 |
|
cz2 = cz_j * cz_j |
817 |
|
|
818 |
< |
|
819 |
< |
pref = sw * pre14 * q_i / 3.0_dp |
820 |
< |
|
821 |
< |
if (summationMethod .eq. 1) then |
822 |
< |
vterm1 = pref * ri3*( qxx_j * (3.0_dp*cx2 - 1.0_dp) + & |
823 |
< |
qyy_j * (3.0_dp*cy2 - 1.0_dp) + & |
824 |
< |
qzz_j * (3.0_dp*cz2 - 1.0_dp) ) |
716 |
< |
vterm2 = pref * rcuti3*( qxx_j * (3.0_dp*cx2 - 1.0_dp) + & |
717 |
< |
qyy_j * (3.0_dp*cy2 - 1.0_dp) + & |
718 |
< |
qzz_j * (3.0_dp*cz2 - 1.0_dp) ) |
719 |
< |
vpair = vpair + swi*( vterm1 - vterm2 ) |
720 |
< |
epot = epot + ( vterm1 - vterm2 ) |
721 |
< |
|
722 |
< |
dudx = dudx - (5.0_dp * & |
723 |
< |
(vterm1*riji*xhat - vterm2*rcuti2*d(1))) + pref * ( & |
724 |
< |
(ri4 - rcuti4)*(qxx_j*(6.0_dp*cx_j*ux_j(1)) - & |
725 |
< |
qxx_j*2.0_dp*(xhat - rcuti*d(1))) + & |
726 |
< |
(ri4 - rcuti4)*(qyy_j*(6.0_dp*cy_j*uy_j(1)) - & |
727 |
< |
qyy_j*2.0_dp*(xhat - rcuti*d(1))) + & |
728 |
< |
(ri4 - rcuti4)*(qzz_j*(6.0_dp*cz_j*uz_j(1)) - & |
729 |
< |
qzz_j*2.0_dp*(xhat - rcuti*d(1))) ) |
730 |
< |
dudy = dudy - (5.0_dp * & |
731 |
< |
(vterm1*riji*yhat - vterm2*rcuti2*d(2))) + pref * ( & |
732 |
< |
(ri4 - rcuti4)*(qxx_j*(6.0_dp*cx_j*ux_j(2)) - & |
733 |
< |
qxx_j*2.0_dp*(yhat - rcuti*d(2))) + & |
734 |
< |
(ri4 - rcuti4)*(qyy_j*(6.0_dp*cy_j*uy_j(2)) - & |
735 |
< |
qyy_j*2.0_dp*(yhat - rcuti*d(2))) + & |
736 |
< |
(ri4 - rcuti4)*(qzz_j*(6.0_dp*cz_j*uz_j(2)) - & |
737 |
< |
qzz_j*2.0_dp*(yhat - rcuti*d(2))) ) |
738 |
< |
dudz = dudz - (5.0_dp * & |
739 |
< |
(vterm1*riji*zhat - vterm2*rcuti2*d(3))) + pref * ( & |
740 |
< |
(ri4 - rcuti4)*(qxx_j*(6.0_dp*cx_j*ux_j(3)) - & |
741 |
< |
qxx_j*2.0_dp*(zhat - rcuti*d(3))) + & |
742 |
< |
(ri4 - rcuti4)*(qyy_j*(6.0_dp*cy_j*uy_j(3)) - & |
743 |
< |
qyy_j*2.0_dp*(zhat - rcuti*d(3))) + & |
744 |
< |
(ri4 - rcuti4)*(qzz_j*(6.0_dp*cz_j*uz_j(3)) - & |
745 |
< |
qzz_j*2.0_dp*(zhat - rcuti*d(3))) ) |
746 |
< |
|
747 |
< |
dudux_j(1) = dudux_j(1) + pref * (ri3*(qxx_j*6.0_dp*cx_j*xhat) - & |
748 |
< |
rcuti4*(qxx_j*6.0_dp*cx_j*d(1))) |
749 |
< |
dudux_j(2) = dudux_j(2) + pref * (ri3*(qxx_j*6.0_dp*cx_j*yhat) - & |
750 |
< |
rcuti4*(qxx_j*6.0_dp*cx_j*d(2))) |
751 |
< |
dudux_j(3) = dudux_j(3) + pref * (ri3*(qxx_j*6.0_dp*cx_j*zhat) - & |
752 |
< |
rcuti4*(qxx_j*6.0_dp*cx_j*d(3))) |
753 |
< |
|
754 |
< |
duduy_j(1) = duduy_j(1) + pref * (ri3*(qyy_j*6.0_dp*cy_j*xhat) - & |
755 |
< |
rcuti4*(qyy_j*6.0_dp*cx_j*d(1))) |
756 |
< |
duduy_j(2) = duduy_j(2) + pref * (ri3*(qyy_j*6.0_dp*cy_j*yhat) - & |
757 |
< |
rcuti4*(qyy_j*6.0_dp*cx_j*d(2))) |
758 |
< |
duduy_j(3) = duduy_j(3) + pref * (ri3*(qyy_j*6.0_dp*cy_j*zhat) - & |
759 |
< |
rcuti4*(qyy_j*6.0_dp*cx_j*d(3))) |
760 |
< |
|
761 |
< |
duduz_j(1) = duduz_j(1) + pref * (ri3*(qzz_j*6.0_dp*cz_j*xhat) - & |
762 |
< |
rcuti4*(qzz_j*6.0_dp*cx_j*d(1))) |
763 |
< |
duduz_j(2) = duduz_j(2) + pref * (ri3*(qzz_j*6.0_dp*cz_j*yhat) - & |
764 |
< |
rcuti4*(qzz_j*6.0_dp*cx_j*d(2))) |
765 |
< |
duduz_j(3) = duduz_j(3) + pref * (ri3*(qzz_j*6.0_dp*cz_j*zhat) - & |
766 |
< |
rcuti4*(qzz_j*6.0_dp*cx_j*d(3))) |
767 |
< |
|
768 |
< |
else |
769 |
< |
vterm = pref * ri3 * (qxx_j * (3.0_dp*cx2 - 1.0_dp) + & |
770 |
< |
qyy_j * (3.0_dp*cy2 - 1.0_dp) + & |
771 |
< |
qzz_j * (3.0_dp*cz2 - 1.0_dp)) |
772 |
< |
vpair = vpair + swi * vterm |
773 |
< |
epot = epot + vterm |
774 |
< |
|
775 |
< |
dudx = dudx - 5.0_dp*vterm*riji*xhat + pref * ri4 * ( & |
776 |
< |
qxx_j*(6.0_dp*cx_j*ux_j(1) - 2.0_dp*xhat) + & |
777 |
< |
qyy_j*(6.0_dp*cy_j*uy_j(1) - 2.0_dp*xhat) + & |
778 |
< |
qzz_j*(6.0_dp*cz_j*uz_j(1) - 2.0_dp*xhat) ) |
779 |
< |
dudy = dudy - 5.0_dp*vterm*riji*yhat + pref * ri4 * ( & |
780 |
< |
qxx_j*(6.0_dp*cx_j*ux_j(2) - 2.0_dp*yhat) + & |
781 |
< |
qyy_j*(6.0_dp*cy_j*uy_j(2) - 2.0_dp*yhat) + & |
782 |
< |
qzz_j*(6.0_dp*cz_j*uz_j(2) - 2.0_dp*yhat) ) |
783 |
< |
dudz = dudz - 5.0_dp*vterm*riji*zhat + pref * ri4 * ( & |
784 |
< |
qxx_j*(6.0_dp*cx_j*ux_j(3) - 2.0_dp*zhat) + & |
785 |
< |
qyy_j*(6.0_dp*cy_j*uy_j(3) - 2.0_dp*zhat) + & |
786 |
< |
qzz_j*(6.0_dp*cz_j*uz_j(3) - 2.0_dp*zhat) ) |
787 |
< |
|
788 |
< |
dudux_j(1) = dudux_j(1) + pref * ri3*(qxx_j*6.0_dp*cx_j*xhat) |
789 |
< |
dudux_j(2) = dudux_j(2) + pref * ri3*(qxx_j*6.0_dp*cx_j*yhat) |
790 |
< |
dudux_j(3) = dudux_j(3) + pref * ri3*(qxx_j*6.0_dp*cx_j*zhat) |
791 |
< |
|
792 |
< |
duduy_j(1) = duduy_j(1) + pref * ri3*(qyy_j*6.0_dp*cy_j*xhat) |
793 |
< |
duduy_j(2) = duduy_j(2) + pref * ri3*(qyy_j*6.0_dp*cy_j*yhat) |
794 |
< |
duduy_j(3) = duduy_j(3) + pref * ri3*(qyy_j*6.0_dp*cy_j*zhat) |
795 |
< |
|
796 |
< |
duduz_j(1) = duduz_j(1) + pref * ri3*(qzz_j*6.0_dp*cz_j*xhat) |
797 |
< |
duduz_j(2) = duduz_j(2) + pref * ri3*(qzz_j*6.0_dp*cz_j*yhat) |
798 |
< |
duduz_j(3) = duduz_j(3) + pref * ri3*(qzz_j*6.0_dp*cz_j*zhat) |
818 |
> |
pref = pre14 * q_i / 3.0d0 |
819 |
> |
pot_term = ri3*(qxx_j * (3.0d0*cx2 - 1.0d0) + & |
820 |
> |
qyy_j * (3.0d0*cy2 - 1.0d0) + & |
821 |
> |
qzz_j * (3.0d0*cz2 - 1.0d0)) |
822 |
> |
vterm = pref * (pot_term*f1 + (qxx_j*cx2 + qyy_j*cy2 + qzz_j*cz2)*f2) |
823 |
> |
vpair = vpair + vterm |
824 |
> |
epot = epot + sw*vterm |
825 |
|
|
826 |
< |
endif |
826 |
> |
dudx = dudx - sw*pref*pot_term*riji*xhat*(5.0d0*f1 + f3) + & |
827 |
> |
sw*pref*ri4 * ( & |
828 |
> |
qxx_j*(2.0d0*cx_j*ux_j(1)*(3.0d0*f1 + f3) - 2.0d0*xhat*f1) + & |
829 |
> |
qyy_j*(2.0d0*cy_j*uy_j(1)*(3.0d0*f1 + f3) - 2.0d0*xhat*f1) + & |
830 |
> |
qzz_j*(2.0d0*cz_j*uz_j(1)*(3.0d0*f1 + f3) - 2.0d0*xhat*f1) ) & |
831 |
> |
+ (qxx_j*cx2 + qyy_j*cy2 + qzz_j*cz2)*f4 |
832 |
> |
dudy = dudy - sw*pref*pot_term*riji*yhat*(5.0d0*f1 + f3) + & |
833 |
> |
sw*pref*ri4 * ( & |
834 |
> |
qxx_j*(2.0d0*cx_j*ux_j(2)*(3.0d0*f1 + f3) - 2.0d0*yhat*f1) + & |
835 |
> |
qyy_j*(2.0d0*cy_j*uy_j(2)*(3.0d0*f1 + f3) - 2.0d0*yhat*f1) + & |
836 |
> |
qzz_j*(2.0d0*cz_j*uz_j(2)*(3.0d0*f1 + f3) - 2.0d0*yhat*f1) ) & |
837 |
> |
+ (qxx_j*cx2 + qyy_j*cy2 + qzz_j*cz2)*f4 |
838 |
> |
dudz = dudz - sw*pref*pot_term*riji*zhat*(5.0d0*f1 + f3) + & |
839 |
> |
sw*pref*ri4 * ( & |
840 |
> |
qxx_j*(2.0d0*cx_j*ux_j(3)*(3.0d0*f1 + f3) - 2.0d0*zhat*f1) + & |
841 |
> |
qyy_j*(2.0d0*cy_j*uy_j(3)*(3.0d0*f1 + f3) - 2.0d0*zhat*f1) + & |
842 |
> |
qzz_j*(2.0d0*cz_j*uz_j(3)*(3.0d0*f1 + f3) - 2.0d0*zhat*f1) ) & |
843 |
> |
+ (qxx_j*cx2 + qyy_j*cy2 + qzz_j*cz2)*f4 |
844 |
> |
|
845 |
> |
dudux_j(1) = dudux_j(1) + sw*pref*ri3*( (qxx_j*2.0d0*cx_j*xhat) & |
846 |
> |
* (3.0d0*f1 + f3) ) |
847 |
> |
dudux_j(2) = dudux_j(2) + sw*pref*ri3*( (qxx_j*2.0d0*cx_j*yhat) & |
848 |
> |
* (3.0d0*f1 + f3) ) |
849 |
> |
dudux_j(3) = dudux_j(3) + sw*pref*ri3*( (qxx_j*2.0d0*cx_j*zhat) & |
850 |
> |
* (3.0d0*f1 + f3) ) |
851 |
> |
|
852 |
> |
duduy_j(1) = duduy_j(1) + sw*pref*ri3*( (qyy_j*2.0d0*cy_j*xhat) & |
853 |
> |
* (3.0d0*f1 + f3) ) |
854 |
> |
duduy_j(2) = duduy_j(2) + sw*pref*ri3*( (qyy_j*2.0d0*cy_j*yhat) & |
855 |
> |
* (3.0d0*f1 + f3) ) |
856 |
> |
duduy_j(3) = duduy_j(3) + sw*pref*ri3*( (qyy_j*2.0d0*cy_j*zhat) & |
857 |
> |
* (3.0d0*f1 + f3) ) |
858 |
> |
|
859 |
> |
duduz_j(1) = duduz_j(1) + sw*pref*ri3*( (qzz_j*2.0d0*cz_j*xhat) & |
860 |
> |
* (3.0d0*f1 + f3) ) |
861 |
> |
duduz_j(2) = duduz_j(2) + sw*pref*ri3*( (qzz_j*2.0d0*cz_j*yhat) & |
862 |
> |
* (3.0d0*f1 + f3) ) |
863 |
> |
duduz_j(3) = duduz_j(3) + sw*pref*ri3*( (qzz_j*2.0d0*cz_j*zhat) & |
864 |
> |
* (3.0d0*f1 + f3) ) |
865 |
> |
|
866 |
|
endif |
867 |
|
endif |
868 |
< |
|
868 |
> |
|
869 |
|
if (i_is_Dipole) then |
870 |
|
|
871 |
|
if (j_is_Charge) then |
872 |
+ |
if (screeningMethod .eq. DAMPED) then |
873 |
+ |
call lookupUniformSpline1d(f0spline, rij, f0, df0) |
874 |
+ |
f1 = -rij * df0 + f0 |
875 |
+ |
f3 = -2.0d0*alpha2*df0*rij*rij*rij |
876 |
+ |
!!$ f0 = derfc(dampingAlpha*rij) |
877 |
+ |
!!$ varEXP = exp(-alpha2*rij*rij) |
878 |
+ |
!!$ f1 = alphaPi*rij*varEXP + f0 |
879 |
+ |
!!$ f3 = alphaPi*2.0d0*alpha2*varEXP*rij*rij*rij |
880 |
+ |
endif |
881 |
+ |
|
882 |
+ |
pref = pre12 * q_j * mu_i |
883 |
+ |
|
884 |
+ |
if (summationMethod .eq. SHIFTED_POTENTIAL) then |
885 |
+ |
ri2 = riji * riji |
886 |
+ |
ri3 = ri2 * riji |
887 |
+ |
|
888 |
+ |
pot_term = ri2*f1 - rcuti2*f1c |
889 |
+ |
vterm = pref * ct_i * pot_term |
890 |
+ |
vpair = vpair + vterm |
891 |
+ |
epot = epot + sw*vterm |
892 |
+ |
|
893 |
+ |
dudx = dudx + sw*pref*( ri3*(uz_i(1)*f1-ct_i*xhat*(3.0d0*f1+f3)) ) |
894 |
+ |
dudy = dudy + sw*pref*( ri3*(uz_i(2)*f1-ct_i*yhat*(3.0d0*f1+f3)) ) |
895 |
+ |
dudz = dudz + sw*pref*( ri3*(uz_i(3)*f1-ct_i*zhat*(3.0d0*f1+f3)) ) |
896 |
+ |
|
897 |
+ |
duduz_i(1) = duduz_i(1) + sw*pref * xhat * pot_term |
898 |
+ |
duduz_i(2) = duduz_i(2) + sw*pref * yhat * pot_term |
899 |
+ |
duduz_i(3) = duduz_i(3) + sw*pref * zhat * pot_term |
900 |
|
|
901 |
< |
pref = sw * pre12 * q_j * mu_i |
809 |
< |
|
810 |
< |
if (summationMethod .eq. 1) then |
901 |
> |
elseif (summationMethod .eq. SHIFTED_FORCE) then |
902 |
|
ri2 = riji * riji |
903 |
|
ri3 = ri2 * riji |
904 |
|
|
905 |
< |
vterm = pref * ct_i * (ri2 - rcuti2) |
906 |
< |
vpair = vpair + swi * vterm |
907 |
< |
epot = epot + vterm |
905 |
> |
!! might need a -(f1c-f0c) or dct_i/dr in the derivative term... |
906 |
> |
pot_term = ri2*f1 - rcuti2*f1c + & |
907 |
> |
(2.0d0*rcuti3*f1c + f2c)*( rij - defaultCutoff ) |
908 |
> |
vterm = pref * ct_i * pot_term |
909 |
> |
vpair = vpair + vterm |
910 |
> |
epot = epot + sw*vterm |
911 |
|
|
912 |
< |
!! this has a + sign in the () because the rij vector is |
913 |
< |
!! r_j - r_i and the charge-dipole potential takes the origin |
914 |
< |
!! as the point dipole, which is atom j in this case. |
912 |
> |
dudx = dudx + sw*pref*( ri3*(uz_i(1)*f1-ct_i*xhat*(3.0d0*f1+f3)) & |
913 |
> |
- rcuti3*(uz_i(1)*f1c-ct_i*xhat*(3.0d0*f1c+f3c)) ) |
914 |
> |
dudy = dudy + sw*pref*( ri3*(uz_i(2)*f1-ct_i*yhat*(3.0d0*f1+f3)) & |
915 |
> |
- rcuti3*(uz_i(1)*f1c-ct_i*xhat*(3.0d0*f1c+f3c)) ) |
916 |
> |
dudz = dudz + sw*pref*( ri3*(uz_i(3)*f1-ct_i*zhat*(3.0d0*f1+f3)) & |
917 |
> |
- rcuti3*(uz_i(1)*f1c-ct_i*xhat*(3.0d0*f1c+f3c)) ) |
918 |
|
|
919 |
< |
dudx = dudx + pref * ( ri3*( uz_i(1) - 3.0d0*ct_i*xhat) & |
920 |
< |
- rcuti3*( uz_i(1) - 3.0d0*ct_i*d(1)*rcuti ) ) |
921 |
< |
dudy = dudy + pref * ( ri3*( uz_i(2) - 3.0d0*ct_i*yhat) & |
922 |
< |
- rcuti3*( uz_i(2) - 3.0d0*ct_i*d(2)*rcuti ) ) |
923 |
< |
dudz = dudz + pref * ( ri3*( uz_i(3) - 3.0d0*ct_i*zhat) & |
924 |
< |
- rcuti3*( uz_i(3) - 3.0d0*ct_i*d(3)*rcuti ) ) |
919 |
> |
duduz_i(1) = duduz_i(1) + sw*pref * xhat * pot_term |
920 |
> |
duduz_i(2) = duduz_i(2) + sw*pref * yhat * pot_term |
921 |
> |
duduz_i(3) = duduz_i(3) + sw*pref * zhat * pot_term |
922 |
> |
|
923 |
> |
elseif (summationMethod .eq. REACTION_FIELD) then |
924 |
> |
ri2 = riji * riji |
925 |
> |
ri3 = ri2 * riji |
926 |
> |
|
927 |
> |
vterm = pref * ct_i * ( ri2 - preRF2*rij ) |
928 |
> |
vpair = vpair + vterm |
929 |
> |
epot = epot + sw*vterm |
930 |
|
|
931 |
< |
duduz_i(1) = duduz_i(1) - pref*( ri2*xhat - d(1)*rcuti3 ) |
932 |
< |
duduz_i(2) = duduz_i(2) - pref*( ri2*yhat - d(2)*rcuti3 ) |
933 |
< |
duduz_i(3) = duduz_i(3) - pref*( ri2*zhat - d(3)*rcuti3 ) |
931 |
> |
dudx = dudx + sw*pref * ( ri3*(uz_i(1) - 3.0d0*ct_i*xhat) - & |
932 |
> |
preRF2*uz_i(1) ) |
933 |
> |
dudy = dudy + sw*pref * ( ri3*(uz_i(2) - 3.0d0*ct_i*yhat) - & |
934 |
> |
preRF2*uz_i(2) ) |
935 |
> |
dudz = dudz + sw*pref * ( ri3*(uz_i(3) - 3.0d0*ct_i*zhat) - & |
936 |
> |
preRF2*uz_i(3) ) |
937 |
> |
|
938 |
> |
duduz_i(1) = duduz_i(1) + sw*pref * xhat * ( ri2 - preRF2*rij ) |
939 |
> |
duduz_i(2) = duduz_i(2) + sw*pref * yhat * ( ri2 - preRF2*rij ) |
940 |
> |
duduz_i(3) = duduz_i(3) + sw*pref * zhat * ( ri2 - preRF2*rij ) |
941 |
|
|
942 |
|
else |
943 |
|
if (i_is_SplitDipole) then |
944 |
< |
BigR = sqrt(r2 + 0.25_dp * d_i * d_i) |
945 |
< |
ri = 1.0_dp / BigR |
944 |
> |
BigR = sqrt(r2 + 0.25d0 * d_i * d_i) |
945 |
> |
ri = 1.0d0 / BigR |
946 |
|
scale = rij * ri |
947 |
|
else |
948 |
|
ri = riji |
949 |
< |
scale = 1.0_dp |
949 |
> |
scale = 1.0d0 |
950 |
|
endif |
951 |
|
|
952 |
|
ri2 = ri * ri |
953 |
|
ri3 = ri2 * ri |
954 |
|
sc2 = scale * scale |
955 |
+ |
|
956 |
+ |
pot_term = ri2 * f1 * scale |
957 |
+ |
vterm = pref * ct_i * pot_term |
958 |
+ |
vpair = vpair + vterm |
959 |
+ |
epot = epot + sw*vterm |
960 |
|
|
961 |
< |
vterm = pref * ct_i * ri2 * scale |
962 |
< |
vpair = vpair + swi * vterm |
963 |
< |
epot = epot + vterm |
961 |
> |
dudx = dudx + sw*pref * ri3 * ( uz_i(1)*f1 - & |
962 |
> |
ct_i*xhat*sc2*( 3.0d0*f1 + f3 ) ) |
963 |
> |
dudy = dudy + sw*pref * ri3 * ( uz_i(2)*f1 - & |
964 |
> |
ct_i*yhat*sc2*( 3.0d0*f1 + f3 ) ) |
965 |
> |
dudz = dudz + sw*pref * ri3 * ( uz_i(3)*f1 - & |
966 |
> |
ct_i*zhat*sc2*( 3.0d0*f1 + f3 ) ) |
967 |
|
|
968 |
< |
dudx = dudx + pref * ri3 * ( uz_i(1) - 3.0d0 * ct_i * xhat*sc2) |
969 |
< |
dudy = dudy + pref * ri3 * ( uz_i(2) - 3.0d0 * ct_i * yhat*sc2) |
970 |
< |
dudz = dudz + pref * ri3 * ( uz_i(3) - 3.0d0 * ct_i * zhat*sc2) |
854 |
< |
|
855 |
< |
duduz_i(1) = duduz_i(1) + pref * ri2 * xhat * scale |
856 |
< |
duduz_i(2) = duduz_i(2) + pref * ri2 * yhat * scale |
857 |
< |
duduz_i(3) = duduz_i(3) + pref * ri2 * zhat * scale |
968 |
> |
duduz_i(1) = duduz_i(1) + sw*pref * pot_term * xhat |
969 |
> |
duduz_i(2) = duduz_i(2) + sw*pref * pot_term * yhat |
970 |
> |
duduz_i(3) = duduz_i(3) + sw*pref * pot_term * zhat |
971 |
|
endif |
972 |
|
endif |
973 |
< |
|
973 |
> |
|
974 |
|
if (j_is_Dipole) then |
975 |
+ |
if (screeningMethod .eq. DAMPED) then |
976 |
+ |
call lookupUniformSpline1d(f0spline, rij, f0, df0) |
977 |
+ |
!!$ f0 = derfc(dampingAlpha*rij) |
978 |
+ |
!!$ varEXP = exp(-alpha2*rij*rij) |
979 |
+ |
!!$ f1 = alphaPi*rij*varEXP + f0 |
980 |
+ |
!!$ f2 = alphaPi*2.0d0*alpha2*varEXP |
981 |
+ |
f1 = -rij * df0 + f0 |
982 |
+ |
f2 = -2.0d0*alpha2*df0 |
983 |
+ |
f3 = f2*rij*rij*rij |
984 |
+ |
f4 = 2.0d0*alpha2*f3*rij*rij |
985 |
+ |
endif |
986 |
|
|
987 |
< |
pref = sw * pre22 * mu_i * mu_j |
987 |
> |
ct_ij = uz_i(1)*uz_j(1) + uz_i(2)*uz_j(2) + uz_i(3)*uz_j(3) |
988 |
> |
|
989 |
> |
ri2 = riji * riji |
990 |
> |
ri3 = ri2 * riji |
991 |
> |
ri4 = ri2 * ri2 |
992 |
> |
|
993 |
> |
pref = pre22 * mu_i * mu_j |
994 |
|
|
995 |
< |
if (summationMethod .eq. 1) then |
996 |
< |
ri2 = riji * riji |
997 |
< |
ri3 = ri2 * riji |
998 |
< |
ri4 = ri2 * ri2 |
999 |
< |
|
870 |
< |
vterm = pref * (ri3 - rcuti3) * (ct_ij - 3.0d0 * ct_i * ct_j) |
871 |
< |
vpair = vpair + swi * vterm |
872 |
< |
epot = epot + vterm |
995 |
> |
if (summationMethod .eq. REACTION_FIELD) then |
996 |
> |
vterm = pref*( ri3*(ct_ij - 3.0d0 * ct_i * ct_j) - & |
997 |
> |
preRF2*ct_ij ) |
998 |
> |
vpair = vpair + vterm |
999 |
> |
epot = epot + sw*vterm |
1000 |
|
|
1001 |
|
a1 = 5.0d0 * ct_i * ct_j - ct_ij |
1002 |
|
|
1003 |
< |
dudx = dudx + pref*3.0d0*ri4 & |
1004 |
< |
*(a1*xhat-ct_i*uz_j(1)-ct_j*uz_i(1)) - & |
1005 |
< |
pref*3.0d0*rcuti4*(a1*rcuti*d(1)-ct_i*uz_j(1)-ct_j*uz_i(1)) |
1006 |
< |
dudy = dudy + pref*3.0d0*ri4 & |
1007 |
< |
*(a1*yhat-ct_i*uz_j(2)-ct_j*uz_i(2)) - & |
1008 |
< |
pref*3.0d0*rcuti4*(a1*rcuti*d(2)-ct_i*uz_j(2)-ct_j*uz_i(2)) |
882 |
< |
dudz = dudz + pref*3.0d0*ri4 & |
883 |
< |
*(a1*zhat-ct_i*uz_j(3)-ct_j*uz_i(3)) - & |
884 |
< |
pref*3.0d0*rcuti4*(a1*rcuti*d(3)-ct_i*uz_j(3)-ct_j*uz_i(3)) |
1003 |
> |
dudx = dudx + sw*pref*3.0d0*ri4 & |
1004 |
> |
* (a1*xhat-ct_i*uz_j(1)-ct_j*uz_i(1)) |
1005 |
> |
dudy = dudy + sw*pref*3.0d0*ri4 & |
1006 |
> |
* (a1*yhat-ct_i*uz_j(2)-ct_j*uz_i(2)) |
1007 |
> |
dudz = dudz + sw*pref*3.0d0*ri4 & |
1008 |
> |
* (a1*zhat-ct_i*uz_j(3)-ct_j*uz_i(3)) |
1009 |
|
|
1010 |
< |
duduz_i(1) = duduz_i(1) + pref*(ri3*(uz_j(1) - 3.0d0*ct_j*xhat) & |
1011 |
< |
- rcuti3*(uz_j(1) - 3.0d0*ct_j*d(1)*rcuti)) |
1012 |
< |
duduz_i(2) = duduz_i(2) + pref*(ri3*(uz_j(2) - 3.0d0*ct_j*yhat) & |
1013 |
< |
- rcuti3*(uz_j(2) - 3.0d0*ct_j*d(2)*rcuti)) |
1014 |
< |
duduz_i(3) = duduz_i(3) + pref*(ri3*(uz_j(3) - 3.0d0*ct_j*zhat) & |
1015 |
< |
- rcuti3*(uz_j(3) - 3.0d0*ct_j*d(3)*rcuti)) |
1016 |
< |
duduz_j(1) = duduz_j(1) + pref*(ri3*(uz_i(1) - 3.0d0*ct_i*xhat) & |
1017 |
< |
- rcuti3*(uz_i(1) - 3.0d0*ct_i*d(1)*rcuti)) |
1018 |
< |
duduz_j(2) = duduz_j(2) + pref*(ri3*(uz_i(2) - 3.0d0*ct_i*yhat) & |
1019 |
< |
- rcuti3*(uz_i(2) - 3.0d0*ct_i*d(2)*rcuti)) |
1020 |
< |
duduz_j(3) = duduz_j(3) + pref*(ri3*(uz_i(3) - 3.0d0*ct_i*zhat) & |
1021 |
< |
- rcuti3*(uz_i(3) - 3.0d0*ct_i*d(3)*rcuti)) |
1010 |
> |
duduz_i(1) = duduz_i(1) + sw*pref*(ri3*(uz_j(1)-3.0d0*ct_j*xhat) & |
1011 |
> |
- preRF2*uz_j(1)) |
1012 |
> |
duduz_i(2) = duduz_i(2) + sw*pref*(ri3*(uz_j(2)-3.0d0*ct_j*yhat) & |
1013 |
> |
- preRF2*uz_j(2)) |
1014 |
> |
duduz_i(3) = duduz_i(3) + sw*pref*(ri3*(uz_j(3)-3.0d0*ct_j*zhat) & |
1015 |
> |
- preRF2*uz_j(3)) |
1016 |
> |
duduz_j(1) = duduz_j(1) + sw*pref*(ri3*(uz_i(1)-3.0d0*ct_i*xhat) & |
1017 |
> |
- preRF2*uz_i(1)) |
1018 |
> |
duduz_j(2) = duduz_j(2) + sw*pref*(ri3*(uz_i(2)-3.0d0*ct_i*yhat) & |
1019 |
> |
- preRF2*uz_i(2)) |
1020 |
> |
duduz_j(3) = duduz_j(3) + sw*pref*(ri3*(uz_i(3)-3.0d0*ct_i*zhat) & |
1021 |
> |
- preRF2*uz_i(3)) |
1022 |
> |
|
1023 |
|
else |
899 |
– |
|
1024 |
|
if (i_is_SplitDipole) then |
1025 |
|
if (j_is_SplitDipole) then |
1026 |
< |
BigR = sqrt(r2 + 0.25_dp * d_i * d_i + 0.25_dp * d_j * d_j) |
1026 |
> |
BigR = sqrt(r2 + 0.25d0 * d_i * d_i + 0.25d0 * d_j * d_j) |
1027 |
|
else |
1028 |
< |
BigR = sqrt(r2 + 0.25_dp * d_i * d_i) |
1028 |
> |
BigR = sqrt(r2 + 0.25d0 * d_i * d_i) |
1029 |
|
endif |
1030 |
< |
ri = 1.0_dp / BigR |
1030 |
> |
ri = 1.0d0 / BigR |
1031 |
|
scale = rij * ri |
1032 |
|
else |
1033 |
|
if (j_is_SplitDipole) then |
1034 |
< |
BigR = sqrt(r2 + 0.25_dp * d_j * d_j) |
1035 |
< |
ri = 1.0_dp / BigR |
1034 |
> |
BigR = sqrt(r2 + 0.25d0 * d_j * d_j) |
1035 |
> |
ri = 1.0d0 / BigR |
1036 |
|
scale = rij * ri |
1037 |
|
else |
1038 |
|
ri = riji |
1039 |
< |
scale = 1.0_dp |
1039 |
> |
scale = 1.0d0 |
1040 |
|
endif |
1041 |
|
endif |
1042 |
|
|
919 |
– |
ct_ij = uz_i(1)*uz_j(1) + uz_i(2)*uz_j(2) + uz_i(3)*uz_j(3) |
920 |
– |
|
921 |
– |
ri2 = ri * ri |
922 |
– |
ri3 = ri2 * ri |
923 |
– |
ri4 = ri2 * ri2 |
1043 |
|
sc2 = scale * scale |
1044 |
+ |
|
1045 |
+ |
pot_term = (ct_ij - 3.0d0 * ct_i * ct_j * sc2) |
1046 |
+ |
vterm = pref * ( ri3*pot_term*f1 + (ct_i * ct_j)*f2 ) |
1047 |
+ |
vpair = vpair + vterm |
1048 |
+ |
epot = epot + sw*vterm |
1049 |
|
|
1050 |
< |
vterm = pref * ri3 * (ct_ij - 3.0d0 * ct_i * ct_j * sc2) |
1051 |
< |
vpair = vpair + swi * vterm |
928 |
< |
epot = epot + vterm |
1050 |
> |
f13 = f1+f3 |
1051 |
> |
f134 = f13 + f4 |
1052 |
|
|
1053 |
< |
a1 = 5.0d0 * ct_i * ct_j * sc2 - ct_ij |
1053 |
> |
!!$ dudx = dudx + sw*pref * ( ri4*scale*( & |
1054 |
> |
!!$ 3.0d0*(a1*xhat-ct_i*uz_j(1)-ct_j*uz_i(1))*f1 & |
1055 |
> |
!!$ - pot_term*f3) & |
1056 |
> |
!!$ + 2.0d0*ct_i*ct_j*xhat*(ct_i*uz_j(1)+ct_j*uz_i(1))*f3 & |
1057 |
> |
!!$ + (ct_i * ct_j)*f4 ) |
1058 |
> |
!!$ dudy = dudy + sw*pref * ( ri4*scale*( & |
1059 |
> |
!!$ 3.0d0*(a1*yhat-ct_i*uz_j(2)-ct_j*uz_i(2))*f1 & |
1060 |
> |
!!$ - pot_term*f3) & |
1061 |
> |
!!$ + 2.0d0*ct_i*ct_j*yhat*(ct_i*uz_j(2)+ct_j*uz_i(2))*f3 & |
1062 |
> |
!!$ + (ct_i * ct_j)*f4 ) |
1063 |
> |
!!$ dudz = dudz + sw*pref * ( ri4*scale*( & |
1064 |
> |
!!$ 3.0d0*(a1*zhat-ct_i*uz_j(3)-ct_j*uz_i(3))*f1 & |
1065 |
> |
!!$ - pot_term*f3) & |
1066 |
> |
!!$ + 2.0d0*ct_i*ct_j*zhat*(ct_i*uz_j(3)+ct_j*uz_i(3))*f3 & |
1067 |
> |
!!$ + (ct_i * ct_j)*f4 ) |
1068 |
> |
|
1069 |
> |
dudx = dudx + sw*pref * ( ri4*scale*( & |
1070 |
> |
15.0d0*(ct_i * ct_j * sc2)*xhat*f134 - & |
1071 |
> |
3.0d0*(ct_i*uz_j(1) + ct_j*uz_i(1) + ct_ij*xhat)*f134) ) |
1072 |
> |
dudy = dudy + sw*pref * ( ri4*scale*( & |
1073 |
> |
15.0d0*(ct_i * ct_j * sc2)*yhat*f134 - & |
1074 |
> |
3.0d0*(ct_i*uz_j(2) + ct_j*uz_i(2) + ct_ij*yhat)*f134) ) |
1075 |
> |
dudz = dudz + sw*pref * ( ri4*scale*( & |
1076 |
> |
15.0d0*(ct_i * ct_j * sc2)*zhat*f134 - & |
1077 |
> |
3.0d0*(ct_i*uz_j(3) + ct_j*uz_i(3) + ct_ij*zhat)*f134) ) |
1078 |
|
|
1079 |
< |
dudx = dudx + pref*3.0d0*ri4*scale & |
1080 |
< |
*(a1*xhat-ct_i*uz_j(1)-ct_j*uz_i(1)) |
1081 |
< |
dudy = dudy + pref*3.0d0*ri4*scale & |
1082 |
< |
*(a1*yhat-ct_i*uz_j(2)-ct_j*uz_i(2)) |
1083 |
< |
dudz = dudz + pref*3.0d0*ri4*scale & |
1084 |
< |
*(a1*zhat-ct_i*uz_j(3)-ct_j*uz_i(3)) |
1079 |
> |
duduz_i(1) = duduz_i(1) + sw*pref * & |
1080 |
> |
( ri3*(uz_j(1) - 3.0d0*ct_j*xhat*sc2)*f1 + (ct_j*xhat)*f2 ) |
1081 |
> |
duduz_i(2) = duduz_i(2) + sw*pref * & |
1082 |
> |
( ri3*(uz_j(2) - 3.0d0*ct_j*yhat*sc2)*f1 + (ct_j*yhat)*f2 ) |
1083 |
> |
duduz_i(3) = duduz_i(3) + sw*pref * & |
1084 |
> |
( ri3*(uz_j(3) - 3.0d0*ct_j*zhat*sc2)*f1 + (ct_j*zhat)*f2 ) |
1085 |
|
|
1086 |
< |
duduz_i(1) = duduz_i(1) + pref*ri3 & |
1087 |
< |
*(uz_j(1) - 3.0d0*ct_j*xhat*sc2) |
1088 |
< |
duduz_i(2) = duduz_i(2) + pref*ri3 & |
1089 |
< |
*(uz_j(2) - 3.0d0*ct_j*yhat*sc2) |
1090 |
< |
duduz_i(3) = duduz_i(3) + pref*ri3 & |
1091 |
< |
*(uz_j(3) - 3.0d0*ct_j*zhat*sc2) |
945 |
< |
|
946 |
< |
duduz_j(1) = duduz_j(1) + pref*ri3 & |
947 |
< |
*(uz_i(1) - 3.0d0*ct_i*xhat*sc2) |
948 |
< |
duduz_j(2) = duduz_j(2) + pref*ri3 & |
949 |
< |
*(uz_i(2) - 3.0d0*ct_i*yhat*sc2) |
950 |
< |
duduz_j(3) = duduz_j(3) + pref*ri3 & |
951 |
< |
*(uz_i(3) - 3.0d0*ct_i*zhat*sc2) |
1086 |
> |
duduz_j(1) = duduz_j(1) + sw*pref * & |
1087 |
> |
( ri3*(uz_i(1) - 3.0d0*ct_i*xhat*sc2)*f1 + (ct_i*xhat)*f2 ) |
1088 |
> |
duduz_j(2) = duduz_j(2) + sw*pref * & |
1089 |
> |
( ri3*(uz_i(2) - 3.0d0*ct_i*yhat*sc2)*f1 + (ct_i*yhat)*f2 ) |
1090 |
> |
duduz_j(3) = duduz_j(3) + sw*pref * & |
1091 |
> |
( ri3*(uz_i(3) - 3.0d0*ct_i*zhat*sc2)*f1 + (ct_i*zhat)*f2 ) |
1092 |
|
endif |
1093 |
|
endif |
1094 |
|
endif |
1095 |
|
|
1096 |
|
if (i_is_Quadrupole) then |
1097 |
|
if (j_is_Charge) then |
1098 |
+ |
if (screeningMethod .eq. DAMPED) then |
1099 |
+ |
call lookupUniformSpline1d(f0spline, rij, f0, df0) |
1100 |
+ |
!!$ f0 = derfc(dampingAlpha*rij) |
1101 |
+ |
!!$ varEXP = exp(-alpha2*rij*rij) |
1102 |
+ |
!!$ f1 = alphaPi*rij*varEXP + f0 |
1103 |
+ |
!!$ f2 = alphaPi*2.0d0*alpha2*varEXP |
1104 |
+ |
f1 = -rij * df0 + f0 |
1105 |
+ |
f2 = -2.0d0*alpha2*df0 |
1106 |
+ |
f3 = f2*rij*rij*rij |
1107 |
+ |
f4 = 2.0d0*alpha2*f2*rij |
1108 |
+ |
endif |
1109 |
|
|
1110 |
|
ri2 = riji * riji |
1111 |
|
ri3 = ri2 * riji |
1114 |
|
cy2 = cy_i * cy_i |
1115 |
|
cz2 = cz_i * cz_i |
1116 |
|
|
1117 |
< |
pref = sw * pre14 * q_j / 3.0_dp |
1118 |
< |
|
1119 |
< |
if (summationMethod .eq. 1) then |
1120 |
< |
vterm1 = pref * ri3*( qxx_i * (3.0_dp*cx2 - 1.0_dp) + & |
1121 |
< |
qyy_i * (3.0_dp*cy2 - 1.0_dp) + & |
1122 |
< |
qzz_i * (3.0_dp*cz2 - 1.0_dp) ) |
1123 |
< |
vterm2 = pref * rcuti3*( qxx_i * (3.0_dp*cx2 - 1.0_dp) + & |
1124 |
< |
qyy_i * (3.0_dp*cy2 - 1.0_dp) + & |
1125 |
< |
qzz_i * (3.0_dp*cz2 - 1.0_dp) ) |
1126 |
< |
vpair = vpair + swi * ( vterm1 - vterm2 ) |
1127 |
< |
epot = epot + ( vterm1 - vterm2 ) |
1128 |
< |
|
1129 |
< |
dudx = dudx - (5.0_dp*(vterm1*riji*xhat - vterm2*rcuti2*d(1))) + & |
1130 |
< |
pref * ( (ri4 - rcuti4)*(qxx_i*(6.0_dp*cx_i*ux_i(1)) - & |
1131 |
< |
qxx_i*2.0_dp*(xhat - rcuti*d(1))) + & |
1132 |
< |
(ri4 - rcuti4)*(qyy_i*(6.0_dp*cy_i*uy_i(1)) - & |
1133 |
< |
qyy_i*2.0_dp*(xhat - rcuti*d(1))) + & |
1134 |
< |
(ri4 - rcuti4)*(qzz_i*(6.0_dp*cz_i*uz_i(1)) - & |
1135 |
< |
qzz_i*2.0_dp*(xhat - rcuti*d(1))) ) |
1136 |
< |
dudy = dudy - (5.0_dp*(vterm1*riji*yhat - vterm2*rcuti2*d(2))) + & |
1137 |
< |
pref * ( (ri4 - rcuti4)*(qxx_i*(6.0_dp*cx_i*ux_i(2)) - & |
1138 |
< |
qxx_i*2.0_dp*(yhat - rcuti*d(2))) + & |
1139 |
< |
(ri4 - rcuti4)*(qyy_i*(6.0_dp*cy_i*uy_i(2)) - & |
1140 |
< |
qyy_i*2.0_dp*(yhat - rcuti*d(2))) + & |
1141 |
< |
(ri4 - rcuti4)*(qzz_i*(6.0_dp*cz_i*uz_i(2)) - & |
1142 |
< |
qzz_i*2.0_dp*(yhat - rcuti*d(2))) ) |
1143 |
< |
dudz = dudz - (5.0_dp*(vterm1*riji*zhat - vterm2*rcuti2*d(3))) + & |
1144 |
< |
pref * ( (ri4 - rcuti4)*(qxx_i*(6.0_dp*cx_i*ux_i(3)) - & |
1145 |
< |
qxx_i*2.0_dp*(zhat - rcuti*d(3))) + & |
1146 |
< |
(ri4 - rcuti4)*(qyy_i*(6.0_dp*cy_i*uy_i(3)) - & |
1147 |
< |
qyy_i*2.0_dp*(zhat - rcuti*d(3))) + & |
1148 |
< |
(ri4 - rcuti4)*(qzz_i*(6.0_dp*cz_i*uz_i(3)) - & |
1149 |
< |
qzz_i*2.0_dp*(zhat - rcuti*d(3))) ) |
1150 |
< |
|
1151 |
< |
dudux_i(1) = dudux_i(1) + pref * (ri3*(qxx_i*6.0_dp*cx_i*xhat) - & |
1152 |
< |
rcuti4*(qxx_i*6.0_dp*cx_i*d(1))) |
1153 |
< |
dudux_i(2) = dudux_i(2) + pref * (ri3*(qxx_i*6.0_dp*cx_i*yhat) - & |
1154 |
< |
rcuti4*(qxx_i*6.0_dp*cx_i*d(2))) |
1155 |
< |
dudux_i(3) = dudux_i(3) + pref * (ri3*(qxx_i*6.0_dp*cx_i*zhat) - & |
1156 |
< |
rcuti4*(qxx_i*6.0_dp*cx_i*d(3))) |
1157 |
< |
|
1158 |
< |
duduy_i(1) = duduy_i(1) + pref * (ri3*(qyy_i*6.0_dp*cy_i*xhat) - & |
1159 |
< |
rcuti4*(qyy_i*6.0_dp*cx_i*d(1))) |
1160 |
< |
duduy_i(2) = duduy_i(2) + pref * (ri3*(qyy_i*6.0_dp*cy_i*yhat) - & |
1161 |
< |
rcuti4*(qyy_i*6.0_dp*cx_i*d(2))) |
1162 |
< |
duduy_i(3) = duduy_i(3) + pref * (ri3*(qyy_i*6.0_dp*cy_i*zhat) - & |
1163 |
< |
rcuti4*(qyy_i*6.0_dp*cx_i*d(3))) |
1013 |
< |
|
1014 |
< |
duduz_i(1) = duduz_i(1) + pref * (ri3*(qzz_i*6.0_dp*cz_i*xhat) - & |
1015 |
< |
rcuti4*(qzz_i*6.0_dp*cx_i*d(1))) |
1016 |
< |
duduz_i(2) = duduz_i(2) + pref * (ri3*(qzz_i*6.0_dp*cz_i*yhat) - & |
1017 |
< |
rcuti4*(qzz_i*6.0_dp*cx_i*d(2))) |
1018 |
< |
duduz_i(3) = duduz_i(3) + pref * (ri3*(qzz_i*6.0_dp*cz_i*zhat) - & |
1019 |
< |
rcuti4*(qzz_i*6.0_dp*cx_i*d(3))) |
1117 |
> |
pref = pre14 * q_j / 3.0d0 |
1118 |
> |
pot_term = ri3 * (qxx_i * (3.0d0*cx2 - 1.0d0) + & |
1119 |
> |
qyy_i * (3.0d0*cy2 - 1.0d0) + & |
1120 |
> |
qzz_i * (3.0d0*cz2 - 1.0d0)) |
1121 |
> |
vterm = pref * (pot_term*f1 + (qxx_i*cx2 + qyy_i*cy2 + qzz_i*cz2)*f2) |
1122 |
> |
vpair = vpair + vterm |
1123 |
> |
epot = epot + sw*vterm |
1124 |
> |
|
1125 |
> |
dudx = dudx - sw*pref*pot_term*riji*xhat*(5.0d0*f1 + f3) + & |
1126 |
> |
sw*pref*ri4 * ( & |
1127 |
> |
qxx_i*(2.0d0*cx_i*ux_i(1)*(3.0d0*f1 + f3) - 2.0d0*xhat*f1) + & |
1128 |
> |
qyy_i*(2.0d0*cy_i*uy_i(1)*(3.0d0*f1 + f3) - 2.0d0*xhat*f1) + & |
1129 |
> |
qzz_i*(2.0d0*cz_i*uz_i(1)*(3.0d0*f1 + f3) - 2.0d0*xhat*f1) ) & |
1130 |
> |
+ (qxx_i*cx2 + qyy_i*cy2 + qzz_i*cz2)*f4 |
1131 |
> |
dudy = dudy - sw*pref*pot_term*riji*yhat*(5.0d0*f1 + f3) + & |
1132 |
> |
sw*pref*ri4 * ( & |
1133 |
> |
qxx_i*(2.0d0*cx_i*ux_i(2)*(3.0d0*f1 + f3) - 2.0d0*yhat*f1) + & |
1134 |
> |
qyy_i*(2.0d0*cy_i*uy_i(2)*(3.0d0*f1 + f3) - 2.0d0*yhat*f1) + & |
1135 |
> |
qzz_i*(2.0d0*cz_i*uz_i(2)*(3.0d0*f1 + f3) - 2.0d0*yhat*f1) ) & |
1136 |
> |
+ (qxx_i*cx2 + qyy_i*cy2 + qzz_i*cz2)*f4 |
1137 |
> |
dudz = dudz - sw*pref*pot_term*riji*zhat*(5.0d0*f1 + f3) + & |
1138 |
> |
sw*pref*ri4 * ( & |
1139 |
> |
qxx_i*(2.0d0*cx_i*ux_i(3)*(3.0d0*f1 + f3) - 2.0d0*zhat*f1) + & |
1140 |
> |
qyy_i*(2.0d0*cy_i*uy_i(3)*(3.0d0*f1 + f3) - 2.0d0*zhat*f1) + & |
1141 |
> |
qzz_i*(2.0d0*cz_i*uz_i(3)*(3.0d0*f1 + f3) - 2.0d0*zhat*f1) ) & |
1142 |
> |
+ (qxx_i*cx2 + qyy_i*cy2 + qzz_i*cz2)*f4 |
1143 |
> |
|
1144 |
> |
dudux_i(1) = dudux_i(1) + sw*pref*( ri3*(qxx_i*2.0d0*cx_i*xhat) & |
1145 |
> |
* (3.0d0*f1 + f3) ) |
1146 |
> |
dudux_i(2) = dudux_i(2) + sw*pref*( ri3*(qxx_i*2.0d0*cx_i*yhat) & |
1147 |
> |
* (3.0d0*f1 + f3) ) |
1148 |
> |
dudux_i(3) = dudux_i(3) + sw*pref*( ri3*(qxx_i*2.0d0*cx_i*zhat) & |
1149 |
> |
* (3.0d0*f1 + f3) ) |
1150 |
> |
|
1151 |
> |
duduy_i(1) = duduy_i(1) + sw*pref*( ri3*(qyy_i*2.0d0*cy_i*xhat) & |
1152 |
> |
* (3.0d0*f1 + f3) ) |
1153 |
> |
duduy_i(2) = duduy_i(2) + sw*pref*( ri3*(qyy_i*2.0d0*cy_i*yhat) & |
1154 |
> |
* (3.0d0*f1 + f3) ) |
1155 |
> |
duduy_i(3) = duduy_i(3) + sw*pref*( ri3*(qyy_i*2.0d0*cy_i*zhat) & |
1156 |
> |
* (3.0d0*f1 + f3) ) |
1157 |
> |
|
1158 |
> |
duduz_i(1) = duduz_i(1) + sw*pref*( ri3*(qzz_i*2.0d0*cz_i*xhat) & |
1159 |
> |
* (3.0d0*f1 + f3) ) |
1160 |
> |
duduz_i(2) = duduz_i(2) + sw*pref*( ri3*(qzz_i*2.0d0*cz_i*yhat) & |
1161 |
> |
* (3.0d0*f1 + f3) ) |
1162 |
> |
duduz_i(3) = duduz_i(3) + sw*pref*( ri3*(qzz_i*2.0d0*cz_i*zhat) & |
1163 |
> |
* (3.0d0*f1 + f3) ) |
1164 |
|
|
1021 |
– |
else |
1022 |
– |
vterm = pref * ri3 * (qxx_i * (3.0_dp*cx2 - 1.0_dp) + & |
1023 |
– |
qyy_i * (3.0_dp*cy2 - 1.0_dp) + & |
1024 |
– |
qzz_i * (3.0_dp*cz2 - 1.0_dp)) |
1025 |
– |
vpair = vpair + swi * vterm |
1026 |
– |
epot = epot + vterm |
1027 |
– |
|
1028 |
– |
dudx = dudx - 5.0_dp*vterm*riji*xhat + pref * ri4 * ( & |
1029 |
– |
qxx_i*(6.0_dp*cx_i*ux_i(1) - 2.0_dp*xhat) + & |
1030 |
– |
qyy_i*(6.0_dp*cy_i*uy_i(1) - 2.0_dp*xhat) + & |
1031 |
– |
qzz_i*(6.0_dp*cz_i*uz_i(1) - 2.0_dp*xhat) ) |
1032 |
– |
dudy = dudy - 5.0_dp*vterm*riji*yhat + pref * ri4 * ( & |
1033 |
– |
qxx_i*(6.0_dp*cx_i*ux_i(2) - 2.0_dp*yhat) + & |
1034 |
– |
qyy_i*(6.0_dp*cy_i*uy_i(2) - 2.0_dp*yhat) + & |
1035 |
– |
qzz_i*(6.0_dp*cz_i*uz_i(2) - 2.0_dp*yhat) ) |
1036 |
– |
dudz = dudz - 5.0_dp*vterm*riji*zhat + pref * ri4 * ( & |
1037 |
– |
qxx_i*(6.0_dp*cx_i*ux_i(3) - 2.0_dp*zhat) + & |
1038 |
– |
qyy_i*(6.0_dp*cy_i*uy_i(3) - 2.0_dp*zhat) + & |
1039 |
– |
qzz_i*(6.0_dp*cz_i*uz_i(3) - 2.0_dp*zhat) ) |
1040 |
– |
|
1041 |
– |
dudux_i(1) = dudux_i(1) + pref * ri3*(qxx_i*6.0_dp*cx_i*xhat) |
1042 |
– |
dudux_i(2) = dudux_i(2) + pref * ri3*(qxx_i*6.0_dp*cx_i*yhat) |
1043 |
– |
dudux_i(3) = dudux_i(3) + pref * ri3*(qxx_i*6.0_dp*cx_i*zhat) |
1044 |
– |
|
1045 |
– |
duduy_i(1) = duduy_i(1) + pref * ri3*(qyy_i*6.0_dp*cy_i*xhat) |
1046 |
– |
duduy_i(2) = duduy_i(2) + pref * ri3*(qyy_i*6.0_dp*cy_i*yhat) |
1047 |
– |
duduy_i(3) = duduy_i(3) + pref * ri3*(qyy_i*6.0_dp*cy_i*zhat) |
1048 |
– |
|
1049 |
– |
duduz_i(1) = duduz_i(1) + pref * ri3*(qzz_i*6.0_dp*cz_i*xhat) |
1050 |
– |
duduz_i(2) = duduz_i(2) + pref * ri3*(qzz_i*6.0_dp*cz_i*yhat) |
1051 |
– |
duduz_i(3) = duduz_i(3) + pref * ri3*(qzz_i*6.0_dp*cz_i*zhat) |
1052 |
– |
endif |
1165 |
|
endif |
1166 |
|
endif |
1167 |
|
|
1168 |
|
|
1169 |
|
if (do_pot) then |
1170 |
|
#ifdef IS_MPI |
1171 |
< |
pot_row(atom1) = pot_row(atom1) + 0.5d0*epot |
1172 |
< |
pot_col(atom2) = pot_col(atom2) + 0.5d0*epot |
1171 |
> |
pot_row(ELECTROSTATIC_POT,atom1) = pot_row(ELECTROSTATIC_POT,atom1) + 0.5d0*epot |
1172 |
> |
pot_col(ELECTROSTATIC_POT,atom2) = pot_col(ELECTROSTATIC_POT,atom2) + 0.5d0*epot |
1173 |
|
#else |
1174 |
|
pot = pot + epot |
1175 |
|
#endif |
1274 |
|
return |
1275 |
|
end subroutine doElectrostaticPair |
1276 |
|
|
1277 |
< |
!! calculates the switching functions and their derivatives for a given |
1166 |
< |
subroutine calc_switch(r, mu, scale, dscale) |
1277 |
> |
subroutine destroyElectrostaticTypes() |
1278 |
|
|
1279 |
< |
real (kind=dp), intent(in) :: r, mu |
1169 |
< |
real (kind=dp), intent(inout) :: scale, dscale |
1170 |
< |
real (kind=dp) :: rl, ru, mulow, minRatio, temp, scaleVal |
1279 |
> |
if(allocated(ElectrostaticMap)) deallocate(ElectrostaticMap) |
1280 |
|
|
1281 |
< |
! distances must be in angstroms |
1282 |
< |
rl = 2.75d0 |
1283 |
< |
ru = 3.75d0 |
1284 |
< |
mulow = 0.0d0 !3.3856d0 ! 1.84 * 1.84 |
1285 |
< |
minRatio = mulow / (mu*mu) |
1286 |
< |
scaleVal = 1.0d0 - minRatio |
1281 |
> |
end subroutine destroyElectrostaticTypes |
1282 |
> |
|
1283 |
> |
subroutine self_self(atom1, eFrame, mypot, t, do_pot) |
1284 |
> |
logical, intent(in) :: do_pot |
1285 |
> |
integer, intent(in) :: atom1 |
1286 |
> |
integer :: atid1 |
1287 |
> |
real(kind=dp), dimension(9,nLocal) :: eFrame |
1288 |
> |
real(kind=dp), dimension(3,nLocal) :: t |
1289 |
> |
real(kind=dp) :: mu1, c1 |
1290 |
> |
real(kind=dp) :: preVal, epot, mypot |
1291 |
> |
real(kind=dp) :: eix, eiy, eiz |
1292 |
> |
|
1293 |
> |
! this is a local only array, so we use the local atom type id's: |
1294 |
> |
atid1 = atid(atom1) |
1295 |
> |
|
1296 |
> |
if (.not.summationMethodChecked) then |
1297 |
> |
call checkSummationMethod() |
1298 |
> |
endif |
1299 |
|
|
1300 |
< |
if (r.lt.rl) then |
1301 |
< |
scale = minRatio |
1302 |
< |
dscale = 0.0d0 |
1303 |
< |
elseif (r.gt.ru) then |
1304 |
< |
scale = 1.0d0 |
1305 |
< |
dscale = 0.0d0 |
1306 |
< |
else |
1307 |
< |
scale = 1.0d0 - scaleVal*((ru + 2.0d0*r - 3.0d0*rl) * (ru-r)**2) & |
1308 |
< |
/ ((ru - rl)**3) |
1309 |
< |
dscale = -scaleVal * 6.0d0 * (r-ru)*(r-rl)/((ru - rl)**3) |
1300 |
> |
if (summationMethod .eq. REACTION_FIELD) then |
1301 |
> |
if (ElectrostaticMap(atid1)%is_Dipole) then |
1302 |
> |
mu1 = getDipoleMoment(atid1) |
1303 |
> |
|
1304 |
> |
preVal = pre22 * preRF2 * mu1*mu1 |
1305 |
> |
mypot = mypot - 0.5d0*preVal |
1306 |
> |
|
1307 |
> |
! The self-correction term adds into the reaction field vector |
1308 |
> |
|
1309 |
> |
eix = preVal * eFrame(3,atom1) |
1310 |
> |
eiy = preVal * eFrame(6,atom1) |
1311 |
> |
eiz = preVal * eFrame(9,atom1) |
1312 |
> |
|
1313 |
> |
! once again, this is self-self, so only the local arrays are needed |
1314 |
> |
! even for MPI jobs: |
1315 |
> |
|
1316 |
> |
t(1,atom1)=t(1,atom1) - eFrame(6,atom1)*eiz + & |
1317 |
> |
eFrame(9,atom1)*eiy |
1318 |
> |
t(2,atom1)=t(2,atom1) - eFrame(9,atom1)*eix + & |
1319 |
> |
eFrame(3,atom1)*eiz |
1320 |
> |
t(3,atom1)=t(3,atom1) - eFrame(3,atom1)*eiy + & |
1321 |
> |
eFrame(6,atom1)*eix |
1322 |
> |
|
1323 |
> |
endif |
1324 |
> |
|
1325 |
> |
elseif ( (summationMethod .eq. SHIFTED_FORCE) .or. & |
1326 |
> |
(summationMethod .eq. SHIFTED_POTENTIAL) ) then |
1327 |
> |
if (ElectrostaticMap(atid1)%is_Charge) then |
1328 |
> |
c1 = getCharge(atid1) |
1329 |
> |
|
1330 |
> |
if (screeningMethod .eq. DAMPED) then |
1331 |
> |
mypot = mypot - (f0c * rcuti * 0.5d0 + & |
1332 |
> |
dampingAlpha*invRootPi) * c1 * c1 |
1333 |
> |
|
1334 |
> |
else |
1335 |
> |
mypot = mypot - (rcuti * 0.5d0 * c1 * c1) |
1336 |
> |
|
1337 |
> |
endif |
1338 |
> |
endif |
1339 |
|
endif |
1340 |
< |
|
1340 |
> |
|
1341 |
|
return |
1342 |
< |
end subroutine calc_switch |
1342 |
> |
end subroutine self_self |
1343 |
|
|
1344 |
< |
subroutine destroyElectrostaticTypes() |
1345 |
< |
|
1346 |
< |
if(allocated(ElectrostaticMap)) deallocate(ElectrostaticMap) |
1344 |
> |
subroutine rf_self_excludes(atom1, atom2, sw, eFrame, d, rij, vpair, myPot, & |
1345 |
> |
f, t, do_pot) |
1346 |
> |
logical, intent(in) :: do_pot |
1347 |
> |
integer, intent(in) :: atom1 |
1348 |
> |
integer, intent(in) :: atom2 |
1349 |
> |
logical :: i_is_Charge, j_is_Charge |
1350 |
> |
logical :: i_is_Dipole, j_is_Dipole |
1351 |
> |
integer :: atid1 |
1352 |
> |
integer :: atid2 |
1353 |
> |
real(kind=dp), intent(in) :: rij |
1354 |
> |
real(kind=dp), intent(in) :: sw |
1355 |
> |
real(kind=dp), intent(in), dimension(3) :: d |
1356 |
> |
real(kind=dp), intent(inout) :: vpair |
1357 |
> |
real(kind=dp), dimension(9,nLocal) :: eFrame |
1358 |
> |
real(kind=dp), dimension(3,nLocal) :: f |
1359 |
> |
real(kind=dp), dimension(3,nLocal) :: t |
1360 |
> |
real (kind = dp), dimension(3) :: duduz_i |
1361 |
> |
real (kind = dp), dimension(3) :: duduz_j |
1362 |
> |
real (kind = dp), dimension(3) :: uz_i |
1363 |
> |
real (kind = dp), dimension(3) :: uz_j |
1364 |
> |
real(kind=dp) :: q_i, q_j, mu_i, mu_j |
1365 |
> |
real(kind=dp) :: xhat, yhat, zhat |
1366 |
> |
real(kind=dp) :: ct_i, ct_j |
1367 |
> |
real(kind=dp) :: ri2, ri3, riji, vterm |
1368 |
> |
real(kind=dp) :: pref, preVal, rfVal, myPot |
1369 |
> |
real(kind=dp) :: dudx, dudy, dudz, dudr |
1370 |
|
|
1371 |
< |
end subroutine destroyElectrostaticTypes |
1371 |
> |
if (.not.summationMethodChecked) then |
1372 |
> |
call checkSummationMethod() |
1373 |
> |
endif |
1374 |
|
|
1375 |
+ |
dudx = zero |
1376 |
+ |
dudy = zero |
1377 |
+ |
dudz = zero |
1378 |
+ |
|
1379 |
+ |
riji = 1.0d0/rij |
1380 |
+ |
|
1381 |
+ |
xhat = d(1) * riji |
1382 |
+ |
yhat = d(2) * riji |
1383 |
+ |
zhat = d(3) * riji |
1384 |
+ |
|
1385 |
+ |
! this is a local only array, so we use the local atom type id's: |
1386 |
+ |
atid1 = atid(atom1) |
1387 |
+ |
atid2 = atid(atom2) |
1388 |
+ |
i_is_Charge = ElectrostaticMap(atid1)%is_Charge |
1389 |
+ |
j_is_Charge = ElectrostaticMap(atid2)%is_Charge |
1390 |
+ |
i_is_Dipole = ElectrostaticMap(atid1)%is_Dipole |
1391 |
+ |
j_is_Dipole = ElectrostaticMap(atid2)%is_Dipole |
1392 |
+ |
|
1393 |
+ |
if (i_is_Charge.and.j_is_Charge) then |
1394 |
+ |
q_i = ElectrostaticMap(atid1)%charge |
1395 |
+ |
q_j = ElectrostaticMap(atid2)%charge |
1396 |
+ |
|
1397 |
+ |
preVal = pre11 * q_i * q_j |
1398 |
+ |
rfVal = preRF*rij*rij |
1399 |
+ |
vterm = preVal * rfVal |
1400 |
+ |
|
1401 |
+ |
myPot = myPot + sw*vterm |
1402 |
+ |
|
1403 |
+ |
dudr = sw*preVal * 2.0d0*rfVal*riji |
1404 |
+ |
|
1405 |
+ |
dudx = dudx + dudr * xhat |
1406 |
+ |
dudy = dudy + dudr * yhat |
1407 |
+ |
dudz = dudz + dudr * zhat |
1408 |
+ |
|
1409 |
+ |
elseif (i_is_Charge.and.j_is_Dipole) then |
1410 |
+ |
q_i = ElectrostaticMap(atid1)%charge |
1411 |
+ |
mu_j = ElectrostaticMap(atid2)%dipole_moment |
1412 |
+ |
uz_j(1) = eFrame(3,atom2) |
1413 |
+ |
uz_j(2) = eFrame(6,atom2) |
1414 |
+ |
uz_j(3) = eFrame(9,atom2) |
1415 |
+ |
ct_j = uz_j(1)*xhat + uz_j(2)*yhat + uz_j(3)*zhat |
1416 |
+ |
|
1417 |
+ |
ri2 = riji * riji |
1418 |
+ |
ri3 = ri2 * riji |
1419 |
+ |
|
1420 |
+ |
pref = pre12 * q_i * mu_j |
1421 |
+ |
vterm = - pref * ct_j * ( ri2 - preRF2*rij ) |
1422 |
+ |
myPot = myPot + sw*vterm |
1423 |
+ |
|
1424 |
+ |
dudx = dudx - sw*pref*( ri3*(uz_j(1)-3.0d0*ct_j*xhat) & |
1425 |
+ |
- preRF2*uz_j(1) ) |
1426 |
+ |
dudy = dudy - sw*pref*( ri3*(uz_j(2)-3.0d0*ct_j*yhat) & |
1427 |
+ |
- preRF2*uz_j(2) ) |
1428 |
+ |
dudz = dudz - sw*pref*( ri3*(uz_j(3)-3.0d0*ct_j*zhat) & |
1429 |
+ |
- preRF2*uz_j(3) ) |
1430 |
+ |
|
1431 |
+ |
duduz_j(1) = duduz_j(1) - sw * pref * xhat * ( ri2 - preRF2*rij ) |
1432 |
+ |
duduz_j(2) = duduz_j(2) - sw * pref * yhat * ( ri2 - preRF2*rij ) |
1433 |
+ |
duduz_j(3) = duduz_j(3) - sw * pref * zhat * ( ri2 - preRF2*rij ) |
1434 |
+ |
|
1435 |
+ |
elseif (i_is_Dipole.and.j_is_Charge) then |
1436 |
+ |
mu_i = ElectrostaticMap(atid1)%dipole_moment |
1437 |
+ |
q_j = ElectrostaticMap(atid2)%charge |
1438 |
+ |
uz_i(1) = eFrame(3,atom1) |
1439 |
+ |
uz_i(2) = eFrame(6,atom1) |
1440 |
+ |
uz_i(3) = eFrame(9,atom1) |
1441 |
+ |
ct_i = uz_i(1)*xhat + uz_i(2)*yhat + uz_i(3)*zhat |
1442 |
+ |
|
1443 |
+ |
ri2 = riji * riji |
1444 |
+ |
ri3 = ri2 * riji |
1445 |
+ |
|
1446 |
+ |
pref = pre12 * q_j * mu_i |
1447 |
+ |
vterm = pref * ct_i * ( ri2 - preRF2*rij ) |
1448 |
+ |
myPot = myPot + sw*vterm |
1449 |
+ |
|
1450 |
+ |
dudx = dudx + sw*pref*( ri3*(uz_i(1)-3.0d0*ct_i*xhat) & |
1451 |
+ |
- preRF2*uz_i(1) ) |
1452 |
+ |
dudy = dudy + sw*pref*( ri3*(uz_i(2)-3.0d0*ct_i*yhat) & |
1453 |
+ |
- preRF2*uz_i(2) ) |
1454 |
+ |
dudz = dudz + sw*pref*( ri3*(uz_i(3)-3.0d0*ct_i*zhat) & |
1455 |
+ |
- preRF2*uz_i(3) ) |
1456 |
+ |
|
1457 |
+ |
duduz_i(1) = duduz_i(1) + sw * pref * xhat * ( ri2 - preRF2*rij ) |
1458 |
+ |
duduz_i(2) = duduz_i(2) + sw * pref * yhat * ( ri2 - preRF2*rij ) |
1459 |
+ |
duduz_i(3) = duduz_i(3) + sw * pref * zhat * ( ri2 - preRF2*rij ) |
1460 |
+ |
|
1461 |
+ |
endif |
1462 |
+ |
|
1463 |
+ |
|
1464 |
+ |
! accumulate the forces and torques resulting from the self term |
1465 |
+ |
f(1,atom1) = f(1,atom1) + dudx |
1466 |
+ |
f(2,atom1) = f(2,atom1) + dudy |
1467 |
+ |
f(3,atom1) = f(3,atom1) + dudz |
1468 |
+ |
|
1469 |
+ |
f(1,atom2) = f(1,atom2) - dudx |
1470 |
+ |
f(2,atom2) = f(2,atom2) - dudy |
1471 |
+ |
f(3,atom2) = f(3,atom2) - dudz |
1472 |
+ |
|
1473 |
+ |
if (i_is_Dipole) then |
1474 |
+ |
t(1,atom1)=t(1,atom1) - uz_i(2)*duduz_i(3) + uz_i(3)*duduz_i(2) |
1475 |
+ |
t(2,atom1)=t(2,atom1) - uz_i(3)*duduz_i(1) + uz_i(1)*duduz_i(3) |
1476 |
+ |
t(3,atom1)=t(3,atom1) - uz_i(1)*duduz_i(2) + uz_i(2)*duduz_i(1) |
1477 |
+ |
elseif (j_is_Dipole) then |
1478 |
+ |
t(1,atom2)=t(1,atom2) - uz_j(2)*duduz_j(3) + uz_j(3)*duduz_j(2) |
1479 |
+ |
t(2,atom2)=t(2,atom2) - uz_j(3)*duduz_j(1) + uz_j(1)*duduz_j(3) |
1480 |
+ |
t(3,atom2)=t(3,atom2) - uz_j(1)*duduz_j(2) + uz_j(2)*duduz_j(1) |
1481 |
+ |
endif |
1482 |
+ |
|
1483 |
+ |
return |
1484 |
+ |
end subroutine rf_self_excludes |
1485 |
+ |
|
1486 |
|
end module electrostatic_module |