15 |
|
logical, save :: EAM_FF_initialized = .false. |
16 |
|
integer, save :: EAM_Mixing_Policy |
17 |
|
real(kind = dp), save :: EAM_rcut |
18 |
< |
real(kind = dp), save :: EAM_rcut_orig |
18 |
> |
logical, save :: haveRcut = .false. |
19 |
|
|
20 |
|
character(len = statusMsgSize) :: errMesg |
21 |
|
integer :: eam_err |
51 |
|
|
52 |
|
|
53 |
|
!! Arrays for derivatives used in force calculation |
54 |
< |
real( kind = dp), dimension(:), allocatable :: frho |
55 |
< |
real( kind = dp), dimension(:), allocatable :: rho |
54 |
> |
real( kind = dp),save, dimension(:), allocatable :: frho |
55 |
> |
real( kind = dp),save, dimension(:), allocatable :: rho |
56 |
|
|
57 |
< |
real( kind = dp), dimension(:), allocatable :: dfrhodrho |
58 |
< |
real( kind = dp), dimension(:), allocatable :: d2frhodrhodrho |
57 |
> |
real( kind = dp),save, dimension(:), allocatable :: dfrhodrho |
58 |
> |
real( kind = dp),save, dimension(:), allocatable :: d2frhodrhodrho |
59 |
|
|
60 |
|
|
61 |
|
!! Arrays for MPI storage |
62 |
|
#ifdef IS_MPI |
63 |
< |
real( kind = dp), dimension(:), allocatable :: dfrhodrho_col |
64 |
< |
real( kind = dp), dimension(:), allocatable :: dfrhodrho_row |
65 |
< |
real( kind = dp), dimension(:), allocatable :: frho_row |
66 |
< |
real( kind = dp), dimension(:), allocatable :: frho_col |
67 |
< |
real( kind = dp), dimension(:), allocatable :: rho_row |
68 |
< |
real( kind = dp), dimension(:), allocatable :: rho_col |
69 |
< |
real( kind = dp), dimension(:), allocatable :: d2frhodrhodrho_col |
70 |
< |
real( kind = dp), dimension(:), allocatable :: d2frhodrhodrho_row |
63 |
> |
real( kind = dp),save, dimension(:), allocatable :: dfrhodrho_col |
64 |
> |
real( kind = dp),save, dimension(:), allocatable :: dfrhodrho_row |
65 |
> |
real( kind = dp),save, dimension(:), allocatable :: frho_row |
66 |
> |
real( kind = dp),save, dimension(:), allocatable :: frho_col |
67 |
> |
real( kind = dp),save, dimension(:), allocatable :: rho_row |
68 |
> |
real( kind = dp),save, dimension(:), allocatable :: rho_col |
69 |
> |
real( kind = dp),save, dimension(:), allocatable :: d2frhodrhodrho_col |
70 |
> |
real( kind = dp),save, dimension(:), allocatable :: d2frhodrhodrho_row |
71 |
|
#endif |
72 |
|
|
73 |
|
type, private :: EAMTypeList |
84 |
|
|
85 |
|
|
86 |
|
public :: init_EAM_FF |
87 |
< |
! public :: EAM_new_rcut |
87 |
> |
public :: setCutoffEAM |
88 |
|
public :: do_eam_pair |
89 |
|
public :: newEAMtype |
90 |
|
public :: calc_eam_prepair_rho |
114 |
|
integer :: alloc_stat |
115 |
|
integer :: current |
116 |
|
integer,pointer :: Matchlist(:) => null() |
117 |
< |
type (EAMtype), pointer :: makeEamtype => null() |
117 |
> |
|
118 |
|
status = 0 |
119 |
|
|
120 |
+ |
|
121 |
|
!! Assume that atypes has already been set and get the total number of types in atypes |
122 |
|
!! Also assume that every member of atypes is a EAM model. |
123 |
|
|
133 |
|
current = EAMList%currentAddition |
134 |
|
|
135 |
|
|
136 |
< |
call allocate_EAMType(eam_nrho,eam_nr,makeEamtype,stat=alloc_stat) |
136 |
> |
call allocate_EAMType(eam_nrho,eam_nr,EAMList%EAMParams(current),stat=alloc_stat) |
137 |
|
if (alloc_stat /= 0) then |
138 |
|
status = -1 |
139 |
|
return |
140 |
|
end if |
140 |
– |
makeEamtype => EAMList%EAMParams(current) |
141 |
|
|
142 |
|
! this is a possible bug, we assume a correspondence between the vector atypes and |
143 |
|
! EAMAtypes |
147 |
|
EAMList%EAMParams(current)%eam_nrho = eam_nrho |
148 |
|
EAMList%EAMParams(current)%eam_drho = eam_drho |
149 |
|
EAMList%EAMParams(current)%eam_nr = eam_nr |
150 |
+ |
EAMList%EAMParams(current)%eam_dr = eam_dr |
151 |
|
EAMList%EAMParams(current)%eam_rcut = rcut |
152 |
|
EAMList%EAMParams(current)%eam_Z_r = eam_Z_r |
153 |
|
EAMList%EAMParams(current)%eam_rho_r = eam_rho_r |
164 |
|
integer :: alloc_stat |
165 |
|
integer :: number_r, number_rho |
166 |
|
|
167 |
+ |
if (EAMList%currentAddition == 0) then |
168 |
+ |
call handleError("init_EAM_FF","No members in EAMList") |
169 |
+ |
status = -1 |
170 |
+ |
return |
171 |
+ |
end if |
172 |
|
|
173 |
|
|
174 |
+ |
|
175 |
|
do i = 1, EAMList%currentAddition |
169 |
– |
|
170 |
– |
EAMList%EAMParams(i)%eam_rvals(1:EAMList%EAMParams(i)%eam_nr) = & |
171 |
– |
real(EAMList%EAMParams(i)%eam_nr,kind=dp)* & |
172 |
– |
EAMList%EAMParams(i)%eam_dr |
176 |
|
|
177 |
< |
EAMList%EAMParams(i)%eam_rhovals(1:EAMList%EAMParams(i)%eam_nrho) = & |
175 |
< |
real(EAMList%EAMParams(i)%eam_nrho,kind=dp)* & |
176 |
< |
EAMList%EAMParams(i)%eam_drho |
177 |
> |
! Build array of r values |
178 |
|
|
179 |
+ |
do j = 1,EAMList%EAMParams(i)%eam_nr |
180 |
+ |
EAMList%EAMParams(i)%eam_rvals(j) = & |
181 |
+ |
real(j-1,kind=dp)* & |
182 |
+ |
EAMList%EAMParams(i)%eam_dr |
183 |
+ |
end do |
184 |
+ |
! Build array of rho values |
185 |
+ |
do j = 1,EAMList%EAMParams(i)%eam_nrho |
186 |
+ |
EAMList%EAMParams(i)%eam_rhovals(j) = & |
187 |
+ |
real(j-1,kind=dp)* & |
188 |
+ |
EAMList%EAMParams(i)%eam_drho |
189 |
+ |
end do |
190 |
|
! convert from eV to kcal / mol: |
191 |
|
EAMList%EAMParams(i)%eam_F_rho = EAMList%EAMParams(i)%eam_F_rho * 23.06054E0_DP |
192 |
|
|
193 |
|
! precompute the pair potential and get it into kcal / mol: |
194 |
< |
EAMList%EAMParams(i)%eam_phi_r = 0.0E0_DP |
194 |
> |
EAMList%EAMParams(i)%eam_phi_r(1) = 0.0E0_DP |
195 |
|
do j = 2, EAMList%EAMParams(i)%eam_nr |
196 |
|
EAMList%EAMParams(i)%eam_phi_r(j) = (EAMList%EAMParams(i)%eam_Z_r(j)**2)/EAMList%EAMParams(i)%eam_rvals(j) |
197 |
|
EAMList%EAMParams(i)%eam_phi_r(j) = EAMList%EAMParams(i)%eam_phi_r(j)*331.999296E0_DP |
198 |
|
enddo |
199 |
|
end do |
200 |
+ |
|
201 |
|
|
202 |
|
do i = 1, EAMList%currentAddition |
203 |
|
number_r = EAMList%EAMParams(i)%eam_nr |
220 |
|
EAMList%EAMParams(i)%eam_phi_r_pp, & |
221 |
|
0.0E0_DP, 0.0E0_DP, 'N') |
222 |
|
enddo |
223 |
< |
|
224 |
< |
current_rcut_max = EAMList%EAMParams(1)%eam_rcut |
223 |
> |
|
224 |
> |
|
225 |
> |
! current_rcut_max = EAMList%EAMParams(1)%eam_rcut |
226 |
|
!! find the smallest rcut for any eam atype |
227 |
< |
do i = 2, EAMList%currentAddition |
228 |
< |
current_rcut_max = min(current_rcut_max,EAMList%EAMParams(i)%eam_rcut) |
229 |
< |
end do |
227 |
> |
! do i = 2, EAMList%currentAddition |
228 |
> |
! current_rcut_max =max(current_rcut_max,EAMList%EAMParams(i)%eam_rcut) |
229 |
> |
! end do |
230 |
|
|
231 |
< |
EAM_rcut = current_rcut_max |
232 |
< |
EAM_rcut_orig = current_rcut_max |
231 |
> |
! EAM_rcut = current_rcut_max |
232 |
> |
! EAM_rcut_orig = current_rcut_max |
233 |
|
! do i = 1, EAMList%currentAddition |
234 |
|
! EAMList%EAMParam(i)s%eam_atype_map(eam_atype(i)) = i |
235 |
|
! end do |
350 |
|
|
351 |
|
end subroutine allocateEAM |
352 |
|
|
353 |
+ |
!! C sets rcut to be the largest cutoff of any atype |
354 |
+ |
!! present in this simulation. Doesn't include all atypes |
355 |
+ |
!! sim knows about, just those in the simulation. |
356 |
+ |
subroutine setCutoffEAM(rcut, status) |
357 |
+ |
real(kind=dp) :: rcut |
358 |
+ |
integer :: status |
359 |
+ |
status = 0 |
360 |
|
|
361 |
< |
subroutine clean_EAM() |
361 |
> |
EAM_rcut = rcut |
362 |
|
|
363 |
< |
! clean non-IS_MPI first |
363 |
> |
end subroutine setCutoffEAM |
364 |
> |
|
365 |
> |
|
366 |
> |
|
367 |
> |
subroutine clean_EAM() |
368 |
> |
! clean non-IS_MPI first |
369 |
|
frho = 0.0_dp |
370 |
|
rho = 0.0_dp |
371 |
|
dfrhodrho = 0.0_dp |
385 |
|
subroutine allocate_EAMType(eam_n_rho,eam_n_r,thisEAMType,stat) |
386 |
|
integer, intent(in) :: eam_n_rho |
387 |
|
integer, intent(in) :: eam_n_r |
388 |
< |
type (EAMType), pointer :: thisEAMType |
388 |
> |
type (EAMType) :: thisEAMType |
389 |
|
integer, optional :: stat |
390 |
|
integer :: alloc_stat |
391 |
|
|
484 |
|
integer :: myid_atom2 |
485 |
|
|
486 |
|
! check to see if we need to be cleaned at the start of a force loop |
461 |
– |
if (cleanme) call clean_EAM |
462 |
– |
cleanme = .false. |
487 |
|
|
488 |
+ |
if (cleanme) then |
489 |
+ |
call clean_EAM |
490 |
+ |
cleanme = .false. |
491 |
+ |
end if |
492 |
+ |
|
493 |
|
|
494 |
+ |
|
495 |
+ |
|
496 |
|
#ifdef IS_MPI |
497 |
|
myid_atom1 = atid_Row(atom1) |
498 |
|
myid_atom2 = atid_Col(atom2) |
537 |
|
#endif |
538 |
|
endif |
539 |
|
|
540 |
+ |
|
541 |
+ |
|
542 |
|
end subroutine calc_eam_prepair_rho |
543 |
|
|
544 |
|
|
556 |
|
integer :: n_rho_points |
557 |
|
! reset clean forces to be true at top of calc rho. |
558 |
|
cleanme = .true. |
559 |
< |
|
559 |
> |
|
560 |
|
!! Scatter the electron density from pre-pair calculation back to local atoms |
561 |
|
#ifdef IS_MPI |
562 |
|
call scatter(rho_row,rho,plan_row,eam_err) |
601 |
|
pot = pot + u |
602 |
|
enddo |
603 |
|
|
604 |
+ |
|
605 |
|
|
572 |
– |
|
606 |
|
#ifdef IS_MPI |
607 |
|
!! communicate f(rho) and derivatives back into row and column arrays |
608 |
|
call gather(frho,frho_row,plan_row, eam_err) |
668 |
|
!Local Variables |
669 |
|
|
670 |
|
|
671 |
< |
|
671 |
> |
|
672 |
|
phab = 0.0E0_DP |
673 |
|
dvpdr = 0.0E0_DP |
674 |
|
d2vpdrdr = 0.0E0_DP |
675 |
< |
|
643 |
< |
|
675 |
> |
|
676 |
|
if (rij .lt. EAM_rcut) then |
677 |
|
#ifdef IS_MPI |
678 |
|
!!!!! FIX ME |
759 |
|
#ifdef IS_MPI |
760 |
|
dudr = drhojdr*dfrhodrho_row(atom1)+drhoidr*dfrhodrho_col(atom2) & |
761 |
|
+ dvpdr |
762 |
< |
|
762 |
> |
|
763 |
|
#else |
764 |
|
dudr = drhojdr*dfrhodrho(atom1)+drhoidr*dfrhodrho(atom2) & |
765 |
|
+ dvpdr |
766 |
< |
|
766 |
> |
! write(*,*) "Atom1,Atom2, dfrhodrho(atom1) dfrhodrho(atom2): ", atom1,atom2,dfrhodrho(atom1),dfrhodrho(atom2) |
767 |
|
#endif |
768 |
|
|
769 |
|
fx = dudr * drdx |
785 |
|
f_Col(2,atom2) = f_Col(2,atom2) - fy |
786 |
|
f_Col(3,atom2) = f_Col(3,atom2) - fz |
787 |
|
#else |
788 |
< |
if(do_pot) pot = pot + phab |
789 |
< |
|
788 |
> |
|
789 |
> |
if(do_pot) then |
790 |
> |
pot = pot + phab |
791 |
> |
end if |
792 |
> |
|
793 |
|
f(1,atom1) = f(1,atom1) + fx |
794 |
|
f(2,atom1) = f(2,atom1) + fy |
795 |
|
f(3,atom1) = f(3,atom1) + fz |