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Comparing trunk/OOPSE/libmdtools/calc_eam.F90 (file contents):
Revision 497 by chuckv, Mon Apr 14 21:16:37 2003 UTC vs.
Revision 801 by chuckv, Sat Oct 4 18:46:12 2003 UTC

#	Line 1 | Line 1
1	<	module calc_eam
2	<	use definitions, ONLY : DP
1	>	module eam
2	>	use definitions, ONLY : DP,default_error
3	>	use simulation
4		use force_globals
5	<	#ifdef MPI
5	>	use status
6	>	use atype_module
7	>	use Vector_class
8	>	#ifdef IS_MPI
9		use mpiSimulation
10		#endif
11	+	implicit none
12		PRIVATE
13
14
15		logical, save :: EAM_FF_initialized = .false.
16		integer, save :: EAM_Mixing_Policy
17	<	integer, save :: EAM_rcut
17	>	real(kind = dp), save :: EAM_rcut
18	>	logical, save :: haveRcut = .false.
19
20	+	character(len = statusMsgSize) :: errMesg
21	+	integer :: eam_err
22
23	+	character(len = 200) :: errMsg
24	+	character(len=*), parameter :: RoutineName =  "EAM MODULE"
25	+	!! Logical that determines if eam arrays should be zeroed
26	+	logical :: cleanme = .true.
27	+	logical :: nmflag  = .false.
28
29	+
30	+	type, private :: EAMtype
31	+	integer           :: eam_atype
32	+	real( kind = DP ) :: eam_dr
33	+	integer           :: eam_nr
34	+	integer           :: eam_nrho
35	+	real( kind = DP ) :: eam_lattice
36	+	real( kind = DP ) :: eam_drho
37	+	real( kind = DP ) :: eam_rcut
38	+	integer           :: eam_atype_map
39	+
40	+	real( kind = DP ), pointer, dimension(:) :: eam_rvals        => null()
41	+	real( kind = DP ), pointer, dimension(:) :: eam_rhovals      => null()
42	+	real( kind = DP ), pointer, dimension(:) :: eam_F_rho        => null()
43	+	real( kind = DP ), pointer, dimension(:) :: eam_Z_r          => null()
44	+	real( kind = DP ), pointer, dimension(:) :: eam_rho_r        => null()
45	+	real( kind = DP ), pointer, dimension(:) :: eam_phi_r        => null()
46	+	real( kind = DP ), pointer, dimension(:) :: eam_F_rho_pp     => null()
47	+	real( kind = DP ), pointer, dimension(:) :: eam_Z_r_pp       => null()
48	+	real( kind = DP ), pointer, dimension(:) :: eam_rho_r_pp     => null()
49	+	real( kind = DP ), pointer, dimension(:) :: eam_phi_r_pp     => null()
50	+	end type EAMtype
51
17	–	!! standard eam stuff
18	–	integer                                        :: n_eam_atypes
19	–	integer,           allocatable, dimension(:)   :: eam_atype
20	–	real( kind = DP ), allocatable, dimension(:)   :: eam_dr
21	–	integer, allocatable, dimension(:)   :: eam_nr
22	–	integer, allocatable, dimension(:)   :: eam_nrho
23	–	real( kind = DP ), allocatable, dimension(:)   :: eam_lattice
24	–	real( kind = DP ), allocatable, dimension(:)   :: eam_drho
25	–	integer          , allocatable, dimension(:)   :: eam_atype_map
26	–	real( kind = DP ), allocatable, dimension(:,:) :: eam_rvals
27	–	real( kind = DP ), allocatable, dimension(:,:) :: eam_rhovals
28	–	real( kind = DP ), allocatable, dimension(:)   :: eam_rcut
29	–	real( kind = DP ), allocatable, dimension(:,:) :: eam_F_rho
30	–	real( kind = DP ), allocatable, dimension(:,:) :: eam_Z_r
31	–	real( kind = DP ), allocatable, dimension(:,:) :: eam_rho_r
32	–	real( kind = DP ), allocatable, dimension(:,:) :: eam_phi_r
33	–	real( kind = DP ), allocatable, dimension(:,:) :: eam_F_rho_pp
34	–	real( kind = DP ), allocatable, dimension(:,:) :: eam_Z_r_pp
35	–	real( kind = DP ), allocatable, dimension(:,:) :: eam_rho_r_pp
36	–	real( kind = DP ), allocatable, dimension(:,:) :: eam_phi_r_pp
52
53	+	!! Arrays for derivatives used in force calculation
54	+	real( kind = dp), dimension(:), allocatable :: frho
55	+	real( kind = dp), dimension(:), allocatable :: rho
56
57	<	public :: init_EAM_FF
58	<	public :: EAM_new_rcut
41	<	public :: do_EAM_pair
57	>	real( kind = dp), dimension(:), allocatable :: dfrhodrho
58	>	real( kind = dp), dimension(:), allocatable :: d2frhodrhodrho
59
60
61	+	!! Arrays for MPI storage
62	+	#ifdef IS_MPI
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	<	contains
74	<	subroutine init_EAM_FF()
73	>	type, private :: EAMTypeList
74	>	integer           :: n_eam_types = 0
75	>	integer           :: currentAddition = 0
76	>
77	>	type (EAMtype), pointer  :: EAMParams(:) => null()
78	>	end type EAMTypeList
79
80
81	+	type (eamTypeList), save :: EAMList
82
83	<	character(len=80) :: eam_pot_file
51	<	integer :: i, j,  max_size, prev_max_size
52	<	integer :: number_rho, number_r
53	<	integer :: eam_unit
54	<	integer :: this_error
55	<	character(len=300) :: msg
56	<	integer, external :: nfiles
57	<	!for mpi
83	>	!! standard eam stuff
84
85
86	<	#ifdef MPI
87	<	if (node == 0)  &
88	<	n_eam_atypes = nfiles(trim(eam_pot_dir)//char(0))
86	>	public :: init_EAM_FF
87	>	public :: setCutoffEAM
88	>	public :: do_eam_pair
89	>	public :: newEAMtype
90	>	public :: calc_eam_prepair_rho
91	>	public :: calc_eam_preforce_Frho
92	>	public :: clean_EAM
93
94	<	call mpi_bcast(n_eam_atypes,1,mpi_integer,0,mpi_comm_world,mpi_err)
65	<	if (n_eam_atypes == -1) then
66	<	call error("INITIALIZE_EAM","NO EAM potentials found!")
67	<	endif
68	<	write(msg,'(a5,i4,a12,i5,a14)') 'Node: ',node,' reading ...', &
69	<	n_eam_atypes, ' eam atom types'
70	<	call info('INITIALIZE_EAM', trim(msg))
71	<	#else
72	<	n_eam_atypes = nfiles(trim(eam_pot_dir)//char(0))
73	<	if (n_eam_atypes == -1) then
74	<	call error("INITIALIZE_EAM","NO EAM potentials found!")
75	<	endif
94	>	contains
95
77	–	write(msg,'(a12,i5,a14)') ' Reading ...', &
78	–	n_eam_atypes, ' eam atom types'
79	–	call info('INITIALIZE_EAM', trim(msg))
80	–	#endif
96
97	+	subroutine newEAMtype(lattice_constant,eam_nrho,eam_drho,eam_nr,&
98	+	eam_dr,rcut,eam_Z_r,eam_rho_r,eam_F_rho,&
99	+	eam_ident,status)
100	+	real (kind = dp )                      :: lattice_constant
101	+	integer                                :: eam_nrho
102	+	real (kind = dp )                      :: eam_drho
103	+	integer                                :: eam_nr
104	+	real (kind = dp )                      :: eam_dr
105	+	real (kind = dp )                      :: rcut
106	+	real (kind = dp ), dimension(eam_nr)   :: eam_Z_r
107	+	real (kind = dp ), dimension(eam_nr)   :: eam_rho_r
108	+	real (kind = dp ), dimension(eam_nrho) :: eam_F_rho
109	+	integer                                :: eam_ident
110	+	integer                                :: status
111
112	<	call allocate_eam_atype(n_eam_atypes)
112	>	integer                                :: nAtypes
113	>	integer                                :: maxVals
114	>	integer                                :: alloc_stat
115	>	integer                                :: current
116	>	integer,pointer                        :: Matchlist(:) => null()
117
118	+	status = 0
119
120
121	<	!! get largest number of data points for any potential
122	<	#ifdef MPI
123	<	if (node == 0) then
124	<	#endif
125	<	prev_max_size = 0
126	<	do i = 1, n_eam_atypes
127	<	call getfilename(i, eam_pot_file)
128	<	max_size = max(get_eam_sizes( &
129	<	trim(eam_pot_dir) // '/' // eam_pot_file), &
96	<	prev_max_size)
97	<	prev_max_size = max_size
98	<	end do
99	<	#ifdef MPI
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	>
124	>
125	>	! check to see if this is the first time into
126	>	if (.not.associated(EAMList%EAMParams)) then
127	>	call getMatchingElementList(atypes, "is_EAM", .true., nAtypes, MatchList)
128	>	EAMList%n_eam_types = nAtypes
129	>	allocate(EAMList%EAMParams(nAtypes))
130		end if
131
132	+	EAMList%currentAddition = EAMList%currentAddition + 1
133	+	current = EAMList%currentAddition
134	+
135
136	<	call mpi_bcast(max_size,1,mpi_integer,0,mpi_comm_world,mpi_err)
137	<	#endif
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
141
142	<	call allocate_eam_module(n_eam_atypes,max_size)
143	<	allocate(eam_atype_map(get_max_atype()))
142	>	! this is a possible bug, we assume a correspondence between the vector atypes and
143	>	! EAMAtypes
144	>
145	>	EAMList%EAMParams(current)%eam_atype    = eam_ident
146	>	EAMList%EAMParams(current)%eam_lattice  = lattice_constant
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
154	>	EAMList%EAMParams(current)%eam_F_rho    = eam_F_rho
155
156	<	#ifdef MPI
110	<	if (node == 0) then
111	<	#endif
112	<	do i = 1, n_eam_atypes
113	<	call getfilename(i, eam_pot_file)
114	<	call read_eam_pot(i,trim(eam_pot_dir) // '/' // eam_pot_file, &
115	<	this_error)
156	>	end subroutine newEAMtype
157
117	–	do j = 1, eam_nr(i)
118	–	eam_rvals(j,i) = dble(j-1)*eam_dr(i)
119	–	enddo
158
121	–	do j = 1, eam_nrho(i)
122	–	eam_rhovals(j,i) = dble(j-1)*eam_drho(i)
123	–	enddo
159
160	+	subroutine init_EAM_FF(status)
161	+	integer :: status
162	+	integer :: i,j
163	+	real(kind=dp) :: current_rcut_max
164	+	integer :: alloc_stat
165	+	integer :: number_r, number_rho
166	+
167	+
168	+	status = 0
169	+	if (EAMList%currentAddition == 0) then
170	+	call handleError("init_EAM_FF","No members in EAMList")
171	+	status = -1
172	+	return
173	+	end if
174	+
175	+
176	+	do i = 1, EAMList%currentAddition
177	+
178	+	! Build array of r values
179	+
180	+	do j = 1,EAMList%EAMParams(i)%eam_nr
181	+	EAMList%EAMParams(i)%eam_rvals(j) = &
182	+	real(j-1,kind=dp)* &
183	+	EAMList%EAMParams(i)%eam_dr
184	+	end do
185	+	! Build array of rho values
186	+	do j = 1,EAMList%EAMParams(i)%eam_nrho
187	+	EAMList%EAMParams(i)%eam_rhovals(j) = &
188	+	real(j-1,kind=dp)* &
189	+	EAMList%EAMParams(i)%eam_drho
190	+	end do
191		! convert from eV to kcal / mol:
192	<	do j = 1, eam_nrho(i)
127	<	eam_F_rho(j,i) = eam_F_rho(j,i)*23.06054E0_DP
128	<	enddo
192	>	EAMList%EAMParams(i)%eam_F_rho = EAMList%EAMParams(i)%eam_F_rho * 23.06054E0_DP
193
194		! precompute the pair potential and get it into kcal / mol:
195	<	eam_phi_r(1,i) = 0.0E0_DP
196	<	do j = 2, eam_nr(i)
197	<	eam_phi_r(j,i) = (eam_Z_r(j,i)**2)/eam_rvals(j,i)
198	<	eam_phi_r(j,i) = eam_phi_r(j,i)*331.999296E0_DP
195	>	EAMList%EAMParams(i)%eam_phi_r(1) = 0.0E0_DP
196	>	do j = 2, EAMList%EAMParams(i)%eam_nr
197	>	EAMList%EAMParams(i)%eam_phi_r(j) = (EAMList%EAMParams(i)%eam_Z_r(j)**2)/EAMList%EAMParams(i)%eam_rvals(j)
198	>	EAMList%EAMParams(i)%eam_phi_r(j) =  EAMList%EAMParams(i)%eam_phi_r(j)*331.999296E0_DP
199		enddo
136	–
200		end do
201	<	#ifdef MPI
139	<	call info('INITIALIZE_EAM','NODE 0: Distributing spline arrays')
140	<	endif
201	>
202
203	<	call mpi_bcast(this_error,n_eam_atypes,mpi_integer,0, &
204	<	mpi_comm_world,mpi_err)
205	<	if (this_error /= 0) then
206	<	call error('INITIALIZE_EAM',"Cannot read eam files")
207	<	endif
203	>	do i = 1,  EAMList%currentAddition
204	>	number_r   = EAMList%EAMParams(i)%eam_nr
205	>	number_rho = EAMList%EAMParams(i)%eam_nrho
206	>
207	>	call eam_spline(number_r, EAMList%EAMParams(i)%eam_rvals, &
208	>	EAMList%EAMParams(i)%eam_rho_r, &
209	>	EAMList%EAMParams(i)%eam_rho_r_pp, &
210	>	0.0E0_DP, 0.0E0_DP, 'N')
211	>	call eam_spline(number_r, EAMList%EAMParams(i)%eam_rvals, &
212	>	EAMList%EAMParams(i)%eam_Z_r, &
213	>	EAMList%EAMParams(i)%eam_Z_r_pp, &
214	>	0.0E0_DP, 0.0E0_DP, 'N')
215	>	call eam_spline(number_rho, EAMList%EAMParams(i)%eam_rhovals, &
216	>	EAMList%EAMParams(i)%eam_F_rho, &
217	>	EAMList%EAMParams(i)%eam_F_rho_pp, &
218	>	0.0E0_DP, 0.0E0_DP, 'N')
219	>	call eam_spline(number_r, EAMList%EAMParams(i)%eam_rvals, &
220	>	EAMList%EAMParams(i)%eam_phi_r, &
221	>	EAMList%EAMParams(i)%eam_phi_r_pp, &
222	>	0.0E0_DP, 0.0E0_DP, 'N')
223	>	enddo
224
148	–	call mpi_bcast(eam_atype,n_eam_atypes,mpi_integer,0, &
149	–	mpi_comm_world,mpi_err)
225
226	<	!! distribute values to cluster......
227	<	call mpi_bcast(eam_nr,n_eam_atypes,mpi_integer,&
228	<	0,mpi_comm_world,mpi_err)
229	<	call mpi_bcast(eam_nrho,n_eam_atypes,mpi_integer,&
230	<	0,mpi_comm_world,mpi_err)
156	<	call mpi_bcast(eam_rvals,n_eam_atypes*max_size,mpi_double_precision, &
157	<	0,mpi_comm_world,mpi_err)
158	<	call mpi_bcast(eam_rcut,n_eam_atypes,mpi_double_precision, &
159	<	0,mpi_comm_world,mpi_err)
160	<	call mpi_bcast(eam_rhovals,n_eam_atypes*max_size,mpi_double_precision, &
161	<	0,mpi_comm_world,mpi_err)
226	>	!       current_rcut_max = EAMList%EAMParams(1)%eam_rcut
227	>	!! find the smallest rcut for any eam atype
228	>	!       do i = 2, EAMList%currentAddition
229	>	!          current_rcut_max =max(current_rcut_max,EAMList%EAMParams(i)%eam_rcut)
230	>	!       end do
231
232	<	!! distribute arrays
233	<	call mpi_bcast(eam_rho_r,n_eam_atypes*max_size,mpi_double_precision, &
234	<	0,mpi_comm_world,mpi_err)
235	<	call mpi_bcast(eam_Z_r,n_eam_atypes*max_size,mpi_double_precision, &
236	<	0,mpi_comm_world,mpi_err)
237	<	call mpi_bcast(eam_F_rho,n_eam_atypes*max_size,mpi_double_precision, &
238	<	0,mpi_comm_world,mpi_err)
239	<	call mpi_bcast(eam_phi_r,n_eam_atypes*max_size,mpi_double_precision, &
240	<	0,mpi_comm_world,mpi_err)
232	>	!       EAM_rcut = current_rcut_max
233	>	!       EAM_rcut_orig = current_rcut_max
234	>	!       do i = 1, EAMList%currentAddition
235	>	!          EAMList%EAMParam(i)s%eam_atype_map(eam_atype(i)) = i
236	>	!       end do
237	>	!! Allocate arrays for force calculation
238	>
239	>	call allocateEAM(alloc_stat)
240	>	if (alloc_stat /= 0 ) then
241	>	write(*,*) "allocateEAM failed"
242	>	status = -1
243	>	return
244	>	endif
245	>
246	>	end subroutine init_EAM_FF
247
248	+	!! routine checks to see if array is allocated, deallocates array if allocated
249	+	!! and then creates the array to the required size
250	+	subroutine allocateEAM(status)
251	+	integer, intent(out) :: status
252	+
253	+	integer :: nlocal
254	+	#ifdef IS_MPI
255	+	integer :: nrow
256	+	integer :: ncol
257		#endif
258	<	call info('INITIALIZE_EAM', 'creating splines')
258	>	integer :: alloc_stat
259
176	–	do i = 1, n_eam_atypes
177	–	number_r = eam_nr(i)
178	–	number_rho = eam_nrho(i)
260
261	<	call eam_spline(i, number_r, eam_rvals, eam_rho_r, eam_rho_r_pp, &
262	<	0.0E0_DP, 0.0E0_DP, 'N')
263	<	call eam_spline(i, number_r, eam_rvals, eam_Z_r, eam_Z_r_pp, &
264	<	0.0E0_DP, 0.0E0_DP, 'N')
265	<	call eam_spline(i, number_rho, eam_rhovals, eam_F_rho, eam_F_rho_pp, &
266	<	0.0E0_DP, 0.0E0_DP, 'N')
186	<	call eam_spline(i, number_r, eam_rvals, eam_phi_r, eam_phi_r_pp, &
187	<	0.0E0_DP, 0.0E0_DP, 'N')
188	<	enddo
261	>	nlocal = getNlocal()
262	>	status = 0
263	>	#ifdef IS_MPI
264	>	nrow = getNrow(plan_row)
265	>	ncol = getNcol(plan_col)
266	>	#endif
267
268	<	do i = 1, n_eam_atypes
269	<	eam_atype_map(eam_atype(i)) = i
270	<	end do
268	>	if (allocated(frho)) deallocate(frho)
269	>	allocate(frho(nlocal),stat=alloc_stat)
270	>	if (alloc_stat /= 0) then
271	>	status = -1
272	>	return
273	>	end if
274	>	if (allocated(rho)) deallocate(rho)
275	>	allocate(rho(nlocal),stat=alloc_stat)
276	>	if (alloc_stat /= 0) then
277	>	status = -1
278	>	return
279	>	end if
280
281	+	if (allocated(dfrhodrho)) deallocate(dfrhodrho)
282	+	allocate(dfrhodrho(nlocal),stat=alloc_stat)
283	+	if (alloc_stat /= 0) then
284	+	status = -1
285	+	return
286	+	end if
287
288	+	if (allocated(d2frhodrhodrho)) deallocate(d2frhodrhodrho)
289	+	allocate(d2frhodrhodrho(nlocal),stat=alloc_stat)
290	+	if (alloc_stat /= 0) then
291	+	status = -1
292	+	return
293	+	end if
294	+
295	+	#ifdef IS_MPI
296
297	<	call info('INITIALIZE_EAM','Done creating splines')
297	>	if (allocated(frho_row)) deallocate(frho_row)
298	>	allocate(frho_row(nrow),stat=alloc_stat)
299	>	if (alloc_stat /= 0) then
300	>	status = -1
301	>	return
302	>	end if
303	>	if (allocated(rho_row)) deallocate(rho_row)
304	>	allocate(rho_row(nrow),stat=alloc_stat)
305	>	if (alloc_stat /= 0) then
306	>	status = -1
307	>	return
308	>	end if
309	>	if (allocated(dfrhodrho_row)) deallocate(dfrhodrho_row)
310	>	allocate(dfrhodrho_row(nrow),stat=alloc_stat)
311	>	if (alloc_stat /= 0) then
312	>	status = -1
313	>	return
314	>	end if
315	>	if (allocated(d2frhodrhodrho_row)) deallocate(d2frhodrhodrho_row)
316	>	allocate(d2frhodrhodrho_row(nrow),stat=alloc_stat)
317	>	if (alloc_stat /= 0) then
318	>	status = -1
319	>	return
320	>	end if
321
198	–	return
199	–	end subroutine initialize_eam
322
323	+	! Now do column arrays
324
325	<	subroutine allocate_eam_atype(n_size_atype)
326	<	integer, intent(in) :: n_size_atype
325	>	if (allocated(frho_col)) deallocate(frho_col)
326	>	allocate(frho_col(ncol),stat=alloc_stat)
327	>	if (alloc_stat /= 0) then
328	>	status = -1
329	>	return
330	>	end if
331	>	if (allocated(rho_col)) deallocate(rho_col)
332	>	allocate(rho_col(ncol),stat=alloc_stat)
333	>	if (alloc_stat /= 0) then
334	>	status = -1
335	>	return
336	>	end if
337	>	if (allocated(dfrhodrho_col)) deallocate(dfrhodrho_col)
338	>	allocate(dfrhodrho_col(ncol),stat=alloc_stat)
339	>	if (alloc_stat /= 0) then
340	>	status = -1
341	>	return
342	>	end if
343	>	if (allocated(d2frhodrhodrho_col)) deallocate(d2frhodrhodrho_col)
344	>	allocate(d2frhodrhodrho_col(ncol),stat=alloc_stat)
345	>	if (alloc_stat /= 0) then
346	>	status = -1
347	>	return
348	>	end if
349	>
350	>	#endif
351
352	<	allocate(eam_atype(n_size_atype))
206	<	allocate(eam_drho(n_size_atype))
207	<	allocate(eam_dr(n_size_atype))
208	<	allocate(eam_nr(n_size_atype))
209	<	allocate(eam_nrho(n_size_atype))
210	<	allocate(eam_lattice(n_size_atype))
211	<	allocate(eam_rcut(n_size_atype))
352	>	end subroutine allocateEAM
353
354	<	end subroutine allocate_eam_atype
354	>	!! C sets rcut to be the largest cutoff of any atype
355	>	!! present in this simulation. Doesn't include all atypes
356	>	!! sim knows about, just those in the simulation.
357	>	subroutine setCutoffEAM(rcut, status)
358	>	real(kind=dp) :: rcut
359	>	integer :: status
360	>	status = 0
361
362	<	subroutine allocate_eam_module(n_size_atype,n_eam_points)
216	<	integer, intent(in) :: n_eam_points
217	<	integer, intent(in) :: n_size_atype
362	>	EAM_rcut = rcut
363
364	<	allocate(eam_rvals(n_eam_points,n_size_atype))
220	<	allocate(eam_rhovals(n_eam_points,n_size_atype))
221	<	allocate(eam_F_rho(n_eam_points,n_size_atype))
222	<	allocate(eam_Z_r(n_eam_points,n_size_atype))
223	<	allocate(eam_rho_r(n_eam_points,n_size_atype))
224	<	allocate(eam_phi_r(n_eam_points,n_size_atype))
225	<	allocate(eam_F_rho_pp(n_eam_points,n_size_atype))
226	<	allocate(eam_Z_r_pp(n_eam_points,n_size_atype))
227	<	allocate(eam_rho_r_pp(n_eam_points,n_size_atype))
228	<	allocate(eam_phi_r_pp(n_eam_points,n_size_atype))
364	>	end subroutine setCutoffEAM
365
230	–	end subroutine allocate_eam_module
366
232	–	subroutine deallocate_eam_module()
367
368	<	deallocate(eam_atype)
369	<	deallocate(eam_drho)
370	<	deallocate(eam_dr)
371	<	deallocate(eam_nr)
372	<	deallocate(eam_nrho)
373	<	deallocate(eam_lattice)
374	<	deallocate(eam_atype_map)
375	<	deallocate(eam_rvals)
376	<	deallocate(eam_rhovals)
377	<	deallocate(eam_rcut)
378	<	deallocate(eam_Z_r)
379	<	deallocate(eam_rho_r)
380	<	deallocate(eam_phi_r)
381	<	deallocate(eam_F_rho_pp)
382	<	deallocate(eam_Z_r_pp)
383	<	deallocate(eam_rho_r_pp)
384	<	deallocate(eam_phi_r_pp)
368	>	subroutine clean_EAM()
369	>
370	>	! clean non-IS_MPI first
371	>	frho = 0.0_dp
372	>	rho  = 0.0_dp
373	>	dfrhodrho = 0.0_dp
374	>	! clean MPI if needed
375	>	#ifdef IS_MPI
376	>	frho_row = 0.0_dp
377	>	frho_col = 0.0_dp
378	>	rho_row  = 0.0_dp
379	>	rho_col  = 0.0_dp
380	>	dfrhodrho_row = 0.0_dp
381	>	dfrhodrho_col = 0.0_dp
382	>	#endif
383	>	end subroutine clean_EAM
384	>
385	>
386	>
387	>	subroutine allocate_EAMType(eam_n_rho,eam_n_r,thisEAMType,stat)
388	>	integer, intent(in)          :: eam_n_rho
389	>	integer, intent(in)          :: eam_n_r
390	>	type (EAMType)               :: thisEAMType
391	>	integer, optional   :: stat
392	>	integer             :: alloc_stat
393	>
394	>
395	>
396	>	if (present(stat)) stat = 0
397	>
398	>	allocate(thisEAMType%eam_rvals(eam_n_r),stat=alloc_stat)
399	>	if (alloc_stat /= 0 ) then
400	>	if (present(stat)) stat = -1
401	>	return
402	>	end if
403	>	allocate(thisEAMType%eam_rhovals(eam_n_rho),stat=alloc_stat)
404	>	if (alloc_stat /= 0 ) then
405	>	if (present(stat)) stat = -1
406	>	return
407	>	end if
408	>	allocate(thisEAMType%eam_F_rho(eam_n_rho),stat=alloc_stat)
409	>	if (alloc_stat /= 0 ) then
410	>	if (present(stat)) stat = -1
411	>	return
412	>	end if
413	>	allocate(thisEAMType%eam_Z_r(eam_n_r),stat=alloc_stat)
414	>	if (alloc_stat /= 0 ) then
415	>	if (present(stat)) stat = -1
416	>	return
417	>	end if
418	>	allocate(thisEAMType%eam_rho_r(eam_n_r),stat=alloc_stat)
419	>	if (alloc_stat /= 0 ) then
420	>	if (present(stat)) stat = -1
421	>	return
422	>	end if
423	>	allocate(thisEAMType%eam_phi_r(eam_n_r),stat=alloc_stat)
424	>	if (alloc_stat /= 0 ) then
425	>	if (present(stat)) stat = -1
426	>	return
427	>	end if
428	>	allocate(thisEAMType%eam_F_rho_pp(eam_n_rho),stat=alloc_stat)
429	>	if (alloc_stat /= 0 ) then
430	>	if (present(stat)) stat = -1
431	>	return
432	>	end if
433	>	allocate(thisEAMType%eam_Z_r_pp(eam_n_r),stat=alloc_stat)
434	>	if (alloc_stat /= 0 ) then
435	>	if (present(stat)) stat = -1
436	>	return
437	>	end if
438	>	allocate(thisEAMType%eam_rho_r_pp(eam_n_r),stat=alloc_stat)
439	>	if (alloc_stat /= 0 ) then
440	>	if (present(stat)) stat = -1
441	>	return
442	>	end if
443	>	allocate(thisEAMType%eam_phi_r_pp(eam_n_r),stat=alloc_stat)
444	>	if (alloc_stat /= 0 ) then
445	>	if (present(stat)) stat = -1
446	>	return
447	>	end if
448	>
449	>
450	>	end subroutine allocate_EAMType
451	>
452	>
453	>	subroutine deallocate_EAMType(thisEAMType)
454	>	type (EAMtype), pointer :: thisEAMType
455	>
456	>	! free Arrays in reverse order of allocation...
457	>	deallocate(thisEAMType%eam_phi_r_pp)
458	>	deallocate(thisEAMType%eam_rho_r_pp)
459	>	deallocate(thisEAMType%eam_Z_r_pp)
460	>	deallocate(thisEAMType%eam_F_rho_pp)
461	>	deallocate(thisEAMType%eam_phi_r)
462	>	deallocate(thisEAMType%eam_rho_r)
463	>	deallocate(thisEAMType%eam_Z_r)
464	>	deallocate(thisEAMType%eam_F_rho)
465	>	deallocate(thisEAMType%eam_rhovals)
466	>	deallocate(thisEAMType%eam_rvals)
467	>
468	>	end subroutine deallocate_EAMType
469	>
470	>	!! Calculates rho_r
471	>	subroutine calc_eam_prepair_rho(atom1,atom2,d,r,rijsq)
472	>	integer :: atom1,atom2
473	>	real(kind = dp), dimension(3) :: d
474	>	real(kind = dp), intent(inout)               :: r
475	>	real(kind = dp), intent(inout)               :: rijsq
476	>	! value of electron density rho do to atom i at atom j
477	>	real(kind = dp) :: rho_i_at_j
478	>	! value of electron density rho do to atom j at atom i
479	>	real(kind = dp) :: rho_j_at_i
480	>
481	>	! we don't use the derivatives, dummy variables
482	>	real( kind = dp) :: drho,d2rho
483	>	integer :: eam_err
484	>
485	>	integer :: myid_atom1
486	>	integer :: myid_atom2
487	>
488	>	! check to see if we need to be cleaned at the start of a force loop
489	>
490	>
491	>
492	>
493	>	#ifdef IS_MPI
494	>	myid_atom1 = atid_Row(atom1)
495	>	myid_atom2 = atid_Col(atom2)
496	>	#else
497	>	myid_atom1 = atid(atom1)
498	>	myid_atom2 = atid(atom2)
499	>	#endif
500	>
501	>	if (r.lt.EAMList%EAMParams(myid_atom1)%eam_rcut) then
502	>
503	>
504	>
505	>	call eam_splint(EAMList%EAMParams(myid_atom1)%eam_nr, &
506	>	EAMList%EAMParams(myid_atom1)%eam_rvals, &
507	>	EAMList%EAMParams(myid_atom1)%eam_rho_r, &
508	>	EAMList%EAMParams(myid_atom1)%eam_rho_r_pp, &
509	>	r, rho_i_at_j,drho,d2rho)
510	>
511	>
512	>
513	>	#ifdef  IS_MPI
514	>	rho_col(atom2) = rho_col(atom2) + rho_i_at_j
515	>	#else
516	>	rho(atom2) = rho(atom2) + rho_i_at_j
517	>	#endif
518	>	!       write(*,*) atom1,atom2,r,rho_i_at_j
519	>	endif
520	>
521	>	if (r.lt.EAMList%EAMParams(myid_atom2)%eam_rcut) then
522	>	call eam_splint(EAMList%EAMParams(myid_atom2)%eam_nr, &
523	>	EAMList%EAMParams(myid_atom2)%eam_rvals, &
524	>	EAMList%EAMParams(myid_atom2)%eam_rho_r, &
525	>	EAMList%EAMParams(myid_atom2)%eam_rho_r_pp, &
526	>	r, rho_j_at_i,drho,d2rho)
527	>
528	>
529	>
530	>
531	>	#ifdef  IS_MPI
532	>	rho_row(atom1) = rho_row(atom1) + rho_j_at_i
533	>	#else
534	>	rho(atom1) = rho(atom1) + rho_j_at_i
535	>	#endif
536	>	endif
537	>
538	>
539	>	end subroutine calc_eam_prepair_rho
540	>
541	>
542	>
543	>
544	>	!! Calculate the functional F(rho) for all local atoms
545	>	subroutine calc_eam_preforce_Frho(nlocal,pot)
546	>	integer :: nlocal
547	>	real(kind=dp) :: pot
548	>	integer :: i,j
549	>	integer :: atom
550	>	real(kind=dp) :: U,U1,U2
551	>	integer :: atype1
552	>	integer :: me
553	>	integer :: n_rho_points
554	>
555	>
556	>	cleanme = .true.
557	>	!! Scatter the electron density from  pre-pair calculation back to local atoms
558	>	#ifdef IS_MPI
559	>	call scatter(rho_row,rho,plan_row,eam_err)
560	>	if (eam_err /= 0 ) then
561	>	write(errMsg,*) " Error scattering rho_row into rho"
562	>	call handleError(RoutineName,errMesg)
563	>	endif
564	>	call scatter(rho_col,rho,plan_col,eam_err)
565	>	if (eam_err /= 0 ) then
566	>	write(errMsg,*) " Error scattering rho_col into rho"
567	>	call handleError(RoutineName,errMesg)
568	>	endif
569	>	#endif
570
252	–	end subroutine deallocate_eam_module
571
572	+	!! Calculate F(rho) and derivative
573	+	do atom = 1, nlocal
574	+	me = atid(atom)
575	+	n_rho_points = EAMList%EAMParams(me)%eam_nrho
576	+	!  Check to see that the density is not greater than the larges rho we have calculated
577	+	if (rho(atom) < EAMList%EAMParams(me)%eam_rhovals(n_rho_points)) then
578	+	call eam_splint(n_rho_points, &
579	+	EAMList%EAMParams(me)%eam_rhovals, &
580	+	EAMList%EAMParams(me)%eam_f_rho, &
581	+	EAMList%EAMParams(me)%eam_f_rho_pp, &
582	+	rho(atom), & ! Actual Rho
583	+	u, u1, u2)
584	+	else
585	+	! Calculate F(rho with the largest available rho value
586	+	call eam_splint(n_rho_points, &
587	+	EAMList%EAMParams(me)%eam_rhovals, &
588	+	EAMList%EAMParams(me)%eam_f_rho, &
589	+	EAMList%EAMParams(me)%eam_f_rho_pp, &
590	+	EAMList%EAMParams(me)%eam_rhovals(n_rho_points), & ! Largest rho
591	+	u,u1,u2)
592	+	end if
593
594	<	subroutine calc_eam_pair(atom1,atom2,d,rij,r2,pot,f,do_pot,do_stress)
595	<	!Arguments
594	>
595	>	frho(atom) = u
596	>	dfrhodrho(atom) = u1
597	>	d2frhodrhodrho(atom) = u2
598	>	pot = pot + u
599	>
600	>	enddo
601	>
602	>
603	>
604	>	#ifdef IS_MPI
605	>	!! communicate f(rho) and derivatives back into row and column arrays
606	>	call gather(frho,frho_row,plan_row, eam_err)
607	>	if (eam_err /=  0) then
608	>	call handleError("cal_eam_forces()","MPI gather frho_row failure")
609	>	endif
610	>	call gather(dfrhodrho,dfrhodrho_row,plan_row, eam_err)
611	>	if (eam_err /=  0) then
612	>	call handleError("cal_eam_forces()","MPI gather dfrhodrho_row failure")
613	>	endif
614	>	call gather(frho,frho_col,plan_col, eam_err)
615	>	if (eam_err /=  0) then
616	>	call handleError("cal_eam_forces()","MPI gather frho_col failure")
617	>	endif
618	>	call gather(dfrhodrho,dfrhodrho_col,plan_col, eam_err)
619	>	if (eam_err /=  0) then
620	>	call handleError("cal_eam_forces()","MPI gather dfrhodrho_col failure")
621	>	endif
622	>
623	>
624	>
625	>
626	>
627	>	if (nmflag) then
628	>	call gather(d2frhodrhodrho,d2frhodrhodrho_row,plan_row)
629	>	call gather(d2frhodrhodrho,d2frhodrhodrho_col,plan_col)
630	>	endif
631	>	#endif
632	>
633	>
634	>	end subroutine calc_eam_preforce_Frho
635	>
636	>
637	>
638	>
639	>	!! Does EAM pairwise Force calculation.
640	>	subroutine do_eam_pair(atom1,atom2,d,rij,r2,pot,f,do_pot,do_stress)
641	>	!Arguments
642		integer, intent(in) ::  atom1, atom2
643		real( kind = dp ), intent(in) :: rij, r2
644		real( kind = dp ) :: pot
645		real( kind = dp ), dimension(3,getNlocal()) :: f
646		real( kind = dp ), intent(in), dimension(3) :: d
647		logical, intent(in) :: do_pot, do_stress
648	+
649	+	real( kind = dp ) :: drdx,drdy,drdz
650	+	real( kind = dp ) :: d2
651	+	real( kind = dp ) :: phab,pha,dvpdr,d2vpdrdr
652	+	real( kind = dp ) :: rha,drha,d2rha, dpha
653	+	real( kind = dp ) :: rhb,drhb,d2rhb, dphb
654	+	real( kind = dp ) :: dudr
655	+	real( kind = dp ) :: rci,rcj
656	+	real( kind = dp ) :: drhoidr,drhojdr
657	+	real( kind = dp ) :: d2rhoidrdr
658	+	real( kind = dp ) :: d2rhojdrdr
659	+	real( kind = dp ) :: Fx,Fy,Fz
660	+	real( kind = dp ) :: r,d2pha,phb,d2phb
661
662	+	integer :: id1,id2
663	+	integer  :: mytype_atom1
664	+	integer  :: mytype_atom2
665	+
666		!Local Variables
667
668	+	! write(*,*) "Frho: ", Frho(atom1)
669
670	+	phab = 0.0E0_DP
671	+	dvpdr = 0.0E0_DP
672	+	d2vpdrdr = 0.0E0_DP
673	+
674		if (rij .lt. EAM_rcut) then
675	+	#ifdef IS_MPI
676	+	!!!!! FIX ME
677	+	mytype_atom1 = atid_row(atom1)
678	+	#else
679	+	mytype_atom1 = atid(atom1)
680	+	#endif
681	+
682	+	drdx = d(1)/rij
683	+	drdy = d(2)/rij
684	+	drdz = d(3)/rij
685	+
686
687	<	r = dsqrt(rijsq)
688	<	efr(1,j) = -rxij
689	<	efr(2,j) = -ryij
690	<	efr(3,j) = -rzij
687	>	call eam_splint(EAMList%EAMParams(mytype_atom1)%eam_nr, &
688	>	EAMList%EAMParams(mytype_atom1)%eam_rvals, &
689	>	EAMList%EAMParams(mytype_atom1)%eam_rho_r, &
690	>	EAMList%EAMParams(mytype_atom1)%eam_rho_r_pp, &
691	>	rij, rha,drha,d2rha)
692
693	+	!! Calculate Phi(r) for atom1.
694	+	call eam_splint(EAMList%EAMParams(mytype_atom1)%eam_nr, &
695	+	EAMList%EAMParams(mytype_atom1)%eam_rvals, &
696	+	EAMList%EAMParams(mytype_atom1)%eam_phi_r, &
697	+	EAMList%EAMParams(mytype_atom1)%eam_phi_r_pp, &
698	+	rij, pha,dpha,d2pha)
699
700	<	call calc_eam_rho(r, rha, drha, d2rha, atype1)
701	<	call calc_eam_phi(r, pha, dpha, d2pha, atype1)
702	<	rci = eam_rcut(eam_atype_map(atype1))
703	<	#ifdef MPI
704	<	atype2 = ident_col(j)
700	>
701	>	! get cutoff for atom 1
702	>	rci = EAMList%EAMParams(mytype_atom1)%eam_rcut
703	>	#ifdef IS_MPI
704	>	mytype_atom2 = atid_col(atom2)
705		#else
706	<	atype2 = ident(j)
706	>	mytype_atom2 = atid(atom2)
707		#endif
708
709	<	call calc_eam_rho(r, rhb, drhb, d2rhb, atype2)
710	<	call calc_eam_phi(r, phb, dphb, d2phb, atype2)
711	<	rcj = eam_rcut(eam_atype_map(atype2))
709	>	! Calculate rho,drho and d2rho for atom1
710	>	call eam_splint(EAMList%EAMParams(mytype_atom2)%eam_nr, &
711	>	EAMList%EAMParams(mytype_atom2)%eam_rvals, &
712	>	EAMList%EAMParams(mytype_atom2)%eam_rho_r, &
713	>	EAMList%EAMParams(mytype_atom2)%eam_rho_r_pp, &
714	>	rij, rhb,drhb,d2rhb)
715
716	<	phab = 0.0E0_DP
717	<	dvpdr = 0.0E0_DP
718	<	d2vpdrdr = 0.0E0_DP
716	>	!! Calculate Phi(r) for atom2.
717	>	call eam_splint(EAMList%EAMParams(mytype_atom2)%eam_nr, &
718	>	EAMList%EAMParams(mytype_atom2)%eam_rvals, &
719	>	EAMList%EAMParams(mytype_atom2)%eam_phi_r, &
720	>	EAMList%EAMParams(mytype_atom2)%eam_phi_r_pp, &
721	>	rij, phb,dphb,d2phb)
722
723	<	if (r.lt.rci) then
723	>
724	>	! get type specific cutoff for atom 2
725	>	rcj = EAMList%EAMParams(mytype_atom1)%eam_rcut
726	>
727	>
728	>
729	>	if (rij.lt.rci) then
730		phab = phab + 0.5E0_DP*(rhb/rha)*pha
731		dvpdr = dvpdr + 0.5E0_DP*((rhb/rha)*dpha + &
732		pha*((drhb/rha) - (rhb*drha/rha/rha)))
#	Line 298 | Line 735 | contains
735		pha*((d2rhb/rha) - 2.0E0_DP*(drhb*drha/rha/rha) + &
736		(2.0E0_DP*rhb*drha*drha/rha/rha/rha) - (rhb*d2rha/rha/rha)))
737		endif
738	+
739
740	<
303	<	if (r.lt.rcj) then
740	>	if (rij.lt.rcj) then
741		phab = phab + 0.5E0_DP*(rha/rhb)*phb
742		dvpdr = dvpdr + 0.5E0_DP*((rha/rhb)*dphb + &
743		phb*((drha/rhb) - (rha*drhb/rhb/rhb)))
#	Line 309 | Line 746 | contains
746		phb*((d2rha/rhb) - 2.0E0_DP*(drha*drhb/rhb/rhb) + &
747		(2.0E0_DP*rha*drhb*drhb/rhb/rhb/rhb) - (rha*d2rhb/rhb/rhb)))
748		endif
749	<
313	<
314	<	#ifdef MPI
315	<
316	<	e_row(i) = e_row(i) + phab*0.5
317	<	e_col(i) = e_col(i) + phab*0.5
318	<	#else
319	<	if (do_pot) pot = pot + phab
320	<	#endif
321	<
749	>
750		drhoidr = drha
751		drhojdr = drhb
752
753		d2rhoidrdr = d2rha
754		d2rhojdrdr = d2rhb
755	<	#ifdef MPI
756	<	dudr = drhojdr*dfrhodrho_row(i)+drhoidr*dfrhodrho_col(j) &
755	>
756	>
757	>	#ifdef IS_MPI
758	>	dudr = drhojdr*dfrhodrho_row(atom1)+drhoidr*dfrhodrho_col(atom2) &
759		+ dvpdr
760
331	–	if (nmflag) then
332	–	d2 = d2vpdrdr + &
333	–	d2rhoidrdr*dfrhodrho_col(j) + &
334	–	d2rhojdrdr*dfrhodrho_row(i) + &
335	–	drhoidr*drhoidr*d2frhodrhodrho_col(j) + &
336	–	drhojdr*drhojdr*d2frhodrhodrho_row(i)
337	–	endif
761		#else
762	<	dudr = drhojdr*dfrhodrho(i)+drhoidr*dfrhodrho(j) &
762	>	dudr = drhojdr*dfrhodrho(atom1)+drhoidr*dfrhodrho(atom2) &
763		+ dvpdr
764	<
342	<	d2 = d2vpdrdr + &
343	<	d2rhoidrdr*dfrhodrho(j) + &
344	<	d2rhojdrdr*dfrhodrho(i) + &
345	<	drhoidr*drhoidr*d2frhodrhodrho(j) + &
346	<	drhojdr*drhojdr*d2frhodrhodrho(i)
764	>	! write(*,*) "Atom1,Atom2, dfrhodrho(atom1) dfrhodrho(atom2): ", atom1,atom2,dfrhodrho(atom1),dfrhodrho(atom2)
765		#endif
766
767	+	fx = dudr * drdx
768	+	fy = dudr * drdy
769	+	fz = dudr * drdz
770
350	–	do dim = 1, 3
771
772	<	drdx1 = efr(dim,j) / r
773	<	ftmp = dudr * drdx1
772	>	#ifdef IS_MPI
773	>	if (do_pot) then
774	>	pot_Row(atom1) = pot_Row(atom1) + phab*0.5
775	>	pot_Col(atom2) = pot_Col(atom2) + phab*0.5
776	>	end if
777
778	<	#ifdef MPI
779	<	f_col(dim,j) = f_col(dim,j) - ftmp
780	<	f_row(dim,i) = f_row(dim,i) + ftmp
778	>	f_Row(1,atom1) = f_Row(1,atom1) + fx
779	>	f_Row(2,atom1) = f_Row(2,atom1) + fy
780	>	f_Row(3,atom1) = f_Row(3,atom1) + fz
781	>
782	>	f_Col(1,atom2) = f_Col(1,atom2) - fx
783	>	f_Col(2,atom2) = f_Col(2,atom2) - fy
784	>	f_Col(3,atom2) = f_Col(3,atom2) - fz
785		#else
359	–	f(dim,j) = f(dim,j) - ftmp
360	–	f(dim,i) = f(dim,i) + ftmp
361	–	#endif
786
787	<	if (nmflag) then
788	<	idim = 3 * (i-1) + dim
789	<	jdim = 3 * (j-1) + dim
787	>	if(do_pot) then
788	>	pot = pot + phab
789	>	end if
790
791	<	do dim2 = 1, 3
791	>	f(1,atom1) = f(1,atom1) + fx
792	>	f(2,atom1) = f(2,atom1) + fy
793	>	f(3,atom1) = f(3,atom1) + fz
794	>
795	>	f(1,atom2) = f(1,atom2) - fx
796	>	f(2,atom2) = f(2,atom2) - fy
797	>	f(3,atom2) = f(3,atom2) - fz
798	>	#endif
799	>
800	>	if (nmflag) then
801
802	<	kt1 = d2 * efr(dim,j) * efr(dim2,j)/r/r
803	<	kt2 = - dudr * efr(dim,j) * efr(dim2,j)/r/r/r
802	>	drhoidr = drha
803	>	drhojdr = drhb
804	>	d2rhoidrdr = d2rha
805	>	d2rhojdrdr = d2rhb
806
807	<	if (dim.eq.dim2) then
808	<	kt3 = dudr / r
809	<	else
810	<	kt3 = 0.0E0_DP
811	<	endif
807	>	#ifdef IS_MPI
808	>	d2 = d2vpdrdr + &
809	>	d2rhoidrdr*dfrhodrho_col(atom2) + &
810	>	d2rhojdrdr*dfrhodrho_row(atom1) + &
811	>	drhoidr*drhoidr*d2frhodrhodrho_col(atom2) + &
812	>	drhojdr*drhojdr*d2frhodrhodrho_row(atom1)
813	>
814	>	#else
815
816	<	! The factor of 2 below is to compensate for
817	<	! overcounting.
818	<	! Mass weighting is done separately...
816	>	d2 = d2vpdrdr + &
817	>	d2rhoidrdr*dfrhodrho(atom2) + &
818	>	d2rhojdrdr*dfrhodrho(atom1) + &
819	>	drhoidr*drhoidr*d2frhodrhodrho(atom2) + &
820	>	drhojdr*drhojdr*d2frhodrhodrho(atom1)
821	>	#endif
822	>	end if
823
382	–	ktmp = (kt1+kt2+kt3)/2.0E0_DP
383	–	idim2 = 3 * (i-1) + dim2
384	–	jdim2 = 3 * (j-1) + dim2
824
825	<	d(idim,  idim2) = d(idim,idim2)  + ktmp
826	<	d(idim2, idim) = d(idim2,idim)   + ktmp
825	>
826	>
827	>	if (do_stress) then
828	>
829	>	#ifdef IS_MPI
830	>	id1 = tagRow(atom1)
831	>	id2 = tagColumn(atom2)
832	>	#else
833	>	id1 = atom1
834	>	id2 = atom2
835	>	#endif
836	>
837	>	if (molMembershipList(id1) .ne. molMembershipList(id2)) then
838
839	<	d(idim,  jdim2) = d(idim,jdim2)  - ktmp
840	<	d(idim2, jdim) = d(idim2,jdim)   - ktmp
841	<
842	<	d(jdim,  idim2) = d(jdim,idim2)  - ktmp
843	<	d(jdim2, idim) = d(jdim2,idim)   - ktmp
844	<
845	<	d(jdim,  jdim2) = d(jdim,jdim2)  + ktmp
846	<	d(jdim2, jdim) = d(jdim2,jdim)   + ktmp
847	<
398	<	enddo
399	<	endif
400	<	enddo
401	<
402	<	endif
403	<	enddo
404	<	endif
405	<
406	<	enddo
839	>	tau_Temp(1) = tau_Temp(1) - d(1) * fx
840	>	tau_Temp(2) = tau_Temp(2) - d(1) * fy
841	>	tau_Temp(3) = tau_Temp(3) - d(1) * fz
842	>	tau_Temp(4) = tau_Temp(4) - d(2) * fx
843	>	tau_Temp(5) = tau_Temp(5) - d(2) * fy
844	>	tau_Temp(6) = tau_Temp(6) - d(2) * fz
845	>	tau_Temp(7) = tau_Temp(7) - d(3) * fx
846	>	tau_Temp(8) = tau_Temp(8) - d(3) * fy
847	>	tau_Temp(9) = tau_Temp(9) - d(3) * fz
848
849	+	virial_Temp = virial_Temp + &
850	+	(tau_Temp(1) + tau_Temp(5) + tau_Temp(9))
851
852	+	endif
853	+	endif
854	+	endif
855
856	+
857	+	end subroutine do_eam_pair
858
411	–	end subroutine calc_eam_pair
859
860	<	subroutine calc_eam_rho(r, rho, drho, d2rho, atype)
860	>	subroutine eam_splint(nx, xa, ya, yppa, x, y, dy, d2y)
861
862	<	!  include 'headers/sizes.h'
862	>	integer :: atype, nx, j
863	>	real( kind = DP ), dimension(:) :: xa
864	>	real( kind = DP ), dimension(:) :: ya
865	>	real( kind = DP ), dimension(:) :: yppa
866	>	real( kind = DP ) :: x, y
867	>	real( kind = DP ) :: dy, d2y
868	>	real( kind = DP ) :: del, h, a, b, c, d
869	>	integer :: pp_arraySize
870
871	+
872	+	! this spline code assumes that the x points are equally spaced
873	+	! do not attempt to use this code if they are not.
874	+
875	+
876	+	! find the closest point with a value below our own:
877	+	j = FLOOR(real((nx-1),kind=dp) * (x - xa(1)) / (xa(nx) - xa(1))) + 1
878
879	<	integer atype, etype, number_r
880	<	real( kind = DP )  :: r, rho, drho, d2rho
881	<	integer :: i
879	>	! check to make sure we're inside the spline range:
880	>	if ((j.gt.nx).or.(j.lt.1)) then
881	>	write(errMSG,*) "EAM_splint: x is outside bounds of spline"
882	>	call handleError(routineName,errMSG)
883	>	endif
884	>	! check to make sure we haven't screwed up the calculation of j:
885	>	if ((x.lt.xa(j)).or.(x.gt.xa(j+1))) then
886	>	if (j.ne.nx) then
887	>	write(errMSG,*) "EAM_splint:",x," x is outside bounding range"
888	>	call handleError(routineName,errMSG)
889	>	endif
890	>	endif
891
892	+	del = xa(j+1) - x
893	+	h = xa(j+1) - xa(j)
894	+
895	+	a = del / h
896	+	b = 1.0E0_DP - a
897	+	c = a*(a*a - 1.0E0_DP)*h*h/6.0E0_DP
898	+	d = b*(b*b - 1.0E0_DP)*h*h/6.0E0_DP
899	+
900	+	y = a*ya(j) + b*ya(j+1) + c*yppa(j) + d*yppa(j+1)
901	+
902	+	dy = (ya(j+1)-ya(j))/h &
903	+	- (3.0E0_DP*a*a - 1.0E0_DP)*h*yppa(j)/6.0E0_DP &
904	+	+ (3.0E0_DP*b*b - 1.0E0_DP)*h*yppa(j+1)/6.0E0_DP
905	+
906	+
907	+	d2y = a*yppa(j) + b*yppa(j+1)
908	+
909
910	<	etype = eam_atype_map(atype)
910	>	end subroutine eam_splint
911
425	–	if (r.lt.eam_rcut(etype)) then
426	–	number_r = eam_nr(etype)
427	–	call eam_splint(etype, number_r, eam_rvals, eam_rho_r, &
428	–	eam_rho_r_pp, r, rho, drho, d2rho)
429	–	else
430	–	rho = 0.0E0_DP
431	–	drho = 0.0E0_DP
432	–	d2rho = 0.0E0_DP
433	–	endif
912
913	<	return
436	<	end subroutine calc_eam_rho
913	>	subroutine eam_spline(nx, xa, ya, yppa, yp1, ypn, boundary)
914
438	–	subroutine calc_eam_frho(dens, u, u1, u2, atype)
915
916	<	! include 'headers/sizes.h'
916	>	! yp1 and ypn are the first derivatives of y at the two endpoints
917	>	! if boundary is 'L' the lower derivative is used
918	>	! if boundary is 'U' the upper derivative is used
919	>	! if boundary is 'B' then both derivatives are used
920	>	! if boundary is anything else, then both derivatives are assumed to be 0
921	>
922	>	integer :: nx, i, k, max_array_size
923	>
924	>	real( kind = DP ), dimension(:)        :: xa
925	>	real( kind = DP ), dimension(:)        :: ya
926	>	real( kind = DP ), dimension(:)        :: yppa
927	>	real( kind = DP ), dimension(size(xa)) :: u
928	>	real( kind = DP ) :: yp1,ypn,un,qn,sig,p
929	>	character(len=*) :: boundary
930	>
931	>	! make sure the sizes match
932	>	if ((nx /= size(xa)) .or. (nx /= size(ya))) then
933	>	call handleWarning("EAM_SPLINE","Array size mismatch")
934	>	end if
935
936	<	integer atype, etype, number_rho
937	<	real( kind = DP ) :: dens, u, u1, u2
938	<	real( kind = DP ) :: rho_vals
936	>	if ((boundary.eq.'l').or.(boundary.eq.'L').or. &
937	>	(boundary.eq.'b').or.(boundary.eq.'B')) then
938	>	yppa(1) = -0.5E0_DP
939	>	u(1) = (3.0E0_DP/(xa(2)-xa(1)))*((ya(2)-&
940	>	ya(1))/(xa(2)-xa(1))-yp1)
941	>	else
942	>	yppa(1) = 0.0E0_DP
943	>	u(1)  = 0.0E0_DP
944	>	endif
945	>
946	>	do i = 2, nx - 1
947	>	sig = (xa(i) - xa(i-1)) / (xa(i+1) - xa(i-1))
948	>	p = sig * yppa(i-1) + 2.0E0_DP
949	>	yppa(i) = (sig - 1.0E0_DP) / p
950	>	u(i) = (6.0E0_DP*((ya(i+1)-ya(i))/(xa(i+1)-xa(i)) - &
951	>	(ya(i)-ya(i-1))/(xa(i)-xa(i-1)))/ &
952	>	(xa(i+1)-xa(i-1)) - sig * u(i-1))/p
953	>	enddo
954	>
955	>	if ((boundary.eq.'u').or.(boundary.eq.'U').or. &
956	>	(boundary.eq.'b').or.(boundary.eq.'B')) then
957	>	qn = 0.5E0_DP
958	>	un = (3.0E0_DP/(xa(nx)-xa(nx-1)))* &
959	>	(ypn-(ya(nx)-ya(nx-1))/(xa(nx)-xa(nx-1)))
960	>	else
961	>	qn = 0.0E0_DP
962	>	un = 0.0E0_DP
963	>	endif
964
965	<	etype = eam_atype_map(atype)
966	<	number_rho = eam_nrho(etype)
967	<	if (dens.lt.eam_rhovals(number_rho, etype)) then
968	<	call eam_splint(etype, number_rho, eam_rhovals, eam_f_rho, &
969	<	eam_f_rho_pp, dens, u, u1, u2)
451	<	else
452	<	rho_vals = eam_rhovals(number_rho,etype)
453	<	call eam_splint(etype, number_rho, eam_rhovals, eam_f_rho, &
454	<	eam_f_rho_pp, rho_vals, u, u1, u2)
455	<	endif
965	>	yppa(nx)=(un-qn*u(nx-1))/(qn*yppa(nx-1)+1.0E0_DP)
966	>
967	>	do k = nx-1, 1, -1
968	>	yppa(k)=yppa(k)*yppa(k+1)+u(k)
969	>	enddo
970
971	<	return
458	<	end subroutine calc_eam_frho
971	>	end subroutine eam_spline
972
460	–	subroutine calc_eam_phi(r, phi, dphi, d2phi, atype)
973
974
975
976	<
465	<	integer atype, etype, number_r
466	<	real( kind = DP ) :: r, phi, dphi, d2phi
467	<
468	<	etype = eam_atype_map(atype)
469	<
470	<	if (r.lt.eam_rcut(etype)) then
471	<	number_r = eam_nr(etype)
472	<	call eam_splint(etype, number_r, eam_rvals, eam_phi_r, &
473	<	eam_phi_r_pp, r, phi, dphi, d2phi)
474	<	else
475	<	phi = 0.0E0_DP
476	<	dphi = 0.0E0_DP
477	<	d2phi = 0.0E0_DP
478	<	endif
479	<
480	<	return
481	<	end subroutine calc_eam_phi
482	<
483	<
484	<	subroutine eam_splint(atype, nx, xa, ya, yppa, x, y, dy, d2y)
485	<
486	<	!  include 'headers/sizes.h'
487	<
488	<	real( kind = DP ), dimension(:,:) :: xa
489	<	real( kind = DP ), dimension(:,:) :: ya
490	<	real( kind = DP ), dimension(:,:) :: yppa
491	<	real( kind = DP ) :: x, y, dy, d2y
492	<	real( kind = DP ) :: del, h, a, b, c, d
493	<
494	<
495	<	integer atype, nx, j
496	<
497	<
498	<	! this spline code assumes that the x points are equally spaced
499	<	! do not attempt to use this code if they are not.
500	<
501	<
502	<	! find the closest point with a value below our own:
503	<	j = FLOOR(dble(nx-1) * (x - xa(1,atype)) / (xa(nx,atype) - xa(1,atype))) + 1
504	<
505	<	! check to make sure we're inside the spline range:
506	<	if ((j.gt.nx).or.(j.lt.1)) call error('eam_splint', &
507	<	'x is outside bounds of spline')
508	<
509	<	! check to make sure we haven't screwed up the calculation of j:
510	<	if ((x.lt.xa(j,atype)).or.(x.gt.xa(j+1,atype))) then
511	<	if (j.ne.nx) then
512	<	call error('eam_splint', &
513	<	'x is outside bounding range')
514	<	endif
515	<	endif
516	<
517	<	del = xa(j+1,atype) - x
518	<	h = xa(j+1,atype) - xa(j,atype)
519	<
520	<	a = del / h
521	<	b = 1.0E0_DP - a
522	<	c = a*(a*a - 1.0E0_DP)*h*h/6.0E0_DP
523	<	d = b*(b*b - 1.0E0_DP)*h*h/6.0E0_DP
524	<
525	<	y = a*ya(j,atype) + b*ya(j+1,atype) + c*yppa(j,atype) + d*yppa(j+1,atype)
526	<
527	<	dy = (ya(j+1,atype)-ya(j,atype))/h &
528	<	- (3.0E0_DP*a*a - 1.0E0_DP)*h*yppa(j,atype)/6.0E0_DP &
529	<	+ (3.0E0_DP*b*b - 1.0E0_DP)*h*yppa(j+1,atype)/6.0E0_DP
530	<
531	<	d2y = a*yppa(j,atype) + b*yppa(j+1,atype)
532	<
533	<	return
534	<	end subroutine eam_splint
535	<
536	<	subroutine eam_spline(atype, nx, xa, ya, yppa, yp1, ypn, boundary)
537	<
538	<	!  include 'headers/sizes.h'
539	<
540	<
541	<	! yp1 and ypn are the first derivatives of y at the two endpoints
542	<	! if boundary is 'L' the lower derivative is used
543	<	! if boundary is 'U' the upper derivative is used
544	<	! if boundary is 'B' then both derivatives are used
545	<	! if boundary is anything else, then both derivatives are assumed to be 0
546	<
547	<	integer nx, i, k, atype, max_array_size
548	<
549	<	real( kind = DP ), dimension(:,:) :: xa
550	<	real( kind = DP ), dimension(:,:) :: ya
551	<	real( kind = DP ), dimension(:,:) :: yppa
552	<	real( kind = DP ), allocatable, dimension(:) :: u
553	<	real( kind = DP ) :: yp1,ypn,un,qn,sig,p
554	<	character boundary
555	<
556	<	max_array_size = size(xa,1)
557	<	allocate(u(max_array_size))
558	<
559	<
560	<	if ((boundary.eq.'l').or.(boundary.eq.'L').or. &
561	<	(boundary.eq.'b').or.(boundary.eq.'B')) then
562	<	yppa(1, atype) = -0.5E0_DP
563	<	u(1) = (3.0E0_DP/(xa(2,atype)-xa(1,atype)))*((ya(2,atype)-&
564	<	ya(1,atype))/(xa(2,atype)-xa(1,atype))-yp1)
565	<	else
566	<	yppa(1,atype) = 0.0E0_DP
567	<	u(1)  = 0.0E0_DP
568	<	endif
569	<
570	<	do i = 2, nx - 1
571	<	sig = (xa(i,atype) - xa(i-1,atype)) / (xa(i+1,atype) - xa(i-1,atype))
572	<	p = sig * yppa(i-1,atype) + 2.0E0_DP
573	<	yppa(i,atype) = (sig - 1.0E0_DP) / p
574	<	u(i) = (6.0E0_DP*((ya(i+1,atype)-ya(i,atype))/(xa(i+1,atype)-xa(i,atype)) - &
575	<	(ya(i,atype)-ya(i-1,atype))/(xa(i,atype)-xa(i-1,atype)))/ &
576	<	(xa(i+1,atype)-xa(i-1,atype)) - sig * u(i-1))/p
577	<	enddo
578	<
579	<	if ((boundary.eq.'u').or.(boundary.eq.'U').or. &
580	<	(boundary.eq.'b').or.(boundary.eq.'B')) then
581	<	qn = 0.5E0_DP
582	<	un = (3.0E0_DP/(xa(nx,atype)-xa(nx-1,atype)))* &
583	<	(ypn-(ya(nx,atype)-ya(nx-1,atype))/(xa(nx,atype)-xa(nx-1,atype)))
584	<	else
585	<	qn = 0.0E0_DP
586	<	un = 0.0E0_DP
587	<	endif
588	<
589	<	yppa(nx,atype)=(un-qn*u(nx-1))/(qn*yppa(nx-1,atype)+1.0E0_DP)
590	<
591	<	do k = nx-1, 1, -1
592	<	yppa(k,atype)=yppa(k,atype)*yppa(k+1,atype)+u(k)
593	<	enddo
594	<
595	<	deallocate(u)
596	<	return
597	<	end subroutine eam_spline
598	<
599	<
600	<
601	<
602	<	end module calc_eam
976	>	end module eam

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