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mform/m_mform_constraint_boundary.f90
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1 !> @brief Module containing implementations of various local m-form constraints, such as:
2 !> - MFormDirichlet, which imposes a Dirichlet boundary condition on an m-form
3 !> - MFormNeumann, which imposes a Neumann boundary condition on a 0-form
4 !> - MFormUniqueness constraint, which imposes a uniqueness constraint on an m-form (e.g., to fix the constant mode in a purely periodic Poisson problem)
5 module m_mform_constraint_boundary
6 use m_bspline, only: BSplineFun
7 use m_common, only: wp
8 use m_mform_basis, only: MFormSpace
9 use m_sparsemat, only: SparseMat
10 use m_tensorprod_indices, only: TensorProdIndices, TensorProdIndexList
11 use m_mform_constraint_abstract, only: MFormConstraintLocal
12 #include "petsc.fi"
13
14 implicit none
15
16 private
17 public :: MFormDirichlet, MFormNeumann, MFormUniqueness
18
19 !> The threshold under which extraction/projection coefficients are considered zero
20 real(wp), parameter :: COEFF_THR = 1e-14_wp
21
22 ! ! > A wrapper for a vector of real numbers
23 ! type VectorWrapper
24 ! !> The data of the vector
25 ! real(wp), allocatable :: data(:)
26 ! end type VectorWrapper
27
28 !> An object that represents a Dirichlet constraint on an m-form space
29 type, extends(MFormConstraintLocal) :: MFormDirichlet
30
31 contains
32 procedure :: init => init_mform_dirichlet
33 procedure :: destroy_derived => destroy_mform_dirichlet
34 end type
35
36 !> An object that represents a Neumann constraint on an m-form space
37 type, extends(MFormConstraintLocal) :: MFormNeumann
38 !> Whether to fix the constant mode in e.g. a Poisson problem
39 logical :: fix_constant
40 contains
41 procedure :: init => init_mform_neumann
42 procedure :: destroy_derived => destroy_mform_neumann
43 end type
44
45 !> An object that represents a uniqueness constraint on an m-form space
46 type, extends(MFormConstraintLocal) :: MFormUniqueness
47 contains
48 procedure :: init => init_mform_uniqueness
49 procedure :: destroy_derived => destroy_mform_uniqueness
50 end type
51
52 ! The constructors are used for derived-type specific parameters, whereas the deferred init method actually initializes the object
53 interface MFormDirichlet
54 module procedure construct_mform_dirichlet
55 end interface
56
57 interface MFormNeumann
58 module procedure construct_mform_neumann
59 end interface
60
61 interface MFormUniqueness
62 module procedure construct_mform_uniqueness
63 end interface
64
65 contains
66
67 !> @brief Construct a Dirichlet constraint on an m-form
68 !>
69 !> @param[in] _(optional)_ bdy_function The function to which the Dirichlet condition is applied (for scalar m-forms)
70 !> @param[in] _(optional)_ bdy_function_x,bdy_function_y,bdy_function_z The functions to which the Dirichlet condition is applied
71 !> (for vector m-forms)
72 !>
73 !> @return The constructed MFormDirichlet object
74 134 pure type(MFormDirichlet) function construct_mform_dirichlet(bdy_function, bdy_function_x, bdy_function_y, bdy_function_z) &
75 result(this)
76
77 use m_common, only: user_function_3d_interface
78 implicit none
79
80 procedure(user_function_3d_interface), optional :: bdy_function, bdy_function_x, bdy_function_y, bdy_function_z
81
82 ! TODO inhomogeneous Dirichlet condition
83 this%is_homogeneous = .not. (present(bdy_function_x) .or. present(bdy_function_y) .or. present(bdy_function_z) .or. &
84
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134 & present(bdy_function))
85
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134 if (.not. this%is_homogeneous) then
86 ! TODO inhomogeneous Dirichlet condition requires some kind of L2 boundary projection
87 error stop "MFormDirichlet::init_mform_dirichlet: inhomogeneous Dirichlet condition is not implemented yet"
88 ! allocate(this%inhomogeneous_values(nr_blocks))
89 end if
90 134 end function construct_mform_dirichlet
91
92 !> @brief Construct a Neumann constraint on an m-form
93 !>
94 !> @param[in] _(optional)_ fix_constant Whether to fix the constant mode (default: .false.)
95 !>
96 !> @return The constructed MFormNeumann object
97 115 pure type(MFormNeumann) function construct_mform_neumann(fix_constant) result(this)
98 implicit none
99
100 logical, intent(in), optional :: fix_constant
101
102
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115 if (present(fix_constant)) then
103 this%fix_constant = fix_constant
104 else
105 this%fix_constant = .false.
106 end if
107 115 end function construct_mform_neumann
108
109 !> @brief Construct a uniqueness constraint on an m-form
110 !> @return The constructed MFormUniqueness object
111 32 pure type(MFormUniqueness) function construct_mform_uniqueness() result(this)
112 implicit none
113
114 32 end function construct_mform_uniqueness
115
116 !> @brief Initialize a Dirichlet constraint on an m-form space
117 !>
118 !> @param[inout] this The MFormDirichlet object to initialize
119 !> @param[in] space The MFormSpace to which the Dirichlet constraint applies
120 !> @param[in] _(optional)_ coord_transform The coordinate transform associated with the m-form space
121 186 subroutine init_mform_dirichlet(this, space, coord_transform)
122 use m_mform_basis, only: MFormSpace
123 use m_coord_transform_abstract, only: CoordTransformAbstract
124 implicit none
125
126 class(MFormDirichlet), intent(inout) :: this
127 type(MFormSpace), intent(in) :: space
128
129 class(CoordTransformAbstract), optional, intent(in) :: coord_transform
130 logical :: coord_has_polar_xy_singularity_
131 integer :: s1, s2, nr_blocks
132
133 186 call this%destroy()
134
135
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186 this%space = space
136
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744 this%is_mpi_shared = .false.
137
138 coord_has_polar_xy_singularity_ = .false.
139
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186 if (present(coord_transform)) coord_has_polar_xy_singularity_ = coord_transform%has_polar_xy_singularity
140
141 312 select case (space%m)
142 case (0)
143 nr_blocks = 1
144
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252 allocate (this%index_list(nr_blocks))
145 call init_tp_boundary_indices(this%index_list(1), space%tp_spaces(1), &
146 126 include_x_left=.not. coord_has_polar_xy_singularity_)
147 case (1)
148 nr_blocks = 3
149 ! Boundary condition is applied to the two tangential components only
150
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160 allocate (this%index_list(nr_blocks))
151
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160 do s1 = 1, 3
152 call init_tp_boundary_indices(this%index_list(s1), space%tp_spaces(s1), &
153 include_x_left=.not. coord_has_polar_xy_singularity_ .and. s1 /= 1, include_x_right=s1 /= 1, &
154 include_y_left=s1 /= 2, include_y_right=s1 /= 2, &
155 160 include_z_left=s1 /= 3, include_z_right=s1 /= 3)
156 end do
157 case (2)
158 nr_blocks = 3
159 ! Boundary condition is applied to the normal component only
160
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48 allocate (this%index_list(nr_blocks))
161
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48 do s1 = 1, 3
162 call init_tp_boundary_indices(this%index_list(s1), space%tp_spaces(s1), &
163 include_x_left=.not. coord_has_polar_xy_singularity_ .and. s1 == 1, include_x_right=s1 == 1, &
164 include_y_left=s1 == 2, include_y_right=s1 == 2, &
165 48 include_z_left=s1 == 3, include_z_right=s1 == 3)
166 end do
167 case (3)
168 nr_blocks = 1
169 ! No boundary condition
170
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16 allocate (this%index_list(nr_blocks))
171 call init_tp_boundary_indices(this%index_list(1), space%tp_spaces(1), &
172 include_x_left=.false., include_x_right=.false., &
173 include_y_left=.false., include_y_right=.false., &
174
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194 include_z_left=.false., include_z_right=.false.)
175 end select
176
177 ! if (nr_blocks == 1 .and. (present(bdy_function_x) .or. present(bdy_function_y) .or. present(bdy_function_z))) then
178 ! error stop "MFormDirichlet::init_mform_dirichlet: inhomogeneous Dirichlet condition for scalar m-form requires the"// &
179 ! & " optional bdy_function argument"
180 ! end if
181 ! if (nr_blocks == 3 .and. present(bdy_function)) then
182 ! error stop "MFormDirichlet::init_mform_dirichlet: inhomogeneous Dirichlet condition for vector m-form requires the"// &
183 ! & " optional bdy_function_x, bdy_function_y and/or bdy_function_z arguments"
184 ! end if
185
186
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1636 allocate (this%projector(nr_blocks, nr_blocks))
187
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476 allocate (this%extractor(nr_blocks))
188
189
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476 do s1 = 1, nr_blocks
190
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892 do s2 = 1, nr_blocks
191
192 ! The projector is simply the zero-matrix
193 602 call this%projector(s1, s2)%init(nr_rows=size(this%index_list(s1)%lin), nr_cols=size(this%index_list(s2)%lin), nr_nonzero=0)
194 892 call this%projector(s1, s2)%finalize()
195 end do
196
197 290 call this%extractor(s1)%init(nr_rows=size(this%index_list(s1)%lin), nr_cols=0, nr_nonzero=0)
198 476 call this%extractor(s1)%finalize()
199 end do
200
201 186 this%is_symmetric = .true.
202 186 end subroutine init_mform_dirichlet
203
204 !> @brief Initialize a Neumann constraint on an m-form space
205 !>
206 !> @param[inout] this The MFormNeumann object to initialize
207 !> @param[in] space The MFormSpace to which the Neumann constraint applies
208 !> @param[in] _(optional)_ coord_transform The coordinate transform associated with the m-form space
209 115 subroutine init_mform_neumann(this, space, coord_transform)
210 use m_mform_basis, only: MFormSpace
211 use m_tensorprod_basis, only: size
212 use m_tensorprod, only: TensorProdIndices, intersect
213 use m_coord_transform_abstract, only: CoordTransformAbstract
214 implicit none
215
216 class(MFormNeumann), intent(inout) :: this
217 type(MFormSpace), intent(in) :: space
218 class(CoordTransformAbstract), optional, intent(in) :: coord_transform
219
220 logical :: coord_has_polar_xy_singularity_
221
222 integer :: nr_blocks, nr_bsplines_x, nr_bsplines_y, nr_bsplines_z, list_size
223 logical :: impose_x_left, impose_x_right
224 integer :: row, col, j, k, rep, nr_per_jk
225
226 type(TensorProdIndices) :: inds, inds_tmp
227
228 115 call this%destroy()
229
230
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115 this%space = space
231
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460 this%is_mpi_shared = .false.
232
233
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115 if (this%space%m /= 0) then
234 error stop "MFormNeumann::init_mform_neumann: Neumann constraint is only defined for 0-forms"
235 end if
236 nr_blocks = 1
237
238 ! For simplicity we don't consider domains with corners
239
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115 if (.not. this%space%tp_spaces(1)%spaces(2)%is_periodic) then
240 error stop "MFormNeumann::init_mform_neumann: Neumann constraint is only compatible with periodicity in the y-direction"
241 end if
242
243
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115 if (.not. (this%space%dimensionality == 2 .or. .not. this%space%tp_spaces(1)%spaces(3)%is_periodic)) then
244 error stop "MFormNeumann::init_mform_neumann: 3D Neumann constraint is only compatible with periodicity in the"// &
245 & " z-direction"
246 end if
247
248 115 this%is_homogeneous = .true.
249 115 this%is_symmetric = .true.
250
251 coord_has_polar_xy_singularity_ = .false.
252
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115 if (present(coord_transform)) coord_has_polar_xy_singularity_ = coord_transform%has_polar_xy_singularity
253
254
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115 if (this%space%tp_spaces(1)%spaces(1)%is_periodic) then
255 impose_x_left = .false.
256 impose_x_right = .false.
257 else
258 115 impose_x_left = .not. coord_has_polar_xy_singularity_
259 impose_x_right = .true.
260 end if
261
262
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230 allocate (this%index_list(nr_blocks))
263
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345 allocate (this%projector(nr_blocks, nr_blocks))
264
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230 allocate (this%extractor(nr_blocks))
265
266
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115 if (.not. impose_x_left .and. .not. impose_x_right) then
267
268 ! No Neumann constraint to impose
269 call inds%empty()
270 call this%index_list(1)%init(inds, this%space%tp_spaces(1)%rank_resp_bspline, this%space%tp_spaces(1)%rank_l0)
271
272 call this%extractor(1)%init(nr_rows=0, nr_cols=0, nr_nonzero=0)
273 call this%extractor(1)%finalize()
274
275 call this%projector(1, 1)%init(nr_rows=0, nr_cols=0, nr_nonzero=0)
276 call this%projector(1, 1)%finalize()
277 else
278 115 nr_bsplines_x = size(this%space%tp_spaces(1), 1)
279 115 nr_bsplines_y = size(this%space%tp_spaces(1), 2)
280 115 nr_bsplines_z = size(this%space%tp_spaces(1), 3)
281
282 call inds_tmp%init(merge(2, 0, impose_x_left), nr_bsplines_x - 3, 0, nr_bsplines_y - 1, 0, nr_bsplines_z - 1, &
283
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230 this%space%tp_spaces(1)%spaces)
284 115 inds = intersect(inds_tmp, this%space%tp_spaces(1)%rank_resp_bspline)
285 115 inds%complement = .true.
286
287 115 call this%index_list(1)%init(inds, this%space%tp_spaces(1)%rank_resp_bspline, this%space%tp_spaces(1)%rank_l0)
288
289 115 list_size = size(this%index_list(1)%lin)
290 115 call this%extractor(1)%init(nr_rows=list_size, nr_cols=list_size / 2, nr_nonzero=list_size)
291
292 nr_per_jk = 1 + merge(1, 0, impose_x_left)
293
294 115 col = 0
295 ! The extractor is a sparse matrix where the i-th column has the (2i - 1)-th and 2i-th row equal to 1
296
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3437 do col = 0, list_size / 2 - 1
297 3322 call this%extractor(1)%insert(2 * col, col, 1.0_wp)
298 3437 call this%extractor(1)%insert(2 * col + 1, col, 1.0_wp)
299 end do
300 115 call this%extractor(1)%finalize()
301
302 115 call this%projector(1, 1)%init(nr_rows=list_size, nr_cols=list_size, nr_nonzero=list_size * 2)
303 ! The projector is block diagonal with 2x2 blocks of the form [1 1; 1 1] / sqrt(2)
304
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3437 do row = 0, list_size - 1, 2
305 3322 call this%projector(1, 1)%insert(row, row, 1.0_wp / sqrt(2.0_wp))
306 3322 call this%projector(1, 1)%insert(row, row + 1, 1.0_wp / sqrt(2.0_wp))
307 3322 call this%projector(1, 1)%insert(row + 1, row, 1.0_wp / sqrt(2.0_wp))
308 3437 call this%projector(1, 1)%insert(row + 1, row + 1, 1.0_wp / sqrt(2.0_wp))
309 end do
310
311 115 call this%projector(1, 1)%finalize()
312 end if
313
314 115 end subroutine init_mform_neumann
315
316 !> @brief Initialize a uniqueness constraint on an m-form space by fixing one global dof to zero.
317 !>
318 !> The constrained dof is the coefficient at (i,j,k)=(0,0,0), applied to only one m-form component.
319 !>
320 !> @param[inout] this The MFormUniqueness object to initialize
321 !> @param[in] space The MFormSpace to which the uniqueness constraint applies
322 !> @param[in] _(optional)_ coord_transform The coordinate transform associated with the m-form space (unused)
323 32 subroutine init_mform_uniqueness(this, space, coord_transform)
324 use m_mform_basis, only: MFormSpace
325 use m_coord_transform_abstract, only: CoordTransformAbstract
326 use m_tensorprod_basis, only: size
327 implicit none
328
329 class(MFormUniqueness), intent(inout) :: this
330 type(MFormSpace), intent(in) :: space
331 class(CoordTransformAbstract), optional, intent(in) :: coord_transform
332
333 integer :: nr_blocks, blk_row, blk_col, constrained_blk
334 logical :: owns_constrained_dof
335 logical :: apply_uniqueness
336 logical :: has_y, has_z
337 type(TensorProdIndices) :: inds
338
339 32 call this%destroy()
340
341
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32 this%space = space
342 32 this%is_homogeneous = .true.
343 32 this%is_symmetric = .true.
344
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128 this%is_mpi_shared = .false.
345
346 32 nr_blocks = size(space%tp_spaces)
347 constrained_blk = 1
348
349 32 has_y = size(space%tp_spaces(1), 2) > 1
350 32 has_z = size(space%tp_spaces(1), 3) > 1
351 apply_uniqueness = space%tp_spaces(1)%spaces(1)%is_periodic .and. &
352 (.not. has_y .or. space%tp_spaces(1)%spaces(2)%is_periodic) .and. &
353
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32 (.not. has_z .or. space%tp_spaces(1)%spaces(3)%is_periodic)
354
355
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128 allocate (this%index_list(nr_blocks))
356
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192 allocate (this%projector(nr_blocks, nr_blocks))
357
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128 allocate (this%extractor(nr_blocks))
358
359
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64 do blk_row = 1, nr_blocks
360
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32 if (apply_uniqueness .and. blk_row == constrained_blk) then
361 owns_constrained_dof = all([ &
362 space%tp_spaces(blk_row)%rank_resp_bspline%i0 <= 0, 0 <= space%tp_spaces(blk_row)%rank_resp_bspline%i1, &
363 space%tp_spaces(blk_row)%rank_resp_bspline%j0 <= 0, 0 <= space%tp_spaces(blk_row)%rank_resp_bspline%j1, &
364
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32 space%tp_spaces(blk_row)%rank_resp_bspline%k0 <= 0, 0 <= space%tp_spaces(blk_row)%rank_resp_bspline%k1 ])
365
366 if (owns_constrained_dof) then
367 32 call inds%init(0, 0, 0, 0, 0, 0, space%tp_spaces(blk_row)%spaces)
368 else
369 call inds%empty()
370 end if
371 else
372 call inds%empty()
373 end if
374
375 32 call this%index_list(blk_row)%init(inds, space%tp_spaces(blk_row)%rank_resp_bspline, space%tp_spaces(blk_row)%rank_l0)
376
377 32 call this%extractor(blk_row)%init(nr_rows=size(this%index_list(blk_row)%lin), nr_cols=0, nr_nonzero=0)
378 32 call this%extractor(blk_row)%finalize()
379
380
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96 do blk_col = 1, nr_blocks
381 call this%projector(blk_row, blk_col)%init(nr_rows=size(this%index_list(blk_row)%lin), &
382 32 nr_cols=size(this%index_list(blk_col)%lin), nr_nonzero=0)
383 64 call this%projector(blk_row, blk_col)%finalize()
384 end do
385 end do
386 32 end subroutine init_mform_uniqueness
387
388 !> @brief Initialize my interior indices (i.e., all indices on my rank minus the boundary) of the B-spline tensor product space
389 !>
390 !> @param[in] tp_bspline The B-spline tensor product space
391 !> @param[in] include_x_left Whether to have a boundary on the left-hand side in the x-direction (default: .true.)
392 !> @param[in] include_x_right Whether to have a boundary on the right-hand side in the x-direction (default: .true.)
393 !> @param[in] include_y_left Whether to have a boundary on the left-hand side in the y-direction (default: .true.)
394 !> @param[in] include_y_right Whether to have a boundary on the right-hand side in the y-direction (default: .true.)
395 !> @param[in] include_z_left Whether to have a boundary on the left-hand side in the z-direction (default: .true.)
396 !> @param[in] include_z_right Whether to have a boundary on the right-hand side in the z-direction (default: .true.)
397 290 pure type(TensorProdIndices) function my_interior_index_range(tp_bspline, include_x_left, include_x_right, &
398 & include_y_left, include_y_right, include_z_left, include_z_right) result(inds)
399
400 use m_tensorprod, only: TensorProdSpace, size, TensorProdIndices, intersect
401 implicit none
402
403 type(TensorProdSpace), intent(in) :: tp_bspline
404 logical, optional, intent(in) :: include_x_left, include_x_right, &
405 include_y_left, include_y_right, &
406 include_z_left, include_z_right
407
408 logical :: include_x_left_, include_x_right_, &
409 include_y_left_, include_y_right_, &
410 include_z_left_, include_z_right_
411 integer :: i0, i1, j0, j1, k0, k1
412 type(TensorProdIndices) :: inds_tmp
413
414 ! By defualt all boundaries are included (unless is_periodic)
415 include_x_left_ = .true.
416
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290 if (present(include_x_left)) include_x_left_ = include_x_left
417 include_x_right_ = .true.
418
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290 if (present(include_x_right)) include_x_right_ = include_x_right
419 include_y_left_ = .true.
420
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290 if (present(include_y_left)) include_y_left_ = include_y_left
421 include_y_right_ = .true.
422
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290 if (present(include_y_right)) include_y_right_ = include_y_right
423 include_z_left_ = .true.
424
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290 if (present(include_z_left)) include_z_left_ = include_z_left
425 include_z_right_ = .true.
426
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290 if (present(include_z_right)) include_z_right_ = include_z_right
427
428 ! Handle lower dim problem (recognized by less than or equal to 1 basis function in that direction):
429
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290 if (size(tp_bspline, 3) <= 1) then
430 include_z_left_ = .false.
431 include_z_right_ = .false.
432
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120 if (size(tp_bspline, 2) <= 1) then
433 include_y_left_ = .false.
434 include_y_right_ = .false.
435 end if
436 end if
437
438
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290 i0 = merge(0, 1, tp_bspline%spaces(1)%is_periodic .or. .not. include_x_left_)
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418 i1 = size(tp_bspline, 1) - 1 - merge(0, 1, tp_bspline%spaces(1)%is_periodic .or. .not. include_x_right_)
440
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290 j0 = merge(0, 1, tp_bspline%spaces(2)%is_periodic .or. .not. include_y_left_)
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488 j1 = size(tp_bspline, 2) - 1 - merge(0, 1, tp_bspline%spaces(2)%is_periodic .or. .not. include_y_right_)
442
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290 k0 = merge(0, 1, tp_bspline%spaces(3)%is_periodic .or. .not. include_z_left_)
443
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538 k1 = size(tp_bspline, 3) - 1 - merge(0, 1, tp_bspline%spaces(3)%is_periodic .or. .not. include_z_right_)
444
445 290 call inds_tmp%init(i0, i1, j0, j1, k0, k1, tp_bspline%spaces)
446 290 inds = intersect(inds_tmp, tp_bspline%rank_resp_bspline)
447 290 end function my_interior_index_range
448
449 !> @brief Initialize my boundary indices (i.e., the indices of the boundary on the current rank) of the B-spline tensor product
450 !> space
451 !>
452 !> @param[inout] boundary The TensorProdIndexList to initialize
453 !> @param[in] tp_bspline The B-spline tensor product space
454 !> @param[in] include_x_left Whether to have a boundary on the left-hand side in the x-direction
455 !> @param[in] include_x_right Whether to have a boundary on the right-hand side in the x-direction
456 !> @param[in] include_y_left Whether to have a boundary on the left-hand side in the y-direction
457 !> @param[in] include_y_right Whether to have a boundary on the right-hand side in the y-direction
458 !> @param[in] include_z_left Whether to have a boundary on the left-hand side in the z-direction
459 !> @param[in] include_z_right Whether to have a boundary on the right-hand side in the z-direction
460 290 subroutine init_tp_boundary_indices(boundary, tp_bspline, include_x_left, include_x_right, &
461 include_y_left, include_y_right, include_z_left, include_z_right)
462
463 use m_tensorprod, only: TensorProdSpace, TensorProdIndices
464 implicit none
465
466 type(TensorProdIndexList), intent(inout) :: boundary
467 type(TensorProdSpace), intent(in) :: tp_bspline
468 logical, optional, intent(in) :: include_x_left, include_x_right, &
469 include_y_left, include_y_right, &
470 include_z_left, include_z_right
471
472 ! Start by determining the interior indices
473 type(TensorProdIndices) :: inds
474
475 inds = my_interior_index_range(tp_bspline, &
476 include_x_left=include_x_left, include_x_right=include_x_right, &
477 include_y_left=include_y_left, include_y_right=include_y_right, &
478 290 include_z_left=include_z_left, include_z_right=include_z_right)
479
480 290 inds%complement = .true. ! NOTE: complement is relative to local B-spline indices of this rank
481
482 290 call boundary%init(inds, tp_bspline%rank_resp_bspline, tp_bspline%rank_l0)
483 290 end subroutine init_tp_boundary_indices
484
485 !> @brief Destroy the MFormDirichlet object
486 !>
487 !> @param[inout] this The MFormDirichlet object to destroy
488 328 subroutine destroy_mform_dirichlet(this)
489 implicit none
490 class(MFormDirichlet), intent(inout) :: this
491
492 328 end subroutine destroy_mform_dirichlet
493
494 !> @brief Destroy the MFormNeumann object
495 !>
496 !> @param[inout] this The MFormNeumann object to destroy
497 230 subroutine destroy_mform_neumann(this)
498 implicit none
499 class(MFormNeumann), intent(inout) :: this
500
501 230 end subroutine destroy_mform_neumann
502
503 !> @brief Destroy the MFormUniqueness object
504 !>
505 !> @param[inout] this The MFormUniqueness object to destroy
506 64 subroutine destroy_mform_uniqueness(this)
507 implicit none
508 class(MFormUniqueness), intent(inout) :: this
509
510 64 end subroutine destroy_mform_uniqueness
511
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867 end module m_mform_constraint_boundary
512