MFC
Exascale flow solver
Loading...
Searching...
No Matches
m_finite_differences.fpp.f90
Go to the documentation of this file.
1# 1 "/home/runner/work/MFC/MFC/src/common/m_finite_differences.fpp"
2!>
3!! @file
4!! @brief Contains module m_finite_differences
5
6# 1 "/home/runner/work/MFC/MFC/src/common/include/macros.fpp" 1
7# 1 "/home/runner/work/MFC/MFC/src/common/include/parallel_macros.fpp" 1
8# 1 "/home/runner/work/MFC/MFC/src/common/include/shared_parallel_macros.fpp" 1
9# 2 "/home/runner/work/MFC/MFC/src/common/include/shared_parallel_macros.fpp"
10# 3 "/home/runner/work/MFC/MFC/src/common/include/shared_parallel_macros.fpp"
11# 4 "/home/runner/work/MFC/MFC/src/common/include/shared_parallel_macros.fpp"
12# 5 "/home/runner/work/MFC/MFC/src/common/include/shared_parallel_macros.fpp"
13# 6 "/home/runner/work/MFC/MFC/src/common/include/shared_parallel_macros.fpp"
14
15# 8 "/home/runner/work/MFC/MFC/src/common/include/shared_parallel_macros.fpp"
16# 9 "/home/runner/work/MFC/MFC/src/common/include/shared_parallel_macros.fpp"
17# 10 "/home/runner/work/MFC/MFC/src/common/include/shared_parallel_macros.fpp"
18
19# 17 "/home/runner/work/MFC/MFC/src/common/include/shared_parallel_macros.fpp"
20
21# 46 "/home/runner/work/MFC/MFC/src/common/include/shared_parallel_macros.fpp"
22
23# 58 "/home/runner/work/MFC/MFC/src/common/include/shared_parallel_macros.fpp"
24
25# 68 "/home/runner/work/MFC/MFC/src/common/include/shared_parallel_macros.fpp"
26
27# 98 "/home/runner/work/MFC/MFC/src/common/include/shared_parallel_macros.fpp"
28
29# 110 "/home/runner/work/MFC/MFC/src/common/include/shared_parallel_macros.fpp"
30
31# 120 "/home/runner/work/MFC/MFC/src/common/include/shared_parallel_macros.fpp"
32
33# 145 "/home/runner/work/MFC/MFC/src/common/include/shared_parallel_macros.fpp"
34! New line at end of file is required for FYPP
35# 2 "/home/runner/work/MFC/MFC/src/common/include/parallel_macros.fpp" 2
36# 1 "/home/runner/work/MFC/MFC/src/common/include/omp_macros.fpp" 1
37# 1 "/home/runner/work/MFC/MFC/src/common/include/shared_parallel_macros.fpp" 1
38# 2 "/home/runner/work/MFC/MFC/src/common/include/shared_parallel_macros.fpp"
39# 3 "/home/runner/work/MFC/MFC/src/common/include/shared_parallel_macros.fpp"
40# 4 "/home/runner/work/MFC/MFC/src/common/include/shared_parallel_macros.fpp"
41# 5 "/home/runner/work/MFC/MFC/src/common/include/shared_parallel_macros.fpp"
42# 6 "/home/runner/work/MFC/MFC/src/common/include/shared_parallel_macros.fpp"
43
44# 8 "/home/runner/work/MFC/MFC/src/common/include/shared_parallel_macros.fpp"
45# 9 "/home/runner/work/MFC/MFC/src/common/include/shared_parallel_macros.fpp"
46# 10 "/home/runner/work/MFC/MFC/src/common/include/shared_parallel_macros.fpp"
47
48# 17 "/home/runner/work/MFC/MFC/src/common/include/shared_parallel_macros.fpp"
49
50# 46 "/home/runner/work/MFC/MFC/src/common/include/shared_parallel_macros.fpp"
51
52# 58 "/home/runner/work/MFC/MFC/src/common/include/shared_parallel_macros.fpp"
53
54# 68 "/home/runner/work/MFC/MFC/src/common/include/shared_parallel_macros.fpp"
55
56# 98 "/home/runner/work/MFC/MFC/src/common/include/shared_parallel_macros.fpp"
57
58# 110 "/home/runner/work/MFC/MFC/src/common/include/shared_parallel_macros.fpp"
59
60# 120 "/home/runner/work/MFC/MFC/src/common/include/shared_parallel_macros.fpp"
61
62# 145 "/home/runner/work/MFC/MFC/src/common/include/shared_parallel_macros.fpp"
63! New line at end of file is required for FYPP
64# 2 "/home/runner/work/MFC/MFC/src/common/include/omp_macros.fpp" 2
65
66# 4 "/home/runner/work/MFC/MFC/src/common/include/omp_macros.fpp"
67# 5 "/home/runner/work/MFC/MFC/src/common/include/omp_macros.fpp"
68# 6 "/home/runner/work/MFC/MFC/src/common/include/omp_macros.fpp"
69# 7 "/home/runner/work/MFC/MFC/src/common/include/omp_macros.fpp"
70# 8 "/home/runner/work/MFC/MFC/src/common/include/omp_macros.fpp"
71
72# 20 "/home/runner/work/MFC/MFC/src/common/include/omp_macros.fpp"
73
74# 43 "/home/runner/work/MFC/MFC/src/common/include/omp_macros.fpp"
75
76# 48 "/home/runner/work/MFC/MFC/src/common/include/omp_macros.fpp"
77
78# 53 "/home/runner/work/MFC/MFC/src/common/include/omp_macros.fpp"
79
80# 58 "/home/runner/work/MFC/MFC/src/common/include/omp_macros.fpp"
81
82# 63 "/home/runner/work/MFC/MFC/src/common/include/omp_macros.fpp"
83
84# 68 "/home/runner/work/MFC/MFC/src/common/include/omp_macros.fpp"
85
86# 76 "/home/runner/work/MFC/MFC/src/common/include/omp_macros.fpp"
87
88# 81 "/home/runner/work/MFC/MFC/src/common/include/omp_macros.fpp"
89
90# 86 "/home/runner/work/MFC/MFC/src/common/include/omp_macros.fpp"
91
92# 91 "/home/runner/work/MFC/MFC/src/common/include/omp_macros.fpp"
93
94# 96 "/home/runner/work/MFC/MFC/src/common/include/omp_macros.fpp"
95
96# 101 "/home/runner/work/MFC/MFC/src/common/include/omp_macros.fpp"
97
98# 106 "/home/runner/work/MFC/MFC/src/common/include/omp_macros.fpp"
99
100# 111 "/home/runner/work/MFC/MFC/src/common/include/omp_macros.fpp"
101
102# 116 "/home/runner/work/MFC/MFC/src/common/include/omp_macros.fpp"
103
104# 121 "/home/runner/work/MFC/MFC/src/common/include/omp_macros.fpp"
105
106# 151 "/home/runner/work/MFC/MFC/src/common/include/omp_macros.fpp"
107
108# 192 "/home/runner/work/MFC/MFC/src/common/include/omp_macros.fpp"
109
110# 206 "/home/runner/work/MFC/MFC/src/common/include/omp_macros.fpp"
111
112# 231 "/home/runner/work/MFC/MFC/src/common/include/omp_macros.fpp"
113
114# 242 "/home/runner/work/MFC/MFC/src/common/include/omp_macros.fpp"
115
116# 244 "/home/runner/work/MFC/MFC/src/common/include/omp_macros.fpp"
117# 255 "/home/runner/work/MFC/MFC/src/common/include/omp_macros.fpp"
118
119# 284 "/home/runner/work/MFC/MFC/src/common/include/omp_macros.fpp"
120
121# 294 "/home/runner/work/MFC/MFC/src/common/include/omp_macros.fpp"
122
123# 304 "/home/runner/work/MFC/MFC/src/common/include/omp_macros.fpp"
124
125# 313 "/home/runner/work/MFC/MFC/src/common/include/omp_macros.fpp"
126
127# 330 "/home/runner/work/MFC/MFC/src/common/include/omp_macros.fpp"
128
129# 340 "/home/runner/work/MFC/MFC/src/common/include/omp_macros.fpp"
130
131# 347 "/home/runner/work/MFC/MFC/src/common/include/omp_macros.fpp"
132
133# 353 "/home/runner/work/MFC/MFC/src/common/include/omp_macros.fpp"
134
135# 359 "/home/runner/work/MFC/MFC/src/common/include/omp_macros.fpp"
136
137# 365 "/home/runner/work/MFC/MFC/src/common/include/omp_macros.fpp"
138
139# 371 "/home/runner/work/MFC/MFC/src/common/include/omp_macros.fpp"
140
141# 377 "/home/runner/work/MFC/MFC/src/common/include/omp_macros.fpp"
142! New line at end of file is required for FYPP
143# 3 "/home/runner/work/MFC/MFC/src/common/include/parallel_macros.fpp" 2
144# 1 "/home/runner/work/MFC/MFC/src/common/include/acc_macros.fpp" 1
145# 1 "/home/runner/work/MFC/MFC/src/common/include/shared_parallel_macros.fpp" 1
146# 2 "/home/runner/work/MFC/MFC/src/common/include/shared_parallel_macros.fpp"
147# 3 "/home/runner/work/MFC/MFC/src/common/include/shared_parallel_macros.fpp"
148# 4 "/home/runner/work/MFC/MFC/src/common/include/shared_parallel_macros.fpp"
149# 5 "/home/runner/work/MFC/MFC/src/common/include/shared_parallel_macros.fpp"
150# 6 "/home/runner/work/MFC/MFC/src/common/include/shared_parallel_macros.fpp"
151
152# 8 "/home/runner/work/MFC/MFC/src/common/include/shared_parallel_macros.fpp"
153# 9 "/home/runner/work/MFC/MFC/src/common/include/shared_parallel_macros.fpp"
154# 10 "/home/runner/work/MFC/MFC/src/common/include/shared_parallel_macros.fpp"
155
156# 17 "/home/runner/work/MFC/MFC/src/common/include/shared_parallel_macros.fpp"
157
158# 46 "/home/runner/work/MFC/MFC/src/common/include/shared_parallel_macros.fpp"
159
160# 58 "/home/runner/work/MFC/MFC/src/common/include/shared_parallel_macros.fpp"
161
162# 68 "/home/runner/work/MFC/MFC/src/common/include/shared_parallel_macros.fpp"
163
164# 98 "/home/runner/work/MFC/MFC/src/common/include/shared_parallel_macros.fpp"
165
166# 110 "/home/runner/work/MFC/MFC/src/common/include/shared_parallel_macros.fpp"
167
168# 120 "/home/runner/work/MFC/MFC/src/common/include/shared_parallel_macros.fpp"
169
170# 145 "/home/runner/work/MFC/MFC/src/common/include/shared_parallel_macros.fpp"
171! New line at end of file is required for FYPP
172# 2 "/home/runner/work/MFC/MFC/src/common/include/acc_macros.fpp" 2
173
174# 7 "/home/runner/work/MFC/MFC/src/common/include/acc_macros.fpp"
175
176# 17 "/home/runner/work/MFC/MFC/src/common/include/acc_macros.fpp"
177
178# 22 "/home/runner/work/MFC/MFC/src/common/include/acc_macros.fpp"
179
180# 27 "/home/runner/work/MFC/MFC/src/common/include/acc_macros.fpp"
181
182# 32 "/home/runner/work/MFC/MFC/src/common/include/acc_macros.fpp"
183
184# 37 "/home/runner/work/MFC/MFC/src/common/include/acc_macros.fpp"
185
186# 42 "/home/runner/work/MFC/MFC/src/common/include/acc_macros.fpp"
187
188# 47 "/home/runner/work/MFC/MFC/src/common/include/acc_macros.fpp"
189
190# 52 "/home/runner/work/MFC/MFC/src/common/include/acc_macros.fpp"
191
192# 57 "/home/runner/work/MFC/MFC/src/common/include/acc_macros.fpp"
193
194# 62 "/home/runner/work/MFC/MFC/src/common/include/acc_macros.fpp"
195
196# 73 "/home/runner/work/MFC/MFC/src/common/include/acc_macros.fpp"
197
198# 78 "/home/runner/work/MFC/MFC/src/common/include/acc_macros.fpp"
199
200# 83 "/home/runner/work/MFC/MFC/src/common/include/acc_macros.fpp"
201
202# 88 "/home/runner/work/MFC/MFC/src/common/include/acc_macros.fpp"
203
204# 103 "/home/runner/work/MFC/MFC/src/common/include/acc_macros.fpp"
205
206# 131 "/home/runner/work/MFC/MFC/src/common/include/acc_macros.fpp"
207
208# 160 "/home/runner/work/MFC/MFC/src/common/include/acc_macros.fpp"
209
210# 175 "/home/runner/work/MFC/MFC/src/common/include/acc_macros.fpp"
211
212# 193 "/home/runner/work/MFC/MFC/src/common/include/acc_macros.fpp"
213
214# 215 "/home/runner/work/MFC/MFC/src/common/include/acc_macros.fpp"
215
216# 244 "/home/runner/work/MFC/MFC/src/common/include/acc_macros.fpp"
217
218# 259 "/home/runner/work/MFC/MFC/src/common/include/acc_macros.fpp"
219
220# 269 "/home/runner/work/MFC/MFC/src/common/include/acc_macros.fpp"
221
222# 278 "/home/runner/work/MFC/MFC/src/common/include/acc_macros.fpp"
223
224# 294 "/home/runner/work/MFC/MFC/src/common/include/acc_macros.fpp"
225
226# 304 "/home/runner/work/MFC/MFC/src/common/include/acc_macros.fpp"
227
228# 311 "/home/runner/work/MFC/MFC/src/common/include/acc_macros.fpp"
229! New line at end of file is required for FYPP
230# 4 "/home/runner/work/MFC/MFC/src/common/include/parallel_macros.fpp" 2
231
232! GPU parallel region (scalar reductions, maxval/minval)
233# 23 "/home/runner/work/MFC/MFC/src/common/include/parallel_macros.fpp"
234
235! GPU parallel loop over threads (most common GPU macro)
236# 43 "/home/runner/work/MFC/MFC/src/common/include/parallel_macros.fpp"
237
238! Required closing for GPU_PARALLEL_LOOP
239# 55 "/home/runner/work/MFC/MFC/src/common/include/parallel_macros.fpp"
240
241! Mark routine for device compilation
242# 112 "/home/runner/work/MFC/MFC/src/common/include/parallel_macros.fpp"
243
244! Declare device-resident data
245# 130 "/home/runner/work/MFC/MFC/src/common/include/parallel_macros.fpp"
246
247! Inner loop within a GPU parallel region
248# 145 "/home/runner/work/MFC/MFC/src/common/include/parallel_macros.fpp"
249
250! Scoped GPU data region
251# 164 "/home/runner/work/MFC/MFC/src/common/include/parallel_macros.fpp"
252
253! Host code with device pointers (for MPI with GPU buffers)
254# 193 "/home/runner/work/MFC/MFC/src/common/include/parallel_macros.fpp"
255
256! Allocate device memory (unscoped)
257# 207 "/home/runner/work/MFC/MFC/src/common/include/parallel_macros.fpp"
258
259! Free device memory
260# 219 "/home/runner/work/MFC/MFC/src/common/include/parallel_macros.fpp"
261
262! Atomic operation on device
263# 231 "/home/runner/work/MFC/MFC/src/common/include/parallel_macros.fpp"
264
265! End atomic capture block
266# 242 "/home/runner/work/MFC/MFC/src/common/include/parallel_macros.fpp"
267
268! Copy data between host and device
269# 254 "/home/runner/work/MFC/MFC/src/common/include/parallel_macros.fpp"
270
271! Synchronization barrier
272# 266 "/home/runner/work/MFC/MFC/src/common/include/parallel_macros.fpp"
273
274! Import GPU library module (openacc or omp_lib)
275# 275 "/home/runner/work/MFC/MFC/src/common/include/parallel_macros.fpp"
276
277! Emit code only for AMD compiler
278# 282 "/home/runner/work/MFC/MFC/src/common/include/parallel_macros.fpp"
279
280! Emit code for non-Cray compilers
281# 289 "/home/runner/work/MFC/MFC/src/common/include/parallel_macros.fpp"
282
283! Emit code only for Cray compiler
284# 296 "/home/runner/work/MFC/MFC/src/common/include/parallel_macros.fpp"
285
286! Emit code for non-NVIDIA compilers
287# 303 "/home/runner/work/MFC/MFC/src/common/include/parallel_macros.fpp"
288
289# 305 "/home/runner/work/MFC/MFC/src/common/include/parallel_macros.fpp"
290# 306 "/home/runner/work/MFC/MFC/src/common/include/parallel_macros.fpp"
291! New line at end of file is required for FYPP
292# 2 "/home/runner/work/MFC/MFC/src/common/include/macros.fpp" 2
293
294# 14 "/home/runner/work/MFC/MFC/src/common/include/macros.fpp"
295
296! Caution: This macro requires the use of a binding script to set CUDA_VISIBLE_DEVICES, such that we have one GPU device per MPI
297! rank. That's because for both cudaMemAdvise (preferred location) and cudaMemPrefetchAsync we use location = device_id = 0. For an
298! example see misc/nvidia_uvm/bind.sh.
299# 57 "/home/runner/work/MFC/MFC/src/common/include/macros.fpp"
300
301! Allocate and create GPU device memory
302# 77 "/home/runner/work/MFC/MFC/src/common/include/macros.fpp"
303
304! Free GPU device memory and deallocate
305# 85 "/home/runner/work/MFC/MFC/src/common/include/macros.fpp"
306
307! Cray-specific GPU pointer setup for vector fields
308# 109 "/home/runner/work/MFC/MFC/src/common/include/macros.fpp"
309
310! Cray-specific GPU pointer setup for scalar fields
311# 125 "/home/runner/work/MFC/MFC/src/common/include/macros.fpp"
312
313! Cray-specific GPU pointer setup for acoustic source spatials
314# 150 "/home/runner/work/MFC/MFC/src/common/include/macros.fpp"
315
316# 156 "/home/runner/work/MFC/MFC/src/common/include/macros.fpp"
317
318# 163 "/home/runner/work/MFC/MFC/src/common/include/macros.fpp"
319! New line at end of file is required for FYPP
320# 6 "/home/runner/work/MFC/MFC/src/common/m_finite_differences.fpp" 2
321
322!> @brief Finite difference operators for computing divergence of velocity fields
323module m_finite_differences
324
325 use m_global_parameters
326
327 implicit none
328
329contains
330
331 !> Compute the centered finite-difference coefficients for first-order spatial derivatives in the s-coordinate direction (x, y,
332 !! or z). Supports up to 4th order accuracy.
333 !! @param fd_coeff_s Finite-diff. coefficients in the s-coordinate direction
334 !! @param local_buff_size Size of the local buffer
335 !! @param fd_number_in Finite-difference number
336 !! @param fd_order_in Finite-difference order of accuracy
337 !! @param offset_s Optional offset bounds in the s-coordinate direction
338 subroutine s_compute_finite_difference_coefficients(q, s_cc, fd_coeff_s, local_buff_size, fd_number_in, fd_order_in, offset_s)
339
340 integer :: lB, lE !< loop bounds
341 integer, intent(in) :: q
342 integer, intent(in) :: local_buff_size, fd_number_in, fd_order_in
343 type(int_bounds_info), optional, intent(in) :: offset_s
344 real(wp), allocatable, dimension(:,:), intent(inout) :: fd_coeff_s
345 real(wp), dimension(-local_buff_size:q + local_buff_size), intent(in) :: s_cc
346 integer :: i !< Generic loop iterator
347
348 if (present(offset_s)) then
349 lb = -offset_s%beg
350 le = q + offset_s%end
351 else
352 lb = 0
353 le = q
354 end if
355
356#ifdef MFC_POST_PROCESS
357 if (allocated(fd_coeff_s)) deallocate (fd_coeff_s)
358 allocate (fd_coeff_s(-fd_number_in:fd_number_in,lb:le))
359#endif
360
361 ! Computing the 1st order finite-difference coefficients
362 if (fd_order_in == 1) then
363 do i = lb, le
364 fd_coeff_s(-1, i) = 0._wp
365 fd_coeff_s(0, i) = -1._wp/(s_cc(i + 1) - s_cc(i))
366 fd_coeff_s(1, i) = -fd_coeff_s(0, i)
367 end do
368
369 ! Computing the 2nd order finite-difference coefficients
370 else if (fd_order_in == 2) then
371 do i = lb, le
372 fd_coeff_s(-1, i) = -1._wp/(s_cc(i + 1) - s_cc(i - 1))
373 fd_coeff_s(0, i) = 0._wp
374 fd_coeff_s(1, i) = -fd_coeff_s(-1, i)
375 end do
376
377 ! Computing the 4th order finite-difference coefficients
378 else
379 do i = lb, le
380 fd_coeff_s(-2, i) = 1._wp/(s_cc(i - 2) - 8._wp*s_cc(i - 1) - s_cc(i + 2) + 8._wp*s_cc(i + 1))
381 fd_coeff_s(-1, i) = -8._wp*fd_coeff_s(-2, i)
382 fd_coeff_s(0, i) = 0._wp
383 fd_coeff_s(1, i) = -fd_coeff_s(-1, i)
384 fd_coeff_s(2, i) = -fd_coeff_s(-2, i)
385 end do
386 end if
387
388 end subroutine s_compute_finite_difference_coefficients
389
390end module m_finite_differences
m_finite_differences
Finite difference operators for computing divergence of velocity fields.
Definition m_finite_differences.fpp.f90:323
m_finite_differences::s_compute_finite_difference_coefficients
subroutine s_compute_finite_difference_coefficients(q, s_cc, fd_coeff_s, local_buff_size, fd_number_in, fd_order_in, offset_s)
Compute the centered finite-difference coefficients for first-order spatial derivatives in the s-coor...
Definition m_finite_differences.fpp.f90:339
m_global_parameters
Global parameters for the computational domain, fluid properties, and simulation algorithm configurat...
Definition m_global_parameters.fpp.f90:334