mod_compute_hh_trafo_real.F90 54.2 KB
Newer Older
1
2
3
4
5
!    This file is part of ELPA.
!
!    The ELPA library was originally created by the ELPA consortium,
!    consisting of the following organizations:
!
6
7
!    - Max Planck Computing and Data Facility (MPCDF), formerly known as
!      Rechenzentrum Garching der Max-Planck-Gesellschaft (RZG),
8
9
10
11
12
13
14
15
16
17
18
19
!    - Bergische Universität Wuppertal, Lehrstuhl für angewandte
!      Informatik,
!    - Technische Universität München, Lehrstuhl für Informatik mit
!      Schwerpunkt Wissenschaftliches Rechnen ,
!    - Fritz-Haber-Institut, Berlin, Abt. Theorie,
!    - Max-Plack-Institut für Mathematik in den Naturwissenschaftrn,
!      Leipzig, Abt. Komplexe Strukutren in Biologie und Kognition,
!      and
!    - IBM Deutschland GmbH
!
!
!    More information can be found here:
20
!    http://elpa.mpcdf.mpg.de/
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
!
!    ELPA is free software: you can redistribute it and/or modify
!    it under the terms of the version 3 of the license of the
!    GNU Lesser General Public License as published by the Free
!    Software Foundation.
!
!    ELPA is distributed in the hope that it will be useful,
!    but WITHOUT ANY WARRANTY; without even the implied warranty of
!    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
!    GNU Lesser General Public License for more details.
!
!    You should have received a copy of the GNU Lesser General Public License
!    along with ELPA.  If not, see <http://www.gnu.org/licenses/>
!
!    ELPA reflects a substantial effort on the part of the original
!    ELPA consortium, and we ask you to respect the spirit of the
!    license that we chose: i.e., please contribute any changes you
!    may have back to the original ELPA library distribution, and keep
!    any derivatives of ELPA under the same license that we chose for
!    the original distribution, the GNU Lesser General Public License.
!
! This file was written by A. Marek, MPCDF

44
45
module compute_hh_trafo_real
#include "config-f90.h"
46
  use elpa_mpi
47
48
49
  implicit none

#ifdef WITH_OPENMP
50
51
52
53
54
55
56
57
  public compute_hh_trafo_real_cpu_openmp_double
#else
  public compute_hh_trafo_real_cpu_double
#endif

#ifdef WANT_SINGLE_PRECISION_REAL
#ifdef WITH_OPENMP
  public compute_hh_trafo_real_cpu_openmp_single
58
#else
59
60
61
62
  public compute_hh_trafo_real_cpu_single
#endif


63
64
65
66
67
#endif

  contains

#ifdef WITH_OPENMP
68
       subroutine compute_hh_trafo_real_cpu_openmp_double(a, a_dev, stripe_width, a_dim2, stripe_count, max_threads, l_nev, &
69
                                                   a_off, nbw, max_blk_size, bcast_buffer, bcast_buffer_dev, hh_dot_dev,    &
70
                                                   hh_tau_dev, kernel_flops, kernel_time, off, ncols, istripe,              &
71
                                                   my_thread, thread_width, THIS_REAL_ELPA_KERNEL)
72
#else
73
       subroutine compute_hh_trafo_real_cpu_double       (a, a_dev, stripe_width, a_dim2, stripe_count,                       &
74
75
76
                                                   a_off, nbw, max_blk_size, bcast_buffer,  bcast_buffer_dev, hh_dot_dev,     &
                                                   hh_tau_dev, kernel_flops, kernel_time, off, ncols, istripe,                &
                                                   last_stripe_width, THIS_REAL_ELPA_KERNEL)
77
78
79
80
#endif


         use precision
81
         use iso_c_binding
82
83
         use elpa2_utilities
         use single_hh_trafo_real
84
85
86
         use cuda_c_kernel
         use cuda_functions

87
#if defined(WITH_REAL_GENERIC_SIMPLE_KERNEL)
88
         use real_generic_simple_kernel !, only : double_hh_trafo_generic_simple
89
90
#endif

91
#if defined(WITH_REAL_GENERIC_KERNEL) && !(defined(DESPERATELY_WANT_ASSUMED_SIZE))
92
        use real_generic_kernel !, only : double_hh_trafo_generic
93
#endif
94
95

#if defined(WITH_REAL_BGP_KERNEL)
96
         use real_bgp_kernel !, only : double_hh_trafo_bgp
97
98
99
#endif

#if defined(WITH_REAL_BGQ_KERNEL)
100
         use real_bgq_kernel !, only : double_hh_trafo_bgq
101
102
103
104
#endif
#ifdef HAVE_DETAILED_TIMINGS
         use timings
#endif
105

106
#if defined(HAVE_AVX) || defined(HAVE_AVX2) || defined(HAVE_SSE_INTRINSICS) || defined(HAVE_SSE_ASSEMBLY)
107
108
         use kernel_interfaces
#endif
109
         implicit none
110
         real(kind=c_double), intent(inout) :: kernel_time  ! MPI_WTIME always needs double
111
112
         integer(kind=lik)            :: kernel_flops
         integer(kind=ik), intent(in) :: nbw, max_blk_size
113
         real(kind=rk8)                :: bcast_buffer(nbw,max_blk_size)
114
115
116
117
118
119
         integer(kind=ik), intent(in) :: a_off

         integer(kind=ik), intent(in) :: stripe_width,a_dim2,stripe_count

#ifndef WITH_OPENMP
         integer(kind=ik), intent(in) :: last_stripe_width
120
!         real(kind=rk8)                :: a(stripe_width,a_dim2,stripe_count)
121
         real(kind=rk8), pointer      :: a(:,:,:)
122
#else
123
         integer(kind=ik), intent(in) :: max_threads, l_nev, thread_width
124
!         real(kind=rk8)                :: a(stripe_width,a_dim2,stripe_count,max_threads)
125
         real(kind=rk8), pointer      :: a(:,:,:,:)
126
127
128
#endif
         integer(kind=ik), intent(in) :: THIS_REAL_ELPA_KERNEL

129
130
131
132
133
         integer(kind=c_intptr_t)     :: a_dev
         integer(kind=c_intptr_t)     :: bcast_buffer_dev
         integer(kind=c_size_t)       :: dev_offset
         integer(kind=c_intptr_t)     :: hh_dot_dev
         integer(kind=c_intptr_t)     :: hh_tau_dev
134
135
136
137
138
139
         ! Private variables in OMP regions (my_thread) should better be in the argument list!
         integer(kind=ik)             :: off, ncols, istripe
#ifdef WITH_OPENMP
         integer(kind=ik)             :: my_thread, noff
#endif
         integer(kind=ik)             :: j, nl, jj, jjj
140
         real(kind=rk8)                :: w(nbw,6)
141
         real(kind=c_double)          :: ttt ! MPI_WTIME always needs double
142

143
144
145
146
147
         if (THIS_REAL_ELPA_KERNEL .eq. REAL_ELPA_KERNEL_GPU) then
           ! ncols - indicates the number of HH reflectors to apply; at least 1 must be available
           if (ncols < 1) return
         endif

148
149
#ifdef HAVE_DETAILED_TIMINGS
#ifdef WITH_OPENMP
150
         call timer%start("compute_hh_trafo_real_cpu_openmp_double")
151
#else
152
         call timer%start("compute_hh_trafo_real_cpu_double")
153
154
155
156
157
158
159
#endif
#endif
         ttt = mpi_wtime()

#ifndef WITH_OPENMP
         nl = merge(stripe_width, last_stripe_width, istripe<stripe_count)
#else
160
161
162
163
         if (THIS_REAL_ELPA_KERNEL .eq. REAL_ELPA_KERNEL_GPU) then
           print *,"compute_hh_trafo_real GPU OPENMP: not yet implemented"
           stop
         endif
164
165
166
167
168
169
170
171
172

         if (istripe<stripe_count) then
           nl = stripe_width
         else
           noff = (my_thread-1)*thread_width + (istripe-1)*stripe_width
           nl = min(my_thread*thread_width-noff, l_nev-noff)
           if (nl<=0) then
#ifdef HAVE_DETAILED_TIMINGS
#ifdef WITH_OPENMP
173
             call timer%stop("compute_hh_trafo_real_cpu_openmp_double")
174
#else
175
             call timer%stop("compute_hh_trafo_real_cpu_double")
176
177
178
179
180
#endif
#endif
             return
           endif
         endif
181
182
183
#endif /* not WITH_OPENMP */

         if (THIS_REAL_ELPA_KERNEL .eq. REAL_ELPA_KERNEL_GPU) then
184
185
           dev_offset = (0 + (a_off * stripe_width) + ( (istripe - 1) * stripe_width *a_dim2 )) *size_of_double_real_datatype
           call launch_compute_hh_trafo_c_kernel_real_double(a_dev + dev_offset, bcast_buffer_dev, hh_dot_dev, &
186
187
                                                      hh_tau_dev, nl, nbw, stripe_width, off, ncols)
         else ! not CUDA kernel
188
189
190

#if defined(WITH_NO_SPECIFIC_REAL_KERNEL)
         if (THIS_REAL_ELPA_KERNEL .eq. REAL_ELPA_KERNEL_AVX_BLOCK2 .or. &
191
             THIS_REAL_ELPA_KERNEL .eq. REAL_ELPA_KERNEL_AVX2_BLOCK2 .or. &
192
             THIS_REAL_ELPA_KERNEL .eq. REAL_ELPA_KERNEL_SSE_BLOCK2 .or. &
193
194
195
196
197
198
199
             THIS_REAL_ELPA_KERNEL .eq. REAL_ELPA_KERNEL_GENERIC    .or. &
             THIS_REAL_ELPA_KERNEL .eq. REAL_ELPA_KERNEL_GENERIC_SIMPLE .or. &
             THIS_REAL_ELPA_KERNEL .eq. REAL_ELPA_KERNEL_SSE .or.        &
             THIS_REAL_ELPA_KERNEL .eq. REAL_ELPA_KERNEL_BGP .or.        &
             THIS_REAL_ELPA_KERNEL .eq. REAL_ELPA_KERNEL_BGQ) then
#endif /* WITH_NO_SPECIFIC_REAL_KERNEL */

200
             !FORTRAN CODE / X86 INRINISIC CODE / BG ASSEMBLER USING 2 HOUSEHOLDER VECTORS
201
202
#if defined(WITH_REAL_GENERIC_KERNEL)
#if defined(WITH_NO_SPECIFIC_REAL_KERNEL)
203
             if (THIS_REAL_ELPA_KERNEL .eq. REAL_ELPA_KERNEL_GENERIC) then
204
205
#endif /* WITH_NO_SPECIFIC_REAL_KERNEL */

206
207
208
               do j = ncols, 2, -2
                 w(:,1) = bcast_buffer(1:nbw,j+off)
                 w(:,2) = bcast_buffer(1:nbw,j+off-1)
209
210

#ifdef WITH_OPENMP
211
#ifdef DESPERATELY_WANT_ASSUMED_SIZE
212
                 call double_hh_trafo_generic_double(a(1,j+off+a_off-1,istripe,my_thread), w, &
213
214
                                            nbw, nl, stripe_width, nbw)

215
#else
216
                 call double_hh_trafo_generic_double(a(1:stripe_width,j+off+a_off-1:j+off+a_off+nbw-1, &
217
                                              istripe,my_thread), w(1:nbw,1:6), &
218
                                              nbw, nl, stripe_width, nbw)
219
220
221
222
223
#endif

#else /* WITH_OPENMP */

#ifdef DESPERATELY_WANT_ASSUMED_SIZE
224
                 call double_hh_trafo_generic_double(a(1,j+off+a_off-1,istripe),w, &
225
226
227
                                            nbw, nl, stripe_width, nbw)

#else
228
                 call double_hh_trafo_generic_double(a(1:stripe_width,j+off+a_off-1:j+off+a_off+nbw-1,istripe),w(1:nbw,1:6), &
229
                                            nbw, nl, stripe_width, nbw)
230
#endif
231
232
#endif /* WITH_OPENMP */

233
               enddo
234
235

#if defined(WITH_NO_SPECIFIC_REAL_KERNEL)
236
             endif
237
238
239
240
241
242
#endif /* WITH_NO_SPECIFIC_REAL_KERNEL */
#endif /* WITH_REAL_GENERIC_KERNEL */


#if defined(WITH_REAL_GENERIC_SIMPLE_KERNEL)
#if defined(WITH_NO_SPECIFIC_REAL_KERNEL)
243
             if (THIS_REAL_ELPA_KERNEL .eq. REAL_ELPA_KERNEL_GENERIC_SIMPLE) then
244
#endif /* WITH_NO_SPECIFIC_REAL_KERNEL */
245
246
247
               do j = ncols, 2, -2
                 w(:,1) = bcast_buffer(1:nbw,j+off)
                 w(:,2) = bcast_buffer(1:nbw,j+off-1)
248
#ifdef WITH_OPENMP
249
#ifdef DESPERATELY_WANT_ASSUMED_SIZE
250
                 call double_hh_trafo_generic_simple_double(a(1,j+off+a_off-1,istripe,my_thread), &
251
                                                       w, nbw, nl, stripe_width, nbw)
252
#else
253
                 call double_hh_trafo_generic_simple_double(a(1:stripe_width,j+off+a_off-1:j+off+a_off-1+nbw,istripe,my_thread), &
254
255
256
257
258
259
                                                     w, nbw, nl, stripe_width, nbw)

#endif

#else /* WITH_OPENMP */
#ifdef DESPERATELY_WANT_ASSUMED_SIZE
260
                 call double_hh_trafo_generic_simple_double(a(1,j+off+a_off-1,istripe), &
261
                                                       w, nbw, nl, stripe_width, nbw)
262
#else
263
                 call double_hh_trafo_generic_simple_double(a(1:stripe_width,j+off+a_off-1:j+off+a_off-1+nbw,istripe), &
264
265
                                                     w, nbw, nl, stripe_width, nbw)

266
#endif
267
268
269

#endif /* WITH_OPENMP */

270
               enddo
271
#if defined(WITH_NO_SPECIFIC_REAL_KERNEL)
272
             endif
273
274
275
276
#endif /* WITH_NO_SPECIFIC_REAL_KERNEL */
#endif /* WITH_REAL_GENERIC_SIMPLE_KERNEL */


277
#if defined(WITH_REAL_SSE_ASSEMBLY_KERNEL)
278
#if defined(WITH_NO_SPECIFIC_REAL_KERNEL)
279
             if (THIS_REAL_ELPA_KERNEL .eq. REAL_ELPA_KERNEL_SSE) then
280
#endif /* WITH_NO_SPECIFIC_REAL_KERNEL */
281
282
283
               do j = ncols, 2, -2
                 w(:,1) = bcast_buffer(1:nbw,j+off)
                 w(:,2) = bcast_buffer(1:nbw,j+off-1)
284
#ifdef WITH_OPENMP
285
                 call double_hh_trafo_double(c_loc(a(1,j+off+a_off-1,istripe,my_thread)), w, nbw, nl, &
286
287
                                      stripe_width, nbw)
#else
288
                 call double_hh_trafo_double(c_loc(a(1,j+off+a_off-1,istripe)), w, nbw, nl, &
289
290
                                      stripe_width, nbw)
#endif
291
               enddo
292
#if defined(WITH_NO_SPECIFIC_REAL_KERNEL)
293
             endif
294
#endif /* WITH_NO_SPECIFIC_REAL_KERNEL */
295
#endif /* WITH_REAL_SSE_ASSEMBLY_KERNEL */
296

297
298
299
300
#if defined(WITH_REAL_SSE_BLOCK2_KERNEL)
#if defined(WITH_NO_SPECIFIC_REAL_KERNEL)
           if (THIS_REAL_ELPA_KERNEL .eq. REAL_ELPA_KERNEL_SSE_BLOCK2) then
#endif /* WITH_NO_SPECIFIC_REAL_KERNEL */
301
302

#if defined(WITH_NO_SPECIFIC_REAL_KERNEL) || (defined(WITH_ONE_SPECIFIC_REAL_KERNEL) && !defined(WITH_REAL_SSE_BLOCK6_KERNEL) && !defined(WITH_REAL_SSE_BLOCK4_KERNEL))
303
304
305
306
             do j = ncols, 2, -2
               w(:,1) = bcast_buffer(1:nbw,j+off)
               w(:,2) = bcast_buffer(1:nbw,j+off-1)
#ifdef WITH_OPENMP
307
               call double_hh_trafo_real_sse_2hv_double(c_loc(a(1,j+off+a_off-1,istripe,my_thread)), &
308
309
                                                       w, nbw, nl, stripe_width, nbw)
#else
310
               call double_hh_trafo_real_sse_2hv_double(c_loc(a(1,j+off+a_off-1,istripe)), &
311
312
313
                                                       w, nbw, nl, stripe_width, nbw)
#endif
             enddo
314
315
#endif /* defined(WITH_NO_SPECIFIC_REAL_KERNEL) || (defined(WITH_ONE_SPECIFIC_REAL_KERNEL) && !defined(WITH_REAL_SSE_BLOCK6_KERNEL) && !defined(WITH_REAL_SSE_BLOCK4_KERNEL)) */

316
317
318
319
#if defined(WITH_NO_SPECIFIC_REAL_KERNEL)
           endif
#endif /* WITH_NO_SPECIFIC_REAL_KERNEL */
#endif /* WITH_REAL_SSE_BLOCK2_KERNEL */
320

321
#if defined(WITH_REAL_AVX_BLOCK2_KERNEL) || defined(WITH_REAL_AVX2_BLOCK2_KERNEL)
322
#if defined(WITH_NO_SPECIFIC_REAL_KERNEL)
323

324
325
           if ((THIS_REAL_ELPA_KERNEL .eq. REAL_ELPA_KERNEL_AVX_BLOCK2) .or. &
               (THIS_REAL_ELPA_KERNEL .eq. REAL_ELPA_KERNEL_AVX2_BLOCK2))  then
326
#endif /* WITH_NO_SPECIFIC_REAL_KERNEL */
327
328

#if defined(WITH_NO_SPECIFIC_REAL_KERNEL) || (defined(WITH_ONE_SPECIFIC_REAL_KERNEL) && !defined(WITH_REAL_AVX_BLOCK6_KERNEL) && !defined(WITH_REAL_AVX_BLOCK4_KERNEL) && !defined(WITH_REAL_AVX2_BLOCK6_KERNEL) && !defined(WITH_REAL_AVX2_BLOCK4_KERNEL))
329
330
331
               do j = ncols, 2, -2
                 w(:,1) = bcast_buffer(1:nbw,j+off)
                 w(:,2) = bcast_buffer(1:nbw,j+off-1)
332
#ifdef WITH_OPENMP
333

334
               call double_hh_trafo_real_avx_avx2_2hv_double(c_loc(a(1,j+off+a_off-1,istripe,my_thread)), &
335
336
                                                       w, nbw, nl, stripe_width, nbw)
#else
337
               call double_hh_trafo_real_avx_avx2_2hv_double(c_loc(a(1,j+off+a_off-1,istripe)), &
338
339
340
                                                       w, nbw, nl, stripe_width, nbw)
#endif
               enddo
341
342
#endif /* defined(WITH_NO_SPECIFIC_REAL_KERNEL) || (defined(WITH_ONE_SPECIFIC_REAL_KERNEL) ... */

343
344
345
#if defined(WITH_NO_SPECIFIC_REAL_KERNEL)
             endif
#endif /* WITH_NO_SPECIFIC_REAL_KERNEL */
346
#endif /* WITH_REAL_AVX_BLOCK2_KERNEL || WITH_REAL_AVX2_BLOCK2_KERNEL */
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389

#if defined(WITH_REAL_BGP_KERNEL)
#if defined(WITH_NO_SPECIFIC_REAL_KERNEL)
             if (THIS_REAL_ELPA_KERNEL .eq. REAL_ELPA_KERNEL_BGP) then
#endif /* WITH_NO_SPECIFIC_REAL_KERNEL */
               do j = ncols, 2, -2
                 w(:,1) = bcast_buffer(1:nbw,j+off)
                 w(:,2) = bcast_buffer(1:nbw,j+off-1)
#ifdef WITH_OPENMP
                 call double_hh_trafo_bgp_double(a(1,j+off+a_off-1,istripe,my_thread), w, nbw, nl, &
                                          stripe_width, nbw)
#else
                 call double_hh_trafo_bgp_double(a(1,j+off+a_off-1,istripe), w, nbw, nl, &
                                          stripe_width, nbw)
#endif
               enddo
#if defined(WITH_NO_SPECIFIC_REAL_KERNEL)
             endif
#endif /* WITH_NO_SPECIFIC_REAL_KERNEL */
#endif /* WITH_REAL_BGP_KERNEL */

#if defined(WITH_REAL_BGQ_KERNEL)
#if defined(WITH_NO_SPECIFIC_REAL_KERNEL)
             if (THIS_REAL_ELPA_KERNEL .eq. REAL_ELPA_KERNEL_BGQ) then
#endif /* WITH_NO_SPECIFIC_REAL_KERNEL */
               do j = ncols, 2, -2
                 w(:,1) = bcast_buffer(1:nbw,j+off)
                 w(:,2) = bcast_buffer(1:nbw,j+off-1)
#ifdef WITH_OPENMP
                 call double_hh_trafo_bgq_double(a(1,j+off+a_off-1,istripe,my_thread), w, nbw, nl, &
                                          stripe_width, nbw)
#else
                 call double_hh_trafo_bgq_double(a(1,j+off+a_off-1,istripe), w, nbw, nl, &
                                          stripe_width, nbw)
#endif
               enddo
#if defined(WITH_NO_SPECIFIC_REAL_KERNEL)
             endif
#endif /* WITH_NO_SPECIFIC_REAL_KERNEL */
#endif /* WITH_REAL_BGQ_KERNEL */


!#if defined(WITH_AVX_SANDYBRIDGE)
390
!              call double_hh_trafo_real_avx_avx2_2hv(a(1,j+off+a_off-1,istripe), w, nbw, nl, stripe_width, nbw)
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
!#endif

#ifdef WITH_OPENMP
             if (j==1) call single_hh_trafo_real_cpu_openmp_double(a(1:stripe_width, &
                                      1+off+a_off:1+off+a_off+nbw-1,istripe,my_thread), &
                                      bcast_buffer(1:nbw,off+1), nbw, nl,     &
                                      stripe_width)
#else
             if (j==1) call single_hh_trafo_real_cpu_double(a(1:stripe_width,1+off+a_off:1+off+a_off+nbw-1,istripe),           &
                                      bcast_buffer(1:nbw,off+1), nbw, nl,     &
                                      stripe_width)
#endif


#if defined(WITH_NO_SPECIFIC_REAL_KERNEL)
           endif !
#endif /* WITH_NO_SPECIFIC_REAL_KERNEL */

409
410
411
412
#if defined(WITH_REAL_SSE_BLOCK4_KERNEL)
#if defined(WITH_NO_SPECIFIC_REAL_KERNEL)
           if (THIS_REAL_ELPA_KERNEL .eq. REAL_ELPA_KERNEL_SSE_BLOCK4) then
#endif /* WITH_NO_SPECIFIC_REAL_KERNEL */
413
414

#if defined(WITH_NO_SPECIFIC_REAL_KERNEL) || (defined(WITH_ONE_SPECIFIC_REAL_KERNEL) && !defined(WITH_REAL_SSE_BLOCK6_KERNEL))
415
416
417
418
419
420
421
             ! X86 INTRINSIC CODE, USING 4 HOUSEHOLDER VECTORS
             do j = ncols, 4, -4
               w(:,1) = bcast_buffer(1:nbw,j+off)
               w(:,2) = bcast_buffer(1:nbw,j+off-1)
               w(:,3) = bcast_buffer(1:nbw,j+off-2)
               w(:,4) = bcast_buffer(1:nbw,j+off-3)
#ifdef WITH_OPENMP
422
               call quad_hh_trafo_real_sse_4hv_double(c_loc(a(1,j+off+a_off-3,istripe,my_thread)), w, &
423
424
                                                  nbw, nl, stripe_width, nbw)
#else
425
               call quad_hh_trafo_real_sse_4hv_double(c_loc(a(1,j+off+a_off-3,istripe)), w, &
426
427
428
429
430
431
432
                                                  nbw, nl, stripe_width, nbw)
#endif
             enddo
             do jj = j, 2, -2
               w(:,1) = bcast_buffer(1:nbw,jj+off)
               w(:,2) = bcast_buffer(1:nbw,jj+off-1)
#ifdef WITH_OPENMP
433
               call double_hh_trafo_real_sse_2hv_double(c_loc(a(1,jj+off+a_off-1,istripe,my_thread)), &
434
435
                                                    w, nbw, nl, stripe_width, nbw)
#else
436
               call double_hh_trafo_real_sse_2hv_double(c_loc(a(1,jj+off+a_off-1,istripe)), &
437
438
439
440
                                                    w, nbw, nl, stripe_width, nbw)
#endif
             enddo
#ifdef WITH_OPENMP
441
442
             if (jj==1) call single_hh_trafo_real_cpu_openmp_double(a(1:stripe_width,1+off+a_off:1+off+a_off+nbw-1, &
                                                                     istripe,my_thread), &
443
444
445
446
447
                                          bcast_buffer(1:nbw,off+1), nbw, nl, stripe_width)
#else
             if (jj==1) call single_hh_trafo_real_cpu_double(a(1:stripe_width,1+off+a_off:1+off+a_off+nbw-1,istripe), &
                                          bcast_buffer(1:nbw,off+1), nbw, nl, stripe_width)
#endif
448
449
450

#endif /* defined(WITH_NO_SPECIFIC_REAL_KERNEL) || (defined(WITH_ONE_SPECIFIC_REAL_KERNEL) && !defined(WITH_REAL_SSE_BLOCK6_KERNEL)) */

451
452
453
454
455
456
#if defined(WITH_NO_SPECIFIC_REAL_KERNEL)
           endif
#endif /* WITH_NO_SPECIFIC_REAL_KERNEL */
#endif /* WITH_REAL_SSE_BLOCK4_KERNEL */


457
#if defined(WITH_REAL_AVX_BLOCK4_KERNEL) || defined(WITH_REAL_AVX2_BLOCK4_KERNEL)
458
#if defined(WITH_NO_SPECIFIC_REAL_KERNEL)
459
460
           if ((THIS_REAL_ELPA_KERNEL .eq. REAL_ELPA_KERNEL_AVX_BLOCK4) .or. &
               (THIS_REAL_ELPA_KERNEL .eq. REAL_ELPA_KERNEL_AVX2_BLOCK4) ) then
461
#endif /* WITH_NO_SPECIFIC_REAL_KERNEL */
462
463

#if defined(WITH_NO_SPECIFIC_REAL_KERNEL) || (defined(WITH_ONE_SPECIFIC_REAL_KERNEL) && !defined(WITH_REAL_AVX_BLOCK6_KERNEL) && !defined(WITH_REAL_AVX2_BLOCK6_KERNEL))
464
465
466
467
468
469
470
             ! X86 INTRINSIC CODE, USING 4 HOUSEHOLDER VECTORS
             do j = ncols, 4, -4
               w(:,1) = bcast_buffer(1:nbw,j+off)
               w(:,2) = bcast_buffer(1:nbw,j+off-1)
               w(:,3) = bcast_buffer(1:nbw,j+off-2)
               w(:,4) = bcast_buffer(1:nbw,j+off-3)
#ifdef WITH_OPENMP
471
               call quad_hh_trafo_real_avx_avx2_4hv_double(c_loc(a(1,j+off+a_off-3,istripe,my_thread)), w, &
472
473
                                                  nbw, nl, stripe_width, nbw)
#else
474
               call quad_hh_trafo_real_avx_avx2_4hv_double(c_loc(a(1,j+off+a_off-3,istripe)), w, &
475
476
477
478
479
480
481
                                                  nbw, nl, stripe_width, nbw)
#endif
             enddo
             do jj = j, 2, -2
               w(:,1) = bcast_buffer(1:nbw,jj+off)
               w(:,2) = bcast_buffer(1:nbw,jj+off-1)
#ifdef WITH_OPENMP
482
               call double_hh_trafo_real_avx_avx2_2hv_double(c_loc(a(1,jj+off+a_off-1,istripe,my_thread)), &
483
484
                                                    w, nbw, nl, stripe_width, nbw)
#else
485
               call double_hh_trafo_real_avx_avx2_2hv_double(c_loc(a(1,jj+off+a_off-1,istripe)), &
486
487
488
489
                                                    w, nbw, nl, stripe_width, nbw)
#endif
             enddo
#ifdef WITH_OPENMP
490
491
             if (jj==1) call single_hh_trafo_real_cpu_openmp_double(a(1:stripe_width,1+off+a_off:1+off+a_off+nbw-1, &
                                                                      istripe,my_thread), &
492
493
494
495
496
                                          bcast_buffer(1:nbw,off+1), nbw, nl, stripe_width)
#else
             if (jj==1) call single_hh_trafo_real_cpu_double(a(1:stripe_width,1+off+a_off:1+off+a_off+nbw-1,istripe), &
                                          bcast_buffer(1:nbw,off+1), nbw, nl, stripe_width)
#endif
497
498
499

#endif /* defined(WITH_NO_SPECIFIC_REAL_KERNEL) || (defined(WITH_ONE_SPECIFIC_REAL_KERNEL) && !defined(WITH_REAL_AVX_BLOCK6_KERNEL) && !defined(WITH_REAL_AVX2_BLOCK6_KERNEL)) */

500
501
502
#if defined(WITH_NO_SPECIFIC_REAL_KERNEL)
           endif
#endif /* WITH_NO_SPECIFIC_REAL_KERNEL */
503
#endif /* WITH_REAL_AVX_BLOCK4_KERNEL || WITH_REAL_AVX2_BLOCK4_KERNEL */
504

505
506
507
508
509
510
511
512
513
514
515
516
517
#if defined(WITH_REAL_SSE_BLOCK6_KERNEL)
#if defined(WITH_NO_SPECIFIC_REAL_KERNEL)
           if (THIS_REAL_ELPA_KERNEL .eq. REAL_ELPA_KERNEL_SSE_BLOCK6) then
#endif /* WITH_NO_SPECIFIC_REAL_KERNEL */
             ! X86 INTRINSIC CODE, USING 6 HOUSEHOLDER VECTORS
             do j = ncols, 6, -6
               w(:,1) = bcast_buffer(1:nbw,j+off)
               w(:,2) = bcast_buffer(1:nbw,j+off-1)
               w(:,3) = bcast_buffer(1:nbw,j+off-2)
               w(:,4) = bcast_buffer(1:nbw,j+off-3)
               w(:,5) = bcast_buffer(1:nbw,j+off-4)
               w(:,6) = bcast_buffer(1:nbw,j+off-5)
#ifdef WITH_OPENMP
518
               call hexa_hh_trafo_real_sse_6hv_double(c_loc(a(1,j+off+a_off-5,istripe,my_thread)), w, &
519
520
                                                  nbw, nl, stripe_width, nbw)
#else
521
               call hexa_hh_trafo_real_sse_6hv_double(c_loc(a(1,j+off+a_off-5,istripe)), w, &
522
523
524
525
526
527
528
529
530
                                                  nbw, nl, stripe_width, nbw)
#endif
             enddo
             do jj = j, 4, -4
               w(:,1) = bcast_buffer(1:nbw,jj+off)
               w(:,2) = bcast_buffer(1:nbw,jj+off-1)
               w(:,3) = bcast_buffer(1:nbw,jj+off-2)
               w(:,4) = bcast_buffer(1:nbw,jj+off-3)
#ifdef WITH_OPENMP
531
               call quad_hh_trafo_real_sse_4hv_double(c_loc(a(1,jj+off+a_off-3,istripe,my_thread)), w, &
532
533
                                                  nbw, nl, stripe_width, nbw)
#else
534
               call quad_hh_trafo_real_sse_4hv_double(c_loc(a(1,jj+off+a_off-3,istripe)), w, &
535
536
537
538
539
540
541
                                                  nbw, nl, stripe_width, nbw)
#endif
             enddo
             do jjj = jj, 2, -2
               w(:,1) = bcast_buffer(1:nbw,jjj+off)
               w(:,2) = bcast_buffer(1:nbw,jjj+off-1)
#ifdef WITH_OPENMP
542
               call double_hh_trafo_real_sse_2hv_double(c_loc(a(1,jjj+off+a_off-1,istripe,my_thread)), &
543
544
                                                    w, nbw, nl, stripe_width, nbw)
#else
545
               call double_hh_trafo_real_sse_2hv_double(c_loc(a(1,jjj+off+a_off-1,istripe)), &
546
547
548
549
                                                    w, nbw, nl, stripe_width, nbw)
#endif
             enddo
#ifdef WITH_OPENMP
550
551
             if (jjj==1) call single_hh_trafo_real_cpu_openmp_double(a(1:stripe_width,1+off+a_off:1+off+a_off+nbw-1, &
                                                                        istripe,my_thread), &
552
553
554
555
556
557
558
559
560
561
                                           bcast_buffer(1:nbw,off+1), nbw, nl, stripe_width)
#else
             if (jjj==1) call single_hh_trafo_real_cpu_double(a(1:stripe_width,1+off+a_off:1+off+a_off+nbw-1,istripe), &
                                           bcast_buffer(1:nbw,off+1), nbw, nl, stripe_width)
#endif
#if defined(WITH_NO_SPECIFIC_REAL_KERNEL)
           endif
#endif /* WITH_NO_SPECIFIC_REAL_KERNEL */
#endif /* WITH_REAL_SSE_BLOCK4_KERNEL */

562

563
#if defined(WITH_REAL_AVX_BLOCK6_KERNEL) || defined(WITH_REAL_AVX2_BLOCK6_KERNEL)
564
#if defined(WITH_NO_SPECIFIC_REAL_KERNEL)
565
566
           if ((THIS_REAL_ELPA_KERNEL .eq. REAL_ELPA_KERNEL_AVX_BLOCK6) .or. &
               (THIS_REAL_ELPA_KERNEL .eq. REAL_ELPA_KERNEL_AVX2_BLOCK6)) then
567
568
569
570
571
572
573
574
575
576
#endif /* WITH_NO_SPECIFIC_REAL_KERNEL */
             ! X86 INTRINSIC CODE, USING 6 HOUSEHOLDER VECTORS
             do j = ncols, 6, -6
               w(:,1) = bcast_buffer(1:nbw,j+off)
               w(:,2) = bcast_buffer(1:nbw,j+off-1)
               w(:,3) = bcast_buffer(1:nbw,j+off-2)
               w(:,4) = bcast_buffer(1:nbw,j+off-3)
               w(:,5) = bcast_buffer(1:nbw,j+off-4)
               w(:,6) = bcast_buffer(1:nbw,j+off-5)
#ifdef WITH_OPENMP
577
               call hexa_hh_trafo_real_avx_avx2_6hv_double(c_loc(a(1,j+off+a_off-5,istripe,my_thread)), w, &
578
579
                                                  nbw, nl, stripe_width, nbw)
#else
580
               call hexa_hh_trafo_real_avx_avx2_6hv_double(c_loc(a(1,j+off+a_off-5,istripe)), w, &
581
582
583
584
585
586
587
588
589
                                                  nbw, nl, stripe_width, nbw)
#endif
             enddo
             do jj = j, 4, -4
               w(:,1) = bcast_buffer(1:nbw,jj+off)
               w(:,2) = bcast_buffer(1:nbw,jj+off-1)
               w(:,3) = bcast_buffer(1:nbw,jj+off-2)
               w(:,4) = bcast_buffer(1:nbw,jj+off-3)
#ifdef WITH_OPENMP
590
               call quad_hh_trafo_real_avx_avx2_4hv_double(c_loc(a(1,jj+off+a_off-3,istripe,my_thread)), w, &
591
592
                                                  nbw, nl, stripe_width, nbw)
#else
593
               call quad_hh_trafo_real_avx_avx2_4hv_double(c_loc(a(1,jj+off+a_off-3,istripe)), w, &
594
595
596
597
598
599
600
                                                  nbw, nl, stripe_width, nbw)
#endif
             enddo
             do jjj = jj, 2, -2
               w(:,1) = bcast_buffer(1:nbw,jjj+off)
               w(:,2) = bcast_buffer(1:nbw,jjj+off-1)
#ifdef WITH_OPENMP
601
               call double_hh_trafo_real_avx_avx2_2hv_double(c_loc(a(1,jjj+off+a_off-1,istripe,my_thread)), &
602
603
                                                    w, nbw, nl, stripe_width, nbw)
#else
604
               call double_hh_trafo_real_avx_avx2_2hv_double(c_loc(a(1,jjj+off+a_off-1,istripe)), &
605
606
607
608
                                                    w, nbw, nl, stripe_width, nbw)
#endif
             enddo
#ifdef WITH_OPENMP
609
610
             if (jjj==1) call single_hh_trafo_real_cpu_openmp_double(a(1:stripe_width,1+off+a_off:1+off+a_off+nbw-1, &
                                                                       istripe,my_thread), &
611
612
613
614
615
616
617
618
                                           bcast_buffer(1:nbw,off+1), nbw, nl, stripe_width)
#else
             if (jjj==1) call single_hh_trafo_real_cpu_double(a(1:stripe_width,1+off+a_off:1+off+a_off+nbw-1,istripe), &
                                           bcast_buffer(1:nbw,off+1), nbw, nl, stripe_width)
#endif
#if defined(WITH_NO_SPECIFIC_REAL_KERNEL)
           endif
#endif /* WITH_NO_SPECIFIC_REAL_KERNEL */
619
#endif /* WITH_REAL_AVX_BLOCK6_KERNEL || WITH_REAL_AVX2_BLOCK6_KERNEL */
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685

         endif ! GPU_KERNEL

#ifdef WITH_OPENMP
         if (my_thread==1) then
#endif
           kernel_flops = kernel_flops + 4*int(nl,8)*int(ncols,8)*int(nbw,8)
           kernel_time = kernel_time + mpi_wtime()-ttt
#ifdef WITH_OPENMP
         endif
#endif
#ifdef HAVE_DETAILED_TIMINGS
#ifdef WITH_OPENMP
         call timer%stop("compute_hh_trafo_real_cpu_openmp_double")
#else
         call timer%stop("compute_hh_trafo_real_cpu_double")
#endif
#endif

#ifdef WITH_OPENMP
       end subroutine compute_hh_trafo_real_cpu_openmp_double
#else
       end subroutine compute_hh_trafo_real_cpu_double
#endif

#ifdef WANT_SINGLE_PRECISION_REAL
! SINGLE PRECISION IMPLEMENTATION AT THE MOMENT DUPLICATED !!!

#ifdef WITH_OPENMP
       subroutine compute_hh_trafo_real_cpu_openmp_single(a, a_dev, stripe_width, a_dim2, stripe_count, max_threads, l_nev, &
                                                   a_off, nbw, max_blk_size, bcast_buffer, bcast_buffer_dev, hh_dot_dev,    &
                                                   hh_tau_dev, kernel_flops, kernel_time, off, ncols, istripe,              &
                                                   my_thread, thread_width, THIS_REAL_ELPA_KERNEL)
#else
       subroutine compute_hh_trafo_real_cpu_single       (a, a_dev, stripe_width, a_dim2, stripe_count,                      &
                                                   a_off, nbw, max_blk_size, bcast_buffer,  bcast_buffer_dev, hh_dot_dev,     &
                                                   hh_tau_dev, kernel_flops, kernel_time, off, ncols, istripe,                &
                                                   last_stripe_width, THIS_REAL_ELPA_KERNEL)
#endif


         use precision
         use iso_c_binding
         use elpa2_utilities
         use single_hh_trafo_real
         use cuda_c_kernel
         use cuda_functions

#if defined(WITH_REAL_GENERIC_SIMPLE_KERNEL)
         use real_generic_simple_kernel !, only : double_hh_trafo_generic_simple
#endif

#if defined(WITH_REAL_GENERIC_KERNEL) && !(defined(DESPERATELY_WANT_ASSUMED_SIZE))
        use real_generic_kernel !, only : double_hh_trafo_generic
#endif

#if defined(WITH_REAL_BGP_KERNEL)
         use real_bgp_kernel !, only : double_hh_trafo_bgp
#endif

#if defined(WITH_REAL_BGQ_KERNEL)
         use real_bgq_kernel !, only : double_hh_trafo_bgq
#endif
#ifdef HAVE_DETAILED_TIMINGS
         use timings
#endif
686

687
#if defined(HAVE_AVX) || defined(HAVE_AVX2) || defined(HAVE_SSE_INTRINSICS) || defined(HAVE_SSE_ASSEMBLY)
688
689
         use kernel_interfaces
#endif
690
691
692
693
694
695
696
697
698
699
700
701
         implicit none
         real(kind=c_double), intent(inout) :: kernel_time  ! MPI_WTIME always needs double
         integer(kind=lik)            :: kernel_flops
         integer(kind=ik), intent(in) :: nbw, max_blk_size
         real(kind=rk4)                :: bcast_buffer(nbw,max_blk_size)
         integer(kind=ik), intent(in) :: a_off

         integer(kind=ik), intent(in) :: stripe_width,a_dim2,stripe_count

#ifndef WITH_OPENMP
         integer(kind=ik), intent(in) :: last_stripe_width
!         real(kind=rk4)                :: a(stripe_width,a_dim2,stripe_count)
702
         real(kind=rk4), pointer      :: a(:,:,:)
703
704
705
#else
         integer(kind=ik), intent(in) :: max_threads, l_nev, thread_width
!         real(kind=rk8)                :: a(stripe_width,a_dim2,stripe_count,max_threads)
706
         real(kind=rk4), pointer      :: a(:,:,:,:)
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
#endif
         integer(kind=ik), intent(in) :: THIS_REAL_ELPA_KERNEL

         integer(kind=c_intptr_t)     :: a_dev
         integer(kind=c_intptr_t)     :: bcast_buffer_dev
         integer(kind=c_size_t)       :: dev_offset
         integer(kind=c_intptr_t)     :: hh_dot_dev
         integer(kind=c_intptr_t)     :: hh_tau_dev
         ! Private variables in OMP regions (my_thread) should better be in the argument list!
         integer(kind=ik)             :: off, ncols, istripe
#ifdef WITH_OPENMP
         integer(kind=ik)             :: my_thread, noff
#endif
         integer(kind=ik)             :: j, nl, jj, jjj
         real(kind=rk4)                :: w(nbw,6)
         real(kind=c_double)          :: ttt ! MPI_WTIME always needs double

         if (THIS_REAL_ELPA_KERNEL .eq. REAL_ELPA_KERNEL_GPU) then
           ! ncols - indicates the number of HH reflectors to apply; at least 1 must be available
           if (ncols < 1) return
         endif

#ifdef HAVE_DETAILED_TIMINGS
#ifdef WITH_OPENMP
         call timer%start("compute_hh_trafo_real_cpu_openmp_single")
#else
         call timer%start("compute_hh_trafo_real_cpu_single")
#endif
#endif
         ttt = mpi_wtime()

#ifndef WITH_OPENMP
         nl = merge(stripe_width, last_stripe_width, istripe<stripe_count)
#else
         if (THIS_REAL_ELPA_KERNEL .eq. REAL_ELPA_KERNEL_GPU) then
           print *,"compute_hh_trafo_real GPU OPENMP: not yet implemented"
           stop
         endif

         if (istripe<stripe_count) then
           nl = stripe_width
         else
           noff = (my_thread-1)*thread_width + (istripe-1)*stripe_width
           nl = min(my_thread*thread_width-noff, l_nev-noff)
           if (nl<=0) then
#ifdef HAVE_DETAILED_TIMINGS
#ifdef WITH_OPENMP
             call timer%stop("compute_hh_trafo_real_cpu_openmp_single")
#else
             call timer%stop("compute_hh_trafo_real_cpu_single")
#endif
#endif
             return
           endif
         endif
#endif /* not WITH_OPENMP */

         if (THIS_REAL_ELPA_KERNEL .eq. REAL_ELPA_KERNEL_GPU) then
           dev_offset = (0 + (a_off * stripe_width) + ( (istripe - 1) * stripe_width *a_dim2 )) *size_of_single_real_datatype
           call launch_compute_hh_trafo_c_kernel_real_single(a_dev + dev_offset, bcast_buffer_dev, hh_dot_dev, &
                                                      hh_tau_dev, nl, nbw, stripe_width, off, ncols)
         else ! not CUDA kernel

#if defined(WITH_NO_SPECIFIC_REAL_KERNEL)
           if (THIS_REAL_ELPA_KERNEL .eq. REAL_ELPA_KERNEL_AVX_BLOCK2 .or. &
772
               THIS_REAL_ELPA_KERNEL .eq. REAL_ELPA_KERNEL_SSE_BLOCK2 .or. &
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
               THIS_REAL_ELPA_KERNEL .eq. REAL_ELPA_KERNEL_GENERIC    .or. &
               THIS_REAL_ELPA_KERNEL .eq. REAL_ELPA_KERNEL_GENERIC_SIMPLE .or. &
               THIS_REAL_ELPA_KERNEL .eq. REAL_ELPA_KERNEL_SSE .or.        &
               THIS_REAL_ELPA_KERNEL .eq. REAL_ELPA_KERNEL_BGP .or.        &
               THIS_REAL_ELPA_KERNEL .eq. REAL_ELPA_KERNEL_BGQ) then
#endif /* WITH_NO_SPECIFIC_REAL_KERNEL */

             !FORTRAN CODE / X86 INRINISIC CODE / BG ASSEMBLER USING 2 HOUSEHOLDER VECTORS
#if defined(WITH_REAL_GENERIC_KERNEL)
#if defined(WITH_NO_SPECIFIC_REAL_KERNEL)
             if (THIS_REAL_ELPA_KERNEL .eq. REAL_ELPA_KERNEL_GENERIC) then
#endif /* WITH_NO_SPECIFIC_REAL_KERNEL */

               do j = ncols, 2, -2
                 w(:,1) = bcast_buffer(1:nbw,j+off)
                 w(:,2) = bcast_buffer(1:nbw,j+off-1)

#ifdef WITH_OPENMP
#ifdef DESPERATELY_WANT_ASSUMED_SIZE
                 call double_hh_trafo_generic_single(a(1,j+off+a_off-1,istripe,my_thread), w, &
                                            nbw, nl, stripe_width, nbw)

#else
                 call double_hh_trafo_generic_single(a(1:stripe_width,j+off+a_off-1:j+off+a_off+nbw-1, &
                                              istripe,my_thread), w(1:nbw,1:6), &
                                              nbw, nl, stripe_width, nbw)
#endif

#else /* WITH_OPENMP */

#ifdef DESPERATELY_WANT_ASSUMED_SIZE
                 call double_hh_trafo_generic_single(a(1,j+off+a_off-1,istripe),w, &
                                            nbw, nl, stripe_width, nbw)

#else
                 call double_hh_trafo_generic_single(a(1:stripe_width,j+off+a_off-1:j+off+a_off+nbw-1,istripe),w(1:nbw,1:6), &
                                            nbw, nl, stripe_width, nbw)
#endif
#endif /* WITH_OPENMP */

               enddo

#if defined(WITH_NO_SPECIFIC_REAL_KERNEL)
             endif
#endif /* WITH_NO_SPECIFIC_REAL_KERNEL */
#endif /* WITH_REAL_GENERIC_KERNEL */


#if defined(WITH_REAL_GENERIC_SIMPLE_KERNEL)
#if defined(WITH_NO_SPECIFIC_REAL_KERNEL)
             if (THIS_REAL_ELPA_KERNEL .eq. REAL_ELPA_KERNEL_GENERIC_SIMPLE) then
#endif /* WITH_NO_SPECIFIC_REAL_KERNEL */
               do j = ncols, 2, -2
                 w(:,1) = bcast_buffer(1:nbw,j+off)
                 w(:,2) = bcast_buffer(1:nbw,j+off-1)
#ifdef WITH_OPENMP
#ifdef DESPERATELY_WANT_ASSUMED_SIZE
                 call double_hh_trafo_generic_simple_single(a(1,j+off+a_off-1,istripe,my_thread), &
                                                       w, nbw, nl, stripe_width, nbw)
#else
                 call double_hh_trafo_generic_simple_single(a(1:stripe_width,j+off+a_off-1:j+off+a_off-1+nbw,istripe,my_thread), &
                                                     w, nbw, nl, stripe_width, nbw)

#endif

#else /* WITH_OPENMP */
#ifdef DESPERATELY_WANT_ASSUMED_SIZE
                 call double_hh_trafo_generic_simple_single(a(1,j+off+a_off-1,istripe), &
                                                       w, nbw, nl, stripe_width, nbw)
#else
                 call double_hh_trafo_generic_simple_single(a(1:stripe_width,j+off+a_off-1:j+off+a_off-1+nbw,istripe), &
                                                     w, nbw, nl, stripe_width, nbw)

#endif

#endif /* WITH_OPENMP */

               enddo
#if defined(WITH_NO_SPECIFIC_REAL_KERNEL)
             endif
#endif /* WITH_NO_SPECIFIC_REAL_KERNEL */
#endif /* WITH_REAL_GENERIC_SIMPLE_KERNEL */


857
#if defined(WITH_REAL_SSE_ASSEMBLY_KERNEL)
858
859
860
861
862
863
864
#if defined(WITH_NO_SPECIFIC_REAL_KERNEL)
             if (THIS_REAL_ELPA_KERNEL .eq. REAL_ELPA_KERNEL_SSE) then
#endif /* WITH_NO_SPECIFIC_REAL_KERNEL */
               do j = ncols, 2, -2
                 w(:,1) = bcast_buffer(1:nbw,j+off)
                 w(:,2) = bcast_buffer(1:nbw,j+off-1)
#ifdef WITH_OPENMP
865
                 call double_hh_trafo_single(c_loc(a(1,j+off+a_off-1,istripe,my_thread)), w, nbw, nl, &
866
                                      stripe_width, nbw)
867
#else
868
                 call double_hh_trafo_single(c_loc(a(1,j+off+a_off-1,istripe)), w, nbw, nl, &
869
                                      stripe_width, nbw)
870
871
872
873
874
#endif
               enddo
#if defined(WITH_NO_SPECIFIC_REAL_KERNEL)
             endif
#endif /* WITH_NO_SPECIFIC_REAL_KERNEL */
875
#endif /* WITH_REAL_SSE_ASSEMBLY_KERNEL */
876

877
878
879
880
#if defined(WITH_REAL_SSE_BLOCK2_KERNEL)
#if defined(WITH_NO_SPECIFIC_REAL_KERNEL)
             if (THIS_REAL_ELPA_KERNEL .eq. REAL_ELPA_KERNEL_SSE_BLOCK2) then
#endif /* WITH_NO_SPECIFIC_REAL_KERNEL */
881
882

#if defined(WITH_NO_SPECIFIC_REAL_KERNEL) || (defined(WITH_ONE_SPECIFIC_REAL_KERNEL) && !defined(WITH_REAL_SSE_BLOCK6_KERNEL) && !defined(WITH_REAL_SSE_BLOCK4_KERNEL)) 
883
884
885
886
               do j = ncols, 2, -2
                 w(:,1) = bcast_buffer(1:nbw,j+off)
                 w(:,2) = bcast_buffer(1:nbw,j+off-1)
#ifdef WITH_OPENMP
887
                 call double_hh_trafo_real_sse_2hv_single(c_loc(a(1,j+off+a_off-1,istripe,my_thread)), &
888
889
                                                       w, nbw, nl, stripe_width, nbw)
#else
890
                 call double_hh_trafo_real_sse_2hv_single(c_loc(a(1,j+off+a_off-1,istripe)), &
891
892
893
                                                       w, nbw, nl, stripe_width, nbw)
#endif
               enddo
894
895
#endif /* defined(WITH_NO_SPECIFIC_REAL_KERNEL) || (defined(WITH_ONE_SPECIFIC_REAL_KERNEL) && !defined(WITH_REAL_SSE_BLOCK6_KERNEL) && !defined(WITH_REAL_SSE_BLOCK4_KERNEL)) */

896
897
898
899
900
#if defined(WITH_NO_SPECIFIC_REAL_KERNEL)
             endif
#endif /* WITH_NO_SPECIFIC_REAL_KERNEL */
#endif /* WITH_REAL_SSE_BLOCK2_KERNEL */

Andreas Marek's avatar
Typo  
Andreas Marek committed
901
#if defined(WITH_REAL_AVX_BLOCK2_KERNEL) || defined(WITH_REAL_AVX2_BLOCK2_KERNEL)
902
#if defined(WITH_NO_SPECIFIC_REAL_KERNEL)
Andreas Marek's avatar
Andreas Marek committed
903
904
             if ((THIS_REAL_ELPA_KERNEL .eq. REAL_ELPA_KERNEL_AVX_BLOCK2) .or.  &
                 (THIS_REAL_ELPA_KERNEL .eq. REAL_ELPA_KERNEL_AVX2_BLOCK2))then
905
#endif /* WITH_NO_SPECIFIC_REAL_KERNEL */
906
907

#if defined(WITH_NO_SPECIFIC_REAL_KERNEL) || (defined(WITH_ONE_SPECIFIC_REAL_KERNEL) && !defined(WITH_REAL_AVX_BLOCK6_KERNEL) && !defined(WITH_REAL_AVX2_BLOCK6_KERNEL) && !defined(WITH_REAL_AVX_BLOCK4_KERNEL) && !defined(WITH_REAL_AVX2_BLOCK4_KERNEL) )
908
909
910
911
               do j = ncols, 2, -2
                 w(:,1) = bcast_buffer(1:nbw,j+off)
                 w(:,2) = bcast_buffer(1:nbw,j+off-1)
#ifdef WITH_OPENMP
912
                 call double_hh_trafo_real_avx_avx2_2hv_single(c_loc(a(1,j+off+a_off-1,istripe,my_thread)), &
913
914
                                                       w, nbw, nl, stripe_width, nbw)
#else
915
                 call double_hh_trafo_real_avx_avx2_2hv_single(c_loc(a(1,j+off+a_off-1,istripe)), &
916
917
                                                       w, nbw, nl, stripe_width, nbw)
#endif
918
               enddo
919
920
921

#endif /* defined(WITH_NO_SPECIFIC_REAL_KERNEL) || (defined(WITH_ONE_SPECIFIC_REAL_KERNEL) && !defined(WITH_REAL_AVX_BLOCK6_KERNEL) && !defined(WITH_REAL_AVX2_BLOCK6_KERNEL) && !defined(WITH_REAL_AVX_BLOCK4_KERNEL) && !defined(WITH_REAL_AVX2_BLOCK4_KERNEL) ) */

922
#if defined(WITH_NO_SPECIFIC_REAL_KERNEL)
923
             endif
924
#endif /* WITH_NO_SPECIFIC_REAL_KERNEL */
Andreas Marek's avatar
Andreas Marek committed
925
#endif /* WITH_REAL_AVX_BLOCK2_KERNEL || WITH_REAL_AVX2_BLOCK2_KERNEL */
926
927
928

#if defined(WITH_REAL_BGP_KERNEL)
#if defined(WITH_NO_SPECIFIC_REAL_KERNEL)
929
             if (THIS_REAL_ELPA_KERNEL .eq. REAL_ELPA_KERNEL_BGP) then
930
#endif /* WITH_NO_SPECIFIC_REAL_KERNEL */
931
932
933
               do j = ncols, 2, -2
                 w(:,1) = bcast_buffer(1:nbw,j+off)
                 w(:,2) = bcast_buffer(1:nbw,j+off-1)
934
#ifdef WITH_OPENMP
935
                 call double_hh_trafo_bgp_single(a(1,j+off+a_off-1,istripe,my_thread), w, nbw, nl, &
936
937
                                          stripe_width, nbw)
#else
938
                 call double_hh_trafo_bgp_single(a(1,j+off+a_off-1,istripe), w, nbw, nl, &
939
940
                                          stripe_width, nbw)
#endif
941
               enddo
942
#if defined(WITH_NO_SPECIFIC_REAL_KERNEL)
943
             endif
944
945
946
947
948
949
#endif /* WITH_NO_SPECIFIC_REAL_KERNEL */
#endif /* WITH_REAL_BGP_KERNEL */


#if defined(WITH_REAL_BGQ_KERNEL)
#if defined(WITH_NO_SPECIFIC_REAL_KERNEL)
950
             if (THIS_REAL_ELPA_KERNEL .eq. REAL_ELPA_KERNEL_BGQ) then
951
#endif /* WITH_NO_SPECIFIC_REAL_KERNEL */
952
953
954
               do j = ncols, 2, -2
                 w(:,1) = bcast_buffer(1:nbw,j+off)
                 w(:,2) = bcast_buffer(1:nbw,j+off-1)
955
#ifdef WITH_OPENMP
956
                 call double_hh_trafo_bgq_single(a(1,j+off+a_off-1,istripe,my_thread), w, nbw, nl, &
957
958
                                          stripe_width, nbw)
#else
959
                 call double_hh_trafo_bgq_single(a(1,j+off+a_off-1,istripe), w, nbw, nl, &
960
961
                                          stripe_width, nbw)
#endif
962
               enddo
963
#if defined(WITH_NO_SPECIFIC_REAL_KERNEL)
964
             endif
965
966
967
968
#endif /* WITH_NO_SPECIFIC_REAL_KERNEL */
#endif /* WITH_REAL_BGQ_KERNEL */

#ifdef WITH_OPENMP
969
970
             if (j==1) call single_hh_trafo_real_cpu_openmp_single(a(1:stripe_width, &
                                   1+off+a_off:1+off+a_off+nbw-1,istripe,my_thread), &
971
972
973
                                      bcast_buffer(1:nbw,off+1), nbw, nl,     &
                                      stripe_width)
#else
974
975
             if (j==1) call single_hh_trafo_real_cpu_single(a(1:stripe_width, &
                                    1+off+a_off:1+off+a_off+nbw-1,istripe),           &
976
977
978
979
980
981
                                      bcast_buffer(1:nbw,off+1), nbw, nl,     &
                                      stripe_width)
#endif


#if defined(WITH_NO_SPECIFIC_REAL_KERNEL)
982
           endif !
983
984
#endif /* WITH_NO_SPECIFIC_REAL_KERNEL */

985
#if defined(WITH_REAL_SSE_BLOCK4_KERNEL)
986
#if defined(WITH_NO_SPECIFIC_REAL_KERNEL)
987
988
         if (THIS_REAL_ELPA_KERNEL .eq. REAL_ELPA_KERNEL_SSE_BLOCK4) then
#endif /* WITH_NO_SPECIFIC_REAL_KERNEL */
989
990
991

#if defined(WITH_NO_SPECIFIC_REAL_KERNEL) || (defined(WITH_ONE_SPECIFIC_REAL_KERNEL) && !defined(WITH_REAL_SSE_BLOCK6_KERNEL) )

992
993
994
995
996
997
998
           ! X86 INTRINSIC CODE, USING 4 HOUSEHOLDER VECTORS
           do j = ncols, 4, -4
             w(:,1) = bcast_buffer(1:nbw,j+off)
             w(:,2) = bcast_buffer(1:nbw,j+off-1)
             w(:,3) = bcast_buffer(1:nbw,j+off-2)
             w(:,4) = bcast_buffer(1:nbw,j+off-3)
#ifdef WITH_OPENMP
999
             call quad_hh_trafo_real_sse_4hv_single(c_loc(a(1,j+off+a_off-3,istripe,my_thread)), w, &
1000
1001
                                                  nbw, nl, stripe_width, nbw)
#else
1002
             call quad_hh_trafo_real_sse_4hv_single(c_loc(a(1,j+off+a_off-3,istripe)), w, &
1003
1004
1005
1006
1007
1008
1009
                                                  nbw, nl, stripe_width, nbw)
#endif
           enddo
           do jj = j, 2, -2
             w(:,1) = bcast_buffer(1:nbw,jj+off)
             w(:,2) = bcast_buffer(1:nbw,jj+off-1)
#ifdef WITH_OPENMP
1010
             call double_hh_trafo_real_sse_2hv_single(c_loc(a(1,jj+off+a_off-1,istripe,my_thread)), &
1011
1012
                                                    w, nbw, nl, stripe_width, nbw)
#else
1013
             call double_hh_trafo_real_sse_2hv_single(c_loc(a(1,jj+off+a_off-1,istripe)), &
1014
1015
1016
1017
                                                    w, nbw, nl, stripe_width, nbw)
#endif
           enddo
#ifdef WITH_OPENMP
1018
1019
           if (jj==1) call single_hh_trafo_real_cpu_openmp_single(a(1:stripe_width,1+off+a_off:1+off+a_off+nbw-1, &
                                                                    istripe,my_thread), &
1020
1021
                                          bcast_buffer(1:nbw,off+1), nbw, nl, stripe_width)
#else
1022
           if (jj==1) call single_hh_trafo_real_cpu_single(a(1:stripe_width,1+off+a_off:1+off+a_off+nbw-1,istripe), &
1023
1024
                                          bcast_buffer(1:nbw,off+1), nbw, nl, stripe_width)
#endif
1025
1026
1027

#endif /* defined(WITH_NO_SPECIFIC_REAL_KERNEL) || (defined(WITH_ONE_SPECIFIC_REAL_KERNEL) && !defined(WITH_REAL_SSE_BLOCK6_KERNEL) ) */

1028
1029
1030
1031
1032
#if defined(WITH_NO_SPECIFIC_REAL_KERNEL)
         endif
#endif /* WITH_NO_SPECIFIC_REAL_KERNEL */
#endif /* WITH_REAL_SSE_BLOCK4_KERNEL */

1033
#if defined(WITH_REAL_AVX_BLOCK4_KERNEL) || defined(WITH_REAL_AVX2_BLOCK4_KERNEL)
1034
#if defined(WITH_NO_SPECIFIC_REAL_KERNEL)
1035
1036
         if ((THIS_REAL_ELPA_KERNEL .eq. REAL_ELPA_KERNEL_AVX_BLOCK4) .or. &
             (THIS_REAL_ELPA_KERNEL .eq. REAL_ELPA_KERNEL_AVX2_BLOCK4)) then
1037
#endif /* WITH_NO_SPECIFIC_REAL_KERNEL */
1038
1039
1040

#if defined(WITH_NO_SPECIFIC_REAL_KERNEL) || (defined(WITH_ONE_SPECIFIC_REAL_KERNEL) && !defined(WITH_REAL_AVX_BLOCK6_KERNEL) && !defined(WITH_REAL_AVX2_BLOCK6_KERNEL))

1041
1042
1043
1044
1045
1046
             ! X86 INTRINSIC CODE, USING 4 HOUSEHOLDER VECTORS
             do j = ncols, 4, -4
               w(:,1) = bcast_buffer(1:nbw,j+off)
               w(:,2) = bcast_buffer(1<