mod_compute_hh_trafo_real.F90 50.8 KB
Newer Older
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
!    This file is part of ELPA.
!
!    The ELPA library was originally created by the ELPA consortium,
!    consisting of the following organizations:
!
!    - Rechenzentrum Garching der Max-Planck-Gesellschaft (RZG),
!    - 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:
!    http://elpa.rzg.mpg.de/
!
!    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



45
46
module compute_hh_trafo_real
#include "config-f90.h"
47
  use elpa_mpi
48
49
50
  implicit none

#ifdef WITH_OPENMP
51
52
53
54
55
56
57
58
  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
59
#else
60
61
62
63
  public compute_hh_trafo_real_cpu_single
#endif


64
65
66
67
68
#endif

  contains

#ifdef WITH_OPENMP
69
       subroutine compute_hh_trafo_real_cpu_openmp_double(a, a_dev, stripe_width, a_dim2, stripe_count, max_threads, l_nev, &
70
                                                   a_off, nbw, max_blk_size, bcast_buffer, bcast_buffer_dev, hh_dot_dev,    &
71
                                                   hh_tau_dev, kernel_flops, kernel_time, off, ncols, istripe,              &
72
                                                   my_thread, thread_width, THIS_REAL_ELPA_KERNEL)
73
#else
74
       subroutine compute_hh_trafo_real_cpu_double       (a, a_dev, stripe_width, a_dim2, stripe_count,                       &
75
76
77
                                                   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)
78
79
80
81
#endif


         use precision
82
         use iso_c_binding
83
84
         use elpa2_utilities
         use single_hh_trafo_real
85
86
87
         use cuda_c_kernel
         use cuda_functions

88
#if defined(WITH_REAL_GENERIC_SIMPLE_KERNEL)
89
         use real_generic_simple_kernel !, only : double_hh_trafo_generic_simple
90
91
#endif

92
#if defined(WITH_REAL_GENERIC_KERNEL) && !(defined(DESPERATELY_WANT_ASSUMED_SIZE))
93
        use real_generic_kernel !, only : double_hh_trafo_generic
94
#endif
95
96

#if defined(WITH_REAL_BGP_KERNEL)
97
         use real_bgp_kernel !, only : double_hh_trafo_bgp
98
99
100
#endif

#if defined(WITH_REAL_BGQ_KERNEL)
101
         use real_bgq_kernel !, only : double_hh_trafo_bgq
102
103
104
105
#endif
#ifdef HAVE_DETAILED_TIMINGS
         use timings
#endif
106

107
#if defined(HAVE_AVX) || defined(HAVE_SSE_INTRINSICS) || defined(HAVE_SSE_ASSEMBLY)
108
109
         use kernel_interfaces
#endif
110
         implicit none
111
         real(kind=c_double), intent(inout) :: kernel_time  ! MPI_WTIME always needs double
112
113
         integer(kind=lik)            :: kernel_flops
         integer(kind=ik), intent(in) :: nbw, max_blk_size
114
         real(kind=rk8)                :: bcast_buffer(nbw,max_blk_size)
115
116
117
118
119
120
         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
121
!         real(kind=rk8)                :: a(stripe_width,a_dim2,stripe_count)
122
         real(kind=rk8), pointer      :: a(:,:,:)
123
#else
124
         integer(kind=ik), intent(in) :: max_threads, l_nev, thread_width
125
!         real(kind=rk8)                :: a(stripe_width,a_dim2,stripe_count,max_threads)
126
         real(kind=rk8), pointer      :: a(:,:,:,:)
127
128
129
#endif
         integer(kind=ik), intent(in) :: THIS_REAL_ELPA_KERNEL

130
131
132
133
134
         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
135
136
137
138
139
140
         ! 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
141
         real(kind=rk8)                :: w(nbw,6)
142
         real(kind=c_double)          :: ttt ! MPI_WTIME always needs double
143

144
145
146
147
148
         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

149
150
#ifdef HAVE_DETAILED_TIMINGS
#ifdef WITH_OPENMP
151
         call timer%start("compute_hh_trafo_real_cpu_openmp_double")
152
#else
153
         call timer%start("compute_hh_trafo_real_cpu_double")
154
155
156
157
158
159
160
#endif
#endif
         ttt = mpi_wtime()

#ifndef WITH_OPENMP
         nl = merge(stripe_width, last_stripe_width, istripe<stripe_count)
#else
161
162
163
164
         if (THIS_REAL_ELPA_KERNEL .eq. REAL_ELPA_KERNEL_GPU) then
           print *,"compute_hh_trafo_real GPU OPENMP: not yet implemented"
           stop
         endif
165
166
167
168
169
170
171
172
173

         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
174
             call timer%stop("compute_hh_trafo_real_cpu_openmp_double")
175
#else
176
             call timer%stop("compute_hh_trafo_real_cpu_double")
177
178
179
180
181
#endif
#endif
             return
           endif
         endif
182
183
184
#endif /* not WITH_OPENMP */

         if (THIS_REAL_ELPA_KERNEL .eq. REAL_ELPA_KERNEL_GPU) then
185
186
           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, &
187
188
                                                      hh_tau_dev, nl, nbw, stripe_width, off, ncols)
         else ! not CUDA kernel
189
190
191

#if defined(WITH_NO_SPECIFIC_REAL_KERNEL)
         if (THIS_REAL_ELPA_KERNEL .eq. REAL_ELPA_KERNEL_AVX_BLOCK2 .or. &
192
             THIS_REAL_ELPA_KERNEL .eq. REAL_ELPA_KERNEL_AVX2_BLOCK2 .or. &
193
             THIS_REAL_ELPA_KERNEL .eq. REAL_ELPA_KERNEL_SSE_BLOCK2 .or. &
194
195
196
197
198
199
200
             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 */

201
             !FORTRAN CODE / X86 INRINISIC CODE / BG ASSEMBLER USING 2 HOUSEHOLDER VECTORS
202
203
#if defined(WITH_REAL_GENERIC_KERNEL)
#if defined(WITH_NO_SPECIFIC_REAL_KERNEL)
204
             if (THIS_REAL_ELPA_KERNEL .eq. REAL_ELPA_KERNEL_GENERIC) then
205
206
#endif /* WITH_NO_SPECIFIC_REAL_KERNEL */

207
208
209
               do j = ncols, 2, -2
                 w(:,1) = bcast_buffer(1:nbw,j+off)
                 w(:,2) = bcast_buffer(1:nbw,j+off-1)
210
211

#ifdef WITH_OPENMP
212
#ifdef DESPERATELY_WANT_ASSUMED_SIZE
213
                 call double_hh_trafo_generic_double(a(1,j+off+a_off-1,istripe,my_thread), w, &
214
215
                                            nbw, nl, stripe_width, nbw)

216
#else
217
                 call double_hh_trafo_generic_double(a(1:stripe_width,j+off+a_off-1:j+off+a_off+nbw-1, &
218
                                              istripe,my_thread), w(1:nbw,1:6), &
219
                                              nbw, nl, stripe_width, nbw)
220
221
222
223
224
#endif

#else /* WITH_OPENMP */

#ifdef DESPERATELY_WANT_ASSUMED_SIZE
225
                 call double_hh_trafo_generic_double(a(1,j+off+a_off-1,istripe),w, &
226
227
228
                                            nbw, nl, stripe_width, nbw)

#else
229
                 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), &
230
                                            nbw, nl, stripe_width, nbw)
231
#endif
232
233
#endif /* WITH_OPENMP */

234
               enddo
235
236

#if defined(WITH_NO_SPECIFIC_REAL_KERNEL)
237
             endif
238
239
240
241
242
243
#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)
244
             if (THIS_REAL_ELPA_KERNEL .eq. REAL_ELPA_KERNEL_GENERIC_SIMPLE) then
245
#endif /* WITH_NO_SPECIFIC_REAL_KERNEL */
246
247
248
               do j = ncols, 2, -2
                 w(:,1) = bcast_buffer(1:nbw,j+off)
                 w(:,2) = bcast_buffer(1:nbw,j+off-1)
249
#ifdef WITH_OPENMP
250
#ifdef DESPERATELY_WANT_ASSUMED_SIZE
251
                 call double_hh_trafo_generic_simple_double(a(1,j+off+a_off-1,istripe,my_thread), &
252
                                                       w, nbw, nl, stripe_width, nbw)
253
#else
254
                 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), &
255
256
257
258
259
260
                                                     w, nbw, nl, stripe_width, nbw)

#endif

#else /* WITH_OPENMP */
#ifdef DESPERATELY_WANT_ASSUMED_SIZE
261
                 call double_hh_trafo_generic_simple_double(a(1,j+off+a_off-1,istripe), &
262
                                                       w, nbw, nl, stripe_width, nbw)
263
#else
264
                 call double_hh_trafo_generic_simple_double(a(1:stripe_width,j+off+a_off-1:j+off+a_off-1+nbw,istripe), &
265
266
                                                     w, nbw, nl, stripe_width, nbw)

267
#endif
268
269
270

#endif /* WITH_OPENMP */

271
               enddo
272
#if defined(WITH_NO_SPECIFIC_REAL_KERNEL)
273
             endif
274
275
276
277
#endif /* WITH_NO_SPECIFIC_REAL_KERNEL */
#endif /* WITH_REAL_GENERIC_SIMPLE_KERNEL */


278
#if defined(WITH_REAL_SSE_ASSEMBLY_KERNEL)
279
#if defined(WITH_NO_SPECIFIC_REAL_KERNEL)
280
             if (THIS_REAL_ELPA_KERNEL .eq. REAL_ELPA_KERNEL_SSE) then
281
#endif /* WITH_NO_SPECIFIC_REAL_KERNEL */
282
283
284
               do j = ncols, 2, -2
                 w(:,1) = bcast_buffer(1:nbw,j+off)
                 w(:,2) = bcast_buffer(1:nbw,j+off-1)
285
#ifdef WITH_OPENMP
286
                 call double_hh_trafo_double(a(1,j+off+a_off-1,istripe,my_thread), w, nbw, nl, &
287
288
                                      stripe_width, nbw)
#else
289
                 call double_hh_trafo_double(a(1,j+off+a_off-1,istripe), w, nbw, nl, &
290
291
                                      stripe_width, nbw)
#endif
292
               enddo
293
#if defined(WITH_NO_SPECIFIC_REAL_KERNEL)
294
             endif
295
#endif /* WITH_NO_SPECIFIC_REAL_KERNEL */
296
#endif /* WITH_REAL_SSE_ASSEMBLY_KERNEL */
297

298
299
300
301
302
303
304
305
#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 */
             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
306
               call double_hh_trafo_real_sse_2hv_double(c_loc(a(1,j+off+a_off-1,istripe,my_thread)), &
307
308
                                                       w, nbw, nl, stripe_width, nbw)
#else
309
               call double_hh_trafo_real_sse_2hv_double(c_loc(a(1,j+off+a_off-1,istripe)), &
310
311
312
313
314
315
316
                                                       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_SSE_BLOCK2_KERNEL */
317

318
#if defined(WITH_REAL_AVX_BLOCK2_KERNEL) || defined(WITH_REAL_AVX2_BLOCK2_KERNEL)
319
#if defined(WITH_NO_SPECIFIC_REAL_KERNEL)
320

321
322
           if ((THIS_REAL_ELPA_KERNEL .eq. REAL_ELPA_KERNEL_AVX_BLOCK2) .or. &
               (THIS_REAL_ELPA_KERNEL .eq. REAL_ELPA_KERNEL_AVX2_BLOCK2))  then
323
#endif /* WITH_NO_SPECIFIC_REAL_KERNEL */
324
325
326
               do j = ncols, 2, -2
                 w(:,1) = bcast_buffer(1:nbw,j+off)
                 w(:,2) = bcast_buffer(1:nbw,j+off-1)
327
#ifdef WITH_OPENMP
328

329
               call double_hh_trafo_real_avx_avx2_2hv_double(c_loc(a(1,j+off+a_off-1,istripe,my_thread)), &
330
331
                                                       w, nbw, nl, stripe_width, nbw)
#else
332
               call double_hh_trafo_real_avx_avx2_2hv_double(c_loc(a(1,j+off+a_off-1,istripe)), &
333
334
335
336
337
338
339
340
341
342
343
344
345
346
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
                                                       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_AVX_BLOCK2_KERNEL */

#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)
383
!              call double_hh_trafo_real_avx_avx2_2hv(a(1,j+off+a_off-1,istripe), w, nbw, nl, stripe_width, nbw)
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
!#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 */

402
403
404
405
406
407
408
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 */
             ! 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
413
               call quad_hh_trafo_real_sse_4hv_double(c_loc(a(1,j+off+a_off-3,istripe,my_thread)), w, &
414
415
                                                  nbw, nl, stripe_width, nbw)
#else
416
               call quad_hh_trafo_real_sse_4hv_double(c_loc(a(1,j+off+a_off-3,istripe)), w, &
417
418
419
420
421
422
423
                                                  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
424
               call double_hh_trafo_real_sse_2hv_double(c_loc(a(1,jj+off+a_off-1,istripe,my_thread)), &
425
426
                                                    w, nbw, nl, stripe_width, nbw)
#else
427
               call double_hh_trafo_real_sse_2hv_double(c_loc(a(1,jj+off+a_off-1,istripe)), &
428
429
430
431
                                                    w, nbw, nl, stripe_width, nbw)
#endif
             enddo
#ifdef WITH_OPENMP
432
433
             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), &
434
435
436
437
438
439
440
441
442
443
444
                                          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
#if defined(WITH_NO_SPECIFIC_REAL_KERNEL)
           endif
#endif /* WITH_NO_SPECIFIC_REAL_KERNEL */
#endif /* WITH_REAL_SSE_BLOCK4_KERNEL */


445
446
447
448
449
450
451
452
453
454
455
#if defined(WITH_REAL_AVX_BLOCK4_KERNEL)
#if defined(WITH_NO_SPECIFIC_REAL_KERNEL)
           if (THIS_REAL_ELPA_KERNEL .eq. REAL_ELPA_KERNEL_AVX_BLOCK4) then
#endif /* WITH_NO_SPECIFIC_REAL_KERNEL */
             ! 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
456
               call quad_hh_trafo_real_avx_avx2_4hv_double(c_loc(a(1,j+off+a_off-3,istripe,my_thread)), w, &
457
458
                                                  nbw, nl, stripe_width, nbw)
#else
459
               call quad_hh_trafo_real_avx_avx2_4hv_double(c_loc(a(1,j+off+a_off-3,istripe)), w, &
460
461
462
463
464
465
466
                                                  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
467
               call double_hh_trafo_real_avx_avx2_2hv_double(c_loc(a(1,jj+off+a_off-1,istripe,my_thread)), &
468
469
                                                    w, nbw, nl, stripe_width, nbw)
#else
470
               call double_hh_trafo_real_avx_avx2_2hv_double(c_loc(a(1,jj+off+a_off-1,istripe)), &
471
472
473
474
                                                    w, nbw, nl, stripe_width, nbw)
#endif
             enddo
#ifdef WITH_OPENMP
475
476
             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), &
477
478
479
480
481
482
483
484
485
486
                                          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
#if defined(WITH_NO_SPECIFIC_REAL_KERNEL)
           endif
#endif /* WITH_NO_SPECIFIC_REAL_KERNEL */
#endif /* WITH_REAL_AVX_BLOCK4_KERNEL */

487
488
489
490
491
492
493
494
495
496
497
498
499
#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
500
               call hexa_hh_trafo_real_sse_6hv_double(c_loc(a(1,j+off+a_off-5,istripe,my_thread)), w, &
501
502
                                                  nbw, nl, stripe_width, nbw)
#else
503
               call hexa_hh_trafo_real_sse_6hv_double(c_loc(a(1,j+off+a_off-5,istripe)), w, &
504
505
506
507
508
509
510
511
512
                                                  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
513
               call quad_hh_trafo_real_sse_4hv_double(c_loc(a(1,jj+off+a_off-3,istripe,my_thread)), w, &
514
515
                                                  nbw, nl, stripe_width, nbw)
#else
516
               call quad_hh_trafo_real_sse_4hv_double(c_loc(a(1,jj+off+a_off-3,istripe)), w, &
517
518
519
520
521
522
523
                                                  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
524
               call double_hh_trafo_real_sse_2hv_double(c_loc(a(1,jjj+off+a_off-1,istripe,my_thread)), &
525
526
                                                    w, nbw, nl, stripe_width, nbw)
#else
527
               call double_hh_trafo_real_sse_2hv_double(c_loc(a(1,jjj+off+a_off-1,istripe)), &
528
529
530
531
                                                    w, nbw, nl, stripe_width, nbw)
#endif
             enddo
#ifdef WITH_OPENMP
532
533
             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), &
534
535
536
537
538
539
540
541
542
543
                                           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 */

544
545
546
547
548
549
550
551
552
553
554
555
556
557

#if defined(WITH_REAL_AVX_BLOCK6_KERNEL)
#if defined(WITH_NO_SPECIFIC_REAL_KERNEL)
           if (THIS_REAL_ELPA_KERNEL .eq. REAL_ELPA_KERNEL_AVX_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
558
               call hexa_hh_trafo_real_avx_avx2_6hv_double(c_loc(a(1,j+off+a_off-5,istripe,my_thread)), w, &
559
560
                                                  nbw, nl, stripe_width, nbw)
#else
561
               call hexa_hh_trafo_real_avx_avx2_6hv_double(c_loc(a(1,j+off+a_off-5,istripe)), w, &
562
563
564
565
566
567
568
569
570
                                                  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
571
               call quad_hh_trafo_real_avx_avx2_4hv_double(c_loc(a(1,jj+off+a_off-3,istripe,my_thread)), w, &
572
573
                                                  nbw, nl, stripe_width, nbw)
#else
574
               call quad_hh_trafo_real_avx_avx2_4hv_double(c_loc(a(1,jj+off+a_off-3,istripe)), w, &
575
576
577
578
579
580
581
                                                  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
582
               call double_hh_trafo_real_avx_avx2_2hv_double(c_loc(a(1,jjj+off+a_off-1,istripe,my_thread)), &
583
584
                                                    w, nbw, nl, stripe_width, nbw)
#else
585
               call double_hh_trafo_real_avx_avx2_2hv_double(c_loc(a(1,jjj+off+a_off-1,istripe)), &
586
587
588
589
                                                    w, nbw, nl, stripe_width, nbw)
#endif
             enddo
#ifdef WITH_OPENMP
590
591
             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), &
592
593
594
595
596
597
598
599
                                           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 */
600
#endif /* WITH_REAL_AVX_BLOCK6_KERNEL */
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
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

         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
667

668
#if defined(HAVE_AVX) || defined(HAVE_SSE_INTRINSICS) || defined(HAVE_SSE_ASSEMBLY)
669
670
         use kernel_interfaces
#endif
671
672
673
674
675
676
677
678
679
680
681
682
         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)
683
         real(kind=rk4), pointer      :: a(:,:,:)
684
685
686
#else
         integer(kind=ik), intent(in) :: max_threads, l_nev, thread_width
!         real(kind=rk8)                :: a(stripe_width,a_dim2,stripe_count,max_threads)
687
         real(kind=rk4), pointer      :: a(:,:,:,:)
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
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
#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. &
753
               THIS_REAL_ELPA_KERNEL .eq. REAL_ELPA_KERNEL_SSE_BLOCK2 .or. &
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
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
               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 */


838
#if defined(WITH_REAL_SSE_ASSEMBLY_KERNEL)
839
840
841
842
843
844
845
#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
846
847
                 call double_hh_trafo_single(a(1,j+off+a_off-1,istripe,my_thread), w, nbw, nl, &
                                      stripe_width, nbw)
848
#else
849
850
                 call double_hh_trafo_single(a(1,j+off+a_off-1,istripe), w, nbw, nl, &
                                      stripe_width, nbw)
851
852
853
854
855
#endif
               enddo
#if defined(WITH_NO_SPECIFIC_REAL_KERNEL)
             endif
#endif /* WITH_NO_SPECIFIC_REAL_KERNEL */
856
#endif /* WITH_REAL_SSE_ASSEMBLY_KERNEL */
857

858
859
860
861
862
863
864
865
#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 */
               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
866
                 call double_hh_trafo_real_sse_2hv_single(c_loc(a(1,j+off+a_off-1,istripe,my_thread)), &
867
868
                                                       w, nbw, nl, stripe_width, nbw)
#else
869
                 call double_hh_trafo_real_sse_2hv_single(c_loc(a(1,j+off+a_off-1,istripe)), &
870
871
872
873
874
875
876
877
                                                       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_SSE_BLOCK2_KERNEL */

878
879
880
881
882
883
884
885
#if defined(WITH_REAL_AVX_BLOCK2_KERNEL)
#if defined(WITH_NO_SPECIFIC_REAL_KERNEL)
             if (THIS_REAL_ELPA_KERNEL .eq. REAL_ELPA_KERNEL_AVX_BLOCK2) 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
886
                 call double_hh_trafo_real_avx_avx2_2hv_single(c_loc(a(1,j+off+a_off-1,istripe,my_thread)), &
887
888
                                                       w, nbw, nl, stripe_width, nbw)
#else
889
                 call double_hh_trafo_real_avx_avx2_2hv_single(c_loc(a(1,j+off+a_off-1,istripe)), &
890
891
                                                       w, nbw, nl, stripe_width, nbw)
#endif
892
               enddo
893
#if defined(WITH_NO_SPECIFIC_REAL_KERNEL)
894
             endif
895
896
897
898
899
#endif /* WITH_NO_SPECIFIC_REAL_KERNEL */
#endif /* WITH_REAL_AVX_BLOCK2_KERNEL */

#if defined(WITH_REAL_BGP_KERNEL)
#if defined(WITH_NO_SPECIFIC_REAL_KERNEL)
900
             if (THIS_REAL_ELPA_KERNEL .eq. REAL_ELPA_KERNEL_BGP) then
901
#endif /* WITH_NO_SPECIFIC_REAL_KERNEL */
902
903
904
               do j = ncols, 2, -2
                 w(:,1) = bcast_buffer(1:nbw,j+off)
                 w(:,2) = bcast_buffer(1:nbw,j+off-1)
905
#ifdef WITH_OPENMP
906
                 call double_hh_trafo_bgp_single(a(1,j+off+a_off-1,istripe,my_thread), w, nbw, nl, &
907
908
                                          stripe_width, nbw)
#else
909
                 call double_hh_trafo_bgp_single(a(1,j+off+a_off-1,istripe), w, nbw, nl, &
910
911
                                          stripe_width, nbw)
#endif
912
               enddo
913
#if defined(WITH_NO_SPECIFIC_REAL_KERNEL)
914
             endif
915
916
917
918
919
920
#endif /* WITH_NO_SPECIFIC_REAL_KERNEL */
#endif /* WITH_REAL_BGP_KERNEL */


#if defined(WITH_REAL_BGQ_KERNEL)
#if defined(WITH_NO_SPECIFIC_REAL_KERNEL)
921
             if (THIS_REAL_ELPA_KERNEL .eq. REAL_ELPA_KERNEL_BGQ) then
922
#endif /* WITH_NO_SPECIFIC_REAL_KERNEL */
923
924
925
               do j = ncols, 2, -2
                 w(:,1) = bcast_buffer(1:nbw,j+off)
                 w(:,2) = bcast_buffer(1:nbw,j+off-1)
926
#ifdef WITH_OPENMP
927
                 call double_hh_trafo_bgq_single(a(1,j+off+a_off-1,istripe,my_thread), w, nbw, nl, &
928
929
                                          stripe_width, nbw)
#else
930
                 call double_hh_trafo_bgq_single(a(1,j+off+a_off-1,istripe), w, nbw, nl, &
931
932
                                          stripe_width, nbw)
#endif
933
               enddo
934
#if defined(WITH_NO_SPECIFIC_REAL_KERNEL)
935
             endif
936
937
938
939
#endif /* WITH_NO_SPECIFIC_REAL_KERNEL */
#endif /* WITH_REAL_BGQ_KERNEL */

#ifdef WITH_OPENMP
940
941
             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), &
942
943
944
                                      bcast_buffer(1:nbw,off+1), nbw, nl,     &
                                      stripe_width)
#else
945
946
             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),           &
947
948
949
950
951
952
                                      bcast_buffer(1:nbw,off+1), nbw, nl,     &
                                      stripe_width)
#endif


#if defined(WITH_NO_SPECIFIC_REAL_KERNEL)
953
           endif !
954
955
#endif /* WITH_NO_SPECIFIC_REAL_KERNEL */

956
#if defined(WITH_REAL_SSE_BLOCK4_KERNEL)
957
#if defined(WITH_NO_SPECIFIC_REAL_KERNEL)
958
959
960
961
962
963
964
965
966
         if (THIS_REAL_ELPA_KERNEL .eq. REAL_ELPA_KERNEL_SSE_BLOCK4) then
#endif /* WITH_NO_SPECIFIC_REAL_KERNEL */
           ! 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
967
             call quad_hh_trafo_real_sse_4hv_single(c_loc(a(1,j+off+a_off-3,istripe,my_thread)), w, &
968
969
                                                  nbw, nl, stripe_width, nbw)
#else
970
             call quad_hh_trafo_real_sse_4hv_single(c_loc(a(1,j+off+a_off-3,istripe)), w, &
971
972
973
974
975
976
977
                                                  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
978
             call double_hh_trafo_real_sse_2hv_single(c_loc(a(1,jj+off+a_off-1,istripe,my_thread)), &
979
980
                                                    w, nbw, nl, stripe_width, nbw)
#else
981
             call double_hh_trafo_real_sse_2hv_single(c_loc(a(1,jj+off+a_off-1,istripe)), &
982
983
984
985
                                                    w, nbw, nl, stripe_width, nbw)
#endif
           enddo
#ifdef WITH_OPENMP
986
987
           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), &
988
989
                                          bcast_buffer(1:nbw,off+1), nbw, nl, stripe_width)
#else
990
           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), &
991
992
993
994
995
996
997
                                          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 */

998
#if defined(WITH_REAL_AVX_BLOCK4_KERNEL) || defined(WITH_REAL_AVX2_BLOCK4_KERNEL)
999
#if defined(WITH_NO_SPECIFIC_REAL_KERNEL)
1000
1001
         if ((THIS_REAL_ELPA_KERNEL .eq. REAL_ELPA_KERNEL_AVX_BLOCK4) .or. &
             (THIS_REAL_ELPA_KERNEL .eq. REAL_ELPA_KERNEL_AVX2_BLOCK4)) then
1002
#endif /* WITH_NO_SPECIFIC_REAL_KERNEL */
1003
1004
1005
1006
1007
1008
             ! 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)
1009
#ifdef WITH_OPENMP
1010

1011
             call quad_hh_trafo_real_avx_avx2_4hv_single(c_loc(a(1,j+off+a_off-3,istripe,my_thread)), w, &
1012
1013
                                                  nbw, nl, stripe_width, nbw)
#else
1014
             call quad_hh_trafo_real_avx_avx2_4hv_single(c_loc(a(1,j+off+a_off-3,istripe)), w, &
1015
1016
                                                  nbw, nl, stripe_width, nbw)
#endif
1017
1018
1019
1020
             enddo
             do jj = j, 2, -2
               w(:,1) = bcast_buffer(1:nbw,jj+off)
               w(:,2) = bcast_buffer(1:nbw,jj+off-1)
1021
#ifdef WITH_OPENMP
1022

1023
             call double_hh_trafo_real_avx_avx2_2hv_single(c_loc(a(1,jj+off+a_off-1,istripe,my_thread)), &
1024
1025
                                                    w, nbw, nl, stripe_width, nbw)
#else
1026
             call double_hh_trafo_real_avx_avx2_2hv_single(c_loc(a(1,jj+off+a_off-1,istripe)), &
1027
1028
                                                    w, nbw, nl, stripe_width, nbw)
#endif
1029
             enddo
1030
#ifdef WITH_OPENMP
1031
1032
             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), &
1033
1034
                                          bcast_buffer(1:nbw,off+1), nbw, nl, stripe_width)
#else
1035
             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), &
1036
1037
1038
                                          bcast_buffer(1:nbw,off+1), nbw, nl, stripe_width)
#endif
#if defined(WITH_NO_SPECIFIC_REAL_KERNEL)
1039
           endif
1040
1041
1042
#endif /* WITH_NO_SPECIFIC_REAL_KERNEL */
#endif /* WITH_REAL_AVX_BLOCK4_KERNEL */

1043
1044
1045
1046
1047
1048
1049
1050
1051
1052
1053
1054
1055
#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
1056
             call hexa_hh_trafo_real_sse_6hv_single(c_loc(a(1,j+off+a_off-5,istripe,my_thread)), w, &
1057
1058
                                                  nbw, nl, stripe_width, nbw)
#else
1059
             call hexa_hh_trafo_real_sse_6hv_single(c_loc(a(1,j+off+a_off-5,istripe)), w, &
1060
1061
1062
1063
1064
1065
1066
1067
1068
                                                  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
1069
             call quad_hh_trafo_real_sse_4hv_single(c_loc(a(1,jj+off+a_off-3,istripe,my_thread)), w, &
1070
1071
                                                  nbw, nl, stripe_width, nbw)
#else
1072
             call quad_hh_trafo_real_sse_4hv_single(c_loc(a(1,jj+off+a_off-3,istripe)), w, &
1073
1074
1075
1076
1077
1078
1079
                                                  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
1080
             call double_hh_trafo_real_sse_2hv_single(c_loc(a(1,jjj+off+a_off-1,istripe,my_thread)), &
1081
1082
                                                    w, nbw, nl, stripe_width, nbw)
#else