elpa_t.F90 19.8 KB
Newer Older
1
2
#include <elpa/elpa_constants.h>

Andreas Marek's avatar
Andreas Marek committed
3
module elpa_type
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
  use, intrinsic :: iso_c_binding

  integer, parameter :: ELPA_SOLVER_1STAGE = ELPA_C_SOLVER_1STAGE
  integer, parameter :: ELPA_SOLVER_2STAGE = ELPA_C_SOLVER_2STAGE

  integer, parameter :: ELPA_2STAGE_REAL_GENERIC           = ELPA_C_2STAGE_REAL_GENERIC
  integer, parameter :: ELPA_2STAGE_REAL_GENERIC_SIMPLE    = ELPA_C_2STAGE_REAL_GENERIC_SIMPLE
  integer, parameter :: ELPA_2STAGE_REAL_BGP               = ELPA_C_2STAGE_REAL_BGP
  integer, parameter :: ELPA_2STAGE_REAL_BGQ               = ELPA_C_2STAGE_REAL_BGQ
  integer, parameter :: ELPA_2STAGE_REAL_SSE               = ELPA_C_2STAGE_REAL_SSE
  integer, parameter :: ELPA_2STAGE_REAL_SSE_BLOCK2        = ELPA_C_2STAGE_REAL_SSE_BLOCK2
  integer, parameter :: ELPA_2STAGE_REAL_SSE_BLOCK4        = ELPA_C_2STAGE_REAL_SSE_BLOCK4
  integer, parameter :: ELPA_2STAGE_REAL_SSE_BLOCK6        = ELPA_C_2STAGE_REAL_SSE_BLOCK6
  integer, parameter :: ELPA_2STAGE_REAL_AVX_BLOCK2        = ELPA_C_2STAGE_REAL_AVX_BLOCK2
  integer, parameter :: ELPA_2STAGE_REAL_AVX_BLOCK4        = ELPA_C_2STAGE_REAL_AVX_BLOCK4
  integer, parameter :: ELPA_2STAGE_REAL_AVX_BLOCK6        = ELPA_C_2STAGE_REAL_AVX_BLOCK6
  integer, parameter :: ELPA_2STAGE_REAL_AVX2_BLOCK2       = ELPA_C_2STAGE_REAL_AVX2_BLOCK2
  integer, parameter :: ELPA_2STAGE_REAL_AVX2_BLOCK4       = ELPA_C_2STAGE_REAL_AVX2_BLOCK4
  integer, parameter :: ELPA_2STAGE_REAL_AVX2_BLOCK6       = ELPA_C_2STAGE_REAL_AVX2_BLOCK6
  integer, parameter :: ELPA_2STAGE_REAL_AVX512_BLOCK2     = ELPA_C_2STAGE_REAL_AVX512_BLOCK2
  integer, parameter :: ELPA_2STAGE_REAL_AVX512_BLOCK4     = ELPA_C_2STAGE_REAL_AVX512_BLOCK4
  integer, parameter :: ELPA_2STAGE_REAL_AVX512_BLOCK6     = ELPA_C_2STAGE_REAL_AVX512_BLOCK6
  integer, parameter :: ELPA_2STAGE_REAL_GPU               = ELPA_C_2STAGE_REAL_GPU
  integer, parameter :: ELPA_2STAGE_REAL_DEFAULT           = ELPA_C_2STAGE_REAL_DEFAULT
Andreas Marek's avatar
Andreas Marek committed
28

29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
  integer, parameter :: ELPA_2STAGE_COMPLEX_GENERIC        = ELPA_C_2STAGE_COMPLEX_GENERIC
  integer, parameter :: ELPA_2STAGE_COMPLEX_GENERIC_SIMPLE = ELPA_C_2STAGE_COMPLEX_GENERIC_SIMPLE
  integer, parameter :: ELPA_2STAGE_COMPLEX_BGP            = ELPA_C_2STAGE_COMPLEX_BGP
  integer, parameter :: ELPA_2STAGE_COMPLEX_BGQ            = ELPA_C_2STAGE_COMPLEX_BGQ
  integer, parameter :: ELPA_2STAGE_COMPLEX_SSE            = ELPA_C_2STAGE_COMPLEX_SSE
  integer, parameter :: ELPA_2STAGE_COMPLEX_SSE_BLOCK1     = ELPA_C_2STAGE_COMPLEX_SSE_BLOCK1
  integer, parameter :: ELPA_2STAGE_COMPLEX_SSE_BLOCK2     = ELPA_C_2STAGE_COMPLEX_SSE_BLOCK2
  integer, parameter :: ELPA_2STAGE_COMPLEX_AVX_BLOCK1     = ELPA_C_2STAGE_COMPLEX_AVX_BLOCK1
  integer, parameter :: ELPA_2STAGE_COMPLEX_AVX_BLOCK2     = ELPA_C_2STAGE_COMPLEX_AVX_BLOCK2
  integer, parameter :: ELPA_2STAGE_COMPLEX_AVX2_BLOCK1    = ELPA_C_2STAGE_COMPLEX_AVX2_BLOCK1
  integer, parameter :: ELPA_2STAGE_COMPLEX_AVX2_BLOCK2    = ELPA_C_2STAGE_COMPLEX_AVX2_BLOCK2
  integer, parameter :: ELPA_2STAGE_COMPLEX_AVX512_BLOCK1  = ELPA_C_2STAGE_COMPLEX_AVX512_BLOCK1
  integer, parameter :: ELPA_2STAGE_COMPLEX_AVX512_BLOCK2  = ELPA_C_2STAGE_COMPLEX_AVX512_BLOCK2
  integer, parameter :: ELPA_2STAGE_COMPLEX_GPU            = ELPA_C_2STAGE_COMPLEX_GPU
  integer, parameter :: ELPA_2STAGE_COMPLEX_DEFAULT        = ELPA_C_2STAGE_COMPLEX_DEFAULT
Andreas Marek's avatar
Andreas Marek committed
44

45
46
  integer, parameter :: ELPA_OK    = ELPA_C_OK
  integer, parameter :: ELPA_ERROR = ELPA_C_ERROR
Andreas Marek's avatar
Andreas Marek committed
47

48
49
50
  public :: elpa_init, elpa_initialized, elpa_uninit, elpa_create, elpa_t, c_int, c_double, c_float

  type :: elpa_t
Andreas Marek's avatar
Andreas Marek committed
51
   private
52
53
   type(c_ptr)         :: options = C_NULL_PTR
   integer             :: mpi_comm_parent = 0
54
55
56
57
58
59
60
   integer(kind=c_int) :: mpi_comm_rows = 0
   integer(kind=c_int) :: mpi_comm_cols = 0
   integer(kind=c_int) :: na = 0
   integer(kind=c_int) :: nev = 0
   integer(kind=c_int) :: local_nrows = 0
   integer(kind=c_int) :: local_ncols = 0
   integer(kind=c_int) :: nblk = 0
Andreas Marek's avatar
Andreas Marek committed
61
   contains
62
63
     generic, public :: set => elpa_set_integer
     generic, public :: get => elpa_get_integer
Andreas Marek's avatar
Andreas Marek committed
64

Andreas Marek's avatar
Andreas Marek committed
65
     procedure, public :: get_communicators => get_communicators
66
     generic, public :: solve => elpa_solve_real_double, &
67
68
69
70
                                 elpa_solve_real_single, &
                                 elpa_solve_complex_double, &
                                 elpa_solve_complex_single

71
72
73
74
75
76
77

     procedure, public :: destroy => elpa_destroy

     ! privates:
     procedure, private :: elpa_set_integer
     procedure, private :: elpa_get_integer
     procedure, private :: elpa_solve_real_double
78
     procedure, private :: elpa_solve_real_single
79
     procedure, private :: elpa_solve_complex_double
80
     procedure, private :: elpa_solve_complex_single
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107

  end type elpa_t

  logical :: initDone = .false.

  integer, parameter :: earliest_api_version = 20170403
  integer, parameter :: current_api_version  = 20170403

  interface
    function elpa_allocate_options() result(options) bind(C, name="elpa_allocate_options")
      import c_ptr
      type(c_ptr) :: options
    end function
  end interface


  interface
    subroutine elpa_free_options(options) bind(C, name="elpa_free_options")
      import c_ptr
      type(c_ptr), value :: options
    end subroutine
  end interface


  interface
    function get_int_option(options, name, success) result(value) bind(C, name="get_int_option")
      import c_ptr, c_char, c_int
108
      type(c_ptr), value                 :: options
109
      character(kind=c_char), intent(in) :: name(*)
110
111
      integer(kind=c_int)                :: value
      integer(kind=c_int), optional      :: success
112
113
114
    end function
  end interface

Andreas Marek's avatar
Andreas Marek committed
115

116
117
118
  interface
    function set_int_option(options, name, value) result(success) bind(C, name="set_int_option")
      import c_ptr, c_char, c_int
119
120
      type(c_ptr), value                     :: options
      character(kind=c_char), intent(in)     :: name(*)
121
      integer(kind=c_int), intent(in), value :: value
122
      integer(kind=c_int)                    :: success
123
124
125
126
127
128
129
130
131
132
133
    end function
  end interface


  contains


    function elpa_init(api_version) result(success)
      use elpa_utilities, only : error_unit
      implicit none
      integer, intent(in) :: api_version
134
      integer             :: success
135
136
137
138
139
140
141
142
143

      if (earliest_api_version <= api_version .and. api_version <= current_api_version) then
        initDone = .true.
        success = ELPA_OK
      else
        write(error_unit, "(a,i0,a)") "ELPA: Error API version ", api_version," is not supported by this library"
        success = ELPA_ERROR
      endif
    end function
Andreas Marek's avatar
Andreas Marek committed
144

145
146
147
148
149
150
151
152
153
154
155
156

    function elpa_initialized() result(state)
      logical :: state
      state = initDone
    end function


    subroutine elpa_uninit()
    end subroutine


    function elpa_create(na, nev, local_nrows, local_ncols, nblk, mpi_comm_parent, process_row, process_col, success) result(obj)
Andreas Marek's avatar
Andreas Marek committed
157
158
159
      use precision
      use elpa_mpi
      use elpa_utilities, only : error_unit
160
      use elpa1_new, only : elpa_get_communicators_new
Andreas Marek's avatar
Andreas Marek committed
161
      implicit none
Andreas Marek's avatar
Andreas Marek committed
162
163

      integer(kind=ik), intent(in) :: na, nev, local_nrows, local_ncols, nblk
164
165
166
      integer, intent(in)          :: mpi_comm_parent, process_row, process_col
      type(elpa_t)                 :: obj
      integer                      :: mpierr
Andreas Marek's avatar
Andreas Marek committed
167

168
      integer, optional            :: success
Andreas Marek's avatar
Andreas Marek committed
169

Andreas Marek's avatar
Andreas Marek committed
170
171
172
      ! check whether init has ever been called
      if (.not.(elpa_initialized())) then
        write(error_unit, *) "elpa_create(): you must call elpa_init() once before creating instances of ELPA"
173
174
175
        if(present(success)) then
          success = ELPA_ERROR
        endif
Andreas Marek's avatar
Andreas Marek committed
176
177
        return
      endif
Andreas Marek's avatar
Andreas Marek committed
178

179
180
181
182
183
184
      obj%options     = elpa_allocate_options()
      obj%na          = na
      obj%nev         = nev
      obj%local_nrows = local_nrows
      obj%local_ncols = local_ncols
      obj%nblk        = nblk
Andreas Marek's avatar
Andreas Marek committed
185

186
      obj%mpi_comm_parent = mpi_comm_parent
187
      mpierr = elpa_get_communicators_new(mpi_comm_parent, process_row, process_col, obj%mpi_comm_rows, obj%mpi_comm_cols)
Andreas Marek's avatar
Andreas Marek committed
188
189
      if (mpierr /= MPI_SUCCESS) then
        write(error_unit, *) "elpa_create(): error constructing row and column communicators"
190
191
192
        if(present(success)) then
          success = ELPA_ERROR
        endif
Andreas Marek's avatar
Andreas Marek committed
193
194
        return
      endif
Andreas Marek's avatar
Andreas Marek committed
195

196
197
198
      if(present(success)) then
        success = ELPA_OK
      endif
Andreas Marek's avatar
Andreas Marek committed
199

200
    end function
Andreas Marek's avatar
Andreas Marek committed
201
202


203
    subroutine elpa_set_integer(self, name, value, success)
Andreas Marek's avatar
Andreas Marek committed
204
      use iso_c_binding
205
      use elpa_utilities, only : error_unit
Andreas Marek's avatar
Andreas Marek committed
206
207
      implicit none
      class(elpa_t)                   :: self
208
      character(*), intent(in)        :: name
Andreas Marek's avatar
Andreas Marek committed
209
      integer(kind=c_int), intent(in) :: value
210
211
      integer, optional               :: success
      integer                         :: actual_success
Andreas Marek's avatar
Andreas Marek committed
212

213
      actual_success = set_int_option(self%options, name // c_null_char, value)
Andreas Marek's avatar
Andreas Marek committed
214

215
216
217
218
219
220
221
222
223
      if (present(success)) then
        success = actual_success

      else if (actual_success /= ELPA_OK) then
        write(error_unit,'(a,a,i0,a)') "ELPA: Error setting option '", name, "' to value ", value, &
                "and you did not check for errors!"

      end if
    end subroutine
Andreas Marek's avatar
Andreas Marek committed
224
225


226
    function elpa_get_integer(self, name, success) result(value)
Andreas Marek's avatar
Andreas Marek committed
227
228
      use iso_c_binding
      implicit none
229
230
231
232
233
234
235
236
237
238
      class(elpa_t)                  :: self
      character(*), intent(in)       :: name
      integer(kind=c_int)            :: value
      integer, intent(out), optional :: success
      integer(kind=c_int), target    :: int_success
      type(c_ptr) :: c_success_ptr

      value = get_int_option(self%options, name // c_null_char, success)

    end function
Andreas Marek's avatar
Andreas Marek committed
239
240


Andreas Marek's avatar
Andreas Marek committed
241
    subroutine get_communicators(self, mpi_comm_rows, mpi_comm_cols)
Andreas Marek's avatar
Andreas Marek committed
242
243
      use iso_c_binding
      implicit none
244
      class(elpa_t)                    :: self
Andreas Marek's avatar
Andreas Marek committed
245
246

      integer(kind=c_int), intent(out) :: mpi_comm_rows, mpi_comm_cols
Andreas Marek's avatar
Andreas Marek committed
247
248
249
      mpi_comm_rows = self%mpi_comm_rows
      mpi_comm_cols = self%mpi_comm_cols
    end subroutine
Andreas Marek's avatar
Andreas Marek committed
250

251
252

    subroutine elpa_solve_real_double(self, a, ev, q, success)
253
      use elpa2_new
254
      use elpa1_new
255
      use elpa_utilities, only : error_unit
Andreas Marek's avatar
Andreas Marek committed
256
257
258

      use iso_c_binding
      implicit none
259
      class(elpa_t)       :: self
Andreas Marek's avatar
Andreas Marek committed
260

261
262
263
264
265
266
!#ifdef USE_ASSUMED_SIZE
!      real(kind=c_double) :: a(self%local_nrows, *), q(self%local_nrows, *)
!#else
      real(kind=c_double) :: a(self%local_nrows, self%local_ncols), q(self%local_nrows, self%local_ncols)
!#endif
      real(kind=c_double) :: ev(self%na)
267
268
269
270
      integer, optional   :: success
      integer(kind=c_int) :: success_internal
      logical             :: success_l

271
272
273
274
275
276
277
278
279
280
281
282
283
      logical             :: useGPU

      if (self%get("gpu",success_internal) .eq. 1) then
        if (success_internal .ne. ELPA_OK) then
          print *,"Could not querry gpu"
          stop
        endif

        useGPU = .true.
      else
        useGPU = .false.
      endif

284
285
286
287
288
289
290
291
      if (self%get("solver",success_internal) .eq. 1) then
        if (success_internal .ne. ELPA_OK) then
          print *,"Could not querry solver"
          stop
        endif
        success_l = elpa_solve_evp_real_1stage_double_new(self%na, self%nev, a, self%local_nrows, ev, q,  &
                                                          self%local_nrows,  self%nblk, self%local_ncols, &
                                                          self%mpi_comm_rows, self%mpi_comm_cols,         &
292
                                                          self%mpi_comm_parent, useGPU)
293
294
295
296
297
298
299
300
301

      else if (self%get("solver",success_internal) .eq. 2) then
        if (success_internal .ne. ELPA_OK) then
          print *,"Could not querry solver"
          stop
        endif
        success_l = elpa_solve_evp_real_2stage_double_new(self%na, self%nev, a, self%local_nrows, ev, q,  &
                                                          self%local_nrows,  self%nblk, self%local_ncols, &
                                                          self%mpi_comm_rows, self%mpi_comm_cols,         &
302
                                                          self%mpi_comm_parent, useGPU)
303
304
305
306
      else
        print *,"unknown solver"
        stop
      endif
307
308
309
310
311
312
313
314
315
316

      if (present(success)) then
        if (success_l) then
          success = ELPA_OK
        else
          success = ELPA_ERROR
        endif
      else if (.not. success_l) then
        write(error_unit,'(a)') "ELPA: Error in solve() and you did not check for errors!"
      endif
Andreas Marek's avatar
Andreas Marek committed
317

318
319
    end subroutine

320
    subroutine elpa_solve_real_single(self, a, ev, q, success)
321
      use elpa2_new
322
      use elpa1_new
323
324
325
326
327
      use elpa_utilities, only : error_unit

      use iso_c_binding
      implicit none
      class(elpa_t)       :: self
328
329
330
331
332
333
!#ifdef USE_ASSUMED_SIZE
!      real(kind=c_float)  :: a(self%local_nrows, *), q(self%local_nrows, *)
!#else
      real(kind=c_float)  :: a(self%local_nrows, self%local_ncols), q(self%local_nrows, self%local_ncols)
!#endif
      real(kind=c_float)  :: ev(self%na)
334
335
336
      integer, optional   :: success
      integer(kind=c_int) :: success_internal
      logical             :: success_l
337

338
339
      logical             :: useGPU

340
#ifdef WANT_SINGLE_PRECISION_REAL
341
342
343
344
345
346
347
348
349
350
351
352

      if (self%get("gpu",success_internal) .eq. 1) then
        if (success_internal .ne. ELPA_OK) then
          print *,"Could not querry gpu"
          stop
        endif

        useGPU = .true.
      else
        useGPU = .false.
      endif

353
354
355
356
357
358
359
360
      if (self%get("solver",success_internal) .eq. 1) then
        if (success_internal .ne. ELPA_OK) then
          print *,"Could not querry solver"
          stop
        endif
        success_l = elpa_solve_evp_real_1stage_single_new(self%na, self%nev, a, self%local_nrows, ev, q,  &
                                                          self%local_nrows,  self%nblk, self%local_ncols, &
                                                          self%mpi_comm_rows, self%mpi_comm_cols,         &
361
                                                          self%mpi_comm_parent, useGPU)
362
363
364
365
366
367
368
369
370

      else if (self%get("solver",success_internal) .eq. 2) then
        if (success_internal .ne. ELPA_OK) then
          print *,"Could not querry solver"
          stop
        endif
        success_l = elpa_solve_evp_real_2stage_single_new(self%na, self%nev, a, self%local_nrows, ev, q,  &
                                                          self%local_nrows,  self%nblk, self%local_ncols, &
                                                          self%mpi_comm_rows, self%mpi_comm_cols,         &
371
                                                          self%mpi_comm_parent, useGPU)
372
373
374
375
      else
        print *,"unknown solver"
        stop
      endif
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391

      if (present(success)) then
        if (success_l) then
          success = ELPA_OK
        else
          success = ELPA_ERROR
        endif
      else if (.not. success_l) then
        write(error_unit,'(a)') "ELPA: Error in solve() and you did not check for errors!"
      endif
#else
      success = ELPA_ERROR
#endif

    end subroutine

392
393

    subroutine elpa_solve_complex_double(self, a, ev, q, success)
394
      use elpa2_new
395
      use elpa1_new
396
397
398
399
400
401
      use elpa_utilities, only : error_unit

      use iso_c_binding
      implicit none
      class(elpa_t)                  :: self

402
403
404
!#ifdef USE_ASSUMED_SIZE
!      complex(kind=c_double_complex) :: a(self%local_nrows, *), q(self%local_nrows, *)
!#else
405
      complex(kind=c_double_complex) :: a(self%local_nrows, self%local_ncols), q(self%local_nrows, self%local_ncols)
406
!#endif
407
      real(kind=c_double)            :: ev(self%na)
408

409
410
411
      integer, optional              :: success
      integer(kind=c_int)            :: success_internal
      logical                        :: success_l
412

413
414
415
416
417
418
419
420
421
422
423
424
425
      logical                        :: useGPU

      if (self%get("gpu",success_internal) .eq. 1) then
        if (success_internal .ne. ELPA_OK) then
          print *,"Could not querry gpu"
          stop
        endif

        useGPU = .true.
      else
        useGPU = .false.
      endif

426
427
428
429
430
431
432
433
      if (self%get("solver",success_internal) .eq. 1) then
        if (success_internal .ne. ELPA_OK) then
          print *,"Could not querry solver"
          stop
        endif
        success_l = elpa_solve_evp_complex_1stage_double_new(self%na, self%nev, a, self%local_nrows, ev, q,  &
                                                          self%local_nrows,  self%nblk, self%local_ncols, &
                                                          self%mpi_comm_rows, self%mpi_comm_cols,         &
434
                                                          self%mpi_comm_parent, useGPU)
435
436
437
438
439
440
441
442
443

      else if (self%get("solver",success_internal) .eq. 2) then
        if (success_internal .ne. ELPA_OK) then
          print *,"Could not querry solver"
          stop
        endif
        success_l = elpa_solve_evp_complex_2stage_double_new(self%na, self%nev, a, self%local_nrows, ev, q,  &
                                                          self%local_nrows,  self%nblk, self%local_ncols, &
                                                          self%mpi_comm_rows, self%mpi_comm_cols,         &
444
                                                          self%mpi_comm_parent, useGPU)
445
446
447
448
      else
        print *,"unknown solver"
        stop
      endif
449
450
451
452
453
454
455
456
457
458
459
460
461
462

      if (present(success)) then
        if (success_l) then
          success = ELPA_OK
        else
          success = ELPA_ERROR
        endif
      else if (.not. success_l) then
        write(error_unit,'(a)') "ELPA: Error in solve() and you did not check for errors!"
      endif

    end subroutine


463
    subroutine elpa_solve_complex_single(self, a, ev, q, success)
464
      use elpa2_new
465
      use elpa1_new
466
467
468
469
      use elpa_utilities, only : error_unit

      use iso_c_binding
      implicit none
470
      class(elpa_t)                 :: self
471
472
473
!#ifdef USE_ASSUMED_SIZE
!      complex(kind=c_float_complex) :: a(self%local_nrows, *), q(self%local_nrows, *)
!#else
474
      complex(kind=c_float_complex) :: a(self%local_nrows, self%local_ncols), q(self%local_nrows, self%local_ncols)
475
!#endif
476
      real(kind=c_float)            :: ev(self%na)
477

478
479
480
      integer, optional             :: success
      integer(kind=c_int)           :: success_internal
      logical                       :: success_l
481

482
483
      logical                       :: useGPU

484
#ifdef WANT_SINGLE_PRECISION_COMPLEX
485
486
487
488
489
490
491
492
493
494
495
      if (self%get("gpu",success_internal) .eq. 1) then
        if (success_internal .ne. ELPA_OK) then
          print *,"Could not querry gpu"
          stop
        endif

        useGPU = .true.
      else
        useGPU = .false.
      endif

496
497
498
499
500
501
502
503
      if (self%get("solver",success_internal) .eq. 1) then
        if (success_internal .ne. ELPA_OK) then
          print *,"Could not querry solver"
          stop
        endif
        success_l = elpa_solve_evp_complex_1stage_single_new(self%na, self%nev, a, self%local_nrows, ev, q,  &
                                                          self%local_nrows,  self%nblk, self%local_ncols, &
                                                          self%mpi_comm_rows, self%mpi_comm_cols,         &
504
                                                          self%mpi_comm_parent, useGPU)
505
506
507
508
509
510
511
512
513

      else if (self%get("solver",success_internal) .eq. 2) then
        if (success_internal .ne. ELPA_OK) then
          print *,"Could not querry solver"
          stop
        endif
        success_l = elpa_solve_evp_complex_2stage_single_new(self%na, self%nev, a, self%local_nrows, ev, q,  &
                                                          self%local_nrows,  self%nblk, self%local_ncols, &
                                                          self%mpi_comm_rows, self%mpi_comm_cols,         &
514
                                                          self%mpi_comm_parent, useGPU)
515
516
517
518
      else
        print *,"unknown solver"
        stop
      endif
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536

      if (present(success)) then
        if (success_l) then
          success = ELPA_OK
        else
          success = ELPA_ERROR
        endif
      else if (.not. success_l) then
        write(error_unit,'(a)') "ELPA: Error in solve() and you did not check for errors!"
      endif
#else
      success = ELPA_ERROR
#endif


    end subroutine


537
538
539
540
    subroutine elpa_destroy(self)
      class(elpa_t) :: self
      call elpa_free_options(self%options)
    end subroutine
Andreas Marek's avatar
Andreas Marek committed
541
542
543

end module