mod_cuda.F90 29.1 KB
Newer Older
1
2
3
4
5
6
7
8
9
10
11
!    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,
12
!    - Max-Plack-Institut für Mathematik in den Naturwissenschaften,
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
!      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


44
45
46
#include "config-f90.h"
module cuda_functions
  use iso_c_binding
47
  use precision
48
49
50
51
  implicit none

  public

52
53
54
55
56
  integer(kind=ik) :: cudaMemcpyHostToDevice
  integer(kind=ik) :: cudaMemcpyDeviceToHost
  integer(kind=ik) :: cudaHostRegisterPortable
  integer(kind=ik) :: cudaHostRegisterMapped
  integer(kind=ik) :: cudaMemcpyDeviceToDevice
Andreas Marek's avatar
Andreas Marek committed
57

58
59
  ! TODO global variable, has to be changed
  integer(kind=C_intptr_T) :: cublasHandle = -1
60

61
  integer(kind=c_intptr_t), parameter :: size_of_double_real    = 8_rk8
62
#ifdef WANT_SINGLE_PRECISION_REAL
63
  integer(kind=c_intptr_t), parameter :: size_of_single_real    = 4_rk4
64
65
#endif

66
  integer(kind=c_intptr_t), parameter :: size_of_double_complex = 16_ck8
67
#ifdef WANT_SINGLE_PRECISION_COMPLEX
68
  integer(kind=c_intptr_t), parameter :: size_of_single_complex = 8_ck4
69
#endif
70
71

  ! functions to set and query the CUDA devices
Pavel Kus's avatar
Pavel Kus committed
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
  interface
    function cublas_create_c(handle) result(istat) &
             bind(C, name="cublasCreateFromC")
      use iso_c_binding
      implicit none
      integer(kind=C_intptr_T) :: handle
      integer(kind=C_INT)  :: istat
    end function cublas_create_c
  end interface  

  interface
    function cublas_destroy_c(handle) result(istat) &
             bind(C, name="cublasDestroyFromC")
      use iso_c_binding
      implicit none
      integer(kind=C_intptr_T) :: handle
      integer(kind=C_INT)  :: istat
    end function cublas_destroy_c
  end interface  
91

92
93
94
95
96
97
98
99
100
  interface
    function cuda_threadsynchronize_c() result(istat) &
             bind(C,name="cudaThreadSynchronizeFromC")
      use iso_c_binding
      implicit none
      integer(kind=C_INT)  :: istat
    end function cuda_threadsynchronize_c
  end interface

101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
  interface
    function cuda_setdevice_c(n) result(istat) &
             bind(C, name="cudaSetDeviceFromC")

      use iso_c_binding
      implicit none
      integer(kind=C_INT), value    :: n
      integer(kind=C_INT)           :: istat
    end function cuda_setdevice_c
  end interface

  interface
    function cuda_getdevicecount_c(n) result(istat) &
             bind(C, name="cudaGetDeviceCountFromC")
      use iso_c_binding
      implicit none
      integer(kind=C_INT), intent(out) :: n
      integer(kind=C_INT)              :: istat
    end function cuda_getdevicecount_c
  end interface

  interface
    function cuda_devicesynchronize_c()result(istat) &
             bind(C,name='cudaDeviceSynchronizeFromC')

      use iso_c_binding

      implicit none
      integer(kind=C_INT)                       :: istat

    end function cuda_devicesynchronize_c
  end interface


  ! functions to copy CUDA memory
  interface
    function cuda_memcpyDeviceToDevice_c() result(flag) &
             bind(C, name="cudaMemcpyDeviceToDeviceFromC")
      use iso_c_binding
      implicit none
      integer(kind=c_int) :: flag
    end function
  end interface

  interface
    function cuda_memcpyHostToDevice_c() result(flag) &
             bind(C, name="cudaMemcpyHostToDeviceFromC")
      use iso_c_binding
      implicit none
      integer(kind=c_int) :: flag
    end function
  end interface

  interface
    function cuda_memcpyDeviceToHost_c() result(flag) &
             bind(C, name="cudaMemcpyDeviceToHostFromC")
      use iso_c_binding
      implicit none
      integer(kind=c_int) :: flag
    end function
  end interface

  interface
    function cuda_hostRegisterPortable_c() result(flag) &
             bind(C, name="cudaHostRegisterPortableFromC")
      use iso_c_binding
      implicit none
      integer(kind=c_int) :: flag
    end function
  end interface

  interface
    function cuda_hostRegisterMapped_c() result(flag) &
             bind(C, name="cudaHostRegisterMappedFromC")
      use iso_c_binding
      implicit none
      integer(kind=c_int) :: flag
    end function
  end interface

  interface
    function cuda_memcpy_c(dst, src, size, dir) result(istat) &
             bind(C, name="cudaMemcpyFromC")

      use iso_c_binding

      implicit none
      integer(kind=C_intptr_t), value              :: dst
      integer(kind=C_intptr_t), value              :: src
190
      integer(kind=c_intptr_t), intent(in), value    :: size
191
192
193
194
195
196
197
198
199
200
201
202
203
204
      integer(kind=C_INT), intent(in), value       :: dir
      integer(kind=C_INT)                          :: istat

    end function cuda_memcpy_c
  end interface

  interface
    function cuda_memcpy2d_c(dst, dpitch, src, spitch, width, height , dir) result(istat) &
             bind(C, name="cudaMemcpy2dFromC")

      use iso_c_binding

      implicit none

205
      integer(kind=C_intptr_T), value                :: dst
206
      integer(kind=c_intptr_t), intent(in), value    :: dpitch
207
      integer(kind=C_intptr_T), value                :: src
208
209
210
      integer(kind=c_intptr_t), intent(in), value    :: spitch
      integer(kind=c_intptr_t), intent(in), value    :: width
      integer(kind=c_intptr_t), intent(in), value    :: height
211
212
      integer(kind=C_INT), intent(in), value         :: dir
      integer(kind=C_INT)                            :: istat
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239

    end function cuda_memcpy2d_c
  end interface

  ! functions to allocate and free CUDA memory

  interface
    function cuda_free_c(a) result(istat) &
             bind(C, name="cudaFreeFromC")

      use iso_c_binding

      implicit none
      integer(kind=C_intptr_T), value  :: a
      integer(kind=C_INT)              :: istat

    end function cuda_free_c
  end interface

  interface
    function cuda_malloc_c(a, width_height) result(istat) &
             bind(C, name="cudaMallocFromC")

      use iso_c_binding
      implicit none

      integer(kind=C_intptr_T)                    :: a
240
      integer(kind=c_intptr_t), intent(in), value   :: width_height
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
      integer(kind=C_INT)                         :: istat

    end function cuda_malloc_c
  end interface

  interface
    function cuda_memset_c(a, val, size) result(istat) &
             bind(C, name="cudaMemsetFromC")

      use iso_c_binding

      implicit none

      integer(kind=C_intptr_T), value            :: a
      integer(kind=C_INT), value                 :: val
256
      integer(kind=c_intptr_t), intent(in), value  :: size
257
258
259
260
261
262
263
      integer(kind=C_INT)                        :: istat

    end function cuda_memset_c
  end interface

  ! cuBLAS
  interface
Pavel Kus's avatar
Pavel Kus committed
264
265
    subroutine cublas_dgemm_c(handle, cta, ctb, m, n, k, alpha, a, lda, b, ldb, beta, c, ldc) &
                              bind(C,name='cublasDgemm_elpa_wrapper')
266
267
268
269
270
271
272
273
274

      use iso_c_binding

      implicit none
      character(1,C_CHAR),value               :: cta, ctb
      integer(kind=C_INT),value               :: m,n,k
      integer(kind=C_INT), intent(in), value  :: lda,ldb,ldc
      real(kind=C_DOUBLE),value               :: alpha,beta
      integer(kind=C_intptr_T), value         :: a, b, c
Pavel Kus's avatar
Pavel Kus committed
275
276
      integer(kind=C_intptr_T), value         :: handle

277
278
279
    end subroutine cublas_dgemm_c
  end interface

280
  interface
Pavel Kus's avatar
Pavel Kus committed
281
282
    subroutine cublas_sgemm_c(handle, cta, ctb, m, n, k, alpha, a, lda, b, ldb, beta, c, ldc) &
                              bind(C,name='cublasSgemm_elpa_wrapper')
283
284
285
286
287
288
289
290
291

      use iso_c_binding

      implicit none
      character(1,C_CHAR),value               :: cta, ctb
      integer(kind=C_INT),value               :: m,n,k
      integer(kind=C_INT), intent(in), value  :: lda,ldb,ldc
      real(kind=C_FLOAT),value                :: alpha,beta
      integer(kind=C_intptr_T), value         :: a, b, c
Pavel Kus's avatar
Pavel Kus committed
292
293
      integer(kind=C_intptr_T), value         :: handle
      
294
295
296
    end subroutine cublas_sgemm_c
  end interface

297
  interface
Pavel Kus's avatar
Pavel Kus committed
298
299
    subroutine cublas_dtrmm_c(handle, side, uplo, trans, diag, m, n, alpha, a, lda, b, ldb) &
                              bind(C,name='cublasDtrmm_elpa_wrapper')
300
301
302
303
304
305
306
307
308

      use iso_c_binding

      implicit none
      character(1,C_CHAR),value               :: side, uplo, trans, diag
      integer(kind=C_INT),value               :: m,n
      integer(kind=C_INT), intent(in), value  :: lda,ldb
      real(kind=C_DOUBLE), value              :: alpha
      integer(kind=C_intptr_T), value         :: a, b
Pavel Kus's avatar
Pavel Kus committed
309
310
      integer(kind=C_intptr_T), value         :: handle
      
311
312
313
    end subroutine cublas_dtrmm_c
  end interface

314
  interface
Pavel Kus's avatar
Pavel Kus committed
315
316
    subroutine cublas_strmm_c(handle, side, uplo, trans, diag, m, n, alpha, a, lda, b, ldb) &
                              bind(C,name='cublasStrmm_elpa_wrapper')
317
318
319
320
321
322
323
324
325

      use iso_c_binding

      implicit none
      character(1,C_CHAR),value               :: side, uplo, trans, diag
      integer(kind=C_INT),value               :: m,n
      integer(kind=C_INT), intent(in), value  :: lda,ldb
      real(kind=C_FLOAT), value               :: alpha
      integer(kind=C_intptr_T), value         :: a, b
Pavel Kus's avatar
Pavel Kus committed
326
327
      integer(kind=C_intptr_T), value         :: handle

328
329
330
    end subroutine cublas_strmm_c
  end interface

331
  interface
Pavel Kus's avatar
Pavel Kus committed
332
333
    subroutine cublas_zgemm_c(handle, cta, ctb, m, n, k, alpha, a, lda, b, ldb, beta, c,ldc) &
                              bind(C,name='cublasZgemm_elpa_wrapper')
334
335
336
337
338
339
340

      use iso_c_binding

      implicit none
      character(1,C_CHAR),value              :: cta, ctb
      integer(kind=C_INT),value              :: m,n,k
      integer(kind=C_INT), intent(in), value :: lda,ldb,ldc
341
      complex(kind=C_DOUBLE_COMPLEX),value           :: alpha,beta
342
      integer(kind=C_intptr_T), value        :: a, b, c
Pavel Kus's avatar
Pavel Kus committed
343
      integer(kind=C_intptr_T), value         :: handle
344
345
346
347

    end subroutine cublas_zgemm_c
  end interface

348
  interface
Pavel Kus's avatar
Pavel Kus committed
349
350
    subroutine cublas_cgemm_c(handle, cta, ctb, m, n, k, alpha, a, lda, b, ldb, beta, c,ldc) &
                              bind(C,name='cublasCgemm_elpa_wrapper')
351
352
353
354
355
356
357

      use iso_c_binding

      implicit none
      character(1,C_CHAR),value              :: cta, ctb
      integer(kind=C_INT),value              :: m,n,k
      integer(kind=C_INT), intent(in), value :: lda,ldb,ldc
358
      complex(kind=C_FLOAT_COMPLEX),value            :: alpha,beta
359
      integer(kind=C_intptr_T), value        :: a, b, c
Pavel Kus's avatar
Pavel Kus committed
360
      integer(kind=C_intptr_T), value         :: handle
361
362
363
364

    end subroutine cublas_cgemm_c
  end interface

365
  interface
Pavel Kus's avatar
Pavel Kus committed
366
367
    subroutine cublas_ztrmm_c(handle, side, uplo, trans, diag, m, n, alpha, a, lda, b, ldb) &
                              bind(C,name='cublasZtrmm_elpa_wrapper')
368
369
370
371
372
373
374

      use iso_c_binding

      implicit none
      character(1,C_CHAR),value              :: side, uplo, trans, diag
      integer(kind=C_INT),value              :: m,n
      integer(kind=C_INT), intent(in), value :: lda,ldb
375
      complex(kind=C_DOUBLE_COMPLEX), value          :: alpha
376
      integer(kind=C_intptr_T), value        :: a, b
Pavel Kus's avatar
Pavel Kus committed
377
      integer(kind=C_intptr_T), value         :: handle
378
379
380
381

    end subroutine cublas_ztrmm_c
  end interface

382
  interface
Pavel Kus's avatar
Pavel Kus committed
383
384
    subroutine cublas_ctrmm_c(handle, side, uplo, trans, diag, m, n, alpha, a, lda, b, ldb) &
                              bind(C,name='cublasCtrmm_elpa_wrapper')
385
386
387
388
389
390
391

      use iso_c_binding

      implicit none
      character(1,C_CHAR),value              :: side, uplo, trans, diag
      integer(kind=C_INT),value              :: m,n
      integer(kind=C_INT), intent(in), value :: lda,ldb
392
      complex(kind=C_FLOAT_COMPLEX), value           :: alpha
393
      integer(kind=C_intptr_T), value        :: a, b
Pavel Kus's avatar
Pavel Kus committed
394
      integer(kind=C_intptr_T), value         :: handle
395
396
397
398

    end subroutine cublas_ctrmm_c
  end interface

399
  interface
Pavel Kus's avatar
Pavel Kus committed
400
401
    subroutine cublas_dgemv_c(handle, cta, m, n, alpha, a, lda, x, incx, beta, y, incy) &
                              bind(C,name='cublasDgemv_elpa_wrapper')
402
403
404
405
406
407
408
409
410

      use iso_c_binding

      implicit none
      character(1,C_CHAR),value               :: cta
      integer(kind=C_INT),value               :: m,n
      integer(kind=C_INT), intent(in), value  :: lda,incx,incy
      real(kind=C_DOUBLE),value               :: alpha,beta
      integer(kind=C_intptr_T), value         :: a, x, y
Pavel Kus's avatar
Pavel Kus committed
411
412
      integer(kind=C_intptr_T), value         :: handle

413
414
415
416
    end subroutine cublas_dgemv_c
  end interface

  interface
Pavel Kus's avatar
Pavel Kus committed
417
418
    subroutine cublas_sgemv_c(handle, cta, m, n, alpha, a, lda, x, incx, beta, y, incy) &
                              bind(C,name='cublasSgemv_elpa_wrapper')
419
420
421
422
423
424
425
426
427

      use iso_c_binding

      implicit none
      character(1,C_CHAR),value               :: cta
      integer(kind=C_INT),value               :: m,n
      integer(kind=C_INT), intent(in), value  :: lda,incx,incy
      real(kind=C_FLOAT),value                :: alpha,beta
      integer(kind=C_intptr_T), value         :: a, x, y
Pavel Kus's avatar
Pavel Kus committed
428
429
      integer(kind=C_intptr_T), value         :: handle

430
431
432
    end subroutine cublas_sgemv_c
  end interface

433
  interface
Pavel Kus's avatar
Pavel Kus committed
434
435
    subroutine cublas_zgemv_c(handle, cta, m, n, alpha, a, lda, x, incx, beta, y, incy) &
                              bind(C,name='cublasZgemv_elpa_wrapper')
436
437
438
439
440
441
442

      use iso_c_binding

      implicit none
      character(1,C_CHAR),value               :: cta
      integer(kind=C_INT),value               :: m,n
      integer(kind=C_INT), intent(in), value  :: lda,incx,incy
443
      complex(kind=C_DOUBLE_COMPLEX),value               :: alpha,beta
444
      integer(kind=C_intptr_T), value         :: a, x, y
Pavel Kus's avatar
Pavel Kus committed
445
446
      integer(kind=C_intptr_T), value         :: handle

447
448
449
450
    end subroutine cublas_zgemv_c
  end interface

  interface
Pavel Kus's avatar
Pavel Kus committed
451
452
    subroutine cublas_cgemv_c(handle, cta, m, n, alpha, a, lda, x, incx, beta, y, incy) &
                              bind(C,name='cublasCgemv_elpa_wrapper')
453
454
455
456
457
458
459

      use iso_c_binding

      implicit none
      character(1,C_CHAR),value               :: cta
      integer(kind=C_INT),value               :: m,n
      integer(kind=C_INT), intent(in), value  :: lda,incx,incy
460
      complex(kind=C_FLOAT_COMPLEX),value                :: alpha,beta
461
      integer(kind=C_intptr_T), value         :: a, x, y
Pavel Kus's avatar
Pavel Kus committed
462
      integer(kind=C_intptr_T), value         :: handle
Pavel Kus's avatar
Pavel Kus committed
463

Pavel Kus's avatar
Pavel Kus committed
464
    end subroutine cublas_cgemv_c
Pavel Kus's avatar
Pavel Kus committed
465
466
467
  end interface


Pavel Kus's avatar
Pavel Kus committed
468
  contains
Pavel Kus's avatar
Pavel Kus committed
469

Pavel Kus's avatar
Pavel Kus committed
470
    ! functions to set and query the CUDA devices
Pavel Kus's avatar
Pavel Kus committed
471

Pavel Kus's avatar
Pavel Kus committed
472
473
474
   function cublas_create(handle) result(success)
     use iso_c_binding
     implicit none
475

Pavel Kus's avatar
Pavel Kus committed
476
477
478
479
480
481
482
483
     integer(kind=C_intptr_t)                  :: handle
     logical                                   :: success
#ifdef WITH_GPU_VERSION
     success = cublas_create_c(handle) /= 0
#else
     success = .true.
#endif
   end function
484

Pavel Kus's avatar
Pavel Kus committed
485
486
487
   function cublas_destroy(handle) result(success)
     use iso_c_binding
     implicit none
488

Pavel Kus's avatar
Pavel Kus committed
489
490
491
492
493
494
495
496
497
     integer(kind=C_intptr_t)                  :: handle
     logical                                   :: success
#ifdef WITH_GPU_VERSION
     success = cublas_destroy_c(handle) /= 0
#else
     success = .true.
#endif
   end function
    
498
499
500
501
502
503
504
505
506
507
508
509
510
    function cuda_threadsynchronize() result(success)
      use iso_c_binding

      implicit none

      logical :: success
#ifdef WITH_GPU_VERSION
      success = cuda_threadsynchronize_c() /= 0
#else
      success = .true.
#endif
    end function cuda_threadsynchronize

511
512
513
514
515
    function cuda_setdevice(n) result(success)
      use iso_c_binding

      implicit none

516
517
      integer(kind=ik), intent(in)  :: n
      logical                       :: success
518
519
520
521
522
523
524
525
526
527
528
#ifdef WITH_GPU_VERSION
      success = cuda_setdevice_c(int(n,kind=c_int)) /= 0
#else
      success = .true.
#endif
    end function cuda_setdevice

    function cuda_getdevicecount(n) result(success)
      use iso_c_binding
      implicit none

529
      integer(kind=ik)     :: n
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
      integer(kind=c_int)  :: nCasted
      logical              :: success
#ifdef WITH_GPU_VERSION
      success = cuda_getdevicecount_c(nCasted) /=0
      n = int(nCasted)
#else
      success = .true.
      n = 0
#endif
    end function cuda_getdevicecount

    function cuda_devicesynchronize()result(success)

      use iso_c_binding

      implicit none
      logical :: success
#ifdef WITH_GPU_VERSION
      success = cuda_devicesynchronize_c() /=0
#else
550
      success = .true.
551
552
553
554
555
556
557
558
559
560
#endif
    end function cuda_devicesynchronize
    ! functions to allocate and free memory

    function cuda_malloc(a, width_height) result(success)

     use iso_c_binding
     implicit none

     integer(kind=C_intptr_t)                  :: a
561
     integer(kind=c_intptr_t), intent(in)        :: width_height
562
563
564
565
     logical                                   :: success
#ifdef WITH_GPU_VERSION
     success = cuda_malloc_c(a, width_height) /= 0
#else
566
     success = .true.
567
568
569
570
571
572
573
574
575
576
577
578
579
#endif
   end function

   function cuda_free(a) result(success)

     use iso_c_binding

     implicit none
     integer(kind=C_intptr_T) :: a
     logical                  :: success
#ifdef WITH_GPU_VERSION
     success = cuda_free_c(a) /= 0
#else
580
     success = .true.
581
582
583
584
585
586
587
588
589
590
#endif
   end function cuda_free

 function cuda_memset(a, val, size) result(success)

   use iso_c_binding

   implicit none

   integer(kind=c_intptr_t)                :: a
591
   integer(kind=ik)                        :: val
592
   integer(kind=c_intptr_t), intent(in)      :: size
593
594
595
596
   integer(kind=C_INT)                     :: istat

   logical :: success
#ifdef WITH_GPU_VERSION
597
   success= cuda_memset_c(a, int(val,kind=c_int), int(size,kind=c_intptr_t)) /=0
598
#else
599
   success = .true.
600
601
602
603
604
605
606
607
#endif
 end function cuda_memset

 ! functions to memcopy CUDA memory

 function cuda_memcpyDeviceToDevice() result(flag)
   use iso_c_binding
   implicit none
608
   integer(kind=ik) :: flag
609
610
611
612
613
614
615
616
617
#ifdef WITH_GPU_VERSION
   flag = int(cuda_memcpyDeviceToDevice_c())
#else
   flag = 0
#endif
 end function

 function cuda_memcpyHostToDevice() result(flag)
   use iso_c_binding
618
   use precision
619
   implicit none
620
   integer(kind=ik) :: flag
621
622
623
624
625
626
627
628
629
#ifdef WITH_GPU_VERSION
   flag = int(cuda_memcpyHostToDevice_c())
#else
   flag = 0
#endif
 end function

 function cuda_memcpyDeviceToHost() result(flag)
   use iso_c_binding
630
   use precision
631
   implicit none
632
   integer(kind=ik) :: flag
633
634
635
636
637
638
639
640
641
#ifdef WITH_GPU_VERSION
   flag = int( cuda_memcpyDeviceToHost_c())
#else
   flag = 0
#endif
 end function

 function cuda_hostRegisterPortable() result(flag)
   use iso_c_binding
642
   use precision
643
   implicit none
644
   integer(kind=ik) :: flag
645
646
647
648
649
650
651
652
653
#ifdef WITH_GPU_VERSION
   flag = int(cuda_hostRegisterPortable_c())
#else
   flag = 0
#endif
 end function

 function cuda_hostRegisterMapped() result(flag)
   use iso_c_binding
654
   use precision
655
   implicit none
656
   integer(kind=ik) :: flag
657
658
659
660
661
662
663
664
665
666
667
668
669
670
#ifdef WITH_GPU_VERSION
   flag = int(cuda_hostRegisterMapped_c())
#else
   flag = 0
#endif
 end function

 function cuda_memcpy(dst, src, size, dir) result(success)

      use iso_c_binding

      implicit none
      integer(kind=C_intptr_t)              :: dst
      integer(kind=C_intptr_t)              :: src
671
      integer(kind=c_intptr_t), intent(in)    :: size
672
673
      integer(kind=C_INT), intent(in)       :: dir
      logical :: success
674

675
676
677
#ifdef WITH_GPU_VERSION
        success = cuda_memcpy_c(dst, src, size, dir) /= 0
#else
678
        success = .true.
679
680
681
682
683
684
685
686
687
688
#endif
    end function

    function cuda_memcpy2d(dst, dpitch, src, spitch, width, height , dir) result(success)

      use iso_c_binding

      implicit none

      integer(kind=C_intptr_T)           :: dst
689
      integer(kind=c_intptr_t), intent(in) :: dpitch
690
      integer(kind=C_intptr_T)           :: src
691
692
693
      integer(kind=c_intptr_t), intent(in) :: spitch
      integer(kind=c_intptr_t), intent(in) :: width
      integer(kind=c_intptr_t), intent(in) :: height
694
695
696
697
698
      integer(kind=C_INT), intent(in)    :: dir
      logical                            :: success
#ifdef WITH_GPU_VERSION
      success = cuda_memcpy2d_c(dst, dpitch, src, spitch, width, height , dir) /= 0
#else
699
      success = .true.
700
701
702
703
704
705
706
707
#endif
    end function cuda_memcpy2d

    ! cuBLAS
    subroutine cublas_dgemm(cta, ctb, m, n, k, alpha, a, lda, b, ldb, beta, c, ldc)
      use iso_c_binding

      implicit none
708
      character(1,C_CHAR),value       :: cta, ctb
709
710
711
712
713
      integer(kind=C_INT)             :: m,n,k
      integer(kind=C_INT), intent(in) :: lda,ldb,ldc
      real(kind=C_DOUBLE)             :: alpha,beta
      integer(kind=C_intptr_T)        :: a, b, c
#ifdef WITH_GPU_VERSION
Pavel Kus's avatar
Pavel Kus committed
714
      call cublas_dgemm_c(cublasHandle, cta, ctb, m, n, k, alpha, a, lda, b, ldb, beta, c, ldc)
715
716
717
#endif
    end subroutine cublas_dgemm

718
719
720
721
    subroutine cublas_sgemm(cta, ctb, m, n, k, alpha, a, lda, b, ldb, beta, c, ldc)
      use iso_c_binding

      implicit none
722
      character(1,C_CHAR),value       :: cta, ctb
723
724
725
726
727
      integer(kind=C_INT)             :: m,n,k
      integer(kind=C_INT), intent(in) :: lda,ldb,ldc
      real(kind=C_FLOAT)              :: alpha,beta
      integer(kind=C_intptr_T)        :: a, b, c
#ifdef WITH_GPU_VERSION
Pavel Kus's avatar
Pavel Kus committed
728
      call cublas_sgemm_c(cublasHandle, cta, ctb, m, n, k, alpha, a, lda, b, ldb, beta, c, ldc)
729
730
731
#endif
    end subroutine cublas_sgemm

732
733
734
735
736
    subroutine cublas_dtrmm(side, uplo, trans, diag, m, n, alpha, a, lda, b, ldb)

      use iso_c_binding

      implicit none
737
      character(1,C_CHAR),value       :: side, uplo, trans, diag
738
739
740
741
742
      integer(kind=C_INT)             :: m,n
      integer(kind=C_INT), intent(in) :: lda,ldb
      real(kind=C_DOUBLE)             :: alpha
      integer(kind=C_intptr_T)        :: a, b
#ifdef WITH_GPU_VERSION
Pavel Kus's avatar
Pavel Kus committed
743
      call cublas_dtrmm_c(cublasHandle, side, uplo, trans, diag, m, n, alpha, a, lda, b, ldb)
744
745
746
#endif
    end subroutine cublas_dtrmm

747
748
749
750
751
    subroutine cublas_strmm(side, uplo, trans, diag, m, n, alpha, a, lda, b, ldb)

      use iso_c_binding

      implicit none
752
      character(1,C_CHAR),value       :: side, uplo, trans, diag
753
754
755
756
757
      integer(kind=C_INT)             :: m,n
      integer(kind=C_INT), intent(in) :: lda,ldb
      real(kind=C_FLOAT)              :: alpha
      integer(kind=C_intptr_T)        :: a, b
#ifdef WITH_GPU_VERSION
Pavel Kus's avatar
Pavel Kus committed
758
      call cublas_strmm_c(cublasHandle, side, uplo, trans, diag, m, n, alpha, a, lda, b, ldb)
759
760
761
#endif
    end subroutine cublas_strmm

762
763
764
765
766
    subroutine cublas_zgemm(cta, ctb, m, n, k, alpha, a, lda, b, ldb, beta, c,ldc)

      use iso_c_binding

      implicit none
767
      character(1,C_CHAR),value       :: cta, ctb
768
769
      integer(kind=C_INT)             :: m,n,k
      integer(kind=C_INT), intent(in) :: lda,ldb,ldc
770
      complex(kind=C_DOUBLE_COMPLEX)          :: alpha,beta
771
772
      integer(kind=C_intptr_T)        :: a, b, c
#ifdef WITH_GPU_VERSION
Pavel Kus's avatar
Pavel Kus committed
773
      call cublas_zgemm_c(cublasHandle, cta, ctb, m, n, k, alpha, a, lda, b, ldb, beta, c,ldc)
774
775
776
#endif
    end subroutine cublas_zgemm

777
778
779
780
781
    subroutine cublas_cgemm(cta, ctb, m, n, k, alpha, a, lda, b, ldb, beta, c,ldc)

      use iso_c_binding

      implicit none
782
      character(1,C_CHAR),value       :: cta, ctb
783
784
      integer(kind=C_INT)             :: m,n,k
      integer(kind=C_INT), intent(in) :: lda,ldb,ldc
785
      complex(kind=C_FLOAT_COMPLEX)           :: alpha,beta
786
787
      integer(kind=C_intptr_T)        :: a, b, c
#ifdef WITH_GPU_VERSION
Pavel Kus's avatar
Pavel Kus committed
788
      call cublas_cgemm_c(cublasHandle, cta, ctb, m, n, k, alpha, a, lda, b, ldb, beta, c,ldc)
789
790
791
#endif
    end subroutine cublas_cgemm

792
793
794
795
796
    subroutine cublas_ztrmm(side, uplo, trans, diag, m, n, alpha, a, lda, b, ldb)

      use iso_c_binding

      implicit none
797
      character(1,C_CHAR),value       :: side, uplo, trans, diag
798
799
      integer(kind=C_INT)             :: m,n
      integer(kind=C_INT), intent(in) :: lda,ldb
800
      complex(kind=C_DOUBLE_COMPLEX)          :: alpha
801
802
      integer(kind=C_intptr_T)        :: a, b
#ifdef WITH_GPU_VERSION
Pavel Kus's avatar
Pavel Kus committed
803
      call cublas_ztrmm_c(cublasHandle, side, uplo, trans, diag, m, n, alpha, a, lda, b, ldb)
804
805
806
#endif
    end subroutine cublas_ztrmm

807
808
809
810
811
    subroutine cublas_ctrmm(side, uplo, trans, diag, m, n, alpha, a, lda, b, ldb)

      use iso_c_binding

      implicit none
812
      character(1,C_CHAR),value       :: side, uplo, trans, diag
813
814
      integer(kind=C_INT)             :: m,n
      integer(kind=C_INT), intent(in) :: lda,ldb
815
      complex(kind=C_FLOAT_COMPLEX)           :: alpha
816
817
      integer(kind=C_intptr_T)        :: a, b
#ifdef WITH_GPU_VERSION
Pavel Kus's avatar
Pavel Kus committed
818
      call cublas_ctrmm_c(cublasHandle, side, uplo, trans, diag, m, n, alpha, a, lda, b, ldb)
819
820
#endif
    end subroutine cublas_ctrmm
821

822
823
824
825
826
827
828
829
830
831
    subroutine cublas_dgemv(cta, m, n, alpha, a, lda, x, incx, beta, y, incy)
      use iso_c_binding

      implicit none
      character(1,C_CHAR),value       :: cta
      integer(kind=C_INT)             :: m,n
      integer(kind=C_INT), intent(in) :: lda,incx,incy
      real(kind=C_DOUBLE)             :: alpha,beta
      integer(kind=C_intptr_T)        :: a, x, y
#ifdef WITH_GPU_VERSION
Pavel Kus's avatar
Pavel Kus committed
832
      call cublas_dgemv_c(cublasHandle, cta, m, n, alpha, a, lda, x, incx, beta, y, incy)
833
834
835
836
837
838
839
840
841
842
843
844
845
#endif
    end subroutine cublas_dgemv

    subroutine cublas_sgemv(cta, m, n, alpha, a, lda, x, incx, beta, y, incy)
      use iso_c_binding

      implicit none
      character(1,C_CHAR),value       :: cta
      integer(kind=C_INT)             :: m,n
      integer(kind=C_INT), intent(in) :: lda,incx,incy
      real(kind=C_FLOAT)              :: alpha,beta
      integer(kind=C_intptr_T)        :: a, x, y
#ifdef WITH_GPU_VERSION
Pavel Kus's avatar
Pavel Kus committed
846
      call cublas_sgemv_c(cublasHandle, cta, m, n, alpha, a, lda, x, incx, beta, y, incy)
847
848
849
#endif
    end subroutine cublas_sgemv

850
851
852
853
854
855
856
    subroutine cublas_zgemv(cta, m, n, alpha, a, lda, x, incx, beta, y, incy)
      use iso_c_binding

      implicit none
      character(1,C_CHAR),value       :: cta
      integer(kind=C_INT)             :: m,n
      integer(kind=C_INT), intent(in) :: lda,incx,incy
857
      complex(kind=C_DOUBLE_COMPLEX)             :: alpha,beta
858
859
      integer(kind=C_intptr_T)        :: a, x, y
#ifdef WITH_GPU_VERSION
Pavel Kus's avatar
Pavel Kus committed
860
      call cublas_zgemv_c(cublasHandle, cta, m, n, alpha, a, lda, x, incx, beta, y, incy)
861
862
863
864
865
866
867
868
869
870
#endif
    end subroutine cublas_zgemv

    subroutine cublas_cgemv(cta, m, n, alpha, a, lda, x, incx, beta, y, incy)
      use iso_c_binding

      implicit none
      character(1,C_CHAR),value       :: cta
      integer(kind=C_INT)             :: m,n
      integer(kind=C_INT), intent(in) :: lda,incx,incy
871
      complex(kind=C_FLOAT_COMPLEX)              :: alpha,beta
872
873
      integer(kind=C_intptr_T)        :: a, x, y
#ifdef WITH_GPU_VERSION
Pavel Kus's avatar
Pavel Kus committed
874
      call cublas_cgemv_c(cublasHandle, cta, m, n, alpha, a, lda, x, incx, beta, y, incy)
875
876
877
#endif
    end subroutine cublas_cgemv

878

Pavel Kus's avatar
Pavel Kus committed
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
!     subroutine cublas_dsymv(cta, n, alpha, a, lda, x, incx, beta, y, incy)
!       use iso_c_binding
! 
!       implicit none
!       character(1,C_CHAR),value       :: cta
!       integer(kind=C_INT)             :: n
!       integer(kind=C_INT), intent(in) :: lda,incx,incy
!       real(kind=C_DOUBLE)             :: alpha,beta
!       integer(kind=C_intptr_T)        :: a, x, y
! #ifdef WITH_GPU_VERSION
!       call cublas_dsymv_c(cta, n, alpha, a, lda, x, incx, beta, y, incy)
! #endif
!     end subroutine cublas_dsymv
! 
!     subroutine cublas_ssymv(cta, n, alpha, a, lda, x, incx, beta, y, incy)
!       use iso_c_binding
! 
!       implicit none
!       character(1,C_CHAR),value       :: cta
!       integer(kind=C_INT)             :: n
!       integer(kind=C_INT), intent(in) :: lda,incx,incy
!       real(kind=C_FLOAT)              :: alpha,beta
!       integer(kind=C_intptr_T)        :: a, x, y
! #ifdef WITH_GPU_VERSION
!       call cublas_ssymv_c(cta, n, alpha, a, lda, x, incx, beta, y, incy)
! #endif
!     end subroutine cublas_ssymv
! 
!     subroutine cublas_zsymv(cta, n, alpha, a, lda, x, incx, beta, y, incy)
!       use iso_c_binding
! 
!       implicit none
!       character(1,C_CHAR),value       :: cta
!       integer(kind=C_INT)             :: n
!       integer(kind=C_INT), intent(in) :: lda,incx,incy
!       complex(kind=C_DOUBLE_COMPLEX)             :: alpha,beta
!       integer(kind=C_intptr_T)        :: a, x, y
! #ifdef WITH_GPU_VERSION
! !       call cublas_zsymv_c(cta, n, alpha, a, lda, x, incx, beta, y, incy)
! #endif
!     end subroutine cublas_zsymv
! 
!     subroutine cublas_csymv(cta, n, alpha, a, lda, x, incx, beta, y, incy)
!       use iso_c_binding
! 
!       implicit none
!       character(1,C_CHAR),value       :: cta
!       integer(kind=C_INT)             :: n
!       integer(kind=C_INT), intent(in) :: lda,incx,incy
!       complex(kind=C_FLOAT_COMPLEX)              :: alpha,beta
!       integer(kind=C_intptr_T)        :: a, x, y
! #ifdef WITH_GPU_VERSION
! !       call cublas_csymv_c(cta, n, alpha, a, lda, x, incx, beta, y, incy)
! #endif
!     end subroutine cublas_csymv
Pavel Kus's avatar
Pavel Kus committed
934
935


936
end module cuda_functions