elpa_solve_tridi.X90 4.1 KB
Newer Older
Andreas Marek's avatar
Andreas Marek committed
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
45
46
47
48
49
50
51
52
53
54
55
56
!    This file is part of ELPA.
!
!    The ELPA library was originally created by the ELPA consortium,
!    consisting of the following organizations:
!
!    - Max Planck Computing and Data Facility (MPCDF), formerly known as
!      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 Naturwissenschaften,
!      Leipzig, Abt. Komplexe Strukutren in Biologie und Kognition,
!      and
!    - IBM Deutschland GmbH
!
!    This particular source code file contains additions, changes and
!    enhancements authored by Intel Corporation which is not part of
!    the ELPA consortium.
!
!    More information can be found here:
!    http://elpa.mpcdf.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.
!
!
! ELPA1 -- Faster replacements for ScaLAPACK symmetric eigenvalue routines
!
! Copyright of the original code rests with the authors inside the ELPA
! consortium. The copyright of any additional modifications shall rest
! with their original authors, but shall adhere to the licensing terms
! distributed along with the original code in the file "COPYING".
!
! Author: A. Marek, MPCDF



57
#include "../sanity.X90"
58

59
60
61
62
      !use elpa1_compute, solve_tridi_&
      !                   &PRECISION&
!			 &_private => solve_tridi_&
!			 &PRECISION
63
      use precision
64
65
66
67
68
69
      use elpa_type
#ifdef HAVE_DETAILED_TIMINGS
       use timings
#else
       use timings_dummy
#endif
70
71
72
      implicit none
      integer(kind=ik)         :: na, nev, ldq, nblk, matrixCols, mpi_comm_rows, mpi_comm_cols
      real(kind=REAL_DATATYPE) :: d(na), e(na)
73
74
75
!#ifdef USE_ASSUMED_SIZE
!      real(kind=REAL_DATATYPE) :: q(ldq,*)
!#else
76
      real(kind=REAL_DATATYPE) :: q(ldq,matrixCols)
77
!#endif
78
79
80

      logical, intent(in)      :: wantDebug
      logical :: success
81
82
83
84
85
86
      integer(kind=iK)            :: successInternal
      type(elpa_t)                :: elpaAPI

      call timer%start("elpa_solve_tridi_&
      &PRECISION&
      &_legacy_interface")
87
88
89

      success = .false.

90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
      if (elpa_init(20170403) /= ELPA_OK) then
        success = .false.
        error stop "ELPA API version not supported"
      endif

      elpaAPI = elpa_create(na, nev, ldq, matrixCols, nblk,  successInternal)
      if (successInternal .ne. ELPA_OK) then
        print *, "Cannot create elpa object"
        success = .false.
        stop
        return
      endif

      call elpaAPI%set_comm_rows(mpi_comm_rows)
      call elpaAPI%set_comm_cols(mpi_comm_cols)

      call elpaAPI%solve_tridi(d, e, q, successInternal)

      if (successInternal .ne. ELPA_OK) then
        print *, "Cannot run solve_tridi"
        stop
        success = .false.
        return
      else
        success =.true.
      endif
      call elpaAPI%destroy()

      call elpa_uninit()

     call timer%stop("elpa_solve_tridi_&
     &PRECISION&
     &_legacy_interface")
123
124
125
126
127
128

#undef REALCASE
#undef COMPLEXCASE
#undef DOUBLE_PRECISION
#undef SINGLE_PRECISION