Line data    Source code

       1             : #if 0
       2             : !    This file is part of ELPA.
       3             : !
       4             : !    The ELPA library was originally created by the ELPA consortium,
       5             : !    consisting of the following organizations:
       6             : !
       7             : !    - Max Planck Computing and Data Facility (MPCDF), formerly known as
       8             : !      Rechenzentrum Garching der Max-Planck-Gesellschaft (RZG),
       9             : !    - Bergische Universität Wuppertal, Lehrstuhl für angewandte
      10             : !      Informatik,
      11             : !    - Technische Universität München, Lehrstuhl für Informatik mit
      12             : !      Schwerpunkt Wissenschaftliches Rechnen ,
      13             : !    - Fritz-Haber-Institut, Berlin, Abt. Theorie,
      14             : !    - Max-Plack-Institut für Mathematik in den Naturwissenschaften,
      15             : !      Leipzig, Abt. Komplexe Strukutren in Biologie und Kognition,
      16             : !      and
      17             : !    - IBM Deutschland GmbH
      18             : !
      19             : !    This particular source code file contains additions, changes and
      20             : !    enhancements authored by Intel Corporation which is not part of
      21             : !    the ELPA consortium.
      22             : !
      23             : !    More information can be found here:
      24             : !    http://elpa.mpcdf.mpg.de/
      25             : !
      26             : !    ELPA is free software: you can redistribute it and/or modify
      27             : !    it under the terms of the version 3 of the license of the
      28             : !    GNU Lesser General Public License as published by the Free
      29             : !    Software Foundation.
      30             : !
      31             : !    ELPA is distributed in the hope that it will be useful,
      32             : !    but WITHOUT ANY WARRANTY; without even the implied warranty of
      33             : !    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
      34             : !    GNU Lesser General Public License for more details.
      35             : !
      36             : !    You should have received a copy of the GNU Lesser General Public License
      37             : !    along with ELPA.  If not, see <http://www.gnu.org/licenses/>
      38             : !
      39             : !    ELPA reflects a substantial effort on the part of the original
      40             : !    ELPA consortium, and we ask you to respect the spirit of the
      41             : !    license that we chose: i.e., please contribute any changes you
      42             : !    may have back to the original ELPA library distribution, and keep
      43             : !    any derivatives of ELPA under the same license that we chose for
      44             : !    the original distribution, the GNU Lesser General Public License.
      45             : !
      46             : ! Author: Andreas Marek, MPCDF
      47             : #endif
      48         768 : function solve_elpa2_evp_&
      49             :   &MATH_DATATYPE&
      50             :   &_wrapper_&
      51             :   &PRECISION&
      52         768 :   & (na, nev, a, lda, ev, q, ldq, nblk, matrixCols, mpi_comm_rows, mpi_comm_cols, mpi_comm_all, &
      53             : #if REALCASE == 1
      54             :     THIS_REAL_ELPA_KERNEL_API, useQR, &
      55             : #endif
      56             : #if COMPLEXCASE == 1
      57             :     THIS_COMPLEX_ELPA_KERNEL_API, &
      58             : #endif
      59             :     useGPU)  result(success) bind(C,name="elpa_solve_evp_&
      60             :     &MATH_DATATYPE&
      61             :     &_2stage_&
      62             :     &PRECISION&
      63             :     &_precision")
      64             :     use, intrinsic :: iso_c_binding
      65             :     use elpa2
      66             : 
      67             :     implicit none
      68             :     integer(kind=c_int)                    :: success
      69             :     integer(kind=c_int), value, intent(in) :: na, nev, lda, ldq, nblk, matrixCols, mpi_comm_cols, mpi_comm_rows, &
      70             :                                               mpi_comm_all
      71             :     integer(kind=c_int), value, intent(in) :: useGPU
      72             : #if REALCASE == 1
      73             :     integer(kind=c_int), value, intent(in) :: THIS_REAL_ELPA_KERNEL_API, useQR
      74             : #endif
      75             : #if COMPLEXCASE == 1
      76             :     integer(kind=c_int), value, intent(in) :: THIS_COMPLEX_ELPA_KERNEL_API
      77             : #endif
      78             : 
      79             :     real(kind=C_DATATYPE_KIND)             :: ev(1:na)
      80             : #if REALCASE == 1
      81             : #ifdef USE_ASSUMED_SIZE
      82             :     real(kind=C_DATATYPE_KIND)             :: a(lda,*), q(ldq,*)
      83             : #else
      84             :     real(kind=C_DATATYPE_KIND)             :: a(1:lda,1:matrixCols), q(1:ldq,1:matrixCols)
      85             : #endif
      86             : #endif /* REALCASE */
      87             : 
      88             : #if COMPLEXCASE == 1
      89             : #ifdef USE_ASSUMED_SIZE
      90             :     complex(kind=C_DATATYPE_KIND)          :: a(lda,*), q(ldq,*)
      91             : #else
      92             :     complex(kind=C_DATATYPE_KIND)          :: a(1:lda,1:matrixCols), q(1:ldq,1:matrixCols)
      93             : #endif
      94             : #endif /* COMPLEXCASE */
      95             : 
      96             :     logical                                :: successFortran, useQRFortran
      97             : 
      98             : #if REALCASE == 1
      99         384 :     if (useQR .eq. 0) then
     100         384 :       useQRFortran =.false.
     101             :     else
     102           0 :       useQRFortran = .true.
     103             :     endif
     104             : #endif
     105             :       successFortran = elpa_solve_evp_&
     106             :       &MATH_DATATYPE&
     107             :       &_2stage_&
     108             :       &PRECISION&
     109             :       & (na, nev, a, lda, ev, q, ldq, nblk, matrixCols, mpi_comm_rows, &
     110             :          mpi_comm_cols, mpi_comm_all, &
     111             : #if REALCASE == 1
     112             :          THIS_REAL_ELPA_KERNEL_API, useQRFortran, &
     113             : #endif
     114             : #if COMPLEXCASE == 1
     115             :          THIS_COMPLEX_ELPA_KERNEL_API, &
     116             : #endif
     117         768 :          useGPU == 1)
     118             : 
     119         768 :     if (successFortran) then
     120         768 :       success = 1
     121             :     else
     122           0 :       success = 0
     123             :     endif
     124             : 
     125         768 :   end function
     126             :