!    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.

#include "../../sanity.X90"
     use elpa_type
!     use elpa1_compute
!     use elpa_utilities
     use elpa_mpi
#ifdef HAVE_DETAILED_TIMINGS
     use timings
#else
     use timings_dummy
#endif
     use precision
     implicit none

      integer(kind=ik)              :: na, lda, nblk, matrixCols, mpi_comm_rows, mpi_comm_cols
#if REALCASE == 1
!#ifdef USE_ASSUMED_SIZE
!      real(kind=REAL_DATATYPE)      :: a(lda,*)
!#else
      real(kind=REAL_DATATYPE)      :: a(lda,matrixCols)
!#endif
#endif
#if COMPLEXCASE == 1
!#ifdef USE_ASSUMED_SIZE
!      complex(kind=COMPLEX_DATATYPE)   :: a(lda,*)
!#else
      complex(kind=COMPLEX_DATATYPE)   :: a(lda,matrixCols)
!#endif
#endif
!      integer(kind=ik)              :: my_prow, my_pcol, np_rows, np_cols, mpierr
       integer(kind=ik)              :: nev  
!      integer(kind=ik)              :: l_cols, l_rows, l_col1, l_row1, l_colx, l_rowx
!      integer(kind=ik)              :: n, nc, i, info
!      integer(kind=ik)              :: lcs, lce, lrs, lre
!      integer(kind=ik)              :: tile_size, l_rows_tile, l_cols_tile

!#if REALCASE == 1
!      real(kind=REAL_DATATYPE), allocatable    :: tmp1(:), tmp2(:,:), tmatr(:,:), tmatc(:,:)
!#endif
!#if COMPLEXCASE == 1
!      complex(kind=COMPLEX_DATATYPE), allocatable    :: tmp1(:), tmp2(:,:), tmatr(:,:), tmatc(:,:)
!#endif
      logical, intent(in)           :: wantDebug
      logical                       :: success
      integer(kind=ik)                            :: successInternal
!      integer(kind=ik)              :: istat
!      character(200)                :: errorMessage

      type(elpa_t)                 :: elpaAPI

      call timer%start("elpa_cholesky_&
      &MATH_DATATYPE&
      &_&
      &PRECISION &
      ")

      success = .true.

     if (elpa_init(20170403) /= ELPA_OK) then
        success = .false.
        error stop "ELPA API version not supported"
      endif

      nev = 10
      elpaAPI = elpa_create(na, nev, lda, 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%cholesky(a, successInternal)

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

      call elpa_uninit()

      call timer%stop("elpa_cholesky_&
      &MATH_DATATYPE&
      &_&
      &PRECISION&
      ")

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