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psblas3/ext/impl/psi_z_convert_dia_from_coo.f90

74 lines
3.0 KiB
Fortran

! Parallel Sparse BLAS GPU plugin
! (C) Copyright 2013
!
! Salvatore Filippone
! Alessandro Fanfarillo
!
! Redistribution and use in source and binary forms, with or without
! modification, are permitted provided that the following conditions
! are met:
! 1. Redistributions of source code must retain the above copyright
! notice, this list of conditions and the following disclaimer.
! 2. Redistributions in binary form must reproduce the above copyright
! notice, this list of conditions, and the following disclaimer in the
! documentation and/or other materials provided with the distribution.
! 3. The name of the PSBLAS group or the names of its contributors may
! not be used to endorse or promote products derived from this
! software without specific written permission.
!
! THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
! ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
! TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
! PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE PSBLAS GROUP OR ITS CONTRIBUTORS
! BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
! CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
! SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
! INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
! CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
! ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
! POSSIBILITY OF SUCH DAMAGE.
!
subroutine psi_z_convert_dia_from_coo(a,tmp,info)
use psb_base_mod
use psb_z_dia_mat_mod, psb_protect_name => psi_z_convert_dia_from_coo
use psi_ext_util_mod
implicit none
class(psb_z_dia_sparse_mat), intent(inout) :: a
class(psb_z_coo_sparse_mat), intent(in) :: tmp
integer(psb_ipk_), intent(out) :: info
!locals
integer(psb_ipk_) :: ndiag,nd
integer(psb_ipk_),allocatable :: d(:)
integer(psb_ipk_) :: k,i,j,nc,nr,nza,ir,ic
info = psb_success_
nr = tmp%get_nrows()
nc = tmp%get_ncols()
nza = tmp%get_nzeros()
! If it is sorted then we can lessen memory impact
a%psb_z_base_sparse_mat = tmp%psb_z_base_sparse_mat
ndiag = nr+nc-1
allocate(d(ndiag),stat=info)
if (info /= 0) return
call psb_realloc(ndiag,a%offset,info)
if (info /= 0) return
call psi_dia_offset_from_coo(nr,nc,nza,tmp%ia,tmp%ja, &
& nd,d,a%offset,info,initd=.true.,cleard=.false.)
call psb_realloc(nd,a%offset,info)
if (info /= 0) return
call psb_realloc(nr,nd,a%data,info)
if (info /= 0) return
a%nzeros = nza
call psi_xtr_dia_from_coo(nr,nc,nza,tmp%ia,tmp%ja,tmp%val,&
& d,nr,nd,a%data,info,initdata=.true.)
deallocate(d,stat=info)
if (info /= 0) return
end subroutine psi_z_convert_dia_from_coo