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psblas3/ext/impl/psb_d_ell_csgetrow.f90

206 lines
6.2 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 psb_d_ell_csgetrow(imin,imax,a,nz,ia,ja,val,info,&
& jmin,jmax,iren,append,nzin,rscale,cscale,chksz)
use psb_base_mod
use psb_d_ell_mat_mod, psb_protect_name => psb_d_ell_csgetrow
implicit none
class(psb_d_ell_sparse_mat), intent(in) :: a
integer(psb_ipk_), intent(in) :: imin,imax
integer(psb_ipk_), intent(out) :: nz
integer(psb_ipk_), allocatable, intent(inout) :: ia(:), ja(:)
real(psb_dpk_), allocatable, intent(inout) :: val(:)
integer(psb_ipk_),intent(out) :: info
logical, intent(in), optional :: append
integer(psb_ipk_), intent(in), optional :: iren(:)
integer(psb_ipk_), intent(in), optional :: jmin,jmax, nzin
logical, intent(in), optional :: rscale,cscale,chksz
logical :: append_, rscale_, cscale_, chksz_
integer(psb_ipk_) :: nzin_, jmin_, jmax_, err_act, i
character(len=20) :: name='ell_getrow'
logical, parameter :: debug=.false.
call psb_erractionsave(err_act)
info = psb_success_
if (present(jmin)) then
jmin_ = jmin
else
jmin_ = 1
endif
if (present(jmax)) then
jmax_ = jmax
else
jmax_ = a%get_ncols()
endif
if ((imax<imin).or.(jmax_<jmin_)) then
nz = 0
return
end if
if (present(append)) then
append_=append
else
append_=.false.
endif
if ((append_).and.(present(nzin))) then
nzin_ = nzin
else
nzin_ = 0
endif
if (present(rscale)) then
rscale_ = rscale
else
rscale_ = .false.
endif
if (present(cscale)) then
cscale_ = cscale
else
cscale_ = .false.
endif
if ((rscale_.or.cscale_).and.(present(iren))) then
info = psb_err_many_optional_arg_
call psb_errpush(info,name,a_err='iren (rscale.or.cscale)')
goto 9999
end if
if (present(chksz)) then
chksz_ = chksz
else
chksz_ = .true.
endif
if (a%is_dev()) call a%sync()
call ell_getrow(imin,imax,jmin_,jmax_,a,nz,ia,ja,val,nzin_,&
& append_,chksz_,info,iren)
if (rscale_) then
do i=nzin_+1, nzin_+nz
ia(i) = ia(i) - imin + 1
end do
end if
if (cscale_) then
do i=nzin_+1, nzin_+nz
ja(i) = ja(i) - jmin_ + 1
end do
end if
if (info /= psb_success_) goto 9999
call psb_erractionrestore(err_act)
return
9999 call psb_error_handler(err_act)
return
contains
subroutine ell_getrow(imin,imax,jmin,jmax,a,nz,ia,ja,val,nzin,append,chksz,info,&
& iren)
implicit none
class(psb_d_ell_sparse_mat), intent(in) :: a
integer(psb_ipk_) :: imin,imax,jmin,jmax
integer(psb_ipk_), intent(out) :: nz
integer(psb_ipk_), allocatable, intent(inout) :: ia(:), ja(:)
real(psb_dpk_), allocatable, intent(inout) :: val(:)
integer(psb_ipk_), intent(in) :: nzin
logical, intent(in) :: append,chksz
integer(psb_ipk_) :: info
integer(psb_ipk_), optional :: iren(:)
integer(psb_ipk_) :: nzin_, nza, idx,i,j,k, nzt, irw, lrw
integer(psb_ipk_) :: debug_level, debug_unit
character(len=20) :: name='coo_getrow'
debug_unit = psb_get_debug_unit()
debug_level = psb_get_debug_level()
info = psb_success_
nza = a%get_nzeros()
irw = imin
lrw = min(imax,a%get_nrows())
if (irw<0) then
info = psb_err_pivot_too_small_
return
end if
if (append) then
nzin_ = nzin
else
nzin_ = 0
endif
nzt = sum(a%irn(irw:lrw))
nz = 0
if (chksz) then
call psb_ensure_size(nzin_+nzt,ia,info)
if (info == psb_success_) call psb_ensure_size(nzin_+nzt,ja,info)
if (info == psb_success_) call psb_ensure_size(nzin_+nzt,val,info)
end if
if (info /= psb_success_) return
if (present(iren)) then
do i=irw, lrw
do j=1,a%irn(i)
if ((jmin <= a%ja(i,j)).and.(a%ja(i,j)<=jmax)) then
nzin_ = nzin_ + 1
nz = nz + 1
val(nzin_) = a%val(i,j)
ia(nzin_) = iren(i)
ja(nzin_) = iren(a%ja(i,j))
end if
enddo
end do
else
do i=irw, lrw
do j=1,a%irn(i)
if ((jmin <= a%ja(i,j)).and.(a%ja(i,j)<=jmax)) then
nzin_ = nzin_ + 1
nz = nz + 1
val(nzin_) = a%val(i,j)
ia(nzin_) = (i)
ja(nzin_) = (a%ja(i,j))
end if
enddo
end do
end if
end subroutine ell_getrow
end subroutine psb_d_ell_csgetrow