You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
111 lines
3.6 KiB
Fortran
111 lines
3.6 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_s_hll_get_diag(a,d,info)
|
|
|
|
use psb_base_mod
|
|
use psb_s_hll_mat_mod, psb_protect_name => psb_s_hll_get_diag
|
|
implicit none
|
|
class(psb_s_hll_sparse_mat), intent(in) :: a
|
|
real(psb_spk_), intent(out) :: d(:)
|
|
integer(psb_ipk_), intent(out) :: info
|
|
|
|
Integer(Psb_ipk_) :: err_act, mnm, i, j, k, ke, hksz, ld,ir, mxrwl
|
|
character(len=20) :: name='get_diag'
|
|
logical, parameter :: debug=.false.
|
|
|
|
info = psb_success_
|
|
call psb_erractionsave(err_act)
|
|
if (a%is_dev()) call a%sync()
|
|
|
|
mnm = min(a%get_nrows(),a%get_ncols())
|
|
ld = size(d)
|
|
if (ld< mnm) then
|
|
info=psb_err_input_asize_invalid_i_
|
|
call psb_errpush(info,name,i_err=(/2*ione,ld/))
|
|
goto 9999
|
|
end if
|
|
|
|
if (a%is_triangle().and.a%is_unit()) then
|
|
d(1:mnm) = sone
|
|
else
|
|
|
|
hksz = a%get_hksz()
|
|
j=1
|
|
do i=1,mnm,hksz
|
|
ir = min(hksz,mnm-i+1)
|
|
mxrwl = (a%hkoffs(j+1) - a%hkoffs(j))/hksz
|
|
k = a%hkoffs(j) + 1
|
|
ke = a%hkoffs(j+1)
|
|
call psb_s_hll_get_diag_inner(ir,a%irn(i:i+ir-1),&
|
|
& a%ja(k:ke),hksz,a%val(k:ke),hksz,&
|
|
& a%idiag(i:i+ir-1),d(i:i+ir-1),info)
|
|
if (info /= psb_success_) goto 9999
|
|
j = j + 1
|
|
end do
|
|
|
|
end if
|
|
|
|
do i=mnm+1,size(d)
|
|
d(i) = szero
|
|
end do
|
|
call psb_erractionrestore(err_act)
|
|
return
|
|
|
|
9999 call psb_error_handler(err_act)
|
|
return
|
|
|
|
contains
|
|
|
|
subroutine psb_s_hll_get_diag_inner(m,irn,ja,ldj,val,ldv,&
|
|
& idiag,d,info)
|
|
integer(psb_ipk_), intent(in) :: m,ldj,ldv,ja(ldj,*),irn(*), idiag(*)
|
|
real(psb_spk_), intent(in) :: val(ldv,*)
|
|
real(psb_spk_), intent(inout) :: d(*)
|
|
integer(psb_ipk_), intent(out) :: info
|
|
|
|
integer(psb_ipk_) :: i,j,k, m4, jc
|
|
|
|
info = psb_success_
|
|
|
|
do i=1,m
|
|
if (idiag(i) /= 0) then
|
|
d(i) = val(i,idiag(i))
|
|
else
|
|
d(i) = szero
|
|
end if
|
|
end do
|
|
|
|
end subroutine psb_s_hll_get_diag_inner
|
|
|
|
end subroutine psb_s_hll_get_diag
|