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.
81 lines
3.1 KiB
Fortran
81 lines
3.1 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_s_xtr_coo_from_dia(nr,nc,ia,ja,val,nz,nrd,ncd,data,offsets,info,rdisp)
|
|
use psb_base_mod, only : psb_ipk_, psb_success_, psb_spk_, szero
|
|
|
|
implicit none
|
|
|
|
integer(psb_ipk_), intent(in) :: nr,nc, nrd,ncd, offsets(:)
|
|
integer(psb_ipk_), intent(inout) :: ia(:), ja(:),nz
|
|
real(psb_spk_), intent(inout) :: val(:)
|
|
real(psb_spk_), intent(in) :: data(nrd,ncd)
|
|
integer(psb_ipk_), intent(out) :: info
|
|
integer(psb_ipk_), intent(in), optional :: rdisp
|
|
|
|
!locals
|
|
integer(psb_ipk_) :: rdisp_, nrcmdisp, rdisp1
|
|
integer(psb_ipk_) :: i,j,ir1, ir2, ir, ic,k
|
|
logical, parameter :: debug=.false.
|
|
|
|
info = psb_success_
|
|
rdisp_ = 0
|
|
if (present(rdisp)) rdisp_ = rdisp
|
|
|
|
if (debug) write(0,*) 'Start xtr_coo_from_dia',nr,nc,nrd,ncd, rdisp_
|
|
nrcmdisp = min(nr-rdisp_,nc-rdisp_)
|
|
rdisp1 = 1-rdisp_
|
|
nz = 0
|
|
do j=1, ncd
|
|
if (offsets(j)>=0) then
|
|
ir1 = 1
|
|
! ir2 = min(nrd,nr - offsets(j) - rdisp_,nc-offsets(j)-rdisp_)
|
|
ir2 = min(nrd, nrcmdisp - offsets(j))
|
|
else
|
|
! ir1 = max(1,1-offsets(j)-rdisp_)
|
|
ir1 = max(1, rdisp1 - offsets(j))
|
|
ir2 = min(nrd, nrcmdisp)
|
|
end if
|
|
if (debug) write(0,*) ' Loop J',j,ir1,ir2, offsets(j)
|
|
do i=ir1,ir2
|
|
ir = i + rdisp_
|
|
ic = i + rdisp_ + offsets(j)
|
|
if (debug) write(0,*) ' Loop I',i,ir,ic
|
|
nz = nz + 1
|
|
ia(nz) = ir
|
|
ja(nz) = ic
|
|
val(nz) = data(i,j)
|
|
enddo
|
|
end do
|
|
|
|
end subroutine psi_s_xtr_coo_from_dia
|
|
|