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88 lines
2.9 KiB
Fortran
88 lines
2.9 KiB
Fortran
! Parallel Sparse BLAS GPU plugin
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! (C) Copyright 2013
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!
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! Salvatore Filippone
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! Alessandro Fanfarillo
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!
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! Redistribution and use in source and binary forms, with or without
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! modification, are permitted provided that the following conditions
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! are met:
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! 1. Redistributions of source code must retain the above copyright
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! notice, this list of conditions and the following disclaimer.
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! 2. Redistributions in binary form must reproduce the above copyright
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! notice, this list of conditions, and the following disclaimer in the
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! documentation and/or other materials provided with the distribution.
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! 3. The name of the PSBLAS group or the names of its contributors may
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! not be used to endorse or promote products derived from this
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! software without specific written permission.
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!
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! THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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! ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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! TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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! PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE PSBLAS GROUP OR ITS CONTRIBUTORS
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! BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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! CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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! SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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! INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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! CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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! ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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! POSSIBILITY OF SUCH DAMAGE.
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!
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subroutine psb_z_dia_colsum(d,a)
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use psb_base_mod
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use psb_z_dia_mat_mod, psb_protect_name => psb_z_dia_colsum
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implicit none
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class(psb_z_dia_sparse_mat), intent(in) :: a
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complex(psb_dpk_), intent(out) :: d(:)
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integer(psb_ipk_) :: i,j,k,m,n, nnz, ir, jc, nc, ir1,ir2, nr
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logical :: tra
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integer(psb_ipk_) :: err_act, info, int_err(5)
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character(len=20) :: name='colsum'
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logical, parameter :: debug=.false.
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call psb_erractionsave(err_act)
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if (a%is_dev()) call a%sync()
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m = a%get_nrows()
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n = a%get_ncols()
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if (size(d) < n) then
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info=psb_err_input_asize_small_i_
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int_err(1) = 1
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int_err(2) = size(d)
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int_err(3) = n
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call psb_errpush(info,name,i_err=int_err)
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goto 9999
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end if
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if (a%is_unit()) then
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d = zone
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else
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d = zzero
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end if
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nr = size(a%data,1)
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nc = size(a%data,2)
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do j=1,nc
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jc = a%offset(j)
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if (jc > 0) then
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ir1 = 1
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ir2 = nr - jc
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else
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ir1 = 1 - jc
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ir2 = nr
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end if
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do i=ir1, ir2
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d(i+jc) = d(i+jc) + a%data(i,j)
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enddo
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enddo
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call psb_erractionrestore(err_act)
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return
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9999 call psb_error_handler(err_act)
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return
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end subroutine psb_z_dia_colsum
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