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92 lines
3.5 KiB
Fortran
92 lines
3.5 KiB
Fortran
!!$
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!!$ Parallel Sparse BLAS version 2.2
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!!$ (C) Copyright 2006/2007/2008
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!!$ Salvatore Filippone University of Rome Tor Vergata
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!!$ Alfredo Buttari University of Rome Tor Vergata
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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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!!$
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! File: psb_dspgtblk.f90
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! Subroutine: psb_dspgtblk
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! Gets one or more rows from a sparse matrix.
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! Arguments:
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!*****************************************************************************
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!* *
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!* Takes a specified row from matrix A and copies into matrix B (possibly *
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!* appending to B). Output is always COO. Input might be anything, *
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!* *
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!*****************************************************************************
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subroutine psb_dspshift(alpha,a,beta,b,info)
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! Output is always in COO format into B, irrespective of
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! the input format
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use psb_spmat_type
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use psb_const_mod
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use psb_string_mod
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use psb_serial_mod, psb_protect_name => psb_dspshift
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implicit none
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type(psb_dspmat_type), intent(in) :: a
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type(psb_dspmat_type), intent(out) :: b
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real(psb_dpk_), intent(in) :: alpha, beta
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integer, intent(out) :: info
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logical :: append_,srt_
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integer :: i,j, err_act
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character(len=20) :: name
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name='psb_sp_shift'
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info = 0
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call psb_erractionsave(err_act)
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call psb_sp_setbld(a,b,info)
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if (info == 0) call psb_sp_scal(b,alpha,info)
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do i=1,min(b%m,b%k)
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if (info == 0) call psb_coins(1,(/i/),(/i/),(/beta/),b,1,1,b%m,b%k,info)
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end do
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if (info == 0) call psb_spcnv(b,info,afmt=a%fida,dupl=psb_dupl_add_)
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if (info /= 0) then
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call psb_errpush(4010,name,a_err='Internal call')
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goto 9999
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end if
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call psb_erractionrestore(err_act)
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return
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9999 continue
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call psb_erractionrestore(err_act)
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if (err_act == psb_act_abort_) then
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call psb_error()
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return
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end if
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return
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end subroutine psb_dspshift
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