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148 lines
4.5 KiB
Fortran
148 lines
4.5 KiB
Fortran
!!$
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!!$ Parallel Sparse BLAS v2.0
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!!$ (C) Copyright 2006 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_dspgetrow.f90
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! Subroutine: psb_dspgetrow
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! Gets one or more rows from a sparse matrix.
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! Parameters:
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!*****************************************************************************
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!* *
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!* Takes a specified row from matrix A and copies into NZ,IA,JA,VAL in COO *
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!* format. *
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!* *
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!*****************************************************************************
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subroutine psb_dspgetrow(irw,a,nz,ia,ja,val,info,iren,lrw)
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use psb_spmat_type
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use psb_string_mod
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use psb_serial_mod, only: psb_sp_getblk
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implicit none
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type(psb_dspmat_type), intent(in) :: a
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integer, intent(in) :: irw
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integer, intent(out) :: nz
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integer, intent(inout) :: ia(:), ja(:)
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real(kind(1.d0)), intent(inout) :: val(:)
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integer, intent(in), target, optional :: iren(:)
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integer, intent(in), optional :: lrw
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integer, intent(out) :: info
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integer :: lrw_, ierr(5), err_act
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type(psb_dspmat_type) :: b
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integer, pointer :: iren_(:)
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character(len=20) :: name, ch_err
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name='psb_sp_getrow'
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info = 0
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call psb_erractionsave(err_act)
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call psb_set_erraction(0)
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call psb_nullify_sp(b)
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if (present(lrw)) then
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lrw_ = lrw
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else
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lrw_ = irw
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endif
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if (lrw_ < irw) then
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write(0,*) 'SPGETROW input error: fixing lrw',irw,lrw_
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lrw_ = irw
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end if
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call psb_sp_all(lrw_-irw+1,lrw_-irw+1,b,info)
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if (present(iren)) then
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call psb_sp_getblk(irw,a,b,info,iren=iren,lrw=lrw_)
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else
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call psb_sp_getblk(irw,a,b,info,lrw=lrw_)
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end if
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if (info /= 0) then
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info=136
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ch_err=a%fida(1:3)
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call psb_errpush(info,name,a_err=ch_err)
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goto 9999
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end if
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if (toupper(b%fida) /= 'COO') then
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info=4010
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ch_err=a%fida(1:3)
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call psb_errpush(info,name,a_err=ch_err)
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goto 9999
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endif
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nz = b%infoa(psb_nnz_)
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if (size(ia)>= nz) then
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ia(1:nz) = b%ia1(1:nz)
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else
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info = 135
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ierr(1) = 4
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ierr(2) = size(ia)
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call psb_errpush(info,name,i_err=ierr)
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goto 9999
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endif
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if (size(ja)>= nz) then
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ja(1:nz) = b%ia2(1:nz)
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else
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info = 135
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ierr(1) = 5
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ierr(2) = size(ja)
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call psb_errpush(info,name,i_err=ierr)
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goto 9999
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endif
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if (size(val)>= nz) then
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val(1:nz) = b%aspk(1:nz)
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else
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info = 135
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ierr(1) = 6
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ierr(2) = size(val)
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call psb_errpush(info,name,i_err=ierr)
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goto 9999
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endif
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call psb_sp_free(b,info)
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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.eq.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_dspgetrow
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