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131 lines
4.7 KiB
Fortran
131 lines
4.7 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_cspgetrow.f90
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! Subroutine: psb_cspgetrow
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! Gets one or more rows from a sparse matrix.
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! Arguments:
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! irw - integer, input The row to be extracted
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! a - type(psb_cspmat_type),input The sparse matrix
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! nz - integer, output The number of entries
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! ia(:) - integer, allocatable, inout The output row indices
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! ja(:) - integer, allocatable, inout The output col indices
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! val(:) - complex, allocatable,inout The coefficients
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! info - integer, output Error code
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! iren(:) - integer, input,optional Renumbering of indices
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! lrw - integer, input,optional Extract rows irw:lrw, default lrw=irw
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! append - logical, input,optional Should we append to already existing
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! partial output?
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! nzin - integer, input, optional If appending, how many entries were already
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! occupied.
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!
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subroutine psb_cspgetrow(irw,a,nz,ia,ja,val,info,iren,lrw,append,nzin)
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! Output is always in COO format
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use psb_spmat_type
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use psb_const_mod
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use psb_getrow_mod
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use psb_string_mod
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use psb_serial_mod, psb_protect_name => psb_cspgetrow
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implicit none
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type(psb_cspmat_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, allocatable, intent(inout) :: ia(:), ja(:)
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complex(psb_spk_), allocatable, intent(inout) :: val(:)
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integer,intent(out) :: info
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logical, intent(in), optional :: append
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integer, intent(in), optional :: iren(:)
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integer, intent(in), optional :: lrw, nzin
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logical :: append_
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integer :: nzin_, lrw_, irw_, err_act
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character(len=20) :: name, ch_err
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name='psb_spgetrow'
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info = 0
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call psb_erractionsave(err_act)
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irw_ = irw
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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,*) 'SPGTBLK input error: fixing lrw',irw,lrw_
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lrw_ = irw
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end if
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if (present(append)) then
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append_=append
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else
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append_=.false.
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endif
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if ((append_).and.(present(nzin))) then
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nzin_ = nzin
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else
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nzin_ = 0
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endif
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select case (psb_tolower(a%fida))
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case ('csr')
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call csr_getrow(irw_,a,nz,ia,ja,val,nzin_,append_,lrw_,info,iren)
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case ('coo')
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call coo_getrow(irw_,a,nz,ia,ja,val,nzin_,append_,lrw_,info,iren)
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case ('jad')
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call jad_getrow(irw_,a,nz,ia,ja,val,nzin_,append_,lrw_,info,iren)
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case default
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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 select
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if (info /= 0) goto 9999
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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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call psb_erractionsave(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_cspgetrow
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