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.
115 lines
4.0 KiB
�������
115 lines
4.0 KiB
�������
!!$
|
|
!!$ Parallel Sparse BLAS version 2.2
|
|
!!$ (C) Copyright 2006/2007/2008
|
|
!!$ Salvatore Filippone University of Rome Tor Vergata
|
|
!!$ Alfredo Buttari University of Rome Tor Vergata
|
|
!!$
|
|
!!$ 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.
|
|
!!$
|
|
!!$
|
|
! File: psb_cspgtblk.f90
|
|
! Subroutine: psb_cspgtblk
|
|
! Gets one or more rows from a sparse matrix.
|
|
! Arguments:
|
|
!*****************************************************************************
|
|
!* *
|
|
!* Takes a specified row from matrix A and copies into matrix B (possibly *
|
|
!* appending to B). Output is always COO. Input might be anything, *
|
|
!* *
|
|
!*****************************************************************************
|
|
subroutine psb_cspgtblk(irw,a,b,info,append,iren,lrw,srt)
|
|
! Output is always in COO format into B, irrespective of
|
|
! the input format
|
|
use psb_spmat_type
|
|
use psb_const_mod
|
|
use psb_string_mod
|
|
use psb_serial_mod, psb_protect_name => psb_cspgtblk
|
|
implicit none
|
|
|
|
type(psb_cspmat_type), intent(in) :: a
|
|
integer, intent(in) :: irw
|
|
type(psb_cspmat_type), intent(inout) :: b
|
|
integer,intent(out) :: info
|
|
logical, intent(in), optional :: append
|
|
integer, intent(in), target, optional :: iren(:)
|
|
integer, intent(in), optional :: lrw
|
|
logical, intent(in), optional :: srt
|
|
|
|
logical :: append_,srt_
|
|
integer :: nz,nzb, lrw_, irw_
|
|
character(len=20) :: name
|
|
|
|
name='psb_spgtblk'
|
|
info = 0
|
|
|
|
irw_ = irw
|
|
if (present(lrw)) then
|
|
lrw_ = lrw
|
|
else
|
|
lrw_ = irw
|
|
endif
|
|
if (lrw_ < irw) then
|
|
write(0,*) 'SPGTBLK input error: fixing lrw',irw,lrw_
|
|
lrw_ = irw
|
|
end if
|
|
if (present(append)) then
|
|
append_ = append
|
|
else
|
|
append_ = .false.
|
|
endif
|
|
|
|
if (present(srt)) then
|
|
srt_ = srt
|
|
else
|
|
srt_ = .true.
|
|
endif
|
|
|
|
|
|
if (append_) then
|
|
nzb = b%infoa(psb_nnz_)
|
|
else
|
|
nzb = 0
|
|
b%m = 0
|
|
b%k = 0
|
|
b%descra = a%descra
|
|
endif
|
|
b%fida = 'COO'
|
|
|
|
call psb_sp_getrow(irw,a,nz,b%ia1,b%ia2,b%aspk,info,iren=iren,&
|
|
& lrw=lrw_,append=append_,nzin=nzb)
|
|
if (info == 0) call psb_ensure_size(1,b%pl,info)
|
|
if (info == 0) call psb_ensure_size(1,b%pr,info)
|
|
if (info /= 0) return
|
|
b%pl = 0
|
|
b%pr = 0
|
|
b%infoa(psb_nnz_) = nzb+nz
|
|
b%m = b%m+lrw_-irw+1
|
|
b%k = max(b%k,a%k)
|
|
if (srt_) call psb_fixcoo(b,info)
|
|
return
|
|
|
|
end subroutine psb_cspgtblk
|
|
|