Find owner of indices.
Salvatore Filippone
18 years ago
parent
e705e76888
commit
385e449b61
@ -0,0 +1,143 @@
|
|||||||
|
!!$
|
||||||
|
!!$ Parallel Sparse BLAS v2.0
|
||||||
|
!!$ (C) Copyright 2006 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.
|
||||||
|
!!$
|
||||||
|
!!$
|
||||||
|
subroutine psi_fnd_owner(nv,idx,iprc,desc,info)
|
||||||
|
use psb_descriptor_type
|
||||||
|
use psb_serial_mod
|
||||||
|
use psb_const_mod
|
||||||
|
use psb_error_mod
|
||||||
|
use psb_penv_mod
|
||||||
|
use psb_realloc_mod
|
||||||
|
use psi_mod, only : psi_idx_cnv
|
||||||
|
implicit none
|
||||||
|
integer, intent(in) :: nv
|
||||||
|
integer, intent(in) :: idx(:)
|
||||||
|
integer, allocatable, intent(out) :: iprc(:)
|
||||||
|
type(psb_desc_type), intent(in) :: desc
|
||||||
|
integer, intent(out) :: info
|
||||||
|
|
||||||
|
|
||||||
|
integer,allocatable :: hsz(:),hidx(:),helem(:),hproc(:)
|
||||||
|
|
||||||
|
integer :: i,j,err,n_row,n_col, err_act,ih,nh,icomm,hsize
|
||||||
|
integer :: ictxt,np,me
|
||||||
|
logical, parameter :: debug=.false., debugwrt=.false.
|
||||||
|
character(len=20) :: name,ch_err
|
||||||
|
|
||||||
|
info = 0
|
||||||
|
name = 'psi_fnd_owner'
|
||||||
|
call psb_erractionsave(err_act)
|
||||||
|
|
||||||
|
ictxt = psb_cd_get_context(desc)
|
||||||
|
n_row = psb_cd_get_local_rows(desc)
|
||||||
|
n_col = psb_cd_get_local_cols(desc)
|
||||||
|
call psb_get_mpicomm(ictxt,icomm )
|
||||||
|
|
||||||
|
|
||||||
|
! check on blacs grid
|
||||||
|
call psb_info(ictxt, me, np)
|
||||||
|
if (np == -1) then
|
||||||
|
info = 2010
|
||||||
|
call psb_errpush(info,name)
|
||||||
|
goto 9999
|
||||||
|
endif
|
||||||
|
|
||||||
|
if (nv < 0 ) then
|
||||||
|
info = 2010
|
||||||
|
call psb_errpush(info,name)
|
||||||
|
goto 9999
|
||||||
|
endif
|
||||||
|
|
||||||
|
if (.not.(psb_is_ok_desc(desc))) then
|
||||||
|
write(0,*) 'Invalid input descriptor in psi_fnd_owner'
|
||||||
|
end if
|
||||||
|
|
||||||
|
|
||||||
|
Allocate(hidx(np+1),hsz(np),stat=info)
|
||||||
|
if (info /= 0) then
|
||||||
|
call psb_errpush(4010,name,a_err='Allocate')
|
||||||
|
goto 9999
|
||||||
|
end if
|
||||||
|
hsz = 0
|
||||||
|
hsz(me+1) = nv
|
||||||
|
call psb_amx(ictxt,hsz,info)
|
||||||
|
hidx(1) = 1
|
||||||
|
do i=1, np
|
||||||
|
hidx(i+1) = hidx(i) + hsz(i)
|
||||||
|
end do
|
||||||
|
hsize = hidx(np+1)-1
|
||||||
|
Allocate(helem(hsize),hproc(hsize),stat=info)
|
||||||
|
if (info /= 0) then
|
||||||
|
call psb_errpush(4010,name,a_err='Allocate')
|
||||||
|
goto 9999
|
||||||
|
end if
|
||||||
|
helem(:) = 0
|
||||||
|
ih = hidx(me+1)
|
||||||
|
do i=1, hsz(me+1)
|
||||||
|
helem(ih+i-1) = idx(i)
|
||||||
|
end do
|
||||||
|
call psb_amx(ictxt,helem,info)
|
||||||
|
call psi_idx_cnv(hsize,helem,desc,info,owned=.true.)
|
||||||
|
if (info /= 0) then
|
||||||
|
call psb_errpush(4010,name,a_err='psi_idx_cnv')
|
||||||
|
goto 9999
|
||||||
|
end if
|
||||||
|
|
||||||
|
do i=1,hsize
|
||||||
|
if ((0< helem(i)).and. (helem(i) <= n_row))then
|
||||||
|
hproc(i) = me+1
|
||||||
|
else
|
||||||
|
hproc(i) = 0
|
||||||
|
end if
|
||||||
|
end do
|
||||||
|
|
||||||
|
call psb_amx(ictxt,hproc,info)
|
||||||
|
|
||||||
|
if (nv > 0) then
|
||||||
|
call psb_realloc(nv,iprc,info)
|
||||||
|
ih = hidx(me+1)
|
||||||
|
do i=1, hsz(me+1)
|
||||||
|
iprc(i) = hproc(ih+i-1) - 1
|
||||||
|
end do
|
||||||
|
end if
|
||||||
|
call psb_erractionrestore(err_act)
|
||||||
|
return
|
||||||
|
|
||||||
|
9999 continue
|
||||||
|
call psb_erractionrestore(err_act)
|
||||||
|
|
||||||
|
if (err_act.eq.act_ret) then
|
||||||
|
return
|
||||||
|
else
|
||||||
|
call psb_error(ictxt)
|
||||||
|
end if
|
||||||
|
return
|
||||||
|
|
||||||
|
end subroutine psi_fnd_owner
|
||||||
Loading…
Reference in New Issue