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psblas3/base/modules/desc/psb_glist_map_mod.F90

266 lines
7.6 KiB
Fortran

!
! Parallel Sparse BLAS version 3.5
! (C) Copyright 2006-2018
! Salvatore Filippone
! Alfredo Buttari
!
! 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.
!
!
!
!
! package: psb_glist_map_mod
! Defines the GLIST_MAP type.
!
! This is almost identical to the LIST_MAP type, but it has an additional
! vector of size GLOB_ROWS giving, for each index, the owning process.
! This implies that:
! 1. We have room for such an additional vector;
! 2. There are no overlap (only one process owns a given index).
!
!
module psb_glist_map_mod
use psb_const_mod
use psb_desc_const_mod
use psb_list_map_mod
type, extends(psb_list_map) :: psb_glist_map
integer(psb_ipk_), allocatable :: vgp(:)
contains
procedure, pass(idxmap) :: glist_map_init => glist_initvg
procedure, pass(idxmap) :: sizeof => glist_sizeof
procedure, pass(idxmap) :: free => glist_free
procedure, pass(idxmap) :: clone => glist_clone
procedure, nopass :: get_fmt => glist_get_fmt
procedure, pass(idxmap) :: fnd_owner => glist_fnd_owner
end type psb_glist_map
private :: glist_initvg, glist_sizeof, glist_free, glist_get_fmt
contains
function glist_sizeof(idxmap) result(val)
implicit none
class(psb_glist_map), intent(in) :: idxmap
integer(psb_epk_) :: val
val = idxmap%psb_list_map%sizeof()
if (allocated(idxmap%vgp)) &
& val = val + size(idxmap%vgp)*psb_sizeof_ip
end function glist_sizeof
subroutine glist_free(idxmap)
implicit none
class(psb_glist_map), intent(inout) :: idxmap
if (allocated(idxmap%vgp)) &
& deallocate(idxmap%vgp)
call idxmap%psb_list_map%free()
end subroutine glist_free
subroutine glist_initvg(idxmap,ctxt,vg,info)
use psb_penv_mod
use psb_error_mod
implicit none
class(psb_glist_map), intent(inout) :: idxmap
type(psb_ctxt_type), intent(in) :: ctxt
integer(psb_ipk_), intent(in) :: vg(:)
integer(psb_ipk_), intent(out) :: info
! To be implemented
integer(psb_ipk_) :: iam, np
integer(psb_ipk_) :: nl
integer(psb_lpk_) :: i, n
info = 0
call psb_info(ctxt,iam,np)
if (np < 0) then
write(psb_err_unit,*) 'Invalid ctxt'
info = -1
return
end if
n = size(vg)
idxmap%global_rows = n
idxmap%global_cols = n
allocate(idxmap%loc_to_glob(n),idxmap%glob_to_loc(n),&
& idxmap%vgp(n),stat=info)
if (info /= 0) then
info = -2
return
end if
idxmap%ctxt = ctxt
idxmap%state = psb_desc_bld_
idxmap%mpic = psb_get_mpi_comm(ctxt)
nl = 0
do i=1, n
if ((vg(i) > np-1).or.(vg(i) < 0)) then
info=psb_err_partfunc_wrong_pid_
exit
end if
idxmap%vgp(i) = vg(i)
if (vg(i) == iam) then
! this point belongs to me
nl = nl + 1
idxmap%glob_to_loc(i) = nl
idxmap%loc_to_glob(nl) = i
else
idxmap%glob_to_loc(i) = -(np+vg(i)+1)
end if
end do
call idxmap%set_lr(nl)
call idxmap%set_lc(nl)
end subroutine glist_initvg
subroutine glist_fnd_owner(idx,iprc,idxmap,info,adj)
use psb_penv_mod
use psb_sort_mod
use psb_realloc_mod
implicit none
integer(psb_lpk_), intent(in) :: idx(:)
integer(psb_ipk_), allocatable, intent(out) :: iprc(:)
class(psb_glist_map), intent(in) :: idxmap
integer(psb_ipk_), intent(out) :: info
integer(psb_ipk_), optional, allocatable, intent(out) :: adj(:)
type(psb_ctxt_type) :: ctxt
integer(psb_mpk_) :: iam, np
integer(psb_ipk_) :: nadj
integer(psb_lpk_) :: nv, i, ngp
ctxt = idxmap%get_ctxt()
call psb_info(ctxt,iam,np)
nv = size(idx)
allocate(iprc(nv),stat=info)
if (info /= 0) then
write(0,*) 'Memory allocation failure in repl_map_fnd-owner'
return
end if
ngp = size(idxmap%vgp)
do i=1, nv
if ((1<=idx(i)).and.(idx(i)<=ngp)) then
iprc(i) = idxmap%vgp(idx(i))
else
iprc(i) = -1
end if
end do
if (present(adj)) then
adj = iprc
call psb_msort_unique(adj,nadj)
call psb_realloc(nadj,adj,info)
end if
end subroutine glist_fnd_owner
function glist_get_fmt() result(res)
implicit none
character(len=5) :: res
res = 'GLIST'
end function glist_get_fmt
subroutine glist_clone(idxmap,outmap,info)
use psb_penv_mod
use psb_error_mod
use psb_realloc_mod
implicit none
class(psb_glist_map), intent(inout) :: idxmap
class(psb_indx_map), allocatable, intent(out) :: outmap
integer(psb_ipk_), intent(out) :: info
integer(psb_ipk_) :: err_act
character(len=20) :: name='glist_clone'
logical, parameter :: debug=.false.
info = psb_success_
call psb_get_erraction(err_act)
if (allocated(outmap)) then
call outmap%free()
deallocate(outmap,stat=info)
end if
if (info /= 0) then
write(0,*) 'Error: could not cleanup output'
info = -87
goto 9999
end if
allocate(psb_glist_map :: outmap, stat=info)
if (info /= psb_success_) then
info = psb_err_alloc_dealloc_
call psb_errpush(info,name)
goto 9999
end if
select type (outmap)
type is (psb_glist_map)
call idxmap%psb_indx_map%cpy(outmap%psb_indx_map,info)
if (info == psb_success_) outmap%pnt_h = idxmap%pnt_h
if (info == psb_success_)&
& call psb_safe_ab_cpy(idxmap%loc_to_glob,outmap%loc_to_glob,info)
if (info == psb_success_)&
& call psb_safe_ab_cpy(idxmap%glob_to_loc,outmap%glob_to_loc,info)
if (info == psb_success_)&
& call psb_safe_ab_cpy(idxmap%vgp,outmap%vgp,info)
class default
! This should be impossible
info = -1
end select
if (info /= psb_success_) then
info = psb_err_from_subroutine_
call psb_errpush(info,name)
goto 9999
end if
call psb_erractionrestore(err_act)
return
9999 call psb_error_handler(err_act)
return
end subroutine glist_clone
end module psb_glist_map_mod