!!$
!!$ Parallel Sparse BLAS version 3.1
!!$ (C) Copyright 2006, 2007, 2008, 2009, 2010, 2012, 2013
!!$ Salvatore Filippone University of Rome Tor Vergata
!!$ Alfredo Buttari CNRS-IRIT, Toulouse
!!$
!!$ 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
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!!$ 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_long_int_k_) :: val
val = idxmap%psb_list_map%sizeof()
if (allocated(idxmap%vgp)) &
& val = val + size(idxmap%vgp)*psb_sizeof_int
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,ictxt,vg,info)
use psb_penv_mod
use psb_error_mod
implicit none
class(psb_glist_map), intent(inout) :: idxmap
integer(psb_mpik_), intent(in) :: ictxt
integer(psb_ipk_), intent(in) :: vg(:)
integer(psb_ipk_), intent(out) :: info
! To be implemented
integer(psb_mpik_) :: iam, np
integer(psb_ipk_) :: i, n, nl
info = 0
call psb_info(ictxt,iam,np)
if (np < 0) then
write(psb_err_unit,*) 'Invalid ictxt:',ictxt
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%ictxt = ictxt
idxmap%state = psb_desc_bld_
call psb_get_mpicomm(ictxt,idxmap%mpic)
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)
use psb_penv_mod
use psb_sort_mod
implicit none
integer(psb_ipk_), 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_mpik_) :: ictxt, iam, np
integer(psb_ipk_) :: nv, i, ngp
ictxt = idxmap%get_ctxt()
call psb_info(ictxt,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
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
write(0,*) 'Error: should not be allocated on input'
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)
if (info == psb_success_) then
outmap%psb_indx_map = idxmap%psb_indx_map
outmap%pnt_h = idxmap%pnt_h
end if
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 continue
call psb_erractionrestore(err_act)
if (err_act /= psb_act_ret_) then
call psb_error()
end if
return
end subroutine glist_clone
end module psb_glist_map_mod