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