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.
311 lines
9.8 KiB
Fortran
311 lines
9.8 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.
|
|
!
|
|
!
|
|
!
|
|
! Purpose:
|
|
! Provide a set of subroutines to define a data distribution based on
|
|
! a graph partitioning routine from METIS. May serve as the basis
|
|
! for interfacing other graph partitioning tools.
|
|
!
|
|
! Subroutines:
|
|
!
|
|
! BUILD_MTPART(A,NPARTS): This subroutine will be called by the root
|
|
! process to build define the data distribuition mapping.
|
|
! Input parameters:
|
|
! TYPE(D_SPMAT) :: A The input matrix. The coefficients are
|
|
! ignored; only the structure is used.
|
|
! integer(psb_ipk_) :: NPARTS How many parts we are requiring to the
|
|
! partition utility
|
|
!
|
|
! DISTR_MTPART(ROOT,ICTXT): This subroutine will be called by
|
|
! all processes to distribute the information computed by the root
|
|
! process, to be used subsequently.
|
|
!
|
|
!
|
|
! PART_GRAPH : The subroutine to be passed to PSBLAS sparse library;
|
|
! uses information prepared by the previous two subroutines.
|
|
!
|
|
module psb_metispart_mod
|
|
use psb_base_mod, only : psb_ipk_, psb_lpk_, psb_mpk_, psb_epk_, &
|
|
& psb_err_unit, psb_spk_,&
|
|
& psb_lsspmat_type, psb_lcspmat_type,&
|
|
& psb_ldspmat_type, psb_lzspmat_type, &
|
|
& psb_ls_csr_sparse_mat, psb_ld_csr_sparse_mat, &
|
|
& psb_lc_csr_sparse_mat, psb_lz_csr_sparse_mat
|
|
public part_graph, build_mtpart, distr_mtpart,&
|
|
& getv_mtpart, free_part
|
|
private
|
|
integer(psb_lpk_), allocatable, save :: graph_vect(:)
|
|
|
|
interface build_mtpart
|
|
module procedure ld_mat_build_mtpart, ls_mat_build_mtpart,&
|
|
& lz_mat_build_mtpart, lc_mat_build_mtpart
|
|
end interface
|
|
|
|
interface psi_build_mtpart
|
|
subroutine psi_l_build_mtpart(n,ja,irp,nparts,vect, weights)
|
|
import :: psb_lpk_, psb_spk_
|
|
implicit none
|
|
integer(psb_lpk_), intent(in) :: n, nparts
|
|
integer(psb_lpk_), intent(in) :: ja(:), irp(:)
|
|
integer(psb_lpk_), allocatable, intent(inout) :: vect(:)
|
|
real(psb_spk_),optional, intent(in) :: weights(:)
|
|
|
|
end subroutine psi_l_build_mtpart
|
|
end interface
|
|
|
|
contains
|
|
|
|
subroutine part_graph(global_indx,n,np,pv,nv)
|
|
implicit none
|
|
integer(psb_lpk_), intent(in) :: global_indx, n
|
|
integer(psb_ipk_), intent(in) :: np
|
|
integer(psb_ipk_), intent(out) :: nv
|
|
integer(psb_ipk_), intent(out) :: pv(*)
|
|
|
|
IF (.not.allocated(graph_vect)) then
|
|
write(psb_err_unit,*) 'Fatal error in PART_GRAPH: vector GRAPH_VECT ',&
|
|
& 'not initialized'
|
|
return
|
|
endif
|
|
if ((global_indx<1).or.(global_indx > size(graph_vect))) then
|
|
write(psb_err_unit,*) 'Fatal error in PART_GRAPH: index GLOBAL_INDX ',&
|
|
& 'outside GRAPH_VECT bounds',global_indx,size(graph_vect)
|
|
return
|
|
endif
|
|
nv = 1
|
|
pv(nv) = graph_vect(global_indx)
|
|
return
|
|
end subroutine part_graph
|
|
|
|
|
|
subroutine distr_mtpart(root, ictxt)
|
|
use psb_base_mod
|
|
implicit none
|
|
integer(psb_ipk_) :: root, ictxt
|
|
integer(psb_ipk_) :: me, np, info
|
|
integer(psb_lpk_) :: n
|
|
|
|
call psb_info(ictxt,me,np)
|
|
|
|
if (.not.((root>=0).and.(root<np))) then
|
|
write(psb_err_unit,*) 'Fatal error in DISTR_MTPART: invalid ROOT ',&
|
|
& 'coordinates '
|
|
call psb_abort(ictxt)
|
|
return
|
|
endif
|
|
|
|
if (me == root) then
|
|
if (.not.allocated(graph_vect)) then
|
|
write(psb_err_unit,*) 'Fatal error in DISTR_MTPART: vector GRAPH_VECT ',&
|
|
& 'not initialized'
|
|
call psb_abort(ictxt)
|
|
return
|
|
endif
|
|
n = size(graph_vect)
|
|
call psb_bcast(ictxt,n,root=root)
|
|
else
|
|
call psb_bcast(ictxt,n,root=root)
|
|
|
|
allocate(graph_vect(n),stat=info)
|
|
if (info /= psb_success_) then
|
|
write(psb_err_unit,*) 'Fatal error in DISTR_MTPART: memory allocation ',&
|
|
& ' failure.'
|
|
return
|
|
endif
|
|
endif
|
|
call psb_bcast(ictxt,graph_vect(1:n),root=root)
|
|
|
|
return
|
|
|
|
end subroutine distr_mtpart
|
|
|
|
subroutine getv_mtpart(ivg)
|
|
implicit none
|
|
integer(psb_ipk_), allocatable, intent(out) :: ivg(:)
|
|
if (allocated(graph_vect)) then
|
|
allocate(ivg(size(graph_vect)))
|
|
ivg(:) = graph_vect(:)
|
|
end if
|
|
end subroutine getv_mtpart
|
|
|
|
|
|
subroutine ld_mat_build_mtpart(a,nparts,weights)
|
|
use psb_base_mod
|
|
implicit none
|
|
type(psb_ldspmat_type), intent(in) :: a
|
|
integer(psb_lpk_) :: nparts
|
|
real(psb_dpk_), optional :: weights(:)
|
|
|
|
|
|
select type (aa=>a%a)
|
|
type is (psb_ld_csr_sparse_mat)
|
|
call ld_csr_build_mtpart(aa,nparts,weights)
|
|
class default
|
|
write(psb_err_unit,*) 'Sorry, right now we only take CSR input!'
|
|
end select
|
|
|
|
end subroutine ld_mat_build_mtpart
|
|
|
|
subroutine ld_csr_build_mtpart(a,nparts,weights)
|
|
use psb_base_mod
|
|
implicit none
|
|
type(psb_ld_csr_sparse_mat), intent(in) :: a
|
|
integer(psb_lpk_) :: nparts
|
|
real(psb_dpk_), optional :: weights(:)
|
|
real(psb_spk_), allocatable :: wgh_(:)
|
|
|
|
|
|
if (present(weights)) then
|
|
if (size(weights)==nparts) then
|
|
wgh_ = weights
|
|
end if
|
|
end if
|
|
if (allocated(wgh_)) then
|
|
call psi_build_mtpart(a%get_nrows(),a%ja,a%irp,nparts,graph_vect,wgh_)
|
|
else
|
|
call psi_build_mtpart(a%get_nrows(),a%ja,a%irp,nparts,graph_vect)
|
|
end if
|
|
|
|
end subroutine ld_csr_build_mtpart
|
|
|
|
subroutine lz_mat_build_mtpart(a,nparts,weights)
|
|
use psb_base_mod
|
|
implicit none
|
|
type(psb_lzspmat_type), intent(in) :: a
|
|
integer(psb_lpk_) :: nparts
|
|
real(psb_dpk_), optional :: weights(:)
|
|
|
|
|
|
select type (aa=>a%a)
|
|
type is (psb_lz_csr_sparse_mat)
|
|
call lz_csr_build_mtpart(aa,nparts,weights)
|
|
class default
|
|
write(psb_err_unit,*) 'Sorry, right now we only take CSR input!'
|
|
end select
|
|
|
|
end subroutine lz_mat_build_mtpart
|
|
|
|
subroutine lz_csr_build_mtpart(a,nparts,weights)
|
|
use psb_base_mod
|
|
implicit none
|
|
type(psb_lz_csr_sparse_mat), intent(in) :: a
|
|
integer(psb_lpk_) :: nparts
|
|
real(psb_dpk_), optional :: weights(:)
|
|
real(psb_spk_), allocatable :: wgh_(:)
|
|
|
|
|
|
if (present(weights)) then
|
|
if (size(weights)==nparts) then
|
|
wgh_ = weights
|
|
end if
|
|
end if
|
|
if (allocated(wgh_)) then
|
|
call psi_build_mtpart(a%get_nrows(),a%ja,a%irp,nparts,graph_vect,wgh_)
|
|
else
|
|
call psi_build_mtpart(a%get_nrows(),a%ja,a%irp,nparts,graph_vect)
|
|
end if
|
|
|
|
end subroutine lz_csr_build_mtpart
|
|
|
|
subroutine ls_mat_build_mtpart(a,nparts,weights)
|
|
use psb_base_mod
|
|
implicit none
|
|
type(psb_lsspmat_type), intent(in) :: a
|
|
integer(psb_lpk_) :: nparts
|
|
real(psb_spk_), optional :: weights(:)
|
|
|
|
|
|
select type (aa=>a%a)
|
|
type is (psb_ls_csr_sparse_mat)
|
|
call ls_csr_build_mtpart(aa,nparts,weights)
|
|
class default
|
|
write(psb_err_unit,*) 'Sorry, right now we only take CSR input!'
|
|
end select
|
|
|
|
end subroutine ls_mat_build_mtpart
|
|
|
|
subroutine lc_mat_build_mtpart(a,nparts,weights)
|
|
use psb_base_mod
|
|
implicit none
|
|
type(psb_lcspmat_type), intent(in) :: a
|
|
integer(psb_lpk_) :: nparts
|
|
real(psb_spk_), optional :: weights(:)
|
|
|
|
|
|
select type (aa=>a%a)
|
|
type is (psb_lc_csr_sparse_mat)
|
|
call lc_csr_build_mtpart(aa,nparts,weights)
|
|
class default
|
|
write(psb_err_unit,*) 'Sorry, right now we only take CSR input!'
|
|
end select
|
|
|
|
end subroutine lc_mat_build_mtpart
|
|
|
|
subroutine lc_csr_build_mtpart(a,nparts,weights)
|
|
use psb_base_mod
|
|
implicit none
|
|
type(psb_lc_csr_sparse_mat), intent(in) :: a
|
|
integer(psb_lpk_) :: nparts
|
|
real(psb_spk_), optional :: weights(:)
|
|
|
|
|
|
call psi_build_mtpart(a%get_nrows(),a%ja,a%irp,nparts,graph_vect,weights)
|
|
|
|
end subroutine lc_csr_build_mtpart
|
|
|
|
subroutine ls_csr_build_mtpart(a,nparts,weights)
|
|
use psb_base_mod
|
|
implicit none
|
|
type(psb_ls_csr_sparse_mat), intent(in) :: a
|
|
integer(psb_lpk_) :: nparts
|
|
real(psb_spk_), optional :: weights(:)
|
|
|
|
|
|
call psi_build_mtpart(a%get_nrows(),a%ja,a%irp,nparts,graph_vect,weights)
|
|
|
|
end subroutine ls_csr_build_mtpart
|
|
|
|
!
|
|
! WARNING: called IRET otherwise Intel compiler complains,
|
|
! methinks it's a compiler bug, will need to report.
|
|
!
|
|
subroutine free_part(iret)
|
|
implicit none
|
|
integer(psb_ipk_), intent(out) :: iret
|
|
|
|
deallocate(graph_vect,stat=iret)
|
|
return
|
|
end subroutine free_part
|
|
|
|
end module psb_metispart_mod
|
|
|