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amg4psblas/amgprec/amg_s_parmatch_aggregator_m...

690 lines
28 KiB
Fortran

!
!
! AMG4PSBLAS version 1.0
! Algebraic Multigrid Package
! based on PSBLAS (Parallel Sparse BLAS version 3.7)
!
! (C) Copyright 2021
!
! Salvatore Filippone
! Pasqua D'Ambra
! Fabio Durastante
!
! 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 AMG4PSBLAS 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 AMG4PSBLAS 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.
!
! moved here from amg4psblas-extension
!
!
! AMG4PSBLAS Extensions
!
! (C) Copyright 2019
!
! Salvatore Filippone Cranfield University
! Pasqua D'Ambra IAC-CNR, Naples, IT
!
! 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 AMG4PSBLAS 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 AMG4PSBLAS 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.
!
!
!
!
! The aggregator object hosts the aggregation method for building
! the multilevel hierarchy. This variant is based on the hybrid method
! presented in
!
!
! sm - class(amg_T_base_smoother_type), allocatable
! The current level preconditioner (aka smoother).
! parms - type(amg_RTml_parms)
! The parameters defining the multilevel strategy.
! ac - The local part of the current-level matrix, built by
! coarsening the previous-level matrix.
! desc_ac - type(psb_desc_type).
! The communication descriptor associated to the matrix
! stored in ac.
! base_a - type(psb_Tspmat_type), pointer.
! Pointer (really a pointer!) to the local part of the current
! matrix (so we have a unified treatment of residuals).
! We need this to avoid passing explicitly the current matrix
! to the routine which applies the preconditioner.
! base_desc - type(psb_desc_type), pointer.
! Pointer to the communication descriptor associated to the
! matrix pointed by base_a.
! map - Stores the maps (restriction and prolongation) between the
! vector spaces associated to the index spaces of the previous
! and current levels.
!
! Methods:
! Most methods follow the encapsulation hierarchy: they take whatever action
! is appropriate for the current object, then call the corresponding method for
! the contained object.
! As an example: the descr() method prints out a description of the
! level. It starts by invoking the descr() method of the parms object,
! then calls the descr() method of the smoother object.
!
! descr - Prints a description of the object.
! default - Set default values
! dump - Dump to file object contents
! set - Sets various parameters; when a request is unknown
! it is passed to the smoother object for further processing.
! check - Sanity checks.
! sizeof - Total memory occupation in bytes
! get_nzeros - Number of nonzeros
!
!
module amg_s_parmatch_aggregator_mod
use amg_s_base_aggregator_mod
use amg_s_matchboxp_mod
#if defined(SERIAL_MPI)
type, extends(amg_s_base_aggregator_type) :: amg_s_parmatch_aggregator_type
end type amg_s_parmatch_aggregator_type
#else
type, extends(amg_s_base_aggregator_type) :: amg_s_parmatch_aggregator_type
integer(psb_ipk_) :: matching_alg
integer(psb_ipk_) :: n_sweeps ! When n_sweeps >1 we need an auxiliary descriptor
integer(psb_ipk_) :: orig_aggr_size
integer(psb_ipk_) :: jacobi_sweeps
real(psb_spk_), allocatable :: w(:), w_nxt(:)
type(psb_sspmat_type), allocatable :: prol, restr
type(psb_sspmat_type), allocatable :: ac, base_a, rwa
type(psb_desc_type), allocatable :: desc_ac, desc_ax, base_desc, rwdesc
logical :: reproducible_matching = .false.
logical :: need_symmetrize = .false.
logical :: unsmoothed_hierarchy = .true.
contains
procedure, pass(ag) :: bld_tprol => amg_s_parmatch_aggregator_build_tprol
procedure, pass(ag) :: mat_bld => amg_s_parmatch_aggregator_mat_bld
procedure, pass(ag) :: mat_asb => amg_s_parmatch_aggregator_mat_asb
procedure, pass(ag) :: inner_mat_asb => amg_s_parmatch_aggregator_inner_mat_asb
procedure, pass(ag) :: bld_map => amg_s_parmatch_aggregator_bld_map
procedure, pass(ag) :: csetc => amg_s_parmatch_aggr_csetc
procedure, pass(ag) :: cseti => amg_s_parmatch_aggr_cseti
procedure, pass(ag) :: default => amg_s_parmatch_aggr_set_default
procedure, pass(ag) :: sizeof => amg_s_parmatch_aggregator_sizeof
procedure, pass(ag) :: update_next => amg_s_parmatch_aggregator_update_next
procedure, pass(ag) :: bld_wnxt => amg_s_parmatch_bld_wnxt
procedure, pass(ag) :: bld_default_w => amg_s_bld_default_w
procedure, pass(ag) :: set_c_default_w => amg_s_set_prm_c_default_w
procedure, pass(ag) :: descr => amg_s_parmatch_aggregator_descr
procedure, pass(ag) :: clone => amg_s_parmatch_aggregator_clone
procedure, pass(ag) :: free => amg_s_parmatch_aggregator_free
procedure, nopass :: fmt => amg_s_parmatch_aggregator_fmt
procedure, nopass :: xt_desc => amg_s_parmatch_aggregator_xt_desc
end type amg_s_parmatch_aggregator_type
interface
subroutine amg_s_parmatch_aggregator_build_tprol(ag,parms,ag_data,&
& a,desc_a,ilaggr,nlaggr,t_prol,info)
import :: amg_s_parmatch_aggregator_type, psb_desc_type, psb_sspmat_type,&
& psb_lsspmat_type, psb_dpk_, psb_ipk_, psb_lpk_, amg_sml_parms, amg_saggr_data
implicit none
class(amg_s_parmatch_aggregator_type), target, intent(inout) :: ag
type(amg_sml_parms), intent(inout) :: parms
type(amg_saggr_data), intent(in) :: ag_data
type(psb_sspmat_type), intent(inout) :: a
type(psb_desc_type), intent(inout) :: desc_a
integer(psb_lpk_), allocatable, intent(out) :: ilaggr(:),nlaggr(:)
type(psb_lsspmat_type), intent(out) :: t_prol
integer(psb_ipk_), intent(out) :: info
end subroutine amg_s_parmatch_aggregator_build_tprol
end interface
interface
subroutine amg_s_parmatch_aggregator_mat_bld(ag,parms,a,desc_a,ilaggr,nlaggr,&
& ac,desc_ac,op_prol,op_restr,t_prol,info)
import :: amg_s_parmatch_aggregator_type, psb_desc_type, psb_sspmat_type,&
& psb_lsspmat_type, psb_dpk_, psb_ipk_, psb_lpk_, amg_sml_parms, amg_saggr_data
implicit none
class(amg_s_parmatch_aggregator_type), target, intent(inout) :: ag
type(amg_sml_parms), intent(inout) :: parms
type(psb_sspmat_type), intent(in) :: a
type(psb_desc_type), intent(inout) :: desc_a
integer(psb_lpk_), intent(inout) :: ilaggr(:), nlaggr(:)
type(psb_lsspmat_type), intent(inout) :: t_prol
type(psb_sspmat_type), intent(out) :: op_prol,ac,op_restr
type(psb_desc_type), intent(inout) :: desc_ac
integer(psb_ipk_), intent(out) :: info
end subroutine amg_s_parmatch_aggregator_mat_bld
end interface
interface
subroutine amg_s_parmatch_aggregator_mat_asb(ag,parms,a,desc_a,&
& ac,desc_ac, op_prol,op_restr,info)
import :: amg_s_parmatch_aggregator_type, psb_desc_type, psb_sspmat_type,&
& psb_lsspmat_type, psb_dpk_, psb_ipk_, psb_lpk_, amg_sml_parms, amg_saggr_data
implicit none
class(amg_s_parmatch_aggregator_type), target, intent(inout) :: ag
type(amg_sml_parms), intent(inout) :: parms
type(psb_sspmat_type), intent(in) :: a
type(psb_desc_type), intent(inout) :: desc_a
type(psb_sspmat_type), intent(inout) :: op_prol,ac,op_restr
type(psb_desc_type), intent(inout) :: desc_ac
integer(psb_ipk_), intent(out) :: info
end subroutine amg_s_parmatch_aggregator_mat_asb
end interface
interface
subroutine amg_s_parmatch_aggregator_inner_mat_asb(ag,parms,a,desc_a,&
& ac,desc_ac, op_prol,op_restr,info)
import :: amg_s_parmatch_aggregator_type, psb_desc_type, psb_sspmat_type,&
& psb_lsspmat_type, psb_dpk_, psb_ipk_, psb_lpk_, amg_sml_parms, amg_saggr_data
implicit none
class(amg_s_parmatch_aggregator_type), target, intent(inout) :: ag
type(amg_sml_parms), intent(inout) :: parms
type(psb_sspmat_type), intent(in) :: a
type(psb_desc_type), intent(in) :: desc_a
type(psb_sspmat_type), intent(inout) :: op_prol,op_restr
type(psb_sspmat_type), intent(inout) :: ac
type(psb_desc_type), intent(inout) :: desc_ac
integer(psb_ipk_), intent(out) :: info
end subroutine amg_s_parmatch_aggregator_inner_mat_asb
end interface
interface
subroutine amg_s_parmatch_spmm_bld(a,desc_a,ilaggr,nlaggr,parms,&
& ac,desc_ac,op_prol,op_restr,t_prol,info)
import :: amg_s_parmatch_aggregator_type, psb_desc_type, psb_sspmat_type,&
& psb_lsspmat_type, psb_dpk_, psb_ipk_, psb_lpk_, amg_sml_parms, amg_saggr_data
implicit none
type(psb_sspmat_type), intent(in) :: a
type(psb_desc_type), intent(inout) :: desc_a
integer(psb_lpk_), intent(inout) :: ilaggr(:), nlaggr(:)
type(amg_sml_parms), intent(inout) :: parms
type(psb_lsspmat_type), intent(inout) :: t_prol
type(psb_sspmat_type), intent(inout) :: ac, op_prol, op_restr
type(psb_desc_type), intent(out) :: desc_ac
integer(psb_ipk_), intent(out) :: info
end subroutine amg_s_parmatch_spmm_bld
end interface
interface
subroutine amg_s_parmatch_unsmth_bld(ag,a,desc_a,ilaggr,nlaggr,parms,&
& ac,desc_ac,op_prol,op_restr,t_prol,info)
import :: amg_s_parmatch_aggregator_type, psb_desc_type, psb_sspmat_type,&
& psb_lsspmat_type, psb_dpk_, psb_ipk_, psb_lpk_, amg_sml_parms, amg_saggr_data
implicit none
class(amg_s_parmatch_aggregator_type), target, intent(inout) :: ag
type(psb_sspmat_type), intent(in) :: a
type(psb_desc_type), intent(inout) :: desc_a
integer(psb_lpk_), intent(inout) :: ilaggr(:), nlaggr(:)
type(amg_sml_parms), intent(inout) :: parms
type(psb_lsspmat_type), intent(inout) :: t_prol
type(psb_sspmat_type), intent(inout) :: op_prol,ac, op_restr
type(psb_desc_type), intent(inout) :: desc_ac
integer(psb_ipk_), intent(out) :: info
end subroutine amg_s_parmatch_unsmth_bld
end interface
interface
subroutine amg_s_parmatch_smth_bld(ag,a,desc_a,ilaggr,nlaggr,parms,&
& ac,desc_ac,op_prol,op_restr,t_prol,info)
import :: amg_s_parmatch_aggregator_type, psb_desc_type, psb_sspmat_type,&
& psb_lsspmat_type, psb_dpk_, psb_ipk_, psb_lpk_, amg_sml_parms, amg_saggr_data
implicit none
class(amg_s_parmatch_aggregator_type), target, intent(inout) :: ag
type(psb_sspmat_type), intent(in) :: a
type(psb_desc_type), intent(inout) :: desc_a
integer(psb_lpk_), intent(inout) :: ilaggr(:), nlaggr(:)
type(amg_sml_parms), intent(inout) :: parms
type(psb_lsspmat_type), intent(inout) :: t_prol
type(psb_sspmat_type), intent(inout) :: op_prol,ac, op_restr
type(psb_desc_type), intent(inout) :: desc_ac
integer(psb_ipk_), intent(out) :: info
end subroutine amg_s_parmatch_smth_bld
end interface
interface
subroutine amg_s_parmatch_spmm_bld_ov(a,desc_a,ilaggr,nlaggr,parms,&
& ac,desc_ac,op_prol,op_restr,t_prol,info)
import :: amg_s_parmatch_aggregator_type, psb_desc_type, psb_sspmat_type,&
& psb_lsspmat_type, psb_dpk_, psb_ipk_, psb_lpk_, amg_sml_parms, amg_saggr_data
implicit none
type(psb_sspmat_type), intent(inout) :: a
type(psb_desc_type), intent(inout) :: desc_a
integer(psb_lpk_), intent(inout) :: ilaggr(:), nlaggr(:)
type(amg_sml_parms), intent(inout) :: parms
type(psb_lsspmat_type), intent(inout) :: t_prol
type(psb_sspmat_type), intent(inout) :: op_prol,ac, op_restr
type(psb_desc_type), intent(out) :: desc_ac
integer(psb_ipk_), intent(out) :: info
end subroutine amg_s_parmatch_spmm_bld_ov
end interface
interface
subroutine amg_s_parmatch_spmm_bld_inner(a,desc_a,ilaggr,nlaggr,parms,&
& ac,desc_ac,op_prol,op_restr,t_prol,info)
import :: amg_s_parmatch_aggregator_type, psb_desc_type, psb_sspmat_type,&
& psb_lsspmat_type, psb_dpk_, psb_ipk_, psb_lpk_, amg_sml_parms, amg_saggr_data,&
& psb_s_csr_sparse_mat, psb_ls_csr_sparse_mat
implicit none
type(psb_s_csr_sparse_mat), intent(inout) :: a
type(psb_desc_type), intent(inout) :: desc_a
integer(psb_lpk_), intent(inout) :: ilaggr(:), nlaggr(:)
type(amg_sml_parms), intent(inout) :: parms
type(psb_lsspmat_type), intent(inout) :: t_prol
type(psb_sspmat_type), intent(inout) :: op_prol,ac, op_restr
type(psb_desc_type), intent(out) :: desc_ac
integer(psb_ipk_), intent(out) :: info
end subroutine amg_s_parmatch_spmm_bld_inner
end interface
private :: is_legal_malg, is_legal_csize, is_legal_nsweeps, is_legal_nlevels
contains
subroutine amg_s_bld_default_w(ag,nr)
use psb_realloc_mod
implicit none
class(amg_s_parmatch_aggregator_type), target, intent(inout) :: ag
integer(psb_ipk_), intent(in) :: nr
integer(psb_ipk_) :: info
call psb_realloc(nr,ag%w,info)
if (info /= psb_success_) return
ag%w = done
!call ag%set_c_default_w()
end subroutine amg_s_bld_default_w
subroutine amg_s_set_prm_c_default_w(ag)
use psb_realloc_mod
use iso_c_binding
implicit none
class(amg_s_parmatch_aggregator_type), target, intent(inout) :: ag
integer(psb_ipk_) :: info
!write(0,*) 'prm_c_deafult_w '
call psb_safe_ab_cpy(ag%w,ag%w_nxt,info)
end subroutine amg_s_set_prm_c_default_w
subroutine amg_s_parmatch_bld_wnxt(ag,ilaggr,valaggr,nx)
use psb_realloc_mod
implicit none
class(amg_s_parmatch_aggregator_type), target, intent(inout) :: ag
integer(psb_lpk_), intent(in) :: ilaggr(:)
real(psb_spk_), intent(in) :: valaggr(:)
integer(psb_ipk_), intent(in) :: nx
integer(psb_ipk_) :: info,i,j
! The vector was already fixed in the call to BCMatch.
!write(0,*) 'Executing bld_wnxt ',nx
call psb_realloc(nx,ag%w_nxt,info)
end subroutine amg_s_parmatch_bld_wnxt
function amg_s_parmatch_aggregator_fmt() result(val)
implicit none
character(len=32) :: val
val = "Parallel Matching aggregation"
end function amg_s_parmatch_aggregator_fmt
function amg_s_parmatch_aggregator_xt_desc() result(val)
implicit none
logical :: val
val = .true.
end function amg_s_parmatch_aggregator_xt_desc
function amg_s_parmatch_aggregator_sizeof(ag) result(val)
use psb_realloc_mod
implicit none
class(amg_s_parmatch_aggregator_type), intent(in) :: ag
integer(psb_epk_) :: val
val = 4
val = val + psb_size(ag%w) + psb_size(ag%w_nxt)
if (allocated(ag%ac)) val = val + ag%ac%sizeof()
if (allocated(ag%base_a)) val = val + ag%base_a%sizeof()
if (allocated(ag%prol)) val = val + ag%prol%sizeof()
if (allocated(ag%restr)) val = val + ag%restr%sizeof()
if (allocated(ag%desc_ac)) val = val + ag%desc_ac%sizeof()
if (allocated(ag%base_desc)) val = val + ag%base_desc%sizeof()
if (allocated(ag%desc_ax)) val = val + ag%desc_ax%sizeof()
end function amg_s_parmatch_aggregator_sizeof
subroutine amg_s_parmatch_aggregator_descr(ag,parms,iout,info,prefix)
implicit none
class(amg_s_parmatch_aggregator_type), intent(in) :: ag
type(amg_sml_parms), intent(in) :: parms
integer(psb_ipk_), intent(in) :: iout
integer(psb_ipk_), intent(out) :: info
character(len=*), intent(in), optional :: prefix
character(1024) :: prefix_
if (present(prefix)) then
prefix_ = prefix
else
prefix_ = ""
end if
write(iout,*) trim(prefix_),' ','Parallel Matching Aggregator'
write(iout,*) trim(prefix_),' ',' Number of matching sweeps: ',ag%n_sweeps
write(iout,*) trim(prefix_),' ',' Matching algorithm : MatchBoxP (PREIS)'
write(iout,*) trim(prefix_),' ','Aggregator object type: ',ag%fmt()
call parms%mldescr(iout,info,prefix=prefix)
return
end subroutine amg_s_parmatch_aggregator_descr
function is_legal_malg(alg) result(val)
logical :: val
integer(psb_ipk_) :: alg
val = (0==alg)
end function is_legal_malg
function is_legal_csize(csize) result(val)
logical :: val
integer(psb_ipk_) :: csize
val = ((-1==csize).or.(csize >0))
end function is_legal_csize
function is_legal_nsweeps(nsw) result(val)
logical :: val
integer(psb_ipk_) :: nsw
val = (1<=nsw)
end function is_legal_nsweeps
function is_legal_nlevels(nlv) result(val)
logical :: val
integer(psb_ipk_) :: nlv
val = (1<=nlv)
end function is_legal_nlevels
subroutine amg_s_parmatch_aggregator_update_next(ag,agnext,info)
use psb_realloc_mod
implicit none
class(amg_s_parmatch_aggregator_type), target, intent(inout) :: ag
class(amg_s_base_aggregator_type), target, intent(inout) :: agnext
integer(psb_ipk_), intent(out) :: info
!
!
select type(agnext)
class is (amg_s_parmatch_aggregator_type)
if (.not.is_legal_malg(agnext%matching_alg)) &
& agnext%matching_alg = ag%matching_alg
if (.not.is_legal_nsweeps(agnext%n_sweeps))&
& agnext%n_sweeps = ag%n_sweeps
!!$ if (.not.is_legal_csize(agnext%max_csize))&
!!$ & agnext%max_csize = ag%max_csize
!!$ if (.not.is_legal_nlevels(agnext%max_nlevels))&
!!$ & agnext%max_nlevels = ag%max_nlevels
! Is this going to generate shallow copies/memory leaks/double frees?
! To be investigated further.
call psb_safe_ab_cpy(ag%w_nxt,agnext%w,info)
call agnext%set_c_default_w()
if (ag%unsmoothed_hierarchy) then
agnext%unsmoothed_hierarchy = .true.
call move_alloc(ag%rwdesc,agnext%base_desc)
call move_alloc(ag%rwa,agnext%base_a)
end if
class default
! What should we do here?
end select
info = 0
end subroutine amg_s_parmatch_aggregator_update_next
subroutine amg_s_parmatch_aggr_csetc(ag,what,val,info,idx)
Implicit None
! Arguments
class(amg_s_parmatch_aggregator_type), intent(inout) :: ag
character(len=*), intent(in) :: what
character(len=*), intent(in) :: val
integer(psb_ipk_), intent(out) :: info
integer(psb_ipk_), intent(in), optional :: idx
integer(psb_ipk_) :: err_act, iwhat
character(len=20) :: name='s_parmatch_aggr_cseti'
info = psb_success_
! For now we ignore IDX
select case(psb_toupper(trim(what)))
case('PRMC_REPRODUCIBLE_MATCHING')
select case(psb_toupper(trim(val)))
case('F','FALSE')
ag%reproducible_matching = .false.
case('REPRODUCIBLE','TRUE','T')
ag%reproducible_matching =.true.
end select
case('PRMC_NEED_SYMMETRIZE')
select case(psb_toupper(trim(val)))
case('FALSE','F')
ag%need_symmetrize = .false.
case('SYMMETRIZE','TRUE','T')
ag%need_symmetrize =.true.
end select
case('PRMC_UNSMOOTHED_HIERARCHY')
select case(psb_toupper(trim(val)))
case('F','FALSE')
ag%unsmoothed_hierarchy = .false.
case('T','TRUE')
ag%unsmoothed_hierarchy =.true.
end select
case default
! Do nothing
end select
return
end subroutine amg_s_parmatch_aggr_csetc
subroutine amg_s_parmatch_aggr_cseti(ag,what,val,info,idx)
Implicit None
! Arguments
class(amg_s_parmatch_aggregator_type), intent(inout) :: ag
character(len=*), intent(in) :: what
integer(psb_ipk_), intent(in) :: val
integer(psb_ipk_), intent(out) :: info
integer(psb_ipk_), intent(in), optional :: idx
integer(psb_ipk_) :: err_act, iwhat
character(len=20) :: name='s_parmatch_aggr_cseti'
info = psb_success_
! For now we ignore IDX
select case(psb_toupper(trim(what)))
case('PRMC_MATCH_ALG')
ag%matching_alg=val
case('PRMC_SWEEPS')
ag%n_sweeps=val
case('AGGR_SIZE')
ag%orig_aggr_size = val
ag%n_sweeps=max(1,ceiling(log(val*1.0)/log(2.0)))
case('PRMC_W_SIZE')
call ag%bld_default_w(val)
case('PRMC_REPRODUCIBLE_MATCHING')
ag%reproducible_matching = (val == 1)
case('PRMC_NEED_SYMMETRIZE')
ag%need_symmetrize = (val == 1)
case('PRMC_UNSMOOTHED_HIERARCHY')
ag%unsmoothed_hierarchy = (val == 1)
case default
! Do nothing
end select
return
end subroutine amg_s_parmatch_aggr_cseti
subroutine amg_s_parmatch_aggr_set_default(ag)
Implicit None
! Arguments
class(amg_s_parmatch_aggregator_type), intent(inout) :: ag
character(len=20) :: name='s_parmatch_aggr_set_default'
call ag%amg_s_base_aggregator_type%default()
ag%matching_alg = 0
ag%n_sweeps = 1
ag%jacobi_sweeps = 0
!!$ ag%max_nlevels = 36
!!$ ag%max_csize = -1
!
! Apparently BootCMatch works better
! by keeping all entries
!
ag%do_clean_zeros = .false.
return
end subroutine amg_s_parmatch_aggr_set_default
subroutine amg_s_parmatch_aggregator_free(ag,info)
use iso_c_binding
implicit none
class(amg_s_parmatch_aggregator_type), intent(inout) :: ag
integer(psb_ipk_), intent(out) :: info
info = 0
if ((info == 0).and.allocated(ag%w)) deallocate(ag%w,stat=info)
if ((info == 0).and.allocated(ag%w_nxt)) deallocate(ag%w_nxt,stat=info)
if ((info == 0).and.allocated(ag%prol)) then
call ag%prol%free(); deallocate(ag%prol,stat=info)
end if
if ((info == 0).and.allocated(ag%restr)) then
call ag%restr%free(); deallocate(ag%restr,stat=info)
end if
if ((info == 0).and.allocated(ag%ac)) then
call ag%ac%free(); deallocate(ag%ac,stat=info)
end if
if ((info == 0).and.allocated(ag%base_a)) then
call ag%base_a%free(); deallocate(ag%base_a,stat=info)
end if
if ((info == 0).and.allocated(ag%rwa)) then
call ag%rwa%free(); deallocate(ag%rwa,stat=info)
end if
if ((info == 0).and.allocated(ag%desc_ac)) then
call ag%desc_ac%free(info); deallocate(ag%desc_ac,stat=info)
end if
if ((info == 0).and.allocated(ag%desc_ax)) then
call ag%desc_ax%free(info); deallocate(ag%desc_ax,stat=info)
end if
if ((info == 0).and.allocated(ag%base_desc)) then
call ag%base_desc%free(info); deallocate(ag%base_desc,stat=info)
end if
if ((info == 0).and.allocated(ag%rwdesc)) then
call ag%rwdesc%free(info); deallocate(ag%rwdesc,stat=info)
end if
end subroutine amg_s_parmatch_aggregator_free
subroutine amg_s_parmatch_aggregator_clone(ag,agnext,info)
implicit none
class(amg_s_parmatch_aggregator_type), intent(inout) :: ag
class(amg_s_base_aggregator_type), allocatable, intent(inout) :: agnext
integer(psb_ipk_), intent(out) :: info
info = 0
if (allocated(agnext)) then
call agnext%free(info)
if (info == 0) deallocate(agnext,stat=info)
end if
if (info /= 0) return
allocate(agnext,source=ag,stat=info)
select type(agnext)
class is (amg_s_parmatch_aggregator_type)
call agnext%set_c_default_w()
class default
! Should never ever get here
info = -1
end select
end subroutine amg_s_parmatch_aggregator_clone
subroutine amg_s_parmatch_aggregator_bld_map(ag,desc_a,desc_ac,ilaggr,nlaggr,&
& op_restr,op_prol,map,info)
use psb_base_mod
implicit none
class(amg_s_parmatch_aggregator_type), target, intent(inout) :: ag
type(psb_desc_type), intent(in), target :: desc_a, desc_ac
integer(psb_lpk_), intent(inout) :: ilaggr(:), nlaggr(:)
type(psb_sspmat_type), intent(inout) :: op_prol, op_restr
type(psb_slinmap_type), intent(out) :: map
integer(psb_ipk_), intent(out) :: info
integer(psb_ipk_) :: err_act
character(len=20) :: name='s_parmatch_aggregator_bld_map'
call psb_erractionsave(err_act)
!
! Copy the prolongation/restriction matrices into the descriptor map.
! op_restr => PR^T i.e. restriction operator
! op_prol => PR i.e. prolongation operator
!
! For parmatch have an explicit copy of the descriptors
!
if (allocated(ag%desc_ax)) then
!!$ write(0,*) 'Building linmap with ag%desc_ax ',ag%desc_ax%get_local_rows(),ag%desc_ax%get_local_cols(),&
!!$ & desc_ac%get_local_rows(),desc_ac%get_local_cols()
map = psb_linmap(psb_map_gen_linear_,ag%desc_ax,&
& desc_ac,op_restr,op_prol,ilaggr,nlaggr)
else
map = psb_linmap(psb_map_gen_linear_,desc_a,&
& desc_ac,op_restr,op_prol,ilaggr,nlaggr)
end if
if(info /= psb_success_) then
call psb_errpush(psb_err_from_subroutine_,name,a_err='sp_Free')
goto 9999
end if
call psb_erractionrestore(err_act)
return
9999 call psb_error_handler(err_act)
return
end subroutine amg_s_parmatch_aggregator_bld_map
#endif
end module amg_s_parmatch_aggregator_mod