!
!
! 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.
!
!
! File: amg_c_onelev_mod.f90
!
! Module: amg_c_onelev_mod
!
! This module defines:
! - the amg_c_onelev_type data structure containing one level
! of a multilevel preconditioner and related
! data structures;
!
! It contains routines for
! - Building and applying;
! - checking if the preconditioner is correctly defined;
! - printing a description of the preconditioner;
! - deallocating the preconditioner data structure.
!
module amg_c_onelev_mod
use amg_base_prec_type
use amg_c_base_smoother_mod
use amg_c_dec_aggregator_mod
use psb_base_mod, only : psb_cspmat_type, psb_c_vect_type, &
& psb_c_base_vect_type, psb_lcspmat_type, psb_clinmap_type, psb_spk_, &
& psb_ipk_, psb_epk_, psb_lpk_, psb_desc_type, psb_i_base_vect_type, &
& psb_erractionsave, psb_error_handler
!
!
! Type: amg_conelev_type.
!
! It is the data type containing the necessary items for the current
! level (essentially, the smoother, the current-level matrix
! and the restriction and prolongation operators).
!
! type amg_conelev_type
! class(amg_c_base_smoother_type), allocatable :: sm, sm2a
! class(amg_c_base_smoother_type), pointer :: sm2 => null()
! class(amg_cmlprec_wrk_type), allocatable :: wrk
! class(amg_c_base_aggregator_type), allocatable :: aggr
! type(amg_sml_parms) :: parms
! type(psb_cspmat_type) :: ac
! type(psb_cesc_type) :: desc_ac
! type(psb_cspmat_type), pointer :: base_a => null()
! type(psb_desc_type), pointer :: base_desc => null()
! type(psb_clinmap_type) :: map
! end type amg_conelev_type
!
! Note that s denotes the kind of the real data type to be chosen
! according to single/double precision version of AMG4PSBLAS.
!
! sm,sm2a - class(amg_c_base_smoother_type), allocatable
! The current level pre- and post-smooother.
! sm2 - class(amg_c_base_smoother_type), pointer
! The current level post-smooother; if sm2a is allocated
! explicitly, then sm2 => sm2a, otherwise sm2 => sm.
! wrk - class(amg_cmlprec_wrk_type), allocatable
! Workspace for application of preconditioner; may be
! pre-allocated to save time in the application within a
! Krylov solver.
! aggr - class(amg_c_base_aggregator_type), allocatable
! The aggregator object: holds the algorithmic choices and
! (possibly) additional data for building the aggregation.
! parms - type(amg_sml_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_cspmat_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
! get_wrksz - How many workspace vector does apply_vect need
! allocate_wrk - Allocate auxiliary workspace
! free_wrk - Free auxiliary workspace
! bld_tprol - Invoke the aggr method to build the tentative prolongator
! mat_asb - Build the final (possibly smoothed) prolongator and coarse matrix.
!
!
type amg_cmlprec_wrk_type
complex(psb_spk_), allocatable :: tx(:), ty(:), x2l(:), y2l(:)
type(psb_c_vect_type) :: vtx, vty, vx2l, vy2l
type(psb_c_vect_type), allocatable :: wv(:)
contains
procedure, pass(wk) :: alloc => c_wrk_alloc
procedure, pass(wk) :: free => c_wrk_free
procedure, pass(wk) :: clone => c_wrk_clone
procedure, pass(wk) :: move_alloc => c_wrk_move_alloc
procedure, pass(wk) :: cnv => c_wrk_cnv
procedure, pass(wk) :: sizeof => c_wrk_sizeof
end type amg_cmlprec_wrk_type
private :: c_wrk_alloc, c_wrk_free, &
& c_wrk_clone, c_wrk_move_alloc, c_wrk_cnv, c_wrk_sizeof
type amg_c_remap_data_type
type(psb_cspmat_type) :: ac_pre_remap
type(psb_desc_type) :: desc_ac_pre_remap
integer(psb_ipk_) :: idest
integer(psb_ipk_), allocatable :: isrc(:), nrsrc(:), naggr(:)
contains
procedure, pass(rmp) :: clone => c_remap_data_clone
end type amg_c_remap_data_type
type amg_c_onelev_type
class(amg_c_base_smoother_type), allocatable :: sm, sm2a
class(amg_c_base_smoother_type), pointer :: sm2 => null()
class(amg_cmlprec_wrk_type), allocatable :: wrk
class(amg_c_base_aggregator_type), allocatable :: aggr
type(amg_sml_parms) :: parms
type(psb_cspmat_type) :: ac
integer(psb_ipk_) :: ac_nz_loc
integer(psb_lpk_) :: ac_nz_tot
type(psb_desc_type) :: desc_ac
type(psb_cspmat_type), pointer :: base_a => null()
type(psb_desc_type), pointer :: base_desc => null()
type(psb_lcspmat_type) :: tprol
type(psb_clinmap_type) :: linmap
type(amg_c_remap_data_type) :: remap_data
real(psb_spk_) :: szratio
contains
procedure, pass(lv) :: bld_tprol => c_base_onelev_bld_tprol
procedure, pass(lv) :: mat_asb => amg_c_base_onelev_mat_asb
procedure, pass(lv) :: update_aggr => c_base_onelev_update_aggr
procedure, pass(lv) :: bld => amg_c_base_onelev_build
procedure, pass(lv) :: clone => c_base_onelev_clone
procedure, pass(lv) :: cnv => amg_c_base_onelev_cnv
procedure, pass(lv) :: descr => amg_c_base_onelev_descr
procedure, pass(lv) :: default => c_base_onelev_default
procedure, pass(lv) :: free => amg_c_base_onelev_free
procedure, pass(lv) :: nullify => c_base_onelev_nullify
procedure, pass(lv) :: check => amg_c_base_onelev_check
procedure, pass(lv) :: dump => amg_c_base_onelev_dump
procedure, pass(lv) :: cseti => amg_c_base_onelev_cseti
procedure, pass(lv) :: csetr => amg_c_base_onelev_csetr
procedure, pass(lv) :: csetc => amg_c_base_onelev_csetc
procedure, pass(lv) :: setsm => amg_c_base_onelev_setsm
procedure, pass(lv) :: setsv => amg_c_base_onelev_setsv
procedure, pass(lv) :: setag => amg_c_base_onelev_setag
generic, public :: set => cseti, csetr, csetc, setsm, setsv, setag
procedure, pass(lv) :: sizeof => c_base_onelev_sizeof
procedure, pass(lv) :: get_nzeros => c_base_onelev_get_nzeros
procedure, pass(lv) :: get_wrksz => c_base_onelev_get_wrksize
procedure, pass(lv) :: allocate_wrk => c_base_onelev_allocate_wrk
procedure, pass(lv) :: free_wrk => c_base_onelev_free_wrk
procedure, nopass :: stringval => amg_stringval
procedure, pass(lv) :: move_alloc => c_base_onelev_move_alloc
procedure, pass(lv) :: map_rstr_a => amg_c_base_onelev_map_rstr_a
procedure, pass(lv) :: map_prol_a => amg_c_base_onelev_map_prol_a
procedure, pass(lv) :: map_rstr_v => amg_c_base_onelev_map_rstr_v
procedure, pass(lv) :: map_prol_v => amg_c_base_onelev_map_prol_v
generic, public :: map_rstr => map_rstr_a, map_rstr_v
generic, public :: map_prol => map_prol_a, map_prol_v
end type amg_c_onelev_type
type amg_c_onelev_node
type(amg_c_onelev_type) :: item
type(amg_c_onelev_node), pointer :: prev=>null(), next=>null()
end type amg_c_onelev_node
private :: c_base_onelev_default, c_base_onelev_sizeof, &
& c_base_onelev_nullify, c_base_onelev_get_nzeros, &
& c_base_onelev_clone, c_base_onelev_move_alloc, &
& c_base_onelev_get_wrksize, c_base_onelev_allocate_wrk, &
& c_base_onelev_free_wrk
interface
subroutine amg_c_base_onelev_mat_asb(lv,a,desc_a,ilaggr,nlaggr,t_prol,info)
import :: psb_cspmat_type, psb_desc_type, psb_spk_, psb_ipk_, psb_lcspmat_type, psb_lpk_
import :: amg_c_onelev_type
implicit none
class(amg_c_onelev_type), intent(inout), target :: lv
type(psb_cspmat_type), intent(in) :: a
type(psb_desc_type), intent(inout) :: desc_a
integer(psb_lpk_), intent(inout) :: ilaggr(:),nlaggr(:)
type(psb_lcspmat_type), intent(inout) :: t_prol
integer(psb_ipk_), intent(out) :: info
end subroutine amg_c_base_onelev_mat_asb
end interface
interface
subroutine amg_c_base_onelev_build(lv,info,amold,vmold,imold,ilv)
import :: psb_c_base_sparse_mat, psb_c_base_vect_type, &
& psb_i_base_vect_type, psb_spk_, amg_c_onelev_type, &
& psb_ipk_, psb_epk_, psb_desc_type
implicit none
class(amg_c_onelev_type), target, intent(inout) :: lv
integer(psb_ipk_), intent(out) :: info
class(psb_c_base_sparse_mat), intent(in), optional :: amold
class(psb_c_base_vect_type), intent(in), optional :: vmold
class(psb_i_base_vect_type), intent(in), optional :: imold
integer(psb_ipk_), intent(in), optional :: ilv
end subroutine amg_c_base_onelev_build
end interface
interface
subroutine amg_c_base_onelev_descr(lv,il,nl,ilmin,info,iout, verbosity)
import :: psb_cspmat_type, psb_c_vect_type, psb_c_base_vect_type, &
& psb_clinmap_type, psb_spk_, amg_c_onelev_type, &
& psb_ipk_, psb_epk_, psb_desc_type
Implicit None
! Arguments
class(amg_c_onelev_type), intent(in) :: lv
integer(psb_ipk_), intent(in) :: il,nl,ilmin
integer(psb_ipk_), intent(out) :: info
integer(psb_ipk_), intent(in), optional :: iout
integer(psb_ipk_), intent(in), optional :: verbosity
end subroutine amg_c_base_onelev_descr
end interface
interface
subroutine amg_c_base_onelev_cnv(lv,info,amold,vmold,imold)
import :: amg_c_onelev_type, psb_c_base_vect_type, psb_spk_, &
& psb_c_base_sparse_mat, psb_ipk_, psb_i_base_vect_type
! Arguments
class(amg_c_onelev_type), intent(inout) :: lv
integer(psb_ipk_), intent(out) :: info
class(psb_c_base_sparse_mat), intent(in), optional :: amold
class(psb_c_base_vect_type), intent(in), optional :: vmold
class(psb_i_base_vect_type), intent(in), optional :: imold
end subroutine amg_c_base_onelev_cnv
end interface
interface
subroutine amg_c_base_onelev_free(lv,info)
import :: psb_cspmat_type, psb_c_vect_type, psb_c_base_vect_type, &
& psb_clinmap_type, psb_spk_, amg_c_onelev_type, &
& psb_ipk_, psb_epk_, psb_desc_type
implicit none
class(amg_c_onelev_type), intent(inout) :: lv
integer(psb_ipk_), intent(out) :: info
end subroutine amg_c_base_onelev_free
end interface
interface
subroutine amg_c_base_onelev_check(lv,info)
import :: psb_cspmat_type, psb_c_vect_type, psb_c_base_vect_type, &
& psb_clinmap_type, psb_spk_, amg_c_onelev_type, &
& psb_ipk_, psb_epk_, psb_desc_type
Implicit None
! Arguments
class(amg_c_onelev_type), intent(inout) :: lv
integer(psb_ipk_), intent(out) :: info
end subroutine amg_c_base_onelev_check
end interface
interface
subroutine amg_c_base_onelev_setsm(lv,val,info,pos)
import :: psb_spk_, amg_c_onelev_type, amg_c_base_smoother_type, &
& psb_ipk_, psb_epk_, psb_desc_type
Implicit None
! Arguments
class(amg_c_onelev_type), target, intent(inout) :: lv
class(amg_c_base_smoother_type), intent(in) :: val
integer(psb_ipk_), intent(out) :: info
character(len=*), optional, intent(in) :: pos
end subroutine amg_c_base_onelev_setsm
end interface
interface
subroutine amg_c_base_onelev_setsv(lv,val,info,pos)
import :: psb_spk_, amg_c_onelev_type, amg_c_base_solver_type, &
& psb_ipk_, psb_epk_, psb_desc_type
Implicit None
! Arguments
class(amg_c_onelev_type), target, intent(inout) :: lv
class(amg_c_base_solver_type), intent(in) :: val
integer(psb_ipk_), intent(out) :: info
character(len=*), optional, intent(in) :: pos
end subroutine amg_c_base_onelev_setsv
end interface
interface
subroutine amg_c_base_onelev_setag(lv,val,info,pos)
import :: psb_spk_, amg_c_onelev_type, amg_c_base_aggregator_type, &
& psb_ipk_, psb_epk_, psb_desc_type
Implicit None
! Arguments
class(amg_c_onelev_type), target, intent(inout) :: lv
class(amg_c_base_aggregator_type), intent(in) :: val
integer(psb_ipk_), intent(out) :: info
character(len=*), optional, intent(in) :: pos
end subroutine amg_c_base_onelev_setag
end interface
interface
subroutine amg_c_base_onelev_cseti(lv,what,val,info,pos,idx)
import :: psb_cspmat_type, psb_c_vect_type, psb_c_base_vect_type, &
& psb_clinmap_type, psb_spk_, amg_c_onelev_type, &
& psb_ipk_, psb_epk_, psb_desc_type
Implicit None
! Arguments
class(amg_c_onelev_type), intent(inout) :: lv
character(len=*), intent(in) :: what
integer(psb_ipk_), intent(in) :: val
integer(psb_ipk_), intent(out) :: info
character(len=*), optional, intent(in) :: pos
integer(psb_ipk_), intent(in), optional :: idx
end subroutine amg_c_base_onelev_cseti
end interface
interface
subroutine amg_c_base_onelev_csetc(lv,what,val,info,pos,idx)
import :: psb_cspmat_type, psb_c_vect_type, psb_c_base_vect_type, &
& psb_clinmap_type, psb_spk_, amg_c_onelev_type, &
& psb_ipk_, psb_epk_, psb_desc_type
Implicit None
! Arguments
class(amg_c_onelev_type), intent(inout) :: lv
character(len=*), intent(in) :: what
character(len=*), intent(in) :: val
integer(psb_ipk_), intent(out) :: info
character(len=*), optional, intent(in) :: pos
integer(psb_ipk_), intent(in), optional :: idx
end subroutine amg_c_base_onelev_csetc
end interface
interface
subroutine amg_c_base_onelev_csetr(lv,what,val,info,pos,idx)
import :: psb_cspmat_type, psb_c_vect_type, psb_c_base_vect_type, &
& psb_clinmap_type, psb_spk_, amg_c_onelev_type, &
& psb_ipk_, psb_epk_, psb_desc_type
Implicit None
class(amg_c_onelev_type), intent(inout) :: lv
character(len=*), intent(in) :: what
real(psb_spk_), intent(in) :: val
integer(psb_ipk_), intent(out) :: info
character(len=*), optional, intent(in) :: pos
integer(psb_ipk_), intent(in), optional :: idx
end subroutine amg_c_base_onelev_csetr
end interface
interface
subroutine amg_c_base_onelev_dump(lv,level,info,prefix,head,ac,rp,smoother,&
& solver,tprol,global_num)
import :: psb_cspmat_type, psb_c_vect_type, psb_c_base_vect_type, &
& psb_clinmap_type, psb_spk_, amg_c_onelev_type, &
& psb_ipk_, psb_epk_, psb_desc_type
implicit none
class(amg_c_onelev_type), intent(in) :: lv
integer(psb_ipk_), intent(in) :: level
integer(psb_ipk_), intent(out) :: info
character(len=*), intent(in), optional :: prefix, head
logical, optional, intent(in) :: ac, rp, smoother, solver, tprol, global_num
end subroutine amg_c_base_onelev_dump
end interface
interface
subroutine amg_c_base_onelev_map_rstr_a(lv,alpha,u,beta,v,info,work)
import
implicit none
class(amg_c_onelev_type), target, intent(inout) :: lv
complex(psb_spk_), intent(in) :: alpha, beta
complex(psb_spk_), intent(inout) :: u(:)
complex(psb_spk_), intent(out) :: v(:)
integer(psb_ipk_), intent(out) :: info
complex(psb_spk_), optional :: work(:)
end subroutine amg_c_base_onelev_map_rstr_a
subroutine amg_c_base_onelev_map_rstr_v(lv,alpha,vect_u,beta,vect_v,info,work,vtx,vty)
import
implicit none
class(amg_c_onelev_type), target, intent(inout) :: lv
complex(psb_spk_), intent(in) :: alpha, beta
type(psb_c_vect_type), intent(inout) :: vect_u, vect_v
integer(psb_ipk_), intent(out) :: info
complex(psb_spk_), optional :: work(:)
type(psb_c_vect_type), optional, target, intent(inout) :: vtx,vty
end subroutine amg_c_base_onelev_map_rstr_v
end interface
interface
subroutine amg_c_base_onelev_map_prol_a(lv,alpha,v,beta,u,info,work)
import
implicit none
class(amg_c_onelev_type), target, intent(inout) :: lv
complex(psb_spk_), intent(in) :: alpha, beta
complex(psb_spk_), intent(inout) :: u(:)
complex(psb_spk_), intent(out) :: v(:)
integer(psb_ipk_), intent(out) :: info
complex(psb_spk_), optional :: work(:)
end subroutine amg_c_base_onelev_map_prol_a
subroutine amg_c_base_onelev_map_prol_v(lv,alpha,vect_v,beta,vect_u,info,work,vtx,vty)
import
implicit none
class(amg_c_onelev_type), target, intent(inout) :: lv
complex(psb_spk_), intent(in) :: alpha, beta
type(psb_c_vect_type), intent(inout) :: vect_u, vect_v
integer(psb_ipk_), intent(out) :: info
complex(psb_spk_), optional :: work(:)
type(psb_c_vect_type), optional, target, intent(inout) :: vtx,vty
end subroutine amg_c_base_onelev_map_prol_v
end interface
contains
!
! Function returning the size of the amg_prec_type data structure
! in bytes or in number of nonzeros of the operator(s) involved.
!
function c_base_onelev_get_nzeros(lv) result(val)
implicit none
class(amg_c_onelev_type), intent(in) :: lv
integer(psb_epk_) :: val
integer(psb_ipk_) :: i
val = 0
if (allocated(lv%sm)) &
& val = lv%sm%get_nzeros()
if (allocated(lv%sm2a)) &
& val = val + lv%sm2a%get_nzeros()
end function c_base_onelev_get_nzeros
function c_base_onelev_sizeof(lv) result(val)
implicit none
class(amg_c_onelev_type), intent(in) :: lv
integer(psb_epk_) :: val
integer(psb_ipk_) :: i
val = psb_sizeof_ip+psb_sizeof_lp
val = val + lv%desc_ac%sizeof()
val = val + lv%ac%sizeof()
val = val + lv%tprol%sizeof()
val = val + lv%linmap%sizeof()
if (allocated(lv%sm)) val = val + lv%sm%sizeof()
if (allocated(lv%sm2a)) val = val + lv%sm2a%sizeof()
if (allocated(lv%aggr)) val = val + lv%aggr%sizeof()
if (allocated(lv%wrk)) val = val + lv%wrk%sizeof()
end function c_base_onelev_sizeof
subroutine c_base_onelev_nullify(lv)
implicit none
class(amg_c_onelev_type), intent(inout) :: lv
nullify(lv%base_a)
nullify(lv%base_desc)
nullify(lv%sm2)
end subroutine c_base_onelev_nullify
!
! Multilevel defaults:
! multiplicative vs. additive ML framework;
! Smoothed decoupled aggregation with zero threshold;
! distributed coarse matrix;
! damping omega computed with the max-norm estimate of the
! dominant eigenvalue;
! two-sided smoothing (i.e. V-cycle) with 1 smoothing sweep;
!
subroutine c_base_onelev_default(lv)
Implicit None
! Arguments
class(amg_c_onelev_type), target, intent(inout) :: lv
integer(psb_ipk_) :: info
lv%parms%sweeps_pre = 1
lv%parms%sweeps_post = 1
lv%parms%ml_cycle = amg_vcycle_ml_
lv%parms%aggr_type = amg_soc1_
lv%parms%par_aggr_alg = amg_dec_aggr_
lv%parms%aggr_ord = amg_aggr_ord_nat_
lv%parms%aggr_prol = amg_smooth_prol_
lv%parms%coarse_mat = amg_distr_mat_
lv%parms%aggr_omega_alg = amg_eig_est_
lv%parms%aggr_eig = amg_max_norm_
lv%parms%aggr_filter = amg_no_filter_mat_
lv%parms%aggr_omega_val = szero
lv%parms%aggr_thresh = 0.01_psb_spk_
if (allocated(lv%sm)) call lv%sm%default()
if (allocated(lv%sm2a)) then
call lv%sm2a%default()
lv%sm2 => lv%sm2a
else
lv%sm2 => lv%sm
end if
if (.not.allocated(lv%aggr)) allocate(amg_c_dec_aggregator_type :: lv%aggr,stat=info)
if (allocated(lv%aggr)) call lv%aggr%default()
return
end subroutine c_base_onelev_default
subroutine c_base_onelev_bld_tprol(lv,a,desc_a,&
& ilaggr,nlaggr,t_prol,ag_data,info)
implicit none
class(amg_c_onelev_type), intent(inout), target :: lv
type(psb_cspmat_type), intent(inout) :: a
type(psb_desc_type), intent(inout) :: desc_a
integer(psb_lpk_), allocatable, intent(out) :: ilaggr(:),nlaggr(:)
type(psb_lcspmat_type), intent(out) :: t_prol
type(amg_saggr_data), intent(in) :: ag_data
integer(psb_ipk_), intent(out) :: info
call lv%aggr%bld_tprol(lv%parms,ag_data,a,desc_a,ilaggr,nlaggr,t_prol,info)
end subroutine c_base_onelev_bld_tprol
subroutine c_base_onelev_update_aggr(lv,lvnext,info)
implicit none
class(amg_c_onelev_type), intent(inout), target :: lv, lvnext
integer(psb_ipk_), intent(out) :: info
call lv%aggr%update_next(lvnext%aggr,info)
end subroutine c_base_onelev_update_aggr
subroutine c_base_onelev_clone(lv,lvout,info)
Implicit None
! Arguments
class(amg_c_onelev_type), target, intent(inout) :: lv
class(amg_c_onelev_type), target, intent(inout) :: lvout
integer(psb_ipk_), intent(out) :: info
info = psb_success_
if (allocated(lv%sm)) then
call lv%sm%clone(lvout%sm,info)
else
if (allocated(lvout%sm)) then
call lvout%sm%free(info)
if (info==psb_success_) deallocate(lvout%sm,stat=info)
end if
end if
if (allocated(lv%sm2a)) then
call lv%sm%clone(lvout%sm2a,info)
lvout%sm2 => lvout%sm2a
else
if (allocated(lvout%sm2a)) then
call lvout%sm2a%free(info)
if (info==psb_success_) deallocate(lvout%sm2a,stat=info)
end if
lvout%sm2 => lvout%sm
end if
if (allocated(lv%aggr)) then
call lv%aggr%clone(lvout%aggr,info)
else
if (allocated(lvout%aggr)) then
call lvout%aggr%free(info)
if (info==psb_success_) deallocate(lvout%aggr,stat=info)
end if
end if
if (info == psb_success_) call lv%parms%clone(lvout%parms,info)
if (info == psb_success_) call lv%ac%clone(lvout%ac,info)
if (info == psb_success_) call lv%tprol%clone(lvout%tprol,info)
if (info == psb_success_) call lv%desc_ac%clone(lvout%desc_ac,info)
if (info == psb_success_) call lv%linmap%clone(lvout%linmap,info)
if (info == psb_success_) call lv%remap_data%clone(lvout%remap_data,info)
lvout%base_a => lv%base_a
lvout%base_desc => lv%base_desc
return
end subroutine c_base_onelev_clone
subroutine c_base_onelev_move_alloc(lv, b,info)
use psb_base_mod
implicit none
class(amg_c_onelev_type), target, intent(inout) :: lv, b
integer(psb_ipk_), intent(out) :: info
call b%free(info)
b%parms = lv%parms
b%szratio = lv%szratio
if (associated(lv%sm2,lv%sm2a)) then
call move_alloc(lv%sm,b%sm)
call move_alloc(lv%sm2a,b%sm2a)
b%sm2 =>b%sm2a
else
call move_alloc(lv%sm,b%sm)
call move_alloc(lv%sm2a,b%sm2a)
b%sm2 =>b%sm
end if
call move_alloc(lv%aggr,b%aggr)
if (info == psb_success_) call psb_move_alloc(lv%ac,b%ac,info)
if (info == psb_success_) call psb_move_alloc(lv%tprol,b%tprol,info)
if (info == psb_success_) call psb_move_alloc(lv%desc_ac,b%desc_ac,info)
if (info == psb_success_) call psb_move_alloc(lv%linmap,b%linmap,info)
b%base_a => lv%base_a
b%base_desc => lv%base_desc
end subroutine c_base_onelev_move_alloc
function c_base_onelev_get_wrksize(lv) result(val)
implicit none
class(amg_c_onelev_type), intent(inout) :: lv
integer(psb_ipk_) :: val
val = 0
! SM and SM2A can share work vectors
if (allocated(lv%sm)) val = val + lv%sm%get_wrksz()
if (allocated(lv%sm2a)) val = max(val,lv%sm2a%get_wrksz())
!
! Now for the ML application itself
!
! VTX/VTY/VX2L/VY2L are stored explicitly
!
!
! additions for specific ML/cycles
!
select case(lv%parms%ml_cycle)
case(amg_add_ml_,amg_mult_ml_,amg_vcycle_ml_, amg_wcycle_ml_)
! We're good
case(amg_kcycle_ml_, amg_kcyclesym_ml_)
!
! We need 7 in inneritkcycle.
! Can we reuse vtx?
!
val = val + 7
case default
! Need a better error signaling ?
val = -1
end select
end function c_base_onelev_get_wrksize
subroutine c_base_onelev_allocate_wrk(lv,info,vmold)
use psb_base_mod
implicit none
class(amg_c_onelev_type), target, intent(inout) :: lv
integer(psb_ipk_), intent(out) :: info
class(psb_c_base_vect_type), intent(in), optional :: vmold
!
integer(psb_ipk_) :: nwv, i
info = psb_success_
nwv = lv%get_wrksz()
if (.not.allocated(lv%wrk)) allocate(lv%wrk,stat=info)
if (info == 0) then
if (lv%remap_data%desc_ac_pre_remap%is_asb()) then
!
! Need to fix this, we need two different allocations
!
call lv%wrk%alloc(nwv,lv%base_desc,info,vmold=vmold,&
& desc2=lv%remap_data%desc_ac_pre_remap)
else
call lv%wrk%alloc(nwv,lv%base_desc,info,vmold=vmold)
end if
end if
end subroutine c_base_onelev_allocate_wrk
subroutine c_base_onelev_free_wrk(lv,info)
use psb_base_mod
implicit none
class(amg_c_onelev_type), target, intent(inout) :: lv
integer(psb_ipk_), intent(out) :: info
!
integer(psb_ipk_) :: nwv,i
info = psb_success_
if (allocated(lv%wrk)) then
call lv%wrk%free(info)
if (info == 0) deallocate(lv%wrk,stat=info)
end if
end subroutine c_base_onelev_free_wrk
subroutine c_wrk_alloc(wk,nwv,desc,info,vmold, desc2)
use psb_base_mod
Implicit None
! Arguments
class(amg_cmlprec_wrk_type), target, intent(inout) :: wk
integer(psb_ipk_), intent(in) :: nwv
type(psb_desc_type), intent(in) :: desc
integer(psb_ipk_), intent(out) :: info
class(psb_c_base_vect_type), intent(in), optional :: vmold
type(psb_desc_type), intent(in), optional :: desc2
!
integer(psb_ipk_) :: i
info = psb_success_
call wk%free(info)
if (present(desc2)) then
!!$ write(0,*) 'Check on wrk_alloc 2',&
!!$ & desc2%get_local_rows(), desc%get_local_rows(),&
!!$ & desc2%get_local_cols(),desc%get_local_cols()
!!$ flush(0)
if (desc2%get_local_cols()>desc%get_local_cols()) then
call psb_geasb(wk%vx2l,desc2,info,&
& scratch=.true.,mold=vmold)
call psb_geasb(wk%vy2l,desc2,info,&
& scratch=.true.,mold=vmold)
call psb_geasb(wk%vtx,desc2,info,&
& scratch=.true.,mold=vmold)
call psb_geasb(wk%vty,desc2,info,&
& scratch=.true.,mold=vmold)
allocate(wk%wv(nwv),stat=info)
do i=1,nwv
call psb_geasb(wk%wv(i),desc2,info,&
& scratch=.true.,mold=vmold)
end do
else
!!$ write(0,*) 'Check on wrk_alloc 1.5 ',&
!!$ & desc%get_local_rows(),&
!!$ & desc%get_local_cols()
call psb_geasb(wk%vx2l,desc,info,&
& scratch=.true.,mold=vmold)
call psb_geasb(wk%vy2l,desc,info,&
& scratch=.true.,mold=vmold)
call psb_geasb(wk%vtx,desc,info,&
& scratch=.true.,mold=vmold)
call psb_geasb(wk%vty,desc,info,&
& scratch=.true.,mold=vmold)
allocate(wk%wv(nwv),stat=info)
do i=1,nwv
call psb_geasb(wk%wv(i),desc,info,&
& scratch=.true.,mold=vmold)
end do
end if
else
!!$ write(0,*) 'Check on wrk_alloc 1 ',&
!!$ & desc%get_local_rows(),&
!!$ & desc%get_local_cols()
call psb_geasb(wk%vx2l,desc,info,&
& scratch=.true.,mold=vmold)
call psb_geasb(wk%vy2l,desc,info,&
& scratch=.true.,mold=vmold)
call psb_geasb(wk%vtx,desc,info,&
& scratch=.true.,mold=vmold)
call psb_geasb(wk%vty,desc,info,&
& scratch=.true.,mold=vmold)
allocate(wk%wv(nwv),stat=info)
do i=1,nwv
call psb_geasb(wk%wv(i),desc,info,&
& scratch=.true.,mold=vmold)
end do
end if
end subroutine c_wrk_alloc
subroutine c_wrk_free(wk,info)
Implicit None
! Arguments
class(amg_cmlprec_wrk_type), target, intent(inout) :: wk
integer(psb_ipk_), intent(out) :: info
!
integer(psb_ipk_) :: i
info = psb_success_
if (allocated(wk%tx)) deallocate(wk%tx, stat=info)
if (allocated(wk%ty)) deallocate(wk%ty, stat=info)
if (allocated(wk%x2l)) deallocate(wk%x2l, stat=info)
if (allocated(wk%y2l)) deallocate(wk%y2l, stat=info)
call wk%vtx%free(info)
call wk%vty%free(info)
call wk%vx2l%free(info)
call wk%vy2l%free(info)
if (allocated(wk%wv)) then
do i=1,size(wk%wv)
call wk%wv(i)%free(info)
end do
deallocate(wk%wv, stat=info)
end if
end subroutine c_wrk_free
subroutine c_wrk_clone(wk,wkout,info)
use psb_base_mod
Implicit None
! Arguments
class(amg_cmlprec_wrk_type), target, intent(inout) :: wk
class(amg_cmlprec_wrk_type), target, intent(inout) :: wkout
integer(psb_ipk_), intent(out) :: info
!
integer(psb_ipk_) :: i
info = psb_success_
call psb_safe_ab_cpy(wk%tx,wkout%tx,info)
call psb_safe_ab_cpy(wk%ty,wkout%ty,info)
call psb_safe_ab_cpy(wk%x2l,wkout%x2l,info)
call psb_safe_ab_cpy(wk%y2l,wkout%y2l,info)
call wk%vtx%clone(wkout%vtx,info)
call wk%vty%clone(wkout%vty,info)
call wk%vx2l%clone(wkout%vx2l,info)
call wk%vy2l%clone(wkout%vy2l,info)
if (allocated(wkout%wv)) then
do i=1,size(wkout%wv)
call wkout%wv(i)%free(info)
end do
deallocate( wkout%wv)
end if
allocate(wkout%wv(size(wk%wv)),stat=info)
do i=1,size(wk%wv)
call wk%wv(i)%clone(wkout%wv(i),info)
end do
return
end subroutine c_wrk_clone
subroutine c_wrk_move_alloc(wk, b,info)
implicit none
class(amg_cmlprec_wrk_type), target, intent(inout) :: wk, b
integer(psb_ipk_), intent(out) :: info
call b%free(info)
call move_alloc(wk%tx,b%tx)
call move_alloc(wk%ty,b%ty)
call move_alloc(wk%x2l,b%x2l)
call move_alloc(wk%y2l,b%y2l)
!
! Should define V%move_alloc....
call move_alloc(wk%vtx%v,b%vtx%v)
call move_alloc(wk%vty%v,b%vty%v)
call move_alloc(wk%vx2l%v,b%vx2l%v)
call move_alloc(wk%vy2l%v,b%vy2l%v)
call move_alloc(wk%wv,b%wv)
end subroutine c_wrk_move_alloc
subroutine c_wrk_cnv(wk,info,vmold)
use psb_base_mod
Implicit None
! Arguments
class(amg_cmlprec_wrk_type), target, intent(inout) :: wk
integer(psb_ipk_), intent(out) :: info
class(psb_c_base_vect_type), intent(in), optional :: vmold
!
integer(psb_ipk_) :: i
info = psb_success_
if (present(vmold)) then
call wk%vtx%cnv(vmold)
call wk%vty%cnv(vmold)
call wk%vx2l%cnv(vmold)
call wk%vy2l%cnv(vmold)
if (allocated(wk%wv)) then
do i=1,size(wk%wv)
call wk%wv(i)%cnv(vmold)
end do
end if
end if
end subroutine c_wrk_cnv
function c_wrk_sizeof(wk) result(val)
use psb_realloc_mod
implicit none
class(amg_cmlprec_wrk_type), intent(in) :: wk
integer(psb_epk_) :: val
integer :: i
val = 0
val = val + (1_psb_epk_ * (2*psb_sizeof_sp)) * psb_size(wk%tx)
val = val + (1_psb_epk_ * (2*psb_sizeof_sp)) * psb_size(wk%ty)
val = val + (1_psb_epk_ * (2*psb_sizeof_sp)) * psb_size(wk%x2l)
val = val + (1_psb_epk_ * (2*psb_sizeof_sp)) * psb_size(wk%y2l)
val = val + wk%vtx%sizeof()
val = val + wk%vty%sizeof()
val = val + wk%vx2l%sizeof()
val = val + wk%vy2l%sizeof()
if (allocated(wk%wv)) then
do i=1, size(wk%wv)
val = val + wk%wv(i)%sizeof()
end do
end if
end function c_wrk_sizeof
subroutine c_remap_data_clone(rmp, remap_out, info)
use psb_base_mod
implicit none
! Arguments
class(amg_c_remap_data_type), target, intent(inout) :: rmp
class(amg_c_remap_data_type), target, intent(inout) :: remap_out
integer(psb_ipk_), intent(out) :: info
!
integer(psb_ipk_) :: i
info = psb_success_
call rmp%ac_pre_remap%clone(remap_out%ac_pre_remap,info)
if (info == psb_success_) &
& call rmp%desc_ac_pre_remap%clone(remap_out%desc_ac_pre_remap,info)
remap_out%idest = rmp%idest
call psb_safe_ab_cpy(rmp%isrc,remap_out%isrc,info)
call psb_safe_ab_cpy(rmp%nrsrc,remap_out%nrsrc,info)
end subroutine c_remap_data_clone
end module amg_c_onelev_mod