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RKR solver

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implement-ainv
Cirdans-Home 4 years ago
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590
amgprec/amg_c_rkr_solver.f90
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!
!
! AMG4PSBLAS version 1.0
! Algebraic Multigrid Package
! based on PSBLAS (Parallel Sparse BLAS version 3.5)
!
! (C) Copyright 2020
!
! 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 MLD2P4 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 MLD2P4 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_rkr_solver_mod.f90
!
! Module: amg_c_rkr_solver_mod
!
module amg_c_rkr_solver
use amg_c_base_solver_mod
use amg_c_prec_type
type, extends(amg_c_base_solver_type) :: amg_c_rkr_solver_type
!
logical :: global
character(len=16) :: method, kprec, sub_solve
integer(psb_ipk_) :: irst, istopc, itmax, itrace, i_sub_solve
integer(psb_ipk_) :: fillin
real(psb_spk_) :: eps
type(amg_cprec_type) :: prec
type(psb_desc_type) :: desc_local
type(psb_cspmat_type) :: a_local
type(psb_c_vect_type) :: x_local, z_local
type(psb_cspmat_type), pointer :: a=>null()
contains
!
!
procedure, pass(sv) :: dump => c_rkr_solver_dmp
procedure, pass(sv) :: check => c_rkr_solver_check
procedure, pass(sv) :: clone => c_rkr_solver_clone
procedure, pass(sv) :: clone_settings => c_rkr_solver_clone_settings
procedure, pass(sv) :: cnv => c_rkr_solver_cnv
procedure, pass(sv) :: apply_v => amg_c_rkr_solver_apply_vect
procedure, pass(sv) :: apply_a => amg_c_rkr_solver_apply
procedure, pass(sv) :: clear_data => c_rkr_solver_clear_data
procedure, pass(sv) :: free => c_rkr_solver_free
procedure, pass(sv) :: cseti => c_rkr_solver_cseti
procedure, pass(sv) :: csetc => c_rkr_solver_csetc
procedure, pass(sv) :: csetr => c_rkr_solver_csetr
procedure, pass(sv) :: sizeof => c_rkr_solver_sizeof
procedure, pass(sv) :: get_nzeros => c_rkr_solver_get_nzeros
!procedure, nopass :: get_id => c_rkr_solver_get_id
procedure, pass(sv) :: is_global => c_rkr_solver_is_global
procedure, nopass :: is_iterative => c_rkr_solver_is_iterative
!
! These methods are specific for the new solver type
! and therefore need to be overridden
!
procedure, pass(sv) :: descr => c_rkr_solver_descr
procedure, pass(sv) :: default => c_rkr_solver_default
procedure, pass(sv) :: build => amg_c_rkr_solver_bld
procedure, nopass :: get_fmt => c_rkr_solver_get_fmt
end type amg_c_rkr_solver_type
private :: c_rkr_solver_get_fmt, c_rkr_solver_descr, c_rkr_solver_default
interface
subroutine amg_c_rkr_solver_apply_vect(alpha,sv,x,beta,y,desc_data,&
& trans,work,wv,info,init,initu)
import :: psb_desc_type, amg_c_rkr_solver_type, psb_c_vect_type, psb_spk_, &
& psb_cspmat_type, psb_c_base_sparse_mat, psb_c_base_vect_type, psb_ipk_
implicit none
type(psb_desc_type), intent(in) :: desc_data
class(amg_c_rkr_solver_type), intent(inout) :: sv
type(psb_c_vect_type),intent(inout) :: x
type(psb_c_vect_type),intent(inout) :: y
complex(psb_spk_),intent(in) :: alpha,beta
character(len=1),intent(in) :: trans
complex(psb_spk_),target, intent(inout) :: work(:)
type(psb_c_vect_type),intent(inout) :: wv(:)
integer(psb_ipk_), intent(out) :: info
character, intent(in), optional :: init
type(psb_c_vect_type),intent(inout), optional :: initu
end subroutine amg_c_rkr_solver_apply_vect
end interface
interface
subroutine amg_c_rkr_solver_apply(alpha,sv,x,beta,y,desc_data,&
& trans,work,info,init,initu)
import :: psb_desc_type, amg_c_rkr_solver_type, psb_c_vect_type, psb_spk_, &
& psb_cspmat_type, psb_c_base_sparse_mat, psb_c_base_vect_type, psb_ipk_
implicit none
type(psb_desc_type), intent(in) :: desc_data
class(amg_c_rkr_solver_type), intent(inout) :: sv
complex(psb_spk_),intent(inout) :: x(:)
complex(psb_spk_),intent(inout) :: y(:)
complex(psb_spk_),intent(in) :: alpha,beta
character(len=1),intent(in) :: trans
complex(psb_spk_),target, intent(inout) :: work(:)
integer(psb_ipk_), intent(out) :: info
character, intent(in), optional :: init
complex(psb_spk_),intent(inout), optional :: initu(:)
end subroutine amg_c_rkr_solver_apply
end interface
interface
subroutine amg_c_rkr_solver_bld(a,desc_a,sv,info,b,amold,vmold,imold)
import :: psb_desc_type, amg_c_rkr_solver_type, psb_c_vect_type, psb_spk_, &
& psb_cspmat_type, psb_c_base_sparse_mat, psb_c_base_vect_type,&
& psb_ipk_, psb_i_base_vect_type
implicit none
type(psb_cspmat_type), intent(in), target :: a
Type(psb_desc_type), Intent(inout) :: desc_a
class(amg_c_rkr_solver_type), intent(inout) :: sv
integer(psb_ipk_), intent(out) :: info
type(psb_cspmat_type), intent(in), target, optional :: b
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_rkr_solver_bld
end interface
contains
!
!
subroutine c_rkr_solver_default(sv)
Implicit None
! Arguments
class(amg_c_rkr_solver_type), intent(inout) :: sv
sv%method = 'bicgstab'
sv%kprec = 'bjac'
sv%sub_solve = 'ilu'
sv%i_sub_solve = -1
sv%fillin = 1
sv%irst = 30
sv%istopc = 2
sv%itmax = 40
sv%itrace = -1
sv%eps = 1.d-6
sv%global = .false.
return
end subroutine c_rkr_solver_default
function c_rkr_solver_get_nzeros(sv) result(val)
implicit none
! Arguments
class(amg_c_rkr_solver_type), intent(in) :: sv
integer(psb_epk_) :: val
val = sv%prec%get_nzeros()
return
end function c_rkr_solver_get_nzeros
function c_rkr_solver_sizeof(sv) result(val)
implicit none
! Arguments
class(amg_c_rkr_solver_type), intent(in) :: sv
integer(psb_epk_) :: val
val = sv%prec%sizeof() + sv%desc_local%sizeof() + sv%a_local%sizeof()
return
end function c_rkr_solver_sizeof
subroutine c_rkr_solver_check(sv,info)
Implicit None
! Arguments
class(amg_c_rkr_solver_type), intent(inout) :: sv
integer(psb_ipk_), intent(out) :: info
integer(psb_ipk_) :: err_act
character(len=20) :: name='c_rkr_solver_check'
call psb_erractionsave(err_act)
info = psb_success_
if (info /= psb_success_) goto 9999
call psb_erractionrestore(err_act)
return
9999 call psb_error_handler(err_act)
return
end subroutine c_rkr_solver_check
subroutine c_rkr_solver_cseti(sv,what,val,info,idx)
Implicit None
! Arguments
class(amg_c_rkr_solver_type), intent(inout) :: sv
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
character(len=20) :: name='c_rkr_solver_cseti'
info = psb_success_
call psb_erractionsave(err_act)
select case(psb_toupper(trim(what)))
case('RKR_IRST')
sv%irst = val
case('RKR_ISTOPC')
sv%istopc = val
case('RKR_ITMAX')
sv%itmax = val
case('RKR_ITRACE')
sv%itrace = val
case('RKR_SUB_SOLVE')
sv%i_sub_solve = val
case('RKR_FILLIN')
sv%fillin = val
case default
call sv%amg_c_base_solver_type%set(what,val,info,idx=idx)
end select
call psb_erractionrestore(err_act)
return
9999 call psb_error_handler(err_act)
return
end subroutine c_rkr_solver_cseti
subroutine c_rkr_solver_csetc(sv,what,val,info,idx)
Implicit None
! Arguments
class(amg_c_rkr_solver_type), intent(inout) :: sv
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, ival
character(len=20) :: name='c_rkr_solver_csetc'
info = psb_success_
call psb_erractionsave(err_act)
select case(psb_toupper(trim(what)))
case('RKR_METHOD')
sv%method = psb_toupper(trim(val))
case('RKR_KPREC')
sv%kprec = psb_toupper(trim(val))
case('RKR_SUB_SOLVE')
sv%sub_solve = psb_toupper(trim(val))
case('RKR_GLOBAL')
select case(psb_toupper(trim(val)))
case('LOCAL','FALSE')
sv%global = .false.
case('GLOBAL','TRUE')
sv%global =.true.
end select
case default
call sv%amg_c_base_solver_type%set(what,val,info,idx=idx)
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 call psb_error_handler(err_act)
return
end subroutine c_rkr_solver_csetc
subroutine c_rkr_solver_csetr(sv,what,val,info,idx)
Implicit None
! Arguments
class(amg_c_rkr_solver_type), intent(inout) :: sv
character(len=*), intent(in) :: what
real(psb_spk_), intent(in) :: val
integer(psb_ipk_), intent(out) :: info
integer(psb_ipk_), intent(in), optional :: idx
integer(psb_ipk_) :: err_act
character(len=20) :: name='c_rkr_solver_csetr'
call psb_erractionsave(err_act)
info = psb_success_
select case(psb_toupper(what))
case('RKR_EPS')
sv%eps = val
case default
call sv%amg_c_base_solver_type%set(what,val,info,idx=idx)
end select
call psb_erractionrestore(err_act)
return
9999 call psb_error_handler(err_act)
return
end subroutine c_rkr_solver_csetr
subroutine c_rkr_solver_clear_data(sv,info)
use psb_base_mod, only : psb_exit
Implicit None
! Arguments
class(amg_c_rkr_solver_type), intent(inout) :: sv
integer(psb_ipk_), intent(out) :: info
integer(psb_ipk_) :: err_act
type(psb_ctxt_type) :: l_ctxt
character(len=20) :: name='c_rkr_solver_free'
call psb_erractionsave(err_act)
info = psb_success_
call sv%prec%free(info)
call sv%a_local%free()
call sv%x_local%free(info)
call sv%z_local%free(info)
if ((.not.sv%global).and.sv%desc_local%is_ok()) then
l_ctxt=sv%desc_local%get_context()
call psb_exit(l_ctxt,close=.false.)
end if
call sv%desc_local%free(info)
nullify(sv%a)
call psb_erractionrestore(err_act)
return
end subroutine c_rkr_solver_clear_data
subroutine c_rkr_solver_free(sv,info)
use psb_base_mod, only : psb_exit
Implicit None
! Arguments
class(amg_c_rkr_solver_type), intent(inout) :: sv
integer(psb_ipk_), intent(out) :: info
integer(psb_ipk_) :: err_act
type(psb_ctxt_type) :: l_ctxt
character(len=20) :: name='c_rkr_solver_free'
call psb_erractionsave(err_act)
info = psb_success_
call sv%clear_data(info)
call psb_erractionrestore(err_act)
return
end subroutine c_rkr_solver_free
function c_rkr_solver_get_fmt() result(val)
implicit none
character(len=32) :: val
val = "RKR solver"
end function c_rkr_solver_get_fmt
subroutine c_rkr_solver_descr(sv,info,iout,coarse)
Implicit None
! Arguments
class(amg_c_rkr_solver_type), intent(in) :: sv
integer(psb_ipk_), intent(out) :: info
integer(psb_ipk_), intent(in), optional :: iout
logical, intent(in), optional :: coarse
! Local variables
integer(psb_ipk_) :: err_act
character(len=20), parameter :: name='amg_c_rkr_solver_descr'
integer(psb_ipk_) :: iout_
call psb_erractionsave(err_act)
info = psb_success_
if (present(iout)) then
iout_ = iout
else
iout_ = psb_out_unit
endif
if (sv%global) then
write(iout_,*) ' Recursive Krylov solver (global)'
else
write(iout_,*) ' Recursive Krylov solver (local) '
end if
write(iout_,*) ' method: ',sv%method
write(iout_,*) ' kprec: ',sv%kprec
if (sv%i_sub_solve > 0) then
write(iout_,*) ' sub_solve: ',amg_fact_names(sv%i_sub_solve)
else
write(iout_,*) ' sub_solve: ',sv%sub_solve
end if
write(iout_,*) ' itmax: ',sv%itmax
write(iout_,*) ' eps: ',sv%eps
write(iout_,*) ' fillin: ',sv%fillin
call psb_erractionrestore(err_act)
return
9999 call psb_error_handler(err_act)
return
end subroutine c_rkr_solver_descr
subroutine c_rkr_solver_cnv(sv,info,amold,vmold,imold)
implicit none
class(amg_c_rkr_solver_type), intent(inout) :: sv
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
call sv%prec%cnv(info,amold=amold,vmold=vmold,imold=imold)
end subroutine c_rkr_solver_cnv
subroutine c_rkr_solver_clone(sv,svout,info)
Implicit None
! Arguments
class(amg_c_rkr_solver_type), intent(inout) :: sv
class(amg_c_base_solver_type), allocatable, intent(inout) :: svout
integer(psb_ipk_), intent(out) :: info
info = psb_success_
call svout%free(info)
allocate(svout,stat=info,mold=sv)
select type(so=>svout)
class is(amg_c_rkr_solver_type)
so%method = sv%method
so%kprec = sv%kprec
so%sub_solve = sv%sub_solve
so%i_sub_solve = sv%i_sub_solve
so%fillin = sv%fillin
so%irst = sv%irst
so%istopc = sv%istopc
so%itmax = sv%itmax
so%itrace = sv%itrace
so%global = sv%global
so%eps = sv%eps
call sv%a_local%clone(so%a_local,info)
call sv%desc_local%clone(so%desc_local,info)
call sv%prec%clone(so%prec,info)
class default
info = psb_err_internal_error_
end select
end subroutine c_rkr_solver_clone
subroutine c_rkr_solver_clone_settings(sv,svout,info)
Implicit None
! Arguments
class(amg_c_rkr_solver_type), intent(inout) :: sv
class(amg_c_base_solver_type), intent(inout) :: svout
integer(psb_ipk_), intent(out) :: info
info = psb_success_
select type(so=>svout)
class is(amg_c_rkr_solver_type)
so%method = sv%method
so%kprec = sv%kprec
so%sub_solve = sv%sub_solve
so%i_sub_solve = sv%i_sub_solve
so%fillin = sv%fillin
so%irst = sv%irst
so%istopc = sv%istopc
so%itmax = sv%itmax
so%itrace = sv%itrace
so%global = sv%global
so%eps = sv%eps
class default
info = psb_err_internal_error_
end select
end subroutine c_rkr_solver_clone_settings
subroutine c_rkr_solver_dmp(sv,desc,level,info,prefix,head,solver,global_num)
implicit none
class(amg_c_rkr_solver_type), intent(in) :: sv
type(psb_desc_type), intent(in) :: desc
integer(psb_ipk_), intent(in) :: level
integer(psb_ipk_), intent(out) :: info
character(len=*), intent(in), optional :: prefix, head
logical, optional, intent(in) :: solver, global_num
call sv%prec%dump(info,prefix=prefix,head=head)
end subroutine c_rkr_solver_dmp
!
! Notify whether RKR is used as a global solver
!
function c_rkr_solver_is_global(sv) result(val)
implicit none
class(amg_c_rkr_solver_type), intent(in) :: sv
logical :: val
val = (sv%global)
end function c_rkr_solver_is_global
!
function c_rkr_solver_is_iterative() result(val)
implicit none
logical :: val
val = .true.
end function c_rkr_solver_is_iterative
end module amg_c_rkr_solver

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amgprec/amg_d_rkr_solver.f90
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!
!
! AMG4PSBLAS version 1.0
! Algebraic Multigrid Package
! based on PSBLAS (Parallel Sparse BLAS version 3.5)
!
! (C) Copyright 2020
!
! 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 MLD2P4 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 MLD2P4 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_d_rkr_solver_mod.f90
!
! Module: amg_d_rkr_solver_mod
!
module amg_d_rkr_solver
use amg_d_base_solver_mod
use amg_d_prec_type
type, extends(amg_d_base_solver_type) :: amg_d_rkr_solver_type
!
logical :: global
character(len=16) :: method, kprec, sub_solve
integer(psb_ipk_) :: irst, istopc, itmax, itrace, i_sub_solve
integer(psb_ipk_) :: fillin
real(psb_dpk_) :: eps
type(amg_dprec_type) :: prec
type(psb_desc_type) :: desc_local
type(psb_dspmat_type) :: a_local
type(psb_d_vect_type) :: x_local, z_local
type(psb_dspmat_type), pointer :: a=>null()
contains
!
!
procedure, pass(sv) :: dump => d_rkr_solver_dmp
procedure, pass(sv) :: check => d_rkr_solver_check
procedure, pass(sv) :: clone => d_rkr_solver_clone
procedure, pass(sv) :: clone_settings => d_rkr_solver_clone_settings
procedure, pass(sv) :: cnv => d_rkr_solver_cnv
procedure, pass(sv) :: apply_v => amg_d_rkr_solver_apply_vect
procedure, pass(sv) :: apply_a => amg_d_rkr_solver_apply
procedure, pass(sv) :: clear_data => d_rkr_solver_clear_data
procedure, pass(sv) :: free => d_rkr_solver_free
procedure, pass(sv) :: cseti => d_rkr_solver_cseti
procedure, pass(sv) :: csetc => d_rkr_solver_csetc
procedure, pass(sv) :: csetr => d_rkr_solver_csetr
procedure, pass(sv) :: sizeof => d_rkr_solver_sizeof
procedure, pass(sv) :: get_nzeros => d_rkr_solver_get_nzeros
!procedure, nopass :: get_id => d_rkr_solver_get_id
procedure, pass(sv) :: is_global => d_rkr_solver_is_global
procedure, nopass :: is_iterative => d_rkr_solver_is_iterative
!
! These methods are specific for the new solver type
! and therefore need to be overridden
!
procedure, pass(sv) :: descr => d_rkr_solver_descr
procedure, pass(sv) :: default => d_rkr_solver_default
procedure, pass(sv) :: build => amg_d_rkr_solver_bld
procedure, nopass :: get_fmt => d_rkr_solver_get_fmt
end type amg_d_rkr_solver_type
private :: d_rkr_solver_get_fmt, d_rkr_solver_descr, d_rkr_solver_default
interface
subroutine amg_d_rkr_solver_apply_vect(alpha,sv,x,beta,y,desc_data,&
& trans,work,wv,info,init,initu)
import :: psb_desc_type, amg_d_rkr_solver_type, psb_d_vect_type, psb_dpk_, &
& psb_dspmat_type, psb_d_base_sparse_mat, psb_d_base_vect_type, psb_ipk_
implicit none
type(psb_desc_type), intent(in) :: desc_data
class(amg_d_rkr_solver_type), intent(inout) :: sv
type(psb_d_vect_type),intent(inout) :: x
type(psb_d_vect_type),intent(inout) :: y
real(psb_dpk_),intent(in) :: alpha,beta
character(len=1),intent(in) :: trans
real(psb_dpk_),target, intent(inout) :: work(:)
type(psb_d_vect_type),intent(inout) :: wv(:)
integer(psb_ipk_), intent(out) :: info
character, intent(in), optional :: init
type(psb_d_vect_type),intent(inout), optional :: initu
end subroutine amg_d_rkr_solver_apply_vect
end interface
interface
subroutine amg_d_rkr_solver_apply(alpha,sv,x,beta,y,desc_data,&
& trans,work,info,init,initu)
import :: psb_desc_type, amg_d_rkr_solver_type, psb_d_vect_type, psb_dpk_, &
& psb_dspmat_type, psb_d_base_sparse_mat, psb_d_base_vect_type, psb_ipk_
implicit none
type(psb_desc_type), intent(in) :: desc_data
class(amg_d_rkr_solver_type), intent(inout) :: sv
real(psb_dpk_),intent(inout) :: x(:)
real(psb_dpk_),intent(inout) :: y(:)
real(psb_dpk_),intent(in) :: alpha,beta
character(len=1),intent(in) :: trans
real(psb_dpk_),target, intent(inout) :: work(:)
integer(psb_ipk_), intent(out) :: info
character, intent(in), optional :: init
real(psb_dpk_),intent(inout), optional :: initu(:)
end subroutine amg_d_rkr_solver_apply
end interface
interface
subroutine amg_d_rkr_solver_bld(a,desc_a,sv,info,b,amold,vmold,imold)
import :: psb_desc_type, amg_d_rkr_solver_type, psb_d_vect_type, psb_dpk_, &
& psb_dspmat_type, psb_d_base_sparse_mat, psb_d_base_vect_type,&
& psb_ipk_, psb_i_base_vect_type
implicit none
type(psb_dspmat_type), intent(in), target :: a
Type(psb_desc_type), Intent(inout) :: desc_a
class(amg_d_rkr_solver_type), intent(inout) :: sv
integer(psb_ipk_), intent(out) :: info
type(psb_dspmat_type), intent(in), target, optional :: b
class(psb_d_base_sparse_mat), intent(in), optional :: amold
class(psb_d_base_vect_type), intent(in), optional :: vmold
class(psb_i_base_vect_type), intent(in), optional :: imold
end subroutine amg_d_rkr_solver_bld
end interface
contains
!
!
subroutine d_rkr_solver_default(sv)
Implicit None
! Arguments
class(amg_d_rkr_solver_type), intent(inout) :: sv
sv%method = 'bicgstab'
sv%kprec = 'bjac'
sv%sub_solve = 'ilu'
sv%i_sub_solve = -1
sv%fillin = 1
sv%irst = 30
sv%istopc = 2
sv%itmax = 40
sv%itrace = -1
sv%eps = 1.d-6
sv%global = .false.
return
end subroutine d_rkr_solver_default
function d_rkr_solver_get_nzeros(sv) result(val)
implicit none
! Arguments
class(amg_d_rkr_solver_type), intent(in) :: sv
integer(psb_epk_) :: val
val = sv%prec%get_nzeros()
return
end function d_rkr_solver_get_nzeros
function d_rkr_solver_sizeof(sv) result(val)
implicit none
! Arguments
class(amg_d_rkr_solver_type), intent(in) :: sv
integer(psb_epk_) :: val
val = sv%prec%sizeof() + sv%desc_local%sizeof() + sv%a_local%sizeof()
return
end function d_rkr_solver_sizeof
subroutine d_rkr_solver_check(sv,info)
Implicit None
! Arguments
class(amg_d_rkr_solver_type), intent(inout) :: sv
integer(psb_ipk_), intent(out) :: info
integer(psb_ipk_) :: err_act
character(len=20) :: name='d_rkr_solver_check'
call psb_erractionsave(err_act)
info = psb_success_
if (info /= psb_success_) goto 9999
call psb_erractionrestore(err_act)
return
9999 call psb_error_handler(err_act)
return
end subroutine d_rkr_solver_check
subroutine d_rkr_solver_cseti(sv,what,val,info,idx)
Implicit None
! Arguments
class(amg_d_rkr_solver_type), intent(inout) :: sv
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
character(len=20) :: name='d_rkr_solver_cseti'
info = psb_success_
call psb_erractionsave(err_act)
select case(psb_toupper(trim(what)))
case('RKR_IRST')
sv%irst = val
case('RKR_ISTOPC')
sv%istopc = val
case('RKR_ITMAX')
sv%itmax = val
case('RKR_ITRACE')
sv%itrace = val
case('RKR_SUB_SOLVE')
sv%i_sub_solve = val
case('RKR_FILLIN')
sv%fillin = val
case default
call sv%amg_d_base_solver_type%set(what,val,info,idx=idx)
end select
call psb_erractionrestore(err_act)
return
9999 call psb_error_handler(err_act)
return
end subroutine d_rkr_solver_cseti
subroutine d_rkr_solver_csetc(sv,what,val,info,idx)
Implicit None
! Arguments
class(amg_d_rkr_solver_type), intent(inout) :: sv
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, ival
character(len=20) :: name='d_rkr_solver_csetc'
info = psb_success_
call psb_erractionsave(err_act)
select case(psb_toupper(trim(what)))
case('RKR_METHOD')
sv%method = psb_toupper(trim(val))
case('RKR_KPREC')
sv%kprec = psb_toupper(trim(val))
case('RKR_SUB_SOLVE')
sv%sub_solve = psb_toupper(trim(val))
case('RKR_GLOBAL')
select case(psb_toupper(trim(val)))
case('LOCAL','FALSE')
sv%global = .false.
case('GLOBAL','TRUE')
sv%global =.true.
end select
case default
call sv%amg_d_base_solver_type%set(what,val,info,idx=idx)
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 call psb_error_handler(err_act)
return
end subroutine d_rkr_solver_csetc
subroutine d_rkr_solver_csetr(sv,what,val,info,idx)
Implicit None
! Arguments
class(amg_d_rkr_solver_type), intent(inout) :: sv
character(len=*), intent(in) :: what
real(psb_dpk_), intent(in) :: val
integer(psb_ipk_), intent(out) :: info
integer(psb_ipk_), intent(in), optional :: idx
integer(psb_ipk_) :: err_act
character(len=20) :: name='d_rkr_solver_csetr'
call psb_erractionsave(err_act)
info = psb_success_
select case(psb_toupper(what))
case('RKR_EPS')
sv%eps = val
case default
call sv%amg_d_base_solver_type%set(what,val,info,idx=idx)
end select
call psb_erractionrestore(err_act)
return
9999 call psb_error_handler(err_act)
return
end subroutine d_rkr_solver_csetr
subroutine d_rkr_solver_clear_data(sv,info)
use psb_base_mod, only : psb_exit
Implicit None
! Arguments
class(amg_d_rkr_solver_type), intent(inout) :: sv
integer(psb_ipk_), intent(out) :: info
integer(psb_ipk_) :: err_act
type(psb_ctxt_type) :: l_ctxt
character(len=20) :: name='d_rkr_solver_free'
call psb_erractionsave(err_act)
info = psb_success_
call sv%prec%free(info)
call sv%a_local%free()
call sv%x_local%free(info)
call sv%z_local%free(info)
if ((.not.sv%global).and.sv%desc_local%is_ok()) then
l_ctxt=sv%desc_local%get_context()
call psb_exit(l_ctxt,close=.false.)
end if
call sv%desc_local%free(info)
nullify(sv%a)
call psb_erractionrestore(err_act)
return
end subroutine d_rkr_solver_clear_data
subroutine d_rkr_solver_free(sv,info)
use psb_base_mod, only : psb_exit
Implicit None
! Arguments
class(amg_d_rkr_solver_type), intent(inout) :: sv
integer(psb_ipk_), intent(out) :: info
integer(psb_ipk_) :: err_act
type(psb_ctxt_type) :: l_ctxt
character(len=20) :: name='d_rkr_solver_free'
call psb_erractionsave(err_act)
info = psb_success_
call sv%clear_data(info)
call psb_erractionrestore(err_act)
return
end subroutine d_rkr_solver_free
function d_rkr_solver_get_fmt() result(val)
implicit none
character(len=32) :: val
val = "RKR solver"
end function d_rkr_solver_get_fmt
subroutine d_rkr_solver_descr(sv,info,iout,coarse)
Implicit None
! Arguments
class(amg_d_rkr_solver_type), intent(in) :: sv
integer(psb_ipk_), intent(out) :: info
integer(psb_ipk_), intent(in), optional :: iout
logical, intent(in), optional :: coarse
! Local variables
integer(psb_ipk_) :: err_act
character(len=20), parameter :: name='amg_d_rkr_solver_descr'
integer(psb_ipk_) :: iout_
call psb_erractionsave(err_act)
info = psb_success_
if (present(iout)) then
iout_ = iout
else
iout_ = psb_out_unit
endif
if (sv%global) then
write(iout_,*) ' Recursive Krylov solver (global)'
else
write(iout_,*) ' Recursive Krylov solver (local) '
end if
write(iout_,*) ' method: ',sv%method
write(iout_,*) ' kprec: ',sv%kprec
if (sv%i_sub_solve > 0) then
write(iout_,*) ' sub_solve: ',amg_fact_names(sv%i_sub_solve)
else
write(iout_,*) ' sub_solve: ',sv%sub_solve
end if
write(iout_,*) ' itmax: ',sv%itmax
write(iout_,*) ' eps: ',sv%eps
write(iout_,*) ' fillin: ',sv%fillin
call psb_erractionrestore(err_act)
return
9999 call psb_error_handler(err_act)
return
end subroutine d_rkr_solver_descr
subroutine d_rkr_solver_cnv(sv,info,amold,vmold,imold)
implicit none
class(amg_d_rkr_solver_type), intent(inout) :: sv
integer(psb_ipk_), intent(out) :: info
class(psb_d_base_sparse_mat), intent(in), optional :: amold
class(psb_d_base_vect_type), intent(in), optional :: vmold
class(psb_i_base_vect_type), intent(in), optional :: imold
call sv%prec%cnv(info,amold=amold,vmold=vmold,imold=imold)
end subroutine d_rkr_solver_cnv
subroutine d_rkr_solver_clone(sv,svout,info)
Implicit None
! Arguments
class(amg_d_rkr_solver_type), intent(inout) :: sv
class(amg_d_base_solver_type), allocatable, intent(inout) :: svout
integer(psb_ipk_), intent(out) :: info
info = psb_success_
call svout%free(info)
allocate(svout,stat=info,mold=sv)
select type(so=>svout)
class is(amg_d_rkr_solver_type)
so%method = sv%method
so%kprec = sv%kprec
so%sub_solve = sv%sub_solve
so%i_sub_solve = sv%i_sub_solve
so%fillin = sv%fillin
so%irst = sv%irst
so%istopc = sv%istopc
so%itmax = sv%itmax
so%itrace = sv%itrace
so%global = sv%global
so%eps = sv%eps
call sv%a_local%clone(so%a_local,info)
call sv%desc_local%clone(so%desc_local,info)
call sv%prec%clone(so%prec,info)
class default
info = psb_err_internal_error_
end select
end subroutine d_rkr_solver_clone
subroutine d_rkr_solver_clone_settings(sv,svout,info)
Implicit None
! Arguments
class(amg_d_rkr_solver_type), intent(inout) :: sv
class(amg_d_base_solver_type), intent(inout) :: svout
integer(psb_ipk_), intent(out) :: info
info = psb_success_
select type(so=>svout)
class is(amg_d_rkr_solver_type)
so%method = sv%method
so%kprec = sv%kprec
so%sub_solve = sv%sub_solve
so%i_sub_solve = sv%i_sub_solve
so%fillin = sv%fillin
so%irst = sv%irst
so%istopc = sv%istopc
so%itmax = sv%itmax
so%itrace = sv%itrace
so%global = sv%global
so%eps = sv%eps
class default
info = psb_err_internal_error_
end select
end subroutine d_rkr_solver_clone_settings
subroutine d_rkr_solver_dmp(sv,desc,level,info,prefix,head,solver,global_num)
implicit none
class(amg_d_rkr_solver_type), intent(in) :: sv
type(psb_desc_type), intent(in) :: desc
integer(psb_ipk_), intent(in) :: level
integer(psb_ipk_), intent(out) :: info
character(len=*), intent(in), optional :: prefix, head
logical, optional, intent(in) :: solver, global_num
call sv%prec%dump(info,prefix=prefix,head=head)
end subroutine d_rkr_solver_dmp
!
! Notify whether RKR is used as a global solver
!
function d_rkr_solver_is_global(sv) result(val)
implicit none
class(amg_d_rkr_solver_type), intent(in) :: sv
logical :: val
val = (sv%global)
end function d_rkr_solver_is_global
!
function d_rkr_solver_is_iterative() result(val)
implicit none
logical :: val
val = .true.
end function d_rkr_solver_is_iterative
end module amg_d_rkr_solver

590
amgprec/amg_s_rkr_solver.f90
Unescape Escape View File

@ -0,0 +1,590 @@
!
!
! AMG4PSBLAS version 1.0
! Algebraic Multigrid Package
! based on PSBLAS (Parallel Sparse BLAS version 3.5)
!
! (C) Copyright 2020
!
! 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 MLD2P4 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 MLD2P4 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_s_rkr_solver_mod.f90
!
! Module: amg_s_rkr_solver_mod
!
module amg_s_rkr_solver
use amg_s_base_solver_mod
use amg_s_prec_type
type, extends(amg_s_base_solver_type) :: amg_s_rkr_solver_type
!
logical :: global
character(len=16) :: method, kprec, sub_solve
integer(psb_ipk_) :: irst, istopc, itmax, itrace, i_sub_solve
integer(psb_ipk_) :: fillin
real(psb_spk_) :: eps
type(amg_sprec_type) :: prec
type(psb_desc_type) :: desc_local
type(psb_sspmat_type) :: a_local
type(psb_s_vect_type) :: x_local, z_local
type(psb_sspmat_type), pointer :: a=>null()
contains
!
!
procedure, pass(sv) :: dump => s_rkr_solver_dmp
procedure, pass(sv) :: check => s_rkr_solver_check
procedure, pass(sv) :: clone => s_rkr_solver_clone
procedure, pass(sv) :: clone_settings => s_rkr_solver_clone_settings
procedure, pass(sv) :: cnv => s_rkr_solver_cnv
procedure, pass(sv) :: apply_v => amg_s_rkr_solver_apply_vect
procedure, pass(sv) :: apply_a => amg_s_rkr_solver_apply
procedure, pass(sv) :: clear_data => s_rkr_solver_clear_data
procedure, pass(sv) :: free => s_rkr_solver_free
procedure, pass(sv) :: cseti => s_rkr_solver_cseti
procedure, pass(sv) :: csetc => s_rkr_solver_csetc
procedure, pass(sv) :: csetr => s_rkr_solver_csetr
procedure, pass(sv) :: sizeof => s_rkr_solver_sizeof
procedure, pass(sv) :: get_nzeros => s_rkr_solver_get_nzeros
!procedure, nopass :: get_id => s_rkr_solver_get_id
procedure, pass(sv) :: is_global => s_rkr_solver_is_global
procedure, nopass :: is_iterative => s_rkr_solver_is_iterative
!
! These methods are specific for the new solver type
! and therefore need to be overridden
!
procedure, pass(sv) :: descr => s_rkr_solver_descr
procedure, pass(sv) :: default => s_rkr_solver_default
procedure, pass(sv) :: build => amg_s_rkr_solver_bld
procedure, nopass :: get_fmt => s_rkr_solver_get_fmt
end type amg_s_rkr_solver_type
private :: s_rkr_solver_get_fmt, s_rkr_solver_descr, s_rkr_solver_default
interface
subroutine amg_s_rkr_solver_apply_vect(alpha,sv,x,beta,y,desc_data,&
& trans,work,wv,info,init,initu)
import :: psb_desc_type, amg_s_rkr_solver_type, psb_s_vect_type, psb_spk_, &
& psb_sspmat_type, psb_s_base_sparse_mat, psb_s_base_vect_type, psb_ipk_
implicit none
type(psb_desc_type), intent(in) :: desc_data
class(amg_s_rkr_solver_type), intent(inout) :: sv
type(psb_s_vect_type),intent(inout) :: x
type(psb_s_vect_type),intent(inout) :: y
real(psb_spk_),intent(in) :: alpha,beta
character(len=1),intent(in) :: trans
real(psb_spk_),target, intent(inout) :: work(:)
type(psb_s_vect_type),intent(inout) :: wv(:)
integer(psb_ipk_), intent(out) :: info
character, intent(in), optional :: init
type(psb_s_vect_type),intent(inout), optional :: initu
end subroutine amg_s_rkr_solver_apply_vect
end interface
interface
subroutine amg_s_rkr_solver_apply(alpha,sv,x,beta,y,desc_data,&
& trans,work,info,init,initu)
import :: psb_desc_type, amg_s_rkr_solver_type, psb_s_vect_type, psb_spk_, &
& psb_sspmat_type, psb_s_base_sparse_mat, psb_s_base_vect_type, psb_ipk_
implicit none
type(psb_desc_type), intent(in) :: desc_data
class(amg_s_rkr_solver_type), intent(inout) :: sv
real(psb_spk_),intent(inout) :: x(:)
real(psb_spk_),intent(inout) :: y(:)
real(psb_spk_),intent(in) :: alpha,beta
character(len=1),intent(in) :: trans
real(psb_spk_),target, intent(inout) :: work(:)
integer(psb_ipk_), intent(out) :: info
character, intent(in), optional :: init
real(psb_spk_),intent(inout), optional :: initu(:)
end subroutine amg_s_rkr_solver_apply
end interface
interface
subroutine amg_s_rkr_solver_bld(a,desc_a,sv,info,b,amold,vmold,imold)
import :: psb_desc_type, amg_s_rkr_solver_type, psb_s_vect_type, psb_spk_, &
& psb_sspmat_type, psb_s_base_sparse_mat, psb_s_base_vect_type,&
& psb_ipk_, psb_i_base_vect_type
implicit none
type(psb_sspmat_type), intent(in), target :: a
Type(psb_desc_type), Intent(inout) :: desc_a
class(amg_s_rkr_solver_type), intent(inout) :: sv
integer(psb_ipk_), intent(out) :: info
type(psb_sspmat_type), intent(in), target, optional :: b
class(psb_s_base_sparse_mat), intent(in), optional :: amold
class(psb_s_base_vect_type), intent(in), optional :: vmold
class(psb_i_base_vect_type), intent(in), optional :: imold
end subroutine amg_s_rkr_solver_bld
end interface
contains
!
!
subroutine s_rkr_solver_default(sv)
Implicit None
! Arguments
class(amg_s_rkr_solver_type), intent(inout) :: sv
sv%method = 'bicgstab'
sv%kprec = 'bjac'
sv%sub_solve = 'ilu'
sv%i_sub_solve = -1
sv%fillin = 1
sv%irst = 30
sv%istopc = 2
sv%itmax = 40
sv%itrace = -1
sv%eps = 1.d-6
sv%global = .false.
return
end subroutine s_rkr_solver_default
function s_rkr_solver_get_nzeros(sv) result(val)
implicit none
! Arguments
class(amg_s_rkr_solver_type), intent(in) :: sv
integer(psb_epk_) :: val
val = sv%prec%get_nzeros()
return
end function s_rkr_solver_get_nzeros
function s_rkr_solver_sizeof(sv) result(val)
implicit none
! Arguments
class(amg_s_rkr_solver_type), intent(in) :: sv
integer(psb_epk_) :: val
val = sv%prec%sizeof() + sv%desc_local%sizeof() + sv%a_local%sizeof()
return
end function s_rkr_solver_sizeof
subroutine s_rkr_solver_check(sv,info)
Implicit None
! Arguments
class(amg_s_rkr_solver_type), intent(inout) :: sv
integer(psb_ipk_), intent(out) :: info
integer(psb_ipk_) :: err_act
character(len=20) :: name='s_rkr_solver_check'
call psb_erractionsave(err_act)
info = psb_success_
if (info /= psb_success_) goto 9999
call psb_erractionrestore(err_act)
return
9999 call psb_error_handler(err_act)
return
end subroutine s_rkr_solver_check
subroutine s_rkr_solver_cseti(sv,what,val,info,idx)
Implicit None
! Arguments
class(amg_s_rkr_solver_type), intent(inout) :: sv
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
character(len=20) :: name='s_rkr_solver_cseti'
info = psb_success_
call psb_erractionsave(err_act)
select case(psb_toupper(trim(what)))
case('RKR_IRST')
sv%irst = val
case('RKR_ISTOPC')
sv%istopc = val
case('RKR_ITMAX')
sv%itmax = val
case('RKR_ITRACE')
sv%itrace = val
case('RKR_SUB_SOLVE')
sv%i_sub_solve = val
case('RKR_FILLIN')
sv%fillin = val
case default
call sv%amg_s_base_solver_type%set(what,val,info,idx=idx)
end select
call psb_erractionrestore(err_act)
return
9999 call psb_error_handler(err_act)
return
end subroutine s_rkr_solver_cseti
subroutine s_rkr_solver_csetc(sv,what,val,info,idx)
Implicit None
! Arguments
class(amg_s_rkr_solver_type), intent(inout) :: sv
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, ival
character(len=20) :: name='s_rkr_solver_csetc'
info = psb_success_
call psb_erractionsave(err_act)
select case(psb_toupper(trim(what)))
case('RKR_METHOD')
sv%method = psb_toupper(trim(val))
case('RKR_KPREC')
sv%kprec = psb_toupper(trim(val))
case('RKR_SUB_SOLVE')
sv%sub_solve = psb_toupper(trim(val))
case('RKR_GLOBAL')
select case(psb_toupper(trim(val)))
case('LOCAL','FALSE')
sv%global = .false.
case('GLOBAL','TRUE')
sv%global =.true.
end select
case default
call sv%amg_s_base_solver_type%set(what,val,info,idx=idx)
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 call psb_error_handler(err_act)
return
end subroutine s_rkr_solver_csetc
subroutine s_rkr_solver_csetr(sv,what,val,info,idx)
Implicit None
! Arguments
class(amg_s_rkr_solver_type), intent(inout) :: sv
character(len=*), intent(in) :: what
real(psb_spk_), intent(in) :: val
integer(psb_ipk_), intent(out) :: info
integer(psb_ipk_), intent(in), optional :: idx
integer(psb_ipk_) :: err_act
character(len=20) :: name='s_rkr_solver_csetr'
call psb_erractionsave(err_act)
info = psb_success_
select case(psb_toupper(what))
case('RKR_EPS')
sv%eps = val
case default
call sv%amg_s_base_solver_type%set(what,val,info,idx=idx)
end select
call psb_erractionrestore(err_act)
return
9999 call psb_error_handler(err_act)
return
end subroutine s_rkr_solver_csetr
subroutine s_rkr_solver_clear_data(sv,info)
use psb_base_mod, only : psb_exit
Implicit None
! Arguments
class(amg_s_rkr_solver_type), intent(inout) :: sv
integer(psb_ipk_), intent(out) :: info
integer(psb_ipk_) :: err_act
type(psb_ctxt_type) :: l_ctxt
character(len=20) :: name='s_rkr_solver_free'
call psb_erractionsave(err_act)
info = psb_success_
call sv%prec%free(info)
call sv%a_local%free()
call sv%x_local%free(info)
call sv%z_local%free(info)
if ((.not.sv%global).and.sv%desc_local%is_ok()) then
l_ctxt=sv%desc_local%get_context()
call psb_exit(l_ctxt,close=.false.)
end if
call sv%desc_local%free(info)
nullify(sv%a)
call psb_erractionrestore(err_act)
return
end subroutine s_rkr_solver_clear_data
subroutine s_rkr_solver_free(sv,info)
use psb_base_mod, only : psb_exit
Implicit None
! Arguments
class(amg_s_rkr_solver_type), intent(inout) :: sv
integer(psb_ipk_), intent(out) :: info
integer(psb_ipk_) :: err_act
type(psb_ctxt_type) :: l_ctxt
character(len=20) :: name='s_rkr_solver_free'
call psb_erractionsave(err_act)
info = psb_success_
call sv%clear_data(info)
call psb_erractionrestore(err_act)
return
end subroutine s_rkr_solver_free
function s_rkr_solver_get_fmt() result(val)
implicit none
character(len=32) :: val
val = "RKR solver"
end function s_rkr_solver_get_fmt
subroutine s_rkr_solver_descr(sv,info,iout,coarse)
Implicit None
! Arguments
class(amg_s_rkr_solver_type), intent(in) :: sv
integer(psb_ipk_), intent(out) :: info
integer(psb_ipk_), intent(in), optional :: iout
logical, intent(in), optional :: coarse
! Local variables
integer(psb_ipk_) :: err_act
character(len=20), parameter :: name='amg_s_rkr_solver_descr'
integer(psb_ipk_) :: iout_
call psb_erractionsave(err_act)
info = psb_success_
if (present(iout)) then
iout_ = iout
else
iout_ = psb_out_unit
endif
if (sv%global) then
write(iout_,*) ' Recursive Krylov solver (global)'
else
write(iout_,*) ' Recursive Krylov solver (local) '
end if
write(iout_,*) ' method: ',sv%method
write(iout_,*) ' kprec: ',sv%kprec
if (sv%i_sub_solve > 0) then
write(iout_,*) ' sub_solve: ',amg_fact_names(sv%i_sub_solve)
else
write(iout_,*) ' sub_solve: ',sv%sub_solve
end if
write(iout_,*) ' itmax: ',sv%itmax
write(iout_,*) ' eps: ',sv%eps
write(iout_,*) ' fillin: ',sv%fillin
call psb_erractionrestore(err_act)
return
9999 call psb_error_handler(err_act)
return
end subroutine s_rkr_solver_descr
subroutine s_rkr_solver_cnv(sv,info,amold,vmold,imold)
implicit none
class(amg_s_rkr_solver_type), intent(inout) :: sv
integer(psb_ipk_), intent(out) :: info
class(psb_s_base_sparse_mat), intent(in), optional :: amold
class(psb_s_base_vect_type), intent(in), optional :: vmold
class(psb_i_base_vect_type), intent(in), optional :: imold
call sv%prec%cnv(info,amold=amold,vmold=vmold,imold=imold)
end subroutine s_rkr_solver_cnv
subroutine s_rkr_solver_clone(sv,svout,info)
Implicit None
! Arguments
class(amg_s_rkr_solver_type), intent(inout) :: sv
class(amg_s_base_solver_type), allocatable, intent(inout) :: svout
integer(psb_ipk_), intent(out) :: info
info = psb_success_
call svout%free(info)
allocate(svout,stat=info,mold=sv)
select type(so=>svout)
class is(amg_s_rkr_solver_type)
so%method = sv%method
so%kprec = sv%kprec
so%sub_solve = sv%sub_solve
so%i_sub_solve = sv%i_sub_solve
so%fillin = sv%fillin
so%irst = sv%irst
so%istopc = sv%istopc
so%itmax = sv%itmax
so%itrace = sv%itrace
so%global = sv%global
so%eps = sv%eps
call sv%a_local%clone(so%a_local,info)
call sv%desc_local%clone(so%desc_local,info)
call sv%prec%clone(so%prec,info)
class default
info = psb_err_internal_error_
end select
end subroutine s_rkr_solver_clone
subroutine s_rkr_solver_clone_settings(sv,svout,info)
Implicit None
! Arguments
class(amg_s_rkr_solver_type), intent(inout) :: sv
class(amg_s_base_solver_type), intent(inout) :: svout
integer(psb_ipk_), intent(out) :: info
info = psb_success_
select type(so=>svout)
class is(amg_s_rkr_solver_type)
so%method = sv%method
so%kprec = sv%kprec
so%sub_solve = sv%sub_solve
so%i_sub_solve = sv%i_sub_solve
so%fillin = sv%fillin
so%irst = sv%irst
so%istopc = sv%istopc
so%itmax = sv%itmax
so%itrace = sv%itrace
so%global = sv%global
so%eps = sv%eps
class default
info = psb_err_internal_error_
end select
end subroutine s_rkr_solver_clone_settings
subroutine s_rkr_solver_dmp(sv,desc,level,info,prefix,head,solver,global_num)
implicit none
class(amg_s_rkr_solver_type), intent(in) :: sv
type(psb_desc_type), intent(in) :: desc
integer(psb_ipk_), intent(in) :: level
integer(psb_ipk_), intent(out) :: info
character(len=*), intent(in), optional :: prefix, head
logical, optional, intent(in) :: solver, global_num
call sv%prec%dump(info,prefix=prefix,head=head)
end subroutine s_rkr_solver_dmp
!
! Notify whether RKR is used as a global solver
!
function s_rkr_solver_is_global(sv) result(val)
implicit none
class(amg_s_rkr_solver_type), intent(in) :: sv
logical :: val
val = (sv%global)
end function s_rkr_solver_is_global
!
function s_rkr_solver_is_iterative() result(val)
implicit none
logical :: val
val = .true.
end function s_rkr_solver_is_iterative
end module amg_s_rkr_solver

590
amgprec/amg_z_rkr_solver.f90
Unescape Escape View File

@ -0,0 +1,590 @@
!
!
! AMG4PSBLAS version 1.0
! Algebraic Multigrid Package
! based on PSBLAS (Parallel Sparse BLAS version 3.5)
!
! (C) Copyright 2020
!
! 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 MLD2P4 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 MLD2P4 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_z_rkr_solver_mod.f90
!
! Module: amg_z_rkr_solver_mod
!
module amg_z_rkr_solver
use amg_z_base_solver_mod
use amg_z_prec_type
type, extends(amg_z_base_solver_type) :: amg_z_rkr_solver_type
!
logical :: global
character(len=16) :: method, kprec, sub_solve
integer(psb_ipk_) :: irst, istopc, itmax, itrace, i_sub_solve
integer(psb_ipk_) :: fillin
real(psb_dpk_) :: eps
type(amg_zprec_type) :: prec
type(psb_desc_type) :: desc_local
type(psb_zspmat_type) :: a_local
type(psb_z_vect_type) :: x_local, z_local
type(psb_zspmat_type), pointer :: a=>null()
contains
!
!
procedure, pass(sv) :: dump => z_rkr_solver_dmp
procedure, pass(sv) :: check => z_rkr_solver_check
procedure, pass(sv) :: clone => z_rkr_solver_clone
procedure, pass(sv) :: clone_settings => z_rkr_solver_clone_settings
procedure, pass(sv) :: cnv => z_rkr_solver_cnv
procedure, pass(sv) :: apply_v => amg_z_rkr_solver_apply_vect
procedure, pass(sv) :: apply_a => amg_z_rkr_solver_apply
procedure, pass(sv) :: clear_data => z_rkr_solver_clear_data
procedure, pass(sv) :: free => z_rkr_solver_free
procedure, pass(sv) :: cseti => z_rkr_solver_cseti
procedure, pass(sv) :: csetc => z_rkr_solver_csetc
procedure, pass(sv) :: csetr => z_rkr_solver_csetr
procedure, pass(sv) :: sizeof => z_rkr_solver_sizeof
procedure, pass(sv) :: get_nzeros => z_rkr_solver_get_nzeros
!procedure, nopass :: get_id => z_rkr_solver_get_id
procedure, pass(sv) :: is_global => z_rkr_solver_is_global
procedure, nopass :: is_iterative => z_rkr_solver_is_iterative
!
! These methods are specific for the new solver type
! and therefore need to be overridden
!
procedure, pass(sv) :: descr => z_rkr_solver_descr
procedure, pass(sv) :: default => z_rkr_solver_default
procedure, pass(sv) :: build => amg_z_rkr_solver_bld
procedure, nopass :: get_fmt => z_rkr_solver_get_fmt
end type amg_z_rkr_solver_type
private :: z_rkr_solver_get_fmt, z_rkr_solver_descr, z_rkr_solver_default
interface
subroutine amg_z_rkr_solver_apply_vect(alpha,sv,x,beta,y,desc_data,&
& trans,work,wv,info,init,initu)
import :: psb_desc_type, amg_z_rkr_solver_type, psb_z_vect_type, psb_dpk_, &
& psb_zspmat_type, psb_z_base_sparse_mat, psb_z_base_vect_type, psb_ipk_
implicit none
type(psb_desc_type), intent(in) :: desc_data
class(amg_z_rkr_solver_type), intent(inout) :: sv
type(psb_z_vect_type),intent(inout) :: x
type(psb_z_vect_type),intent(inout) :: y
complex(psb_dpk_),intent(in) :: alpha,beta
character(len=1),intent(in) :: trans
complex(psb_dpk_),target, intent(inout) :: work(:)
type(psb_z_vect_type),intent(inout) :: wv(:)
integer(psb_ipk_), intent(out) :: info
character, intent(in), optional :: init
type(psb_z_vect_type),intent(inout), optional :: initu
end subroutine amg_z_rkr_solver_apply_vect
end interface
interface
subroutine amg_z_rkr_solver_apply(alpha,sv,x,beta,y,desc_data,&
& trans,work,info,init,initu)
import :: psb_desc_type, amg_z_rkr_solver_type, psb_z_vect_type, psb_dpk_, &
& psb_zspmat_type, psb_z_base_sparse_mat, psb_z_base_vect_type, psb_ipk_
implicit none
type(psb_desc_type), intent(in) :: desc_data
class(amg_z_rkr_solver_type), intent(inout) :: sv
complex(psb_dpk_),intent(inout) :: x(:)
complex(psb_dpk_),intent(inout) :: y(:)
complex(psb_dpk_),intent(in) :: alpha,beta
character(len=1),intent(in) :: trans
complex(psb_dpk_),target, intent(inout) :: work(:)
integer(psb_ipk_), intent(out) :: info
character, intent(in), optional :: init
complex(psb_dpk_),intent(inout), optional :: initu(:)
end subroutine amg_z_rkr_solver_apply
end interface
interface
subroutine amg_z_rkr_solver_bld(a,desc_a,sv,info,b,amold,vmold,imold)
import :: psb_desc_type, amg_z_rkr_solver_type, psb_z_vect_type, psb_dpk_, &
& psb_zspmat_type, psb_z_base_sparse_mat, psb_z_base_vect_type,&
& psb_ipk_, psb_i_base_vect_type
implicit none
type(psb_zspmat_type), intent(in), target :: a
Type(psb_desc_type), Intent(inout) :: desc_a
class(amg_z_rkr_solver_type), intent(inout) :: sv
integer(psb_ipk_), intent(out) :: info
type(psb_zspmat_type), intent(in), target, optional :: b
class(psb_z_base_sparse_mat), intent(in), optional :: amold
class(psb_z_base_vect_type), intent(in), optional :: vmold
class(psb_i_base_vect_type), intent(in), optional :: imold
end subroutine amg_z_rkr_solver_bld
end interface
contains
!
!
subroutine z_rkr_solver_default(sv)
Implicit None
! Arguments
class(amg_z_rkr_solver_type), intent(inout) :: sv
sv%method = 'bicgstab'
sv%kprec = 'bjac'
sv%sub_solve = 'ilu'
sv%i_sub_solve = -1
sv%fillin = 1
sv%irst = 30
sv%istopc = 2
sv%itmax = 40
sv%itrace = -1
sv%eps = 1.d-6
sv%global = .false.
return
end subroutine z_rkr_solver_default
function z_rkr_solver_get_nzeros(sv) result(val)
implicit none
! Arguments
class(amg_z_rkr_solver_type), intent(in) :: sv
integer(psb_epk_) :: val
val = sv%prec%get_nzeros()
return
end function z_rkr_solver_get_nzeros
function z_rkr_solver_sizeof(sv) result(val)
implicit none
! Arguments
class(amg_z_rkr_solver_type), intent(in) :: sv
integer(psb_epk_) :: val
val = sv%prec%sizeof() + sv%desc_local%sizeof() + sv%a_local%sizeof()
return
end function z_rkr_solver_sizeof
subroutine z_rkr_solver_check(sv,info)
Implicit None
! Arguments
class(amg_z_rkr_solver_type), intent(inout) :: sv
integer(psb_ipk_), intent(out) :: info
integer(psb_ipk_) :: err_act
character(len=20) :: name='z_rkr_solver_check'
call psb_erractionsave(err_act)
info = psb_success_
if (info /= psb_success_) goto 9999
call psb_erractionrestore(err_act)
return
9999 call psb_error_handler(err_act)
return
end subroutine z_rkr_solver_check
subroutine z_rkr_solver_cseti(sv,what,val,info,idx)
Implicit None
! Arguments
class(amg_z_rkr_solver_type), intent(inout) :: sv
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
character(len=20) :: name='z_rkr_solver_cseti'
info = psb_success_
call psb_erractionsave(err_act)
select case(psb_toupper(trim(what)))
case('RKR_IRST')
sv%irst = val
case('RKR_ISTOPC')
sv%istopc = val
case('RKR_ITMAX')
sv%itmax = val
case('RKR_ITRACE')
sv%itrace = val
case('RKR_SUB_SOLVE')
sv%i_sub_solve = val
case('RKR_FILLIN')
sv%fillin = val
case default
call sv%amg_z_base_solver_type%set(what,val,info,idx=idx)
end select
call psb_erractionrestore(err_act)
return
9999 call psb_error_handler(err_act)
return
end subroutine z_rkr_solver_cseti
subroutine z_rkr_solver_csetc(sv,what,val,info,idx)
Implicit None
! Arguments
class(amg_z_rkr_solver_type), intent(inout) :: sv
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, ival
character(len=20) :: name='z_rkr_solver_csetc'
info = psb_success_
call psb_erractionsave(err_act)
select case(psb_toupper(trim(what)))
case('RKR_METHOD')
sv%method = psb_toupper(trim(val))
case('RKR_KPREC')
sv%kprec = psb_toupper(trim(val))
case('RKR_SUB_SOLVE')
sv%sub_solve = psb_toupper(trim(val))
case('RKR_GLOBAL')
select case(psb_toupper(trim(val)))
case('LOCAL','FALSE')
sv%global = .false.
case('GLOBAL','TRUE')
sv%global =.true.
end select
case default
call sv%amg_z_base_solver_type%set(what,val,info,idx=idx)
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 call psb_error_handler(err_act)
return
end subroutine z_rkr_solver_csetc
subroutine z_rkr_solver_csetr(sv,what,val,info,idx)
Implicit None
! Arguments
class(amg_z_rkr_solver_type), intent(inout) :: sv
character(len=*), intent(in) :: what
real(psb_dpk_), intent(in) :: val
integer(psb_ipk_), intent(out) :: info
integer(psb_ipk_), intent(in), optional :: idx
integer(psb_ipk_) :: err_act
character(len=20) :: name='z_rkr_solver_csetr'
call psb_erractionsave(err_act)
info = psb_success_
select case(psb_toupper(what))
case('RKR_EPS')
sv%eps = val
case default
call sv%amg_z_base_solver_type%set(what,val,info,idx=idx)
end select
call psb_erractionrestore(err_act)
return
9999 call psb_error_handler(err_act)
return
end subroutine z_rkr_solver_csetr
subroutine z_rkr_solver_clear_data(sv,info)
use psb_base_mod, only : psb_exit
Implicit None
! Arguments
class(amg_z_rkr_solver_type), intent(inout) :: sv
integer(psb_ipk_), intent(out) :: info
integer(psb_ipk_) :: err_act
type(psb_ctxt_type) :: l_ctxt
character(len=20) :: name='z_rkr_solver_free'
call psb_erractionsave(err_act)
info = psb_success_
call sv%prec%free(info)
call sv%a_local%free()
call sv%x_local%free(info)
call sv%z_local%free(info)
if ((.not.sv%global).and.sv%desc_local%is_ok()) then
l_ctxt=sv%desc_local%get_context()
call psb_exit(l_ctxt,close=.false.)
end if
call sv%desc_local%free(info)
nullify(sv%a)
call psb_erractionrestore(err_act)
return
end subroutine z_rkr_solver_clear_data
subroutine z_rkr_solver_free(sv,info)
use psb_base_mod, only : psb_exit
Implicit None
! Arguments
class(amg_z_rkr_solver_type), intent(inout) :: sv
integer(psb_ipk_), intent(out) :: info
integer(psb_ipk_) :: err_act
type(psb_ctxt_type) :: l_ctxt
character(len=20) :: name='z_rkr_solver_free'
call psb_erractionsave(err_act)
info = psb_success_
call sv%clear_data(info)
call psb_erractionrestore(err_act)
return
end subroutine z_rkr_solver_free
function z_rkr_solver_get_fmt() result(val)
implicit none
character(len=32) :: val
val = "RKR solver"
end function z_rkr_solver_get_fmt
subroutine z_rkr_solver_descr(sv,info,iout,coarse)
Implicit None
! Arguments
class(amg_z_rkr_solver_type), intent(in) :: sv
integer(psb_ipk_), intent(out) :: info
integer(psb_ipk_), intent(in), optional :: iout
logical, intent(in), optional :: coarse
! Local variables
integer(psb_ipk_) :: err_act
character(len=20), parameter :: name='amg_z_rkr_solver_descr'
integer(psb_ipk_) :: iout_
call psb_erractionsave(err_act)
info = psb_success_
if (present(iout)) then
iout_ = iout
else
iout_ = psb_out_unit
endif
if (sv%global) then
write(iout_,*) ' Recursive Krylov solver (global)'
else
write(iout_,*) ' Recursive Krylov solver (local) '
end if
write(iout_,*) ' method: ',sv%method
write(iout_,*) ' kprec: ',sv%kprec
if (sv%i_sub_solve > 0) then
write(iout_,*) ' sub_solve: ',amg_fact_names(sv%i_sub_solve)
else
write(iout_,*) ' sub_solve: ',sv%sub_solve
end if
write(iout_,*) ' itmax: ',sv%itmax
write(iout_,*) ' eps: ',sv%eps
write(iout_,*) ' fillin: ',sv%fillin
call psb_erractionrestore(err_act)
return
9999 call psb_error_handler(err_act)
return
end subroutine z_rkr_solver_descr
subroutine z_rkr_solver_cnv(sv,info,amold,vmold,imold)
implicit none
class(amg_z_rkr_solver_type), intent(inout) :: sv
integer(psb_ipk_), intent(out) :: info
class(psb_z_base_sparse_mat), intent(in), optional :: amold
class(psb_z_base_vect_type), intent(in), optional :: vmold
class(psb_i_base_vect_type), intent(in), optional :: imold
call sv%prec%cnv(info,amold=amold,vmold=vmold,imold=imold)
end subroutine z_rkr_solver_cnv
subroutine z_rkr_solver_clone(sv,svout,info)
Implicit None
! Arguments
class(amg_z_rkr_solver_type), intent(inout) :: sv
class(amg_z_base_solver_type), allocatable, intent(inout) :: svout
integer(psb_ipk_), intent(out) :: info
info = psb_success_
call svout%free(info)
allocate(svout,stat=info,mold=sv)
select type(so=>svout)
class is(amg_z_rkr_solver_type)
so%method = sv%method
so%kprec = sv%kprec
so%sub_solve = sv%sub_solve
so%i_sub_solve = sv%i_sub_solve
so%fillin = sv%fillin
so%irst = sv%irst
so%istopc = sv%istopc
so%itmax = sv%itmax
so%itrace = sv%itrace
so%global = sv%global
so%eps = sv%eps
call sv%a_local%clone(so%a_local,info)
call sv%desc_local%clone(so%desc_local,info)
call sv%prec%clone(so%prec,info)
class default
info = psb_err_internal_error_
end select
end subroutine z_rkr_solver_clone
subroutine z_rkr_solver_clone_settings(sv,svout,info)
Implicit None
! Arguments
class(amg_z_rkr_solver_type), intent(inout) :: sv
class(amg_z_base_solver_type), intent(inout) :: svout
integer(psb_ipk_), intent(out) :: info
info = psb_success_
select type(so=>svout)
class is(amg_z_rkr_solver_type)
so%method = sv%method
so%kprec = sv%kprec
so%sub_solve = sv%sub_solve
so%i_sub_solve = sv%i_sub_solve
so%fillin = sv%fillin
so%irst = sv%irst
so%istopc = sv%istopc
so%itmax = sv%itmax
so%itrace = sv%itrace
so%global = sv%global
so%eps = sv%eps
class default
info = psb_err_internal_error_
end select
end subroutine z_rkr_solver_clone_settings
subroutine z_rkr_solver_dmp(sv,desc,level,info,prefix,head,solver,global_num)
implicit none
class(amg_z_rkr_solver_type), intent(in) :: sv
type(psb_desc_type), intent(in) :: desc
integer(psb_ipk_), intent(in) :: level
integer(psb_ipk_), intent(out) :: info
character(len=*), intent(in), optional :: prefix, head
logical, optional, intent(in) :: solver, global_num
call sv%prec%dump(info,prefix=prefix,head=head)
end subroutine z_rkr_solver_dmp
!
! Notify whether RKR is used as a global solver
!
function z_rkr_solver_is_global(sv) result(val)
implicit none
class(amg_z_rkr_solver_type), intent(in) :: sv
logical :: val
val = (sv%global)
end function z_rkr_solver_is_global
!
function z_rkr_solver_is_iterative() result(val)
implicit none
logical :: val
val = .true.
end function z_rkr_solver_is_iterative
end module amg_z_rkr_solver

271
amgprec/impl/solver/amg_c_rkr_solver_impl.f90
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@ -0,0 +1,271 @@
!
!
! AMG4PSBLAS version 1.0
! Algebraic Multigrid Package
! based on PSBLAS (Parallel Sparse BLAS version 3.5)
!
! (C) Copyright 2020
!
! 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.
!
!
! File: amg_c_rkr_solver_impl.f90
!
! This is the implementation file corresponding to amg_c_rkr_solver_mod.
!
!
subroutine amg_c_rkr_solver_bld(a,desc_a,sv,info,b,amold,vmold)
use psb_base_mod
use amg_c_rkr_solver, amg_protect_name => amg_c_rkr_solver_bld
Implicit None
! Arguments
type(psb_cspmat_type), intent(inout), target :: a
Type(psb_desc_type), Intent(inout) :: desc_a
class(amg_c_rkr_solver_type), intent(inout) :: sv
integer(psb_ipk_), intent(out) :: info
type(psb_cspmat_type), intent(in), target, optional :: b
class(psb_c_base_sparse_mat), intent(in), optional :: amold
class(psb_c_base_vect_type), intent(in), optional :: vmold
! Local variables
integer(psb_ipk_) :: n_row,n_col, nrow_a, nztota
integer(psb_lpk_) :: lnr
integer(psb_ipk_) :: np,me,i, err_act, debug_unit, debug_level
type(psb_ctxt_type) :: ctxt, l_ctxt
character(len=20) :: name='c_rkr_solver_bld', ch_err
info=psb_success_
call psb_erractionsave(err_act)
debug_unit = psb_get_debug_unit()
debug_level = psb_get_debug_level()
ctxt = desc_a%get_context()
call psb_info(ctxt, me, np)
if (debug_level >= psb_debug_outer_) &
& write(debug_unit,*) me,' ',trim(name),' start'
call sv%prec%free(info)
if (sv%global) then
call sv%prec%init(ctxt,sv%kprec,info)
if (sv%i_sub_solve>0) then
call sv%prec%set('sub_solve',sv%i_sub_solve,info)
else
call sv%prec%set('sub_solve',sv%sub_solve,info)
end if
call sv%prec%set('sub_fillin',sv%fillin,info)
call sv%prec%hierarchy_build(a,desc_a,info)
call sv%prec%smoothers_build(a,desc_a,info,amold=amold,vmold=vmold)
sv%a => a
else
call psb_init(l_ctxt,np=1_psb_ipk_,basectxt=ctxt,ids=(/me/))
n_row = desc_a%get_local_rows()
lnr = n_row
call psb_cdall(l_ctxt,sv%desc_local,info,mg=lnr,repl=.true.)
call psb_cdasb(sv%desc_local,info)
call sv%prec%init(l_ctxt,sv%kprec,info)
!This is a gigantic kludge, to be revised
if (sv%i_sub_solve>0) then
call sv%prec%set('sub_solve',sv%i_sub_solve,info)
else
call sv%prec%set('sub_solve',sv%sub_solve,info)
end if
call sv%prec%set('sub_fillin',sv%fillin,info)
call a%csclip(sv%a_local,info,jmax=n_row)
call sv%prec%hierarchy_build(sv%a_local,sv%desc_local,info)
call sv%prec%smoothers_build(sv%a_local,sv%desc_local,info,amold=amold,vmold=vmold)
call psb_geall(sv%x_local,sv%desc_local,info)
call sv%x_local%zero()
call psb_geasb(sv%x_local,sv%desc_local,info,mold=vmold)
call psb_geall(sv%z_local,sv%desc_local,info)
call sv%z_local%zero()
call psb_geasb(sv%z_local,sv%desc_local,info,mold=vmold)
end if
if(info /= psb_success_) then
info=psb_err_from_subroutine_
ch_err='inner precbld'
call psb_errpush(info,name,a_err=ch_err)
goto 9999
end if
if (debug_level >= psb_debug_outer_) &
& write(debug_unit,*) me,' ',trim(name),' end'
call psb_erractionrestore(err_act)
return
9999 call psb_error_handler(err_act)
return
end subroutine amg_c_rkr_solver_bld
subroutine amg_c_rkr_solver_apply_vect(alpha,sv,x,beta,y,desc_data,&
& trans,work,wv,info,init,initu)
use psb_base_mod
use psb_krylov_mod
use amg_c_rkr_solver, amg_protect_name => amg_c_rkr_solver_apply_vect
Implicit None
type(psb_desc_type), intent(in) :: desc_data
class(amg_c_rkr_solver_type), intent(inout) :: sv
type(psb_c_vect_type),intent(inout) :: x
type(psb_c_vect_type),intent(inout) :: y
complex(psb_spk_),intent(in) :: alpha,beta
character(len=1),intent(in) :: trans
complex(psb_spk_),target, intent(inout) :: work(:)
type(psb_c_vect_type),intent(inout) :: wv(:)
integer(psb_ipk_), intent(out) :: info
character, intent(in), optional :: init
type(psb_c_vect_type),intent(inout), optional :: initu
type(psb_c_vect_type) :: z
integer(psb_ipk_) :: np,me,i, err_act, debug_unit, debug_level
type(psb_ctxt_type) :: ctxt
character(len=20) :: name='c_rkr_solver_apply_v', ch_err
info=psb_success_
call psb_erractionsave(err_act)
debug_unit = psb_get_debug_unit()
debug_level = psb_get_debug_level()
ctxt = desc_data%get_context()
call psb_info(ctxt, me, np)
if (debug_level >= psb_debug_outer_) &
& write(debug_unit,*) me,' ',trim(name),' start'
if (sv%global) then
call psb_geall(z,desc_data,info)
call z%zero()
call psb_geasb(z,desc_data,info,mold=x%v)
if (debug_level >= psb_debug_outer_) &
& write(debug_unit,*) me,' ',trim(name),' norms ',&
& psb_genrm2(x,desc_data,info),psb_genrm2(y,desc_data,info),&
& psb_genrm2(z,desc_data,info)
call psb_krylov(sv%method,sv%a,sv%prec,x,z,sv%eps,&
& desc_data,info,itmax=sv%itmax,itrace=sv%itrace,&
& istop=sv%istopc,irst=sv%irst)
!!$ call sv%prec%apply(x,z,desc_data,info,trans=trans,work=work)
call psb_geaxpby(alpha,z,beta,y,desc_data,info)
else
call psb_geaxpby(cone,x,czero,sv%x_local,sv%desc_local,info)
call psb_krylov(sv%method,sv%a_local,sv%prec,sv%x_local,sv%z_local,sv%eps,&
& sv%desc_local,info,itmax=sv%itmax,itrace=sv%itrace,&
& istop=sv%istopc,irst=sv%irst)
call psb_geaxpby(alpha,sv%z_local,beta,y,sv%desc_local,info)
end if
call psb_erractionrestore(err_act)
return
9999 call psb_error_handler(err_act)
return
end subroutine amg_c_rkr_solver_apply_vect
subroutine amg_c_rkr_solver_apply(alpha,sv,x,beta,y,desc_data,&
& trans,work,info,init,initu)
use psb_base_mod
use amg_c_rkr_solver, amg_protect_name => amg_c_rkr_solver_apply
implicit none
type(psb_desc_type), intent(in) :: desc_data
class(amg_c_rkr_solver_type), intent(inout) :: sv
complex(psb_spk_),intent(inout) :: x(:)
complex(psb_spk_),intent(inout) :: y(:)
complex(psb_spk_),intent(in) :: alpha,beta
character(len=1),intent(in) :: trans
complex(psb_spk_),target, intent(inout) :: work(:)
integer(psb_ipk_), intent(out) :: info
character, intent(in), optional :: init
complex(psb_spk_),intent(inout), optional :: initu(:)
complex(psb_spk_), allocatable :: z(:)
integer(psb_ipk_) :: np,me,i, err_act, debug_unit, debug_level
type(psb_ctxt_type) :: ctxt
character(len=20) :: name='c_rkr_solver_apply', ch_err
info=psb_success_
call psb_erractionsave(err_act)
debug_unit = psb_get_debug_unit()
debug_level = psb_get_debug_level()
ctxt = desc_data%get_context()
call psb_info(ctxt, me, np)
if (debug_level >= psb_debug_outer_) &
& write(debug_unit,*) me,' ',trim(name),' start'
call psb_geasb(z,desc_data,info,scratch=.true.)
call sv%prec%apply(x,z,desc_data,info,trans=trans,work=work)
call psb_geaxpby(alpha,z,beta,y,desc_data,info)
call psb_erractionrestore(err_act)
return
9999 call psb_error_handler(err_act)
return
end subroutine amg_c_rkr_solver_apply

271
amgprec/impl/solver/amg_d_rkr_solver_impl.f90
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@ -0,0 +1,271 @@
!
!
! AMG4PSBLAS version 1.0
! Algebraic Multigrid Package
! based on PSBLAS (Parallel Sparse BLAS version 3.5)
!
! (C) Copyright 2020
!
! 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.
!
!
! File: amg_d_rkr_solver_impl.f90
!
! This is the implementation file corresponding to amg_d_rkr_solver_mod.
!
!
subroutine amg_d_rkr_solver_bld(a,desc_a,sv,info,b,amold,vmold)
use psb_base_mod
use amg_d_rkr_solver, amg_protect_name => amg_d_rkr_solver_bld
Implicit None
! Arguments
type(psb_dspmat_type), intent(inout), target :: a
Type(psb_desc_type), Intent(inout) :: desc_a
class(amg_d_rkr_solver_type), intent(inout) :: sv
integer(psb_ipk_), intent(out) :: info
type(psb_dspmat_type), intent(in), target, optional :: b
class(psb_d_base_sparse_mat), intent(in), optional :: amold
class(psb_d_base_vect_type), intent(in), optional :: vmold
! Local variables
integer(psb_ipk_) :: n_row,n_col, nrow_a, nztota
integer(psb_lpk_) :: lnr
integer(psb_ipk_) :: np,me,i, err_act, debug_unit, debug_level
type(psb_ctxt_type) :: ctxt, l_ctxt
character(len=20) :: name='d_rkr_solver_bld', ch_err
info=psb_success_
call psb_erractionsave(err_act)
debug_unit = psb_get_debug_unit()
debug_level = psb_get_debug_level()
ctxt = desc_a%get_context()
call psb_info(ctxt, me, np)
if (debug_level >= psb_debug_outer_) &
& write(debug_unit,*) me,' ',trim(name),' start'
call sv%prec%free(info)
if (sv%global) then
call sv%prec%init(ctxt,sv%kprec,info)
if (sv%i_sub_solve>0) then
call sv%prec%set('sub_solve',sv%i_sub_solve,info)
else
call sv%prec%set('sub_solve',sv%sub_solve,info)
end if
call sv%prec%set('sub_fillin',sv%fillin,info)
call sv%prec%hierarchy_build(a,desc_a,info)
call sv%prec%smoothers_build(a,desc_a,info,amold=amold,vmold=vmold)
sv%a => a
else
call psb_init(l_ctxt,np=1_psb_ipk_,basectxt=ctxt,ids=(/me/))
n_row = desc_a%get_local_rows()
lnr = n_row
call psb_cdall(l_ctxt,sv%desc_local,info,mg=lnr,repl=.true.)
call psb_cdasb(sv%desc_local,info)
call sv%prec%init(l_ctxt,sv%kprec,info)
!This is a gigantic kludge, to be revised
if (sv%i_sub_solve>0) then
call sv%prec%set('sub_solve',sv%i_sub_solve,info)
else
call sv%prec%set('sub_solve',sv%sub_solve,info)
end if
call sv%prec%set('sub_fillin',sv%fillin,info)
call a%csclip(sv%a_local,info,jmax=n_row)
call sv%prec%hierarchy_build(sv%a_local,sv%desc_local,info)
call sv%prec%smoothers_build(sv%a_local,sv%desc_local,info,amold=amold,vmold=vmold)
call psb_geall(sv%x_local,sv%desc_local,info)
call sv%x_local%zero()
call psb_geasb(sv%x_local,sv%desc_local,info,mold=vmold)
call psb_geall(sv%z_local,sv%desc_local,info)
call sv%z_local%zero()
call psb_geasb(sv%z_local,sv%desc_local,info,mold=vmold)
end if
if(info /= psb_success_) then
info=psb_err_from_subroutine_
ch_err='inner precbld'
call psb_errpush(info,name,a_err=ch_err)
goto 9999
end if
if (debug_level >= psb_debug_outer_) &
& write(debug_unit,*) me,' ',trim(name),' end'
call psb_erractionrestore(err_act)
return
9999 call psb_error_handler(err_act)
return
end subroutine amg_d_rkr_solver_bld
subroutine amg_d_rkr_solver_apply_vect(alpha,sv,x,beta,y,desc_data,&
& trans,work,wv,info,init,initu)
use psb_base_mod
use psb_krylov_mod
use amg_d_rkr_solver, amg_protect_name => amg_d_rkr_solver_apply_vect
Implicit None
type(psb_desc_type), intent(in) :: desc_data
class(amg_d_rkr_solver_type), intent(inout) :: sv
type(psb_d_vect_type),intent(inout) :: x
type(psb_d_vect_type),intent(inout) :: y
real(psb_dpk_),intent(in) :: alpha,beta
character(len=1),intent(in) :: trans
real(psb_dpk_),target, intent(inout) :: work(:)
type(psb_d_vect_type),intent(inout) :: wv(:)
integer(psb_ipk_), intent(out) :: info
character, intent(in), optional :: init
type(psb_d_vect_type),intent(inout), optional :: initu
type(psb_d_vect_type) :: z
integer(psb_ipk_) :: np,me,i, err_act, debug_unit, debug_level
type(psb_ctxt_type) :: ctxt
character(len=20) :: name='d_rkr_solver_apply_v', ch_err
info=psb_success_
call psb_erractionsave(err_act)
debug_unit = psb_get_debug_unit()
debug_level = psb_get_debug_level()
ctxt = desc_data%get_context()
call psb_info(ctxt, me, np)
if (debug_level >= psb_debug_outer_) &
& write(debug_unit,*) me,' ',trim(name),' start'
if (sv%global) then
call psb_geall(z,desc_data,info)
call z%zero()
call psb_geasb(z,desc_data,info,mold=x%v)
if (debug_level >= psb_debug_outer_) &
& write(debug_unit,*) me,' ',trim(name),' norms ',&
& psb_genrm2(x,desc_data,info),psb_genrm2(y,desc_data,info),&
& psb_genrm2(z,desc_data,info)
call psb_krylov(sv%method,sv%a,sv%prec,x,z,sv%eps,&
& desc_data,info,itmax=sv%itmax,itrace=sv%itrace,&
& istop=sv%istopc,irst=sv%irst)
!!$ call sv%prec%apply(x,z,desc_data,info,trans=trans,work=work)
call psb_geaxpby(alpha,z,beta,y,desc_data,info)
else
call psb_geaxpby(done,x,dzero,sv%x_local,sv%desc_local,info)
call psb_krylov(sv%method,sv%a_local,sv%prec,sv%x_local,sv%z_local,sv%eps,&
& sv%desc_local,info,itmax=sv%itmax,itrace=sv%itrace,&
& istop=sv%istopc,irst=sv%irst)
call psb_geaxpby(alpha,sv%z_local,beta,y,sv%desc_local,info)
end if
call psb_erractionrestore(err_act)
return
9999 call psb_error_handler(err_act)
return
end subroutine amg_d_rkr_solver_apply_vect
subroutine amg_d_rkr_solver_apply(alpha,sv,x,beta,y,desc_data,&
& trans,work,info,init,initu)
use psb_base_mod
use amg_d_rkr_solver, amg_protect_name => amg_d_rkr_solver_apply
implicit none
type(psb_desc_type), intent(in) :: desc_data
class(amg_d_rkr_solver_type), intent(inout) :: sv
real(psb_dpk_),intent(inout) :: x(:)
real(psb_dpk_),intent(inout) :: y(:)
real(psb_dpk_),intent(in) :: alpha,beta
character(len=1),intent(in) :: trans
real(psb_dpk_),target, intent(inout) :: work(:)
integer(psb_ipk_), intent(out) :: info
character, intent(in), optional :: init
real(psb_dpk_),intent(inout), optional :: initu(:)
real(psb_dpk_), allocatable :: z(:)
integer(psb_ipk_) :: np,me,i, err_act, debug_unit, debug_level
type(psb_ctxt_type) :: ctxt
character(len=20) :: name='d_rkr_solver_apply', ch_err
info=psb_success_
call psb_erractionsave(err_act)
debug_unit = psb_get_debug_unit()
debug_level = psb_get_debug_level()
ctxt = desc_data%get_context()
call psb_info(ctxt, me, np)
if (debug_level >= psb_debug_outer_) &
& write(debug_unit,*) me,' ',trim(name),' start'
call psb_geasb(z,desc_data,info,scratch=.true.)
call sv%prec%apply(x,z,desc_data,info,trans=trans,work=work)
call psb_geaxpby(alpha,z,beta,y,desc_data,info)
call psb_erractionrestore(err_act)
return
9999 call psb_error_handler(err_act)
return
end subroutine amg_d_rkr_solver_apply

271
amgprec/impl/solver/amg_s_rkr_solver_impl.f90
Unescape Escape View File

@ -0,0 +1,271 @@
!
!
! AMG4PSBLAS version 1.0
! Algebraic Multigrid Package
! based on PSBLAS (Parallel Sparse BLAS version 3.5)
!
! (C) Copyright 2020
!
! 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.
!
!
! File: amg_s_rkr_solver_impl.f90
!
! This is the implementation file corresponding to amg_s_rkr_solver_mod.
!
!
subroutine amg_s_rkr_solver_bld(a,desc_a,sv,info,b,amold,vmold)
use psb_base_mod
use amg_s_rkr_solver, amg_protect_name => amg_s_rkr_solver_bld
Implicit None
! Arguments
type(psb_sspmat_type), intent(inout), target :: a
Type(psb_desc_type), Intent(inout) :: desc_a
class(amg_s_rkr_solver_type), intent(inout) :: sv
integer(psb_ipk_), intent(out) :: info
type(psb_sspmat_type), intent(in), target, optional :: b
class(psb_s_base_sparse_mat), intent(in), optional :: amold
class(psb_s_base_vect_type), intent(in), optional :: vmold
! Local variables
integer(psb_ipk_) :: n_row,n_col, nrow_a, nztota
integer(psb_lpk_) :: lnr
integer(psb_ipk_) :: np,me,i, err_act, debug_unit, debug_level
type(psb_ctxt_type) :: ctxt, l_ctxt
character(len=20) :: name='s_rkr_solver_bld', ch_err
info=psb_success_
call psb_erractionsave(err_act)
debug_unit = psb_get_debug_unit()
debug_level = psb_get_debug_level()
ctxt = desc_a%get_context()
call psb_info(ctxt, me, np)
if (debug_level >= psb_debug_outer_) &
& write(debug_unit,*) me,' ',trim(name),' start'
call sv%prec%free(info)
if (sv%global) then
call sv%prec%init(ctxt,sv%kprec,info)
if (sv%i_sub_solve>0) then
call sv%prec%set('sub_solve',sv%i_sub_solve,info)
else
call sv%prec%set('sub_solve',sv%sub_solve,info)
end if
call sv%prec%set('sub_fillin',sv%fillin,info)
call sv%prec%hierarchy_build(a,desc_a,info)
call sv%prec%smoothers_build(a,desc_a,info,amold=amold,vmold=vmold)
sv%a => a
else
call psb_init(l_ctxt,np=1_psb_ipk_,basectxt=ctxt,ids=(/me/))
n_row = desc_a%get_local_rows()
lnr = n_row
call psb_cdall(l_ctxt,sv%desc_local,info,mg=lnr,repl=.true.)
call psb_cdasb(sv%desc_local,info)
call sv%prec%init(l_ctxt,sv%kprec,info)
!This is a gigantic kludge, to be revised
if (sv%i_sub_solve>0) then
call sv%prec%set('sub_solve',sv%i_sub_solve,info)
else
call sv%prec%set('sub_solve',sv%sub_solve,info)
end if
call sv%prec%set('sub_fillin',sv%fillin,info)
call a%csclip(sv%a_local,info,jmax=n_row)
call sv%prec%hierarchy_build(sv%a_local,sv%desc_local,info)
call sv%prec%smoothers_build(sv%a_local,sv%desc_local,info,amold=amold,vmold=vmold)
call psb_geall(sv%x_local,sv%desc_local,info)
call sv%x_local%zero()
call psb_geasb(sv%x_local,sv%desc_local,info,mold=vmold)
call psb_geall(sv%z_local,sv%desc_local,info)
call sv%z_local%zero()
call psb_geasb(sv%z_local,sv%desc_local,info,mold=vmold)
end if
if(info /= psb_success_) then
info=psb_err_from_subroutine_
ch_err='inner precbld'
call psb_errpush(info,name,a_err=ch_err)
goto 9999
end if
if (debug_level >= psb_debug_outer_) &
& write(debug_unit,*) me,' ',trim(name),' end'
call psb_erractionrestore(err_act)
return
9999 call psb_error_handler(err_act)
return
end subroutine amg_s_rkr_solver_bld
subroutine amg_s_rkr_solver_apply_vect(alpha,sv,x,beta,y,desc_data,&
& trans,work,wv,info,init,initu)
use psb_base_mod
use psb_krylov_mod
use amg_s_rkr_solver, amg_protect_name => amg_s_rkr_solver_apply_vect
Implicit None
type(psb_desc_type), intent(in) :: desc_data
class(amg_s_rkr_solver_type), intent(inout) :: sv
type(psb_s_vect_type),intent(inout) :: x
type(psb_s_vect_type),intent(inout) :: y
real(psb_spk_),intent(in) :: alpha,beta
character(len=1),intent(in) :: trans
real(psb_spk_),target, intent(inout) :: work(:)
type(psb_s_vect_type),intent(inout) :: wv(:)
integer(psb_ipk_), intent(out) :: info
character, intent(in), optional :: init
type(psb_s_vect_type),intent(inout), optional :: initu
type(psb_s_vect_type) :: z
integer(psb_ipk_) :: np,me,i, err_act, debug_unit, debug_level
type(psb_ctxt_type) :: ctxt
character(len=20) :: name='s_rkr_solver_apply_v', ch_err
info=psb_success_
call psb_erractionsave(err_act)
debug_unit = psb_get_debug_unit()
debug_level = psb_get_debug_level()
ctxt = desc_data%get_context()
call psb_info(ctxt, me, np)
if (debug_level >= psb_debug_outer_) &
& write(debug_unit,*) me,' ',trim(name),' start'
if (sv%global) then
call psb_geall(z,desc_data,info)
call z%zero()
call psb_geasb(z,desc_data,info,mold=x%v)
if (debug_level >= psb_debug_outer_) &
& write(debug_unit,*) me,' ',trim(name),' norms ',&
& psb_genrm2(x,desc_data,info),psb_genrm2(y,desc_data,info),&
& psb_genrm2(z,desc_data,info)
call psb_krylov(sv%method,sv%a,sv%prec,x,z,sv%eps,&
& desc_data,info,itmax=sv%itmax,itrace=sv%itrace,&
& istop=sv%istopc,irst=sv%irst)
!!$ call sv%prec%apply(x,z,desc_data,info,trans=trans,work=work)
call psb_geaxpby(alpha,z,beta,y,desc_data,info)
else
call psb_geaxpby(sone,x,szero,sv%x_local,sv%desc_local,info)
call psb_krylov(sv%method,sv%a_local,sv%prec,sv%x_local,sv%z_local,sv%eps,&
& sv%desc_local,info,itmax=sv%itmax,itrace=sv%itrace,&
& istop=sv%istopc,irst=sv%irst)
call psb_geaxpby(alpha,sv%z_local,beta,y,sv%desc_local,info)
end if
call psb_erractionrestore(err_act)
return
9999 call psb_error_handler(err_act)
return
end subroutine amg_s_rkr_solver_apply_vect
subroutine amg_s_rkr_solver_apply(alpha,sv,x,beta,y,desc_data,&
& trans,work,info,init,initu)
use psb_base_mod
use amg_s_rkr_solver, amg_protect_name => amg_s_rkr_solver_apply
implicit none
type(psb_desc_type), intent(in) :: desc_data
class(amg_s_rkr_solver_type), intent(inout) :: sv
real(psb_spk_),intent(inout) :: x(:)
real(psb_spk_),intent(inout) :: y(:)
real(psb_spk_),intent(in) :: alpha,beta
character(len=1),intent(in) :: trans
real(psb_spk_),target, intent(inout) :: work(:)
integer(psb_ipk_), intent(out) :: info
character, intent(in), optional :: init
real(psb_spk_),intent(inout), optional :: initu(:)
real(psb_spk_), allocatable :: z(:)
integer(psb_ipk_) :: np,me,i, err_act, debug_unit, debug_level
type(psb_ctxt_type) :: ctxt
character(len=20) :: name='s_rkr_solver_apply', ch_err
info=psb_success_
call psb_erractionsave(err_act)
debug_unit = psb_get_debug_unit()
debug_level = psb_get_debug_level()
ctxt = desc_data%get_context()
call psb_info(ctxt, me, np)
if (debug_level >= psb_debug_outer_) &
& write(debug_unit,*) me,' ',trim(name),' start'
call psb_geasb(z,desc_data,info,scratch=.true.)
call sv%prec%apply(x,z,desc_data,info,trans=trans,work=work)
call psb_geaxpby(alpha,z,beta,y,desc_data,info)
call psb_erractionrestore(err_act)
return
9999 call psb_error_handler(err_act)
return
end subroutine amg_s_rkr_solver_apply

271
amgprec/impl/solver/amg_z_rkr_solver_impl.f90
Unescape Escape View File

@ -0,0 +1,271 @@
!
!
! AMG4PSBLAS version 1.0
! Algebraic Multigrid Package
! based on PSBLAS (Parallel Sparse BLAS version 3.5)
!
! (C) Copyright 2020
!
! 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.
!
!
! File: amg_z_rkr_solver_impl.f90
!
! This is the implementation file corresponding to amg_z_rkr_solver_mod.
!
!
subroutine amg_z_rkr_solver_bld(a,desc_a,sv,info,b,amold,vmold)
use psb_base_mod
use amg_z_rkr_solver, amg_protect_name => amg_z_rkr_solver_bld
Implicit None
! Arguments
type(psb_zspmat_type), intent(inout), target :: a
Type(psb_desc_type), Intent(inout) :: desc_a
class(amg_z_rkr_solver_type), intent(inout) :: sv
integer(psb_ipk_), intent(out) :: info
type(psb_zspmat_type), intent(in), target, optional :: b
class(psb_z_base_sparse_mat), intent(in), optional :: amold
class(psb_z_base_vect_type), intent(in), optional :: vmold
! Local variables
integer(psb_ipk_) :: n_row,n_col, nrow_a, nztota
integer(psb_lpk_) :: lnr
integer(psb_ipk_) :: np,me,i, err_act, debug_unit, debug_level
type(psb_ctxt_type) :: ctxt, l_ctxt
character(len=20) :: name='z_rkr_solver_bld', ch_err
info=psb_success_
call psb_erractionsave(err_act)
debug_unit = psb_get_debug_unit()
debug_level = psb_get_debug_level()
ctxt = desc_a%get_context()
call psb_info(ctxt, me, np)
if (debug_level >= psb_debug_outer_) &
& write(debug_unit,*) me,' ',trim(name),' start'
call sv%prec%free(info)
if (sv%global) then
call sv%prec%init(ctxt,sv%kprec,info)
if (sv%i_sub_solve>0) then
call sv%prec%set('sub_solve',sv%i_sub_solve,info)
else
call sv%prec%set('sub_solve',sv%sub_solve,info)
end if
call sv%prec%set('sub_fillin',sv%fillin,info)
call sv%prec%hierarchy_build(a,desc_a,info)
call sv%prec%smoothers_build(a,desc_a,info,amold=amold,vmold=vmold)
sv%a => a
else
call psb_init(l_ctxt,np=1_psb_ipk_,basectxt=ctxt,ids=(/me/))
n_row = desc_a%get_local_rows()
lnr = n_row
call psb_cdall(l_ctxt,sv%desc_local,info,mg=lnr,repl=.true.)
call psb_cdasb(sv%desc_local,info)
call sv%prec%init(l_ctxt,sv%kprec,info)
!This is a gigantic kludge, to be revised
if (sv%i_sub_solve>0) then
call sv%prec%set('sub_solve',sv%i_sub_solve,info)
else
call sv%prec%set('sub_solve',sv%sub_solve,info)
end if
call sv%prec%set('sub_fillin',sv%fillin,info)
call a%csclip(sv%a_local,info,jmax=n_row)
call sv%prec%hierarchy_build(sv%a_local,sv%desc_local,info)
call sv%prec%smoothers_build(sv%a_local,sv%desc_local,info,amold=amold,vmold=vmold)
call psb_geall(sv%x_local,sv%desc_local,info)
call sv%x_local%zero()
call psb_geasb(sv%x_local,sv%desc_local,info,mold=vmold)
call psb_geall(sv%z_local,sv%desc_local,info)
call sv%z_local%zero()
call psb_geasb(sv%z_local,sv%desc_local,info,mold=vmold)
end if
if(info /= psb_success_) then
info=psb_err_from_subroutine_
ch_err='inner precbld'
call psb_errpush(info,name,a_err=ch_err)
goto 9999
end if
if (debug_level >= psb_debug_outer_) &
& write(debug_unit,*) me,' ',trim(name),' end'
call psb_erractionrestore(err_act)
return
9999 call psb_error_handler(err_act)
return
end subroutine amg_z_rkr_solver_bld
subroutine amg_z_rkr_solver_apply_vect(alpha,sv,x,beta,y,desc_data,&
& trans,work,wv,info,init,initu)
use psb_base_mod
use psb_krylov_mod
use amg_z_rkr_solver, amg_protect_name => amg_z_rkr_solver_apply_vect
Implicit None
type(psb_desc_type), intent(in) :: desc_data
class(amg_z_rkr_solver_type), intent(inout) :: sv
type(psb_z_vect_type),intent(inout) :: x
type(psb_z_vect_type),intent(inout) :: y
complex(psb_dpk_),intent(in) :: alpha,beta
character(len=1),intent(in) :: trans
complex(psb_dpk_),target, intent(inout) :: work(:)
type(psb_z_vect_type),intent(inout) :: wv(:)
integer(psb_ipk_), intent(out) :: info
character, intent(in), optional :: init
type(psb_z_vect_type),intent(inout), optional :: initu
type(psb_z_vect_type) :: z
integer(psb_ipk_) :: np,me,i, err_act, debug_unit, debug_level
type(psb_ctxt_type) :: ctxt
character(len=20) :: name='z_rkr_solver_apply_v', ch_err
info=psb_success_
call psb_erractionsave(err_act)
debug_unit = psb_get_debug_unit()
debug_level = psb_get_debug_level()
ctxt = desc_data%get_context()
call psb_info(ctxt, me, np)
if (debug_level >= psb_debug_outer_) &
& write(debug_unit,*) me,' ',trim(name),' start'
if (sv%global) then
call psb_geall(z,desc_data,info)
call z%zero()
call psb_geasb(z,desc_data,info,mold=x%v)
if (debug_level >= psb_debug_outer_) &
& write(debug_unit,*) me,' ',trim(name),' norms ',&
& psb_genrm2(x,desc_data,info),psb_genrm2(y,desc_data,info),&
& psb_genrm2(z,desc_data,info)
call psb_krylov(sv%method,sv%a,sv%prec,x,z,sv%eps,&
& desc_data,info,itmax=sv%itmax,itrace=sv%itrace,&
& istop=sv%istopc,irst=sv%irst)
!!$ call sv%prec%apply(x,z,desc_data,info,trans=trans,work=work)
call psb_geaxpby(alpha,z,beta,y,desc_data,info)
else
call psb_geaxpby(zone,x,zzero,sv%x_local,sv%desc_local,info)
call psb_krylov(sv%method,sv%a_local,sv%prec,sv%x_local,sv%z_local,sv%eps,&
& sv%desc_local,info,itmax=sv%itmax,itrace=sv%itrace,&
& istop=sv%istopc,irst=sv%irst)
call psb_geaxpby(alpha,sv%z_local,beta,y,sv%desc_local,info)
end if
call psb_erractionrestore(err_act)
return
9999 call psb_error_handler(err_act)
return
end subroutine amg_z_rkr_solver_apply_vect
subroutine amg_z_rkr_solver_apply(alpha,sv,x,beta,y,desc_data,&
& trans,work,info,init,initu)
use psb_base_mod
use amg_z_rkr_solver, amg_protect_name => amg_z_rkr_solver_apply
implicit none
type(psb_desc_type), intent(in) :: desc_data
class(amg_z_rkr_solver_type), intent(inout) :: sv
complex(psb_dpk_),intent(inout) :: x(:)
complex(psb_dpk_),intent(inout) :: y(:)
complex(psb_dpk_),intent(in) :: alpha,beta
character(len=1),intent(in) :: trans
complex(psb_dpk_),target, intent(inout) :: work(:)
integer(psb_ipk_), intent(out) :: info
character, intent(in), optional :: init
complex(psb_dpk_),intent(inout), optional :: initu(:)
complex(psb_dpk_), allocatable :: z(:)
integer(psb_ipk_) :: np,me,i, err_act, debug_unit, debug_level
type(psb_ctxt_type) :: ctxt
character(len=20) :: name='z_rkr_solver_apply', ch_err
info=psb_success_
call psb_erractionsave(err_act)
debug_unit = psb_get_debug_unit()
debug_level = psb_get_debug_level()
ctxt = desc_data%get_context()
call psb_info(ctxt, me, np)
if (debug_level >= psb_debug_outer_) &
& write(debug_unit,*) me,' ',trim(name),' start'
call psb_geasb(z,desc_data,info,scratch=.true.)
call sv%prec%apply(x,z,desc_data,info,trans=trans,work=work)
call psb_geaxpby(alpha,z,beta,y,desc_data,info)
call psb_erractionrestore(err_act)
return
9999 call psb_error_handler(err_act)
return
end subroutine amg_z_rkr_solver_apply
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