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psblas3/prec/psb_prec_const_mod.f90

195 lines
7.2 KiB
Fortran

!
! Parallel Sparse BLAS version 3.5
! (C) Copyright 2006-2018
! Salvatore Filippone
! Alfredo Buttari
!
! Redistribution and use in source and binary forms, with or without
! modification, are permitted provided that the following conditions
! are met:
! 1. Redistributions of source code must retain the above copyright
! notice, this list of conditions and the following disclaimer.
! 2. Redistributions in binary form must reproduce the above copyright
! notice, this list of conditions, and the following disclaimer in the
! documentation and/or other materials provided with the distribution.
! 3. The name of the PSBLAS group or the names of its contributors may
! not be used to endorse or promote products derived from this
! software without specific written permission.
!
! THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
! ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
! TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
! PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE PSBLAS GROUP OR ITS CONTRIBUTORS
! BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
! CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
! SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
! INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
! CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
! ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
! POSSIBILITY OF SUCH DAMAGE.
!
!
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
!! Module to define PREC_DATA, !!
!! structure for preconditioning. !!
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
module psb_prec_const_mod
use psb_base_mod, only : psb_dpk_, psb_spk_, psb_ipk_, psb_epk_,&
& psb_err_unit, psb_inp_unit, psb_out_unit
integer(psb_ipk_), parameter :: psb_min_prec_=0, psb_noprec_=0, psb_diag_=1, &
& psb_bjac_=2, psb_max_prec_=2
! Entries in iprcparm: preconditioner type, factorization type,
! prolongation type, restriction type, renumbering algorithm,
! number of overlap layers, pointer to SuperLU factors,
! levels of fill in for ILU(N),
integer(psb_ipk_), parameter :: psb_p_type_=1, psb_f_type_=2
integer(psb_ipk_), parameter :: psb_ilu_fill_in_=8
integer(psb_ipk_), parameter :: psb_ilu_ialg_=9
!Renumbering. SEE BELOW
integer(psb_ipk_), parameter :: psb_renum_none_=0, psb_renum_glb_=1, psb_renum_gps_=2
integer(psb_ipk_), parameter :: psb_ifpsz=10
! Entries in rprcparm: ILU(E) epsilon, smoother omega
integer(psb_ipk_), parameter :: psb_ilu_scale_=7
integer(psb_ipk_), parameter :: psb_fact_eps_=1
integer(psb_ipk_), parameter :: psb_rfpsz=8
! Factorization types: none, ILU(0), ILU(N), ILU(N,E)
integer(psb_ipk_), parameter :: psb_f_none_=0,psb_f_ilu_n_=1,psb_f_ilu_k_=2,psb_f_ilu_t_=3
! Approximate Inverse factorization type: AINV, INVT, INVK
integer(psb_ipk_), parameter :: psb_f_ainv_=4, psb_f_invt_=5, psb_f_invk_=6
! Fields for sparse matrices ensembles:
integer(psb_ipk_), parameter :: psb_l_pr_=1, psb_u_pr_=2, psb_bp_ilu_avsz=2
integer(psb_ipk_), parameter :: psb_max_avsz=psb_bp_ilu_avsz
integer(psb_ipk_), parameter :: psb_ilu_n_ = 13
integer(psb_ipk_), parameter :: psb_milu_n_ = 14
integer(psb_ipk_), parameter :: psb_ilu_t_ = 15
integer(psb_ipk_), parameter :: psb_ilu_scale_none_ = 0
integer(psb_ipk_), parameter :: psb_ilu_scale_maxval_ = 1
integer(psb_ipk_), parameter :: psb_ilu_scale_diag_ = 2
integer(psb_ipk_), parameter :: psb_ilu_scale_arwsum_ = 3
integer(psb_ipk_), parameter :: psb_ilu_scale_aclsum_ = 4
integer(psb_ipk_), parameter :: psb_ilu_scale_arcsum_ = 5
! Numerical parameters relative to Approximate Inverse Preconditioners
integer, parameter :: psb_inv_fillin_ = 3
integer, parameter :: psb_ainv_alg_ = psb_inv_fillin_ + 1
integer, parameter :: psb_inv_thresh_ = 3
integer, parameter :: psb_ainv_llk_ = psb_inv_thresh_ + 1
integer, parameter :: psb_ainv_s_llk_ = psb_ainv_llk_ + 1
integer, parameter :: psb_ainv_s_ft_llk_ = psb_ainv_s_llk_ + 1
integer, parameter :: psb_ainv_llk_noth_ = psb_ainv_s_ft_llk_ + 1
integer, parameter :: psb_ainv_mlk_ = psb_ainv_llk_noth_ + 1
integer, parameter :: psb_ainv_lmx_ = psb_ainv_mlk_
interface psb_check_def
module procedure psb_icheck_def, psb_scheck_def, psb_dcheck_def
end interface
contains
function pr_to_str(iprec)
integer(psb_ipk_), intent(in) :: iprec
character(len=10) :: pr_to_str
select case(iprec)
case(psb_noprec_)
pr_to_str='NOPREC'
case(psb_diag_)
pr_to_str='DIAG'
case(psb_bjac_)
pr_to_str='BJAC'
case default
pr_to_str='???'
end select
end function pr_to_str
function is_legal_prec(ip)
integer(psb_ipk_), intent(in) :: ip
logical :: is_legal_prec
is_legal_prec = ((ip>=psb_noprec_).and.(ip<=psb_bjac_))
return
end function is_legal_prec
function is_legal_ml_fact(ip)
integer(psb_ipk_), intent(in) :: ip
logical :: is_legal_ml_fact
is_legal_ml_fact = (ip == psb_f_ilu_n_)
return
end function is_legal_ml_fact
function is_legal_ml_eps(ip)
real(psb_dpk_), intent(in) :: ip
logical :: is_legal_ml_eps
is_legal_ml_eps = (ip>=0.0d0)
return
end function is_legal_ml_eps
subroutine psb_icheck_def(ip,name,id,is_legal)
integer(psb_ipk_), intent(inout) :: ip
integer(psb_ipk_), intent(in) :: id
character(len=*), intent(in) :: name
interface
function is_legal(i)
import :: psb_ipk_
integer(psb_ipk_), intent(in) :: i
logical :: is_legal
end function is_legal
end interface
if (.not.is_legal(ip)) then
write(psb_err_unit,*) 'Illegal value for ',name,' :',ip, '. defaulting to ',id
ip = id
end if
end subroutine psb_icheck_def
subroutine psb_scheck_def(ip,name,id,is_legal)
real(psb_spk_), intent(inout) :: ip
real(psb_spk_), intent(in) :: id
character(len=*), intent(in) :: name
interface
function is_legal(i)
import :: psb_ipk_, psb_spk_
real(psb_spk_), intent(in) :: i
logical :: is_legal
end function is_legal
end interface
if (.not.is_legal(ip)) then
write(psb_err_unit,*) 'Illegal value for ',name,' :',ip, '. defaulting to ',id
ip = id
end if
end subroutine psb_scheck_def
subroutine psb_dcheck_def(ip,name,id,is_legal)
real(psb_dpk_), intent(inout) :: ip
real(psb_dpk_), intent(in) :: id
character(len=*), intent(in) :: name
interface
function is_legal(i)
import :: psb_ipk_, psb_spk_, psb_dpk_
real(psb_dpk_), intent(in) :: i
logical :: is_legal
end function is_legal
end interface
if (.not.is_legal(ip)) then
write(psb_err_unit,*) 'Illegal value for ',name,' :',ip, '. defaulting to ',id
ip = id
end if
end subroutine psb_dcheck_def
end module psb_prec_const_mod