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amg4psblas/mlprec/mld_dprecset.f90

226 lines
7.9 KiB
Fortran

!!$
!!$
!!$ MD2P4
!!$ Multilevel Domain Decomposition Parallel Preconditioner Package for PSBLAS
!!$ for
!!$ Parallel Sparse BLAS v2.0
!!$ (C) Copyright 2006 Salvatore Filippone University of Rome Tor Vergata
!!$ Alfredo Buttari University of Rome Tor Vergata
!!$ Daniela di Serafino Second University of Naples
!!$ Pasqua D'Ambra ICAR-CNR
!!$
!!$ 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 MD2P4 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 MD2P4 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.
!!$
!!$
subroutine mld_dprecseti(p,what,val,info,ilev)
use psb_base_mod
use mld_prec_mod, mld_protect_name => mld_dprecseti
implicit none
type(mld_dprec_type), intent(inout) :: p
integer, intent(in) :: what
integer, intent(in) :: val
integer, intent(out) :: info
integer, optional, intent(in) :: ilev
integer :: ilev_, nlev_
info = 0
if (.not.allocated(p%baseprecv)) then
write(0,*) 'Error: trying to call PRECSET on an uninitialized preconditioner'
info = -1
return
endif
nlev_ = size(p%baseprecv)
if (present(ilev)) then
ilev_ = ilev
else
ilev_ = 1
end if
if ((ilev_<1).or.(ilev_ > nlev_)) then
write(0,*) 'PRECSET ERRROR: ilev out of bounds'
info = -1
return
endif
if (.not.allocated(p%baseprecv(ilev_)%iprcparm)) then
write(0,*) 'Error: trying to call PRECSET on an uninitialized preconditioner'
info = -1
return
endif
if (present(ilev)) then
if (ilev_ == 1) then
! Rules for fine level are slightly different.
select case(what)
case(mld_prec_type_,mld_sub_solve_,mld_sub_restr_,mld_sub_prol_,mld_sub_ren_,mld_n_ovr_,mld_sub_fill_in_,mld_smooth_sweeps_)
p%baseprecv(ilev_)%iprcparm(what) = val
case default
write(0,*) 'Error: trying to call PRECSET with an invalid WHAT'
info = -2
end select
else if (ilev_ > 1) then
select case(what)
case(mld_prec_type_,mld_sub_solve_,mld_sub_restr_,mld_sub_prol_,mld_sub_ren_,mld_n_ovr_,mld_sub_fill_in_,&
& mld_smooth_sweeps_,mld_ml_type_,mld_aggr_alg_,mld_aggr_kind_,mld_coarse_mat_,&
& mld_smooth_pos_,mld_aggr_eig_)
p%baseprecv(ilev_)%iprcparm(what) = val
case(mld_coarse_solve_)
if (ilev_ /= nlev_) then
write(0,*) 'Inconsistent specification of WHAT vs. ILEV'
info = -2
return
end if
p%baseprecv(ilev_)%iprcparm(mld_sub_solve_) = val
case(mld_coarse_sweeps_)
if (ilev_ /= nlev_) then
write(0,*) 'Inconsistent specification of WHAT vs. ILEV'
info = -2
return
end if
p%baseprecv(ilev_)%iprcparm(mld_smooth_sweeps_) = val
case(mld_coarse_fill_in_)
if (ilev_ /= nlev_) then
write(0,*) 'Inconsistent specification of WHAT vs. ILEV'
info = -2
return
end if
p%baseprecv(ilev_)%iprcparm(mld_sub_fill_in_) = val
case default
write(0,*) 'Error: trying to call PRECSET with an invalid WHAT'
info = -2
end select
endif
else if (.not.present(ilev)) then
select case(what)
case(mld_prec_type_,mld_sub_solve_,mld_sub_restr_,mld_sub_prol_,mld_sub_ren_,mld_n_ovr_,mld_sub_fill_in_,&
& mld_smooth_sweeps_,mld_ml_type_,mld_aggr_alg_,mld_aggr_kind_,mld_coarse_mat_,&
& mld_smooth_pos_,mld_aggr_eig_)
do ilev_=1,nlev_-1
if (.not.allocated(p%baseprecv(ilev_)%iprcparm)) then
write(0,*) 'Error: trying to call PRECSET on an uninitialized preconditioner'
info = -1
return
endif
p%baseprecv(ilev_)%iprcparm(what) = val
end do
case(mld_coarse_solve_)
if (.not.allocated(p%baseprecv(nlev_)%iprcparm)) then
write(0,*) 'Error: trying to call PRECSET on an uninitialized preconditioner'
info = -1
return
endif
p%baseprecv(nlev_)%iprcparm(mld_sub_solve_) = val
case(mld_coarse_sweeps_)
if (.not.allocated(p%baseprecv(nlev_)%iprcparm)) then
write(0,*) 'Error: trying to call PRECSET on an uninitialized preconditioner'
info = -1
return
endif
p%baseprecv(nlev_)%iprcparm(mld_smooth_sweeps_) = val
case(mld_coarse_fill_in_)
if (.not.allocated(p%baseprecv(nlev_)%iprcparm)) then
write(0,*) 'Error: trying to call PRECSET on an uninitialized preconditioner'
info = -1
return
endif
p%baseprecv(nlev_)%iprcparm(mld_sub_fill_in_) = val
case default
write(0,*) 'Error: trying to call PRECSET with an invalid WHAT'
info = -2
end select
endif
end subroutine mld_dprecseti
subroutine mld_dprecsetd(p,what,val,info,ilev)
use psb_base_mod
use mld_prec_mod, mld_protect_name => mld_dprecsetd
implicit none
type(mld_dprec_type), intent(inout) :: p
integer, intent(in) :: what
real(kind(1.d0)), intent(in) :: val
integer, intent(out) :: info
integer, optional, intent(in) :: ilev
integer :: ilev_,nlev_
info = 0
if (present(ilev)) then
ilev_ = ilev
else
ilev_ = 1
end if
if (.not.allocated(p%baseprecv)) then
write(0,*) 'Error: trying to call PRECSET on an uninitialized preconditioner'
info = -1
return
endif
nlev_ = size(p%baseprecv)
if ((ilev_<1).or.(ilev_ > nlev_)) then
write(0,*) 'PRECSET ERRROR: ilev out of bounds'
info = -1
return
endif
if (.not.allocated(p%baseprecv(ilev_)%dprcparm)) then
write(0,*) 'Error: trying to call PRECSET on an uninitialized preconditioner'
info = -1
return
endif
if (ilev_ == 1) then
! Rules for fine level are slightly different.
select case(what)
! Right now we don't have any at base level. Will change when
! we implement mld_ilu_t_
case(mld_fact_thrs_)
p%baseprecv(ilev_)%dprcparm(what) = val
case default
write(0,*) 'Error: trying to call PRECSET with an invalid WHAT'
info = -2
end select
else if (ilev_ > 1) then
select case(what)
case(mld_aggr_damp_,mld_fact_thrs_)
p%baseprecv(ilev_)%dprcparm(what) = val
case default
write(0,*) 'Error: trying to call PRECSET with an invalid WHAT'
info = -2
end select
endif
end subroutine mld_dprecsetd