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Moving files from PSBLAS2 to MLD2P4.

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stopcriterion
Salvatore Filippone 18 years ago
parent e2dc06520c
commit 23c5c37102
1 changed files with 187 additions and 0 deletions
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psb_dprecset.f90
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!!$
!!$
!!$ 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 psb_dprecset(p,ptype,info,iv,rs,rv,ilev,nlev)
use psb_base_mod
use psb_prec_type
implicit none
type(psb_dprec_type), intent(inout) :: p
character(len=*), intent(in) :: ptype
integer, intent(out) :: info
integer, optional, intent(in) :: iv(:)
integer, optional, intent(in) :: nlev,ilev
real(kind(1.d0)), optional, intent(in) :: rs
real(kind(1.d0)), optional, intent(in) :: rv(:)
character(len=len(ptype)) :: typeup
integer :: isz, err, nlev_, ilev_, i
info = 0
if (present(ilev)) then
ilev_ = max(1, ilev)
else
ilev_ = 1
end if
if (present(nlev)) then
if (allocated(p%baseprecv)) then
write(0,*) 'Warning: NLEV is ignored when P is already allocated'
end if
nlev_ = max(1, nlev)
else
nlev_ = 1
end if
if (.not.allocated(p%baseprecv)) then
allocate(p%baseprecv(nlev_),stat=err)
else
nlev_ = size(p%baseprecv)
endif
if ((ilev_<1).or.(ilev_ > nlev_)) then
write(0,*) 'PRECSET ERRROR: ilev out of bounds'
info = -1
return
endif
call psb_realloc(ifpsz,p%baseprecv(ilev_)%iprcparm,info)
if (info == 0) call psb_realloc(dfpsz,p%baseprecv(ilev_)%dprcparm,info)
if (info /= 0) return
p%baseprecv(ilev_)%iprcparm(:) = 0
select case(toupper(ptype(1:len_trim(ptype))))
case ('NONE','NOPREC')
p%baseprecv(ilev_)%iprcparm(:) = 0
p%baseprecv(ilev_)%iprcparm(p_type_) = noprec_
p%baseprecv(ilev_)%iprcparm(f_type_) = f_none_
p%baseprecv(ilev_)%iprcparm(restr_) = psb_none_
p%baseprecv(ilev_)%iprcparm(prol_) = psb_none_
p%baseprecv(ilev_)%iprcparm(iren_) = 0
p%baseprecv(ilev_)%iprcparm(n_ovr_) = 0
p%baseprecv(ilev_)%iprcparm(jac_sweeps_) = 1
case ('DIAG','DIAGSC')
p%baseprecv(ilev_)%iprcparm(:) = 0
p%baseprecv(ilev_)%iprcparm(p_type_) = diagsc_
p%baseprecv(ilev_)%iprcparm(f_type_) = f_none_
p%baseprecv(ilev_)%iprcparm(restr_) = psb_none_
p%baseprecv(ilev_)%iprcparm(prol_) = psb_none_
p%baseprecv(ilev_)%iprcparm(iren_) = 0
p%baseprecv(ilev_)%iprcparm(n_ovr_) = 0
p%baseprecv(ilev_)%iprcparm(jac_sweeps_) = 1
case ('BJA','ILU')
p%baseprecv(ilev_)%iprcparm(:) = 0
p%baseprecv(ilev_)%iprcparm(p_type_) = bja_
p%baseprecv(ilev_)%iprcparm(f_type_) = f_ilu_n_
p%baseprecv(ilev_)%iprcparm(restr_) = psb_none_
p%baseprecv(ilev_)%iprcparm(prol_) = psb_none_
p%baseprecv(ilev_)%iprcparm(iren_) = 0
p%baseprecv(ilev_)%iprcparm(n_ovr_) = 0
p%baseprecv(ilev_)%iprcparm(ilu_fill_in_) = 0
p%baseprecv(ilev_)%iprcparm(jac_sweeps_) = 1
case ('ASM','AS')
p%baseprecv(ilev_)%iprcparm(:) = 0
! Defaults first
p%baseprecv(ilev_)%iprcparm(p_type_) = asm_
p%baseprecv(ilev_)%iprcparm(f_type_) = f_ilu_n_
p%baseprecv(ilev_)%iprcparm(restr_) = psb_halo_
p%baseprecv(ilev_)%iprcparm(prol_) = psb_none_
p%baseprecv(ilev_)%iprcparm(iren_) = 0
p%baseprecv(ilev_)%iprcparm(n_ovr_) = 1
p%baseprecv(ilev_)%iprcparm(ilu_fill_in_) = 0
p%baseprecv(ilev_)%iprcparm(jac_sweeps_) = 1
if (present(iv)) then
isz = size(iv)
if (isz >= 1) p%baseprecv(ilev_)%iprcparm(n_ovr_) = iv(1)
if (isz >= 2) p%baseprecv(ilev_)%iprcparm(restr_) = iv(2)
if (isz >= 3) p%baseprecv(ilev_)%iprcparm(prol_) = iv(3)
if (isz >= 4) p%baseprecv(ilev_)%iprcparm(f_type_) = iv(4)
! Do not consider renum for the time being.
!!$ if (isz >= 5) p%baseprecv(ilev_)%iprcparm(iren_) = iv(5)
end if
case ('ML', '2L', '2LEV')
p%baseprecv(ilev_)%iprcparm(:) = 0
p%baseprecv(ilev_)%iprcparm(p_type_) = bja_
p%baseprecv(ilev_)%iprcparm(restr_) = psb_none_
p%baseprecv(ilev_)%iprcparm(prol_) = psb_none_
p%baseprecv(ilev_)%iprcparm(iren_) = 0
p%baseprecv(ilev_)%iprcparm(n_ovr_) = 0
p%baseprecv(ilev_)%iprcparm(ml_type_) = mult_ml_prec_
p%baseprecv(ilev_)%iprcparm(aggr_alg_) = loc_aggr_
p%baseprecv(ilev_)%iprcparm(smth_kind_) = smth_omg_
p%baseprecv(ilev_)%iprcparm(coarse_mat_) = mat_distr_
p%baseprecv(ilev_)%iprcparm(smth_pos_) = post_smooth_
p%baseprecv(ilev_)%iprcparm(glb_smth_) = 1
p%baseprecv(ilev_)%iprcparm(om_choice_) = lib_choice_
p%baseprecv(ilev_)%iprcparm(f_type_) = f_ilu_n_
p%baseprecv(ilev_)%iprcparm(ilu_fill_in_) = 0
p%baseprecv(ilev_)%dprcparm(smooth_omega_) = 4.d0/3.d0
p%baseprecv(ilev_)%iprcparm(jac_sweeps_) = 1
if (present(iv)) then
isz = size(iv)
if (isz >= 1) p%baseprecv(ilev_)%iprcparm(ml_type_) = iv(1)
if (isz >= 2) p%baseprecv(ilev_)%iprcparm(aggr_alg_) = iv(2)
if (isz >= 3) p%baseprecv(ilev_)%iprcparm(coarse_mat_) = iv(3)
if (isz >= 4) p%baseprecv(ilev_)%iprcparm(smth_pos_) = iv(4)
if (isz >= 5) p%baseprecv(ilev_)%iprcparm(f_type_) = iv(5)
if (isz >= 6) p%baseprecv(ilev_)%iprcparm(jac_sweeps_) = iv(6)
if (isz >= 7) p%baseprecv(ilev_)%iprcparm(smth_kind_) = iv(7)
end if
if (present(rs)) then
p%baseprecv(ilev_)%iprcparm(om_choice_) = user_choice_
p%baseprecv(ilev_)%dprcparm(smooth_omega_) = rs
end if
case default
write(0,*) 'Unknown preconditioner type request "',ptype,'"'
err = 2
end select
info = err
end subroutine psb_dprecset
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