Moving files from PSBLAS2 to MLD2P4.
Salvatore Filippone
18 years ago
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569630bf08
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!!$
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!!$
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!!$ MD2P4
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!!$ Multilevel Domain Decomposition Parallel Preconditioner Package for PSBLAS
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!!$ for
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!!$ Parallel Sparse BLAS v2.0
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!!$ (C) Copyright 2006 Salvatore Filippone University of Rome Tor Vergata
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!!$ Alfredo Buttari University of Rome Tor Vergata
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!!$ Daniela di Serafino Second University of Naples
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!!$ Pasqua D'Ambra ICAR-CNR
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!!$
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!!$ Redistribution and use in source and binary forms, with or without
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!!$ modification, are permitted provided that the following conditions
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!!$ are met:
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!!$ 1. Redistributions of source code must retain the above copyright
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!!$ notice, this list of conditions and the following disclaimer.
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!!$ 2. Redistributions in binary form must reproduce the above copyright
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!!$ notice, this list of conditions, and the following disclaimer in the
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!!$ documentation and/or other materials provided with the distribution.
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!!$ 3. The name of the MD2P4 group or the names of its contributors may
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!!$ not be used to endorse or promote products derived from this
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!!$ software without specific written permission.
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!!$
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!!$ THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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!!$ ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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!!$ TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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!!$ PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE MD2P4 GROUP OR ITS CONTRIBUTORS
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!!$ BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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!!$ CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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!!$ SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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!!$ INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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!!$ CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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!!$ ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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!!$ POSSIBILITY OF SUCH DAMAGE.
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!!$
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!!$
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subroutine psb_dprecset(p,ptype,info,iv,rs,rv,ilev,nlev)
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use psb_base_mod
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use psb_prec_type
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implicit none
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type(psb_dprec_type), intent(inout) :: p
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character(len=*), intent(in) :: ptype
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integer, intent(out) :: info
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integer, optional, intent(in) :: iv(:)
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integer, optional, intent(in) :: nlev,ilev
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real(kind(1.d0)), optional, intent(in) :: rs
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real(kind(1.d0)), optional, intent(in) :: rv(:)
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character(len=len(ptype)) :: typeup
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integer :: isz, err, nlev_, ilev_, i
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info = 0
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if (present(ilev)) then
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ilev_ = max(1, ilev)
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else
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ilev_ = 1
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end if
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if (present(nlev)) then
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if (allocated(p%baseprecv)) then
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write(0,*) 'Warning: NLEV is ignored when P is already allocated'
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end if
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nlev_ = max(1, nlev)
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else
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nlev_ = 1
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end if
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if (.not.allocated(p%baseprecv)) then
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allocate(p%baseprecv(nlev_),stat=err)
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else
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nlev_ = size(p%baseprecv)
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endif
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if ((ilev_<1).or.(ilev_ > nlev_)) then
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write(0,*) 'PRECSET ERRROR: ilev out of bounds'
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info = -1
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return
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endif
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call psb_realloc(ifpsz,p%baseprecv(ilev_)%iprcparm,info)
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if (info == 0) call psb_realloc(dfpsz,p%baseprecv(ilev_)%dprcparm,info)
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if (info /= 0) return
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p%baseprecv(ilev_)%iprcparm(:) = 0
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select case(toupper(ptype(1:len_trim(ptype))))
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case ('NONE','NOPREC')
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p%baseprecv(ilev_)%iprcparm(:) = 0
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p%baseprecv(ilev_)%iprcparm(p_type_) = noprec_
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p%baseprecv(ilev_)%iprcparm(f_type_) = f_none_
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p%baseprecv(ilev_)%iprcparm(restr_) = psb_none_
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p%baseprecv(ilev_)%iprcparm(prol_) = psb_none_
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p%baseprecv(ilev_)%iprcparm(iren_) = 0
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p%baseprecv(ilev_)%iprcparm(n_ovr_) = 0
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p%baseprecv(ilev_)%iprcparm(jac_sweeps_) = 1
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case ('DIAG','DIAGSC')
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p%baseprecv(ilev_)%iprcparm(:) = 0
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p%baseprecv(ilev_)%iprcparm(p_type_) = diagsc_
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p%baseprecv(ilev_)%iprcparm(f_type_) = f_none_
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p%baseprecv(ilev_)%iprcparm(restr_) = psb_none_
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p%baseprecv(ilev_)%iprcparm(prol_) = psb_none_
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p%baseprecv(ilev_)%iprcparm(iren_) = 0
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p%baseprecv(ilev_)%iprcparm(n_ovr_) = 0
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p%baseprecv(ilev_)%iprcparm(jac_sweeps_) = 1
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case ('BJA','ILU')
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p%baseprecv(ilev_)%iprcparm(:) = 0
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p%baseprecv(ilev_)%iprcparm(p_type_) = bja_
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p%baseprecv(ilev_)%iprcparm(f_type_) = f_ilu_n_
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p%baseprecv(ilev_)%iprcparm(restr_) = psb_none_
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p%baseprecv(ilev_)%iprcparm(prol_) = psb_none_
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p%baseprecv(ilev_)%iprcparm(iren_) = 0
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p%baseprecv(ilev_)%iprcparm(n_ovr_) = 0
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p%baseprecv(ilev_)%iprcparm(ilu_fill_in_) = 0
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p%baseprecv(ilev_)%iprcparm(jac_sweeps_) = 1
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case ('ASM','AS')
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p%baseprecv(ilev_)%iprcparm(:) = 0
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! Defaults first
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p%baseprecv(ilev_)%iprcparm(p_type_) = asm_
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p%baseprecv(ilev_)%iprcparm(f_type_) = f_ilu_n_
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p%baseprecv(ilev_)%iprcparm(restr_) = psb_halo_
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p%baseprecv(ilev_)%iprcparm(prol_) = psb_none_
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p%baseprecv(ilev_)%iprcparm(iren_) = 0
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p%baseprecv(ilev_)%iprcparm(n_ovr_) = 1
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p%baseprecv(ilev_)%iprcparm(ilu_fill_in_) = 0
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p%baseprecv(ilev_)%iprcparm(jac_sweeps_) = 1
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if (present(iv)) then
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isz = size(iv)
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if (isz >= 1) p%baseprecv(ilev_)%iprcparm(n_ovr_) = iv(1)
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if (isz >= 2) p%baseprecv(ilev_)%iprcparm(restr_) = iv(2)
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if (isz >= 3) p%baseprecv(ilev_)%iprcparm(prol_) = iv(3)
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if (isz >= 4) p%baseprecv(ilev_)%iprcparm(f_type_) = iv(4)
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! Do not consider renum for the time being.
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!!$ if (isz >= 5) p%baseprecv(ilev_)%iprcparm(iren_) = iv(5)
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end if
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case ('ML', '2L', '2LEV')
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p%baseprecv(ilev_)%iprcparm(:) = 0
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p%baseprecv(ilev_)%iprcparm(p_type_) = bja_
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p%baseprecv(ilev_)%iprcparm(restr_) = psb_none_
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p%baseprecv(ilev_)%iprcparm(prol_) = psb_none_
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p%baseprecv(ilev_)%iprcparm(iren_) = 0
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p%baseprecv(ilev_)%iprcparm(n_ovr_) = 0
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p%baseprecv(ilev_)%iprcparm(ml_type_) = mult_ml_prec_
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p%baseprecv(ilev_)%iprcparm(aggr_alg_) = loc_aggr_
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p%baseprecv(ilev_)%iprcparm(smth_kind_) = smth_omg_
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p%baseprecv(ilev_)%iprcparm(coarse_mat_) = mat_distr_
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p%baseprecv(ilev_)%iprcparm(smth_pos_) = post_smooth_
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p%baseprecv(ilev_)%iprcparm(glb_smth_) = 1
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p%baseprecv(ilev_)%iprcparm(om_choice_) = lib_choice_
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p%baseprecv(ilev_)%iprcparm(f_type_) = f_ilu_n_
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p%baseprecv(ilev_)%iprcparm(ilu_fill_in_) = 0
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p%baseprecv(ilev_)%dprcparm(smooth_omega_) = 4.d0/3.d0
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p%baseprecv(ilev_)%iprcparm(jac_sweeps_) = 1
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if (present(iv)) then
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isz = size(iv)
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if (isz >= 1) p%baseprecv(ilev_)%iprcparm(ml_type_) = iv(1)
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if (isz >= 2) p%baseprecv(ilev_)%iprcparm(aggr_alg_) = iv(2)
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if (isz >= 3) p%baseprecv(ilev_)%iprcparm(coarse_mat_) = iv(3)
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if (isz >= 4) p%baseprecv(ilev_)%iprcparm(smth_pos_) = iv(4)
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if (isz >= 5) p%baseprecv(ilev_)%iprcparm(f_type_) = iv(5)
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if (isz >= 6) p%baseprecv(ilev_)%iprcparm(jac_sweeps_) = iv(6)
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if (isz >= 7) p%baseprecv(ilev_)%iprcparm(smth_kind_) = iv(7)
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end if
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if (present(rs)) then
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p%baseprecv(ilev_)%iprcparm(om_choice_) = user_choice_
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p%baseprecv(ilev_)%dprcparm(smooth_omega_) = rs
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end if
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case default
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write(0,*) 'Unknown preconditioner type request "',ptype,'"'
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err = 2
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end select
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info = err
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end subroutine psb_dprecset
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