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102 lines
3.5 KiB
Fortran
102 lines
3.5 KiB
Fortran
!
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!
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! MLD2P4 version 2.1
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! MultiLevel Domain Decomposition Parallel Preconditioners Package
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! based on PSBLAS (Parallel Sparse BLAS version 3.5)
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!
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! (C) Copyright 2008-2018
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!
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! Salvatore Filippone
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! Pasqua D'Ambra
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! Daniela di Serafino
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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 MLD2P4 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 MLD2P4 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 mld_z_base_smoother_descr(sm,info,iout,coarse)
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use psb_base_mod
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use mld_z_base_smoother_mod, mld_protect_name => mld_z_base_smoother_descr
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use mld_z_id_solver
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Implicit None
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! Arguments
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class(mld_z_base_smoother_type), intent(in) :: sm
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integer(psb_ipk_), intent(out) :: info
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integer(psb_ipk_), intent(in), optional :: iout
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logical, intent(in), optional :: coarse
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! Local variables
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integer(psb_ipk_) :: err_act
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integer(psb_ipk_) :: ictxt, me, np
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character(len=20), parameter :: name='mld_z_base_smoother_descr'
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integer(psb_ipk_) :: iout_
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logical :: coarse_
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call psb_erractionsave(err_act)
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info = psb_success_
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if (present(coarse)) then
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coarse_ = coarse
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else
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coarse_ = .false.
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end if
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if (present(iout)) then
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iout_ = iout
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else
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iout_ = psb_out_unit
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end if
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if (coarse_) then
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if (allocated(sm%sv)) call sm%sv%descr(info,iout,coarse)
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else
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if (allocated(sm%sv)) then
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select type (sv => sm%sv)
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class is (mld_z_id_solver_type)
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write(iout_,*) 'No preconditioner/smoother'
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class default
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write(iout_,*) 'Decoupled preconditioner/smoother with local solver'
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call sm%sv%descr(info,iout,coarse)
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end select
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else
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write(iout_,*) 'No preconditioner/smoother'
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end if
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end if
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if (info /= psb_success_) then
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info = psb_err_from_subroutine_
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call psb_errpush(info,name,a_err='Local solver')
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goto 9999
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end if
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call psb_erractionrestore(err_act)
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return
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9999 call psb_error_handler(err_act)
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return
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end subroutine mld_z_base_smoother_descr
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