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438 lines
12 KiB
Fortran
438 lines
12 KiB
Fortran
!!$
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!!$
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!!$ MLD2P4 version 2.0
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!!$ MultiLevel Domain Decomposition Parallel Preconditioners Package
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!!$ based on PSBLAS (Parallel Sparse BLAS version 3.3)
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!!$
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!!$ (C) Copyright 2008, 2010, 2012, 2015
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!!$
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!!$ Salvatore Filippone University of Rome Tor Vergata
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!!$ Alfredo Buttari CNRS-IRIT, Toulouse
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!!$ Pasqua D'Ambra ICAR-CNR, Naples
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!!$ Daniela di Serafino Second University of Naples
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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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!
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! Subroutine: mld_file_onelev_descr
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! Version: complex
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!
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! This routine prints a description of the preconditioner to the standard
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! output or to a file. It must be called after the preconditioner has been
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! built by mld_precbld.
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!
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! Arguments:
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! p - type(mld_Tprec_type), input.
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! The preconditioner data structure to be printed out.
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! info - integer, output.
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! error code.
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! iout - integer, input, optional.
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! The id of the file where the preconditioner description
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! will be printed. If iout is not present, then the standard
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! output is condidered.
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!
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subroutine mld_z_base_onelev_descr(lv,il,nl,info,iout)
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use psb_base_mod
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use mld_z_onelev_mod, mld_protect_name => mld_z_base_onelev_descr
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Implicit None
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! Arguments
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class(mld_z_onelev_type), intent(in) :: lv
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integer, intent(in) :: il,nl
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integer, intent(out) :: info
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integer, intent(in), optional :: iout
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! Local variables
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integer :: err_act
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integer :: ictxt, me, np
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character(len=20), parameter :: name='mld_z_base_onelev_descr'
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integer :: iout_
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logical :: coarse
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call psb_erractionsave(err_act)
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coarse = (il==nl)
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if (present(iout)) then
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iout_ = iout
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else
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iout_ = 6
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end if
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write(iout_,*)
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if (il == 2) then
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call lv%parms%mldescr(iout_,info)
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write(iout_,*)
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end if
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if (coarse) then
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write(iout_,*) ' Level ',il,' (coarsest)'
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else
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write(iout_,*) ' Level ',il
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end if
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call lv%parms%descr(iout_,info,coarse=coarse)
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if (nl > 1) then
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if (allocated(lv%map%naggr)) then
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write(iout_,*) ' Size of coarse matrix: ', &
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& sum(lv%map%naggr(:))
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write(iout_,*) ' Sizes of aggregates: ', &
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& lv%map%naggr(:)
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end if
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end if
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if (coarse.and.allocated(lv%sm)) &
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& call lv%sm%descr(info,iout=iout_,coarse=coarse)
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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_onelev_descr
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!
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! Subroutines: mld_T_onelev_precfree
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! Version: complex
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!
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! These routines deallocate the mld_Tonelev_type
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!
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! Arguments:
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! p - type(mld_Tonelev_type), input.
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! The data structure to be deallocated.
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! info - integer, output.
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! error code.
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!
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subroutine mld_z_base_onelev_free(lv,info)
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use psb_base_mod
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use mld_z_onelev_mod, mld_protect_name => mld_z_base_onelev_free
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implicit none
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class(mld_z_onelev_type), intent(inout) :: lv
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integer, intent(out) :: info
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integer :: i
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info = psb_success_
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! We might just deallocate the top level array, except
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! that there may be inner objects containing C pointers,
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! e.g. UMFPACK, SLU or CUDA stuff.
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! We really need FINALs.
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if (allocated(lv%sm)) &
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& call lv%sm%free(info)
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call lv%ac%free()
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if (lv%desc_ac%is_ok()) &
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& call lv%desc_ac%free(info)
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call lv%map%free(info)
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! This is a pointer to something else, must not free it here.
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nullify(lv%base_a)
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! This is a pointer to something else, must not free it here.
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nullify(lv%base_desc)
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call lv%nullify()
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end subroutine mld_z_base_onelev_free
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!
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! Onelevel checks.
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! The number of Jacobi sweeps to be applied is not
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! tied to the Jacobi smoother: logically, you have
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! a smoother and you can choose to apply it any number
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! of times you like.
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!
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subroutine mld_z_base_onelev_check(lv,info)
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use psb_base_mod
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use mld_z_onelev_mod, mld_protect_name => mld_z_base_onelev_check
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Implicit None
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! Arguments
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class(mld_z_onelev_type), intent(inout) :: lv
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integer, intent(out) :: info
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Integer :: err_act
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character(len=20) :: name='z_base_onelev_check'
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call psb_erractionsave(err_act)
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info = psb_success_
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call mld_check_def(lv%parms%sweeps,&
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& 'Jacobi sweeps',1,is_int_positive)
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call mld_check_def(lv%parms%sweeps_pre,&
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& 'Jacobi sweeps',1,is_int_positive)
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call mld_check_def(lv%parms%sweeps_post,&
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& 'Jacobi sweeps',1,is_int_positive)
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if (allocated(lv%sm)) then
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call lv%sm%check(info)
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else
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info=3111
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call psb_errpush(info,name)
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goto 9999
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end if
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if (info /= psb_success_) goto 9999
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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_onelev_check
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!
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! Set routines:
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! Parameters belonging here are:
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! Number of smoothing sweeps;
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! Smoother position;
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! Aggregation related parameters
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! Record request on coarse level solver,
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! for checks on solver vs. smoother nomenclature
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! reconciliation.
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!
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subroutine mld_z_base_onelev_seti(lv,what,val,info)
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use psb_base_mod
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use mld_z_onelev_mod, mld_protect_name => mld_z_base_onelev_seti
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Implicit None
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! Arguments
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class(mld_z_onelev_type), intent(inout) :: lv
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integer, intent(in) :: what
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integer, intent(in) :: val
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integer, intent(out) :: info
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Integer :: err_act
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character(len=20) :: name='z_base_onelev_seti'
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call psb_erractionsave(err_act)
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info = psb_success_
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select case (what)
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case (mld_smoother_sweeps_)
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lv%parms%sweeps = val
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lv%parms%sweeps_pre = val
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lv%parms%sweeps_post = val
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case (mld_smoother_sweeps_pre_)
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lv%parms%sweeps_pre = val
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case (mld_smoother_sweeps_post_)
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lv%parms%sweeps_post = val
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case (mld_ml_type_)
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lv%parms%ml_type = val
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case (mld_aggr_alg_)
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lv%parms%aggr_alg = val
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case (mld_aggr_kind_)
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lv%parms%aggr_kind = val
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case (mld_coarse_mat_)
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lv%parms%coarse_mat = val
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case (mld_smoother_pos_)
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lv%parms%smoother_pos = val
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case (mld_aggr_omega_alg_)
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lv%parms%aggr_omega_alg= val
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case (mld_aggr_eig_)
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lv%parms%aggr_eig = val
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case (mld_aggr_filter_)
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lv%parms%aggr_filter = val
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case (mld_coarse_solve_)
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lv%parms%coarse_solve = val
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case default
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if (allocated(lv%sm)) then
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call lv%sm%set(what,val,info)
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end if
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if (info /= psb_success_) goto 9999
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end select
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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_onelev_seti
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subroutine mld_z_base_onelev_setc(lv,what,val,info)
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use psb_base_mod
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use mld_z_onelev_mod, mld_protect_name => mld_z_base_onelev_setc
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Implicit None
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! Arguments
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class(mld_z_onelev_type), intent(inout) :: lv
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integer, intent(in) :: what
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character(len=*), intent(in) :: val
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integer, intent(out) :: info
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Integer :: err_act
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character(len=20) :: name='z_base_onelev_setc'
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integer :: ival
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call psb_erractionsave(err_act)
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info = psb_success_
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call mld_stringval(val,ival,info)
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if (info == psb_success_) call lv%set(what,ival,info)
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if (info /= psb_success_) goto 9999
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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_onelev_setc
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subroutine mld_z_base_onelev_setr(lv,what,val,info)
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use psb_base_mod
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use mld_z_onelev_mod, mld_protect_name => mld_z_base_onelev_setr
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Implicit None
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! Arguments
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class(mld_z_onelev_type), intent(inout) :: lv
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integer, intent(in) :: what
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real(psb_dpk_), intent(in) :: val
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integer, intent(out) :: info
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Integer :: err_act
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character(len=20) :: name='z_base_onelev_setr'
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call psb_erractionsave(err_act)
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info = psb_success_
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select case (what)
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case (mld_aggr_omega_val_)
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lv%parms%aggr_omega_val= val
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case (mld_aggr_thresh_)
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lv%parms%aggr_thresh = val
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case default
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if (allocated(lv%sm)) then
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call lv%sm%set(what,val,info)
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end if
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if (info /= psb_success_) goto 9999
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end select
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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_onelev_setr
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!
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! Dump on file: can be fine-tuned to include the (aggregated) matrix
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! as well as smoother and solver.
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!
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subroutine mld_z_base_onelev_dump(lv,level,info,prefix,head,ac,rp,smoother,solver)
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use psb_base_mod
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use mld_z_onelev_mod, mld_protect_name => mld_z_base_onelev_dump
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implicit none
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class(mld_z_onelev_type), intent(in) :: lv
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integer, intent(in) :: level
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integer, intent(out) :: info
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character(len=*), intent(in), optional :: prefix, head
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logical, optional, intent(in) :: ac, rp, smoother, solver
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integer :: i, j, il1, iln, lname, lev
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integer :: icontxt,iam, np
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character(len=80) :: prefix_
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character(len=120) :: fname ! len should be at least 20 more than
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logical :: ac_, rp_
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! len of prefix_
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info = 0
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if (present(prefix)) then
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prefix_ = trim(prefix(1:min(len(prefix),len(prefix_))))
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else
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prefix_ = "dump_lev_z"
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end if
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if (associated(lv%base_desc)) then
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icontxt = lv%base_desc%get_context()
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call psb_info(icontxt,iam,np)
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else
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icontxt = -1
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iam = -1
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end if
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if (present(ac)) then
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ac_ = ac
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else
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ac_ = .false.
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end if
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if (present(rp)) then
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rp_ = rp
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else
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rp_ = .false.
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end if
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lname = len_trim(prefix_)
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fname = trim(prefix_)
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write(fname(lname+1:lname+5),'(a,i3.3)') '_p',iam
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lname = lname + 5
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if (level >= 2) then
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if (ac_) then
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write(fname(lname+1:),'(a,i3.3,a)')'_l',level,'_ac.mtx'
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write(0,*) 'Filename ',fname
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call lv%ac%print(fname,head=head)
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end if
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if (rp_) then
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write(fname(lname+1:),'(a,i3.3,a)')'_l',level,'_r.mtx'
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write(0,*) 'Filename ',fname
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call lv%map%map_X2Y%print(fname,head=head)
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write(fname(lname+1:),'(a,i3.3,a)')'_l',level,'_p.mtx'
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write(0,*) 'Filename ',fname
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call lv%map%map_Y2X%print(fname,head=head)
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end if
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end if
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if (allocated(lv%sm)) &
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& call lv%sm%dump(icontxt,level,info,smoother=smoother, &
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& solver=solver,prefix=prefix)
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end subroutine mld_z_base_onelev_dump
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