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102 lines
3.8 KiB
Fortran
102 lines
3.8 KiB
Fortran
!
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!
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! AMG4PSBLAS version 1.0
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! Algebraic Multigrid Package
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! based on PSBLAS (Parallel Sparse BLAS version 3.7)
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!
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! (C) Copyright 2021
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!
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! Salvatore Filippone
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! Pasqua D'Ambra
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! Fabio Durastante
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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 AMG4PSBLAS 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 AMG4PSBLAS 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 amg_z_ainv_solver_bld(a,desc_a,sv,info,b,amold,vmold,imold)
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use psb_base_mod
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use psb_z_ainv_fact_mod
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use amg_z_ainv_solver, amg_protect_name => amg_z_ainv_solver_bld
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Implicit None
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! Arguments
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type(psb_zspmat_type), intent(inout), target :: a
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Type(psb_desc_type), Intent(inout) :: desc_a
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class(amg_z_ainv_solver_type), intent(inout) :: sv
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integer(psb_ipk_), intent(out) :: info
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type(psb_zspmat_type), intent(in), target, optional :: b
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class(psb_z_base_sparse_mat), intent(in), optional :: amold
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class(psb_z_base_vect_type), intent(in), optional :: vmold
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class(psb_i_base_vect_type), intent(in), optional :: imold
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! Local variables
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integer(psb_ipk_) :: n_row,n_col, nrow_a, nztota
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complex(psb_dpk_), pointer :: ww(:), aux(:), tx(:),ty(:)
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integer(psb_ipk_) :: np,me,i, err_act, debug_unit, debug_level
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type(psb_ctxt_type) :: ctxt
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character(len=20) :: name='amg_z_ainv_solver_bld', ch_err
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info=psb_success_
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call psb_erractionsave(err_act)
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debug_unit = psb_get_debug_unit()
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debug_level = psb_get_debug_level()
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ctxt = desc_a%get_context()
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call psb_info(ctxt, me, np)
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if (debug_level >= psb_debug_outer_) &
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& write(debug_unit,*) me,' ',trim(name),' start'
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call psb_z_ainv_bld(a,sv%alg,sv%fill_in,sv%thresh,&
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& sv%w,sv%d,sv%z,desc_a,info,b,iscale=amg_ilu_scale_maxval_)
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if ((info == psb_success_) .and.present(amold)) then
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call sv%w%set_asb()
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call sv%w%trim()
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call sv%z%set_asb()
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call sv%z%trim()
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call sv%w%cscnv(info,mold=amold)
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if (info == psb_success_) &
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& call sv%z%cscnv(info,mold=amold)
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end if
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if (info == psb_success_) &
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& call sv%dv%bld(sv%d,mold=vmold)
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if (info /= psb_success_) then
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call psb_errpush(psb_err_internal_error_,name)
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goto 9999
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end if
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if (debug_level >= psb_debug_outer_) &
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& write(debug_unit,*) me,' ',trim(name),' end'
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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 amg_z_ainv_solver_bld
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