!!$ !!$ !!$ MLD2P4 version 2.0 !!$ MultiLevel Domain Decomposition Parallel Preconditioners Package !!$ based on PSBLAS (Parallel Sparse BLAS version 3.3) !!$ !!$ (C) Copyright 2008, 2010, 2012, 2015 !!$ !!$ Salvatore Filippone University of Rome Tor Vergata !!$ Alfredo Buttari CNRS-IRIT, Toulouse !!$ Pasqua D'Ambra ICAR-CNR, Naples !!$ Daniela di Serafino Second University of Naples !!$ !!$ 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 MLD2P4 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 MLD2P4 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. !!$ !!$ ! ! ! ! ! ! module mld_c_sludist_solver use iso_c_binding use mld_c_base_solver_mod #if defined(LONG_INTEGERS) type, extends(mld_c_base_solver_type) :: mld_c_sludist_solver_type end type mld_c_sludist_solver_type #else type, extends(mld_c_base_solver_type) :: mld_c_sludist_solver_type type(c_ptr) :: lufactors=c_null_ptr integer(c_long_long) :: symbsize=0, numsize=0 contains procedure, pass(sv) :: build => c_sludist_solver_bld procedure, pass(sv) :: apply_a => c_sludist_solver_apply procedure, pass(sv) :: apply_v => c_sludist_solver_apply_vect procedure, pass(sv) :: free => c_sludist_solver_free procedure, pass(sv) :: descr => c_sludist_solver_descr procedure, pass(sv) :: sizeof => c_sludist_solver_sizeof #if defined(HAVE_FINAL) final :: c_sludist_solver_finalize #endif end type mld_c_sludist_solver_type private :: c_sludist_solver_bld, c_sludist_solver_apply, & & c_sludist_solver_free, c_sludist_solver_descr, & & c_sludist_solver_sizeof, c_sludist_solver_apply_vect #if defined(HAVE_FINAL) private :: c_sludist_solver_finalize #endif interface function mld_csludist_fact(n,nl,nnz,ifrst, & & values,rowptr,colind,lufactors,npr,npc) & & bind(c,name='mld_csludist_fact') result(info) use iso_c_binding integer(c_int), value :: n,nl,nnz,ifrst,npr,npc integer(c_int) :: info integer(c_int) :: rowptr(*),colind(*) complex(c_float_complex) :: values(*) type(c_ptr) :: lufactors end function mld_csludist_fact end interface interface function mld_csludist_solve(itrans,n,nrhs, b, ldb, lufactors)& & bind(c,name='mld_csludist_solve') result(info) use iso_c_binding integer(c_int) :: info integer(c_int), value :: itrans,n,nrhs,ldb complex(c_float_complex) :: b(ldb,*) type(c_ptr), value :: lufactors end function mld_csludist_solve end interface interface function mld_csludist_free(lufactors)& & bind(c,name='mld_csludist_free') result(info) use iso_c_binding integer(c_int) :: info type(c_ptr), value :: lufactors end function mld_csludist_free end interface contains subroutine c_sludist_solver_apply(alpha,sv,x,beta,y,desc_data,trans,work,info) use psb_base_mod implicit none type(psb_desc_type), intent(in) :: desc_data class(mld_c_sludist_solver_type), intent(inout) :: sv complex(psb_spk_),intent(inout) :: x(:) complex(psb_spk_),intent(inout) :: y(:) complex(psb_spk_),intent(in) :: alpha,beta character(len=1),intent(in) :: trans complex(psb_spk_),target, intent(inout) :: work(:) integer, intent(out) :: info integer :: n_row,n_col complex(psb_spk_), pointer :: ww(:) integer :: ictxt,np,me,i, err_act character :: trans_ character(len=20) :: name='c_sludist_solver_apply' call psb_erractionsave(err_act) info = psb_success_ trans_ = psb_toupper(trans) select case(trans_) case('N') case('T','C') case default call psb_errpush(psb_err_iarg_invalid_i_,name) goto 9999 end select n_row = desc_data%get_local_rows() n_col = desc_data%get_local_cols() if (n_col <= size(work)) then ww => work(1:n_col) else allocate(ww(n_col),stat=info) if (info /= psb_success_) then info=psb_err_alloc_request_ call psb_errpush(info,name,i_err=(/n_col,0,0,0,0/),& & a_err='complex(psb_spk_)') goto 9999 end if endif if (info == psb_success_)& & call psb_geaxpby(cone,x,czero,ww,desc_data,info) select case(trans_) case('N') info = mld_csludist_solve(0,n_row,1,ww,n_row,sv%lufactors) case('T') info = mld_csludist_solve(1,n_row,1,ww,n_row,sv%lufactors) case('C') info = mld_csludist_solve(2,n_row,1,ww,n_row,sv%lufactors) case default call psb_errpush(psb_err_internal_error_,& & name,a_err='Invalid TRANS in subsolve') goto 9999 end select if (info == psb_success_)& & call psb_geaxpby(alpha,ww,beta,y,desc_data,info) if (info /= psb_success_) then call psb_errpush(psb_err_internal_error_,& & name,a_err='Error in subsolve') goto 9999 endif if (n_col > size(work)) then deallocate(ww) endif call psb_erractionrestore(err_act) return 9999 call psb_error_handler(err_act) return end subroutine c_sludist_solver_apply subroutine c_sludist_solver_apply_vect(alpha,sv,x,beta,y,desc_data,trans,work,info) use psb_base_mod implicit none type(psb_desc_type), intent(in) :: desc_data class(mld_c_sludist_solver_type), intent(inout) :: sv type(psb_c_vect_type),intent(inout) :: x type(psb_c_vect_type),intent(inout) :: y complex(psb_spk_),intent(in) :: alpha,beta character(len=1),intent(in) :: trans complex(psb_spk_),target, intent(inout) :: work(:) integer, intent(out) :: info integer :: err_act character(len=20) :: name='c_sludist_solver_apply_vect' call psb_erractionsave(err_act) info = psb_success_ call x%v%sync() call y%v%sync() call sv%apply(alpha,x%v%v,beta,y%v%v,desc_data,trans,work,info) call y%v%set_host() if (info /= 0) goto 9999 call psb_erractionrestore(err_act) return 9999 call psb_error_handler(err_act) return end subroutine c_sludist_solver_apply_vect subroutine c_sludist_solver_bld(a,desc_a,sv,upd,info,b,amold,vmold,imold) use psb_base_mod Implicit None ! Arguments type(psb_cspmat_type), intent(in), target :: a Type(psb_desc_type), Intent(in) :: desc_a class(mld_c_sludist_solver_type), intent(inout) :: sv character, intent(in) :: upd integer, intent(out) :: info type(psb_cspmat_type), intent(in), target, optional :: b class(psb_c_base_sparse_mat), intent(in), optional :: amold class(psb_c_base_vect_type), intent(in), optional :: vmold class(psb_i_base_vect_type), intent(in), optional :: imold ! Local variables type(psb_cspmat_type) :: atmp type(psb_c_csr_sparse_mat) :: acsr integer :: n_row,n_col, nrow_a, nztota, nglob, nzt, npr, npc integer :: ifrst, ibcheck integer :: ictxt,np,me,i, err_act, debug_unit, debug_level character(len=20) :: name='c_sludist_solver_bld', ch_err info=psb_success_ call psb_erractionsave(err_act) debug_unit = psb_get_debug_unit() debug_level = psb_get_debug_level() ictxt = desc_a%get_context() call psb_info(ictxt, me, np) npr = np npc = 1 if (debug_level >= psb_debug_outer_) & & write(debug_unit,*) me,' ',trim(name),' start' if (psb_toupper(upd) == 'F') then n_row = desc_a%get_local_rows() n_col = desc_a%get_local_cols() nglob = desc_a%get_global_rows() call a%cscnv(atmp,info,type='coo') call psb_rwextd(n_row,atmp,info,b=b) call atmp%cscnv(info,type='csr',dupl=psb_dupl_add_) call atmp%mv_to(acsr) nrow_a = acsr%get_nrows() nztota = acsr%get_nzeros() ! Fix the entries to call C-base SuperLU call psb_loc_to_glob(1,ifrst,desc_a,info) call psb_loc_to_glob(nrow_a,ibcheck,desc_a,info) call psb_loc_to_glob(acsr%ja(1:nztota),desc_a,info,iact='I') acsr%ja(:) = acsr%ja(:) - 1 acsr%irp(:) = acsr%irp(:) - 1 ifrst = ifrst - 1 info = mld_csludist_fact(nglob,nrow_a,nztota,ifrst,& & acsr%val,acsr%irp,acsr%ja,sv%lufactors,& & npr,npc) if (info /= psb_success_) then info=psb_err_from_subroutine_ ch_err='mld_csludist_fact' call psb_errpush(info,name,a_err=ch_err) goto 9999 end if call acsr%free() call atmp%free() else ! ? info=psb_err_internal_error_ call psb_errpush(info,name) goto 9999 end if if (debug_level >= psb_debug_outer_) & & write(debug_unit,*) me,' ',trim(name),' end' call psb_erractionrestore(err_act) return 9999 call psb_error_handler(err_act) return end subroutine c_sludist_solver_bld subroutine c_sludist_solver_free(sv,info) Implicit None ! Arguments class(mld_c_sludist_solver_type), intent(inout) :: sv integer, intent(out) :: info Integer :: err_act character(len=20) :: name='c_sludist_solver_free' call psb_erractionsave(err_act) info = mld_csludist_free(sv%lufactors) if (info /= psb_success_) goto 9999 sv%lufactors = c_null_ptr call psb_erractionrestore(err_act) return 9999 call psb_error_handler(err_act) return end subroutine c_sludist_solver_free #if defined(HAVE_FINAL) subroutine c_sludist_solver_finalize(sv) Implicit None ! Arguments type(mld_c_sludist_solver_type), intent(inout) :: sv integer :: info Integer :: err_act character(len=20) :: name='c_sludist_solver_finalize' call sv%free(info) return end subroutine c_sludist_solver_finalize #endif subroutine c_sludist_solver_descr(sv,info,iout,coarse) Implicit None ! Arguments class(mld_c_sludist_solver_type), intent(in) :: sv integer, intent(out) :: info integer, intent(in), optional :: iout logical, intent(in), optional :: coarse ! Local variables integer :: err_act integer :: ictxt, me, np character(len=20), parameter :: name='mld_c_sludist_solver_descr' integer :: iout_ call psb_erractionsave(err_act) info = psb_success_ if (present(iout)) then iout_ = iout else iout_ = 6 endif write(iout_,*) ' SuperLU_Dist Sparse Factorization Solver. ' call psb_erractionrestore(err_act) return 9999 call psb_error_handler(err_act) return end subroutine c_sludist_solver_descr function c_sludist_solver_sizeof(sv) result(val) implicit none ! Arguments class(mld_c_sludist_solver_type), intent(in) :: sv integer(psb_long_int_k_) :: val integer :: i val = 2*psb_sizeof_int + psb_sizeof_dp val = val + sv%symbsize val = val + sv%numsize return end function c_sludist_solver_sizeof #endif end module mld_c_sludist_solver