! ! Parallel Sparse BLAS version 3.5 ! (C) Copyright 2006-2018 ! Salvatore Filippone ! Alfredo Buttari ! ! 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 PSBLAS 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 PSBLAS 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. ! ! ! ! File: psi_indx_map_fnd_owner.f90 ! ! Subroutine: psi_indx_map_fnd_owner ! Figure out who owns global indices. ! ! Arguments: ! idx(:) - integer Required indices on the calling process. ! Note: the indices should be unique! ! iprc(:) - integer(psb_ipk_), allocatable Output: process identifiers for the corresponding ! indices ! idxmap - class(psb_indx_map). The index map ! info - integer. return code. ! ! This is the default implementation of the FND_OWNER method. ! If a particular index map class has additional information, it can override it ! (see e.g. the GEN_BLOCK_MAP class). ! ! 1. Check if IDXM%PARTS is available, and use it; or ! 2. Check if TEMPVG(:) is allocated, and use it; or ! 3. Call the general method PSI_GRAPH_FND_OWNER. ! subroutine psi_indx_map_fnd_owner(idx,iprc,idxmap,info) use psb_serial_mod use psb_const_mod use psb_error_mod use psb_penv_mod use psb_realloc_mod use psb_indx_map_mod, psb_protect_name => psi_indx_map_fnd_owner #ifdef MPI_MOD use mpi #endif implicit none #ifdef MPI_H include 'mpif.h' #endif integer(psb_lpk_), intent(in) :: idx(:) integer(psb_ipk_), allocatable, intent(out) :: iprc(:) class(psb_indx_map), intent(inout) :: idxmap integer(psb_ipk_), intent(out) :: info integer(psb_ipk_), allocatable :: hhidx(:), ladj(:) integer(psb_mpk_) :: icomm, minfo integer(psb_ipk_) :: i, err_act, hsize integer(psb_lpk_) :: nv integer(psb_lpk_) :: mglob type(psb_ctxt_type) :: ctxt integer(psb_ipk_) :: np,me, nresp logical, parameter :: gettime=.false. real(psb_dpk_) :: t0, t1, t2, t3, t4, tamx, tidx character(len=20) :: name info = psb_success_ name = 'psb_indx_map_fnd_owner' call psb_erractionsave(err_act) ctxt = idxmap%get_ctxt() icomm = idxmap%get_mpic() mglob = idxmap%get_gr() call psb_info(ctxt, me, np) if (np == -1) then info = psb_err_context_error_ call psb_errpush(info,name) goto 9999 endif if (.not.(idxmap%is_valid())) then call psb_errpush(psb_err_from_subroutine_,name,a_err='invalid idxmap') goto 9999 end if if (gettime) then t0 = psb_wtime() end if nv = size(idx) call psb_realloc(nv,iprc,info) if (info /= psb_success_) then call psb_errpush(psb_err_from_subroutine_,name,a_err='psb_realloc') goto 9999 end if if (associated(idxmap%parts)) then ! Use function shortcut !!$ write(0,*) me,trim(name),' indxmap%parts shortcut' Allocate(hhidx(np), stat=info) if (info /= psb_success_) then call psb_errpush(psb_err_from_subroutine_,name,a_err='Allocate') goto 9999 end if do i=1, nv call idxmap%parts(idx(i),mglob,np,hhidx,nresp) if (nresp > 0) then iprc(i) = hhidx(1) else iprc(i) = -1 end if end do else if (allocated(idxmap%tempvg)) then !!$ write(0,*) me,trim(name),' indxmap%tempvg shortcut' ! Use temporary vector do i=1, nv iprc(i) = idxmap%tempvg(idx(i)) end do else if (allocated(idxmap%halo_owner)) then ! ! Maybe we are coming here after a REINIT event. ! In this case, reuse the existing information as much as possible. ! block integer(psb_ipk_), allocatable :: tprc(:), lidx(:) integer(psb_lpk_), allocatable :: tidx(:) integer(psb_lpk_) :: k1, k2, nh allocate(lidx(nv),stat=info) if (info /= psb_success_) then call psb_errpush(psb_err_from_subroutine_,name,a_err='Allocate') goto 9999 end if ! ! Get local answers, if any ! call idxmap%g2l(idx,lidx,info,owned=.false.) call idxmap%qry_halo_owner(lidx,iprc,info) nh = count(iprc<0) !write(0,*) me,'Going through new impl from ',nv,' to ',nh allocate(tidx(nh),tprc(nh),stat=info) if (info /= psb_success_) then call psb_errpush(psb_err_from_subroutine_,name,a_err='Allocate') goto 9999 end if ! ! Prepare remote queries ! k2 = 0 do k1 = 1, nv if (iprc(k1) < 0) then k2 = k2 + 1 if (k2 > nh) then info = psb_err_internal_error_ call psb_errpush(info,name,a_err='Wrong auxiliary count') goto 9999 end if tidx(k2) = idx(k1) end if end do call psi_graph_fnd_owner(tidx,tprc,ladj,idxmap,info) k2 = 0 do k1 = 1, nv if (iprc(k1) < 0) then k2 = k2 + 1 if (k2 > nh) then info = psb_err_internal_error_ call psb_errpush(info,name,a_err='Wrong auxiliary count') goto 9999 end if iprc(k1) = tprc(k2) end if end do end block else call psi_graph_fnd_owner(idx,iprc,ladj,idxmap,info) end if call idxmap%xtnd_p_adjcncy(ladj) end if if (gettime) then call psb_barrier(ctxt) t1 = psb_wtime() t1 = t1 -t0 - tamx - tidx call psb_amx(ctxt,tamx) call psb_amx(ctxt,tidx) call psb_amx(ctxt,t1) if (me == psb_root_) then write(psb_out_unit,'(" fnd_owner idx time : ",es10.4)') tidx write(psb_out_unit,'(" fnd_owner amx time : ",es10.4)') tamx write(psb_out_unit,'(" fnd_owner remainedr : ",es10.4)') t1 endif end if call psb_erractionrestore(err_act) return 9999 call psb_error_handler(ctxt,err_act) return end subroutine psi_indx_map_fnd_owner