!!$ !!$ Parallel Sparse BLAS v2.0 !!$ (C) Copyright 2006 Salvatore Filippone University of Rome Tor Vergata !!$ Alfredo Buttari University of Rome Tor Vergata !!$ !!$ 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. 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File: psb_icdasb.f90 ! ! Subroutine: psb_icdasb ! Assemble the psblas communications descriptor: inner part. ! The user callable routine is defined in the psb_tools_mod module. ! ! Arguments: ! desc_a - type(psb_desc_type). The communication descriptor. ! info - integer. return code. ! ext_hv - logical Essentially this distinguishes a call ! coming from the build of an extended ! halo descriptor with respect to a "normal" ! call. ! subroutine psb_icdasb(desc_a,info,ext_hv) use psb_descriptor_type use psb_serial_mod use psb_const_mod use psi_mod use psb_error_mod use psb_penv_mod #ifdef MPI_MOD use mpi #endif implicit none #ifdef MPI_H include 'mpif.h' #endif !...Parameters.... type(psb_desc_type), intent(inout) :: desc_a integer, intent(out) :: info logical, intent(in), optional :: ext_hv !....Locals.... integer :: int_err(5) integer,allocatable :: ovrlap_index(:),halo_index(:), ext_index(:) integer :: i,np,me, n_col, dectype, err_act, icomm integer :: ictxt,n_row logical :: ext_hv_ integer :: debug_level, debug_unit character(len=20) :: name info = 0 int_err(1) = 0 name = 'psb_cdasb' call psb_erractionsave(err_act) debug_unit = psb_get_debug_unit() debug_level = psb_get_debug_level() ictxt = psb_cd_get_context(desc_a) dectype = psb_cd_get_dectype(desc_a) n_row = psb_cd_get_local_rows(desc_a) n_col = psb_cd_get_local_cols(desc_a) call psb_get_mpicomm(ictxt,icomm ) ! check on blacs grid call psb_info(ictxt, me, np) if (np == -1) then info = 2010 call psb_errpush(info,name) goto 9999 endif if (.not.psb_is_ok_desc(desc_a)) then info = 600 int_err(1) = dectype call psb_errpush(info,name) goto 9999 endif if (present(ext_hv)) then ext_hv_ = ext_hv else ext_hv_ = .false. end if if (debug_level >= psb_debug_ext_) & & write(debug_unit, *) me,' ',trim(name),': start' if (psb_is_bld_desc(desc_a)) then if (debug_level >= psb_debug_ext_) & & write(debug_unit,*) me,' ',trim(name),': Checking rows insertion' ! check if all local row are inserted do i=1,psb_cd_get_local_cols(desc_a) if (desc_a%loc_to_glob(i) < 0) then info=3100 exit endif enddo if (info /= psb_no_err_) then call psb_errpush(info,name,i_err=int_err) goto 9999 endif ! Trim size of loc_to_glob component. call psb_realloc(psb_cd_get_local_cols(desc_a),desc_a%loc_to_glob,info) ! If large index space, we have to pre-process and rebuild ! the list of halo indices as if it was in small index space if (psb_is_large_desc(desc_a)) then if (debug_level >= psb_debug_ext_) & & write(debug_unit,*) me,' ',trim(name),': Large descriptor, calling ldsc_pre_halo' call psi_ldsc_pre_halo(desc_a,ext_hv_,info) end if ! Take out the lists for ovrlap, halo and ext... call psb_transfer(desc_a%ovrlap_index,ovrlap_index,info) call psb_transfer(desc_a%halo_index,halo_index,info) call psb_transfer(desc_a%ext_index,ext_index,info) if (debug_level >= psb_debug_ext_) & & write(debug_unit,*) me,' ',trim(name),': Final conversion' ! Then convert and put them back where they belong. call psi_cnv_dsc(halo_index,ovrlap_index,ext_index,desc_a,info) if (info /= 0) then call psb_errpush(4010,name,a_err='psi_cnv_dsc') goto 9999 end if deallocate(ovrlap_index, halo_index, ext_index, stat=info) if (info /= 0) then info =4000 call psb_errpush(info,name) goto 9999 end if ! Finally, cleanup the AVL tree of indices, if any, as it is ! only needed while in the build state. if (allocated(desc_a%ptree)) then call FreePairSearchTree(desc_a%ptree) deallocate(desc_a%ptree,stat=info) if (info /= 0) then info=2059 call psb_errpush(info,name) goto 9999 end if end if ! Ok, register into MATRIX_DATA desc_a%matrix_data(psb_dec_type_) = psb_desc_asb_ else info = 600 call psb_errpush(info,name) goto 9999 endif if (debug_level >= psb_debug_ext_) & & write(debug_unit,*) me,' ',trim(name),': Done' call psb_erractionrestore(err_act) return 9999 continue call psb_erractionrestore(err_act) if (err_act.eq.psb_act_ret_) then return else call psb_error(ictxt) end if return end subroutine psb_icdasb