!!$ !!$ 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_dspasb.f90 ! ! Subroutine: psb_dspasb ! Assembly sparse matrix and set psblas communications ! structures. ! ! Parameters: ! a - type(). The sparse matrix to be allocated. ! desc_a - type(). The communication descriptor to be updated. ! info - integer. Eventually returns an error code. ! afmt - character,dimension(5)(optional). The output format. ! up - character(optional). ??? ! dup - integer(optional). ??? ! subroutine psb_dspasb(a,desc_a, info, afmt, upd, dupl) use psb_descriptor_type use psb_spmat_type use psb_serial_mod use psb_const_mod use psi_mod use psb_error_mod use psb_string_mod use psb_penv_mod implicit none !...Parameters.... type(psb_dspmat_type), intent (inout) :: a type(psb_desc_type), intent(in) :: desc_a integer, intent(out) :: info integer,optional, intent(in) :: dupl, upd character, optional, intent(in) :: afmt*5 !....Locals.... integer :: int_err(5) type(psb_dspmat_type) :: atemp integer :: np,me,n_col,iout, err_act integer :: dscstate, spstate integer :: upd_, dupl_ integer :: ictxt,n_row logical, parameter :: debug=.false., debugwrt=.false. character(len=20) :: name, ch_err info = 0 int_err(1)=0 name = 'psb_spasb' call psb_erractionsave(err_act) ictxt = psb_cd_get_context(desc_a) dscstate = psb_cd_get_dectype(desc_a) n_row = psb_cd_get_local_rows(desc_a) n_col = psb_cd_get_local_cols(desc_a) ! 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_asb_dec(dscstate)) then info = 600 int_err(1) = dscstate call psb_errpush(info,name) goto 9999 endif if (debug) Write (*, *) ' Begin matrix assembly...' !check on errors encountered in psdspins spstate = a%infoa(psb_state_) if (spstate == psb_spmat_bld_) then ! ! First case: we come from a fresh build. ! n_row = psb_cd_get_local_rows(desc_a) n_col = psb_cd_get_local_cols(desc_a) ! ! Second step: handle the local matrix part. ! if (present(upd)) then upd_=upd else upd_ = psb_upd_dflt_ endif if (present(dupl)) then select case(dupl) case (psb_dupl_ovwrt_,psb_dupl_add_,psb_dupl_err_) dupl_ = dupl case default dupl_ = psb_dupl_def_ end select else dupl_ = psb_dupl_def_ endif a%m = n_row a%k = n_col call psb_sp_clone(a,atemp,info) if(info /= psb_no_err_) then info=4010 ch_err='psb_sp_clone' call psb_errpush(info,name,a_err=ch_err) goto 9999 ! convert to user requested format after the temp copy end if if (present(afmt)) then a%fida = afmt else a%fida = '???' endif if (debugwrt) then iout = 30+me open(iout) call psb_csprt(iout,atemp,head='Input mat') close(iout) endif ! Do the real conversion into the requested storage format ! result is put in A call psb_csdp(atemp,a,info,ifc=2,upd=upd_,dupl=dupl_) IF (debug) WRITE (*, *) me,' ASB: From DCSDP',info,' ',A%FIDA if (info /= psb_no_err_) then info=4010 ch_err='psb_csdp' call psb_errpush(info,name,a_err=ch_err) goto 9999 endif if (debugwrt) then iout = 60+me open(iout) call psb_csprt(iout,a,head='Output mat') close(iout) endif call psb_sp_free(atemp,info) else if (spstate == psb_spmat_upd_) then ! ! Second case: we come from an update loop. ! ! Right now, almost nothing to be done, but this ! may change in the future ! as we revise the implementation of the update routine. call psb_sp_all(atemp,1,info) atemp%m=a%m atemp%k=a%k ! check on allocation if (info /= psb_no_err_) then info=4010 ch_err='psb_sp_all' call psb_errpush(info,name,a_err=ch_err) goto 9999 endif call psb_csdp(atemp,a,info,check='R') ! check on error retuned by dcsdp if (info /= psb_no_err_) then info = 4010 ch_err='psb_csdp90' call psb_errpush(info,name,a_err=ch_err) goto 9999 end if call psb_sp_free(atemp,info) if (info /= psb_no_err_) then info = 4010 ch_err='sp_free' call psb_errpush(info,name,a_err=ch_err) goto 9999 end if else info = 600 call psb_errpush(info,name) goto 9999 if (debug) write(0,*) 'Sparse matrix state:',spstate,psb_spmat_bld_,psb_spmat_upd_ endif call psb_erractionrestore(err_act) return 9999 continue call psb_erractionrestore(err_act) if (err_act == psb_act_abort_) then call psb_error(ictxt) return end if return end subroutine psb_dspasb