You cannot select more than 25 topics Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
psblas3/base/tools/psb_cdasb.f90

172 lines
5.4 KiB
Fortran

!!$
!!$ 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. 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: psb_cdasb.f90
!
! Subroutine: psb_cdasb
! Assembly the psblas communications descriptor.
!
! Parameters:
! desc_a - type(<psb_desc_type>). The communication descriptor.
! info - integer. Eventually returns an error code.
subroutine psb_cdasb(desc_a,info)
use psb_descriptor_type
use psb_serial_mod
use psb_const_mod
use psi_mod
use psb_error_mod
use psb_penv_mod
implicit none
include 'mpif.h'
!...Parameters....
type(psb_desc_type), intent(inout) :: desc_a
integer, intent(out) :: info
!....Locals....
integer :: int_err(5), itemp(2)
integer,allocatable :: ovrlap_index(:),halo_index(:)
integer :: i,j,err,np,me,lovrlap,lhalo,nhalo,novrlap,max_size,&
& max_halo,n_col,ldesc_halo, ldesc_ovrlap, dectype, err_act, &
& key, ih, nh, idx, nk,icomm,hsize
integer :: ictxt,n_row
logical, parameter :: debug=.false., debugwrt=.false.
character(len=20) :: name,ch_err
info = 0
int_err(1) = 0
name = 'psb_cdasb'
call psb_erractionsave(err_act)
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 (debug) write (0, *) ' Begin matrix assembly...'
if (psb_is_bld_desc(desc_a)) then
if (debug) write(0,*) 'psb_cdasb: 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 /= no_err) then
call psb_errpush(info,name,i_err=int_err)
goto 9999
endif
call psb_realloc(psb_cd_get_local_cols(desc_a),desc_a%loc_to_glob,info)
if (psb_is_large_desc(desc_a)) then
call psi_ldsc_pre_halo(desc_a,info)
end if
call psb_transfer(desc_a%ovrlap_index,ovrlap_index,info)
call psb_transfer(desc_a%halo_index,halo_index,info)
call psi_cnv_dsc(halo_index,ovrlap_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, stat=info)
if (info /= 0) then
info =4000
call psb_errpush(info,name)
goto 9999
end if
if (psb_is_large_dec(dectype) ) then
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
desc_a%matrix_data(psb_dec_type_) = psb_desc_large_asb_
!!$ write(0,*) 'Done large dec asmbly',desc_a%matrix_data(psb_dec_type_),&
!!$ & psb_desc_large_asb_,psb_is_asb_dec(desc_a%matrix_data(psb_dec_type_))
else
! Ok, register into MATRIX_DATA & free temporary work areas
desc_a%matrix_data(psb_dec_type_) = psb_desc_asb_
endif
else
info = 600
call psb_errpush(info,name)
goto 9999
if (debug) write(0,*) 'dectype 2 :',dectype,psb_desc_bld_,&
&psb_desc_asb_,psb_desc_upd_
endif
call psb_erractionrestore(err_act)
return
9999 continue
call psb_erractionrestore(err_act)
if (err_act.eq.act_ret) then
return
else
call psb_error(ictxt)
end if
return
end subroutine psb_cdasb