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.
140 lines
4.4 KiB
Fortran
140 lines
4.4 KiB
Fortran
!
|
|
!
|
|
! AMG4PSBLAS version 1.0
|
|
! Algebraic Multigrid Package
|
|
! based on PSBLAS (Parallel Sparse BLAS version 3.7)
|
|
!
|
|
! (C) Copyright 2021
|
|
!
|
|
! Salvatore Filippone
|
|
! Pasqua D'Ambra
|
|
! Fabio Durastante
|
|
!
|
|
! 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 AMG4PSBLAS 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 AMG4PSBLAS 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.
|
|
!
|
|
!
|
|
!
|
|
!
|
|
! verbosity:
|
|
! <0: suppress all messages
|
|
! 0: normal
|
|
! >1: increased details
|
|
!
|
|
subroutine amg_c_base_onelev_descr(lv,il,nl,ilmin,info,iout,verbosity)
|
|
|
|
use psb_base_mod
|
|
use amg_c_onelev_mod, amg_protect_name => amg_c_base_onelev_descr
|
|
Implicit None
|
|
! Arguments
|
|
class(amg_c_onelev_type), intent(in) :: lv
|
|
integer(psb_ipk_), intent(in) :: il,nl,ilmin
|
|
integer(psb_ipk_), intent(out) :: info
|
|
integer(psb_ipk_), intent(in), optional :: iout
|
|
integer(psb_ipk_), intent(in), optional :: verbosity
|
|
|
|
|
|
! Local variables
|
|
integer(psb_ipk_) :: err_act
|
|
character(len=20), parameter :: name='amg_c_base_onelev_descr'
|
|
integer(psb_ipk_) :: iout_, verbosity_
|
|
logical :: coarse
|
|
|
|
|
|
call psb_erractionsave(err_act)
|
|
|
|
|
|
coarse = (il==nl)
|
|
|
|
if (present(iout)) then
|
|
iout_ = iout
|
|
else
|
|
iout_ = psb_out_unit
|
|
end if
|
|
|
|
if (present(verbosity)) then
|
|
verbosity_ = verbosity
|
|
else
|
|
verbosity_ = 0
|
|
end if
|
|
if (verbosity_ < 0) goto 9998
|
|
|
|
write(iout_,*)
|
|
if (il == ilmin) then
|
|
call lv%parms%mlcycledsc(iout_,info)
|
|
if (allocated(lv%aggr)) then
|
|
call lv%aggr%descr(lv%parms,iout_,info)
|
|
else
|
|
write(iout_,*) 'Internal error: unallocated aggregator object'
|
|
info = psb_err_internal_error_
|
|
call psb_errpush(info,name)
|
|
goto 9999
|
|
end if
|
|
write(iout_,*)
|
|
end if
|
|
|
|
if (il > 1) then
|
|
|
|
if (coarse) then
|
|
write(iout_,*) ' Level ',il,' (coarse)'
|
|
else
|
|
write(iout_,*) ' Level ',il
|
|
end if
|
|
|
|
call lv%parms%descr(iout_,info,coarse=coarse)
|
|
|
|
if (nl > 1) then
|
|
if (allocated(lv%linmap%naggr)) then
|
|
write(iout_,*) ' Coarse Matrix: Global size: ', &
|
|
& lv%linmap%nagtot
|
|
write(iout_,*) ' Nonzeros: ',lv%ac_nz_tot
|
|
if (verbosity_>0) then
|
|
write(iout_,*) ' Local matrix sizes: ', &
|
|
& lv%linmap%naggr(:)
|
|
else
|
|
write(iout_,'(2(a,1x,i12))') &
|
|
& ' Local matrix sizes: min:', &
|
|
& lv%linmap%nagmin,' max:', lv%linmap%nagmax
|
|
write(iout_,'(a,1x,f14.1)') &
|
|
& ' avg:', &
|
|
& lv%linmap%nagavg
|
|
end if
|
|
write(iout_,'(a,1x,f14.2)') ' Aggregation ratio: ', &
|
|
& lv%szratio
|
|
end if
|
|
end if
|
|
|
|
if (coarse.and.allocated(lv%sm)) &
|
|
& call lv%sm%descr(info,iout=iout_,coarse=coarse)
|
|
end if
|
|
|
|
9998 continue
|
|
call psb_erractionrestore(err_act)
|
|
return
|
|
|
|
9999 call psb_error_handler(err_act)
|
|
return
|
|
|
|
end subroutine amg_c_base_onelev_descr
|