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.
265 lines
8.5 KiB
Fortran
265 lines
8.5 KiB
Fortran
!
|
|
!
|
|
! AMG4PSBLAS version 1.0
|
|
! Algebraic Multigrid Package
|
|
! based on PSBLAS (Parallel Sparse BLAS version 3.0)
|
|
!
|
|
! (C) Copyright 2008,2009,2010,2012,2013
|
|
!
|
|
! 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.
|
|
!
|
|
!
|
|
! Current version of this file contributed by:
|
|
! Ambra Abdullahi Hassan
|
|
!
|
|
!
|
|
subroutine s_mumps_solver_bld(a,desc_a,sv,info,b,amold,vmold,imold)
|
|
|
|
use psb_base_mod
|
|
use amg_s_mumps_solver
|
|
Implicit None
|
|
|
|
! Arguments
|
|
type(psb_sspmat_type) :: c
|
|
type(psb_sspmat_type), intent(in), target :: a
|
|
Type(psb_desc_type), Intent(inout) :: desc_a
|
|
class(amg_s_mumps_solver_type), intent(inout) :: sv
|
|
integer(psb_ipk_), intent(out) :: info
|
|
type(psb_sspmat_type), intent(in), target, optional :: b
|
|
class(psb_s_base_sparse_mat), intent(in), optional :: amold
|
|
class(psb_s_base_vect_type), intent(in), optional :: vmold
|
|
class(psb_i_base_vect_type), intent(in), optional :: imold
|
|
! Local variables
|
|
type(psb_sspmat_type) :: atmp
|
|
type(psb_s_coo_sparse_mat), target :: acoo
|
|
#if defined(IPK4) && defined(LPK8)
|
|
integer(psb_lpk_), allocatable :: gia(:), gja(:)
|
|
#endif
|
|
integer(psb_ipk_) :: n_row,n_col, nrow_a, nza, npr, npc
|
|
integer(psb_lpk_) :: nglob, nglobrec, nzt
|
|
integer(psb_ipk_) :: ifrst, ibcheck
|
|
type(psb_ctxt_type) :: ctxt, ctxt1
|
|
integer(psb_mpk_) :: icomm
|
|
integer(psb_ipk_) :: np, iam, me, i, err_act, debug_unit, debug_level
|
|
character(len=20) :: name='s_mumps_solver_bld', ch_err
|
|
|
|
#if defined(HAVE_MUMPS_)
|
|
|
|
info=psb_success_
|
|
|
|
call psb_erractionsave(err_act)
|
|
debug_unit = psb_get_debug_unit()
|
|
debug_level = psb_get_debug_level()
|
|
ctxt = desc_a%get_context()
|
|
call psb_info(ctxt, iam, np)
|
|
if (sv%ipar(1) == amg_local_solver_ ) then
|
|
call psb_init(ctxt1,np=1,basectxt=ctxt,ids=(/iam/))
|
|
icomm = psb_get_mpi_comm(ctxt1)
|
|
allocate(sv%local_ctxt,stat=info)
|
|
sv%local_ctxt = ctxt1
|
|
!write(*,*)iam,'mumps_bld: local +++++>',icomm,sv%local_ctxt
|
|
call psb_info(ctxt1, me, np)
|
|
npr = np
|
|
else if (sv%ipar(1) == amg_global_solver_ ) then
|
|
icomm = psb_get_mpi_comm(ctxt)
|
|
!write(*,*)iam,'mumps_bld: global +++++>',icomm,ctxt
|
|
call psb_info(ctxt, iam, np)
|
|
me = iam
|
|
npr = np
|
|
else
|
|
info = psb_err_internal_error_
|
|
call psb_errpush(info,name,&
|
|
& a_err='Invalid local/global solver in MUMPS')
|
|
goto 9999
|
|
end if
|
|
npc = 1
|
|
if (debug_level >= psb_debug_outer_) &
|
|
& write(debug_unit,*) me,' ',trim(name),' start'
|
|
! if (allocated(sv%id)) then
|
|
! call sv%free(info)
|
|
|
|
! deallocate(sv%id)
|
|
! end if
|
|
if(.not.allocated(sv%id)) then
|
|
allocate(sv%id,stat=info)
|
|
if (info /= psb_success_) then
|
|
info=psb_err_alloc_dealloc_
|
|
call psb_errpush(info,name,a_err='amg_smumps_default')
|
|
goto 9999
|
|
end if
|
|
end if
|
|
|
|
|
|
sv%id%comm = icomm
|
|
sv%id%job = -1
|
|
sv%id%par = 1
|
|
if (sv%ipar(3) == 2) then
|
|
sv%id%sym = 2
|
|
else
|
|
sv%id%sym = 0
|
|
end if
|
|
|
|
call smumps(sv%id)
|
|
!WARNING: CALLING smumps WITH JOB=-1 DESTROY THE SETTING OF DEFAULT:TO FIX
|
|
if (allocated(sv%icntl)) then
|
|
do i=1,amg_mumps_icntl_size
|
|
if (allocated(sv%icntl(i)%item)) then
|
|
!write(0,*) 'MUMPS_BLD: setting entry ',i,' to ', sv%icntl(i)%item
|
|
sv%id%icntl(i) = sv%icntl(i)%item
|
|
end if
|
|
end do
|
|
end if
|
|
if (allocated(sv%rcntl)) then
|
|
do i=1,amg_mumps_rcntl_size
|
|
if (allocated(sv%rcntl(i)%item)) sv%id%cntl(i) = sv%rcntl(i)%item
|
|
end do
|
|
end if
|
|
sv%id%icntl(3)=sv%ipar(2)
|
|
|
|
nglob = desc_a%get_global_rows()
|
|
if (sv%ipar(1) == amg_local_solver_ ) then
|
|
nglobrec=desc_a%get_local_rows()
|
|
if (sv%ipar(3) == 2) then
|
|
! Always pass the upper triangle to MUMPS
|
|
call a%triu(c,info,jmax=a%get_nrows())
|
|
call c%set_symmetric()
|
|
else
|
|
call a%csclip(c,info,jmax=a%get_nrows())
|
|
end if
|
|
call c%cp_to(acoo)
|
|
nglob = c%get_nrows()
|
|
if (nglobrec /= nglob) then
|
|
write(*,*)'WARNING: MUMPS solver does not allow overlap in AS yet. '
|
|
write(*,*)'A zero-overlap is used instead'
|
|
end if
|
|
else
|
|
call a%cp_to(acoo)
|
|
end if
|
|
nza = acoo%get_nzeros()
|
|
|
|
! switch to global numbering
|
|
if (sv%ipar(1) == amg_global_solver_ ) then
|
|
#if defined(IPK4) && defined(LPK8)
|
|
!
|
|
! Strategy here is as follows: because a call to MUMPS
|
|
! as a gobal solver is mostly done at the coarsest level,
|
|
! even if we start from a problem requiring 8 bytes, chances
|
|
! are that the global size will be suitable for 4 bytes
|
|
! anyway, so we hope for the best, and throw an error
|
|
! if something goes wrong.
|
|
!
|
|
if (nglob > huge(1_psb_ipk_)) then
|
|
write(0,*) iam,' ',trim(name),': Error: overflow of local indices '
|
|
info=psb_err_internal_error_
|
|
call psb_errpush(info,name)
|
|
goto 9999
|
|
end if
|
|
|
|
gia = acoo%ia(1:nza)
|
|
gja = acoo%ja(1:nza)
|
|
call psb_loc_to_glob(gia(1:nza), desc_a, info, iact='I')
|
|
call psb_loc_to_glob(gja(1:nza), desc_a, info, iact='I')
|
|
acoo%ia(1:nza) = gia(1:nza)
|
|
acoo%ja(1:nza) = gja(1:nza)
|
|
#else
|
|
!
|
|
! Here global and local numbers have the same size, so this must work.
|
|
!
|
|
call psb_loc_to_glob(acoo%ja(1:nza), desc_a, info, iact='I')
|
|
call psb_loc_to_glob(acoo%ia(1:nza), desc_a, info, iact='I')
|
|
#endif
|
|
if (sv%ipar(3) == 2 ) then
|
|
! Always pass the upper triangle to MUMPS
|
|
block
|
|
integer(psb_ipk_) :: j,nz
|
|
nz = 0
|
|
do j=1,nza
|
|
if (acoo%ja(j) >= acoo%ia(j)) then
|
|
nz = nz + 1
|
|
acoo%ia(nz) = acoo%ia(j)
|
|
acoo%ja(nz) = acoo%ja(j)
|
|
acoo%val(nz) = acoo%val(j)
|
|
end if
|
|
end do
|
|
call acoo%set_nzeros(nz)
|
|
call acoo%set_triangle()
|
|
call acoo%set_upper()
|
|
call acoo%set_symmetric()
|
|
end block
|
|
end if
|
|
end if
|
|
sv%id%irn_loc => acoo%ia
|
|
sv%id%jcn_loc => acoo%ja
|
|
sv%id%a_loc => acoo%val
|
|
sv%id%icntl(18) = 3
|
|
sv%id%n = nglob
|
|
! there should be a better way for this
|
|
sv%id%nnz_loc = acoo%get_nzeros()
|
|
sv%id%nnz = acoo%get_nzeros()
|
|
sv%id%job = 4
|
|
if (sv%ipar(1) == amg_global_solver_ ) then
|
|
call psb_sum(ctxt,sv%id%nnz)
|
|
end if
|
|
!call psb_barrier(ctxt)
|
|
write(*,*)iam, ' calling mumps N,nz,nz_loc',sv%id%n,sv%id%nnz,sv%id%nnz_loc
|
|
call smumps(sv%id)
|
|
!call psb_barrier(ctxt)
|
|
info = sv%id%infog(1)
|
|
if (info /= psb_success_) then
|
|
info=psb_err_from_subroutine_
|
|
ch_err='amg_smumps_fact '
|
|
call psb_errpush(info,name,a_err=ch_err)
|
|
goto 9999
|
|
end if
|
|
nullify(sv%id%irn)
|
|
nullify(sv%id%jcn)
|
|
nullify(sv%id%a)
|
|
|
|
call acoo%free()
|
|
sv%built=.true.
|
|
|
|
if (debug_level >= psb_debug_outer_) &
|
|
& write(debug_unit,*) iam,' ',trim(name),' end'
|
|
|
|
call psb_erractionrestore(err_act)
|
|
return
|
|
|
|
9999 continue
|
|
call psb_erractionrestore(err_act)
|
|
if (err_act == psb_act_abort_) then
|
|
call psb_error()
|
|
return
|
|
end if
|
|
return
|
|
#else
|
|
write(psb_err_unit,*) "MUMPS Not Configured, fix make.inc and recompile "
|
|
#endif
|
|
end subroutine s_mumps_solver_bld
|
|
|