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mld2p4-2:

Browse Source 
Further  update of documentation.
stopcriterion
Salvatore Filippone 12 years ago
parent b708fb1a6b
commit fee1fc289f
4 changed files with 114 additions and 416 deletions
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19
tests/newslv/Makefile
Unescape Escape View File

@ -1,6 +1,5 @@
MLDDIR=../..
include $(MLDDIR)/Make.inc
include $(MLDDIR)/Make.inc
PSBLIBDIR=$(PSBLASDIR)/lib/
PSBINCDIR=$(PSBLASDIR)/include
MLDLIBDIR=$(MLDDIR)/lib
@ -8,27 +7,23 @@ MLD_LIB=-L$(MLDLIBDIR) -lpsb_krylov -lmld_prec -lpsb_prec
PSBLAS_LIB= -L$(PSBLIBDIR) -lpsb_util -lpsb_base
FINCLUDES=$(FMFLAG). $(FMFLAG)$(MLDLIBDIR) $(FMFLAG)$(PSBINCDIR) $(FIFLAG).
PDOBJS=ppde.o data_input.o mld_d_tlu_solver.o
PD3DOBJS=ppde3d.o data_input.o mld_d_tlu_solver.o mld_d_tlu_solver_impl.o
PSOBJS=spde.o data_input.o
EXEDIR=./runs
all: ppde spde
all: ppde3d
ppde: $(PDOBJS)
$(F90LINK) $(PDOBJS) -o ppde $(MLD_LIB) $(PSBLAS_LIB) $(LDLIBS)
/bin/mv ppde $(EXEDIR)
ppde3d: $(PD3DOBJS)
$(F90LINK) $(PD3DOBJS) -o ppde3d $(MLD_LIB) $(PSBLAS_LIB) $(LDLIBS)
/bin/mv ppde3d $(EXEDIR)
spde: $(PSOBJS)
$(F90LINK) $(PSOBJS) -o spde $(MLD_LIB) $(PSBLAS_LIB) $(LDLIBS)
/bin/mv spde $(EXEDIR)
ppde.o spde.o: data_input.o
ppde.o: mld_d_tlu_solver.o
ppde3d.o mld_d_tlu_solver_impl.o: data_input.o mld_d_tlu_solver.o
clean:
/bin/rm -f $(PDOBJS) $(EXEDIR)/ppde $(PSOBJS) $(EXEDIR)/spde
/bin/rm -f $(PD3DOBJS) $(EXEDIR)/ppde3d
verycleanlib:
(cd ../..; make veryclean)

477
tests/newslv/mld_d_tlu_solver.f90
Unescape Escape View File

@ -45,24 +45,28 @@
module mld_d_tlu_solver
use mld_d_prec_type
use mld_d_base_solver_mod
use mld_d_ilu_fact_mod
type, extends(mld_d_base_solver_type) :: mld_d_tlu_solver_type
type(psb_dspmat_type) :: l, u
real(psb_dpk_), allocatable :: d(:)
type(psb_d_vect_type) :: dv
integer :: fact_type, fill_in
real(psb_dpk_) :: thresh
contains
procedure, pass(sv) :: dump => d_tlu_solver_dmp
procedure, pass(sv) :: build => d_tlu_solver_bld
procedure, pass(sv) :: apply => d_tlu_solver_apply
procedure, pass(sv) :: dump => mld_d_tlu_solver_dmp
procedure, pass(sv) :: build => mld_d_tlu_solver_bld
procedure, pass(sv) :: apply_v => mld_d_tlu_solver_apply_vect
procedure, pass(sv) :: apply_a => mld_d_tlu_solver_apply
procedure, pass(sv) :: free => d_tlu_solver_free
procedure, pass(sv) :: seti => d_tlu_solver_seti
procedure, pass(sv) :: setc => d_tlu_solver_setc
procedure, pass(sv) :: setr => d_tlu_solver_setr
procedure, pass(sv) :: descr => d_tlu_solver_descr
procedure, pass(sv) :: sizeof => d_tlu_solver_sizeof
procedure, pass(sv) :: default => d_tlu_solver_default
procedure, pass(sv) :: sizeof => d_tlu_solver_sizeof
procedure, pass(sv) :: get_nzeros => d_tlu_solver_get_nzeros
end type mld_d_tlu_solver_type
@ -70,62 +74,81 @@ module mld_d_tlu_solver
& d_tlu_solver_free, d_tlu_solver_seti, &
& d_tlu_solver_setc, d_tlu_solver_setr,&
& d_tlu_solver_descr, d_tlu_solver_sizeof, &
& d_tlu_solver_default, d_tlu_solver_dmp
& d_tlu_solver_default, d_tlu_solver_dmp, &
& d_tlu_solver_apply_vect, d_tlu_solver_get_nzeros
character(len=15), parameter, private :: &
& fact_names(0:mld_slv_delta_+4)=(/&
& 'none ','none ',&
& 'none ','none ',&
& 'none ','DIAG ?? ',&
& 'TLU(n) ',&
& 'MTLU(n) ','TLU(t,n) '/)
interface mld_ilu0_fact
subroutine mld_dilu0_fact(ialg,a,l,u,d,info,blck,upd)
use psb_base_mod, only : psb_dspmat_type, psb_dpk_
integer, intent(in) :: ialg
interface
subroutine mld_d_tlu_solver_apply_vect(alpha,sv,x,beta,y,desc_data,trans,work,info)
import :: psb_desc_type, mld_d_tlu_solver_type, psb_d_vect_type, psb_dpk_, &
& psb_dspmat_type, psb_d_base_sparse_mat, psb_d_base_vect_type
type(psb_desc_type), intent(in) :: desc_data
class(mld_d_tlu_solver_type), intent(inout) :: sv
type(psb_d_vect_type),intent(inout) :: x
type(psb_d_vect_type),intent(inout) :: y
real(psb_dpk_),intent(in) :: alpha,beta
character(len=1),intent(in) :: trans
real(psb_dpk_),target, intent(inout) :: work(:)
integer, intent(out) :: info
type(psb_dspmat_type),intent(in) :: a
type(psb_dspmat_type),intent(inout) :: l,u
type(psb_dspmat_type),intent(in), optional, target :: blck
character, intent(in), optional :: upd
real(psb_dpk_), intent(inout) :: d(:)
end subroutine mld_dilu0_fact
end subroutine mld_d_tlu_solver_apply_vect
end interface
interface mld_iluk_fact
subroutine mld_diluk_fact(fill_in,ialg,a,l,u,d,info,blck)
use psb_base_mod, only : psb_dspmat_type, psb_dpk_
integer, intent(in) :: fill_in,ialg
interface
subroutine mld_d_tlu_solver_apply(alpha,sv,x,beta,y,desc_data,trans,work,info)
import :: psb_desc_type, mld_d_tlu_solver_type, psb_d_vect_type, psb_dpk_, &
& psb_dspmat_type, psb_d_base_sparse_mat, psb_d_base_vect_type
type(psb_desc_type), intent(in) :: desc_data
class(mld_d_tlu_solver_type), intent(in) :: sv
real(psb_dpk_),intent(inout) :: x(:)
real(psb_dpk_),intent(inout) :: y(:)
real(psb_dpk_),intent(in) :: alpha,beta
character(len=1),intent(in) :: trans
real(psb_dpk_),target, intent(inout) :: work(:)
integer, intent(out) :: info
type(psb_dspmat_type),intent(in) :: a
type(psb_dspmat_type),intent(inout) :: l,u
type(psb_dspmat_type),intent(in), optional, target :: blck
real(psb_dpk_), intent(inout) :: d(:)
end subroutine mld_diluk_fact
end subroutine mld_d_tlu_solver_apply
end interface
interface mld_ilut_fact
subroutine mld_dilut_fact(fill_in,thres,a,l,u,d,info,blck)
use psb_base_mod, only : psb_dspmat_type, psb_dpk_
integer, intent(in) :: fill_in
real(psb_dpk_), intent(in) :: thres
interface
subroutine mld_d_tlu_solver_bld(a,desc_a,sv,upd,info,b,amold,vmold)
import :: psb_desc_type, mld_d_tlu_solver_type, psb_d_vect_type, psb_dpk_, &
& psb_dspmat_type, psb_d_base_sparse_mat, psb_d_base_vect_type
type(psb_dspmat_type), intent(in), target :: a
Type(psb_desc_type), Intent(in) :: desc_a
class(mld_d_tlu_solver_type), intent(inout) :: sv
character, intent(in) :: upd
integer, intent(out) :: info
type(psb_dspmat_type),intent(in) :: a
type(psb_dspmat_type),intent(inout) :: l,u
type(psb_dspmat_type),intent(in), optional, target :: blck
real(psb_dpk_), intent(inout) :: d(:)
end subroutine mld_dilut_fact
type(psb_dspmat_type), intent(in), target, optional :: b
class(psb_d_base_sparse_mat), intent(in), optional :: amold
class(psb_d_base_vect_type), intent(in), optional :: vmold
end subroutine mld_d_tlu_solver_bld
end interface
character(len=15), parameter, private :: &
& fact_names(0:mld_slv_delta_+4)=(/&
& 'none ','none ',&
& 'none ','none ',&
& 'none ','DIAG ?? ',&
& 'ILU(n) ',&
& 'MILU(n) ','ILU(t,n) '/)
interface
subroutine mld_d_tlu_solver_dmp(sv,ictxt,level,info,prefix,head,solver)
import :: psb_desc_type, mld_d_tlu_solver_type, psb_d_vect_type, psb_dpk_, &
& psb_dspmat_type, psb_d_base_sparse_mat, psb_d_base_vect_type
class(mld_d_tlu_solver_type), intent(in) :: sv
integer, intent(in) :: ictxt,level
integer, intent(out) :: info
character(len=*), intent(in), optional :: prefix, head
logical, optional, intent(in) :: solver
end subroutine mld_d_tlu_solver_dmp
end interface
contains
subroutine d_tlu_solver_default(sv)
use psb_base_mod
Implicit None
! Arguments
@ -140,8 +163,6 @@ contains
subroutine d_tlu_solver_check(sv,info)
use psb_base_mod
Implicit None
! Arguments
@ -162,7 +183,7 @@ contains
& 'Level',0,is_legal_ml_lev)
case(mld_ilu_t_)
call mld_check_def(sv%thresh,&
& 'Eps',dzero,is_legal_fact_thrs)
& 'Eps',dzero,is_legal_d_fact_thrs)
end select
if (info /= psb_success_) goto 9999
@ -180,287 +201,8 @@ contains
end subroutine d_tlu_solver_check
subroutine d_tlu_solver_apply(alpha,sv,x,beta,y,desc_data,trans,work,info)
use psb_base_mod
type(psb_desc_type), intent(in) :: desc_data
class(mld_d_tlu_solver_type), intent(in) :: sv
real(psb_dpk_),intent(in) :: x(:)
real(psb_dpk_),intent(inout) :: y(:)
real(psb_dpk_),intent(in) :: alpha,beta
character(len=1),intent(in) :: trans
real(psb_dpk_),target, intent(inout) :: work(:)
integer, intent(out) :: info
integer :: n_row,n_col
real(psb_dpk_), pointer :: ww(:), aux(:), tx(:),ty(:)
integer :: ictxt,np,me,i, err_act
character :: trans_
character(len=20) :: name='d_tlu_solver_apply'
call psb_erractionsave(err_act)
info = psb_success_
trans_ = psb_toupper(trans)
select case(trans_)
case('N')
case('T','C')
case default
call psb_errpush(psb_err_iarg_invalid_i_,name)
goto 9999
end select
n_row = psb_cd_get_local_rows(desc_data)
n_col = psb_cd_get_local_cols(desc_data)
if (n_col <= size(work)) then
ww => work(1:n_col)
if ((4*n_col+n_col) <= size(work)) then
aux => work(n_col+1:)
else
allocate(aux(4*n_col),stat=info)
if (info /= psb_success_) then
info=psb_err_alloc_request_
call psb_errpush(info,name,i_err=(/4*n_col,0,0,0,0/),&
& a_err='real(psb_dpk_)')
goto 9999
end if
endif
else
allocate(ww(n_col),aux(4*n_col),stat=info)
if (info /= psb_success_) then
info=psb_err_alloc_request_
call psb_errpush(info,name,i_err=(/5*n_col,0,0,0,0/),&
& a_err='real(psb_dpk_)')
goto 9999
end if
endif
select case(trans_)
case('N')
call psb_spsm(done,sv%l,x,dzero,ww,desc_data,info,&
& trans=trans_,scale='L',diag=sv%d,choice=psb_none_,work=aux)
if (info == psb_success_) call psb_spsm(alpha,sv%u,ww,beta,y,desc_data,info,&
& trans=trans_,scale='U',choice=psb_none_, work=aux)
case('T','C')
call psb_spsm(done,sv%u,x,dzero,ww,desc_data,info,&
& trans=trans_,scale='L',diag=sv%d,choice=psb_none_,work=aux)
if (info == psb_success_) call psb_spsm(alpha,sv%l,ww,beta,y,desc_data,info,&
& trans=trans_,scale='U',choice=psb_none_,work=aux)
case default
call psb_errpush(psb_err_internal_error_,name,&
& a_err='Invalid TRANS in ILU subsolve')
goto 9999
end select
if (info /= psb_success_) then
call psb_errpush(psb_err_internal_error_,name,&
& a_err='Error in subsolve')
goto 9999
endif
if (n_col <= size(work)) then
if ((4*n_col+n_col) <= size(work)) then
else
deallocate(aux)
endif
else
deallocate(ww,aux)
endif
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
end subroutine d_tlu_solver_apply
subroutine d_tlu_solver_bld(a,desc_a,sv,upd,info,b)
use psb_base_mod
Implicit None
! Arguments
type(psb_dspmat_type), intent(in), target :: a
Type(psb_desc_type), Intent(in) :: desc_a
class(mld_d_tlu_solver_type), intent(inout) :: sv
character, intent(in) :: upd
integer, intent(out) :: info
type(psb_dspmat_type), intent(in), target, optional :: b
! Local variables
integer :: n_row,n_col, nrow_a, nztota
real(psb_dpk_), pointer :: ww(:), aux(:), tx(:),ty(:)
integer :: ictxt,np,me,i, err_act, debug_unit, debug_level
character(len=20) :: name='d_tlu_solver_bld', ch_err
info=psb_success_
call psb_erractionsave(err_act)
debug_unit = psb_get_debug_unit()
debug_level = psb_get_debug_level()
ictxt = psb_cd_get_context(desc_a)
call psb_info(ictxt, me, np)
if (debug_level >= psb_debug_outer_) &
& write(debug_unit,*) me,' ',trim(name),' start'
n_row = psb_cd_get_local_rows(desc_a)
if (psb_toupper(upd) == 'F') then
nrow_a = a%get_nrows()
nztota = a%get_nzeros()
if (present(b)) then
nztota = nztota + b%get_nzeros()
end if
call sv%l%csall(n_row,n_row,info,nztota)
if (info == psb_success_) call sv%u%csall(n_row,n_row,info,nztota)
if(info /= psb_success_) then
info=psb_err_from_subroutine_
ch_err='psb_sp_all'
call psb_errpush(info,name,a_err=ch_err)
goto 9999
end if
if (allocated(sv%d)) then
if (size(sv%d) < n_row) then
deallocate(sv%d)
endif
endif
if (.not.allocated(sv%d)) then
allocate(sv%d(n_row),stat=info)
if (info /= psb_success_) then
call psb_errpush(psb_err_from_subroutine_,name,a_err='Allocate')
goto 9999
end if
endif
select case(sv%fact_type)
case (mld_ilu_t_)
!
! ILU(k,t)
!
select case(sv%fill_in)
case(:-1)
! Error: fill-in <= -1
call psb_errpush(psb_err_input_value_invalid_i_,&
& name,i_err=(/3,sv%fill_in,0,0,0/))
goto 9999
case(0:)
! Fill-in >= 0
call mld_ilut_fact(sv%fill_in,sv%thresh,&
& a, sv%l,sv%u,sv%d,info,blck=b)
end select
if(info /= psb_success_) then
info=psb_err_from_subroutine_
ch_err='mld_ilut_fact'
call psb_errpush(info,name,a_err=ch_err)
goto 9999
end if
case(mld_ilu_n_,mld_milu_n_)
!
! ILU(k) and MILU(k)
!
select case(sv%fill_in)
case(:-1)
! Error: fill-in <= -1
call psb_errpush(psb_err_input_value_invalid_i_,&
& name,i_err=(/3,sv%fill_in,0,0,0/))
goto 9999
case(0)
! Fill-in 0
! Separate implementation of ILU(0) for better performance.
! There seems to be a problem with the separate implementation of MILU(0),
! contained into mld_ilu0_fact. This must be investigated. For the time being,
! resort to the implementation of MILU(k) with k=0.
if (sv%fact_type == mld_ilu_n_) then
call mld_ilu0_fact(sv%fact_type,a,sv%l,sv%u,&
& sv%d,info,blck=b,upd=upd)
else
call mld_iluk_fact(sv%fill_in,sv%fact_type,&
& a,sv%l,sv%u,sv%d,info,blck=b)
endif
case(1:)
! Fill-in >= 1
! The same routine implements both ILU(k) and MILU(k)
call mld_iluk_fact(sv%fill_in,sv%fact_type,&
& a,sv%l,sv%u,sv%d,info,blck=b)
end select
if (info /= psb_success_) then
info=psb_err_from_subroutine_
ch_err='mld_iluk_fact'
call psb_errpush(info,name,a_err=ch_err)
goto 9999
end if
case default
! If we end up here, something was wrong up in the call chain.
info = psb_err_input_value_invalid_i_
call psb_errpush(psb_err_input_value_invalid_i_,name,&
& i_err=(/3,sv%fact_type,0,0,0/))
goto 9999
end select
else
! Here we should add checks for reuse of L and U.
! For the time being just throw an error.
info = 31
call psb_errpush(info, name, i_err=(/3,0,0,0,0/),a_err=upd)
goto 9999
!
! What is an update of a factorization??
! A first attempt could be to reuse EXACTLY the existing indices
! as if it was an ILU(0) (since, effectively, the sparsity pattern
! should not grow beyond what is already there).
!
call mld_ilu0_fact(sv%fact_type,a,&
& sv%l,sv%u,&
& sv%d,info,blck=b,upd=upd)
end if
call sv%l%set_asb()
call sv%l%trim()
call sv%u%set_asb()
call sv%u%trim()
if (debug_level >= psb_debug_outer_) &
& write(debug_unit,*) me,' ',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
end subroutine d_tlu_solver_bld
subroutine d_tlu_solver_seti(sv,what,val,info)
use psb_base_mod
Implicit None
! Arguments
@ -498,8 +240,6 @@ contains
subroutine d_tlu_solver_setc(sv,what,val,info)
use psb_base_mod
Implicit None
! Arguments
@ -536,8 +276,6 @@ contains
subroutine d_tlu_solver_setr(sv,what,val,info)
use psb_base_mod
Implicit None
! Arguments
@ -574,8 +312,6 @@ contains
subroutine d_tlu_solver_free(sv,info)
use psb_base_mod
Implicit None
! Arguments
@ -597,6 +333,7 @@ contains
end if
call sv%l%free()
call sv%u%free()
call sv%dv%free(info)
call psb_erractionrestore(err_act)
return
@ -612,8 +349,6 @@ contains
subroutine d_tlu_solver_descr(sv,info,iout,coarse)
use psb_base_mod
Implicit None
! Arguments
@ -636,7 +371,8 @@ contains
iout_ = 6
endif
write(iout_,*) ' TLU: test a new solver kind'
write(iout_,*) ' TLU: template for a new solver type'
write(iout_,*) ' testing with a clone of ILU '
write(iout_,*) ' Incomplete factorization solver: ',&
& fact_names(sv%fact_type)
select case(sv%fact_type)
@ -659,71 +395,36 @@ contains
return
end subroutine d_tlu_solver_descr
function d_tlu_solver_sizeof(sv) result(val)
use psb_base_mod
function d_tlu_solver_get_nzeros(sv) result(val)
implicit none
! Arguments
class(mld_d_tlu_solver_type), intent(in) :: sv
integer(psb_long_int_k_) :: val
integer :: i
val = 2*psb_sizeof_int + psb_sizeof_dp
if (allocated(sv%d)) val = val + psb_sizeof_dp * size(sv%d)
val = val + psb_sizeof(sv%l)
val = val + psb_sizeof(sv%u)
val = 0
val = val + sv%dv%get_nrows()
val = val + sv%l%get_nzeros()
val = val + sv%u%get_nzeros()
return
end function d_tlu_solver_sizeof
end function d_tlu_solver_get_nzeros
function d_tlu_solver_sizeof(sv) result(val)
subroutine d_tlu_solver_dmp(sv,ictxt,level,info,prefix,head,solver)
use psb_base_mod
implicit none
! Arguments
class(mld_d_tlu_solver_type), intent(in) :: sv
integer, intent(in) :: ictxt,level
integer, intent(out) :: info
character(len=*), intent(in), optional :: prefix, head
logical, optional, intent(in) :: solver
integer :: i, j, il1, iln, lname, lev
integer :: icontxt,iam, np
character(len=80) :: prefix_
character(len=120) :: fname ! len should be at least 20 more than
logical :: solver_
! len of prefix_
info = 0
if (present(prefix)) then
prefix_ = trim(prefix(1:min(len(prefix),len(prefix_))))
else
prefix_ = "dump_slv_d"
end if
call psb_info(ictxt,iam,np)
if (present(solver)) then
solver_ = solver
else
solver_ = .false.
end if
lname = len_trim(prefix_)
fname = trim(prefix_)
write(fname(lname+1:lname+5),'(a,i3.3)') '_p',iam
lname = lname + 5
if (solver_) then
write(fname(lname+1:),'(a,i3.3,a)')'_l',level,'_lower.mtx'
if (sv%l%is_asb()) &
& call sv%l%print(fname,head=head)
write(fname(lname+1:),'(a,i3.3,a)')'_l',level,'_diag.mtx'
if (allocated(sv%d)) &
& call psb_geprt(fname,sv%d,head=head)
write(fname(lname+1:),'(a,i3.3,a)')'_l',level,'_upper.mtx'
if (sv%u%is_asb()) &
& call sv%u%print(fname,head=head)
end if
integer(psb_long_int_k_) :: val
integer :: i
end subroutine d_tlu_solver_dmp
val = 2*psb_sizeof_int + psb_sizeof_dp
val = val + sv%dv%sizeof()
val = val + sv%l%sizeof()
val = val + sv%u%sizeof()
return
end function d_tlu_solver_sizeof
end module mld_d_tlu_solver

7
tests/newslv/ppde.f90
Unescape Escape View File

@ -189,7 +189,8 @@ program ppde
call mld_precset(prec,mld_sub_ovr_, prectype%novr, info)
call mld_precset(prec,mld_sub_restr_, prectype%restr, info)
call mld_precset(prec,mld_sub_prol_, prectype%prol, info)
call mld_precset(prec,mld_sub_solve_, prectype%solve, info)
!call mld_precset(prec,mld_sub_solve_, prectype%solve, info)
call mld_precset(prec,tlusv,info)
call mld_precset(prec,mld_sub_fillin_, prectype%fill1, info)
call mld_precset(prec,mld_sub_iluthrs_, prectype%thr1, info)
call mld_precset(prec,mld_aggr_kind_, prectype%aggrkind,info)
@ -211,11 +212,11 @@ program ppde
call mld_precset(prec,mld_sub_ovr_, prectype%novr, info)
call mld_precset(prec,mld_sub_restr_, prectype%restr, info)
call mld_precset(prec,mld_sub_prol_, prectype%prol, info)
call mld_precset(prec,mld_sub_solve_, prectype%solve, info)
!call mld_precset(prec,mld_sub_solve_, prectype%solve, info)
call mld_precset(prec,tlusv,info)
call mld_precset(prec,mld_sub_fillin_, prectype%fill1, info)
call mld_precset(prec,mld_sub_iluthrs_, prectype%thr1, info)
end if
call mld_inner_precset(prec,tlusv,info,ilev=nlv)
call psb_barrier(ictxt)
t1 = psb_wtime()

7
tests/newslv/runs/ppde.inp
Unescape Escape View File

@ -14,8 +14,8 @@ NONE ! Prolongation operator NONE SUM AVG
ILU ! Subdomain solver DSCALE ILU MILU ILUT UMF SLU
0 ! Level-set N for ILU(N)
1.d-4 ! Threshold T for ILU(T,P)
1 ! Smoother/Jacobi sweeps
AS ! Smoother type JACOBI BJAC AS ignored for non-ML
4 ! Smoother/Jacobi sweeps
BJAC ! Smoother type JACOBI BJAC AS; ignored for non-ML
3 ! Number of levels in a multilevel preconditioner
SMOOTHED ! Kind of aggregation: SMOOTHED, NONSMOOTHED, MINENERGY
DEC ! Type of aggregation DEC SYMDEC GLB
@ -27,4 +27,5 @@ ILU ! Coarse level: subsolver DSCALE ILU UMF SLU SLUDI
1 ! Coarse level: Level-set N for ILU(N)
1.d-4 ! Coarse level: Threshold T for ILU(T,P)
4 ! Coarse level: Number of Jacobi sweeps
0.10d0 ! Smoother Aggregation Threshold: >= 0.0
-0.10d0 ! Smoother Aggregation Threshold: >= 0.0 default if <0
100 ! Coarse size limit to determine levels. If <0, then use NL

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