mld2p4/test/fileread:
Salvatore Filippone
17 years ago
parent
0baffd3e6d
commit
d4d073820b
@ -0,0 +1,498 @@
|
|||||||
|
!!$
|
||||||
|
!!$
|
||||||
|
!!$ MLD2P4 version 1.0
|
||||||
|
!!$ MultiLevel Domain Decomposition Parallel Preconditioners Package
|
||||||
|
!!$ based on PSBLAS (Parallel Sparse BLAS version 2.2)
|
||||||
|
!!$
|
||||||
|
!!$ (C) Copyright 2008
|
||||||
|
!!$
|
||||||
|
!!$ Salvatore Filippone University of Rome Tor Vergata
|
||||||
|
!!$ Alfredo Buttari University of Rome Tor Vergata
|
||||||
|
!!$ Pasqua D'Ambra ICAR-CNR, Naples
|
||||||
|
!!$ Daniela di Serafino Second University of Naples
|
||||||
|
!!$
|
||||||
|
!!$ 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 MLD2P4 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 MLD2P4 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.
|
||||||
|
!!$
|
||||||
|
!!$
|
||||||
|
|
||||||
|
module data_input
|
||||||
|
|
||||||
|
interface read_data
|
||||||
|
module procedure read_char, read_int, read_double
|
||||||
|
end interface read_data
|
||||||
|
|
||||||
|
contains
|
||||||
|
|
||||||
|
subroutine read_char(val,file)
|
||||||
|
character(len=*), intent(out) :: val
|
||||||
|
integer, intent(in) :: file
|
||||||
|
character(len=1024) :: charbuf
|
||||||
|
integer :: idx
|
||||||
|
read(file,'(a)')charbuf
|
||||||
|
charbuf = adjustl(charbuf)
|
||||||
|
idx=index(charbuf,"!")
|
||||||
|
read(charbuf(1:idx-1),'(a)') val
|
||||||
|
!!$ write(0,*) 'read_char got value: "',val,'"'
|
||||||
|
end subroutine read_char
|
||||||
|
subroutine read_int(val,file)
|
||||||
|
integer, intent(out) :: val
|
||||||
|
integer, intent(in) :: file
|
||||||
|
character(len=1024) :: charbuf
|
||||||
|
integer :: idx
|
||||||
|
read(file,'(a)')charbuf
|
||||||
|
charbuf = adjustl(charbuf)
|
||||||
|
idx=index(charbuf,"!")
|
||||||
|
read(charbuf(1:idx-1),*) val
|
||||||
|
!!$ write(0,*) 'read_int got value: ',val
|
||||||
|
end subroutine read_int
|
||||||
|
subroutine read_double(val,file)
|
||||||
|
use psb_base_mod
|
||||||
|
real(psb_dpk_), intent(out) :: val
|
||||||
|
integer, intent(in) :: file
|
||||||
|
character(len=1024) :: charbuf
|
||||||
|
integer :: idx
|
||||||
|
read(file,'(a)')charbuf
|
||||||
|
charbuf = adjustl(charbuf)
|
||||||
|
idx=index(charbuf,"!")
|
||||||
|
read(charbuf(1:idx-1),*) val
|
||||||
|
!!$ write(0,*) 'read_double got value: ',val
|
||||||
|
end subroutine read_double
|
||||||
|
end module data_input
|
||||||
|
|
||||||
|
|
||||||
|
program df_sample
|
||||||
|
use psb_base_mod
|
||||||
|
use mld_prec_mod
|
||||||
|
use psb_krylov_mod
|
||||||
|
use psb_util_mod
|
||||||
|
use data_input
|
||||||
|
implicit none
|
||||||
|
|
||||||
|
|
||||||
|
! input parameters
|
||||||
|
character(len=40) :: kmethd, mtrx_file, rhs_file
|
||||||
|
type precdata
|
||||||
|
character(len=20) :: descr ! verbose description of the prec
|
||||||
|
character(len=10) :: prec ! overall prectype
|
||||||
|
integer :: novr ! number of overlap layers
|
||||||
|
character(len=16) :: restr ! restriction over application of as
|
||||||
|
character(len=16) :: prol ! prolongation over application of as
|
||||||
|
character(len=16) :: solve ! Factorization type: ILU, SuperLU, UMFPACK.
|
||||||
|
integer :: fill1 ! Fill-in for factorization 1
|
||||||
|
real(psb_dpk_) :: thr1 ! Threshold for fact. 1 ILU(T)
|
||||||
|
integer :: nlev ! Number of levels in multilevel prec.
|
||||||
|
character(len=16) :: aggrkind ! smoothed/raw aggregatin
|
||||||
|
character(len=16) :: aggr_alg ! local or global aggregation
|
||||||
|
character(len=16) :: mltype ! additive or multiplicative 2nd level prec
|
||||||
|
character(len=16) :: smthpos ! side: pre, post, both smoothing
|
||||||
|
character(len=16) :: cmat ! coarse mat
|
||||||
|
character(len=16) :: csolve ! Factorization type: ILU, SuperLU, UMFPACK.
|
||||||
|
integer :: cfill ! Fill-in for factorization 1
|
||||||
|
real(psb_dpk_) :: cthres ! Threshold for fact. 1 ILU(T)
|
||||||
|
integer :: cjswp ! Jacobi sweeps
|
||||||
|
real(psb_dpk_) :: omega ! smoother omega
|
||||||
|
end type precdata
|
||||||
|
type(precdata) :: prec_choice
|
||||||
|
|
||||||
|
! sparse matrices
|
||||||
|
type(psb_dspmat_type) :: a, aux_a
|
||||||
|
|
||||||
|
! preconditioner data
|
||||||
|
type(mld_dprec_type) :: prec
|
||||||
|
|
||||||
|
! dense matrices
|
||||||
|
real(kind(1.d0)), allocatable, target :: aux_b(:,:), d(:)
|
||||||
|
real(kind(1.d0)), allocatable , save :: b_col(:), x_col(:), r_col(:), &
|
||||||
|
& x_col_glob(:), r_col_glob(:)
|
||||||
|
real(kind(1.d0)), pointer :: b_col_glob(:)
|
||||||
|
|
||||||
|
! communications data structure
|
||||||
|
type(psb_desc_type):: desc_a
|
||||||
|
|
||||||
|
integer :: ictxt, iam, np
|
||||||
|
|
||||||
|
! solver paramters
|
||||||
|
integer :: iter, itmax, ierr, itrace, ircode, ipart,&
|
||||||
|
& methd, istopc, irst,amatsize,precsize,descsize, nlv
|
||||||
|
real(kind(1.d0)) :: err, eps
|
||||||
|
|
||||||
|
character(len=5) :: afmt
|
||||||
|
character(len=20) :: name
|
||||||
|
integer :: iparm(20)
|
||||||
|
|
||||||
|
! other variables
|
||||||
|
integer :: i,info,j,m_problem
|
||||||
|
integer :: internal, m,ii,nnzero
|
||||||
|
real(kind(1.d0)) :: t1, t2, tprec, r_amax, b_amax,&
|
||||||
|
&scale,resmx,resmxp
|
||||||
|
integer :: nrhs, nrow, n_row, dim, nv, ne
|
||||||
|
integer, allocatable :: ivg(:), ipv(:)
|
||||||
|
|
||||||
|
|
||||||
|
call psb_init(ictxt)
|
||||||
|
call psb_info(ictxt,iam,np)
|
||||||
|
|
||||||
|
if (iam < 0) then
|
||||||
|
! This should not happen, but just in case
|
||||||
|
call psb_exit(ictxt)
|
||||||
|
stop
|
||||||
|
endif
|
||||||
|
|
||||||
|
|
||||||
|
name='df_sample'
|
||||||
|
if(psb_get_errstatus() /= 0) goto 9999
|
||||||
|
info=0
|
||||||
|
call psb_set_errverbosity(2)
|
||||||
|
!
|
||||||
|
! get parameters
|
||||||
|
!
|
||||||
|
call get_parms(ictxt,mtrx_file,rhs_file,kmethd,&
|
||||||
|
& prec_choice,ipart,afmt,istopc,itmax,itrace,irst,eps)
|
||||||
|
|
||||||
|
call psb_barrier(ictxt)
|
||||||
|
t1 = psb_wtime()
|
||||||
|
! read the input matrix to be processed and (possibly) the rhs
|
||||||
|
nrhs = 1
|
||||||
|
|
||||||
|
if (iam==psb_root_) then
|
||||||
|
call read_mat(mtrx_file, aux_a, ictxt)
|
||||||
|
|
||||||
|
m_problem = aux_a%m
|
||||||
|
call psb_bcast(ictxt,m_problem)
|
||||||
|
|
||||||
|
if(rhs_file /= 'NONE') then
|
||||||
|
! reading an rhs
|
||||||
|
call read_rhs(rhs_file,aux_b,ictxt)
|
||||||
|
end if
|
||||||
|
|
||||||
|
if (psb_size(aux_b,dim=1)==m_problem) then
|
||||||
|
! if any rhs were present, broadcast the first one
|
||||||
|
write(0,'("Ok, got an rhs ")')
|
||||||
|
b_col_glob =>aux_b(:,1)
|
||||||
|
else
|
||||||
|
write(*,'("Generating an rhs...")')
|
||||||
|
write(*,'(" ")')
|
||||||
|
call psb_realloc(m_problem,1,aux_b,ircode)
|
||||||
|
if (ircode /= 0) then
|
||||||
|
call psb_errpush(4000,name)
|
||||||
|
goto 9999
|
||||||
|
endif
|
||||||
|
|
||||||
|
b_col_glob => aux_b(:,1)
|
||||||
|
do i=1, m_problem
|
||||||
|
b_col_glob(i) = 1.d0
|
||||||
|
enddo
|
||||||
|
endif
|
||||||
|
call psb_bcast(ictxt,b_col_glob(1:m_problem))
|
||||||
|
else
|
||||||
|
call psb_bcast(ictxt,m_problem)
|
||||||
|
call psb_realloc(m_problem,1,aux_b,ircode)
|
||||||
|
if (ircode /= 0) then
|
||||||
|
call psb_errpush(4000,name)
|
||||||
|
goto 9999
|
||||||
|
endif
|
||||||
|
b_col_glob =>aux_b(:,1)
|
||||||
|
call psb_bcast(ictxt,b_col_glob(1:m_problem))
|
||||||
|
end if
|
||||||
|
|
||||||
|
! switch over different partition types
|
||||||
|
if (ipart == 0) then
|
||||||
|
call psb_barrier(ictxt)
|
||||||
|
if (iam==psb_root_) write(*,'("Partition type: block")')
|
||||||
|
allocate(ivg(m_problem),ipv(np))
|
||||||
|
do i=1,m_problem
|
||||||
|
call part_block(i,m_problem,np,ipv,nv)
|
||||||
|
ivg(i) = ipv(1)
|
||||||
|
enddo
|
||||||
|
call psb_matdist(aux_a, a, ivg, ictxt, &
|
||||||
|
& desc_a,b_col_glob,b_col,info,fmt=afmt)
|
||||||
|
else if (ipart == 2) then
|
||||||
|
if (iam==psb_root_) then
|
||||||
|
write(*,'("Partition type: graph")')
|
||||||
|
write(*,'(" ")')
|
||||||
|
! write(0,'("Build type: graph")')
|
||||||
|
call build_mtpart(aux_a%m,aux_a%fida,aux_a%ia1,aux_a%ia2,np)
|
||||||
|
endif
|
||||||
|
call psb_barrier(ictxt)
|
||||||
|
call distr_mtpart(psb_root_,ictxt)
|
||||||
|
call getv_mtpart(ivg)
|
||||||
|
call psb_matdist(aux_a, a, ivg, ictxt, &
|
||||||
|
& desc_a,b_col_glob,b_col,info,fmt=afmt)
|
||||||
|
else
|
||||||
|
if (iam==psb_root_) write(*,'("Partition type: block")')
|
||||||
|
call psb_matdist(aux_a, a, part_block, ictxt, &
|
||||||
|
& desc_a,b_col_glob,b_col,info,fmt=afmt)
|
||||||
|
end if
|
||||||
|
|
||||||
|
call psb_geall(x_col,desc_a,info)
|
||||||
|
x_col(:) =0.0
|
||||||
|
call psb_geasb(x_col,desc_a,info)
|
||||||
|
call psb_geall(r_col,desc_a,info)
|
||||||
|
r_col(:) =0.0
|
||||||
|
call psb_geasb(r_col,desc_a,info)
|
||||||
|
t2 = psb_wtime() - t1
|
||||||
|
|
||||||
|
|
||||||
|
call psb_amx(ictxt, t2)
|
||||||
|
|
||||||
|
if (iam==psb_root_) then
|
||||||
|
write(*,'(" ")')
|
||||||
|
write(*,'("Time to read and partition matrix : ",es10.4)')t2
|
||||||
|
write(*,'(" ")')
|
||||||
|
write(*,*) 'Preconditioner: ',prec_choice%descr
|
||||||
|
end if
|
||||||
|
|
||||||
|
!
|
||||||
|
|
||||||
|
if (toupper(prec_choice%prec) =='ML') then
|
||||||
|
nlv = prec_choice%nlev
|
||||||
|
end if
|
||||||
|
call mld_precinit(prec,prec_choice%prec,info,nlev=nlv)
|
||||||
|
call mld_precset(prec,mld_n_ovr_,prec_choice%novr,info)
|
||||||
|
call mld_precset(prec,mld_sub_restr_,prec_choice%restr,info)
|
||||||
|
call mld_precset(prec,mld_sub_prol_,prec_choice%prol,info)
|
||||||
|
call mld_precset(prec,mld_sub_solve_,prec_choice%solve,info)
|
||||||
|
call mld_precset(prec,mld_sub_fill_in_,prec_choice%fill1,info)
|
||||||
|
call mld_precset(prec,mld_fact_thrs_,prec_choice%thr1,info)
|
||||||
|
if (toupper(prec_choice%prec) =='ML') then
|
||||||
|
call mld_precset(prec,mld_aggr_kind_,prec_choice%aggrkind,info)
|
||||||
|
call mld_precset(prec,mld_aggr_alg_,prec_choice%aggr_alg,info)
|
||||||
|
call mld_precset(prec,mld_ml_type_,prec_choice%mltype,info)
|
||||||
|
call mld_precset(prec,mld_ml_type_,prec_choice%mltype,info)
|
||||||
|
call mld_precset(prec,mld_smooth_pos_,prec_choice%smthpos,info)
|
||||||
|
call mld_precset(prec,mld_coarse_mat_,prec_choice%cmat,info)
|
||||||
|
call mld_precset(prec,mld_coarse_solve_,prec_choice%csolve,info)
|
||||||
|
call mld_precset(prec,mld_sub_fill_in_,prec_choice%cfill,info,ilev=nlv)
|
||||||
|
call mld_precset(prec,mld_fact_thrs_,prec_choice%cthres,info,ilev=nlv)
|
||||||
|
call mld_precset(prec,mld_smooth_sweeps_,prec_choice%cjswp,info,ilev=nlv)
|
||||||
|
call mld_precset(prec,mld_smooth_sweeps_,prec_choice%cjswp,info,ilev=nlv)
|
||||||
|
if (prec_choice%omega>=0.0) then
|
||||||
|
call mld_precset(prec,mld_aggr_damp_,prec_choice%omega,info,ilev=nlv)
|
||||||
|
end if
|
||||||
|
end if
|
||||||
|
|
||||||
|
! building the preconditioner
|
||||||
|
t1 = psb_wtime()
|
||||||
|
call mld_precbld(a,desc_a,prec,info)
|
||||||
|
tprec = psb_wtime()-t1
|
||||||
|
if (info /= 0) then
|
||||||
|
call psb_errpush(4010,name,a_err='psb_precbld')
|
||||||
|
goto 9999
|
||||||
|
end if
|
||||||
|
|
||||||
|
|
||||||
|
call psb_amx(ictxt, tprec)
|
||||||
|
|
||||||
|
if(iam==psb_root_) then
|
||||||
|
write(*,'("Preconditioner time: ",es10.4)')tprec
|
||||||
|
write(*,'(" ")')
|
||||||
|
end if
|
||||||
|
|
||||||
|
iparm = 0
|
||||||
|
call psb_barrier(ictxt)
|
||||||
|
t1 = psb_wtime()
|
||||||
|
call psb_krylov(kmethd,a,prec,b_col,x_col,eps,desc_a,info,&
|
||||||
|
& itmax=itmax,iter=iter,err=err,itrace=itrace,istop=istopc,irst=irst)
|
||||||
|
call psb_barrier(ictxt)
|
||||||
|
t2 = psb_wtime() - t1
|
||||||
|
|
||||||
|
call psb_amx(ictxt,t2)
|
||||||
|
call psb_geaxpby(done,b_col,dzero,r_col,desc_a,info)
|
||||||
|
call psb_spmm(-done,a,x_col,done,r_col,desc_a,info)
|
||||||
|
call psb_genrm2s(resmx,r_col,desc_a,info)
|
||||||
|
call psb_geamaxs(resmxp,r_col,desc_a,info)
|
||||||
|
|
||||||
|
amatsize = psb_sizeof(a)
|
||||||
|
descsize = psb_sizeof(desc_a)
|
||||||
|
precsize = mld_sizeof(prec)
|
||||||
|
call psb_sum(ictxt,amatsize)
|
||||||
|
call psb_sum(ictxt,descsize)
|
||||||
|
call psb_sum(ictxt,precsize)
|
||||||
|
if (iam==psb_root_) then
|
||||||
|
call mld_prec_descr(6,prec)
|
||||||
|
write(*,'("Matrix: ",a)')mtrx_file
|
||||||
|
write(*,'("Computed solution on ",i8," processors")')np
|
||||||
|
write(*,'("Iterations to convergence: ",i6)')iter
|
||||||
|
write(*,'("Error estimate on exit: ",f7.2)')err
|
||||||
|
write(*,'("Time to buil prec. : ",es10.4)')tprec
|
||||||
|
write(*,'("Time to solve matrix : ",es10.4)')t2
|
||||||
|
write(*,'("Time per iteration : ",es10.4)')t2/(iter)
|
||||||
|
write(*,'("Total time : ",es10.4)')t2+tprec
|
||||||
|
write(*,'("Residual norm 2 = ",es10.4)')resmx
|
||||||
|
write(*,'("Residual norm inf = ",es10.4)')resmxp
|
||||||
|
write(*,'("Total memory occupation for A: ",i10)')amatsize
|
||||||
|
write(*,'("Total memory occupation for DESC_A: ",i10)')descsize
|
||||||
|
write(*,'("Total memory occupation for PREC: ",i10)')precsize
|
||||||
|
end if
|
||||||
|
|
||||||
|
allocate(x_col_glob(m_problem),r_col_glob(m_problem),stat=ierr)
|
||||||
|
if (ierr /= 0) then
|
||||||
|
write(0,*) 'allocation error: no data collection'
|
||||||
|
else
|
||||||
|
call psb_gather(x_col_glob,x_col,desc_a,info,root=psb_root_)
|
||||||
|
call psb_gather(r_col_glob,r_col,desc_a,info,root=psb_root_)
|
||||||
|
if (iam==psb_root_) then
|
||||||
|
write(0,'(" ")')
|
||||||
|
write(0,'("Saving x on file")')
|
||||||
|
write(20,*) 'matrix: ',mtrx_file
|
||||||
|
write(20,*) 'computed solution on ',np,' processors.'
|
||||||
|
write(20,*) 'iterations to convergence: ',iter
|
||||||
|
write(20,*) 'error estimate (infinity norm) on exit:', &
|
||||||
|
& ' ||r||/(||a||||x||+||b||) = ',err
|
||||||
|
write(20,*) 'max residual = ',resmx, resmxp
|
||||||
|
write(20,'(a8,4(2x,a20))') 'I','X(I)','R(I)','B(I)'
|
||||||
|
do i=1,m_problem
|
||||||
|
write(20,998) i,x_col_glob(i),r_col_glob(i),b_col_glob(i)
|
||||||
|
enddo
|
||||||
|
end if
|
||||||
|
end if
|
||||||
|
998 format(i8,4(2x,g20.14))
|
||||||
|
993 format(i6,4(1x,e12.6))
|
||||||
|
|
||||||
|
|
||||||
|
call psb_gefree(b_col, desc_a,info)
|
||||||
|
call psb_gefree(x_col, desc_a,info)
|
||||||
|
call psb_spfree(a, desc_a,info)
|
||||||
|
call mld_precfree(prec,info)
|
||||||
|
call psb_cdfree(desc_a,info)
|
||||||
|
|
||||||
|
9999 continue
|
||||||
|
if(info /= 0) then
|
||||||
|
call psb_error(ictxt)
|
||||||
|
end if
|
||||||
|
call psb_exit(ictxt)
|
||||||
|
stop
|
||||||
|
|
||||||
|
contains
|
||||||
|
!
|
||||||
|
! get iteration parameters from standard input
|
||||||
|
!
|
||||||
|
subroutine get_parms(icontxt,mtrx,rhs,kmethd,&
|
||||||
|
& prec, ipart,afmt,istopc,itmax,itrace,irst,eps)
|
||||||
|
|
||||||
|
use psb_base_mod
|
||||||
|
implicit none
|
||||||
|
|
||||||
|
integer :: icontxt
|
||||||
|
character(len=*) :: kmethd, mtrx, rhs, afmt
|
||||||
|
type(precdata) :: prec
|
||||||
|
integer :: iret, istopc,itmax,itrace, ipart, irst
|
||||||
|
real(psb_dpk_) :: eps, omega,thr1,thr2
|
||||||
|
integer :: iam, nm, np, i
|
||||||
|
|
||||||
|
call psb_info(icontxt,iam,np)
|
||||||
|
|
||||||
|
if (iam==psb_root_) then
|
||||||
|
! read input parameters
|
||||||
|
call read_data(mtrx,5)
|
||||||
|
call read_data(rhs,5)
|
||||||
|
call read_data(kmethd,5)
|
||||||
|
call read_data(afmt,5)
|
||||||
|
call read_data(ipart,5)
|
||||||
|
call read_data(istopc,5)
|
||||||
|
call read_data(itmax,5)
|
||||||
|
call read_data(itrace,5)
|
||||||
|
call read_data(irst,5)
|
||||||
|
call read_data(eps,5)
|
||||||
|
call read_data(prec%descr,5) ! verbose description of the prec
|
||||||
|
call read_data(prec%prec,5) ! overall prectype
|
||||||
|
call read_data(prec%novr,5) ! number of overlap layers
|
||||||
|
call read_data(prec%restr,5) ! restriction over application of as
|
||||||
|
call read_data(prec%prol,5) ! prolongation over application of as
|
||||||
|
call read_data(prec%solve,5) ! Factorization type: ILU, SuperLU, UMFPACK.
|
||||||
|
call read_data(prec%fill1,5) ! Fill-in for factorization 1
|
||||||
|
call read_data(prec%thr1,5) ! Threshold for fact. 1 ILU(T)
|
||||||
|
if (toupper(prec%prec) == 'ML') then
|
||||||
|
call read_data(prec%nlev,5) ! Number of levels in multilevel prec.
|
||||||
|
call read_data(prec%aggrkind,5) ! smoothed/raw aggregatin
|
||||||
|
call read_data(prec%aggr_alg,5) ! local or global aggregation
|
||||||
|
call read_data(prec%mltype,5) ! additive or multiplicative 2nd level prec
|
||||||
|
call read_data(prec%smthpos,5) ! side: pre, post, both smoothing
|
||||||
|
call read_data(prec%cmat,5) ! coarse mat
|
||||||
|
call read_data(prec%csolve,5) ! Factorization type: ILU, SuperLU, UMFPACK.
|
||||||
|
call read_data(prec%cfill,5) ! Fill-in for factorization 1
|
||||||
|
call read_data(prec%cthres,5) ! Threshold for fact. 1 ILU(T)
|
||||||
|
call read_data(prec%cjswp,5) ! Jacobi sweeps
|
||||||
|
call read_data(prec%omega,5) ! smoother omega
|
||||||
|
end if
|
||||||
|
end if
|
||||||
|
|
||||||
|
call psb_bcast(icontxt,mtrx)
|
||||||
|
call psb_bcast(icontxt,rhs)
|
||||||
|
call psb_bcast(icontxt,kmethd)
|
||||||
|
call psb_bcast(icontxt,afmt)
|
||||||
|
call psb_bcast(icontxt,ipart)
|
||||||
|
call psb_bcast(icontxt,istopc)
|
||||||
|
call psb_bcast(icontxt,itmax)
|
||||||
|
call psb_bcast(icontxt,itrace)
|
||||||
|
call psb_bcast(icontxt,irst)
|
||||||
|
call psb_bcast(icontxt,eps)
|
||||||
|
|
||||||
|
call psb_bcast(icontxt,prec%descr) ! verbose description of the prec
|
||||||
|
call psb_bcast(icontxt,prec%prec) ! overall prectype
|
||||||
|
call psb_bcast(icontxt,prec%novr) ! number of overlap layers
|
||||||
|
call psb_bcast(icontxt,prec%restr) ! restriction over application of as
|
||||||
|
call psb_bcast(icontxt,prec%prol) ! prolongation over application of as
|
||||||
|
call psb_bcast(icontxt,prec%solve) ! Factorization type: ILU, SuperLU, UMFPACK.
|
||||||
|
call psb_bcast(icontxt,prec%fill1) ! Fill-in for factorization 1
|
||||||
|
call psb_bcast(icontxt,prec%thr1) ! Threshold for fact. 1 ILU(T)
|
||||||
|
if (toupper(prec%prec) == 'ML') then
|
||||||
|
call psb_bcast(icontxt,prec%nlev) ! Number of levels in multilevel prec.
|
||||||
|
call psb_bcast(icontxt,prec%aggrkind) ! smoothed/raw aggregatin
|
||||||
|
call psb_bcast(icontxt,prec%aggr_alg) ! local or global aggregation
|
||||||
|
call psb_bcast(icontxt,prec%mltype) ! additive or multiplicative 2nd level prec
|
||||||
|
call psb_bcast(icontxt,prec%smthpos) ! side: pre, post, both smoothing
|
||||||
|
call psb_bcast(icontxt,prec%cmat) ! coarse mat
|
||||||
|
call psb_bcast(icontxt,prec%csolve) ! Factorization type: ILU, SuperLU, UMFPACK.
|
||||||
|
call psb_bcast(icontxt,prec%cfill) ! Fill-in for factorization 1
|
||||||
|
call psb_bcast(icontxt,prec%cthres) ! Threshold for fact. 1 ILU(T)
|
||||||
|
call psb_bcast(icontxt,prec%cjswp) ! Jacobi sweeps
|
||||||
|
call psb_bcast(icontxt,prec%omega) ! smoother omega
|
||||||
|
end if
|
||||||
|
|
||||||
|
end subroutine get_parms
|
||||||
|
subroutine pr_usage(iout)
|
||||||
|
integer iout
|
||||||
|
write(iout, *) ' number of parameters is incorrect!'
|
||||||
|
write(iout, *) ' use: hb_sample mtrx_file methd prec [ptype &
|
||||||
|
&itmax istopc itrace]'
|
||||||
|
write(iout, *) ' where:'
|
||||||
|
write(iout, *) ' mtrx_file is stored in hb format'
|
||||||
|
write(iout, *) ' methd may be: cgstab '
|
||||||
|
write(iout, *) ' itmax max iterations [500] '
|
||||||
|
write(iout, *) ' istopc stopping criterion [1] '
|
||||||
|
write(iout, *) ' itrace 0 (no tracing, default) or '
|
||||||
|
write(iout, *) ' >= 0 do tracing every itrace'
|
||||||
|
write(iout, *) ' iterations '
|
||||||
|
write(iout, *) ' prec may be: ilu diagsc none'
|
||||||
|
write(iout, *) ' ptype partition strategy default 0'
|
||||||
|
write(iout, *) ' 0: block partition '
|
||||||
|
end subroutine pr_usage
|
||||||
|
end program df_sample
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
@ -0,0 +1,29 @@
|
|||||||
|
thm1000x600.mtx ! young1r.mtx This (and others) from: http://math.nist.gov/MatrixMarket/ or
|
||||||
|
NONE ! rhs.mtx http://www.cise.ufl.edu/research/sparse/matrices/index.html
|
||||||
|
BICGSTAB ! Iterative method: BiCGSTAB BiCG CGS RGMRES BiCGSTABL CG
|
||||||
|
CSR ! Storage format CSR COO JAD
|
||||||
|
2 ! IPART: Partition method 0: BLK 2: graph (with Metis)
|
||||||
|
2 ! ISTOPC
|
||||||
|
01000 ! ITMAX
|
||||||
|
-1 ! ITRACE
|
||||||
|
30 ! IRST (restart for RGMRES and BiCGSTABL)
|
||||||
|
1.d-6 ! EPS
|
||||||
|
3L-M-RAS-I-D4 ! Longer descriptive name for preconditioner (up to 20 chars)
|
||||||
|
ML ! Preconditioner NONE DIAG BJAC AS ML
|
||||||
|
0 ! Number of overlap layers for AS preconditioner at finest level
|
||||||
|
HALO ! Restriction operator NONE HALO
|
||||||
|
NONE ! Prolongation operator NONE SUM AVG
|
||||||
|
ILU ! Subdomain solver ILU MILU ILUT UMF SLU
|
||||||
|
1 ! Level-set N for ILU(N)
|
||||||
|
1.d-4 ! Threshold T for ILU(T,P)
|
||||||
|
3 ! Number of levels in a multilevel preconditioner
|
||||||
|
SMOOTH ! Kind of aggregation: RAW, SMOOTH
|
||||||
|
DEC ! Type of aggregation DEC SYMDEC GLB
|
||||||
|
MULT ! Type of multilevel correction: ADD MULT
|
||||||
|
POST ! Side of multiplicative correction PRE POST BOTH (ignored for ADD)
|
||||||
|
DIST ! Coarse level: matrix distribution DIST REPL
|
||||||
|
UMF ! Coarse level: solver ILU ILUT UMF SLU SLUDIST
|
||||||
|
0 ! 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
|
||||||
|
-1.0d0 ! Smoother Omega: if < 0 means library choice.
|
||||||
Loading…
Reference in New Issue