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412 lines
13 KiB
Fortran
412 lines
13 KiB
Fortran
program df_bench
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use getp
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use precd
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use psb_base_mod
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use psb_util_mod
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use mld_prec_mod
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use psb_krylov_mod
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implicit none
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! input parameters
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character(len=20) :: cmethd
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character(len=80) :: outf1, outf2, outf3
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character(len=20), allocatable :: mtrx(:),rhs(:)
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type(precdata), allocatable :: precs(:)
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! sparse matrices
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type(psb_dspmat_type) :: a, aux_a
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! preconditioner data
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type(mld_dprec_type) :: pre
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integer :: igsmth, matop, novr
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! dense matrices
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real(kind(1.d0)), allocatable, target :: aux_b(:,:), d(:)
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real(kind(1.d0)), allocatable , save :: b_col(:), x_col(:), r_col(:), &
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& x_col_glob(:), r_col_glob(:)
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real(kind(1.d0)), pointer :: b_col_glob(:)
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! communications data structure
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type(psb_desc_type):: desc_a
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! blacs variables
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integer :: ictxt, iam, np, root
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logical :: amroot, out1, out2
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! solver paramters
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integer :: iter, itmax, ierr, itrace, ircode, ipart,nlev,&
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& methd, istopc, iprec, ml, irnum, irst, ntry, nmat, ilev,ipsize,asize,cdsize
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real(kind(1.d0)) :: err, eps
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character(len=5) :: afmt
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character(len=20) :: name
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integer :: iparm(20)
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! other variables
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integer :: i,info,j,m_problem, nm, nt
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integer :: internal, m,ii,nnzero, nprecs, pp
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real(kind(1.d0)) :: t1, t2, tprec, r_amax, b_amax,&
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&scale,resmx,resmxp, mttot, mtslv, mtprec
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integer :: nrhs, nrow, n_row, dim, nv, ne
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integer, allocatable :: ipv(:), neigh(:), ivg(:)
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call psb_init(ictxt)
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call psb_info(ictxt,iam,np)
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if (iam < 0) then
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! This should not happen, but just in case
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call psb_exit(ictxt)
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stop
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endif
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call enablecore()
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root = 0
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amroot = (iam==root)
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name='df_sample'
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if(psb_get_errstatus() /= 0) goto 9999
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info=0
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call psb_set_errverbosity(2)
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call psb_set_erraction(psb_act_abort_)
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!!$ call psb_cd_set_large_threshold(512)
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!!$ call psb_cd_set_large_threshold(2)
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!!$ write(0,*) iam,'Main: large threshold ',psb_cd_get_large_threshold()
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!
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! get parameters
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!
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call get_parms(ictxt,irst,irnum,ntry,nmat,mtrx,rhs,cmethd,nprecs,precs,&
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& ipart,afmt,istopc,itmax,itrace,eps,outf1,outf2)
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if(amroot) then
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if(outf1 /= 'NONE') then
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open(8,file=outf1,action='write')
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out1=.true.
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else
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out1=.false.
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end if
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if(outf2 /= 'NONE') then
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open(10,file=outf2,action='write')
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out2=.true.
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else
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out2=.false.
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end if
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end if
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do nm=1, nmat
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if(amroot) write(*,'(25("=")," ",a20," ",25("="))')mtrx(nm)
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call psb_barrier(ictxt)
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t1 = psb_wtime()
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! read the input matrix to be processed and (possibly) the rhs
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nrhs = 1
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if (amroot) then
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call read_mat(mtrx(nm), aux_a, ictxt)
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m_problem = aux_a%m
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call psb_bcast(ictxt,m_problem,root)
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if(rhs(nm) /= 'none') then
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! reading an rhs
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call read_rhs(rhs(nm),aux_b,ictxt)
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end if
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if (allocated(aux_b).and.size(aux_b,1)==m_problem) then
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! if any rhs were present, broadcast the first one
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b_col_glob =>aux_b(:,1)
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else
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allocate(aux_b(m_problem,1), stat=ircode)
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if (ircode /= 0) then
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call psb_errpush(4000,name)
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goto 9999
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endif
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b_col_glob => aux_b(:,1)
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do i=1, m_problem
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b_col_glob(i) = 1.d0
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enddo
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endif
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call psb_bcast(ictxt,b_col_glob(1:m_problem),root)
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else
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call psb_bcast(ictxt,m_problem,root)
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allocate(aux_b(m_problem,1), stat=ircode)
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if (ircode /= 0) then
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call psb_errpush(4000,name)
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goto 9999
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endif
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b_col_glob =>aux_b(:,1)
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call psb_bcast(ictxt,b_col_glob(1:m_problem),root)
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end if
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! switch over different partition types
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if (ipart == 0) then
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call psb_barrier(ictxt)
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! if (amroot) write(*,'("Partition type: block")')
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allocate(ivg(m_problem),ipv(np))
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if (.true.) then
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do i=1,m_problem
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call part_block(i,m_problem,np,ipv,nv)
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ivg(i) = ipv(1)
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enddo
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call psb_matdist(aux_a, a, ivg, ictxt, &
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& desc_a,b_col_glob,b_col,info,fmt=afmt)
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else
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call psb_matdist(aux_a, a, part_block, ictxt, &
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& desc_a,b_col_glob,b_col,info,fmt=afmt)
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end if
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else if (ipart == 2) then
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if (amroot) then
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call build_mtpart(aux_a%m,aux_a%fida,aux_a%ia1,aux_a%ia2,np)
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endif
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call psb_barrier(ictxt)
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call distr_mtpart(0,ictxt)
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call getv_mtpart(ivg)
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call psb_matdist(aux_a, a, ivg, ictxt, &
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& desc_a,b_col_glob,b_col,info,fmt=afmt)
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call free_part(info)
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else
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call psb_matdist(aux_a, a, part_block, ictxt, &
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& desc_a,b_col_glob,b_col,info,fmt=afmt)
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end if
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!!$ open(20+iam)
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!!$ call psb_cdprt(20+iam,desc_a,short=.false.)
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!!$ close(20+iam)
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!!$ write(0,*) iam,'After CDPRT '
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!!$ call flush(0)
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!!$ call flush(6)
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!!$ call psb_barrier(ictxt)
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call psb_geall(x_col,desc_a,info)
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x_col(:) =0.0
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call psb_geasb(x_col,desc_a,info)
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call psb_geall(r_col,desc_a,info)
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r_col(:) =0.0
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call psb_geasb(r_col,desc_a,info)
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t2 = psb_wtime() - t1
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!!$ call psb_csprt(10+iam,a,head='% (A)')
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call psb_sp_free(aux_a,info)
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call psb_amx(ictxt, t2)
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!!$ call psb_csprt(20+iam,a,head='% (A)')
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!
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! prepare the preconditioning matrix. note the availability
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! of optional parameters
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!
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do pp=1, nprecs
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mttot=1.d300
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do nt=1,ntry
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if (precs(pp)%lv2(1:2) == 'ml') then
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if (precs(pp)%nlev < 2) then
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write(0,*) 'Inconsistent number of levels ',precs(pp)%nlev,&
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& ' forcing 2'
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precs(pp)%nlev = 2
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end if
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nlev = precs(pp)%nlev
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call mld_precinit(pre,precs(pp)%lv2,info,nlev=nlev)
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! Defaults are OK for all intermediate levels. Only fix last level.
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if (precs(pp)%omega>=0.0) then
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call mld_precset(pre,aggr_damp_,precs(pp)%omega,info,ilev=nlev)
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end if
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call mld_precset(pre,ml_type_, precs(pp)%mltype, info,ilev=nlev)
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call mld_precset(pre,aggr_alg_, precs(pp)%aggr, info,ilev=nlev)
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call mld_precset(pre,coarse_mat_, precs(pp)%cmat, info,ilev=nlev)
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call mld_precset(pre,smooth_pos_, precs(pp)%smthpos, info,ilev=nlev)
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call mld_precset(pre,sub_solve_, precs(pp)%ftype2, info,ilev=nlev)
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call mld_precset(pre,smooth_sweeps_, precs(pp)%jswp, info,ilev=nlev)
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call mld_precset(pre,aggr_kind_, precs(pp)%smthkind,info,ilev=nlev)
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else
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call mld_precinit(pre,precs(pp)%lv1,info)
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end if
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call mld_precset(pre,n_ovr_, precs(pp)%novr,info ,ilev=1)
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call mld_precset(pre,sub_restr_, precs(pp)%restr,info ,ilev=1)
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call mld_precset(pre,sub_prol_, precs(pp)%prol,info ,ilev=1)
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call mld_precset(pre,sub_solve_, precs(pp)%ftype1,info ,ilev=1)
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! setting initial guess to zero
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call psb_geaxpby(dzero,b_col,dzero,x_col,desc_a,info)
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! building the preconditioner
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!!$ write(0,*) 'Check in main program on hasv in:',allocated(desc_a%hashv)
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!!$ call flush(0)
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call psb_barrier(ictxt)
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t1 = psb_wtime()
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call mld_precbld(a,desc_a,pre,info)
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tprec = psb_wtime()-t1
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if (info /= 0) then
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write(0,*) 'INFO from precbld ',info
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call psb_error()
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goto 9999
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end if
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if (psb_get_errstatus() /= 0) then
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write(0,*) 'INFO from precbld ',info
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call psb_error()
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goto 9999
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end if
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!!$ write(0,*) 'Check in main program on hasv out:',allocated(desc_a%hashv)
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!!$ call flush(0)
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call psb_amx(ictxt,tprec)
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!!$ call psb_csprt(40+iam,a,head='% (A)')
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!!$ if (amroot) then
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!!$ write(*,'("Matrix : ",a)') mtrx(nm)
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!!$ write(*,'("RHS : ",a)') rhs(nm)
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!!$ write(*,'("Method : ",a)') cmethd
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!!$ write(*,'("Preconditioner : ",a)') precs(pp)%descr
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!!$ call mld_prec_descr(6,pre)
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!!$ call flush(6)
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!!$ end if
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iparm = 0
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call psb_barrier(ictxt)
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t1 = psb_wtime()
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call psb_krylov(cmethd,a,pre,b_col,x_col,eps,desc_a,info,&
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& itmax=itmax,iter=iter,err=err,itrace=itrace,&
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& irst=irst,istop=istopc)
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call psb_barrier(ictxt)
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t2 = psb_wtime() - t1
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call psb_amx(ictxt,t2)
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if (info/=0) then
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write(0,*) 'INFO from solver ',info
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call psb_errpush(4010,name,a_err='psb_SOLVER')
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goto 9999
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end if
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!!$ write(0,*) iam,'Done Solver'
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!!$ call flush(0)
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!!$ call flush(6)
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!!$ call psb_barrier(ictxt)
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if(amroot.and.out2) &
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& write(10,'(a20,2(1x,i3),1x,i5,3(1x,g9.4),1x,a8,1x,a)') &
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& mtrx(nm),np,precs(pp)%novr,iter,tprec,t2,t2+tprec,&
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& trim(cmethd),trim(precs(pp)%descr)
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if(amroot) &
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& write(0,'(a20,2(1x,i3),1x,i5,3(1x,g9.4),1x,a8,1x,a)') &
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& mtrx(nm),np,precs(pp)%novr,iter,tprec,t2,t2+tprec,&
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& trim(cmethd),trim(precs(pp)%descr)
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call flush(0)
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if (nt.lt.ntry) call mld_precfree(pre,info)
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if((t2+tprec).lt.mttot) then
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mtslv=t2
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mtprec=tprec
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mttot=t2+tprec
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end if
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end do
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!!$ call psb_csprt(50+iam,a,head='% (A)')
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!!$ write(0,*) 'Check hashv after precfree:',allocated(desc_a%hashv)
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!!$ call flush(0)
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call psb_geaxpby(done,b_col,dzero,r_col,desc_a,info)
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call psb_spmm(-done,a,x_col,done,r_col,desc_a,info)
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call psb_genrm2s(resmx,r_col,desc_a,info)
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call psb_geamaxs(resmxp,r_col,desc_a,info)
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ipsize = mld_sizeof(pre)
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asize = psb_sizeof(a)
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cdsize = psb_sizeof(desc_a)
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call psb_sum(ictxt,ipsize)
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call psb_sum(ictxt,asize)
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call psb_sum(ictxt,cdsize)
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if (amroot) then
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write(*,'("Matrix : ",a)') mtrx(nm)
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write(*,'("RHS : ",a)') rhs(nm)
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write(*,'("Method : ",a)') cmethd
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write(*,'("Preconditioner : ",a)') precs(pp)%descr
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call mld_prec_descr(pre)
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write(*,'("Computed solution on ",i4," processors")')np
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write(*,'(" ")')
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write(*,'("Iterations to convergence: ",i6)') iter
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write(*,'("Error indicator on exit : ",g9.4)') err
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write(*,'("Time to buil prec. : ",es10.4)')mtprec
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write(*,'("Time to solve matrix : ",es10.4)')mtslv
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write(*,'("Time per iteration : ",es10.4)')mtslv/(iter)
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write(*,'("Total time : ",es10.4)')mttot
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write(*,'("Residual norm 2 : ",es10.4)')resmx
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write(*,'("Residual norm inf : ",es10.4)')resmxp
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write(*,'("Total memory occupation for A: ",i10)')asize
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write(*,'("Total memory occupation for DESC_A: ",i10)')cdsize
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write(*,'("Total memory occupation for PRE: ",i10)')ipsize
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write(*,'(72("="))')
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write(*,'(" ")')
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write(*,'(" ")')
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write(*,'(" ")')
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if(out1) write(8,'(a20,2(1x,i3),1x,i5,5(1x,g9.4),1x,a8,1x,a)') mtrx(nm),&
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& np,precs(pp)%novr,&
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& iter,mtprec,mtslv,mttot,resmx,resmxp,&
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& trim(cmethd),trim(precs(pp)%descr)
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end if
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call mld_precfree(pre,info)
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if (.false.) then
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allocate(x_col_glob(m_problem),r_col_glob(m_problem),stat=ierr)
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if (ierr.ne.0) then
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write(0,*) 'allocation error: no data collection'
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else
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call psb_gather(x_col_glob,x_col,desc_a,info,root=0)
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call psb_gather(r_col_glob,r_col,desc_a,info,root=0)
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if (amroot) then
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write(0,'(" ")')
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write(0,'("Saving x on file")')
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write(outf3,'(a,a,a)')trim(mtrx(nm)),'.psb_sol.',&
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& tolower(trim(precs(pp)%descr))
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open(20,file=outf3)
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write(20,*) 'matrix: ',mtrx(nm)
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write(20,*) 'computed solution on ',np,' processors.'
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write(20,*) 'iterations to convergence: ',iter
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write(20,*) 'error indicator (infinity norm) on exit:', &
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& ' ||r||/(||a||||x||+||b||) = ',err
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write(20,*) 'max residual = ',resmx, resmxp
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do i=1,m_problem
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write(20,998) i,x_col_glob(i),b_col_glob(i)
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enddo
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close(20)
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end if
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end if
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end if
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998 format(i8,4(2x,g20.14))
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993 format(i6,4(1x,e12.6))
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!!$ if (pp == 1) call psb_csprt(40+iam,a,head='% (A)')
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end do
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call psb_gefree(b_col, desc_a,info)
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call psb_gefree(x_col, desc_a,info)
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call psb_spfree(a, desc_a,info)
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write(0,*) 'Final cdfree'
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call flush(0)
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call psb_cdfree(desc_a,info)
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deallocate(r_col,stat=info)
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deallocate(aux_b,stat=info)
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if (ipart==0) then
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deallocate(ivg,ipv,stat=info)
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endif
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end do
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9999 continue
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if(info /= 0) then
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call psb_error(ictxt)
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end if
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call psb_exit(ictxt)
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stop
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end program df_bench
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