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mld2p4-2:

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mlprec/impl/mld_cmlprec_aply.f90
 mlprec/impl/mld_d_extprol_bld.f90
 mlprec/impl/mld_dmlprec_aply.f90
 mlprec/impl/mld_smlprec_aply.f90
 mlprec/impl/mld_zmlprec_aply.f90
 mlprec/mld_d_prec_mod.f90

Rearrangmenet in MLPREC_APLY.
Experimental EXTPROL_BLD.
stopcriterion
Salvatore Filippone 8 years ago
parent f951725fe3
commit e200fbdb47
6 changed files with 271 additions and 230 deletions
Show Stats Download Patch File Download Diff File

80
mlprec/impl/mld_cmlprec_aply.f90
Unescape Escape View File

@ -703,6 +703,7 @@ contains
if (level < nlev) then
!
! Apply the first smoother
! The residual has been prepared before the recursive call.
!
if (pre) then
@ -764,23 +765,8 @@ contains
endif
! First guess is zero
call mlprec_wrk(level+1)%vy2l%zero()
call inner_ml_aply(level+1,p,mlprec_wrk,trans,work,info)
if (p%precv(level)%parms%ml_type == mld_wcycle_ml_) then
! On second call will use output y2l as initial guess
if (info == psb_success_) &
& call inner_ml_aply(level+1,p,mlprec_wrk,trans,work,info)
endif
if (info /= psb_success_) then
call psb_errpush(psb_err_internal_error_,name,&
& a_err='Error in recursive call')
goto 9999
end if
!
! Apply the prolongator
!
@ -793,23 +779,53 @@ contains
goto 9999
end if
if (p%precv(level)%parms%ml_type == mld_wcycle_ml_) then
! On second call will use output y2l as initial guess
call psb_geaxpby(cone,mlprec_wrk(level)%vx2l,&
& czero,mlprec_wrk(level)%vty,&
& p%precv(level)%base_desc,info)
if (info == psb_success_) call psb_spmm(-cone,p%precv(level)%base_a,&
& mlprec_wrk(level)%vy2l,cone,mlprec_wrk(level)%vty,&
& p%precv(level)%base_desc,info,work=work,trans=trans)
if (info == psb_success_) call psb_map_X2Y(cone,mlprec_wrk(level)%vty,&
& czero,mlprec_wrk(level+1)%vx2l,&
& p%precv(level+1)%map,info,work=work)
if (info /= psb_success_) then
call psb_errpush(psb_err_internal_error_,name,&
& a_err='Error during W-cycle restriction')
goto 9999
end if
call inner_ml_aply(level+1,p,mlprec_wrk,trans,work,info)
if (info == psb_success_) call psb_map_Y2X(cone,mlprec_wrk(level+1)%vy2l,&
& cone,mlprec_wrk(level)%vy2l,&
& p%precv(level+1)%map,info,work=work)
if (info /= psb_success_) then
call psb_errpush(psb_err_internal_error_,name,&
& a_err='Error during W recusion/prolongation')
goto 9999
end if
endif
if (post) then
if (.not.pre) then
!
! If we have only post, we need to compute the residual here.
!
call psb_geaxpby(cone,mlprec_wrk(level)%vx2l,&
& czero,mlprec_wrk(level)%vty,&
& p%precv(level)%base_desc,info)
call psb_spmm(-cone,p%precv(level)%base_a,mlprec_wrk(level)%vy2l,&
& cone,mlprec_wrk(level)%vty,p%precv(level)%base_desc,info,&
& work=work,trans=trans)
if (info /= psb_success_) then
call psb_errpush(psb_err_internal_error_,name,&
& a_err='Error during residue')
goto 9999
end if
call psb_geaxpby(cone,mlprec_wrk(level)%vx2l,&
& czero,mlprec_wrk(level)%vty,&
& p%precv(level)%base_desc,info)
if (info == psb_success_) call psb_spmm(-cone,p%precv(level)%base_a,&
& mlprec_wrk(level)%vy2l,&
& cone,mlprec_wrk(level)%vty,p%precv(level)%base_desc,info,&
& work=work,trans=trans)
if (info /= psb_success_) then
call psb_errpush(psb_err_internal_error_,name,&
& a_err='Error during residue')
goto 9999
end if
!
! Apply the second smoother
!
@ -818,13 +834,13 @@ contains
if (info == psb_success_) call p%precv(level)%sm2%apply(cone,&
& mlprec_wrk(level)%vty,cone,mlprec_wrk(level)%vy2l,&
& p%precv(level)%base_desc, trans,&
& sweeps,work,info,init='Y')
& sweeps,work,info,init='Z')
else
sweeps = p%precv(level)%parms%sweeps_pre
if (info == psb_success_) call p%precv(level)%sm%apply(cone,&
& mlprec_wrk(level)%vty,cone,mlprec_wrk(level)%vy2l,&
& p%precv(level)%base_desc, trans,&
& sweeps,work,info,init='Y')
& sweeps,work,info,init='Z')
end if
if (info /= psb_success_) then

8
mlprec/impl/mld_d_extprol_bld.f90
Unescape Escape View File

@ -84,9 +84,9 @@ subroutine mld_d_extprol_bld(a,desc_a,p,prolv,restrv,info,amold,vmold,imold)
! Arguments
type(psb_dspmat_type),intent(in), target :: a
type(psb_dspmat_type),intent(in), target :: prolv(:)
type(psb_dspmat_type),intent(in), target :: restrv(:)
type(psb_desc_type), intent(inout), target :: desc_a
type(psb_dspmat_type),intent(inout), target :: prolv(:)
type(psb_dspmat_type),intent(inout), target :: restrv(:)
type(psb_desc_type), intent(inout), target :: desc_a
type(mld_dprec_type),intent(inout),target :: p
integer(psb_ipk_), intent(out) :: info
class(psb_d_base_sparse_mat), intent(in), optional :: amold
@ -303,7 +303,7 @@ subroutine mld_d_extprol_bld(a,desc_a,p,prolv,restrv,info,amold,vmold,imold)
& mld_distr_mat_,is_distr_ml_coarse_mat)
end if
call mld_d_bld_extaggr(p%precv(i-1)%base_a,&
call mld_d_extaggr_bld(p%precv(i-1)%base_a,&
& p%precv(i-1)%base_desc,p%precv(i),restrv(i-1),prolv(i-1),info)

219
mlprec/impl/mld_dmlprec_aply.f90
Unescape Escape View File

@ -703,6 +703,7 @@ contains
if (level < nlev) then
!
! Apply the first smoother
! The residual has been prepared before the recursive call.
!
if (pre) then
@ -730,46 +731,42 @@ contains
!
! Compute the residual and call recursively
!
call psb_geaxpby(done,mlprec_wrk(level)%vx2l,&
& dzero,mlprec_wrk(level)%vty,&
& p%precv(level)%base_desc,info)
if (info == psb_success_) call psb_spmm(-done,p%precv(level)%base_a,&
& mlprec_wrk(level)%vy2l,done,mlprec_wrk(level)%vty,&
& p%precv(level)%base_desc,info,work=work,trans=trans)
if (info /= psb_success_) then
call psb_errpush(psb_err_internal_error_,name,&
& a_err='Error during residue')
goto 9999
end if
call psb_map_X2Y(done,mlprec_wrk(level)%vty,&
& dzero,mlprec_wrk(level+1)%vx2l,&
& p%precv(level+1)%map,info,work=work)
if (info /= psb_success_) then
call psb_errpush(psb_err_internal_error_,name,&
& a_err='Error during restriction')
goto 9999
end if
if (pre) then
call psb_geaxpby(done,mlprec_wrk(level)%vx2l,&
& dzero,mlprec_wrk(level)%vty,&
& p%precv(level)%base_desc,info)
if (info == psb_success_) call psb_spmm(-done,p%precv(level)%base_a,&
& mlprec_wrk(level)%vy2l,done,mlprec_wrk(level)%vty,&
& p%precv(level)%base_desc,info,work=work,trans=trans)
if (info /= psb_success_) then
call psb_errpush(psb_err_internal_error_,name,&
& a_err='Error during residue')
goto 9999
end if
call psb_map_X2Y(done,mlprec_wrk(level)%vty,&
& dzero,mlprec_wrk(level+1)%vx2l,&
& p%precv(level+1)%map,info,work=work)
if (info /= psb_success_) then
call psb_errpush(psb_err_internal_error_,name,&
& a_err='Error during restriction')
goto 9999
end if
else
! Shortcut: just transfer x2l.
call psb_map_X2Y(done,mlprec_wrk(level)%vx2l,&
& dzero,mlprec_wrk(level+1)%vx2l,&
& p%precv(level+1)%map,info,work=work)
if (info /= psb_success_) then
call psb_errpush(psb_err_internal_error_,name,&
& a_err='Error during restriction')
goto 9999
end if
endif
! First guess is zero
call mlprec_wrk(level+1)%vy2l%zero()
call inner_ml_aply(level+1,p,mlprec_wrk,trans,work,info)
if (p%precv(level)%parms%ml_type == mld_wcycle_ml_) then
! On second call will use output y2l as initial guess
if (info == psb_success_) &
& call inner_ml_aply(level+1,p,mlprec_wrk,trans,work,info)
endif
if (info /= psb_success_) then
call psb_errpush(psb_err_internal_error_,name,&
& a_err='Error in recursive call')
goto 9999
end if
!
! Apply the prolongator
!
@ -782,57 +779,68 @@ contains
goto 9999
end if
if (p%precv(level)%parms%ml_type == mld_wcycle_ml_) then
! On second call will use output y2l as initial guess
call psb_geaxpby(done,mlprec_wrk(level)%vx2l,&
& dzero,mlprec_wrk(level)%vty,&
& p%precv(level)%base_desc,info)
if (info == psb_success_) call psb_spmm(-done,p%precv(level)%base_a,&
& mlprec_wrk(level)%vy2l,done,mlprec_wrk(level)%vty,&
& p%precv(level)%base_desc,info,work=work,trans=trans)
if (info == psb_success_) call psb_map_X2Y(done,mlprec_wrk(level)%vty,&
& dzero,mlprec_wrk(level+1)%vx2l,&
& p%precv(level+1)%map,info,work=work)
if (info /= psb_success_) then
call psb_errpush(psb_err_internal_error_,name,&
& a_err='Error during W-cycle restriction')
goto 9999
end if
call inner_ml_aply(level+1,p,mlprec_wrk,trans,work,info)
if (info == psb_success_) call psb_map_Y2X(done,mlprec_wrk(level+1)%vy2l,&
& done,mlprec_wrk(level)%vy2l,&
& p%precv(level+1)%map,info,work=work)
if (info /= psb_success_) then
call psb_errpush(psb_err_internal_error_,name,&
& a_err='Error during W recusion/prolongation')
goto 9999
end if
endif
if (post) then
if (.false.) then
call psb_geaxpby(done,mlprec_wrk(level)%vx2l,&
& dzero,mlprec_wrk(level)%vty,&
& p%precv(level)%base_desc,info)
if (info == psb_success_) call psb_spmm(-done,p%precv(level)%base_a,&
& mlprec_wrk(level)%vy2l,done,mlprec_wrk(level)%vty,&
& p%precv(level)%base_desc,info,work=work,trans=trans)
if (info /= psb_success_) then
call psb_errpush(psb_err_internal_error_,name,&
& a_err='Error during residue')
goto 9999
end if
!
! Apply the second smoother
!
if (trans == 'N') then
sweeps = p%precv(level)%parms%sweeps_post
if (info == psb_success_) call p%precv(level)%sm2%apply(done,&
& mlprec_wrk(level)%vty,done,mlprec_wrk(level)%vy2l,&
& p%precv(level)%base_desc, trans,&
& sweeps,work,info,init='Z')
else
sweeps = p%precv(level)%parms%sweeps_pre
if (info == psb_success_) call p%precv(level)%sm%apply(done,&
& mlprec_wrk(level)%vty,done,mlprec_wrk(level)%vy2l,&
& p%precv(level)%base_desc, trans,&
& sweeps,work,info,init='Z')
end if
call psb_geaxpby(done,mlprec_wrk(level)%vx2l,&
& dzero,mlprec_wrk(level)%vty,&
& p%precv(level)%base_desc,info)
if (info == psb_success_) call psb_spmm(-done,p%precv(level)%base_a,&
& mlprec_wrk(level)%vy2l,&
& done,mlprec_wrk(level)%vty,p%precv(level)%base_desc,info,&
& work=work,trans=trans)
if (info /= psb_success_) then
call psb_errpush(psb_err_internal_error_,name,&
& a_err='Error during residue')
goto 9999
end if
!
! Apply the second smoother
!
if (trans == 'N') then
sweeps = p%precv(level)%parms%sweeps_post
if (info == psb_success_) call p%precv(level)%sm2%apply(done,&
& mlprec_wrk(level)%vty,done,mlprec_wrk(level)%vy2l,&
& p%precv(level)%base_desc, trans,&
& sweeps,work,info,init='Z')
else
!
! Apply the second smoother
!
if (trans == 'N') then
sweeps = p%precv(level)%parms%sweeps_post
if (info == psb_success_) call p%precv(level)%sm2%apply(done,&
& mlprec_wrk(level)%vx2l,done,mlprec_wrk(level)%vy2l,&
& p%precv(level)%base_desc, trans,&
& sweeps,work,info,init='Y')
else
sweeps = p%precv(level)%parms%sweeps_pre
if (info == psb_success_) call p%precv(level)%sm%apply(done,&
& mlprec_wrk(level)%vx2l,done,mlprec_wrk(level)%vy2l,&
& p%precv(level)%base_desc, trans,&
& sweeps,work,info,init='Y')
end if
sweeps = p%precv(level)%parms%sweeps_pre
if (info == psb_success_) call p%precv(level)%sm%apply(done,&
& mlprec_wrk(level)%vty,done,mlprec_wrk(level)%vy2l,&
& p%precv(level)%base_desc, trans,&
& sweeps,work,info,init='Z')
end if
if (info /= psb_success_) then
@ -892,8 +900,6 @@ contains
integer(psb_ipk_) :: debug_level, debug_unit
integer(psb_ipk_) :: nlev, ilev, sweeps
logical :: pre, post
real(psb_dpk_) :: tnrm
logical, parameter :: debug=.true.
character(len=20) :: name
@ -956,10 +962,7 @@ contains
& a_err='Error during 2-PRE smoother_apply')
goto 9999
end if
if (debug) then
tnrm = psb_genrm2(mlprec_wrk(level)%vy2l,p%precv(level)%base_desc,info)
write(0,*)' After first smoother y2l ',tnrm
end if
!
! Compute the residual and call recursively
@ -977,20 +980,11 @@ contains
& a_err='Error during residue')
goto 9999
end if
if (debug) then
tnrm = psb_genrm2(mlprec_wrk(level)%vty,p%precv(level)%base_desc,info)
write(0,*)' Residual before restriction ',tnrm
end if
! Apply the restriction
call psb_map_X2Y(done,mlprec_wrk(level)%vty,&
& dzero,mlprec_wrk(level + 1)%vx2l,&
& p%precv(level + 1)%map,info,work=work)
if (debug) then
tnrm = psb_genrm2(mlprec_wrk(level+1)%vx2l,p%precv(level+1)%base_desc,info)
write(0,*)' Output of restriction ',tnrm
end if
call mlprec_wrk(level + 1)%vy2l%zero()
if (info /= psb_success_) then
call psb_errpush(psb_err_internal_error_,name,&
@ -1000,7 +994,7 @@ contains
!Set the preconditioner
if ((level < nlev - 1)) then
if ((level < nlev - 2)) then
if (p%precv(level)%parms%ml_type == mld_kcyclesym_ml_) then
call mld_dinneritkcycle(p, mlprec_wrk, level + 1, trans, work, 'FCG')
elseif (p%precv(level)%parms%ml_type == mld_kcycle_ml_) then
@ -1030,21 +1024,22 @@ contains
end if
!
! Apply the smoother
! Compute the residual
!
call psb_geaxpby(done,mlprec_wrk(level)%vx2l,&
& dzero,mlprec_wrk(level)%vty,&
& p%precv(level)%base_desc,info)
if (info == psb_success_) call psb_spmm(-done,p%precv(level)%base_a,&
& mlprec_wrk(level)%vy2l,done,mlprec_wrk(level)%vty,&
& p%precv(level)%base_desc,info,work=work,trans=trans)
call psb_spmm(-done,p%precv(level)%base_a,mlprec_wrk(level)%vy2l,&
& done,mlprec_wrk(level)%vty,p%precv(level)%base_desc,info,&
& work=work,trans=trans)
if (info /= psb_success_) then
call psb_errpush(psb_err_internal_error_,name,&
& a_err='Error during residue')
goto 9999
end if
end if
!
! Apply the smoother
!
if (trans == 'N') then
sweeps = p%precv(level)%parms%sweeps_post
if (info == psb_success_) call p%precv(level)%sm2%apply(done,&
@ -1105,7 +1100,6 @@ contains
real(psb_dpk_) :: l2_norm, delta, rtol=0.25
real(psb_dpk_), allocatable :: temp_v(:)
integer(psb_ipk_) :: info, nlev, i, iter, max_iter=2, idx
logical, parameter :: debug=.true.
!Assemble rhs, w, v, v1, x
@ -1125,7 +1119,7 @@ contains
& p%precv(level)%base_desc,info,&
& scratch=.true.,mold=mlprec_wrk(level)%vx2l%v)
!!$ call x%zero()
call x%zero()
! rhs=vx2l and w=rhs
call psb_geaxpby(done,mlprec_wrk(level)%vx2l,dzero,rhs,&
@ -1141,8 +1135,8 @@ contains
goto 9999
end if
delta = psb_genrm2(w, p%precv(level)%base_desc, info)
if (debug) write(0,*)'On entry delta ',delta
delta = psb_gedot(w, w, p%precv(level)%base_desc, info)
!Apply the preconditioner
call mlprec_wrk(level)%vy2l%set(dzero)
@ -1185,11 +1179,10 @@ contains
l2_norm = psb_gedot(w, w, p%precv(level)%base_desc, info)
iter = 0
if (debug) write(0,*) 'Alpha ',alpha,' l2_norm',l2_norm,&
& ' delta_old',delta_old,' tau',tau
if (l2_norm <= rtol*delta) then
!Update solution x
call psb_geaxpby(alpha, d(idx), dzero, x, p%precv(level)%base_desc, info)
call psb_geaxpby(alpha, d(idx), done, x, p%precv(level)%base_desc, info)
else
iter = iter + 1
idx=mod(iter,2)
@ -1225,7 +1218,7 @@ contains
!Update solution
alpha=alpha-(tau1*tau3)/(tau*tau4)
call psb_geaxpby(alpha,d(idx - 1),dzero,x,p%precv(level)%base_desc,info)
call psb_geaxpby(alpha,d(idx - 1),done,x,p%precv(level)%base_desc,info)
alpha=tau3/tau4
call psb_geaxpby(alpha,d(idx),done,x,p%precv(level)%base_desc,info)
endif

80
mlprec/impl/mld_smlprec_aply.f90
Unescape Escape View File

@ -703,6 +703,7 @@ contains
if (level < nlev) then
!
! Apply the first smoother
! The residual has been prepared before the recursive call.
!
if (pre) then
@ -764,23 +765,8 @@ contains
endif
! First guess is zero
call mlprec_wrk(level+1)%vy2l%zero()
call inner_ml_aply(level+1,p,mlprec_wrk,trans,work,info)
if (p%precv(level)%parms%ml_type == mld_wcycle_ml_) then
! On second call will use output y2l as initial guess
if (info == psb_success_) &
& call inner_ml_aply(level+1,p,mlprec_wrk,trans,work,info)
endif
if (info /= psb_success_) then
call psb_errpush(psb_err_internal_error_,name,&
& a_err='Error in recursive call')
goto 9999
end if
!
! Apply the prolongator
!
@ -793,23 +779,53 @@ contains
goto 9999
end if
if (p%precv(level)%parms%ml_type == mld_wcycle_ml_) then
! On second call will use output y2l as initial guess
call psb_geaxpby(sone,mlprec_wrk(level)%vx2l,&
& szero,mlprec_wrk(level)%vty,&
& p%precv(level)%base_desc,info)
if (info == psb_success_) call psb_spmm(-sone,p%precv(level)%base_a,&
& mlprec_wrk(level)%vy2l,sone,mlprec_wrk(level)%vty,&
& p%precv(level)%base_desc,info,work=work,trans=trans)
if (info == psb_success_) call psb_map_X2Y(sone,mlprec_wrk(level)%vty,&
& szero,mlprec_wrk(level+1)%vx2l,&
& p%precv(level+1)%map,info,work=work)
if (info /= psb_success_) then
call psb_errpush(psb_err_internal_error_,name,&
& a_err='Error during W-cycle restriction')
goto 9999
end if
call inner_ml_aply(level+1,p,mlprec_wrk,trans,work,info)
if (info == psb_success_) call psb_map_Y2X(sone,mlprec_wrk(level+1)%vy2l,&
& sone,mlprec_wrk(level)%vy2l,&
& p%precv(level+1)%map,info,work=work)
if (info /= psb_success_) then
call psb_errpush(psb_err_internal_error_,name,&
& a_err='Error during W recusion/prolongation')
goto 9999
end if
endif
if (post) then
if (.not.pre) then
!
! If we have only post, we need to compute the residual here.
!
call psb_geaxpby(sone,mlprec_wrk(level)%vx2l,&
& szero,mlprec_wrk(level)%vty,&
& p%precv(level)%base_desc,info)
call psb_spmm(-sone,p%precv(level)%base_a,mlprec_wrk(level)%vy2l,&
& sone,mlprec_wrk(level)%vty,p%precv(level)%base_desc,info,&
& work=work,trans=trans)
if (info /= psb_success_) then
call psb_errpush(psb_err_internal_error_,name,&
& a_err='Error during residue')
goto 9999
end if
call psb_geaxpby(sone,mlprec_wrk(level)%vx2l,&
& szero,mlprec_wrk(level)%vty,&
& p%precv(level)%base_desc,info)
if (info == psb_success_) call psb_spmm(-sone,p%precv(level)%base_a,&
& mlprec_wrk(level)%vy2l,&
& sone,mlprec_wrk(level)%vty,p%precv(level)%base_desc,info,&
& work=work,trans=trans)
if (info /= psb_success_) then
call psb_errpush(psb_err_internal_error_,name,&
& a_err='Error during residue')
goto 9999
end if
!
! Apply the second smoother
!
@ -818,13 +834,13 @@ contains
if (info == psb_success_) call p%precv(level)%sm2%apply(sone,&
& mlprec_wrk(level)%vty,sone,mlprec_wrk(level)%vy2l,&
& p%precv(level)%base_desc, trans,&
& sweeps,work,info,init='Y')
& sweeps,work,info,init='Z')
else
sweeps = p%precv(level)%parms%sweeps_pre
if (info == psb_success_) call p%precv(level)%sm%apply(sone,&
& mlprec_wrk(level)%vty,sone,mlprec_wrk(level)%vy2l,&
& p%precv(level)%base_desc, trans,&
& sweeps,work,info,init='Y')
& sweeps,work,info,init='Z')
end if
if (info /= psb_success_) then

80
mlprec/impl/mld_zmlprec_aply.f90
Unescape Escape View File

@ -703,6 +703,7 @@ contains
if (level < nlev) then
!
! Apply the first smoother
! The residual has been prepared before the recursive call.
!
if (pre) then
@ -764,23 +765,8 @@ contains
endif
! First guess is zero
call mlprec_wrk(level+1)%vy2l%zero()
call inner_ml_aply(level+1,p,mlprec_wrk,trans,work,info)
if (p%precv(level)%parms%ml_type == mld_wcycle_ml_) then
! On second call will use output y2l as initial guess
if (info == psb_success_) &
& call inner_ml_aply(level+1,p,mlprec_wrk,trans,work,info)
endif
if (info /= psb_success_) then
call psb_errpush(psb_err_internal_error_,name,&
& a_err='Error in recursive call')
goto 9999
end if
!
! Apply the prolongator
!
@ -793,23 +779,53 @@ contains
goto 9999
end if
if (p%precv(level)%parms%ml_type == mld_wcycle_ml_) then
! On second call will use output y2l as initial guess
call psb_geaxpby(zone,mlprec_wrk(level)%vx2l,&
& zzero,mlprec_wrk(level)%vty,&
& p%precv(level)%base_desc,info)
if (info == psb_success_) call psb_spmm(-zone,p%precv(level)%base_a,&
& mlprec_wrk(level)%vy2l,zone,mlprec_wrk(level)%vty,&
& p%precv(level)%base_desc,info,work=work,trans=trans)
if (info == psb_success_) call psb_map_X2Y(zone,mlprec_wrk(level)%vty,&
& zzero,mlprec_wrk(level+1)%vx2l,&
& p%precv(level+1)%map,info,work=work)
if (info /= psb_success_) then
call psb_errpush(psb_err_internal_error_,name,&
& a_err='Error during W-cycle restriction')
goto 9999
end if
call inner_ml_aply(level+1,p,mlprec_wrk,trans,work,info)
if (info == psb_success_) call psb_map_Y2X(zone,mlprec_wrk(level+1)%vy2l,&
& zone,mlprec_wrk(level)%vy2l,&
& p%precv(level+1)%map,info,work=work)
if (info /= psb_success_) then
call psb_errpush(psb_err_internal_error_,name,&
& a_err='Error during W recusion/prolongation')
goto 9999
end if
endif
if (post) then
if (.not.pre) then
!
! If we have only post, we need to compute the residual here.
!
call psb_geaxpby(zone,mlprec_wrk(level)%vx2l,&
& zzero,mlprec_wrk(level)%vty,&
& p%precv(level)%base_desc,info)
call psb_spmm(-zone,p%precv(level)%base_a,mlprec_wrk(level)%vy2l,&
& zone,mlprec_wrk(level)%vty,p%precv(level)%base_desc,info,&
& work=work,trans=trans)
if (info /= psb_success_) then
call psb_errpush(psb_err_internal_error_,name,&
& a_err='Error during residue')
goto 9999
end if
call psb_geaxpby(zone,mlprec_wrk(level)%vx2l,&
& zzero,mlprec_wrk(level)%vty,&
& p%precv(level)%base_desc,info)
if (info == psb_success_) call psb_spmm(-zone,p%precv(level)%base_a,&
& mlprec_wrk(level)%vy2l,&
& zone,mlprec_wrk(level)%vty,p%precv(level)%base_desc,info,&
& work=work,trans=trans)
if (info /= psb_success_) then
call psb_errpush(psb_err_internal_error_,name,&
& a_err='Error during residue')
goto 9999
end if
!
! Apply the second smoother
!
@ -818,13 +834,13 @@ contains
if (info == psb_success_) call p%precv(level)%sm2%apply(zone,&
& mlprec_wrk(level)%vty,zone,mlprec_wrk(level)%vy2l,&
& p%precv(level)%base_desc, trans,&
& sweeps,work,info,init='Y')
& sweeps,work,info,init='Z')
else
sweeps = p%precv(level)%parms%sweeps_pre
if (info == psb_success_) call p%precv(level)%sm%apply(zone,&
& mlprec_wrk(level)%vty,zone,mlprec_wrk(level)%vy2l,&
& p%precv(level)%base_desc, trans,&
& sweeps,work,info,init='Y')
& sweeps,work,info,init='Z')
end if
if (info /= psb_success_) then

6
mlprec/mld_d_prec_mod.f90
Unescape Escape View File

@ -112,9 +112,9 @@ module mld_d_prec_mod
implicit none
! Arguments
type(psb_dspmat_type),intent(in), target :: a
type(psb_dspmat_type),intent(in), target :: prolv(:)
type(psb_dspmat_type),intent(in), target :: restrv(:)
type(psb_desc_type), intent(inout), target :: desc_a
type(psb_dspmat_type),intent(inout), target :: prolv(:)
type(psb_dspmat_type),intent(inout), target :: restrv(:)
type(psb_desc_type), intent(inout), target :: desc_a
type(mld_dprec_type),intent(inout),target :: p
integer(psb_ipk_), intent(out) :: info
class(psb_d_base_sparse_mat), intent(in), optional :: amold

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