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Fixed application and description of 1lev precs.

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This commit is contained in:
Salvatore Filippone
2017-09-21 15:51:58 +01:00
parent 4c99f51401
commit 212730c62d
25 changed files with 1100 additions and 820 deletions
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mlprec/impl/Makefile
+4 -4
View File
@@ -21,25 +21,25 @@ MPFOBJS=$(SMPFOBJS) $(DMPFOBJS) $(CMPFOBJS) $(ZMPFOBJS)
MPCOBJS=mld_dslud_interface.o mld_zslud_interface.o
DINNEROBJS= mld_dmlprec_bld.o \
DINNEROBJS= mld_dmlprec_bld.o mld_dfile_prec_descr.o \
mld_d_smoothers_bld.o mld_d_hierarchy_bld.o \
mld_dilu0_fact.o mld_diluk_fact.o mld_dilut_fact.o mld_daggrmap_bld.o \
mld_d_dec_map_bld.o mld_dmlprec_aply.o mld_daggrmat_asb.o \
$(DMPFOBJS) mld_d_extprol_bld.o mld_d_lev_aggrmap_bld.o mld_d_lev_aggrmat_asb.o
SINNEROBJS= mld_smlprec_bld.o \
SINNEROBJS= mld_smlprec_bld.o mld_sfile_prec_descr.o \
mld_s_smoothers_bld.o mld_s_hierarchy_bld.o \
mld_silu0_fact.o mld_siluk_fact.o mld_silut_fact.o mld_saggrmap_bld.o \
mld_s_dec_map_bld.o mld_smlprec_aply.o mld_saggrmat_asb.o \
$(SMPFOBJS) mld_s_extprol_bld.o mld_s_lev_aggrmap_bld.o mld_s_lev_aggrmat_asb.o
ZINNEROBJS= mld_zmlprec_bld.o \
ZINNEROBJS= mld_zmlprec_bld.o mld_zfile_prec_descr.o \
mld_z_smoothers_bld.o mld_z_hierarchy_bld.o \
mld_zilu0_fact.o mld_ziluk_fact.o mld_zilut_fact.o mld_zaggrmap_bld.o \
mld_z_dec_map_bld.o mld_zmlprec_aply.o mld_zaggrmat_asb.o \
$(ZMPFOBJS) mld_z_extprol_bld.o mld_z_lev_aggrmap_bld.o mld_z_lev_aggrmat_asb.o
CINNEROBJS= mld_cmlprec_bld.o \
CINNEROBJS= mld_cmlprec_bld.o mld_cfile_prec_descr.o \
mld_c_smoothers_bld.o mld_c_hierarchy_bld.o \
mld_cilu0_fact.o mld_ciluk_fact.o mld_cilut_fact.o mld_caggrmap_bld.o \
mld_c_dec_map_bld.o mld_cmlprec_aply.o mld_caggrmat_asb.o \
mlprec/impl/mld_cfile_prec_descr.f90
+193
View File
@@ -0,0 +1,193 @@
!
!
! MLD2P4 version 2.1
! MultiLevel Domain Decomposition Parallel Preconditioners Package
! based on PSBLAS (Parallel Sparse BLAS version 3.5)
!
! (C) Copyright 2008, 2010, 2012, 2015, 2017
!
! Salvatore Filippone Cranfield University, UK
! Pasqua D'Ambra IAC-CNR, Naples, IT
! Daniela di Serafino University of Campania "L. Vanvitelli", Caserta, IT
!
! 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.
!
!
! File: mld_dfile_prec_descr.f90
!
!
! Subroutine: mld_file_prec_descr
! Version: complex
!
! This routine prints a description of the preconditioner to the standard
! output or to a file. It must be called after the preconditioner has been
! built by mld_precbld.
!
! Arguments:
! p - type(mld_Tprec_type), input.
! The preconditioner data structure to be printed out.
! info - integer, output.
! error code.
! iout - integer, input, optional.
! The id of the file where the preconditioner description
! will be printed. If iout is not present, then the standard
! output is condidered.
! root - integer, input, optional.
! The id of the process printing the message; -1 acts as a wildcard.
! Default is psb_root_
!
subroutine mld_cfile_prec_descr(prec,iout,root)
use psb_base_mod
use mld_c_prec_mod, mld_protect_name => mld_cfile_prec_descr
use mld_c_inner_mod
use mld_c_gs_solver
implicit none
! Arguments
class(mld_cprec_type), intent(in) :: prec
integer(psb_ipk_), intent(in), optional :: iout
integer(psb_ipk_), intent(in), optional :: root
! Local variables
integer(psb_ipk_) :: ilev, nlev, ilmin, info, nswps
integer(psb_ipk_) :: ictxt, me, np
logical :: is_symgs
character(len=20), parameter :: name='mld_file_prec_descr'
integer(psb_ipk_) :: iout_
integer(psb_ipk_) :: root_
info = psb_success_
if (present(iout)) then
iout_ = iout
else
iout_ = psb_out_unit
end if
if (iout_ < 0) iout_ = psb_out_unit
ictxt = prec%ictxt
if (allocated(prec%precv)) then
call psb_info(ictxt,me,np)
if (present(root)) then
root_ = root
else
root_ = psb_root_
end if
if (root_ == -1) root_ = me
!
! The preconditioner description is printed by processor psb_root_.
! This agrees with the fact that all the parameters defining the
! preconditioner have the same values on all the procs (this is
! ensured by mld_precbld).
!
if (me == root_) then
nlev = size(prec%precv)
do ilev = 1, nlev
if (.not.allocated(prec%precv(ilev)%sm)) then
info = 3111
write(iout_,*) ' ',name,&
& ': error: inconsistent MLPREC part, should call MLD_PRECINIT'
return
endif
end do
write(iout_,*)
write(iout_,'(a)') 'Preconditioner description'
if (nlev == 1) then
!
! Here we have a gigantic kludge just to handle Symmetrized Gauss-Seidel.
! Will need rethinking...
!
if (allocated(prec%precv(1)%sm2a)) then
is_symgs = .false.
select type(sv2 => prec%precv(1)%sm2a%sv)
class is (mld_c_bwgs_solver_type)
select type(sv1 => prec%precv(1)%sm%sv)
class is (mld_c_gs_solver_type)
is_symgs = .true.
end select
end select
if (is_symgs) then
write(iout_,*) ' Forward-Backward (symmetrized) Hybrid Gauss-Seidel'
else
call prec%precv(1)%sm%descr(info,iout=iout_)
call prec%precv(1)%sm2a%descr(info,iout=iout_)
end if
else
call prec%precv(1)%sm%descr(info,iout=iout_)
nswps = max(prec%precv(1)%parms%sweeps_pre,prec%precv(1)%parms%sweeps_post)
end if
nswps = max(prec%precv(1)%parms%sweeps_pre,prec%precv(1)%parms%sweeps_post)
if (nswps > 1) write(iout_,*) ' Number of sweeps : ',nswps
write(iout_,*)
else if (nlev > 1) then
!
! Print description of base preconditioner
!
write(iout_,*) 'Multilevel Preconditioner'
write(iout_,*) 'Outer sweeps:',prec%outer_sweeps
write(iout_,*)
write(iout_,*) 'Smoother: '
call prec%precv(1)%sm%descr(info,iout=iout_)
if (allocated(prec%precv(1)%sm2a)) then
write(iout_,*) 'Post smoother:'
call prec%precv(1)%sm2a%descr(info,iout=iout_)
end if
!
! Print multilevel details
!
write(iout_,*)
write(iout_,*) 'Multilevel hierarchy: '
write(iout_,*) ' Number of levels : ',nlev
write(iout_,*) ' Operator complexity: ',prec%get_complexity()
ilmin = 2
if (nlev == 2) ilmin=1
do ilev=ilmin,nlev
call prec%precv(ilev)%descr(ilev,nlev,ilmin,info,iout=iout_)
end do
write(iout_,*)
else
write(iout_,*) trim(name), &
& ': invalid preconditioner array size ?',nlev
info = -2
return
end if
end if
else
write(iout_,*) trim(name), &
& ': Error: no base preconditioner available, something is wrong!'
info = -2
return
endif
end subroutine mld_cfile_prec_descr
mlprec/impl/mld_cprecaply.f90
+66 -59
View File
@@ -89,10 +89,10 @@ subroutine mld_cprecaply(prec,x,y,desc_data,info,trans,work)
! Local variables
character :: trans_
complex(psb_spk_), pointer :: work_(:)
complex(psb_spk_), allocatable :: ww(:)
complex(psb_spk_), allocatable :: w1(:), w2(:)
integer(psb_ipk_) :: ictxt,np,me
integer(psb_ipk_) :: err_act,iwsz
integer(psb_ipk_) :: err_act,iwsz, k, nswps
character(len=20) :: name
name='mld_cprecaply'
@@ -143,42 +143,44 @@ subroutine mld_cprecaply(prec,x,y,desc_data,info,trans,work)
!
! Number of levels = 1: apply the base preconditioner
!
!
! Number of levels = 1: apply the base preconditioner
!
nswps = max(prec%precv(1)%parms%sweeps_pre,prec%precv(1)%parms%sweeps_post)
if (allocated(prec%precv(1)%sm2a)) then
!
! This is a kludge for handling the symmetrized GS case.
! Will need some rethinking.
!
allocate(ww(size(x)))
call psb_geasb(w1,desc_data,info,scratch=.true.)
call psb_geasb(w2,desc_data,info,scratch=.true.)
call psb_geaxpby(cone,x,czero,w1,desc_data,info)
select case(trans_)
case ('N')
call prec%precv(1)%sm%apply(cone,x,czero,ww,desc_data,trans_,&
& max(prec%precv(1)%parms%sweeps_pre,prec%precv(1)%parms%sweeps_post),&
& work_,info)
call prec%precv(1)%sm2a%apply(cone,ww,czero,y,desc_data,trans_,&
& max(prec%precv(1)%parms%sweeps_pre,prec%precv(1)%parms%sweeps_post),&
& work_,info)
do k=1, nswps
call prec%precv(1)%sm%apply(cone,w1,czero,w2,desc_data,trans_,&
& ione, work_,info)
call prec%precv(1)%sm2a%apply(cone,w2,czero,w1,desc_data,trans_,&
& ione, work_,info)
end do
case('T','C')
call prec%precv(1)%sm2a%apply(cone,x,czero,ww,desc_data,trans_,&
& max(prec%precv(1)%parms%sweeps_pre,prec%precv(1)%parms%sweeps_post),&
& work_,info)
call prec%precv(1)%sm%apply(cone,ww,czero,y,desc_data,trans_,&
& max(prec%precv(1)%parms%sweeps_pre,prec%precv(1)%parms%sweeps_post),&
& work_,info)
do k=1, nswps
call prec%precv(1)%sm2a%apply(cone,w1,czero,w2,desc_data,trans_,&
& ione, work_,info)
call prec%precv(1)%sm%apply(cone,w2,czero,w1,desc_data,trans_,&
& ione, work_,info)
end do
case default
info = psb_err_from_subroutine_
call psb_errpush(info,name,a_err='Invalid trans')
goto 9999
end select
deallocate(ww)
call psb_geaxpby(cone,w1,czero,y,desc_data,info)
call psb_gefree(w1,desc_data,info)
call psb_gefree(w2,desc_data,info)
else
call prec%precv(1)%sm%apply(cone,x,czero,y,desc_data,trans_,&
& max(prec%precv(1)%parms%sweeps_pre,prec%precv(1)%parms%sweeps_post), &
& work_,info)
& nswps, work_,info)
end if
else
info = psb_err_from_subroutine_ai_
@@ -255,7 +257,7 @@ subroutine mld_cprecaply1(prec,x,desc_data,info,trans)
! Local variables
integer(psb_ipk_) :: ictxt,np,me
integer(psb_ipk_) :: err_act
complex(psb_spk_), pointer :: WW(:), w1(:)
complex(psb_spk_), pointer :: ww(:), w1(:)
character(len=20) :: name
name='mld_cprecaply1'
@@ -282,7 +284,7 @@ subroutine mld_cprecaply1(prec,x,desc_data,info,trans)
end if
x(:) = ww(:)
deallocate(ww,W1,stat=info)
deallocate(ww,w1,stat=info)
if (info /= psb_success_) then
info = psb_err_alloc_dealloc_
call psb_errpush(info,name)
@@ -319,7 +321,7 @@ subroutine mld_cprecaply2_vect(prec,x,y,desc_data,info,trans,work)
character :: trans_
complex(psb_spk_), pointer :: work_(:)
integer(psb_ipk_) :: ictxt,np,me
integer(psb_ipk_) :: err_act,iwsz
integer(psb_ipk_) :: err_act,iwsz, k, nswps
character(len=20) :: name
name='mld_cprecaply'
@@ -370,42 +372,47 @@ subroutine mld_cprecaply2_vect(prec,x,y,desc_data,info,trans,work)
!
! Number of levels = 1: apply the base preconditioner
!
nswps = max(prec%precv(1)%parms%sweeps_pre,prec%precv(1)%parms%sweeps_post)
if (allocated(prec%precv(1)%sm2a)) then
!
! This is a kludge for handling the symmetrized GS case.
! Will need some rethinking.
!
twoside: block
type(psb_c_vect_type) :: ww
call psb_geasb(ww,desc_data,info,mold=x%v,scratch=.true.)
type(psb_c_vect_type) :: w1,w2
call psb_geasb(w1,desc_data,info,mold=x%v,scratch=.true.)
call psb_geasb(w2,desc_data,info,mold=x%v,scratch=.true.)
call psb_geaxpby(cone,x,czero,w1,desc_data,info)
select case(trans_)
case ('N')
call prec%precv(1)%sm%apply(cone,x,czero,ww,desc_data,trans_,&
& max(prec%precv(1)%parms%sweeps_pre,prec%precv(1)%parms%sweeps_post),&
& work_,info)
call prec%precv(1)%sm2a%apply(cone,ww,czero,y,desc_data,trans_,&
& max(prec%precv(1)%parms%sweeps_pre,prec%precv(1)%parms%sweeps_post),&
& work_,info)
do k=1, nswps
call prec%precv(1)%sm%apply(cone,w1,czero,w2,desc_data,trans_,&
& ione, work_,info)
call prec%precv(1)%sm2a%apply(cone,w2,czero,w1,desc_data,trans_,&
& ione, work_,info)
end do
case('T','C')
call prec%precv(1)%sm2a%apply(cone,x,czero,ww,desc_data,trans_,&
& max(prec%precv(1)%parms%sweeps_pre,prec%precv(1)%parms%sweeps_post),&
& work_,info)
call prec%precv(1)%sm%apply(cone,ww,czero,y,desc_data,trans_,&
& max(prec%precv(1)%parms%sweeps_pre,prec%precv(1)%parms%sweeps_post),&
& work_,info)
do k=1, nswps
call prec%precv(1)%sm2a%apply(cone,w1,czero,w2,desc_data,trans_,&
& ione, work_,info)
call prec%precv(1)%sm%apply(cone,w2,czero,w1,desc_data,trans_,&
& ione, work_,info)
end do
case default
info = psb_err_from_subroutine_
call psb_errpush(info,name,a_err='Invalid trans')
goto 9999
end select
call psb_gefree(ww,desc_data,info)
call psb_geaxpby(cone,w1,czero,y,desc_data,info)
call psb_gefree(w1,desc_data,info)
call psb_gefree(w2,desc_data,info)
end block twoside
else
call prec%precv(1)%sm%apply(cone,x,czero,y,desc_data,trans_,&
& max(prec%precv(1)%parms%sweeps_pre,prec%precv(1)%parms%sweeps_post),&
& work_,info)
& nswps,work_,info)
end if
else
@@ -454,7 +461,7 @@ subroutine mld_cprecaply1_vect(prec,x,desc_data,info,trans,work)
type(psb_c_vect_type) :: ww
complex(psb_spk_), pointer :: work_(:)
integer(psb_ipk_) :: ictxt,np,me
integer(psb_ipk_) :: err_act,iwsz
integer(psb_ipk_) :: err_act,iwsz, k, nswps
character(len=20) :: name
name='mld_cprecaply'
@@ -506,6 +513,7 @@ subroutine mld_cprecaply1_vect(prec,x,desc_data,info,trans,work)
!
! Number of levels = 1: apply the base preconditioner
!
nswps = max(prec%precv(1)%parms%sweeps_pre,prec%precv(1)%parms%sweeps_post)
if (allocated(prec%precv(1)%sm2a)) then
!
! This is a kludge for handling the symmetrized GS case.
@@ -513,19 +521,19 @@ subroutine mld_cprecaply1_vect(prec,x,desc_data,info,trans,work)
!
select case(trans_)
case ('N')
call prec%precv(1)%sm%apply(cone,x,czero,ww,desc_data,trans_,&
& max(prec%precv(1)%parms%sweeps_pre,prec%precv(1)%parms%sweeps_post),&
& work_,info)
call prec%precv(1)%sm2a%apply(cone,ww,czero,x,desc_data,trans_,&
& max(prec%precv(1)%parms%sweeps_pre,prec%precv(1)%parms%sweeps_post),&
& work_,info)
do k=1, nswps
call prec%precv(1)%sm%apply(cone,x,czero,ww,desc_data,trans_,&
& ione, work_,info)
call prec%precv(1)%sm2a%apply(cone,ww,czero,x,desc_data,trans_,&
& ione, work_,info)
end do
case('T','C')
call prec%precv(1)%sm2a%apply(cone,x,czero,ww,desc_data,trans_,&
& max(prec%precv(1)%parms%sweeps_pre,prec%precv(1)%parms%sweeps_post),&
& work_,info)
call prec%precv(1)%sm%apply(cone,ww,czero,x,desc_data,trans_,&
& max(prec%precv(1)%parms%sweeps_pre,prec%precv(1)%parms%sweeps_post),&
& work_,info)
do k=1, nswps
call prec%precv(1)%sm2a%apply(cone,x,czero,ww,desc_data,trans_,&
& ione, work_,info)
call prec%precv(1)%sm%apply(cone,ww,czero,x,desc_data,trans_,&
& ione, work_,info)
end do
case default
info = psb_err_from_subroutine_
call psb_errpush(info,name,a_err='Invalid trans')
@@ -534,8 +542,7 @@ subroutine mld_cprecaply1_vect(prec,x,desc_data,info,trans,work)
else
call prec%precv(1)%sm%apply(cone,x,czero,ww,desc_data,trans_,&
& max(prec%precv(1)%parms%sweeps_pre,prec%precv(1)%parms%sweeps_post),&
& work_,info)
& nswps, work_,info)
if (info == 0) call psb_geaxpby(cone,ww,czero,x,desc_data,info)
end if
else
mlprec/impl/mld_dfile_prec_descr.f90
+193
View File
@@ -0,0 +1,193 @@
!
!
! MLD2P4 version 2.1
! MultiLevel Domain Decomposition Parallel Preconditioners Package
! based on PSBLAS (Parallel Sparse BLAS version 3.5)
!
! (C) Copyright 2008, 2010, 2012, 2015, 2017
!
! Salvatore Filippone Cranfield University, UK
! Pasqua D'Ambra IAC-CNR, Naples, IT
! Daniela di Serafino University of Campania "L. Vanvitelli", Caserta, IT
!
! 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.
!
!
! File: mld_dfile_prec_descr.f90
!
!
! Subroutine: mld_file_prec_descr
! Version: real
!
! This routine prints a description of the preconditioner to the standard
! output or to a file. It must be called after the preconditioner has been
! built by mld_precbld.
!
! Arguments:
! p - type(mld_Tprec_type), input.
! The preconditioner data structure to be printed out.
! info - integer, output.
! error code.
! iout - integer, input, optional.
! The id of the file where the preconditioner description
! will be printed. If iout is not present, then the standard
! output is condidered.
! root - integer, input, optional.
! The id of the process printing the message; -1 acts as a wildcard.
! Default is psb_root_
!
subroutine mld_dfile_prec_descr(prec,iout,root)
use psb_base_mod
use mld_d_prec_mod, mld_protect_name => mld_dfile_prec_descr
use mld_d_inner_mod
use mld_d_gs_solver
implicit none
! Arguments
class(mld_dprec_type), intent(in) :: prec
integer(psb_ipk_), intent(in), optional :: iout
integer(psb_ipk_), intent(in), optional :: root
! Local variables
integer(psb_ipk_) :: ilev, nlev, ilmin, info, nswps
integer(psb_ipk_) :: ictxt, me, np
logical :: is_symgs
character(len=20), parameter :: name='mld_file_prec_descr'
integer(psb_ipk_) :: iout_
integer(psb_ipk_) :: root_
info = psb_success_
if (present(iout)) then
iout_ = iout
else
iout_ = psb_out_unit
end if
if (iout_ < 0) iout_ = psb_out_unit
ictxt = prec%ictxt
if (allocated(prec%precv)) then
call psb_info(ictxt,me,np)
if (present(root)) then
root_ = root
else
root_ = psb_root_
end if
if (root_ == -1) root_ = me
!
! The preconditioner description is printed by processor psb_root_.
! This agrees with the fact that all the parameters defining the
! preconditioner have the same values on all the procs (this is
! ensured by mld_precbld).
!
if (me == root_) then
nlev = size(prec%precv)
do ilev = 1, nlev
if (.not.allocated(prec%precv(ilev)%sm)) then
info = 3111
write(iout_,*) ' ',name,&
& ': error: inconsistent MLPREC part, should call MLD_PRECINIT'
return
endif
end do
write(iout_,*)
write(iout_,'(a)') 'Preconditioner description'
if (nlev == 1) then
!
! Here we have a gigantic kludge just to handle Symmetrized Gauss-Seidel.
! Will need rethinking...
!
if (allocated(prec%precv(1)%sm2a)) then
is_symgs = .false.
select type(sv2 => prec%precv(1)%sm2a%sv)
class is (mld_d_bwgs_solver_type)
select type(sv1 => prec%precv(1)%sm%sv)
class is (mld_d_gs_solver_type)
is_symgs = .true.
end select
end select
if (is_symgs) then
write(iout_,*) ' Forward-Backward (symmetrized) Hybrid Gauss-Seidel'
else
call prec%precv(1)%sm%descr(info,iout=iout_)
call prec%precv(1)%sm2a%descr(info,iout=iout_)
end if
else
call prec%precv(1)%sm%descr(info,iout=iout_)
nswps = max(prec%precv(1)%parms%sweeps_pre,prec%precv(1)%parms%sweeps_post)
end if
nswps = max(prec%precv(1)%parms%sweeps_pre,prec%precv(1)%parms%sweeps_post)
if (nswps > 1) write(iout_,*) ' Number of sweeps : ',nswps
write(iout_,*)
else if (nlev > 1) then
!
! Print description of base preconditioner
!
write(iout_,*) 'Multilevel Preconditioner'
write(iout_,*) 'Outer sweeps:',prec%outer_sweeps
write(iout_,*)
write(iout_,*) 'Smoother: '
call prec%precv(1)%sm%descr(info,iout=iout_)
if (allocated(prec%precv(1)%sm2a)) then
write(iout_,*) 'Post smoother:'
call prec%precv(1)%sm2a%descr(info,iout=iout_)
end if
!
! Print multilevel details
!
write(iout_,*)
write(iout_,*) 'Multilevel hierarchy: '
write(iout_,*) ' Number of levels : ',nlev
write(iout_,*) ' Operator complexity: ',prec%get_complexity()
ilmin = 2
if (nlev == 2) ilmin=1
do ilev=ilmin,nlev
call prec%precv(ilev)%descr(ilev,nlev,ilmin,info,iout=iout_)
end do
write(iout_,*)
else
write(iout_,*) trim(name), &
& ': invalid preconditioner array size ?',nlev
info = -2
return
end if
end if
else
write(iout_,*) trim(name), &
& ': Error: no base preconditioner available, something is wrong!'
info = -2
return
endif
end subroutine mld_dfile_prec_descr
mlprec/impl/mld_dprecaply.f90
+66 -59
View File
@@ -89,10 +89,10 @@ subroutine mld_dprecaply(prec,x,y,desc_data,info,trans,work)
! Local variables
character :: trans_
real(psb_dpk_), pointer :: work_(:)
real(psb_dpk_), allocatable :: ww(:)
real(psb_dpk_), allocatable :: w1(:), w2(:)
integer(psb_ipk_) :: ictxt,np,me
integer(psb_ipk_) :: err_act,iwsz
integer(psb_ipk_) :: err_act,iwsz, k, nswps
character(len=20) :: name
name='mld_dprecaply'
@@ -143,42 +143,44 @@ subroutine mld_dprecaply(prec,x,y,desc_data,info,trans,work)
!
! Number of levels = 1: apply the base preconditioner
!
!
! Number of levels = 1: apply the base preconditioner
!
nswps = max(prec%precv(1)%parms%sweeps_pre,prec%precv(1)%parms%sweeps_post)
if (allocated(prec%precv(1)%sm2a)) then
!
! This is a kludge for handling the symmetrized GS case.
! Will need some rethinking.
!
allocate(ww(size(x)))
call psb_geasb(w1,desc_data,info,scratch=.true.)
call psb_geasb(w2,desc_data,info,scratch=.true.)
call psb_geaxpby(done,x,dzero,w1,desc_data,info)
select case(trans_)
case ('N')
call prec%precv(1)%sm%apply(done,x,dzero,ww,desc_data,trans_,&
& max(prec%precv(1)%parms%sweeps_pre,prec%precv(1)%parms%sweeps_post),&
& work_,info)
call prec%precv(1)%sm2a%apply(done,ww,dzero,y,desc_data,trans_,&
& max(prec%precv(1)%parms%sweeps_pre,prec%precv(1)%parms%sweeps_post),&
& work_,info)
do k=1, nswps
call prec%precv(1)%sm%apply(done,w1,dzero,w2,desc_data,trans_,&
& ione, work_,info)
call prec%precv(1)%sm2a%apply(done,w2,dzero,w1,desc_data,trans_,&
& ione, work_,info)
end do
case('T','C')
call prec%precv(1)%sm2a%apply(done,x,dzero,ww,desc_data,trans_,&
& max(prec%precv(1)%parms%sweeps_pre,prec%precv(1)%parms%sweeps_post),&
& work_,info)
call prec%precv(1)%sm%apply(done,ww,dzero,y,desc_data,trans_,&
& max(prec%precv(1)%parms%sweeps_pre,prec%precv(1)%parms%sweeps_post),&
& work_,info)
do k=1, nswps
call prec%precv(1)%sm2a%apply(done,w1,dzero,w2,desc_data,trans_,&
& ione, work_,info)
call prec%precv(1)%sm%apply(done,w2,dzero,w1,desc_data,trans_,&
& ione, work_,info)
end do
case default
info = psb_err_from_subroutine_
call psb_errpush(info,name,a_err='Invalid trans')
goto 9999
end select
deallocate(ww)
call psb_geaxpby(done,w1,dzero,y,desc_data,info)
call psb_gefree(w1,desc_data,info)
call psb_gefree(w2,desc_data,info)
else
call prec%precv(1)%sm%apply(done,x,dzero,y,desc_data,trans_,&
& max(prec%precv(1)%parms%sweeps_pre,prec%precv(1)%parms%sweeps_post), &
& work_,info)
& nswps, work_,info)
end if
else
info = psb_err_from_subroutine_ai_
@@ -255,7 +257,7 @@ subroutine mld_dprecaply1(prec,x,desc_data,info,trans)
! Local variables
integer(psb_ipk_) :: ictxt,np,me
integer(psb_ipk_) :: err_act
real(psb_dpk_), pointer :: WW(:), w1(:)
real(psb_dpk_), pointer :: ww(:), w1(:)
character(len=20) :: name
name='mld_dprecaply1'
@@ -282,7 +284,7 @@ subroutine mld_dprecaply1(prec,x,desc_data,info,trans)
end if
x(:) = ww(:)
deallocate(ww,W1,stat=info)
deallocate(ww,w1,stat=info)
if (info /= psb_success_) then
info = psb_err_alloc_dealloc_
call psb_errpush(info,name)
@@ -319,7 +321,7 @@ subroutine mld_dprecaply2_vect(prec,x,y,desc_data,info,trans,work)
character :: trans_
real(psb_dpk_), pointer :: work_(:)
integer(psb_ipk_) :: ictxt,np,me
integer(psb_ipk_) :: err_act,iwsz
integer(psb_ipk_) :: err_act,iwsz, k, nswps
character(len=20) :: name
name='mld_dprecaply'
@@ -370,42 +372,47 @@ subroutine mld_dprecaply2_vect(prec,x,y,desc_data,info,trans,work)
!
! Number of levels = 1: apply the base preconditioner
!
nswps = max(prec%precv(1)%parms%sweeps_pre,prec%precv(1)%parms%sweeps_post)
if (allocated(prec%precv(1)%sm2a)) then
!
! This is a kludge for handling the symmetrized GS case.
! Will need some rethinking.
!
twoside: block
type(psb_d_vect_type) :: ww
call psb_geasb(ww,desc_data,info,mold=x%v,scratch=.true.)
type(psb_d_vect_type) :: w1,w2
call psb_geasb(w1,desc_data,info,mold=x%v,scratch=.true.)
call psb_geasb(w2,desc_data,info,mold=x%v,scratch=.true.)
call psb_geaxpby(done,x,dzero,w1,desc_data,info)
select case(trans_)
case ('N')
call prec%precv(1)%sm%apply(done,x,dzero,ww,desc_data,trans_,&
& max(prec%precv(1)%parms%sweeps_pre,prec%precv(1)%parms%sweeps_post),&
& work_,info)
call prec%precv(1)%sm2a%apply(done,ww,dzero,y,desc_data,trans_,&
& max(prec%precv(1)%parms%sweeps_pre,prec%precv(1)%parms%sweeps_post),&
& work_,info)
do k=1, nswps
call prec%precv(1)%sm%apply(done,w1,dzero,w2,desc_data,trans_,&
& ione, work_,info)
call prec%precv(1)%sm2a%apply(done,w2,dzero,w1,desc_data,trans_,&
& ione, work_,info)
end do
case('T','C')
call prec%precv(1)%sm2a%apply(done,x,dzero,ww,desc_data,trans_,&
& max(prec%precv(1)%parms%sweeps_pre,prec%precv(1)%parms%sweeps_post),&
& work_,info)
call prec%precv(1)%sm%apply(done,ww,dzero,y,desc_data,trans_,&
& max(prec%precv(1)%parms%sweeps_pre,prec%precv(1)%parms%sweeps_post),&
& work_,info)
do k=1, nswps
call prec%precv(1)%sm2a%apply(done,w1,dzero,w2,desc_data,trans_,&
& ione, work_,info)
call prec%precv(1)%sm%apply(done,w2,dzero,w1,desc_data,trans_,&
& ione, work_,info)
end do
case default
info = psb_err_from_subroutine_
call psb_errpush(info,name,a_err='Invalid trans')
goto 9999
end select
call psb_gefree(ww,desc_data,info)
call psb_geaxpby(done,w1,dzero,y,desc_data,info)
call psb_gefree(w1,desc_data,info)
call psb_gefree(w2,desc_data,info)
end block twoside
else
call prec%precv(1)%sm%apply(done,x,dzero,y,desc_data,trans_,&
& max(prec%precv(1)%parms%sweeps_pre,prec%precv(1)%parms%sweeps_post),&
& work_,info)
& nswps,work_,info)
end if
else
@@ -454,7 +461,7 @@ subroutine mld_dprecaply1_vect(prec,x,desc_data,info,trans,work)
type(psb_d_vect_type) :: ww
real(psb_dpk_), pointer :: work_(:)
integer(psb_ipk_) :: ictxt,np,me
integer(psb_ipk_) :: err_act,iwsz
integer(psb_ipk_) :: err_act,iwsz, k, nswps
character(len=20) :: name
name='mld_dprecaply'
@@ -506,6 +513,7 @@ subroutine mld_dprecaply1_vect(prec,x,desc_data,info,trans,work)
!
! Number of levels = 1: apply the base preconditioner
!
nswps = max(prec%precv(1)%parms%sweeps_pre,prec%precv(1)%parms%sweeps_post)
if (allocated(prec%precv(1)%sm2a)) then
!
! This is a kludge for handling the symmetrized GS case.
@@ -513,19 +521,19 @@ subroutine mld_dprecaply1_vect(prec,x,desc_data,info,trans,work)
!
select case(trans_)
case ('N')
call prec%precv(1)%sm%apply(done,x,dzero,ww,desc_data,trans_,&
& max(prec%precv(1)%parms%sweeps_pre,prec%precv(1)%parms%sweeps_post),&
& work_,info)
call prec%precv(1)%sm2a%apply(done,ww,dzero,x,desc_data,trans_,&
& max(prec%precv(1)%parms%sweeps_pre,prec%precv(1)%parms%sweeps_post),&
& work_,info)
do k=1, nswps
call prec%precv(1)%sm%apply(done,x,dzero,ww,desc_data,trans_,&
& ione, work_,info)
call prec%precv(1)%sm2a%apply(done,ww,dzero,x,desc_data,trans_,&
& ione, work_,info)
end do
case('T','C')
call prec%precv(1)%sm2a%apply(done,x,dzero,ww,desc_data,trans_,&
& max(prec%precv(1)%parms%sweeps_pre,prec%precv(1)%parms%sweeps_post),&
& work_,info)
call prec%precv(1)%sm%apply(done,ww,dzero,x,desc_data,trans_,&
& max(prec%precv(1)%parms%sweeps_pre,prec%precv(1)%parms%sweeps_post),&
& work_,info)
do k=1, nswps
call prec%precv(1)%sm2a%apply(done,x,dzero,ww,desc_data,trans_,&
& ione, work_,info)
call prec%precv(1)%sm%apply(done,ww,dzero,x,desc_data,trans_,&
& ione, work_,info)
end do
case default
info = psb_err_from_subroutine_
call psb_errpush(info,name,a_err='Invalid trans')
@@ -534,8 +542,7 @@ subroutine mld_dprecaply1_vect(prec,x,desc_data,info,trans,work)
else
call prec%precv(1)%sm%apply(done,x,dzero,ww,desc_data,trans_,&
& max(prec%precv(1)%parms%sweeps_pre,prec%precv(1)%parms%sweeps_post),&
& work_,info)
& nswps, work_,info)
if (info == 0) call psb_geaxpby(done,ww,dzero,x,desc_data,info)
end if
else
mlprec/impl/mld_sfile_prec_descr.f90
+193
View File
@@ -0,0 +1,193 @@
!
!
! MLD2P4 version 2.1
! MultiLevel Domain Decomposition Parallel Preconditioners Package
! based on PSBLAS (Parallel Sparse BLAS version 3.5)
!
! (C) Copyright 2008, 2010, 2012, 2015, 2017
!
! Salvatore Filippone Cranfield University, UK
! Pasqua D'Ambra IAC-CNR, Naples, IT
! Daniela di Serafino University of Campania "L. Vanvitelli", Caserta, IT
!
! 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.
!
!
! File: mld_dfile_prec_descr.f90
!
!
! Subroutine: mld_file_prec_descr
! Version: real
!
! This routine prints a description of the preconditioner to the standard
! output or to a file. It must be called after the preconditioner has been
! built by mld_precbld.
!
! Arguments:
! p - type(mld_Tprec_type), input.
! The preconditioner data structure to be printed out.
! info - integer, output.
! error code.
! iout - integer, input, optional.
! The id of the file where the preconditioner description
! will be printed. If iout is not present, then the standard
! output is condidered.
! root - integer, input, optional.
! The id of the process printing the message; -1 acts as a wildcard.
! Default is psb_root_
!
subroutine mld_sfile_prec_descr(prec,iout,root)
use psb_base_mod
use mld_s_prec_mod, mld_protect_name => mld_sfile_prec_descr
use mld_s_inner_mod
use mld_s_gs_solver
implicit none
! Arguments
class(mld_sprec_type), intent(in) :: prec
integer(psb_ipk_), intent(in), optional :: iout
integer(psb_ipk_), intent(in), optional :: root
! Local variables
integer(psb_ipk_) :: ilev, nlev, ilmin, info, nswps
integer(psb_ipk_) :: ictxt, me, np
logical :: is_symgs
character(len=20), parameter :: name='mld_file_prec_descr'
integer(psb_ipk_) :: iout_
integer(psb_ipk_) :: root_
info = psb_success_
if (present(iout)) then
iout_ = iout
else
iout_ = psb_out_unit
end if
if (iout_ < 0) iout_ = psb_out_unit
ictxt = prec%ictxt
if (allocated(prec%precv)) then
call psb_info(ictxt,me,np)
if (present(root)) then
root_ = root
else
root_ = psb_root_
end if
if (root_ == -1) root_ = me
!
! The preconditioner description is printed by processor psb_root_.
! This agrees with the fact that all the parameters defining the
! preconditioner have the same values on all the procs (this is
! ensured by mld_precbld).
!
if (me == root_) then
nlev = size(prec%precv)
do ilev = 1, nlev
if (.not.allocated(prec%precv(ilev)%sm)) then
info = 3111
write(iout_,*) ' ',name,&
& ': error: inconsistent MLPREC part, should call MLD_PRECINIT'
return
endif
end do
write(iout_,*)
write(iout_,'(a)') 'Preconditioner description'
if (nlev == 1) then
!
! Here we have a gigantic kludge just to handle Symmetrized Gauss-Seidel.
! Will need rethinking...
!
if (allocated(prec%precv(1)%sm2a)) then
is_symgs = .false.
select type(sv2 => prec%precv(1)%sm2a%sv)
class is (mld_s_bwgs_solver_type)
select type(sv1 => prec%precv(1)%sm%sv)
class is (mld_s_gs_solver_type)
is_symgs = .true.
end select
end select
if (is_symgs) then
write(iout_,*) ' Forward-Backward (symmetrized) Hybrid Gauss-Seidel'
else
call prec%precv(1)%sm%descr(info,iout=iout_)
call prec%precv(1)%sm2a%descr(info,iout=iout_)
end if
else
call prec%precv(1)%sm%descr(info,iout=iout_)
nswps = max(prec%precv(1)%parms%sweeps_pre,prec%precv(1)%parms%sweeps_post)
end if
nswps = max(prec%precv(1)%parms%sweeps_pre,prec%precv(1)%parms%sweeps_post)
if (nswps > 1) write(iout_,*) ' Number of sweeps : ',nswps
write(iout_,*)
else if (nlev > 1) then
!
! Print description of base preconditioner
!
write(iout_,*) 'Multilevel Preconditioner'
write(iout_,*) 'Outer sweeps:',prec%outer_sweeps
write(iout_,*)
write(iout_,*) 'Smoother: '
call prec%precv(1)%sm%descr(info,iout=iout_)
if (allocated(prec%precv(1)%sm2a)) then
write(iout_,*) 'Post smoother:'
call prec%precv(1)%sm2a%descr(info,iout=iout_)
end if
!
! Print multilevel details
!
write(iout_,*)
write(iout_,*) 'Multilevel hierarchy: '
write(iout_,*) ' Number of levels : ',nlev
write(iout_,*) ' Operator complexity: ',prec%get_complexity()
ilmin = 2
if (nlev == 2) ilmin=1
do ilev=ilmin,nlev
call prec%precv(ilev)%descr(ilev,nlev,ilmin,info,iout=iout_)
end do
write(iout_,*)
else
write(iout_,*) trim(name), &
& ': invalid preconditioner array size ?',nlev
info = -2
return
end if
end if
else
write(iout_,*) trim(name), &
& ': Error: no base preconditioner available, something is wrong!'
info = -2
return
endif
end subroutine mld_sfile_prec_descr
mlprec/impl/mld_sprecaply.f90
+66 -59
View File
@@ -89,10 +89,10 @@ subroutine mld_sprecaply(prec,x,y,desc_data,info,trans,work)
! Local variables
character :: trans_
real(psb_spk_), pointer :: work_(:)
real(psb_spk_), allocatable :: ww(:)
real(psb_spk_), allocatable :: w1(:), w2(:)
integer(psb_ipk_) :: ictxt,np,me
integer(psb_ipk_) :: err_act,iwsz
integer(psb_ipk_) :: err_act,iwsz, k, nswps
character(len=20) :: name
name='mld_sprecaply'
@@ -143,42 +143,44 @@ subroutine mld_sprecaply(prec,x,y,desc_data,info,trans,work)
!
! Number of levels = 1: apply the base preconditioner
!
!
! Number of levels = 1: apply the base preconditioner
!
nswps = max(prec%precv(1)%parms%sweeps_pre,prec%precv(1)%parms%sweeps_post)
if (allocated(prec%precv(1)%sm2a)) then
!
! This is a kludge for handling the symmetrized GS case.
! Will need some rethinking.
!
allocate(ww(size(x)))
call psb_geasb(w1,desc_data,info,scratch=.true.)
call psb_geasb(w2,desc_data,info,scratch=.true.)
call psb_geaxpby(sone,x,szero,w1,desc_data,info)
select case(trans_)
case ('N')
call prec%precv(1)%sm%apply(sone,x,szero,ww,desc_data,trans_,&
& max(prec%precv(1)%parms%sweeps_pre,prec%precv(1)%parms%sweeps_post),&
& work_,info)
call prec%precv(1)%sm2a%apply(sone,ww,szero,y,desc_data,trans_,&
& max(prec%precv(1)%parms%sweeps_pre,prec%precv(1)%parms%sweeps_post),&
& work_,info)
do k=1, nswps
call prec%precv(1)%sm%apply(sone,w1,szero,w2,desc_data,trans_,&
& ione, work_,info)
call prec%precv(1)%sm2a%apply(sone,w2,szero,w1,desc_data,trans_,&
& ione, work_,info)
end do
case('T','C')
call prec%precv(1)%sm2a%apply(sone,x,szero,ww,desc_data,trans_,&
& max(prec%precv(1)%parms%sweeps_pre,prec%precv(1)%parms%sweeps_post),&
& work_,info)
call prec%precv(1)%sm%apply(sone,ww,szero,y,desc_data,trans_,&
& max(prec%precv(1)%parms%sweeps_pre,prec%precv(1)%parms%sweeps_post),&
& work_,info)
do k=1, nswps
call prec%precv(1)%sm2a%apply(sone,w1,szero,w2,desc_data,trans_,&
& ione, work_,info)
call prec%precv(1)%sm%apply(sone,w2,szero,w1,desc_data,trans_,&
& ione, work_,info)
end do
case default
info = psb_err_from_subroutine_
call psb_errpush(info,name,a_err='Invalid trans')
goto 9999
end select
deallocate(ww)
call psb_geaxpby(sone,w1,szero,y,desc_data,info)
call psb_gefree(w1,desc_data,info)
call psb_gefree(w2,desc_data,info)
else
call prec%precv(1)%sm%apply(sone,x,szero,y,desc_data,trans_,&
& max(prec%precv(1)%parms%sweeps_pre,prec%precv(1)%parms%sweeps_post), &
& work_,info)
& nswps, work_,info)
end if
else
info = psb_err_from_subroutine_ai_
@@ -255,7 +257,7 @@ subroutine mld_sprecaply1(prec,x,desc_data,info,trans)
! Local variables
integer(psb_ipk_) :: ictxt,np,me
integer(psb_ipk_) :: err_act
real(psb_spk_), pointer :: WW(:), w1(:)
real(psb_spk_), pointer :: ww(:), w1(:)
character(len=20) :: name
name='mld_sprecaply1'
@@ -282,7 +284,7 @@ subroutine mld_sprecaply1(prec,x,desc_data,info,trans)
end if
x(:) = ww(:)
deallocate(ww,W1,stat=info)
deallocate(ww,w1,stat=info)
if (info /= psb_success_) then
info = psb_err_alloc_dealloc_
call psb_errpush(info,name)
@@ -319,7 +321,7 @@ subroutine mld_sprecaply2_vect(prec,x,y,desc_data,info,trans,work)
character :: trans_
real(psb_spk_), pointer :: work_(:)
integer(psb_ipk_) :: ictxt,np,me
integer(psb_ipk_) :: err_act,iwsz
integer(psb_ipk_) :: err_act,iwsz, k, nswps
character(len=20) :: name
name='mld_sprecaply'
@@ -370,42 +372,47 @@ subroutine mld_sprecaply2_vect(prec,x,y,desc_data,info,trans,work)
!
! Number of levels = 1: apply the base preconditioner
!
nswps = max(prec%precv(1)%parms%sweeps_pre,prec%precv(1)%parms%sweeps_post)
if (allocated(prec%precv(1)%sm2a)) then
!
! This is a kludge for handling the symmetrized GS case.
! Will need some rethinking.
!
twoside: block
type(psb_s_vect_type) :: ww
call psb_geasb(ww,desc_data,info,mold=x%v,scratch=.true.)
type(psb_s_vect_type) :: w1,w2
call psb_geasb(w1,desc_data,info,mold=x%v,scratch=.true.)
call psb_geasb(w2,desc_data,info,mold=x%v,scratch=.true.)
call psb_geaxpby(sone,x,szero,w1,desc_data,info)
select case(trans_)
case ('N')
call prec%precv(1)%sm%apply(sone,x,szero,ww,desc_data,trans_,&
& max(prec%precv(1)%parms%sweeps_pre,prec%precv(1)%parms%sweeps_post),&
& work_,info)
call prec%precv(1)%sm2a%apply(sone,ww,szero,y,desc_data,trans_,&
& max(prec%precv(1)%parms%sweeps_pre,prec%precv(1)%parms%sweeps_post),&
& work_,info)
do k=1, nswps
call prec%precv(1)%sm%apply(sone,w1,szero,w2,desc_data,trans_,&
& ione, work_,info)
call prec%precv(1)%sm2a%apply(sone,w2,szero,w1,desc_data,trans_,&
& ione, work_,info)
end do
case('T','C')
call prec%precv(1)%sm2a%apply(sone,x,szero,ww,desc_data,trans_,&
& max(prec%precv(1)%parms%sweeps_pre,prec%precv(1)%parms%sweeps_post),&
& work_,info)
call prec%precv(1)%sm%apply(sone,ww,szero,y,desc_data,trans_,&
& max(prec%precv(1)%parms%sweeps_pre,prec%precv(1)%parms%sweeps_post),&
& work_,info)
do k=1, nswps
call prec%precv(1)%sm2a%apply(sone,w1,szero,w2,desc_data,trans_,&
& ione, work_,info)
call prec%precv(1)%sm%apply(sone,w2,szero,w1,desc_data,trans_,&
& ione, work_,info)
end do
case default
info = psb_err_from_subroutine_
call psb_errpush(info,name,a_err='Invalid trans')
goto 9999
end select
call psb_gefree(ww,desc_data,info)
call psb_geaxpby(sone,w1,szero,y,desc_data,info)
call psb_gefree(w1,desc_data,info)
call psb_gefree(w2,desc_data,info)
end block twoside
else
call prec%precv(1)%sm%apply(sone,x,szero,y,desc_data,trans_,&
& max(prec%precv(1)%parms%sweeps_pre,prec%precv(1)%parms%sweeps_post),&
& work_,info)
& nswps,work_,info)
end if
else
@@ -454,7 +461,7 @@ subroutine mld_sprecaply1_vect(prec,x,desc_data,info,trans,work)
type(psb_s_vect_type) :: ww
real(psb_spk_), pointer :: work_(:)
integer(psb_ipk_) :: ictxt,np,me
integer(psb_ipk_) :: err_act,iwsz
integer(psb_ipk_) :: err_act,iwsz, k, nswps
character(len=20) :: name
name='mld_sprecaply'
@@ -506,6 +513,7 @@ subroutine mld_sprecaply1_vect(prec,x,desc_data,info,trans,work)
!
! Number of levels = 1: apply the base preconditioner
!
nswps = max(prec%precv(1)%parms%sweeps_pre,prec%precv(1)%parms%sweeps_post)
if (allocated(prec%precv(1)%sm2a)) then
!
! This is a kludge for handling the symmetrized GS case.
@@ -513,19 +521,19 @@ subroutine mld_sprecaply1_vect(prec,x,desc_data,info,trans,work)
!
select case(trans_)
case ('N')
call prec%precv(1)%sm%apply(sone,x,szero,ww,desc_data,trans_,&
& max(prec%precv(1)%parms%sweeps_pre,prec%precv(1)%parms%sweeps_post),&
& work_,info)
call prec%precv(1)%sm2a%apply(sone,ww,szero,x,desc_data,trans_,&
& max(prec%precv(1)%parms%sweeps_pre,prec%precv(1)%parms%sweeps_post),&
& work_,info)
do k=1, nswps
call prec%precv(1)%sm%apply(sone,x,szero,ww,desc_data,trans_,&
& ione, work_,info)
call prec%precv(1)%sm2a%apply(sone,ww,szero,x,desc_data,trans_,&
& ione, work_,info)
end do
case('T','C')
call prec%precv(1)%sm2a%apply(sone,x,szero,ww,desc_data,trans_,&
& max(prec%precv(1)%parms%sweeps_pre,prec%precv(1)%parms%sweeps_post),&
& work_,info)
call prec%precv(1)%sm%apply(sone,ww,szero,x,desc_data,trans_,&
& max(prec%precv(1)%parms%sweeps_pre,prec%precv(1)%parms%sweeps_post),&
& work_,info)
do k=1, nswps
call prec%precv(1)%sm2a%apply(sone,x,szero,ww,desc_data,trans_,&
& ione, work_,info)
call prec%precv(1)%sm%apply(sone,ww,szero,x,desc_data,trans_,&
& ione, work_,info)
end do
case default
info = psb_err_from_subroutine_
call psb_errpush(info,name,a_err='Invalid trans')
@@ -534,8 +542,7 @@ subroutine mld_sprecaply1_vect(prec,x,desc_data,info,trans,work)
else
call prec%precv(1)%sm%apply(sone,x,szero,ww,desc_data,trans_,&
& max(prec%precv(1)%parms%sweeps_pre,prec%precv(1)%parms%sweeps_post),&
& work_,info)
& nswps, work_,info)
if (info == 0) call psb_geaxpby(sone,ww,szero,x,desc_data,info)
end if
else
mlprec/impl/mld_zfile_prec_descr.f90
+193
View File
@@ -0,0 +1,193 @@
!
!
! MLD2P4 version 2.1
! MultiLevel Domain Decomposition Parallel Preconditioners Package
! based on PSBLAS (Parallel Sparse BLAS version 3.5)
!
! (C) Copyright 2008, 2010, 2012, 2015, 2017
!
! Salvatore Filippone Cranfield University, UK
! Pasqua D'Ambra IAC-CNR, Naples, IT
! Daniela di Serafino University of Campania "L. Vanvitelli", Caserta, IT
!
! 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.
!
!
! File: mld_dfile_prec_descr.f90
!
!
! Subroutine: mld_file_prec_descr
! Version: complex
!
! This routine prints a description of the preconditioner to the standard
! output or to a file. It must be called after the preconditioner has been
! built by mld_precbld.
!
! Arguments:
! p - type(mld_Tprec_type), input.
! The preconditioner data structure to be printed out.
! info - integer, output.
! error code.
! iout - integer, input, optional.
! The id of the file where the preconditioner description
! will be printed. If iout is not present, then the standard
! output is condidered.
! root - integer, input, optional.
! The id of the process printing the message; -1 acts as a wildcard.
! Default is psb_root_
!
subroutine mld_zfile_prec_descr(prec,iout,root)
use psb_base_mod
use mld_z_prec_mod, mld_protect_name => mld_zfile_prec_descr
use mld_z_inner_mod
use mld_z_gs_solver
implicit none
! Arguments
class(mld_zprec_type), intent(in) :: prec
integer(psb_ipk_), intent(in), optional :: iout
integer(psb_ipk_), intent(in), optional :: root
! Local variables
integer(psb_ipk_) :: ilev, nlev, ilmin, info, nswps
integer(psb_ipk_) :: ictxt, me, np
logical :: is_symgs
character(len=20), parameter :: name='mld_file_prec_descr'
integer(psb_ipk_) :: iout_
integer(psb_ipk_) :: root_
info = psb_success_
if (present(iout)) then
iout_ = iout
else
iout_ = psb_out_unit
end if
if (iout_ < 0) iout_ = psb_out_unit
ictxt = prec%ictxt
if (allocated(prec%precv)) then
call psb_info(ictxt,me,np)
if (present(root)) then
root_ = root
else
root_ = psb_root_
end if
if (root_ == -1) root_ = me
!
! The preconditioner description is printed by processor psb_root_.
! This agrees with the fact that all the parameters defining the
! preconditioner have the same values on all the procs (this is
! ensured by mld_precbld).
!
if (me == root_) then
nlev = size(prec%precv)
do ilev = 1, nlev
if (.not.allocated(prec%precv(ilev)%sm)) then
info = 3111
write(iout_,*) ' ',name,&
& ': error: inconsistent MLPREC part, should call MLD_PRECINIT'
return
endif
end do
write(iout_,*)
write(iout_,'(a)') 'Preconditioner description'
if (nlev == 1) then
!
! Here we have a gigantic kludge just to handle Symmetrized Gauss-Seidel.
! Will need rethinking...
!
if (allocated(prec%precv(1)%sm2a)) then
is_symgs = .false.
select type(sv2 => prec%precv(1)%sm2a%sv)
class is (mld_z_bwgs_solver_type)
select type(sv1 => prec%precv(1)%sm%sv)
class is (mld_z_gs_solver_type)
is_symgs = .true.
end select
end select
if (is_symgs) then
write(iout_,*) ' Forward-Backward (symmetrized) Hybrid Gauss-Seidel'
else
call prec%precv(1)%sm%descr(info,iout=iout_)
call prec%precv(1)%sm2a%descr(info,iout=iout_)
end if
else
call prec%precv(1)%sm%descr(info,iout=iout_)
nswps = max(prec%precv(1)%parms%sweeps_pre,prec%precv(1)%parms%sweeps_post)
end if
nswps = max(prec%precv(1)%parms%sweeps_pre,prec%precv(1)%parms%sweeps_post)
if (nswps > 1) write(iout_,*) ' Number of sweeps : ',nswps
write(iout_,*)
else if (nlev > 1) then
!
! Print description of base preconditioner
!
write(iout_,*) 'Multilevel Preconditioner'
write(iout_,*) 'Outer sweeps:',prec%outer_sweeps
write(iout_,*)
write(iout_,*) 'Smoother: '
call prec%precv(1)%sm%descr(info,iout=iout_)
if (allocated(prec%precv(1)%sm2a)) then
write(iout_,*) 'Post smoother:'
call prec%precv(1)%sm2a%descr(info,iout=iout_)
end if
!
! Print multilevel details
!
write(iout_,*)
write(iout_,*) 'Multilevel hierarchy: '
write(iout_,*) ' Number of levels : ',nlev
write(iout_,*) ' Operator complexity: ',prec%get_complexity()
ilmin = 2
if (nlev == 2) ilmin=1
do ilev=ilmin,nlev
call prec%precv(ilev)%descr(ilev,nlev,ilmin,info,iout=iout_)
end do
write(iout_,*)
else
write(iout_,*) trim(name), &
& ': invalid preconditioner array size ?',nlev
info = -2
return
end if
end if
else
write(iout_,*) trim(name), &
& ': Error: no base preconditioner available, something is wrong!'
info = -2
return
endif
end subroutine mld_zfile_prec_descr
mlprec/impl/mld_zprecaply.f90
+66 -59
View File
@@ -89,10 +89,10 @@ subroutine mld_zprecaply(prec,x,y,desc_data,info,trans,work)
! Local variables
character :: trans_
complex(psb_dpk_), pointer :: work_(:)
complex(psb_dpk_), allocatable :: ww(:)
complex(psb_dpk_), allocatable :: w1(:), w2(:)
integer(psb_ipk_) :: ictxt,np,me
integer(psb_ipk_) :: err_act,iwsz
integer(psb_ipk_) :: err_act,iwsz, k, nswps
character(len=20) :: name
name='mld_zprecaply'
@@ -143,42 +143,44 @@ subroutine mld_zprecaply(prec,x,y,desc_data,info,trans,work)
!
! Number of levels = 1: apply the base preconditioner
!
!
! Number of levels = 1: apply the base preconditioner
!
nswps = max(prec%precv(1)%parms%sweeps_pre,prec%precv(1)%parms%sweeps_post)
if (allocated(prec%precv(1)%sm2a)) then
!
! This is a kludge for handling the symmetrized GS case.
! Will need some rethinking.
!
allocate(ww(size(x)))
call psb_geasb(w1,desc_data,info,scratch=.true.)
call psb_geasb(w2,desc_data,info,scratch=.true.)
call psb_geaxpby(zone,x,zzero,w1,desc_data,info)
select case(trans_)
case ('N')
call prec%precv(1)%sm%apply(zone,x,zzero,ww,desc_data,trans_,&
& max(prec%precv(1)%parms%sweeps_pre,prec%precv(1)%parms%sweeps_post),&
& work_,info)
call prec%precv(1)%sm2a%apply(zone,ww,zzero,y,desc_data,trans_,&
& max(prec%precv(1)%parms%sweeps_pre,prec%precv(1)%parms%sweeps_post),&
& work_,info)
do k=1, nswps
call prec%precv(1)%sm%apply(zone,w1,zzero,w2,desc_data,trans_,&
& ione, work_,info)
call prec%precv(1)%sm2a%apply(zone,w2,zzero,w1,desc_data,trans_,&
& ione, work_,info)
end do
case('T','C')
call prec%precv(1)%sm2a%apply(zone,x,zzero,ww,desc_data,trans_,&
& max(prec%precv(1)%parms%sweeps_pre,prec%precv(1)%parms%sweeps_post),&
& work_,info)
call prec%precv(1)%sm%apply(zone,ww,zzero,y,desc_data,trans_,&
& max(prec%precv(1)%parms%sweeps_pre,prec%precv(1)%parms%sweeps_post),&
& work_,info)
do k=1, nswps
call prec%precv(1)%sm2a%apply(zone,w1,zzero,w2,desc_data,trans_,&
& ione, work_,info)
call prec%precv(1)%sm%apply(zone,w2,zzero,w1,desc_data,trans_,&
& ione, work_,info)
end do
case default
info = psb_err_from_subroutine_
call psb_errpush(info,name,a_err='Invalid trans')
goto 9999
end select
deallocate(ww)
call psb_geaxpby(zone,w1,zzero,y,desc_data,info)
call psb_gefree(w1,desc_data,info)
call psb_gefree(w2,desc_data,info)
else
call prec%precv(1)%sm%apply(zone,x,zzero,y,desc_data,trans_,&
& max(prec%precv(1)%parms%sweeps_pre,prec%precv(1)%parms%sweeps_post), &
& work_,info)
& nswps, work_,info)
end if
else
info = psb_err_from_subroutine_ai_
@@ -255,7 +257,7 @@ subroutine mld_zprecaply1(prec,x,desc_data,info,trans)
! Local variables
integer(psb_ipk_) :: ictxt,np,me
integer(psb_ipk_) :: err_act
complex(psb_dpk_), pointer :: WW(:), w1(:)
complex(psb_dpk_), pointer :: ww(:), w1(:)
character(len=20) :: name
name='mld_zprecaply1'
@@ -282,7 +284,7 @@ subroutine mld_zprecaply1(prec,x,desc_data,info,trans)
end if
x(:) = ww(:)
deallocate(ww,W1,stat=info)
deallocate(ww,w1,stat=info)
if (info /= psb_success_) then
info = psb_err_alloc_dealloc_
call psb_errpush(info,name)
@@ -319,7 +321,7 @@ subroutine mld_zprecaply2_vect(prec,x,y,desc_data,info,trans,work)
character :: trans_
complex(psb_dpk_), pointer :: work_(:)
integer(psb_ipk_) :: ictxt,np,me
integer(psb_ipk_) :: err_act,iwsz
integer(psb_ipk_) :: err_act,iwsz, k, nswps
character(len=20) :: name
name='mld_zprecaply'
@@ -370,42 +372,47 @@ subroutine mld_zprecaply2_vect(prec,x,y,desc_data,info,trans,work)
!
! Number of levels = 1: apply the base preconditioner
!
nswps = max(prec%precv(1)%parms%sweeps_pre,prec%precv(1)%parms%sweeps_post)
if (allocated(prec%precv(1)%sm2a)) then
!
! This is a kludge for handling the symmetrized GS case.
! Will need some rethinking.
!
twoside: block
type(psb_z_vect_type) :: ww
call psb_geasb(ww,desc_data,info,mold=x%v,scratch=.true.)
type(psb_z_vect_type) :: w1,w2
call psb_geasb(w1,desc_data,info,mold=x%v,scratch=.true.)
call psb_geasb(w2,desc_data,info,mold=x%v,scratch=.true.)
call psb_geaxpby(zone,x,zzero,w1,desc_data,info)
select case(trans_)
case ('N')
call prec%precv(1)%sm%apply(zone,x,zzero,ww,desc_data,trans_,&
& max(prec%precv(1)%parms%sweeps_pre,prec%precv(1)%parms%sweeps_post),&
& work_,info)
call prec%precv(1)%sm2a%apply(zone,ww,zzero,y,desc_data,trans_,&
& max(prec%precv(1)%parms%sweeps_pre,prec%precv(1)%parms%sweeps_post),&
& work_,info)
do k=1, nswps
call prec%precv(1)%sm%apply(zone,w1,zzero,w2,desc_data,trans_,&
& ione, work_,info)
call prec%precv(1)%sm2a%apply(zone,w2,zzero,w1,desc_data,trans_,&
& ione, work_,info)
end do
case('T','C')
call prec%precv(1)%sm2a%apply(zone,x,zzero,ww,desc_data,trans_,&
& max(prec%precv(1)%parms%sweeps_pre,prec%precv(1)%parms%sweeps_post),&
& work_,info)
call prec%precv(1)%sm%apply(zone,ww,zzero,y,desc_data,trans_,&
& max(prec%precv(1)%parms%sweeps_pre,prec%precv(1)%parms%sweeps_post),&
& work_,info)
do k=1, nswps
call prec%precv(1)%sm2a%apply(zone,w1,zzero,w2,desc_data,trans_,&
& ione, work_,info)
call prec%precv(1)%sm%apply(zone,w2,zzero,w1,desc_data,trans_,&
& ione, work_,info)
end do
case default
info = psb_err_from_subroutine_
call psb_errpush(info,name,a_err='Invalid trans')
goto 9999
end select
call psb_gefree(ww,desc_data,info)
call psb_geaxpby(zone,w1,zzero,y,desc_data,info)
call psb_gefree(w1,desc_data,info)
call psb_gefree(w2,desc_data,info)
end block twoside
else
call prec%precv(1)%sm%apply(zone,x,zzero,y,desc_data,trans_,&
& max(prec%precv(1)%parms%sweeps_pre,prec%precv(1)%parms%sweeps_post),&
& work_,info)
& nswps,work_,info)
end if
else
@@ -454,7 +461,7 @@ subroutine mld_zprecaply1_vect(prec,x,desc_data,info,trans,work)
type(psb_z_vect_type) :: ww
complex(psb_dpk_), pointer :: work_(:)
integer(psb_ipk_) :: ictxt,np,me
integer(psb_ipk_) :: err_act,iwsz
integer(psb_ipk_) :: err_act,iwsz, k, nswps
character(len=20) :: name
name='mld_zprecaply'
@@ -506,6 +513,7 @@ subroutine mld_zprecaply1_vect(prec,x,desc_data,info,trans,work)
!
! Number of levels = 1: apply the base preconditioner
!
nswps = max(prec%precv(1)%parms%sweeps_pre,prec%precv(1)%parms%sweeps_post)
if (allocated(prec%precv(1)%sm2a)) then
!
! This is a kludge for handling the symmetrized GS case.
@@ -513,19 +521,19 @@ subroutine mld_zprecaply1_vect(prec,x,desc_data,info,trans,work)
!
select case(trans_)
case ('N')
call prec%precv(1)%sm%apply(zone,x,zzero,ww,desc_data,trans_,&
& max(prec%precv(1)%parms%sweeps_pre,prec%precv(1)%parms%sweeps_post),&
& work_,info)
call prec%precv(1)%sm2a%apply(zone,ww,zzero,x,desc_data,trans_,&
& max(prec%precv(1)%parms%sweeps_pre,prec%precv(1)%parms%sweeps_post),&
& work_,info)
do k=1, nswps
call prec%precv(1)%sm%apply(zone,x,zzero,ww,desc_data,trans_,&
& ione, work_,info)
call prec%precv(1)%sm2a%apply(zone,ww,zzero,x,desc_data,trans_,&
& ione, work_,info)
end do
case('T','C')
call prec%precv(1)%sm2a%apply(zone,x,zzero,ww,desc_data,trans_,&
& max(prec%precv(1)%parms%sweeps_pre,prec%precv(1)%parms%sweeps_post),&
& work_,info)
call prec%precv(1)%sm%apply(zone,ww,zzero,x,desc_data,trans_,&
& max(prec%precv(1)%parms%sweeps_pre,prec%precv(1)%parms%sweeps_post),&
& work_,info)
do k=1, nswps
call prec%precv(1)%sm2a%apply(zone,x,zzero,ww,desc_data,trans_,&
& ione, work_,info)
call prec%precv(1)%sm%apply(zone,ww,zzero,x,desc_data,trans_,&
& ione, work_,info)
end do
case default
info = psb_err_from_subroutine_
call psb_errpush(info,name,a_err='Invalid trans')
@@ -534,8 +542,7 @@ subroutine mld_zprecaply1_vect(prec,x,desc_data,info,trans,work)
else
call prec%precv(1)%sm%apply(zone,x,zzero,ww,desc_data,trans_,&
& max(prec%precv(1)%parms%sweeps_pre,prec%precv(1)%parms%sweeps_post),&
& work_,info)
& nswps, work_,info)
if (info == 0) call psb_geaxpby(zone,ww,zzero,x,desc_data,info)
end if
else
mlprec/impl/smoother/mld_c_base_smoother_descr.f90
+1 -1
View File
@@ -70,7 +70,7 @@ subroutine mld_c_base_smoother_descr(sm,info,iout,coarse)
end if
if (.not.coarse_) &
& write(iout_,*) 'Base smoother with local solver'
& write(iout_,*) 'Decoupled preconditioner/smoother with local solver'
if (allocated(sm%sv)) then
call sm%sv%descr(info,iout,coarse)
if (info /= psb_success_) then
mlprec/impl/smoother/mld_c_jac_smoother_descr.f90
+5 -9
View File
@@ -74,23 +74,19 @@ subroutine mld_c_jac_smoother_descr(sm,info,iout,coarse)
if (allocated(sm%sv)) then
select type(smv=>sm%sv)
class is (mld_c_diag_solver_type)
write(iout_,*) ' Point Jacobi smoother '
write(iout_,*) ' Point Jacobi '
class is (mld_c_bwgs_solver_type)
write(iout_,*) ' Hybrid Backward Gauss-Seidel smoother '
!!$ write(iout_,*) ' Local Gauss-Seidel solver details:'
!!$ call smv%descr(info,iout_,coarse=coarse)
write(iout_,*) ' Hybrid Backward Gauss-Seidel '
class is (mld_c_gs_solver_type)
write(iout_,*) ' Hybrid Forward Gauss-Seidel smoother '
!!$ write(iout_,*) ' Local Gauss-Seidel solver details:'
!!$ call smv%descr(info,iout_,coarse=coarse)
write(iout_,*) ' Hybrid Forward Gauss-Seidel '
class default
write(iout_,*) ' Block Jacobi smoother '
write(iout_,*) ' Block Jacobi '
write(iout_,*) ' Local solver details:'
call smv%descr(info,iout_,coarse=coarse)
end select
else
write(iout_,*) ' Block Jacobi smoother '
write(iout_,*) ' Block Jacobi '
end if
else
if (allocated(sm%sv)) then
mlprec/impl/smoother/mld_d_base_smoother_descr.f90
+1 -1
View File
@@ -70,7 +70,7 @@ subroutine mld_d_base_smoother_descr(sm,info,iout,coarse)
end if
if (.not.coarse_) &
& write(iout_,*) 'Base smoother with local solver'
& write(iout_,*) 'Decoupled preconditioner/smoother with local solver'
if (allocated(sm%sv)) then
call sm%sv%descr(info,iout,coarse)
if (info /= psb_success_) then
mlprec/impl/smoother/mld_d_jac_smoother_descr.f90
+5 -9
View File
@@ -74,23 +74,19 @@ subroutine mld_d_jac_smoother_descr(sm,info,iout,coarse)
if (allocated(sm%sv)) then
select type(smv=>sm%sv)
class is (mld_d_diag_solver_type)
write(iout_,*) ' Point Jacobi smoother '
write(iout_,*) ' Point Jacobi '
class is (mld_d_bwgs_solver_type)
write(iout_,*) ' Hybrid Backward Gauss-Seidel smoother '
!!$ write(iout_,*) ' Local Gauss-Seidel solver details:'
!!$ call smv%descr(info,iout_,coarse=coarse)
write(iout_,*) ' Hybrid Backward Gauss-Seidel '
class is (mld_d_gs_solver_type)
write(iout_,*) ' Hybrid Forward Gauss-Seidel smoother '
!!$ write(iout_,*) ' Local Gauss-Seidel solver details:'
!!$ call smv%descr(info,iout_,coarse=coarse)
write(iout_,*) ' Hybrid Forward Gauss-Seidel '
class default
write(iout_,*) ' Block Jacobi smoother '
write(iout_,*) ' Block Jacobi '
write(iout_,*) ' Local solver details:'
call smv%descr(info,iout_,coarse=coarse)
end select
else
write(iout_,*) ' Block Jacobi smoother '
write(iout_,*) ' Block Jacobi '
end if
else
if (allocated(sm%sv)) then
mlprec/impl/smoother/mld_s_base_smoother_descr.f90
+1 -1
View File
@@ -70,7 +70,7 @@ subroutine mld_s_base_smoother_descr(sm,info,iout,coarse)
end if
if (.not.coarse_) &
& write(iout_,*) 'Base smoother with local solver'
& write(iout_,*) 'Decoupled preconditioner/smoother with local solver'
if (allocated(sm%sv)) then
call sm%sv%descr(info,iout,coarse)
if (info /= psb_success_) then
mlprec/impl/smoother/mld_s_jac_smoother_descr.f90
+5 -9
View File
@@ -74,23 +74,19 @@ subroutine mld_s_jac_smoother_descr(sm,info,iout,coarse)
if (allocated(sm%sv)) then
select type(smv=>sm%sv)
class is (mld_s_diag_solver_type)
write(iout_,*) ' Point Jacobi smoother '
write(iout_,*) ' Point Jacobi '
class is (mld_s_bwgs_solver_type)
write(iout_,*) ' Hybrid Backward Gauss-Seidel smoother '
!!$ write(iout_,*) ' Local Gauss-Seidel solver details:'
!!$ call smv%descr(info,iout_,coarse=coarse)
write(iout_,*) ' Hybrid Backward Gauss-Seidel '
class is (mld_s_gs_solver_type)
write(iout_,*) ' Hybrid Forward Gauss-Seidel smoother '
!!$ write(iout_,*) ' Local Gauss-Seidel solver details:'
!!$ call smv%descr(info,iout_,coarse=coarse)
write(iout_,*) ' Hybrid Forward Gauss-Seidel '
class default
write(iout_,*) ' Block Jacobi smoother '
write(iout_,*) ' Block Jacobi '
write(iout_,*) ' Local solver details:'
call smv%descr(info,iout_,coarse=coarse)
end select
else
write(iout_,*) ' Block Jacobi smoother '
write(iout_,*) ' Block Jacobi '
end if
else
if (allocated(sm%sv)) then
mlprec/impl/smoother/mld_z_base_smoother_descr.f90
+1 -1
View File
@@ -70,7 +70,7 @@ subroutine mld_z_base_smoother_descr(sm,info,iout,coarse)
end if
if (.not.coarse_) &
& write(iout_,*) 'Base smoother with local solver'
& write(iout_,*) 'Decoupled preconditioner/smoother with local solver'
if (allocated(sm%sv)) then
call sm%sv%descr(info,iout,coarse)
if (info /= psb_success_) then
mlprec/impl/smoother/mld_z_jac_smoother_descr.f90
+5 -9
View File
@@ -74,23 +74,19 @@ subroutine mld_z_jac_smoother_descr(sm,info,iout,coarse)
if (allocated(sm%sv)) then
select type(smv=>sm%sv)
class is (mld_z_diag_solver_type)
write(iout_,*) ' Point Jacobi smoother '
write(iout_,*) ' Point Jacobi '
class is (mld_z_bwgs_solver_type)
write(iout_,*) ' Hybrid Backward Gauss-Seidel smoother '
!!$ write(iout_,*) ' Local Gauss-Seidel solver details:'
!!$ call smv%descr(info,iout_,coarse=coarse)
write(iout_,*) ' Hybrid Backward Gauss-Seidel '
class is (mld_z_gs_solver_type)
write(iout_,*) ' Hybrid Forward Gauss-Seidel smoother '
!!$ write(iout_,*) ' Local Gauss-Seidel solver details:'
!!$ call smv%descr(info,iout_,coarse=coarse)
write(iout_,*) ' Hybrid Forward Gauss-Seidel '
class default
write(iout_,*) ' Block Jacobi smoother '
write(iout_,*) ' Block Jacobi '
write(iout_,*) ' Local solver details:'
call smv%descr(info,iout_,coarse=coarse)
end select
else
write(iout_,*) ' Block Jacobi smoother '
write(iout_,*) ' Block Jacobi '
end if
else
if (allocated(sm%sv)) then
mlprec/mld_c_as_smoother.f90
+1 -1
View File
@@ -461,7 +461,7 @@ contains
implicit none
character(len=32) :: val
val = "Schwarz smoother"
val = "Additive Schwarz"
end function c_as_smoother_get_fmt
function c_as_smoother_get_id() result(val)
mlprec/mld_c_prec_type.f90
+8 -134
View File
@@ -156,7 +156,14 @@ module mld_c_prec_type
interface mld_precdescr
module procedure mld_cfile_prec_descr
subroutine mld_cfile_prec_descr(prec,iout,root)
import :: mld_cprec_type, psb_ipk_
implicit none
! Arguments
class(mld_cprec_type), intent(in) :: prec
integer(psb_ipk_), intent(in), optional :: iout
integer(psb_ipk_), intent(in), optional :: root
end subroutine mld_cfile_prec_descr
end interface
interface mld_sizeof
@@ -489,139 +496,6 @@ contains
prec%op_complexity = num/den
end subroutine mld_c_cmp_compl
!
! Subroutine: mld_file_prec_descr
! Version: complex
!
! This routine prints a description of the preconditioner to the standard
! output or to a file. It must be called after the preconditioner has been
! built by mld_precbld.
!
! Arguments:
! p - type(mld_Tprec_type), input.
! The preconditioner data structure to be printed out.
! info - integer, output.
! error code.
! iout - integer, input, optional.
! The id of the file where the preconditioner description
! will be printed. If iout is not present, then the standard
! output is condidered.
! root - integer, input, optional.
! The id of the process printing the message; -1 acts as a wildcard.
! Default is psb_root_
!
subroutine mld_cfile_prec_descr(prec,iout,root)
implicit none
! Arguments
class(mld_cprec_type), intent(in) :: prec
integer(psb_ipk_), intent(in), optional :: iout
integer(psb_ipk_), intent(in), optional :: root
! Local variables
integer(psb_ipk_) :: ilev, nlev, ilmin, info
integer(psb_ipk_) :: ictxt, me, np
character(len=20), parameter :: name='mld_file_prec_descr'
integer(psb_ipk_) :: iout_
integer(psb_ipk_) :: root_
info = psb_success_
if (present(iout)) then
iout_ = iout
else
iout_ = psb_out_unit
end if
if (iout_ < 0) iout_ = psb_out_unit
ictxt = prec%ictxt
if (allocated(prec%precv)) then
call psb_info(ictxt,me,np)
if (present(root)) then
root_ = root
else
root_ = psb_root_
end if
if (root_ == -1) root_ = me
!
! The preconditioner description is printed by processor psb_root_.
! This agrees with the fact that all the parameters defining the
! preconditioner have the same values on all the procs (this is
! ensured by mld_precbld).
!
if (me == root_) then
nlev = size(prec%precv)
do ilev = 1, nlev
if (.not.allocated(prec%precv(ilev)%sm)) then
info = 3111
write(iout_,*) ' ',name,&
& ': error: inconsistent MLPREC part, should call MLD_PRECINIT'
return
endif
end do
write(iout_,*)
write(iout_,'(a)') 'Preconditioner description'
if (nlev >= 1) then
!
! Print description of base preconditioner
!
if (nlev > 1) then
write(iout_,*) 'Multilevel Preconditioner'
write(iout_,*) 'Outer sweeps:',prec%outer_sweeps
write(iout_,*)
write(iout_,*) 'Base preconditioner (smoother) details'
endif
call prec%precv(1)%sm%descr(info,iout=iout_)
if (nlev == 1) then
if (prec%precv(1)%parms%sweeps_pre > 1) then
write(iout_,*) ' Number of smoother sweeps_pre : ',&
& prec%precv(1)%parms%sweeps_pre
end if
write(iout_,*)
end if
if (allocated(prec%precv(1)%sm2a)) then
write(iout_,*) 'Post smoother details'
call prec%precv(1)%sm2a%descr(info,iout=iout_)
if (nlev == 1) then
if (prec%precv(1)%parms%sweeps_post > 1) then
write(iout_,*) ' Number of smoother sweeps_post : ',&
& prec%precv(1)%parms%sweeps_post
end if
write(iout_,*)
end if
end if
end if
if (nlev > 1) then
!
! Print multilevel details
!
write(iout_,*)
write(iout_,*) 'Multilevel details'
write(iout_,*) ' Number of levels : ',nlev
write(iout_,*) ' Operator complexity: ',prec%get_complexity()
ilmin = 2
if (nlev == 2) ilmin=1
do ilev=ilmin,nlev
call prec%precv(ilev)%descr(ilev,nlev,ilmin,info,iout=iout_)
end do
write(iout_,*)
end if
end if
else
write(iout_,*) trim(name), &
& ': Error: no base preconditioner available, something is wrong!'
info = -2
return
endif
end subroutine mld_cfile_prec_descr
!
! Subroutines: mld_Tprec_free
! Version: complex
mlprec/mld_d_as_smoother.f90
+1 -1
View File
@@ -461,7 +461,7 @@ contains
implicit none
character(len=32) :: val
val = "Schwarz smoother"
val = "Additive Schwarz"
end function d_as_smoother_get_fmt
function d_as_smoother_get_id() result(val)
mlprec/mld_d_prec_type.f90
+8 -134
View File
@@ -156,7 +156,14 @@ module mld_d_prec_type
interface mld_precdescr
module procedure mld_dfile_prec_descr
subroutine mld_dfile_prec_descr(prec,iout,root)
import :: mld_dprec_type, psb_ipk_
implicit none
! Arguments
class(mld_dprec_type), intent(in) :: prec
integer(psb_ipk_), intent(in), optional :: iout
integer(psb_ipk_), intent(in), optional :: root
end subroutine mld_dfile_prec_descr
end interface
interface mld_sizeof
@@ -489,139 +496,6 @@ contains
prec%op_complexity = num/den
end subroutine mld_d_cmp_compl
!
! Subroutine: mld_file_prec_descr
! Version: real
!
! This routine prints a description of the preconditioner to the standard
! output or to a file. It must be called after the preconditioner has been
! built by mld_precbld.
!
! Arguments:
! p - type(mld_Tprec_type), input.
! The preconditioner data structure to be printed out.
! info - integer, output.
! error code.
! iout - integer, input, optional.
! The id of the file where the preconditioner description
! will be printed. If iout is not present, then the standard
! output is condidered.
! root - integer, input, optional.
! The id of the process printing the message; -1 acts as a wildcard.
! Default is psb_root_
!
subroutine mld_dfile_prec_descr(prec,iout,root)
implicit none
! Arguments
class(mld_dprec_type), intent(in) :: prec
integer(psb_ipk_), intent(in), optional :: iout
integer(psb_ipk_), intent(in), optional :: root
! Local variables
integer(psb_ipk_) :: ilev, nlev, ilmin, info
integer(psb_ipk_) :: ictxt, me, np
character(len=20), parameter :: name='mld_file_prec_descr'
integer(psb_ipk_) :: iout_
integer(psb_ipk_) :: root_
info = psb_success_
if (present(iout)) then
iout_ = iout
else
iout_ = psb_out_unit
end if
if (iout_ < 0) iout_ = psb_out_unit
ictxt = prec%ictxt
if (allocated(prec%precv)) then
call psb_info(ictxt,me,np)
if (present(root)) then
root_ = root
else
root_ = psb_root_
end if
if (root_ == -1) root_ = me
!
! The preconditioner description is printed by processor psb_root_.
! This agrees with the fact that all the parameters defining the
! preconditioner have the same values on all the procs (this is
! ensured by mld_precbld).
!
if (me == root_) then
nlev = size(prec%precv)
do ilev = 1, nlev
if (.not.allocated(prec%precv(ilev)%sm)) then
info = 3111
write(iout_,*) ' ',name,&
& ': error: inconsistent MLPREC part, should call MLD_PRECINIT'
return
endif
end do
write(iout_,*)
write(iout_,'(a)') 'Preconditioner description'
if (nlev >= 1) then
!
! Print description of base preconditioner
!
if (nlev > 1) then
write(iout_,*) 'Multilevel Preconditioner'
write(iout_,*) 'Outer sweeps:',prec%outer_sweeps
write(iout_,*)
write(iout_,*) 'Base preconditioner (smoother) details'
endif
call prec%precv(1)%sm%descr(info,iout=iout_)
if (nlev == 1) then
if (prec%precv(1)%parms%sweeps_pre > 1) then
write(iout_,*) ' Number of smoother sweeps_pre : ',&
& prec%precv(1)%parms%sweeps_pre
end if
write(iout_,*)
end if
if (allocated(prec%precv(1)%sm2a)) then
write(iout_,*) 'Post smoother details'
call prec%precv(1)%sm2a%descr(info,iout=iout_)
if (nlev == 1) then
if (prec%precv(1)%parms%sweeps_post > 1) then
write(iout_,*) ' Number of smoother sweeps_post : ',&
& prec%precv(1)%parms%sweeps_post
end if
write(iout_,*)
end if
end if
end if
if (nlev > 1) then
!
! Print multilevel details
!
write(iout_,*)
write(iout_,*) 'Multilevel details'
write(iout_,*) ' Number of levels : ',nlev
write(iout_,*) ' Operator complexity: ',prec%get_complexity()
ilmin = 2
if (nlev == 2) ilmin=1
do ilev=ilmin,nlev
call prec%precv(ilev)%descr(ilev,nlev,ilmin,info,iout=iout_)
end do
write(iout_,*)
end if
end if
else
write(iout_,*) trim(name), &
& ': Error: no base preconditioner available, something is wrong!'
info = -2
return
endif
end subroutine mld_dfile_prec_descr
!
! Subroutines: mld_Tprec_free
! Version: real
mlprec/mld_s_as_smoother.f90
+1 -1
View File
@@ -461,7 +461,7 @@ contains
implicit none
character(len=32) :: val
val = "Schwarz smoother"
val = "Additive Schwarz"
end function s_as_smoother_get_fmt
function s_as_smoother_get_id() result(val)
mlprec/mld_s_prec_type.f90
+8 -134
View File
@@ -156,7 +156,14 @@ module mld_s_prec_type
interface mld_precdescr
module procedure mld_sfile_prec_descr
subroutine mld_sfile_prec_descr(prec,iout,root)
import :: mld_sprec_type, psb_ipk_
implicit none
! Arguments
class(mld_sprec_type), intent(in) :: prec
integer(psb_ipk_), intent(in), optional :: iout
integer(psb_ipk_), intent(in), optional :: root
end subroutine mld_sfile_prec_descr
end interface
interface mld_sizeof
@@ -489,139 +496,6 @@ contains
prec%op_complexity = num/den
end subroutine mld_s_cmp_compl
!
! Subroutine: mld_file_prec_descr
! Version: real
!
! This routine prints a description of the preconditioner to the standard
! output or to a file. It must be called after the preconditioner has been
! built by mld_precbld.
!
! Arguments:
! p - type(mld_Tprec_type), input.
! The preconditioner data structure to be printed out.
! info - integer, output.
! error code.
! iout - integer, input, optional.
! The id of the file where the preconditioner description
! will be printed. If iout is not present, then the standard
! output is condidered.
! root - integer, input, optional.
! The id of the process printing the message; -1 acts as a wildcard.
! Default is psb_root_
!
subroutine mld_sfile_prec_descr(prec,iout,root)
implicit none
! Arguments
class(mld_sprec_type), intent(in) :: prec
integer(psb_ipk_), intent(in), optional :: iout
integer(psb_ipk_), intent(in), optional :: root
! Local variables
integer(psb_ipk_) :: ilev, nlev, ilmin, info
integer(psb_ipk_) :: ictxt, me, np
character(len=20), parameter :: name='mld_file_prec_descr'
integer(psb_ipk_) :: iout_
integer(psb_ipk_) :: root_
info = psb_success_
if (present(iout)) then
iout_ = iout
else
iout_ = psb_out_unit
end if
if (iout_ < 0) iout_ = psb_out_unit
ictxt = prec%ictxt
if (allocated(prec%precv)) then
call psb_info(ictxt,me,np)
if (present(root)) then
root_ = root
else
root_ = psb_root_
end if
if (root_ == -1) root_ = me
!
! The preconditioner description is printed by processor psb_root_.
! This agrees with the fact that all the parameters defining the
! preconditioner have the same values on all the procs (this is
! ensured by mld_precbld).
!
if (me == root_) then
nlev = size(prec%precv)
do ilev = 1, nlev
if (.not.allocated(prec%precv(ilev)%sm)) then
info = 3111
write(iout_,*) ' ',name,&
& ': error: inconsistent MLPREC part, should call MLD_PRECINIT'
return
endif
end do
write(iout_,*)
write(iout_,'(a)') 'Preconditioner description'
if (nlev >= 1) then
!
! Print description of base preconditioner
!
if (nlev > 1) then
write(iout_,*) 'Multilevel Preconditioner'
write(iout_,*) 'Outer sweeps:',prec%outer_sweeps
write(iout_,*)
write(iout_,*) 'Base preconditioner (smoother) details'
endif
call prec%precv(1)%sm%descr(info,iout=iout_)
if (nlev == 1) then
if (prec%precv(1)%parms%sweeps_pre > 1) then
write(iout_,*) ' Number of smoother sweeps_pre : ',&
& prec%precv(1)%parms%sweeps_pre
end if
write(iout_,*)
end if
if (allocated(prec%precv(1)%sm2a)) then
write(iout_,*) 'Post smoother details'
call prec%precv(1)%sm2a%descr(info,iout=iout_)
if (nlev == 1) then
if (prec%precv(1)%parms%sweeps_post > 1) then
write(iout_,*) ' Number of smoother sweeps_post : ',&
& prec%precv(1)%parms%sweeps_post
end if
write(iout_,*)
end if
end if
end if
if (nlev > 1) then
!
! Print multilevel details
!
write(iout_,*)
write(iout_,*) 'Multilevel details'
write(iout_,*) ' Number of levels : ',nlev
write(iout_,*) ' Operator complexity: ',prec%get_complexity()
ilmin = 2
if (nlev == 2) ilmin=1
do ilev=ilmin,nlev
call prec%precv(ilev)%descr(ilev,nlev,ilmin,info,iout=iout_)
end do
write(iout_,*)
end if
end if
else
write(iout_,*) trim(name), &
& ': Error: no base preconditioner available, something is wrong!'
info = -2
return
endif
end subroutine mld_sfile_prec_descr
!
! Subroutines: mld_Tprec_free
! Version: real
mlprec/mld_z_as_smoother.f90
+1 -1
View File
@@ -461,7 +461,7 @@ contains
implicit none
character(len=32) :: val
val = "Schwarz smoother"
val = "Additive Schwarz"
end function z_as_smoother_get_fmt
function z_as_smoother_get_id() result(val)
mlprec/mld_z_prec_type.f90
+8 -134
View File
@@ -156,7 +156,14 @@ module mld_z_prec_type
interface mld_precdescr
module procedure mld_zfile_prec_descr
subroutine mld_zfile_prec_descr(prec,iout,root)
import :: mld_zprec_type, psb_ipk_
implicit none
! Arguments
class(mld_zprec_type), intent(in) :: prec
integer(psb_ipk_), intent(in), optional :: iout
integer(psb_ipk_), intent(in), optional :: root
end subroutine mld_zfile_prec_descr
end interface
interface mld_sizeof
@@ -489,139 +496,6 @@ contains
prec%op_complexity = num/den
end subroutine mld_z_cmp_compl
!
! Subroutine: mld_file_prec_descr
! Version: complex
!
! This routine prints a description of the preconditioner to the standard
! output or to a file. It must be called after the preconditioner has been
! built by mld_precbld.
!
! Arguments:
! p - type(mld_Tprec_type), input.
! The preconditioner data structure to be printed out.
! info - integer, output.
! error code.
! iout - integer, input, optional.
! The id of the file where the preconditioner description
! will be printed. If iout is not present, then the standard
! output is condidered.
! root - integer, input, optional.
! The id of the process printing the message; -1 acts as a wildcard.
! Default is psb_root_
!
subroutine mld_zfile_prec_descr(prec,iout,root)
implicit none
! Arguments
class(mld_zprec_type), intent(in) :: prec
integer(psb_ipk_), intent(in), optional :: iout
integer(psb_ipk_), intent(in), optional :: root
! Local variables
integer(psb_ipk_) :: ilev, nlev, ilmin, info
integer(psb_ipk_) :: ictxt, me, np
character(len=20), parameter :: name='mld_file_prec_descr'
integer(psb_ipk_) :: iout_
integer(psb_ipk_) :: root_
info = psb_success_
if (present(iout)) then
iout_ = iout
else
iout_ = psb_out_unit
end if
if (iout_ < 0) iout_ = psb_out_unit
ictxt = prec%ictxt
if (allocated(prec%precv)) then
call psb_info(ictxt,me,np)
if (present(root)) then
root_ = root
else
root_ = psb_root_
end if
if (root_ == -1) root_ = me
!
! The preconditioner description is printed by processor psb_root_.
! This agrees with the fact that all the parameters defining the
! preconditioner have the same values on all the procs (this is
! ensured by mld_precbld).
!
if (me == root_) then
nlev = size(prec%precv)
do ilev = 1, nlev
if (.not.allocated(prec%precv(ilev)%sm)) then
info = 3111
write(iout_,*) ' ',name,&
& ': error: inconsistent MLPREC part, should call MLD_PRECINIT'
return
endif
end do
write(iout_,*)
write(iout_,'(a)') 'Preconditioner description'
if (nlev >= 1) then
!
! Print description of base preconditioner
!
if (nlev > 1) then
write(iout_,*) 'Multilevel Preconditioner'
write(iout_,*) 'Outer sweeps:',prec%outer_sweeps
write(iout_,*)
write(iout_,*) 'Base preconditioner (smoother) details'
endif
call prec%precv(1)%sm%descr(info,iout=iout_)
if (nlev == 1) then
if (prec%precv(1)%parms%sweeps_pre > 1) then
write(iout_,*) ' Number of smoother sweeps_pre : ',&
& prec%precv(1)%parms%sweeps_pre
end if
write(iout_,*)
end if
if (allocated(prec%precv(1)%sm2a)) then
write(iout_,*) 'Post smoother details'
call prec%precv(1)%sm2a%descr(info,iout=iout_)
if (nlev == 1) then
if (prec%precv(1)%parms%sweeps_post > 1) then
write(iout_,*) ' Number of smoother sweeps_post : ',&
& prec%precv(1)%parms%sweeps_post
end if
write(iout_,*)
end if
end if
end if
if (nlev > 1) then
!
! Print multilevel details
!
write(iout_,*)
write(iout_,*) 'Multilevel details'
write(iout_,*) ' Number of levels : ',nlev
write(iout_,*) ' Operator complexity: ',prec%get_complexity()
ilmin = 2
if (nlev == 2) ilmin=1
do ilev=ilmin,nlev
call prec%precv(ilev)%descr(ilev,nlev,ilmin,info,iout=iout_)
end do
write(iout_,*)
end if
end if
else
write(iout_,*) trim(name), &
& ': Error: no base preconditioner available, something is wrong!'
info = -2
return
endif
end subroutine mld_zfile_prec_descr
!
! Subroutines: mld_Tprec_free
! Version: complex