|
|
|
|
!!$
|
|
|
|
|
!!$
|
|
|
|
|
!!$ MD2P4
|
|
|
|
|
!!$ Multilevel Domain Decomposition Parallel Preconditioner Package for PSBLAS
|
|
|
|
|
!!$ for
|
|
|
|
|
!!$ Parallel Sparse BLAS v2.0
|
|
|
|
|
!!$ (C) Copyright 2006 Salvatore Filippone University of Rome Tor Vergata
|
|
|
|
|
!!$ Alfredo Buttari University of Rome Tor Vergata
|
|
|
|
|
!!$ Daniela di Serafino Second University of Naples
|
|
|
|
|
!!$ Pasqua D'Ambra ICAR-CNR
|
|
|
|
|
!!$
|
|
|
|
|
!!$ 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 MD2P4 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 MD2P4 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.
|
|
|
|
|
!!$
|
|
|
|
|
!!$
|
|
|
|
|
subroutine psb_zbaseprc_aply(alpha,prec,x,beta,y,desc_data,trans,work,info)
|
|
|
|
|
!
|
|
|
|
|
! Compute Y <- beta*Y + alpha*K^-1 X
|
|
|
|
|
! where K is a a basic preconditioner stored in prec
|
|
|
|
|
!
|
|
|
|
|
use psb_base_mod
|
|
|
|
|
use psb_prec_type
|
|
|
|
|
implicit none
|
|
|
|
|
|
|
|
|
|
type(psb_desc_type),intent(in) :: desc_data
|
|
|
|
|
type(psb_zbaseprc_type), intent(in) :: prec
|
|
|
|
|
complex(kind(0.d0)),intent(inout) :: x(:), y(:)
|
|
|
|
|
complex(kind(0.d0)),intent(in) :: alpha,beta
|
|
|
|
|
character(len=1) :: trans
|
|
|
|
|
complex(kind(0.d0)),target :: work(:)
|
|
|
|
|
integer, intent(out) :: info
|
|
|
|
|
|
|
|
|
|
! Local variables
|
|
|
|
|
integer :: n_row,n_col, int_err(5)
|
|
|
|
|
complex(kind(1.d0)), pointer :: ww(:), aux(:), tx(:),ty(:)
|
|
|
|
|
character ::diagl, diagu
|
|
|
|
|
integer :: ictxt,np,me,i, isz, nrg, err_act
|
|
|
|
|
real(kind(1.d0)) :: t1, t2, t3, t4, t5, t6, t7
|
|
|
|
|
logical,parameter :: debug=.false., debugprt=.false.
|
|
|
|
|
character(len=20) :: name, ch_err
|
|
|
|
|
|
|
|
|
|
interface psb_bjac_aply
|
|
|
|
|
subroutine psb_zbjac_aply(alpha,prec,x,beta,y,desc_data,trans,work,info)
|
|
|
|
|
use psb_base_mod
|
|
|
|
|
use psb_prec_type
|
|
|
|
|
type(psb_desc_type), intent(in) :: desc_data
|
|
|
|
|
type(psb_zbaseprc_type), intent(in) :: prec
|
|
|
|
|
complex(kind(0.d0)),intent(inout) :: x(:), y(:)
|
|
|
|
|
complex(kind(0.d0)),intent(in) :: alpha,beta
|
|
|
|
|
character(len=1) :: trans
|
|
|
|
|
complex(kind(0.d0)),target :: work(:)
|
|
|
|
|
integer, intent(out) :: info
|
|
|
|
|
end subroutine psb_zbjac_aply
|
|
|
|
|
end interface
|
|
|
|
|
|
|
|
|
|
name='psb_zbaseprc_aply'
|
|
|
|
|
info = 0
|
|
|
|
|
call psb_erractionsave(err_act)
|
|
|
|
|
|
|
|
|
|
ictxt=desc_data%matrix_data(psb_ctxt_)
|
|
|
|
|
call psb_info(ictxt, me, np)
|
|
|
|
|
|
|
|
|
|
diagl='U'
|
|
|
|
|
diagu='U'
|
|
|
|
|
|
|
|
|
|
select case(trans)
|
|
|
|
|
case('N','n')
|
|
|
|
|
case('T','t','C','c')
|
|
|
|
|
case default
|
|
|
|
|
info=40
|
|
|
|
|
int_err(1)=6
|
|
|
|
|
ch_err(2:2)=trans
|
|
|
|
|
goto 9999
|
|
|
|
|
end select
|
|
|
|
|
|
|
|
|
|
select case(prec%iprcparm(p_type_))
|
|
|
|
|
|
|
|
|
|
case(noprec_)
|
|
|
|
|
|
|
|
|
|
call psb_geaxpby(alpha,x,beta,y,desc_data,info)
|
|
|
|
|
|
|
|
|
|
case(diag_)
|
|
|
|
|
|
|
|
|
|
if (size(work) >= size(x)) then
|
|
|
|
|
ww => work
|
|
|
|
|
else
|
|
|
|
|
allocate(ww(size(x)),stat=info)
|
|
|
|
|
if (info /= 0) then
|
|
|
|
|
call psb_errpush(4010,name,a_err='Allocate')
|
|
|
|
|
goto 9999
|
|
|
|
|
end if
|
|
|
|
|
end if
|
|
|
|
|
|
|
|
|
|
n_row=desc_data%matrix_data(psb_n_row_)
|
|
|
|
|
ww(1:n_row) = x(1:n_row)*prec%d(1:n_row)
|
|
|
|
|
call psb_geaxpby(alpha,ww,beta,y,desc_data,info)
|
|
|
|
|
|
|
|
|
|
if (size(work) < size(x)) then
|
|
|
|
|
deallocate(ww,stat=info)
|
|
|
|
|
if (info /= 0) then
|
|
|
|
|
call psb_errpush(4010,name,a_err='Deallocate')
|
|
|
|
|
goto 9999
|
|
|
|
|
end if
|
|
|
|
|
end if
|
|
|
|
|
|
|
|
|
|
case(bjac_)
|
|
|
|
|
|
|
|
|
|
call psb_bjac_aply(alpha,prec,x,beta,y,desc_data,trans,work,info)
|
|
|
|
|
if(info.ne.0) then
|
|
|
|
|
info=4010
|
|
|
|
|
ch_err='psb_bjac_aply'
|
|
|
|
|
goto 9999
|
|
|
|
|
end if
|
|
|
|
|
|
|
|
|
|
case(asm_,ras_,ash_,rash_)
|
|
|
|
|
|
|
|
|
|
if (prec%iprcparm(n_ovr_)==0) then
|
|
|
|
|
! shortcut: this fixes performance for RAS(0) == BJA
|
|
|
|
|
call psb_bjac_aply(alpha,prec,x,beta,y,desc_data,trans,work,info)
|
|
|
|
|
if(info.ne.0) then
|
|
|
|
|
info=4010
|
|
|
|
|
ch_err='psb_bjacaply'
|
|
|
|
|
goto 9999
|
|
|
|
|
end if
|
|
|
|
|
|
|
|
|
|
else
|
|
|
|
|
! Note: currently trans is unused.
|
|
|
|
|
n_row=prec%desc_data%matrix_data(psb_n_row_)
|
|
|
|
|
n_col=prec%desc_data%matrix_data(psb_n_col_)
|
|
|
|
|
|
|
|
|
|
isz=max(n_row,N_COL)
|
|
|
|
|
if ((6*isz) <= size(work)) then
|
|
|
|
|
ww => work(1:isz)
|
|
|
|
|
tx => work(isz+1:2*isz)
|
|
|
|
|
ty => work(2*isz+1:3*isz)
|
|
|
|
|
aux => work(3*isz+1:)
|
|
|
|
|
else if ((4*isz) <= size(work)) then
|
|
|
|
|
aux => work(1:)
|
|
|
|
|
allocate(ww(isz),tx(isz),ty(isz),stat=info)
|
|
|
|
|
if (info /= 0) then
|
|
|
|
|
call psb_errpush(4010,name,a_err='Allocate')
|
|
|
|
|
goto 9999
|
|
|
|
|
end if
|
|
|
|
|
else if ((3*isz) <= size(work)) then
|
|
|
|
|
ww => work(1:isz)
|
|
|
|
|
tx => work(isz+1:2*isz)
|
|
|
|
|
ty => work(2*isz+1:3*isz)
|
|
|
|
|
allocate(aux(4*isz),stat=info)
|
|
|
|
|
if (info /= 0) then
|
|
|
|
|
call psb_errpush(4010,name,a_err='Allocate')
|
|
|
|
|
goto 9999
|
|
|
|
|
end if
|
|
|
|
|
|
|
|
|
|
else
|
|
|
|
|
allocate(ww(isz),tx(isz),ty(isz),&
|
|
|
|
|
&aux(4*isz),stat=info)
|
|
|
|
|
if (info /= 0) then
|
|
|
|
|
call psb_errpush(4010,name,a_err='Allocate')
|
|
|
|
|
goto 9999
|
|
|
|
|
end if
|
|
|
|
|
|
|
|
|
|
endif
|
|
|
|
|
|
|
|
|
|
if (debugprt) write(0,*)' vdiag: ',prec%d(:)
|
|
|
|
|
if (debug) write(0,*) 'Bi-CGSTAB with Additive Schwarz prec'
|
|
|
|
|
|
|
|
|
|
tx(1:desc_data%matrix_data(psb_n_row_)) = x(1:desc_data%matrix_data(psb_n_row_))
|
|
|
|
|
tx(desc_data%matrix_data(psb_n_row_)+1:isz) = zzero
|
|
|
|
|
|
|
|
|
|
if (prec%iprcparm(restr_)==psb_halo_) then
|
|
|
|
|
call psb_halo(tx,prec%desc_data,info,work=aux,data=psb_comm_ext_)
|
|
|
|
|
if(info /=0) then
|
|
|
|
|
info=4010
|
|
|
|
|
ch_err='psb_halo'
|
|
|
|
|
goto 9999
|
|
|
|
|
end if
|
|
|
|
|
else if (prec%iprcparm(restr_) /= psb_none_) then
|
|
|
|
|
write(0,*) 'Problem in PRC_APLY: Unknown value for restriction ',&
|
|
|
|
|
&prec%iprcparm(restr_)
|
|
|
|
|
end if
|
|
|
|
|
|
|
|
|
|
if (prec%iprcparm(iren_)>0) then
|
|
|
|
|
call zgelp('N',n_row,1,prec%perm,tx,isz,ww,isz,info)
|
|
|
|
|
if(info /=0) then
|
|
|
|
|
info=4010
|
|
|
|
|
ch_err='psb_zgelp'
|
|
|
|
|
goto 9999
|
|
|
|
|
end if
|
|
|
|
|
endif
|
|
|
|
|
|
|
|
|
|
call psb_bjac_aply(zone,prec,tx,zzero,ty,prec%desc_data,trans,aux,info)
|
|
|
|
|
if(info.ne.0) then
|
|
|
|
|
info=4010
|
|
|
|
|
ch_err='psb_bjac_aply'
|
|
|
|
|
goto 9999
|
|
|
|
|
end if
|
|
|
|
|
|
|
|
|
|
if (prec%iprcparm(iren_)>0) then
|
|
|
|
|
call zgelp('N',n_row,1,prec%invperm,ty,isz,ww,isz,info)
|
|
|
|
|
if(info /=0) then
|
|
|
|
|
info=4010
|
|
|
|
|
ch_err='psb_zgelp'
|
|
|
|
|
goto 9999
|
|
|
|
|
end if
|
|
|
|
|
endif
|
|
|
|
|
|
|
|
|
|
select case (prec%iprcparm(prol_))
|
|
|
|
|
|
|
|
|
|
case(psb_none_)
|
|
|
|
|
! Would work anyway, but since it's supposed to do nothing...
|
|
|
|
|
! call f90_psovrl(ty,prec%desc_data,update=prec%a_restrict)
|
|
|
|
|
|
|
|
|
|
case(psb_sum_,psb_avg_)
|
|
|
|
|
call psb_ovrl(ty,prec%desc_data,info,&
|
|
|
|
|
& update=prec%iprcparm(prol_),work=aux)
|
|
|
|
|
if(info /=0) then
|
|
|
|
|
info=4010
|
|
|
|
|
ch_err='psb_ovrl'
|
|
|
|
|
goto 9999
|
|
|
|
|
end if
|
|
|
|
|
|
|
|
|
|
case default
|
|
|
|
|
write(0,*) 'Problem in PRC_APLY: Unknown value for prolongation ',&
|
|
|
|
|
& prec%iprcparm(prol_)
|
|
|
|
|
end select
|
|
|
|
|
|
|
|
|
|
call psb_geaxpby(alpha,ty,beta,y,desc_data,info)
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
if ((6*isz) <= size(work)) then
|
|
|
|
|
else if ((4*isz) <= size(work)) then
|
|
|
|
|
deallocate(ww,tx,ty)
|
|
|
|
|
else if ((3*isz) <= size(work)) then
|
|
|
|
|
deallocate(aux)
|
|
|
|
|
else
|
|
|
|
|
deallocate(ww,aux,tx,ty)
|
|
|
|
|
endif
|
|
|
|
|
end if
|
|
|
|
|
case default
|
|
|
|
|
write(0,*) 'Invalid PRE%PREC ',prec%iprcparm(p_type_),':',&
|
|
|
|
|
& min_prec_,noprec_,diag_,bjac_,&
|
|
|
|
|
& ras_,asm_,ash_,rash_
|
|
|
|
|
end select
|
|
|
|
|
|
|
|
|
|
call psb_erractionrestore(err_act)
|
|
|
|
|
return
|
|
|
|
|
|
|
|
|
|
9999 continue
|
|
|
|
|
call psb_errpush(info,name,i_err=int_err,a_err=ch_err)
|
|
|
|
|
call psb_erractionrestore(err_act)
|
|
|
|
|
if (err_act.eq.psb_act_abort_) then
|
|
|
|
|
call psb_error()
|
|
|
|
|
return
|
|
|
|
|
end if
|
|
|
|
|
return
|
|
|
|
|
|
|
|
|
|
end subroutine psb_zbaseprc_aply
|
|
|
|
|
|
