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amg4psblas/psb_dprc_aply.f90

251 lines
9.0 KiB
Fortran

18 years ago
!!$
!!$
!!$ 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_dprc_aply(prec,x,y,desc_data,info,trans, work)
use psb_base_mod
use psb_prec_type
implicit none
type(psb_desc_type),intent(in) :: desc_data
type(psb_dprec_type), intent(in) :: prec
real(kind(0.d0)),intent(inout) :: x(:), y(:)
integer, intent(out) :: info
character(len=1), optional :: trans
real(kind(0.d0)), optional, target :: work(:)
! Local variables
character :: trans_
real(kind(1.d0)), pointer :: work_(:)
integer :: ictxt,np,me,err_act
logical,parameter :: debug=.false., debugprt=.false.
external mpi_wtime
character(len=20) :: name
interface psb_baseprc_aply
subroutine psb_dbaseprc_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_dbaseprc_type), intent(in) :: prec
real(kind(0.d0)),intent(inout) :: x(:), y(:)
real(kind(0.d0)),intent(in) :: alpha,beta
character(len=1) :: trans
real(kind(0.d0)),target :: work(:)
integer, intent(out) :: info
end subroutine psb_dbaseprc_aply
end interface
interface psb_mlprc_aply
subroutine psb_dmlprc_aply(alpha,baseprecv,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_dbaseprc_type), intent(in) :: baseprecv(:)
real(kind(0.d0)),intent(in) :: alpha,beta
real(kind(0.d0)),intent(inout) :: x(:), y(:)
character :: trans
real(kind(0.d0)),target :: work(:)
integer, intent(out) :: info
end subroutine psb_dmlprc_aply
end interface
name='psb_dprc_aply'
info = 0
call psb_erractionsave(err_act)
ictxt=desc_data%matrix_data(psb_ctxt_)
call psb_info(ictxt, me, np)
if (present(trans)) then
trans_=trans
else
trans_='N'
end if
if (present(work)) then
work_ => work
else
allocate(work_(4*desc_data%matrix_data(psb_n_col_)),stat=info)
if (info /= 0) then
call psb_errpush(4010,name,a_err='Allocate')
goto 9999
end if
end if
if (.not.(allocated(prec%baseprecv))) then
write(0,*) 'Inconsistent preconditioner: neither SMTH nor BASE?'
end if
if (size(prec%baseprecv) >1) then
if (debug) write(0,*) 'Into mlprc_aply',size(x),size(y)
call psb_mlprc_aply(done,prec%baseprecv,x,dzero,y,desc_data,trans_,work_,info)
if(info /= 0) then
call psb_errpush(4010,name,a_err='psb_dmlprc_aply')
goto 9999
end if
else if (size(prec%baseprecv) == 1) then
call psb_baseprc_aply(done,prec%baseprecv(1),x,dzero,y,desc_data,trans_, work_,info)
else
write(0,*) 'Inconsistent preconditioner: size of baseprecv???'
endif
if (present(work)) then
else
deallocate(work_)
end if
call psb_erractionrestore(err_act)
return
9999 continue
call psb_erractionrestore(err_act)
if (err_act.eq.act_abort) then
call psb_error()
return
end if
return
end subroutine psb_dprc_aply
!!$
!!$
!!$ 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_dprc_aply1(prec,x,desc_data,info,trans)
use psb_base_mod
use psb_prec_type
implicit none
type(psb_desc_type),intent(in) :: desc_data
type(psb_dprec_type), intent(in) :: prec
real(kind(0.d0)),intent(inout) :: x(:)
integer, intent(out) :: info
character(len=1), optional :: trans
logical,parameter :: debug=.false., debugprt=.false.
interface
subroutine psb_dprc_aply(prec,x,y,desc_data,info,trans, work)
use psb_base_mod
use psb_prec_type
implicit none
type(psb_desc_type),intent(in) :: desc_data
type(psb_dprec_type), intent(in) :: prec
real(kind(0.d0)),intent(inout) :: x(:), y(:)
integer, intent(out) :: info
character(len=1), optional :: trans
real(kind(0.d0)), optional, target :: work(:)
end subroutine psb_dprc_aply
end interface
! Local variables
character :: trans_
integer :: ictxt,np,me,i, err_act
real(kind(1.d0)), pointer :: WW(:), w1(:)
character(len=20) :: name
name='psb_dprec1'
info = 0
call psb_erractionsave(err_act)
ictxt=desc_data%matrix_data(psb_ctxt_)
call psb_info(ictxt, me, np)
if (present(trans)) then
trans_=trans
else
trans_='N'
end if
allocate(ww(size(x)),w1(size(x)),stat=info)
if (info /= 0) then
call psb_errpush(4010,name,a_err='Allocate')
goto 9999
end if
if (debug) write(0,*) 'Prc_aply1 Size(x) ',size(x), size(ww),size(w1)
call psb_dprc_aply(prec,x,ww,desc_data,info,trans_,work=w1)
if(info /=0) goto 9999
x(:) = ww(:)
deallocate(ww,W1)
call psb_erractionrestore(err_act)
return
9999 continue
call psb_errpush(info,name)
call psb_erractionrestore(err_act)
if (err_act.eq.act_abort) then
call psb_error()
return
end if
return
end subroutine psb_dprc_aply1