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psblas3/prec/psb_dprc_aply.f90

195 lines
6.8 KiB
Fortran

!!$
!!$ Parallel Sparse BLAS version 2.2
!!$ (C) Copyright 2006/2007/2008
!!$ Salvatore Filippone University of Rome Tor Vergata
!!$ Alfredo Buttari University of Rome Tor Vergata
!!$
!!$ 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 PSBLAS 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 PSBLAS 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_sparse_mod
use psb_prec_mod, psb_protect_name => psb_dprc_aply
implicit none
type(psb_desc_type),intent(in) :: desc_data
type(psb_dprec_type), intent(in) :: prec
real(psb_dpk_),intent(in) :: x(:)
real(psb_dpk_),intent(inout) :: y(:)
integer, intent(out) :: info
character(len=1), optional :: trans
real(psb_dpk_), intent(inout), optional, target :: work(:)
! Local variables
character :: trans_
real(psb_dpk_), pointer :: work_(:)
integer :: ictxt,np,me,err_act
character(len=20) :: name
name='psb_prc_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%prec)) then
info = 1124
call psb_errpush(info,name,a_err="preconditioner")
goto 9999
end if
call prec%prec%apply(done,x,dzero,y,desc_data,info,trans_,work=work_)
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 == psb_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 version 2.2
!!$ (C) Copyright 2006/2007/2008
!!$ 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_sparse_mod
use psb_prec_mod, psb_protect_name => psb_dprc_aply1
implicit none
type(psb_desc_type),intent(in) :: desc_data
type(psb_dprec_type), intent(in) :: prec
real(psb_dpk_),intent(inout) :: x(:)
integer, intent(out) :: info
character(len=1), optional :: trans
! Local variables
character :: trans_
integer :: ictxt,np,me, err_act
real(psb_dpk_), pointer :: WW(:), w1(:)
character(len=20) :: name
name='psb_prc_aply1'
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_=psb_toupper(trans)
else
trans_='N'
end if
if (.not.allocated(prec%prec)) then
info = 1124
call psb_errpush(info,name,a_err="preconditioner")
goto 9999
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
call prec%prec%apply(done,x,dzero,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 == psb_act_abort_) then
call psb_error()
return
end if
return
end subroutine psb_dprc_aply1