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251 lines
9.0 KiB
Fortran
251 lines
9.0 KiB
Fortran
18 years ago
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!!$
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!!$
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!!$ MD2P4
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!!$ Multilevel Domain Decomposition Parallel Preconditioner Package for PSBLAS
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!!$ for
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!!$ Parallel Sparse BLAS v2.0
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!!$ (C) Copyright 2006 Salvatore Filippone University of Rome Tor Vergata
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!!$ Alfredo Buttari University of Rome Tor Vergata
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!!$ Daniela di Serafino Second University of Naples
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!!$ Pasqua D'Ambra ICAR-CNR
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!!$
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!!$ Redistribution and use in source and binary forms, with or without
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!!$ modification, are permitted provided that the following conditions
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!!$ are met:
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!!$ 1. Redistributions of source code must retain the above copyright
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!!$ notice, this list of conditions and the following disclaimer.
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!!$ 2. Redistributions in binary form must reproduce the above copyright
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!!$ notice, this list of conditions, and the following disclaimer in the
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!!$ documentation and/or other materials provided with the distribution.
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!!$ 3. The name of the MD2P4 group or the names of its contributors may
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!!$ not be used to endorse or promote products derived from this
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!!$ software without specific written permission.
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!!$
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!!$ THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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!!$ ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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!!$ TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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!!$ PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE MD2P4 GROUP OR ITS CONTRIBUTORS
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!!$ BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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!!$ CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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!!$ SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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!!$ INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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!!$ CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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!!$ ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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!!$ POSSIBILITY OF SUCH DAMAGE.
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!!$
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!!$
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subroutine psb_dprc_aply(prec,x,y,desc_data,info,trans, work)
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use psb_base_mod
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use psb_prec_type
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implicit none
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type(psb_desc_type),intent(in) :: desc_data
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type(psb_dprec_type), intent(in) :: prec
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real(kind(0.d0)),intent(inout) :: x(:), y(:)
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integer, intent(out) :: info
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character(len=1), optional :: trans
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real(kind(0.d0)), optional, target :: work(:)
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! Local variables
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character :: trans_
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real(kind(1.d0)), pointer :: work_(:)
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integer :: ictxt,np,me,err_act
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logical,parameter :: debug=.false., debugprt=.false.
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external mpi_wtime
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character(len=20) :: name
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interface psb_baseprc_aply
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subroutine psb_dbaseprc_aply(alpha,prec,x,beta,y,desc_data,trans,work,info)
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use psb_base_mod
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use psb_prec_type
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type(psb_desc_type),intent(in) :: desc_data
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type(psb_dbaseprc_type), intent(in) :: prec
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real(kind(0.d0)),intent(inout) :: x(:), y(:)
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real(kind(0.d0)),intent(in) :: alpha,beta
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character(len=1) :: trans
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real(kind(0.d0)),target :: work(:)
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integer, intent(out) :: info
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end subroutine psb_dbaseprc_aply
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end interface
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interface psb_mlprc_aply
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subroutine psb_dmlprc_aply(alpha,baseprecv,x,beta,y,desc_data,trans,work,info)
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use psb_base_mod
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use psb_prec_type
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type(psb_desc_type),intent(in) :: desc_data
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type(psb_dbaseprc_type), intent(in) :: baseprecv(:)
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real(kind(0.d0)),intent(in) :: alpha,beta
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real(kind(0.d0)),intent(inout) :: x(:), y(:)
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character :: trans
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real(kind(0.d0)),target :: work(:)
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integer, intent(out) :: info
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end subroutine psb_dmlprc_aply
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end interface
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name='psb_dprc_aply'
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info = 0
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call psb_erractionsave(err_act)
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ictxt=desc_data%matrix_data(psb_ctxt_)
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call psb_info(ictxt, me, np)
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if (present(trans)) then
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trans_=trans
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else
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trans_='N'
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end if
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if (present(work)) then
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work_ => work
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else
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allocate(work_(4*desc_data%matrix_data(psb_n_col_)),stat=info)
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if (info /= 0) then
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call psb_errpush(4010,name,a_err='Allocate')
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goto 9999
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end if
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end if
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if (.not.(allocated(prec%baseprecv))) then
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write(0,*) 'Inconsistent preconditioner: neither SMTH nor BASE?'
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end if
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if (size(prec%baseprecv) >1) then
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if (debug) write(0,*) 'Into mlprc_aply',size(x),size(y)
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call psb_mlprc_aply(done,prec%baseprecv,x,dzero,y,desc_data,trans_,work_,info)
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if(info /= 0) then
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call psb_errpush(4010,name,a_err='psb_dmlprc_aply')
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goto 9999
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end if
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else if (size(prec%baseprecv) == 1) then
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call psb_baseprc_aply(done,prec%baseprecv(1),x,dzero,y,desc_data,trans_, work_,info)
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else
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write(0,*) 'Inconsistent preconditioner: size of baseprecv???'
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endif
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if (present(work)) then
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else
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deallocate(work_)
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end if
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call psb_erractionrestore(err_act)
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return
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9999 continue
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call psb_erractionrestore(err_act)
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if (err_act.eq.act_abort) then
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call psb_error()
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return
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end if
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return
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end subroutine psb_dprc_aply
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!!$
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!!$
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!!$ MD2P4
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!!$ Multilevel Domain Decomposition Parallel Preconditioner Package for PSBLAS
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!!$ for
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!!$ Parallel Sparse BLAS v2.0
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!!$ (C) Copyright 2006 Salvatore Filippone University of Rome Tor Vergata
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!!$ Alfredo Buttari University of Rome Tor Vergata
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!!$ Daniela di Serafino Second University of Naples
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!!$ Pasqua D'Ambra ICAR-CNR
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!!$
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!!$ Redistribution and use in source and binary forms, with or without
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|
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!!$ modification, are permitted provided that the following conditions
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|
|
!!$ are met:
|
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|
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!!$ 1. Redistributions of source code must retain the above copyright
|
||
|
|
!!$ notice, this list of conditions and the following disclaimer.
|
||
|
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!!$ 2. Redistributions in binary form must reproduce the above copyright
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|
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!!$ notice, this list of conditions, and the following disclaimer in the
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|
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!!$ documentation and/or other materials provided with the distribution.
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|
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!!$ 3. The name of the MD2P4 group or the names of its contributors may
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|
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!!$ not be used to endorse or promote products derived from this
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|
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!!$ software without specific written permission.
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|
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!!$
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!!$ THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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!!$ ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
|
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|
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!!$ TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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|
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!!$ PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE MD2P4 GROUP OR ITS CONTRIBUTORS
|
||
|
|
!!$ BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
|
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|
|
!!$ 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
|
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|
|
!!$ CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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|
|
!!$ ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
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|
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!!$ POSSIBILITY OF SUCH DAMAGE.
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!!$
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!!$
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subroutine psb_dprc_aply1(prec,x,desc_data,info,trans)
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use psb_base_mod
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use psb_prec_type
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implicit none
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type(psb_desc_type),intent(in) :: desc_data
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type(psb_dprec_type), intent(in) :: prec
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real(kind(0.d0)),intent(inout) :: x(:)
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integer, intent(out) :: info
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character(len=1), optional :: trans
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logical,parameter :: debug=.false., debugprt=.false.
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interface
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subroutine psb_dprc_aply(prec,x,y,desc_data,info,trans, work)
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use psb_base_mod
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use psb_prec_type
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implicit none
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type(psb_desc_type),intent(in) :: desc_data
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type(psb_dprec_type), intent(in) :: prec
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real(kind(0.d0)),intent(inout) :: x(:), y(:)
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integer, intent(out) :: info
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character(len=1), optional :: trans
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real(kind(0.d0)), optional, target :: work(:)
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end subroutine psb_dprc_aply
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end interface
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! Local variables
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character :: trans_
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integer :: ictxt,np,me,i, err_act
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real(kind(1.d0)), pointer :: WW(:), w1(:)
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character(len=20) :: name
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name='psb_dprec1'
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info = 0
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call psb_erractionsave(err_act)
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ictxt=desc_data%matrix_data(psb_ctxt_)
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call psb_info(ictxt, me, np)
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if (present(trans)) then
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trans_=trans
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else
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trans_='N'
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end if
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allocate(ww(size(x)),w1(size(x)),stat=info)
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if (info /= 0) then
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call psb_errpush(4010,name,a_err='Allocate')
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goto 9999
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end if
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if (debug) write(0,*) 'Prc_aply1 Size(x) ',size(x), size(ww),size(w1)
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call psb_dprc_aply(prec,x,ww,desc_data,info,trans_,work=w1)
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if(info /=0) goto 9999
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x(:) = ww(:)
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deallocate(ww,W1)
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call psb_erractionrestore(err_act)
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return
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9999 continue
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call psb_errpush(info,name)
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call psb_erractionrestore(err_act)
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if (err_act.eq.act_abort) then
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call psb_error()
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return
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end if
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return
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end subroutine psb_dprc_aply1
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