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amg4psblas/mld_zprec_aply.f90

213 lines
7.6 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 mld_zprec_aply(prec,x,y,desc_data,info,trans, work)
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use psb_base_mod
use mld_prec_mod, mld_protect_name => mld_zprec_aply
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implicit none
type(psb_desc_type),intent(in) :: desc_data
type(mld_zprec_type), intent(in) :: prec
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complex(kind(0.d0)),intent(inout) :: x(:), y(:)
integer, intent(out) :: info
character(len=1), optional :: trans
complex(kind(0.d0)), optional, target :: work(:)
! Local variables
character :: trans_
complex(kind(1.d0)), pointer :: work_(:)
integer :: ictxt,np,me,err_act,iwsz
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logical,parameter :: debug=.false., debugprt=.false.
character(len=20) :: name
name='mld_zprec_aply'
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info = 0
call psb_erractionsave(err_act)
ictxt = psb_cd_get_context(desc_data)
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call psb_info(ictxt, me, np)
if (present(trans)) then
trans_=trans
else
trans_='N'
end if
if (present(work)) then
work_ => work
else
iwsz = max(1,4*psb_cd_get_local_cols(desc_data))
allocate(work_(iwsz),stat=info)
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if (info /= 0) then
info=4025
call psb_errpush(info,name,i_err=(/iwsz,0,0,0,0/),&
& a_err='complex(kind(1.d0))')
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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 mld_mlprec_aply(zone,prec%baseprecv,x,zzero,y,desc_data,trans_,work_,info)
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if(info /= 0) then
call psb_errpush(4010,name,a_err='mld_zmlprec_aply')
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goto 9999
end if
else if (size(prec%baseprecv) == 1) then
call mld_baseprec_aply(zone,prec%baseprecv(1),x,zzero,y,desc_data,trans_, work_,info)
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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.psb_act_abort_) then
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call psb_error()
return
end if
return
end subroutine mld_zprec_aply
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!!$
!!$
!!$ 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 mld_zprec_aply1(prec,x,desc_data,info,trans)
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use psb_base_mod
use mld_prec_mod, mld_protect_name => mld_zprec_aply1
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implicit none
type(psb_desc_type),intent(in) :: desc_data
type(mld_zprec_type), intent(in) :: prec
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complex(kind(0.d0)),intent(inout) :: x(:)
integer, intent(out) :: info
character(len=1), optional :: trans
logical,parameter :: debug=.false., debugprt=.false.
! Local variables
character :: trans_
integer :: ictxt,np,me,i, isz, err_act, int_err(5)
complex(kind(1.d0)), pointer :: WW(:), w1(:)
character(len=20) :: name, ch_err
name='mld_zprec_aply1'
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info = 0
call psb_erractionsave(err_act)
ictxt = psb_cd_get_context(desc_data)
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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
info=4025
call psb_errpush(info,name,i_err=(/2*size(x),0,0,0,0/),&
& a_err='complex(kind(1.d0))')
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goto 9999
end if
if (debug) write(0,*) 'Prc_aply1 Size(x) ',size(x), size(ww),size(w1)
call mld_zprec_aply(prec,x,ww,desc_data,info,trans_,work=w1)
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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.psb_act_abort_) then
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call psb_error()
return
end if
return
end subroutine mld_zprec_aply1