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301 lines
9.2 KiB
Fortran
301 lines
9.2 KiB
Fortran
!!$
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!!$ Parallel Sparse BLAS version 3.0
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!!$ (C) Copyright 2006, 2007, 2008, 2009, 2010, 2012
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!!$ Salvatore Filippone University of Rome Tor Vergata
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!!$ Alfredo Buttari CNRS-IRIT, Toulouse
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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 PSBLAS 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 PSBLAS 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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module psb_d_nullprec
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use psb_d_base_prec_mod
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type, extends(psb_d_base_prec_type) :: psb_d_null_prec_type
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contains
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procedure, pass(prec) :: d_apply_v => psb_d_null_apply_vect
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procedure, pass(prec) :: d_apply => psb_d_null_apply
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procedure, pass(prec) :: precbld => psb_d_null_precbld
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procedure, pass(prec) :: precinit => psb_d_null_precinit
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procedure, pass(prec) :: precseti => psb_d_null_precseti
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procedure, pass(prec) :: precsetr => psb_d_null_precsetr
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procedure, pass(prec) :: precsetc => psb_d_null_precsetc
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procedure, pass(prec) :: precfree => psb_d_null_precfree
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procedure, pass(prec) :: precdescr => psb_d_null_precdescr
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procedure, pass(prec) :: sizeof => psb_d_null_sizeof
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end type psb_d_null_prec_type
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private :: psb_d_null_precbld, psb_d_null_precseti,&
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& psb_d_null_precsetr, psb_d_null_precsetc, psb_d_null_sizeof,&
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& psb_d_null_precinit, psb_d_null_precfree, psb_d_null_precdescr
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interface
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subroutine psb_d_null_apply_vect(alpha,prec,x,beta,y,desc_data,info,trans,work)
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import :: psb_ipk_, psb_desc_type, psb_d_null_prec_type, psb_d_vect_type, psb_dpk_
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type(psb_desc_type),intent(in) :: desc_data
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class(psb_d_null_prec_type), intent(inout) :: prec
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type(psb_d_vect_type),intent(inout) :: x
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real(psb_dpk_),intent(in) :: alpha, beta
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type(psb_d_vect_type),intent(inout) :: y
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integer(psb_ipk_), intent(out) :: info
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character(len=1), optional :: trans
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real(psb_dpk_),intent(inout), optional, target :: work(:)
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end subroutine psb_d_null_apply_vect
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end interface
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interface
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subroutine psb_d_null_apply(alpha,prec,x,beta,y,desc_data,info,trans,work)
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import :: psb_ipk_, psb_desc_type, psb_d_null_prec_type, psb_dpk_
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type(psb_desc_type),intent(in) :: desc_data
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class(psb_d_null_prec_type), intent(in) :: prec
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real(psb_dpk_),intent(inout) :: x(:)
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real(psb_dpk_),intent(in) :: alpha, beta
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real(psb_dpk_),intent(inout) :: y(:)
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integer(psb_ipk_), intent(out) :: info
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character(len=1), optional :: trans
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real(psb_dpk_),intent(inout), optional, target :: work(:)
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end subroutine psb_d_null_apply
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end interface
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contains
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subroutine psb_d_null_precinit(prec,info)
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Implicit None
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class(psb_d_null_prec_type),intent(inout) :: prec
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integer(psb_ipk_), intent(out) :: info
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integer(psb_ipk_) :: err_act, nrow
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character(len=20) :: name='d_null_precinit'
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call psb_erractionsave(err_act)
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info = psb_success_
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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 == psb_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_d_null_precinit
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subroutine psb_d_null_precbld(a,desc_a,prec,info,upd,amold,afmt,vmold)
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Implicit None
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type(psb_dspmat_type), intent(in), target :: a
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type(psb_desc_type), intent(in), target :: desc_a
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class(psb_d_null_prec_type),intent(inout) :: prec
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integer(psb_ipk_), intent(out) :: info
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character, intent(in), optional :: upd
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character(len=*), intent(in), optional :: afmt
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class(psb_d_base_sparse_mat), intent(in), optional :: amold
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class(psb_d_base_vect_type), intent(in), optional :: vmold
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integer(psb_ipk_) :: err_act, nrow
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character(len=20) :: name='d_null_precbld'
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call psb_erractionsave(err_act)
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info = psb_success_
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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 == psb_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_d_null_precbld
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subroutine psb_d_null_precseti(prec,what,val,info)
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Implicit None
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class(psb_d_null_prec_type),intent(inout) :: prec
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integer(psb_ipk_), intent(in) :: what
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integer(psb_ipk_), intent(in) :: val
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integer(psb_ipk_), intent(out) :: info
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integer(psb_ipk_) :: err_act, nrow
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character(len=20) :: name='d_null_precset'
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call psb_erractionsave(err_act)
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info = psb_success_
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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 == psb_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_d_null_precseti
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subroutine psb_d_null_precsetr(prec,what,val,info)
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Implicit None
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class(psb_d_null_prec_type),intent(inout) :: prec
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integer(psb_ipk_), intent(in) :: what
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real(psb_dpk_), intent(in) :: val
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integer(psb_ipk_), intent(out) :: info
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integer(psb_ipk_) :: err_act, nrow
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character(len=20) :: name='d_null_precset'
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call psb_erractionsave(err_act)
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info = psb_success_
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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 == psb_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_d_null_precsetr
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subroutine psb_d_null_precsetc(prec,what,val,info)
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Implicit None
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class(psb_d_null_prec_type),intent(inout) :: prec
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integer(psb_ipk_), intent(in) :: what
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character(len=*), intent(in) :: val
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integer(psb_ipk_), intent(out) :: info
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integer(psb_ipk_) :: err_act, nrow
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character(len=20) :: name='d_null_precset'
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call psb_erractionsave(err_act)
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info = psb_success_
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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 == psb_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_d_null_precsetc
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subroutine psb_d_null_precfree(prec,info)
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Implicit None
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class(psb_d_null_prec_type), intent(inout) :: prec
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integer(psb_ipk_), intent(out) :: info
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integer(psb_ipk_) :: err_act, nrow
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character(len=20) :: name='d_null_precset'
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call psb_erractionsave(err_act)
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info = psb_success_
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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 == psb_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_d_null_precfree
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subroutine psb_d_null_precdescr(prec,iout)
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Implicit None
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class(psb_d_null_prec_type), intent(in) :: prec
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integer(psb_ipk_), intent(in), optional :: iout
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integer(psb_ipk_) :: err_act, nrow, info
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character(len=20) :: name='d_null_precset'
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integer(psb_ipk_) :: iout_
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call psb_erractionsave(err_act)
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info = psb_success_
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if (present(iout)) then
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iout_ = iout
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else
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iout_ = 6
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end if
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write(iout_,*) 'No preconditioning'
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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 == psb_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_d_null_precdescr
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function psb_d_null_sizeof(prec) result(val)
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class(psb_d_null_prec_type), intent(in) :: prec
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integer(psb_long_int_k_) :: val
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val = 0
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return
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end function psb_d_null_sizeof
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end module psb_d_nullprec
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