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129 lines
4.6 KiB
Fortran
129 lines
4.6 KiB
Fortran
!
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! Parallel Sparse BLAS version 3.5
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! (C) Copyright 2006, 2010, 2015, 2017
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! Salvatore Filippone Cranfield University
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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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subroutine psb_d_null_apply_vect(alpha,prec,x,beta,y,desc_data,info,trans,work)
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use psb_base_mod
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use psb_d_nullprec, psb_protect_name => psb_d_null_apply_vect
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implicit none
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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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integer(psb_ipk_) :: err_act, nrow, ierr(5)
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character(len=20) :: name='c_null_prec_apply'
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call psb_erractionsave(err_act)
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!
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! This is the base version and we should throw an error.
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! Or should it be the NULL preonditioner???
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!
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info = psb_success_
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nrow = desc_data%get_local_rows()
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if (x%get_nrows() < nrow) then
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info = 36; ierr(1) = 2; ierr(2) = nrow;
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call psb_errpush(info,name,i_err=ierr)
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goto 9999
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end if
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if (y%get_nrows() < nrow) then
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info = 36; ierr(1) = 3; ierr(2) = nrow;
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call psb_errpush(info,name,i_err=ierr)
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goto 9999
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end if
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call psb_geaxpby(alpha,x,beta,y,desc_data,info)
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if (info /= psb_success_ ) then
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info = psb_err_from_subroutine_
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call psb_errpush(info,name,a_err="psb_geaxpby")
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goto 9999
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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 call psb_error_handler(err_act)
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return
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end subroutine psb_d_null_apply_vect
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subroutine psb_d_null_apply(alpha,prec,x,beta,y,desc_data,info,trans,work)
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use psb_base_mod
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use psb_d_nullprec, psb_protect_name => psb_d_null_apply
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implicit none
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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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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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integer(psb_ipk_) :: err_act, nrow, ierr(5)
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character(len=20) :: name='c_null_prec_apply'
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call psb_erractionsave(err_act)
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!
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!
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info = psb_success_
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nrow = desc_data%get_local_rows()
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if (size(x) < nrow) then
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info = 36; ierr(1) = 2; ierr(2) = nrow;
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call psb_errpush(info,name,i_err=ierr)
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goto 9999
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end if
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if (size(y) < nrow) then
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info = 36; ierr(1) = 3; ierr(2) = nrow;
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call psb_errpush(info,name,i_err=ierr)
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goto 9999
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end if
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call psb_geaxpby(alpha,x,beta,y,desc_data,info)
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if (info /= psb_success_ ) then
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info = psb_err_from_subroutine_
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call psb_errpush(info,name,a_err="psb_geaxpby")
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goto 9999
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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 call psb_error_handler(err_act)
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return
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end subroutine psb_d_null_apply
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