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180 lines
5.2 KiB
Fortran
180 lines
5.2 KiB
Fortran
!
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! Parallel Sparse BLAS version 3.5
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! (C) Copyright 2006-2018
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! Salvatore Filippone
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! Alfredo Buttari
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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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! File: psb_ddiv_vect
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subroutine psb_ddiv_vect(x,y,desc_a,info)
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use psb_base_mod, psb_protect_name => psb_ddiv_vect
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implicit none
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type(psb_d_vect_type), intent (inout) :: x
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type(psb_d_vect_type), intent (inout) :: y
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type(psb_desc_type), intent (in) :: desc_a
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integer(psb_ipk_), intent(out) :: info
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! locals
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integer(psb_ipk_) :: ictxt, np, me,&
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& err_act, iix, jjx, iiy, jjy
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integer(psb_lpk_) :: ix, ijx, iy, ijy, m
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character(len=20) :: name, ch_err
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name='psb_d_div_vect'
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if (psb_errstatus_fatal()) return
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info=psb_success_
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call psb_erractionsave(err_act)
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ictxt=desc_a%get_context()
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call psb_info(ictxt, me, np)
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if (np == -ione) then
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info = psb_err_context_error_
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call psb_errpush(info,name)
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goto 9999
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endif
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if (.not.allocated(x%v)) then
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info = psb_err_invalid_vect_state_
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call psb_errpush(info,name)
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goto 9999
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endif
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if (.not.allocated(y%v)) then
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info = psb_err_invalid_vect_state_
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call psb_errpush(info,name)
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goto 9999
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endif
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ix = ione
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iy = ione
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m = desc_a%get_global_rows()
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! check vector correctness
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call psb_chkvect(m,lone,x%get_nrows(),ix,lone,desc_a,info,iix,jjx)
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if(info /= psb_success_) then
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info=psb_err_from_subroutine_
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ch_err='psb_chkvect 1'
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call psb_errpush(info,name,a_err=ch_err)
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goto 9999
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end if
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call psb_chkvect(m,lone,y%get_nrows(),iy,lone,desc_a,info,iiy,jjy)
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if(info /= psb_success_) then
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info=psb_err_from_subroutine_
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ch_err='psb_chkvect 2'
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call psb_errpush(info,name,a_err=ch_err)
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goto 9999
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end if
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if(desc_a%get_local_rows() > 0) then
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call x%div(y,info)
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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(ictxt,err_act)
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return
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end subroutine psb_ddiv_vect
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subroutine psb_ddiv_vect_check(x,y,desc_a,info,flag)
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use psb_base_mod, psb_protect_name => psb_ddiv_vect_check
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implicit none
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type(psb_d_vect_type), intent (inout) :: x
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type(psb_d_vect_type), intent (inout) :: y
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type(psb_desc_type), intent (in) :: desc_a
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integer(psb_ipk_), intent(out) :: info
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logical, intent(in) :: flag
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! locals
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integer(psb_ipk_) :: ictxt, np, me,&
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& err_act, iix, jjx, iiy, jjy
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integer(psb_lpk_) :: ix, ijx, iy, ijy, m
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character(len=20) :: name, ch_err
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name='psb_d_div_vect_check'
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if (psb_errstatus_fatal()) return
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info=psb_success_
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call psb_erractionsave(err_act)
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ictxt=desc_a%get_context()
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call psb_info(ictxt, me, np)
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if (np == -ione) then
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info = psb_err_context_error_
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call psb_errpush(info,name)
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goto 9999
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endif
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if (.not.allocated(x%v)) then
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info = psb_err_invalid_vect_state_
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call psb_errpush(info,name)
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goto 9999
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endif
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if (.not.allocated(y%v)) then
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info = psb_err_invalid_vect_state_
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call psb_errpush(info,name)
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goto 9999
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endif
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ix = ione
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iy = ione
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m = desc_a%get_global_rows()
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! check vector correctness
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call psb_chkvect(m,lone,x%get_nrows(),ix,lone,desc_a,info,iix,jjx)
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if(info /= psb_success_) then
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info=psb_err_from_subroutine_
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ch_err='psb_chkvect 1'
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call psb_errpush(info,name,a_err=ch_err)
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goto 9999
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end if
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call psb_chkvect(m,lone,y%get_nrows(),iy,lone,desc_a,info,iiy,jjy)
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if(info /= psb_success_) then
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info=psb_err_from_subroutine_
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ch_err='psb_chkvect 2'
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call psb_errpush(info,name,a_err=ch_err)
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goto 9999
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end if
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if(desc_a%get_local_rows() > 0) then
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call x%div(y,info,flag)
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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(ictxt,err_act)
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return
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end subroutine psb_ddiv_vect_check
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