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@ -741,3 +741,138 @@ subroutine psb_caddconst_vect(x,b,z,desc_a,info)
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return
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end subroutine psb_caddconst_vect
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!
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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_caxpby.f90
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!
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! Subroutine: psb_caxpby_vect
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! Adds one distributed vector to another,
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!
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! Y := beta * Y + alpha * X
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!
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! Arguments:
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! alpha - complex,input The scalar used to multiply each component of X
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! x - type(psb_c_vect_type) The input vector containing the entries of X
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! beta - complex,input The scalar used to multiply each component of Y
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! y - type(psb_c_multivect_type) The input/output vector Y
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! j - integer(psb_ipk) The column component of the multivect to which we should add
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! desc_a - type(psb_desc_type) The communication descriptor.
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! info - integer Return code
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!
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! Note: from a functional point of view, X is input, but here
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! it's declared INOUT because of the sync() methods.
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!
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subroutine psb_caxpby_multivect_vect(alpha, x, beta, y,&
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& j, desc_a, info)
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use psb_base_mod, psb_protect_name => psb_caxpby_multivect_vect
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implicit none
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type(psb_c_vect_type), intent (inout) :: x
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type(psb_c_multivect_type), intent (inout) :: y
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complex(psb_spk_), intent (in) :: alpha, beta
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integer(psb_ipk_), intent(in) :: j
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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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type(psb_ctxt_type) :: ctxt
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integer(psb_ipk_) :: 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_cgeaxpby'
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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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ctxt=desc_a%get_context()
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call psb_info(ctxt, 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 ((iix /= ione).or.(iiy /= ione)) then
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info=psb_err_ix_n1_iy_n1_unsupported_
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call psb_errpush(info,name)
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end if
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if(desc_a%get_local_rows() > 0) then
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call y%axpby(desc_a%get_local_rows(),&
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& alpha,x,beta,j,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(ctxt,err_act)
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return
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end subroutine psb_caxpby_multivect_vect
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Cirdans-Home
1 year ago