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psblas3/base/psblas/psb_casum.f90

508 lines
15 KiB
Fortran

!
! Parallel Sparse BLAS version 3.5
! (C) Copyright 2006-2018
! Salvatore Filippone
! Alfredo Buttari
!
! 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 PSBLAS 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 PSBLAS 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.
!
!
! File: psb_casum.f90
!
! Function: psb_casum
! Computes norm1 of X
!
! norm1 := sum(sub( X )(i))
!
! where sub( X ) denotes X(1:N,JX:).
!
! Arguments:
! x(:,:) - complex The input vector.
! desc_a - type(psb_desc_type). The communication descriptor.
! info - integer. Return code
! jx - integer(optional). The column offset.
!
function psb_casum (x,desc_a, info, jx,global) result(res)
use psb_base_mod, psb_protect_name => psb_casum
implicit none
complex(psb_spk_), intent(in) :: x(:,:)
type(psb_desc_type), intent(in) :: desc_a
integer(psb_ipk_), intent(out) :: info
integer(psb_ipk_), optional, intent(in) :: jx
real(psb_spk_) :: res
logical, intent(in), optional :: global
! locals
type(psb_ctxt_type) :: ctxt
integer(psb_ipk_) :: np, me, &
& err_act, iix, jjx, i, idx, ndm, ldx
integer(psb_lpk_) :: ix, ijx, iy, ijy, m
logical :: global_
character(len=20) :: name, ch_err
name='psb_casum'
info=psb_success_
call psb_erractionsave(err_act)
if (psb_errstatus_fatal()) then
info = psb_err_internal_error_ ; goto 9999
end if
ctxt=desc_a%get_context()
call psb_info(ctxt, me, np)
if (np == -1) then
info = psb_err_context_error_
call psb_errpush(info,name)
goto 9999
endif
ix = 1
if (present(jx)) then
ijx = jx
else
ijx = 1
endif
if (present(global)) then
global_ = global
else
global_ = .true.
end if
m = desc_a%get_global_rows()
ldx = size(x,1)
! check vector correctness
call psb_chkvect(m,lone,ldx,ix,ijx,desc_a,info,iix,jjx)
if(info /= psb_success_) then
info=psb_err_from_subroutine_
ch_err='psb_chkvect'
call psb_errpush(info,name,a_err=ch_err)
goto 9999
end if
if (iix /= 1) then
info=psb_err_ix_n1_iy_n1_unsupported_
call psb_errpush(info,name)
goto 9999
end if
! compute local max
if(desc_a%get_local_rows() > 0) then
res = psb_asum(desc_a%get_local_rows()-iix+1,x(:,jjx))
! adjust res because overlapped elements are computed more than once
do i=1,size(desc_a%ovrlap_elem,1)
idx = desc_a%ovrlap_elem(i,1)
ndm = desc_a%ovrlap_elem(i,2)
res = res - (real(ndm-1)/real(ndm))*psb_nrm1(x(idx,jjx))
end do
else
res = szero
end if
! compute global sum
if (global_) call psb_sum(ctxt, res)
call psb_erractionrestore(err_act)
return
9999 call psb_error_handler(ctxt,err_act)
return
end function psb_casum
! Function: psb_casum_vect
! Computes norm1 of X
!
! norm1 := sum(sub( X )(i))
!
! where sub( X ) denotes X(1:N,JX:).
!
! Arguments:
! x - type(psb_c_vect_type) The input vector.
! desc_a - type(psb_desc_type). The communication descriptor.
! info - integer. Return code
! jx - integer(optional). The column offset.
!
function psb_casum_vect(x, desc_a, info,global) result(res)
use psb_base_mod, psb_protect_name => psb_casum_vect
implicit none
real(psb_spk_) :: res
type(psb_c_vect_type), intent (inout) :: x
type(psb_desc_type), intent (in) :: desc_a
integer(psb_ipk_), intent(out) :: info
logical, intent(in), optional :: global
! locals
type(psb_ctxt_type) :: ctxt
integer(psb_ipk_) :: np, me,&
& err_act, iix, jjx, imax, i, idx, ndm
integer(psb_lpk_) :: ix, jx, iy, ijy, m
logical :: global_
character(len=20) :: name, ch_err
name='psb_casumv'
if (psb_errstatus_fatal()) then
info = psb_err_internal_error_ ; goto 9999
end if
info=psb_success_
call psb_erractionsave(err_act)
ctxt=desc_a%get_context()
call psb_info(ctxt, me, np)
if (np == -1) then
info = psb_err_context_error_
call psb_errpush(info,name)
goto 9999
endif
if (.not.allocated(x%v)) then
info = psb_err_invalid_vect_state_
call psb_errpush(info,name)
goto 9999
endif
if (present(global)) then
global_ = global
else
global_ = .true.
end if
ix = 1
jx = 1
m = desc_a%get_global_rows()
call psb_chkvect(m,lone,x%get_nrows(),ix,jx,desc_a,info,iix,jjx)
if(info /= psb_success_) then
info=psb_err_from_subroutine_
ch_err='psb_chkvect'
call psb_errpush(info,name,a_err=ch_err)
goto 9999
end if
if (iix /= 1) then
info=psb_err_ix_n1_iy_n1_unsupported_
call psb_errpush(info,name)
goto 9999
end if
! compute local max
if ((desc_a%get_local_rows() > 0).and.(m /= 0)) then
res = x%asum(desc_a%get_local_rows())
if (size(desc_a%ovrlap_elem,1)>0) then
if (x%is_dev()) call x%sync()
! adjust res because overlapped elements are computed more than once
do i=1,size(desc_a%ovrlap_elem,1)
idx = desc_a%ovrlap_elem(i,1)
ndm = desc_a%ovrlap_elem(i,2)
res = res - (real(ndm-1)/real(ndm))*abs(x%v%v(idx))
end do
end if
else
res = szero
end if
! compute global sum
if (global_) call psb_sum(ctxt, res)
call psb_erractionrestore(err_act)
return
9999 call psb_error_handler(ctxt,err_act)
return
end function psb_casum_vect
!!$
!!$ Parallel Sparse BLAS version 3.5
!!$ (C) Copyright 2006-2018
!!$ Salvatore Filippone University of Rome Tor Vergata
!!$ Alfredo Buttari
!!$
!!$ 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 PSBLAS 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 PSBLAS 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.
!!$
!!$
!
! Function: psb_casumv
! Computes norm1 of X
!
! norm1 := sum(X(i))
!
! Arguments:
! x(:) - complex The input vector.
! desc_a - type(psb_desc_type). The communication descriptor.
! info - integer. Return code
!
function psb_casumv(x,desc_a, info,global) result(res)
use psb_base_mod, psb_protect_name => psb_casumv
implicit none
complex(psb_spk_), intent(in) :: x(:)
type(psb_desc_type), intent(in) :: desc_a
integer(psb_ipk_), intent(out) :: info
real(psb_spk_) :: res
logical, intent(in), optional :: global
! locals
type(psb_ctxt_type) :: ctxt
integer(psb_ipk_) :: np, me,&
& err_act, iix, jjx, i, idx, ndm, ldx
integer(psb_lpk_) :: ix, jx, iy, ijy, m
logical :: global_
character(len=20) :: name, ch_err
name='psb_casumv'
info=psb_success_
call psb_erractionsave(err_act)
if (psb_errstatus_fatal()) then
info = psb_err_internal_error_ ; goto 9999
end if
ctxt=desc_a%get_context()
call psb_info(ctxt, me, np)
if (np == -1) then
info = psb_err_context_error_
call psb_errpush(info,name)
goto 9999
endif
if (present(global)) then
global_ = global
else
global_ = .true.
end if
ix = 1
jx=1
m = desc_a%get_global_rows()
ldx = size(x,1)
! check vector correctness
call psb_chkvect(m,lone,ldx,ix,jx,desc_a,info,iix,jjx)
if(info /= psb_success_) then
info=psb_err_from_subroutine_
ch_err='psb_chkvect'
call psb_errpush(info,name,a_err=ch_err)
goto 9999
end if
if (iix /= 1) then
info=psb_err_ix_n1_iy_n1_unsupported_
call psb_errpush(info,name)
goto 9999
end if
! compute local max
if(desc_a%get_local_rows() > 0) then
res = psb_asum(desc_a%get_local_rows(),x)
! adjust asum because overlapped elements are computed more than once
do i=1,size(desc_a%ovrlap_elem,1)
idx = desc_a%ovrlap_elem(i,1)
ndm = desc_a%ovrlap_elem(i,2)
res = res - (real(ndm-1)/real(ndm))*psb_nrm1(x(idx))
end do
else
res = szero
end if
! compute global sum
if (global_) call psb_sum(ctxt, res)
call psb_erractionrestore(err_act)
return
9999 call psb_error_handler(ctxt,err_act)
return
end function psb_casumv
!!$
!!$ Parallel Sparse BLAS version 3.5
!!$ (C) Copyright 2006-2018
!!$ Salvatore Filippone University of Rome Tor Vergata
!!$ Alfredo Buttari
!!$
!!$ 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 PSBLAS 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 PSBLAS 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: psb_casumvs
! Computes norm1 of X
!
! norm1 := sum(X(i))
!
! Arguments:
! res - real. The result.
! x(:) - complex The input vector.
! desc_a - type(psb_desc_type). The communication descriptor.
! info - integer. Return code
! jx - integer(optional). The column offset.
!
subroutine psb_casumvs(res,x,desc_a, info,global)
use psb_base_mod, psb_protect_name => psb_casumvs
implicit none
complex(psb_spk_), intent(in) :: x(:)
real(psb_spk_), intent(out) :: res
type(psb_desc_type), intent(in) :: desc_a
integer(psb_ipk_), intent(out) :: info
logical, intent(in), optional :: global
! locals
type(psb_ctxt_type) :: ctxt
integer(psb_ipk_) :: np, me,&
& err_act, iix, jjx, i, idx, ndm, ldx
integer(psb_lpk_) :: ix, jx, iy, ijy, m
logical :: global_
character(len=20) :: name, ch_err
name='psb_casumvs'
info=psb_success_
call psb_erractionsave(err_act)
if (psb_errstatus_fatal()) then
info = psb_err_internal_error_ ; goto 9999
end if
ctxt=desc_a%get_context()
call psb_info(ctxt, me, np)
if (np == -1) then
info = psb_err_context_error_
call psb_errpush(info,name)
goto 9999
endif
if (present(global)) then
global_ = global
else
global_ = .true.
end if
ix = 1
jx = 1
m = desc_a%get_global_rows()
ldx = size(x,1)
! check vector correctness
call psb_chkvect(m,lone,ldx,ix,jx,desc_a,info,iix,jjx)
if(info /= psb_success_) then
info=psb_err_from_subroutine_
ch_err='psb_chkvect'
call psb_errpush(info,name,a_err=ch_err)
goto 9999
end if
if (iix /= 1) then
info=psb_err_ix_n1_iy_n1_unsupported_
call psb_errpush(info,name)
goto 9999
end if
! compute local max
if(desc_a%get_local_rows() > 0) then
res = psb_asum(desc_a%get_local_rows(),x)
! adjust asum because overlapped elements are computed more than once
do i=1,size(desc_a%ovrlap_elem,1)
idx = desc_a%ovrlap_elem(i,1)
ndm = desc_a%ovrlap_elem(i,2)
res = res - (real(ndm-1)/real(ndm))*psb_nrm1(x(idx))
end do
else
res = szero
end if
! compute global sum
if (global_) call psb_sum(ctxt,res)
call psb_erractionrestore(err_act)
return
9999 call psb_error_handler(ctxt,err_act)
return
end subroutine psb_casumvs