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504 lines
16 KiB
Fortran
504 lines
16 KiB
Fortran
!!$
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!!$ Parallel Sparse BLAS version 2.2
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|
!!$ (C) Copyright 2006/2007/2008
|
|
!!$ Salvatore Filippone University of Rome Tor Vergata
|
|
!!$ Alfredo Buttari University of Rome Tor Vergata
|
|
!!$
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|
!!$ 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.
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!!$ 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.
|
|
!!$
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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_damax.f90
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!
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! Function: psb_damax
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! Searches the absolute max of X.
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!
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! normi := max(abs(sub(X)(i))
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!
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! where sub( X ) denotes X(1:N,JX:).
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!
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! Arguments:
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! x(:,:) - real The input vector.
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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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! jx - integer(optional). The column offset.
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!
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function psb_damax (x,desc_a, info, jx)
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use psb_penv_mod
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use psb_serial_mod
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use psb_descriptor_type
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use psb_check_mod
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use psb_error_mod
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implicit none
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real(psb_dpk_), intent(in) :: x(:,:)
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type(psb_desc_type), intent(in) :: desc_a
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integer, intent(out) :: info
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integer, optional, intent(in) :: jx
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real(psb_dpk_) :: psb_damax
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! locals
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integer :: ictxt, np, me,&
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& err_act, iix, jjx, ix, ijx, m, imax, idamax
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real(psb_dpk_) :: amax
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character(len=20) :: name, ch_err
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name='psb_damax'
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if(psb_get_errstatus() /= 0) return
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info=psb_success_
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call psb_erractionsave(err_act)
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amax=0.d0
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ictxt=psb_cd_get_context(desc_a)
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call psb_info(ictxt, me, np)
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if (np == -1) 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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ix = 1
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if (present(jx)) then
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ijx = jx
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else
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ijx = 1
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endif
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m = psb_cd_get_global_rows(desc_a)
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call psb_chkvect(m,1,size(x,1),ix,ijx,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'
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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 /= 1) 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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goto 9999
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end if
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! compute local max
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if ((psb_cd_get_local_rows(desc_a) > 0).and.(m /= 0)) then
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imax=idamax(psb_cd_get_local_rows(desc_a)-iix+1,x(iix,jjx),1)
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amax=abs(x(iix+imax-1,jjx))
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else
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amax = dzero
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end if
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! compute global max
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call psb_amx(ictxt, amax)
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psb_damax=amax
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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(ictxt)
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return
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end if
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return
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end function psb_damax
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!!$
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!!$ Parallel Sparse BLAS version 2.2
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!!$ (C) Copyright 2006/2007/2008
|
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!!$ Salvatore Filippone University of Rome Tor Vergata
|
|
!!$ Alfredo Buttari University of Rome Tor Vergata
|
|
!!$
|
|
!!$ 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
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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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!
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! Function: psb_damaxv
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! Searches the absolute max of X.
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!
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! normi := max(abs(X(i))
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!
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! Arguments:
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! x(:) - real The input vector.
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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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function psb_damaxv (x,desc_a, info)
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use psb_penv_mod
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use psb_serial_mod
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use psb_descriptor_type
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use psb_check_mod
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use psb_error_mod
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implicit none
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real(psb_dpk_), intent(in) :: x(:)
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type(psb_desc_type), intent(in) :: desc_a
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integer, intent(out) :: info
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real(psb_dpk_) :: psb_damaxv
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! locals
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integer :: ictxt, np, me,&
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& err_act, iix, jjx, jx, ix, m, imax, idamax
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real(psb_dpk_) :: amax
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character(len=20) :: name, ch_err
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name='psb_damaxv'
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if(psb_get_errstatus() /= 0) return
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info=psb_success_
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call psb_erractionsave(err_act)
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amax=0.d0
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ictxt=psb_cd_get_context(desc_a)
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call psb_info(ictxt, me, np)
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if (np == -1) 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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ix = 1
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jx = 1
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m = psb_cd_get_global_rows(desc_a)
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call psb_chkvect(m,1,size(x,1),ix,jx,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'
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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 /= 1) 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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goto 9999
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end if
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! compute local max
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if ((psb_cd_get_local_rows(desc_a) > 0).and.(m /= 0)) then
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imax=idamax(psb_cd_get_local_rows(desc_a)-iix+1,x(iix),1)
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amax=abs(x(iix+imax-1))
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else
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amax = dzero
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end if
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! compute global max
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call psb_amx(ictxt, amax)
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psb_damaxv=amax
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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(ictxt)
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return
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end if
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return
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end function psb_damaxv
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!!$
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!!$ Parallel Sparse BLAS version 2.2
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|
!!$ (C) Copyright 2006/2007/2008
|
|
!!$ Salvatore Filippone University of Rome Tor Vergata
|
|
!!$ Alfredo Buttari University of Rome Tor Vergata
|
|
!!$
|
|
!!$ 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.
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!!$
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!!$
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!
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! Subroutine: psb_damaxvs
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! Searches the absolute max of X.
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!
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! normi := max(abs(sub(X)(i))
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|
!
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|
! where sub( X ) denotes X(1:N,JX:).
|
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!
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! Arguments:
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|
! res - real. The result.
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! x(:,:) - real The input vector.
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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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! jx - integer(optional). The column offset.
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!
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subroutine psb_damaxvs (res,x,desc_a, info)
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use psb_sparse_mod, psb_protect_name => psb_damaxvs
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implicit none
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real(psb_dpk_), intent(in) :: x(:)
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type(psb_desc_type), intent(in) :: desc_a
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integer, intent(out) :: info
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real(psb_dpk_), intent(out) :: res
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! locals
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integer :: ictxt, np, me,&
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& err_act, iix, jjx, ix, ijx, m, imax, idamax
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real(psb_dpk_) :: amax
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character(len=20) :: name, ch_err
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name='psb_damaxvs'
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if(psb_get_errstatus() /= 0) return
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info=psb_success_
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call psb_erractionsave(err_act)
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amax=0.d0
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ictxt=psb_cd_get_context(desc_a)
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call psb_info(ictxt, me, np)
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if (np == -1) 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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ix = 1
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ijx=1
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m = psb_cd_get_global_rows(desc_a)
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call psb_chkvect(m,1,size(x,1),ix,ijx,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'
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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 /= 1) 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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goto 9999
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end if
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! compute local max
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if ((psb_cd_get_local_rows(desc_a) > 0).and.(m /= 0)) then
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imax=idamax(psb_cd_get_local_rows(desc_a)-iix+1,x(iix),1)
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amax=abs(x(iix+imax-1))
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else
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amax = dzero
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end if
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! compute global max
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call psb_amx(ictxt, amax)
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res = amax
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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(ictxt)
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return
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end if
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return
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end subroutine psb_damaxvs
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!!$
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|
!!$ Parallel Sparse BLAS version 2.2
|
|
!!$ (C) Copyright 2006/2007/2008
|
|
!!$ Salvatore Filippone University of Rome Tor Vergata
|
|
!!$ Alfredo Buttari University of Rome Tor Vergata
|
|
!!$
|
|
!!$ 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_dmamaxs
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|
! Searches the absolute max of X.
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|
!
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|
! normi := max(abs(X(i))
|
|
!
|
|
! Arguments:
|
|
! res(:) - real The result.
|
|
! x(:,:) - real The input vector.
|
|
! desc_a - type(psb_desc_type). The communication descriptor.
|
|
! info - integer. Return code
|
|
!
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subroutine psb_dmamaxs (res,x,desc_a, info,jx)
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use psb_sparse_mod, psb_protect_name => psb_dmamaxs
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implicit none
|
|
|
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real(psb_dpk_), intent(in) :: x(:,:)
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type(psb_desc_type), intent(in) :: desc_a
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|
integer, intent(out) :: info
|
|
integer, optional, intent(in) :: jx
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|
real(psb_dpk_), intent(out) :: res(:)
|
|
|
|
! locals
|
|
integer :: ictxt, np, me,&
|
|
& err_act, iix, jjx, ix, ijx, m, imax, i, k, idamax
|
|
real(psb_dpk_) :: amax
|
|
character(len=20) :: name, ch_err
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|
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name='psb_dmamaxs'
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if (psb_get_errstatus() /= 0) return
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info=psb_success_
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call psb_erractionsave(err_act)
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amax=0.d0
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ictxt=psb_cd_get_context(desc_a)
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call psb_info(ictxt, me, np)
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if (np == -1) 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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ix = 1
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if (present(jx)) then
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ijx = jx
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else
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ijx = 1
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endif
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m = psb_cd_get_global_rows(desc_a)
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k = min(size(x,2),size(res,1))
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call psb_chkvect(m,1,size(x,1),ix,ijx,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'
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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 /= 1) then
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|
info=psb_err_ix_n1_iy_n1_unsupported_
|
|
call psb_errpush(info,name)
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|
goto 9999
|
|
end if
|
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|
|
! compute local max
|
|
if ((psb_cd_get_local_rows(desc_a) > 0).and.(m /= 0)) then
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|
do i=1,k
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|
imax=idamax(psb_cd_get_local_rows(desc_a)-iix+1,x(iix,jjx+i-1),1)
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res(i)=abs(x(iix+imax-1,jjx+i-1))
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end do
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else
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amax = dzero
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end if
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! compute global max
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call psb_amx(ictxt, res(1:k))
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|
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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(ictxt)
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return
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end if
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return
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end subroutine psb_dmamaxs
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