!!$ !!$ Parallel Sparse BLAS version 3.0 !!$ (C) Copyright 2006, 2007, 2008, 2009, 2010 !!$ Salvatore Filippone University of Rome Tor Vergata !!$ Alfredo Buttari CNRS-IRIT, Toulouse !!$ !!$ 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_sasum.f90 ! ! Function: psb_sasum ! Computes norm1 of X ! ! norm1 := sum(sub( X )(i)) ! ! where sub( X ) denotes X(1:N,JX:). ! ! Arguments: ! x(:,:) - real The input vector. ! desc_a - type(psb_desc_type). The communication descriptor. ! info - integer. Return code ! jx - integer(optional). The column offset. ! function psb_sasum (x,desc_a, info, jx) use psb_serial_mod use psb_descriptor_type use psb_check_mod use psb_error_mod use psb_penv_mod implicit none real(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_) :: psb_sasum ! locals integer(psb_ipk_) :: ictxt, np, me, err_act, & & iix, jjx, ix, ijx, m, i, idx, ndm real(psb_spk_) :: asum, sasum character(len=20) :: name, ch_err name='psb_sasum' if(psb_get_errstatus() /= 0) return info=psb_success_ call psb_erractionsave(err_act) asum=0.0 ictxt=desc_a%get_context() call psb_info(ictxt, 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 m = desc_a%get_global_rows() ! check vector correctness call psb_chkvect(m,1,size(x,1),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 ((m /= 0)) then if(desc_a%get_local_rows() > 0) then asum=sasum(desc_a%get_local_rows()-iix+1,x(iix:,jjx),ione) ! 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) asum = asum - (real(ndm-1)/real(ndm))*abs(x(idx,jjx)) end do ! compute global sum call psb_sum(ictxt, asum) else asum=0.0 ! compute global sum call psb_sum(ictxt, asum) end if else asum=0.0 end if psb_sasum=asum call psb_erractionrestore(err_act) return 9999 continue call psb_erractionrestore(err_act) if (err_act == psb_act_abort_) then call psb_error(ictxt) return end if return end function psb_sasum !!$ !!$ Parallel Sparse BLAS version 3.0 !!$ (C) Copyright 2006, 2007, 2008, 2009, 2010 !!$ Salvatore Filippone University of Rome Tor Vergata !!$ Alfredo Buttari CNRS-IRIT, Toulouse !!$ !!$ 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_sasumv ! Computes norm1 of X ! ! norm1 := sum(X(i)) ! ! Arguments: ! x(:) - real The input vector. ! desc_a - type(psb_desc_type). The communication descriptor. ! info - integer. Return code ! function psb_sasumv (x,desc_a, info) use psb_serial_mod use psb_descriptor_type use psb_check_mod use psb_error_mod use psb_penv_mod implicit none real(psb_spk_), intent(in) :: x(:) type(psb_desc_type), intent(in) :: desc_a integer(psb_ipk_), intent(out) :: info real(psb_spk_) :: psb_sasumv ! locals integer(psb_ipk_) :: ictxt, np, me, err_act, iix, jjx, jx, ix, m, i, idx, ndm real(psb_spk_) :: asum, sasum character(len=20) :: name, ch_err name='psb_sasumv' if(psb_get_errstatus() /= 0) return info=psb_success_ call psb_erractionsave(err_act) asum=0.0 ictxt=desc_a%get_context() call psb_info(ictxt, me, np) if (np == -1) then info = psb_err_context_error_ call psb_errpush(info,name) goto 9999 endif ix = 1 jx=1 m = desc_a%get_global_rows() ! check vector correctness call psb_chkvect(m,1,size(x),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 ((m /= 0)) then if(desc_a%get_local_rows() > 0) then asum=sasum(desc_a%get_local_rows(),x,ione) ! 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) asum = asum - (real(ndm-1)/real(ndm))*abs(x(idx)) end do ! compute global sum call psb_sum(ictxt, asum) else asum=0.0 ! compute global sum call psb_sum(ictxt, asum) end if else asum=0.0 end if psb_sasumv=asum call psb_erractionrestore(err_act) return 9999 continue call psb_erractionrestore(err_act) if (err_act == psb_act_abort_) then call psb_error(ictxt) return end if return end function psb_sasumv function psb_sasum_vect(x, desc_a, info) result(res) use psb_penv_mod use psb_serial_mod use psb_descriptor_type use psb_check_mod use psb_error_mod use psb_s_vect_mod implicit none real(psb_spk_) :: res type(psb_s_vect_type), intent (inout) :: x type(psb_desc_type), intent (in) :: desc_a integer(psb_ipk_), intent(out) :: info ! locals integer(psb_ipk_) :: ictxt, np, me,& & err_act, iix, jjx, jx, ix, m, imax real(psb_spk_) :: asum character(len=20) :: name, ch_err name='psb_sasumv' if (psb_errstatus_fatal()) return info=psb_success_ call psb_erractionsave(err_act) asum=0.d0 ictxt=desc_a%get_context() call psb_info(ictxt, 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 ix = 1 jx = 1 m = desc_a%get_global_rows() call psb_chkvect(m,1,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 asum=x%asum(desc_a%get_local_rows()) else asum = szero end if ! compute global sum call psb_sum(ictxt, asum) res=asum call psb_erractionrestore(err_act) return 9999 continue call psb_erractionrestore(err_act) if (err_act == psb_act_abort_) then call psb_error(ictxt) return end if return end function psb_sasum_vect !!$ !!$ Parallel Sparse BLAS version 3.0 !!$ (C) Copyright 2006, 2007, 2008, 2009, 2010 !!$ Salvatore Filippone University of Rome Tor Vergata !!$ Alfredo Buttari CNRS-IRIT, Toulouse !!$ !!$ 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_sasumvs ! Computes norm1 of X ! ! norm1 := sum(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 ! jx - integer(optional). The column offset. ! subroutine psb_sasumvs(res,x,desc_a, info) use psb_base_mod, psb_protect_name => psb_sasumvs implicit none real(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 ! locals integer(psb_ipk_) :: ictxt, np, me, err_act, iix, jjx, ix, jx, m, i, idx, ndm real(psb_spk_) :: asum, sasum character(len=20) :: name, ch_err name='psb_sasumvs' if(psb_get_errstatus() /= 0) return info=psb_success_ call psb_erractionsave(err_act) asum=0.0 ictxt=desc_a%get_context() call psb_info(ictxt, me, np) if (np == -1) then info = psb_err_context_error_ call psb_errpush(info,name) goto 9999 endif ix = 1 jx = 1 m = desc_a%get_global_rows() ! check vector correctness call psb_chkvect(m,1,size(x),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 ((m /= 0)) then if(desc_a%get_local_rows() > 0) then asum=sasum(desc_a%get_local_rows(),x,ione) ! 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) asum = asum - (real(ndm-1)/real(ndm))*abs(x(idx)) end do ! compute global sum call psb_sum(ictxt,asum) else asum=0.0 ! compute global sum call psb_sum(ictxt, asum) end if else asum=0.0 end if res = asum call psb_erractionrestore(err_act) return 9999 continue call psb_erractionrestore(err_act) if (err_act == psb_act_abort_) then call psb_error(ictxt) return end if return end subroutine psb_sasumvs