!!$ !!$ 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_ddot.f90 ! ! Function: psb_ddot ! psb_ddot forms the dot product of two distributed vectors, ! ! dot := sub( X )**T * sub( Y ) ! ! where sub( X ) denotes X(:,JX) ! ! sub( Y ) denotes Y(:,JY). ! ! Arguments: ! x(:,:) - real The input vector containing the entries of ( X ). ! y(:,:) - real The input vector containing the entries of ( Y ). ! desc_a - type(psb_desc_type). The communication descriptor. ! info - integer. Return code ! jx - integer(optional). The column offset for sub( X ). ! jy - integer(optional). The column offset for sub( Y ). ! function psb_ddot_vect(x, y, desc_a,info) result(res) use psb_descriptor_type use psb_d_base_mat_mod use psb_check_mod use psb_error_mod use psb_penv_mod use psb_d_vect_mod use psb_d_psblas_mod, psb_protect_name => psb_ddot_vect implicit none real(psb_dpk_) :: res type(psb_d_vect_type), intent(inout) :: x, y type(psb_desc_type), intent(in) :: desc_a integer(psb_ipk_), intent(out) :: info ! locals integer(psb_ipk_) :: ictxt, np, me, idx, ndm,& & err_act, iix, jjx, ix, ijx, iy, ijy, iiy, jjy, i, m, nr real(psb_dpk_) :: dot_local real(psb_dpk_) :: ddot character(len=20) :: name, ch_err name='psb_ddot' res = dzero if (psb_errstatus_fatal()) return info=psb_success_ call psb_erractionsave(err_act) ictxt=desc_a%get_context() call psb_info(ictxt, me, np) if (np == -ione) 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 (.not.allocated(y%v)) then info = psb_err_invalid_vect_state_ call psb_errpush(info,name) goto 9999 endif ix = ione ijx = ione iy = ione ijy = ione m = desc_a%get_global_rows() ! check vector correctness call psb_chkvect(m,ione,x%get_nrows(),ix,ijx,desc_a,info,iix,jjx) if (info == psb_success_) & & call psb_chkvect(m,ione,y%get_nrows(),iy,ijy,desc_a,info,iiy,jjy) 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 /= ione).or.(iiy /= ione)) then info=psb_err_ix_n1_iy_n1_unsupported_ call psb_errpush(info,name) goto 9999 end if if(m /= 0) then nr = desc_a%get_local_rows() if(nr > 0) then dot_local = x%dot(nr,y) !!$ ! adjust dot_local 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) !!$ dot_local = dot_local - (real(ndm-1)/real(ndm))*(x(idx)*y(idx)) !!$ end do else dot_local=dzero end if else dot_local=dzero end if ! compute global sum call psb_sum(ictxt, dot_local) res = dot_local 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_ddot_vect function psb_ddot(x, y,desc_a, info, jx, jy) use psb_descriptor_type use psb_check_mod use psb_error_mod use psb_penv_mod implicit none real(psb_dpk_), intent(in) :: x(:,:), y(:,:) type(psb_desc_type), intent(in) :: desc_a integer(psb_ipk_), intent(in), optional :: jx, jy integer(psb_ipk_), intent(out) :: info real(psb_dpk_) :: psb_ddot ! locals integer(psb_ipk_) :: ictxt, np, me, idx, ndm,& & err_act, iix, jjx, ix, ijx, iy, ijy, iiy, jjy, i, m, nr real(psb_dpk_) :: dot_local real(psb_dpk_) :: ddot character(len=20) :: name, ch_err name='psb_ddot' if (psb_errstatus_fatal()) return info=psb_success_ call psb_erractionsave(err_act) ictxt=desc_a%get_context() call psb_info(ictxt, me, np) if (np == -ione) then info = psb_err_context_error_ call psb_errpush(info,name) goto 9999 endif ix = ione if (present(jx)) then ijx = jx else ijx = ione endif iy = ione if (present(jy)) then ijy = jy else ijy = ione endif if(ijx /= ijy) then info=3050 call psb_errpush(info,name) goto 9999 end if m = desc_a%get_global_rows() ! check vector correctness call psb_chkvect(m,ione,size(x,1),ix,ijx,desc_a,info,iix,jjx) if (info == psb_success_) & & call psb_chkvect(m,ione,size(y,1),iy,ijy,desc_a,info,iiy,jjy) 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 /= ione).or.(iiy /= ione)) then info=psb_err_ix_n1_iy_n1_unsupported_ call psb_errpush(info,name) goto 9999 end if if(m /= 0) then nr = desc_a%get_local_rows() if(nr > 0) then dot_local = ddot(nr, x(iix:,jjx),ione,y(iiy:,jjy),ione) ! adjust dot_local 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) dot_local = dot_local - (real(ndm-1)/real(ndm))*(x(idx,jjx)*y(idx,jjy)) end do else dot_local=0.d0 end if else dot_local=0.d0 end if ! compute global sum call psb_sum(ictxt, dot_local) psb_ddot = dot_local 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_ddot !!$ !!$ 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_ddotv ! psb_ddotv forms the dot product of two distributed vectors, ! ! dot := X**T * Y ! ! Arguments: ! x(:) - real The input vector containing the entries of X. ! y(:) - real The input vector containing the entries of Y. ! desc_a - type(psb_desc_type). The communication descriptor. ! info - integer. Return code ! function psb_ddotv(x, y,desc_a, info) use psb_descriptor_type use psb_check_mod use psb_error_mod use psb_penv_mod implicit none real(psb_dpk_), intent(in) :: x(:), y(:) type(psb_desc_type), intent(in) :: desc_a integer(psb_ipk_), intent(out) :: info real(psb_dpk_) :: psb_ddotv ! locals integer(psb_ipk_) :: ictxt, np, me, idx, ndm,& & err_act, iix, jjx, ix, jx, iy, jy, iiy, jjy, i, m, nr real(psb_dpk_) :: dot_local real(psb_dpk_) :: ddot character(len=20) :: name, ch_err name='psb_ddot' if (psb_errstatus_fatal()) return info=psb_success_ call psb_erractionsave(err_act) ictxt=desc_a%get_context() call psb_info(ictxt, me, np) if (np == -ione) then info = psb_err_context_error_ call psb_errpush(info,name) goto 9999 endif ix = ione iy = ione jx = ione jy = ione m = desc_a%get_global_rows() ! check vector correctness call psb_chkvect(m,ione,size(x,1),ix,jx,desc_a,info,iix,jjx) if (info == psb_success_) & & call psb_chkvect(m,ione,size(y,1),iy,jy,desc_a,info,iiy,jjy) 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 /= ione).or.(iiy /= ione)) then info=psb_err_ix_n1_iy_n1_unsupported_ call psb_errpush(info,name) goto 9999 end if if(m /= 0) then nr = desc_a%get_local_rows() if(nr > 0) then dot_local = ddot(nr, x,ione,y,ione) ! adjust dot_local 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) dot_local = dot_local - (real(ndm-1)/real(ndm))*(x(idx)*y(idx)) end do else dot_local=0.d0 end if else dot_local=0.d0 end if ! compute global sum call psb_sum(ictxt, dot_local) psb_ddotv = dot_local 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_ddotv !!$ !!$ 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_ddotvs ! psb_ddotvs forms the dot product of two distributed vectors, ! ! dot := X**T * Y ! ! Arguments: ! res - real The result. ! x(:) - real The input vector containing the entries of X. ! y(:) - real The input vector containing the entries of Y. ! desc_a - type(psb_desc_type). The communication descriptor. ! info - integer. Return code ! subroutine psb_ddotvs(res, x, y,desc_a, info) use psb_base_mod, psb_protect_name => psb_ddotvs implicit none real(psb_dpk_), intent(in) :: x(:), y(:) real(psb_dpk_), intent(out) :: res type(psb_desc_type), intent(in) :: desc_a integer(psb_ipk_), intent(out) :: info ! locals integer(psb_ipk_) :: ictxt, np, me, idx, ndm,& & err_act, iix, jjx, ix, iy, iiy, jjy, i, m, nr real(psb_dpk_) :: dot_local real(psb_dpk_) :: ddot character(len=20) :: name, ch_err name='psb_ddot' if (psb_errstatus_fatal()) return info=psb_success_ call psb_erractionsave(err_act) ictxt=desc_a%get_context() call psb_info(ictxt, me, np) if (np == -ione) then info = psb_err_context_error_ call psb_errpush(info,name) goto 9999 endif ix = ione iy = ione m = desc_a%get_global_rows() ! check vector correctness call psb_chkvect(m,ione,size(x,1),ix,ix,desc_a,info,iix,jjx) if (info == psb_success_) & & call psb_chkvect(m,ione,size(y,1),iy,iy,desc_a,info,iiy,jjy) 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 /= ione).or.(iiy /= ione)) then info=psb_err_ix_n1_iy_n1_unsupported_ call psb_errpush(info,name) goto 9999 end if if(m /= 0) then nr = desc_a%get_local_rows() if(nr > 0) then dot_local = ddot(nr, x,ione,y,ione) ! adjust dot_local 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) dot_local = dot_local - (real(ndm-1)/real(ndm))*(x(idx)*y(idx)) end do else dot_local=0.d0 end if else dot_local=0.d0 end if ! compute global sum call psb_sum(ictxt, dot_local) res = dot_local 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_ddotvs !!$ !!$ 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_dmdots ! psb_dmdots forms the dot product of multiple distributed vectors, ! ! res(i) := ( X(:,i) )**T * ( Y(:,i) ) ! ! Arguments: ! res(:) - real. The result. ! x(:,:) - real The input vector containing the entries of ( X ). ! y(:,:) - real The input vector containing the entries of ( Y ). ! desc_a - type(psb_desc_type). The communication descriptor. ! info - integer. Return code ! subroutine psb_dmdots(res, x, y, desc_a, info) use psb_base_mod, psb_protect_name => psb_dmdots implicit none real(psb_dpk_), intent(in) :: x(:,:), y(:,:) real(psb_dpk_), intent(out) :: res(:) type(psb_desc_type), intent(in) :: desc_a integer(psb_ipk_), intent(out) :: info ! locals integer(psb_ipk_) :: ictxt, np, me, idx, ndm,& & err_act, iix, jjx, ix, iy, iiy, jjy, i, m, j, k, nr real(psb_dpk_),allocatable :: dot_local(:) real(psb_dpk_) :: ddot character(len=20) :: name, ch_err name='psb_dmdots' if (psb_errstatus_fatal()) return info=psb_success_ call psb_erractionsave(err_act) ictxt=desc_a%get_context() call psb_info(ictxt, me, np) if (np == -ione) then info = psb_err_context_error_ call psb_errpush(info,name) goto 9999 endif ix = ione iy = ione m = desc_a%get_global_rows() ! check vector correctness call psb_chkvect(m,ione,size(x,1),ix,ix,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 call psb_chkvect(m,ione,size(y,1),iy,iy,desc_a,info,iiy,jjy) 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 ((ix /= ione).or.(iy /= ione)) then info=psb_err_ix_n1_iy_n1_unsupported_ call psb_errpush(info,name) goto 9999 end if k = min(size(x,2),size(y,2)) allocate(dot_local(k)) if(m /= 0) then nr = desc_a%get_local_rows() if(nr > 0) then do j=1,k dot_local(j) = ddot(nr,x(1:,j),ione,y(1:,j),ione) ! adjust dot_local because overlapped elements are computed more than once end do do i=1,size(desc_a%ovrlap_elem,1) idx = desc_a%ovrlap_elem(i,1) ndm = desc_a%ovrlap_elem(i,2) dot_local(1:k) = dot_local(1:k) - (real(ndm-1)/real(ndm))*(x(idx,1:k)*y(idx,1:k)) end do else dot_local(:)=0.d0 end if else dot_local(:)=0.d0 end if ! compute global sum call psb_sum(ictxt, dot_local(1:k)) res(1:k) = dot_local(1:k) 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_dmdots