!!$ !!$ 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. !!$ !!$ ! File: psb_sdot.f90 ! ! Function: psb_sdot ! psb_sdot 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_sdot(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_spk_), intent(in) :: x(:,:), y(:,:) type(psb_desc_type), intent(in) :: desc_a integer, intent(in), optional :: jx, jy integer, intent(out) :: info real(psb_spk_) :: psb_sdot ! locals integer :: ictxt, np, me, idx, ndm,& & err_act, iix, jjx, ix, ijx, iy, ijy, iiy, jjy, i, m real(psb_spk_) :: dot_local real(psb_spk_) :: sdot character(len=20) :: name, ch_err name='psb_sdot' if(psb_get_errstatus() /= 0) return info=0 call psb_erractionsave(err_act) ictxt=psb_cd_get_context(desc_a) call psb_info(ictxt, me, np) if (np == -ione) then info = 2010 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 = psb_cd_get_global_rows(desc_a) ! check vector correctness call psb_chkvect(m,ione,size(x,1),ix,ijx,desc_a,info,iix,jjx) if (info == 0) & & call psb_chkvect(m,ione,size(y,1),iy,ijy,desc_a,info,iiy,jjy) if(info /= 0) then info=4010 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=3040 call psb_errpush(info,name) goto 9999 end if if(m /= 0) then if(psb_cd_get_local_rows(desc_a) > 0) then dot_local = sdot(psb_cd_get_local_rows(desc_a),& & 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=0.0 end if else dot_local=0.0 end if ! compute global sum call psb_sum(ictxt, dot_local) psb_sdot = 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_sdot !!$ !!$ 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. !!$ !!$ ! ! Function: psb_sdotv ! psb_sdotv 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_sdotv(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_spk_), intent(in) :: x(:), y(:) type(psb_desc_type), intent(in) :: desc_a integer, intent(out) :: info real(psb_spk_) :: psb_sdotv ! locals integer :: ictxt, np, me, idx, ndm,& & err_act, iix, jjx, ix, jx, iy, jy, iiy, jjy, i, m real(psb_spk_) :: dot_local real(psb_spk_) :: sdot character(len=20) :: name, ch_err name='psb_sdot' if(psb_get_errstatus() /= 0) return info=0 call psb_erractionsave(err_act) ictxt=psb_cd_get_context(desc_a) call psb_info(ictxt, me, np) if (np == -ione) then info = 2010 call psb_errpush(info,name) goto 9999 endif ix = ione iy = ione jx = ione jy = ione m = psb_cd_get_global_rows(desc_a) ! check vector correctness call psb_chkvect(m,ione,size(x,1),ix,jx,desc_a,info,iix,jjx) if (info == 0) & & call psb_chkvect(m,ione,size(y,1),iy,jy,desc_a,info,iiy,jjy) if(info /= 0) then info=4010 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=3040 call psb_errpush(info,name) goto 9999 end if if(m /= 0) then if(psb_cd_get_local_rows(desc_a) > 0) then dot_local = sdot(psb_cd_get_local_rows(desc_a),& & 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=0.0 end if else dot_local=0.0 end if ! compute global sum call psb_sum(ictxt, dot_local) psb_sdotv = 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_sdotv !!$ !!$ 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_sdotvs ! psb_sdotvs 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_sdotvs(res, 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_spk_), intent(in) :: x(:), y(:) real(psb_spk_), intent(out) :: res type(psb_desc_type), intent(in) :: desc_a integer, intent(out) :: info ! locals integer :: ictxt, np, me, idx, ndm,& & err_act, iix, jjx, ix, iy, iiy, jjy, i, m real(psb_spk_) :: dot_local real(psb_spk_) :: sdot character(len=20) :: name, ch_err name='psb_sdot' if(psb_get_errstatus() /= 0) return info=0 call psb_erractionsave(err_act) ictxt=psb_cd_get_context(desc_a) call psb_info(ictxt, me, np) if (np == -ione) then info = 2010 call psb_errpush(info,name) goto 9999 endif ix = ione iy = ione m = psb_cd_get_global_rows(desc_a) ! check vector correctness call psb_chkvect(m,ione,size(x,1),ix,ix,desc_a,info,iix,jjx) if (info == 0) & & call psb_chkvect(m,ione,size(y,1),iy,iy,desc_a,info,iiy,jjy) if(info /= 0) then info=4010 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=3040 call psb_errpush(info,name) goto 9999 end if if(m /= 0) then if(psb_cd_get_local_rows(desc_a) > 0) then dot_local = sdot(psb_cd_get_local_rows(desc_a),& & 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=0.0 end if else dot_local=0.0 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_sdotvs !!$ !!$ 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_smdots ! psb_smdots 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_smdots(res, 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_spk_), intent(in) :: x(:,:), y(:,:) real(psb_spk_), intent(out) :: res(:) type(psb_desc_type), intent(in) :: desc_a integer, intent(out) :: info ! locals integer :: ictxt, np, me, idx, ndm,& & err_act, iix, jjx, ix, iy, iiy, jjy, i, m, j, k real(psb_spk_),allocatable :: dot_local(:) real(psb_spk_) :: sdot character(len=20) :: name, ch_err name='psb_smdots' if(psb_get_errstatus() /= 0) return info=0 call psb_erractionsave(err_act) ictxt=psb_cd_get_context(desc_a) call psb_info(ictxt, me, np) if (np == -ione) then info = 2010 call psb_errpush(info,name) goto 9999 endif ix = ione iy = ione m = psb_cd_get_global_rows(desc_a) ! check vector correctness call psb_chkvect(m,ione,size(x,1),ix,ix,desc_a,info,iix,jjx) if(info /= 0) then info=4010 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 /= 0) then info=4010 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=3040 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 if(psb_cd_get_local_rows(desc_a) > 0) then do j=1,k dot_local(j) = sdot(psb_cd_get_local_rows(desc_a),& & 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(:)=0.0 end if else dot_local(:)=0.0 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_smdots