!!$ !!$ Parallel Sparse BLAS v2.0 !!$ (C) Copyright 2006 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_zdot.f90 ! ! Function: psb_zdot ! psb_zdot 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). ! ! Parameters: ! x - real,dimension(:,:). The input vector containing the entries of sub( X ). ! y - real,dimension(:,:). The input vector containing the entries of sub( Y ). ! desc_a - type(). The communication descriptor. ! info - integer. Eventually returns an error code. ! jx - integer(optional). The column offset for sub( X ). ! jy - integer(optional). The column offset for sub( Y ). ! function psb_zdot(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 complex(kind(1.d0)), intent(in) :: x(:,:), y(:,:) type(psb_desc_type), intent(in) :: desc_a integer, intent(in), optional :: jx, jy integer, intent(out) :: info complex(kind(1.D0)) :: psb_zdot ! locals integer :: ictxt, np, me,& & err_act, n, iix, jjx, ix, ijx, iy, ijy, iiy, jjy, i, m, j, k complex(kind(1.D0)) :: dot_local complex(kind(1.d0)) :: zdotc character(len=20) :: name, ch_err name='psb_zdot' if(psb_get_errstatus().ne.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.ne.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.ne.0) then info=4010 ch_err='psb_chkvect' call psb_errpush(info,name,a_err=ch_err) goto 9999 end if if ((iix.ne.ione).or.(iiy.ne.ione)) then info=3040 call psb_errpush(info,name) goto 9999 end if if(m.ne.0) then if(psb_cd_get_local_rows(desc_a).gt.0) then dot_local = zdotc(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 i=1 do while (desc_a%ovrlap_elem(i).ne.-ione) dot_local = dot_local -& & (desc_a%ovrlap_elem(i+1)-1)/desc_a%ovrlap_elem(i+1)*& & conjg(x(iix+desc_a%ovrlap_elem(i)-1,jjx))*& & y(iiy+desc_a%ovrlap_elem(i)-1,jjy) i = i+2 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_zdot = dot_local call psb_erractionrestore(err_act) return 9999 continue call psb_erractionrestore(err_act) if (err_act.eq.psb_act_abort_) then call psb_error(ictxt) return end if return end function psb_zdot !!$ !!$ Parallel Sparse BLAS v2.0 !!$ (C) Copyright 2006 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_zdotv ! psb_zdot forms the dot product of two distributed vectors, ! ! dot := X**T * Y ! ! Parameters: ! x - real,dimension(:). The input vector containing the entries of X. ! y - real,dimension(:). The input vector containing the entries of Y. ! desc_a - type(). The communication descriptor. ! info - integer. Eventually returns an error code. ! function psb_zdotv(x, y,desc_a, info) use psb_descriptor_type use psb_check_mod use psb_error_mod use psb_penv_mod implicit none complex(kind(1.d0)), intent(in) :: x(:), y(:) type(psb_desc_type), intent(in) :: desc_a integer, intent(out) :: info complex(kind(1.D0)) :: psb_zdotv ! locals integer :: ictxt, np, me,& & err_act, n, iix, jjx, ix, jx, iy, jy, iiy, jjy, i, m, j, k complex(kind(1.D0)) :: dot_local complex(kind(1.d0)) :: zdotc character(len=20) :: name, ch_err name='psb_zdot' if(psb_get_errstatus().ne.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.ne.0) then info=4010 ch_err='psb_chkvect' call psb_errpush(info,name,a_err=ch_err) goto 9999 end if if ((iix.ne.ione).or.(iiy.ne.ione)) then info=3040 call psb_errpush(info,name) goto 9999 end if if(m.ne.0) then if(psb_cd_get_local_rows(desc_a).gt.0) then dot_local = zdotc(psb_cd_get_local_rows(desc_a),& & x,ione,y,ione) ! adjust dot_local because overlapped elements are computed more than once i=1 do while (desc_a%ovrlap_elem(i).ne.-ione) dot_local = dot_local -& & (desc_a%ovrlap_elem(i+1)-1)/desc_a%ovrlap_elem(i+1)*& & conjg(x(desc_a%ovrlap_elem(i)))*& & y(desc_a%ovrlap_elem(i)) i = i+2 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_zdotv = dot_local call psb_erractionrestore(err_act) return 9999 continue call psb_erractionrestore(err_act) if (err_act.eq.psb_act_abort_) then call psb_error(ictxt) return end if return end function psb_zdotv !!$ !!$ Parallel Sparse BLAS v2.0 !!$ (C) Copyright 2006 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_zdotvs ! psb_zdot forms the dot product of two distributed vectors, ! ! dot := X**T * Y ! ! Parameters: ! res - real. The result. ! x - real,dimension(:). The input vector containing the entries of X. ! y - real,dimension(:). The input vector containing the entries of Y. ! desc_a - type(). The communication descriptor. ! info - integer. Eventually returns an error code. ! subroutine psb_zdotvs(res, x, y,desc_a, info) use psb_descriptor_type use psb_check_mod use psb_error_mod use psb_penv_mod implicit none complex(kind(1.d0)), intent(in) :: x(:), y(:) complex(kind(1.d0)), intent(out) :: res type(psb_desc_type), intent(in) :: desc_a integer, intent(out) :: info ! locals integer :: ictxt, np, me,& & err_act, n, iix, jjx, ix, ijx, iy, ijy, iiy, jjy, i, m, j, k complex(kind(1.D0)) :: dot_local complex(kind(1.d0)) :: zdotc character(len=20) :: name, ch_err name='psb_zdot' if(psb_get_errstatus().ne.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.ne.0) then info=4010 ch_err='psb_chkvect' call psb_errpush(info,name,a_err=ch_err) goto 9999 end if if ((iix.ne.ione).or.(iiy.ne.ione)) then info=3040 call psb_errpush(info,name) goto 9999 end if if(m.ne.0) then if(psb_cd_get_local_rows(desc_a).gt.0) then dot_local = zdotc(psb_cd_get_local_rows(desc_a),& & x,ione,y,ione) ! adjust dot_local because overlapped elements are computed more than once i=1 do while (desc_a%ovrlap_elem(i).ne.-ione) dot_local = dot_local -& & (desc_a%ovrlap_elem(i+1)-1)/desc_a%ovrlap_elem(i+1)*& & conjg(x(desc_a%ovrlap_elem(i)))*& & y(desc_a%ovrlap_elem(i)) i = i+2 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.eq.psb_act_abort_) then call psb_error(ictxt) return end if return end subroutine psb_zdotvs !!$ !!$ Parallel Sparse BLAS v2.0 !!$ (C) Copyright 2006 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_dmdots ! psb_zdot 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). ! ! Parameters: ! res - real. The result. ! x - real,dimension(:,:). The input vector containing the entries of sub( X ). ! y - real,dimension(:,:). The input vector containing the entries of sub( Y ). ! desc_a - type(). The communication descriptor. ! info - integer. Eventually returns an error code. ! subroutine psb_zmdots(res, x, y, desc_a, info) use psb_descriptor_type use psb_check_mod use psb_error_mod use psb_penv_mod implicit none complex(kind(1.d0)), intent(in) :: x(:,:), y(:,:) complex(kind(1.d0)), intent(out) :: res(:) type(psb_desc_type), intent(in) :: desc_a integer, intent(out) :: info ! locals integer :: ictxt, np, me,& & err_act, n, iix, jjx, ix, ijx, iy, ijy, iiy, jjy, i, m, j, k complex(kind(1.d0)),allocatable :: dot_local(:) complex(kind(1.d0)) :: zdotc character(len=20) :: name, ch_err name='psb_zmdots' if(psb_get_errstatus().ne.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.ne.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.ne.0) then info=4010 ch_err='psb_chkvect' call psb_errpush(info,name,a_err=ch_err) goto 9999 end if if ((ix.ne.ione).or.(iy.ne.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.ne.0) then if(psb_cd_get_local_rows(desc_a).gt.0) then do j=1,k dot_local(j) = zdotc(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 i=1 do while (desc_a%ovrlap_elem(i).ne.-ione) dot_local(j) = dot_local(j) -& & (desc_a%ovrlap_elem(i+1)-1)/desc_a%ovrlap_elem(i+1)*& & conjg(x(desc_a%ovrlap_elem(i)-1,j))*& & y(desc_a%ovrlap_elem(i)-1,j) i = i+2 end do 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.eq.psb_act_abort_) then call psb_error(ictxt) return end if return end subroutine psb_zmdots