! ! Parallel Sparse BLAS version 3.5 ! (C) Copyright 2006-2018 ! Salvatore Filippone ! Alfredo Buttari ! ! 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_zamax.f90 ! ! Function: psb_zamax ! Computes the maximum absolute value of X ! ! normi := max(abs(sub(X)(i)) ! ! where sub( X ) denotes X(1:N,JX:). ! ! Arguments: ! x(:,:) - complex The input vector. ! desc_a - type(psb_desc_type). The communication descriptor. ! info - integer. Return code ! jx - integer(optional). The column offset. ! function psb_zamax(x,desc_a, info, jx,global) result(res) use psb_base_mod, psb_protect_name => psb_zamax implicit none complex(psb_dpk_), 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_dpk_) :: res logical, intent(in), optional :: global ! locals integer(psb_ipk_) :: ictxt, np, me,& & err_act, iix, jjx, ldx integer(psb_lpk_) :: ix, ijx, iy, ijy, m logical :: global_ character(len=20) :: name, ch_err name='psb_zamax' info=psb_success_ call psb_erractionsave(err_act) if (psb_errstatus_fatal()) then info = psb_err_internal_error_ ; goto 9999 end if 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 if (present(global)) then global_ = global else global_ = .true. end if m = desc_a%get_global_rows() ldx = size(x,1) call psb_chkvect(m,lone,ldx,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 ((desc_a%get_local_rows() > 0).and.(m /= 0)) then res = psb_amax(desc_a%get_local_rows()-iix+1,x(:,jjx)) else res = dzero end if ! compute global max if (global_) call psb_amx(ictxt, res) call psb_erractionrestore(err_act) return 9999 call psb_error_handler(ictxt,err_act) return end function psb_zamax !!$ !!$ Parallel Sparse BLAS version 3.5 !!$ (C) Copyright 2006-2018 !!$ Salvatore Filippone University of Rome Tor Vergata !!$ Alfredo Buttari !!$ !!$ 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_zamaxv ! Computes the maximum absolute value of X. ! ! normi := max(abs(X(i)) ! ! Arguments: ! x(:) - complex The input vector. ! desc_a - type(psb_desc_type). The communication descriptor. ! info - integer. Return code ! function psb_zamaxv (x,desc_a, info,global) result(res) use psb_base_mod, psb_protect_name => psb_zamaxv implicit none complex(psb_dpk_), intent(in) :: x(:) type(psb_desc_type), intent(in) :: desc_a integer(psb_ipk_), intent(out) :: info real(psb_dpk_) :: res logical, intent(in), optional :: global ! locals integer(psb_ipk_) :: ictxt, np, me,& & err_act, iix, jjx, ldx integer(psb_lpk_) :: ix, jx, iy, ijy, m logical :: global_ character(len=20) :: name, ch_err name='psb_zamaxv' info=psb_success_ call psb_erractionsave(err_act) if (psb_errstatus_fatal()) then info = psb_err_internal_error_ ; goto 9999 end if 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 (present(global)) then global_ = global else global_ = .true. end if ix = 1 jx = 1 m = desc_a%get_global_rows() ldx = size(x,1) call psb_chkvect(m,lone,ldx,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 res = psb_amax(desc_a%get_local_rows()-iix+1,x) else res = dzero end if ! compute global max if (global_) call psb_amx(ictxt, res) call psb_erractionrestore(err_act) return 9999 call psb_error_handler(ictxt,err_act) return end function psb_zamaxv ! ! Function: psb_zamax_vect ! Computes the maximum absolute value of X. ! ! normi := max(abs(X(i)) ! ! Arguments: ! x - type(psb_z_vect_type) The input vector. ! desc_a - type(psb_desc_type). The communication descriptor. ! info - integer. Return code ! function psb_zamax_vect(x, desc_a, info,global) result(res) use psb_penv_mod use psb_serial_mod use psb_desc_mod use psb_check_mod use psb_error_mod use psb_z_vect_mod implicit none real(psb_dpk_) :: res type(psb_z_vect_type), intent (inout) :: x type(psb_desc_type), intent (in) :: desc_a integer(psb_ipk_), intent(out) :: info logical, intent(in), optional :: global ! locals integer(psb_ipk_) :: ictxt, np, me,& & err_act, iix, jjx integer(psb_lpk_) :: ix, jx, iy, ijy, m logical :: global_ character(len=20) :: name, ch_err name='psb_zamaxv' info=psb_success_ call psb_erractionsave(err_act) if (psb_errstatus_fatal()) then info = psb_err_internal_error_ ; goto 9999 end if 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 if (present(global)) then global_ = global else global_ = .true. end if ix = 1 jx = 1 m = desc_a%get_global_rows() call psb_chkvect(m,lone,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 res = x%amax(desc_a%get_local_rows()) else res = dzero end if ! compute global max if (global_) call psb_amx(ictxt, res) call psb_erractionrestore(err_act) return 9999 call psb_error_handler(ictxt,err_act) return end function psb_zamax_vect !!$ !!$ Parallel Sparse BLAS version 3.5 !!$ (C) Copyright 2006-2018 !!$ Salvatore Filippone University of Rome Tor Vergata !!$ Alfredo Buttari !!$ !!$ 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_zamaxvs ! Computes the maximum absolute value of X, subroutine version ! ! normi := max(abs(sub(X)(i)) ! ! where sub( X ) denotes X(1:N). ! ! Arguments: ! res - real The result. ! x(:) - complex The input vector. ! desc_a - type(psb_desc_type). The communication descriptor. ! jx - integer(optional). The column offset. ! subroutine psb_zamaxvs(res,x,desc_a, info,global) use psb_base_mod, psb_protect_name => psb_zamaxvs implicit none complex(psb_dpk_), intent(in) :: x(:) type(psb_desc_type), intent(in) :: desc_a integer(psb_ipk_), intent(out) :: info real(psb_dpk_), intent(out) :: res logical, intent(in), optional :: global ! locals integer(psb_ipk_) :: ictxt, np, me,& & err_act, iix, jjx, ldx integer(psb_lpk_) :: ix, ijx, iy, ijy, m logical :: global_ character(len=20) :: name, ch_err name='psb_zamaxvs' info=psb_success_ call psb_erractionsave(err_act) if (psb_errstatus_fatal()) then info = psb_err_internal_error_ ; goto 9999 end if 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 (present(global)) then global_ = global else global_ = .true. end if ix = 1 ijx=1 m = desc_a%get_global_rows() ldx=size(x,1) call psb_chkvect(m,lone,ldx,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 ((desc_a%get_local_rows() > 0).and.(m /= 0)) then res = psb_amax(desc_a%get_local_rows()-iix+1,x) else res = dzero end if ! compute global max if (global_) call psb_amx(ictxt, res) call psb_erractionrestore(err_act) return 9999 call psb_error_handler(ictxt,err_act) return end subroutine psb_zamaxvs !!$ !!$ Parallel Sparse BLAS version 3.5 !!$ (C) Copyright 2006-2018 !!$ Salvatore Filippone University of Rome Tor Vergata !!$ Alfredo Buttari !!$ !!$ 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_zmamaxs ! Searches the absolute max of X. ! ! normi := max(abs(X(i)) ! ! Arguments: ! res(:) - real. The result. ! x(:,:) - complex The input vector. ! desc_a - type(psb_desc_type). The communication descriptor. ! info - integer. Return code ! subroutine psb_zmamaxs(res,x,desc_a, info,jx,global) use psb_base_mod, psb_protect_name => psb_zmamaxs implicit none complex(psb_dpk_), 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_dpk_), intent(out) :: res(:) logical, intent(in), optional :: global ! locals integer(psb_ipk_) :: ictxt, np, me,& & err_act, iix, jjx, ldx, i, k integer(psb_lpk_) :: ix, ijx, iy, ijy, m logical :: global_ character(len=20) :: name, ch_err name='psb_zmamaxs' info=psb_success_ call psb_erractionsave(err_act) if (psb_errstatus_fatal()) then info = psb_err_internal_error_ ; goto 9999 end if 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 if (present(global)) then global_ = global else global_ = .true. end if m = desc_a%get_global_rows() k = min(size(x,2),size(res,1)) ldx = size(x,1) call psb_chkvect(m,lone,ldx,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 res(1:k) = dzero ! compute local max if ((desc_a%get_local_rows() > 0).and.(m /= 0)) then do i=1,k res(i) = psb_amax(desc_a%get_local_rows()-iix+1,x(:,jjx+i-1)) end do end if ! compute global max if (global_) call psb_amx(ictxt, res(1:k)) call psb_erractionrestore(err_act) return 9999 call psb_error_handler(ictxt,err_act) return end subroutine psb_zmamaxs