!!$ !!$ 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_glob_to_loc.f90 ! ! Subroutine: psb_glob_to_loc2 ! Performs global to local indexes translation ! ! Parameters: ! x - integer, dimension(:). Array containing the indices to be translated. ! y - integer, dimension(:). Array containing the translated indices. ! desc_a - type(). The communication descriptor. ! info - integer. Eventually returns an error code. ! iact - integer(optional). A character defining the behaviour of this subroutine when is found an index not belonging to the calling process ! subroutine psb_glob_to_loc2(x,y,desc_a,info,iact,owned) use psb_descriptor_type use psb_const_mod use psb_error_mod use psb_string_mod use psb_penv_mod use psi_mod implicit none !...parameters.... type(psb_desc_type), intent(in) :: desc_a integer, intent(in) :: x(:) integer, intent(out) :: y(:), info character, intent(in), optional :: iact logical, intent(in), optional :: owned !....locals.... integer :: n, i, tmp character :: act integer :: int_err(5), err_act real(kind(1.d0)) :: real_val logical :: owned_ integer, parameter :: zero=0 character(len=20) :: name if(psb_get_errstatus() /= 0) return info=0 name = 'glob_to_loc' call psb_erractionsave(err_act) if (present(iact)) then act=iact else act='I' endif act = toupper(act) if (present(owned)) then owned_=owned else owned_=.false. end if int_err=0 real_val = 0.d0 n = size(x) call psi_idx_cnv(n,x,y,desc_a,info,owned=owned_) select case(act) case('E','I') call psb_erractionrestore(err_act) return case('W') if ((info /= 0).or.(count(y(1:n)<0) >0)) then write(0,'("Error ",i5," in subroutine glob_to_loc")') info end if case('A') if ((info /= 0).or.(count(y(1:n)<0) >0)) then call psb_errpush(info,name) goto 9999 end if end select call psb_erractionrestore(err_act) return 9999 continue call psb_erractionrestore(err_act) if (err_act == psb_act_ret_) then return else call psb_error() end if return end subroutine psb_glob_to_loc2 !!$ !!$ 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_glob_to_loc ! Performs global to local indexes translation ! ! Parameters: ! x - integer, dimension(:). Array containing the indices to be translated. ! desc_a - type(). The communication descriptor. ! info - integer. Eventually returns an error code. ! iact - integer(optional). A character defining the behaviour of this subroutine when is found an index not belonging to the calling process ! subroutine psb_glob_to_loc(x,desc_a,info,iact,owned) use psb_penv_mod use psb_descriptor_type use psb_const_mod use psb_error_mod use psb_string_mod use psi_mod implicit none !...parameters.... type(psb_desc_type), intent(in) :: desc_a integer, intent(inout) :: x(:) integer, intent(out) :: info logical, intent(in), optional :: owned character, intent(in), optional :: iact !....locals.... integer :: n, i, tmp, nk, key, idx, ih, nh, lb, ub, lm character :: act integer :: int_err(5), err_act, dectype real(kind(1.d0)) :: real_val, t0, t1,t2 logical :: owned_ integer, parameter :: zero=0 character(len=20) :: name integer :: ictxt, iam, np if(psb_get_errstatus() /= 0) return info=0 name = 'glob_to_loc' ictxt = desc_a%matrix_data(psb_ctxt_) call psb_info(ictxt,iam,np) call psb_erractionsave(err_act) dectype = desc_a%matrix_data(psb_dec_type_) if (present(iact)) then act=iact else act='I' endif if (present(owned)) then owned_=owned else owned_=.false. end if act = toupper(act) n = size(x) call psi_idx_cnv(n,x,desc_a,info,owned=owned_) select case(act) case('E','I') call psb_erractionrestore(err_act) return case('W') if ((info /= 0).or.(count(x(1:n)<0) >0)) then write(0,'("Error ",i5," in subroutine glob_to_loc")') info end if case('A') if ((info /= 0).or.(count(x(1:n)<0) >0)) then write(0,*) count(x(1:n)<0) call psb_errpush(info,name) goto 9999 end if end select call psb_erractionrestore(err_act) return 9999 continue call psb_erractionrestore(err_act) if (err_act == psb_act_ret_) then return else call psb_error() end if return contains subroutine inlbsrch(ipos,key,n,v) implicit none integer ipos, key, n integer v(n) integer lb, ub, m lb = 1 ub = n ipos = -1 do if (lb > ub) return m = (lb+ub)/2 if (key.eq.v(m)) then ipos = m return else if (key.lt.v(m)) then ub = m-1 else lb = m + 1 end if enddo return end subroutine inlbsrch subroutine inner_cnv(n,x,hashsize,hashmask,hashv,glb_lc) integer :: n, hashsize,hashmask,x(:), hashv(0:),glb_lc(:,:) integer :: i, ih, key, idx,nh,tmp,lb,ub,lm do i=1, n key = x(i) ih = iand(key,hashmask) idx = hashv(ih) nh = hashv(ih+1) - hashv(ih) if (nh > 0) then tmp = -1 lb = idx ub = idx+nh-1 do if (lb>ub) exit lm = (lb+ub)/2 if (key==glb_lc(lm,1)) then tmp = lm exit else if (key 0) then x(i) = glb_lc(tmp,2) else x(i) = tmp end if end do end subroutine inner_cnv end subroutine psb_glob_to_loc