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191 lines
6.1 KiB
Fortran
191 lines
6.1 KiB
Fortran
!!$
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!!$ Parallel Sparse BLAS v2.0
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!!$ (C) Copyright 2006 Salvatore Filippone University of Rome Tor Vergata
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!!$ Alfredo Buttari University of Rome Tor Vergata
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!!$
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!!$ Redistribution and use in source and binary forms, with or without
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!!$ modification, are permitted provided that the following conditions
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!!$ are met:
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!!$ 1. Redistributions of source code must retain the above copyright
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!!$ notice, this list of conditions and the following disclaimer.
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!!$ 2. Redistributions in binary form must reproduce the above copyright
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!!$ notice, this list of conditions, and the following disclaimer in the
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!!$ documentation and/or other materials provided with the distribution.
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!!$ 3. The name of the PSBLAS group or the names of its contributors may
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!!$ not be used to endorse or promote products derived from this
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!!$ software without specific written permission.
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!!$
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!!$ THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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!!$ ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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!!$ TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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!!$ PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE PSBLAS GROUP OR ITS CONTRIBUTORS
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!!$ BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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!!$ CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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!!$ SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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!!$ INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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!!$ CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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!!$ ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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!!$ POSSIBILITY OF SUCH DAMAGE.
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!!$
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!!$
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! File: psb_zcsrp.f90
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!
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! Subroutine: psb_zcsrp
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! Apply a right permutation to a sparse matrix, i.e. permute the column
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! indices.
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!
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! Parameters:
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! trans - character. Whether iperm or its transpose should be applied
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! iperm - integer, pointer, dimension(:). A permutation vector; its size must be either N_ROW or N_COL
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! a - type(<psb_zspmat_type). The matrix to be permuted
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! desc_a - type(<psb_desc_type>). The communication descriptor.
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! info - integer. Eventually returns an error code
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subroutine psb_zcsrp(trans,iperm,a, desc_a, info)
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use psb_descriptor_type
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use psb_serial_mod
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use psb_const_mod
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use psb_penv_mod
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! implicit none
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interface
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subroutine zcsrp(trans,m,n,fida,descra,ia1,ia2,&
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& infoa,p,work,lwork,ierror)
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integer, intent(in) :: m, n, lwork
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integer, intent(out) :: ierror
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character, intent(in) :: trans
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complex(kind(1.d0)), intent(inout) :: work(*)
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integer, intent(in) :: p(*)
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integer, intent(inout) :: ia1(*), ia2(*), infoa(*)
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character, intent(in) :: fida*5, descra*11
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end subroutine zcsrp
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end interface
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interface isaperm
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logical function isaperm(n,ip)
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integer, intent(in) :: n
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integer, intent(inout) :: ip(*)
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end function isaperm
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end interface
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!...parameters....
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type(psb_zspmat_type), intent(inout) :: a
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type(psb_desc_type), intent(in) :: desc_a
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integer, intent(inout) :: iperm(:), info
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character, intent(in) :: trans
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!....locals....
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integer, allocatable :: ipt(:)
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integer :: i,np,me, n_col,l_dcsdp, ipsize
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integer :: dectype
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real(kind(1.d0)), allocatable :: work_dcsdp(:)
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integer :: ictxt,n_row,err_act, int_err(5)
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character(len=20) :: name, char_err
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real(kind(1.d0)) :: time(10)
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logical, parameter :: debug=.false.
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time(1) = psb_wtime()
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ictxt = psb_cd_get_context(desc_a)
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dectype = psb_cd_get_dectype(desc_a)
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n_row = psb_cd_get_local_rows(desc_a)
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n_col = psb_cd_get_local_cols(desc_a)
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if(psb_get_errstatus() /= 0) return
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info=0
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call psb_erractionsave(err_act)
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name = 'psd_csrp'
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! check on blacs grid
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call psb_info(ictxt, me, np)
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if (np == -1) then
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info = 2010
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call psb_errpush(info,name)
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goto 9999
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endif
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if (.not.psb_is_asb_desc(desc_a)) then
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info = 600
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int_err(1) = dectype
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call psb_errpush(info,name,int_err)
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goto 9999
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endif
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ipsize = size(iperm)
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if (.not.((ipsize == n_col).or.(ipsize == n_row) )) then
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info = 35
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int_err(1) = 1
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int_err(2) = ipsize
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call psb_errpush(info,name,int_err)
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goto 9999
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else
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if (.not.isaperm(ipsize,iperm)) then
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info = 70
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int_err(1) = 1
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call psb_errpush(info,name,int_err)
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goto 9999
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endif
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endif
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l_dcsdp = (n_col)
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call psb_realloc(l_dcsdp,work_dcsdp,info)
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call psb_realloc(n_col,ipt,info)
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if(info /= psb_no_err_) then
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info=4010
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char_err='psrealloc'
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call psb_errpush(info,name,a_err=char_err)
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goto 9999
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end if
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if (ipsize == n_col) then
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do i=1, n_col
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ipt(i) = iperm(i)
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enddo
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else
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do i=1, n_row
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ipt(i) = iperm(i)
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enddo
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do i=n_row+1,n_col
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ipt(i) = i
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enddo
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endif
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! crossed fingers.....
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! fix glob_to_loc/loc_to_glob mappings, then indices lists
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! hmm, maybe we should just move all of this onto a different level,
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! have a specialized subroutine, and do it in the solver context????
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if (debug) write(0,*) 'spasb: calling dcsrp',size(work_dcsdp)
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call zcsrp(trans,n_row,n_col,a%fida,a%descra,a%ia1,a%ia2,a%infoa,&
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& ipt,work_dcsdp,size(work_dcsdp),info)
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if(info /= psb_no_err_) then
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info=4010
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char_err='dcsrp'
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call psb_errpush(info,name,a_err=char_err)
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goto 9999
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end if
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deallocate(ipt,work_dcsdp)
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time(4) = psb_wtime()
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time(4) = time(4) - time(3)
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if (debug) then
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call psb_amx(ictxt, time(4))
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write (*, *) ' comm structs assembly: ', time(4)*1.d-3
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end if
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call psb_erractionrestore(err_act)
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return
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9999 continue
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call psb_erractionrestore(err_act)
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if (err_act == psb_act_abort_) then
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call psb_error()
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return
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end if
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return
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end subroutine psb_zcsrp
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