Changed interface to CDALL to use optional parameters, encompassing the
various versions existing so far.psblas3-type-indexed
Salvatore Filippone
18 years ago
parent
e59374bf6b
commit
ddb6b91cd8
@ -1,230 +0,0 @@
|
||||
!!$
|
||||
!!$ 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_cddec(nloc, ictxt, desc_a, info)
|
||||
|
||||
! Purpose
|
||||
! =======
|
||||
!
|
||||
! Allocate special descriptor for decoupled index space
|
||||
!
|
||||
!
|
||||
!
|
||||
! INPUT
|
||||
!======
|
||||
! NLOC : (Local Input) Integer
|
||||
! Number of local indices
|
||||
! required.
|
||||
!
|
||||
! ictxt : (Global Input)Integer BLACS context for an NPx1 grid
|
||||
! required.
|
||||
!
|
||||
! OUTPUT
|
||||
!=========
|
||||
! desc_a : TYPEDESC
|
||||
! desc_a OUTPUT FIELDS:
|
||||
!
|
||||
! MATRIX_DATA : Pointer to integer Array
|
||||
! contains some
|
||||
! local and global information about matrix:
|
||||
!
|
||||
! NOTATION STORED IN EXPLANATION
|
||||
! ------------ ---------------------- -------------------------------------
|
||||
! DEC_TYPE MATRIX_DATA[DEC_TYPE_] Decomposition type, temporarly is
|
||||
! setted to 1( matrix not yet assembled)
|
||||
! M MATRIX_DATA[M_] Total number of equations
|
||||
! N MATRIX_DATA[N_] Total number of variables
|
||||
! N_ROW MATRIX_DATA[N_ROW_] Number of local equations
|
||||
! N_COL MATRIX_DATA[N_COL_] Number of local columns (see below)
|
||||
! CTXT_A MATRIX_DATA[CTXT_] The BLACS context handle,
|
||||
! indicating
|
||||
! the global context of the operation
|
||||
! on the matrix.
|
||||
! The context itself is global.
|
||||
!
|
||||
! GLOB_TO_LOC Array of dimension equal to number of global
|
||||
! rows/cols (MATRIX_DATA[M_]). On exit,
|
||||
! for all global indices either:
|
||||
! 1. The index belongs to the current process; the entry
|
||||
! is set to the next free local row index.
|
||||
! 2. The index belongs to process P (0<=P<=NP-1); the entry
|
||||
! is set to
|
||||
! -(NP+P+1)
|
||||
!
|
||||
! LOC_TO_GLOB An array of dimension equal to number of local cols N_COL
|
||||
! i.e. all columns of the matrix such that there is at least
|
||||
! one nonzero entry within the local row range. At the time
|
||||
! this routine is called N_COL cannot be know, so we set
|
||||
! N_COL=N_ROW, and dimension this vector on N_ROW plus an
|
||||
! estimate. On exit the vector elements are set
|
||||
! to the index of the corresponding entry in GLOB_TO_LOC, or
|
||||
! to -1 for indices I>N_ROW.
|
||||
!
|
||||
!
|
||||
! HALO_INDEX Not touched here, as it depends on the matrix pattern
|
||||
!
|
||||
! OVRLAP_INDEX On exit from this routine, the overlap indices are stored in
|
||||
! triples (Proc, 1, Index), similar to the assembled format
|
||||
! but neither optimized, nor deadlock free.
|
||||
! List is terminated with -1
|
||||
!
|
||||
! OVRLAP_ELEM On exit from this routine, just a list of pairs (index,#p).
|
||||
! List is terminated with -1.
|
||||
!
|
||||
!
|
||||
! END OF desc_a OUTPUT FIELDS
|
||||
!
|
||||
!
|
||||
|
||||
use psb_descriptor_type
|
||||
use psb_serial_mod
|
||||
use psb_const_mod
|
||||
use psb_error_mod
|
||||
use psi_mod
|
||||
use psb_penv_mod
|
||||
implicit None
|
||||
!....Parameters...
|
||||
Integer, intent(in) :: nloc,ictxt
|
||||
integer, intent(out) :: info
|
||||
Type(psb_desc_type), intent(out) :: desc_a
|
||||
|
||||
!locals
|
||||
Integer :: i,j,np,me,err,n,itmpov, k,&
|
||||
& l_ov_ix,l_ov_el,idx, err_act,m, ip
|
||||
Integer :: INT_ERR(5), thalo(1), tovr(1)
|
||||
integer, allocatable :: nlv(:)
|
||||
logical, parameter :: debug=.false.
|
||||
character(len=20) :: name
|
||||
|
||||
if(psb_get_errstatus() /= 0) return
|
||||
info=0
|
||||
err=0
|
||||
name = 'psb_cddec'
|
||||
|
||||
call psb_info(ictxt, me, np)
|
||||
if (debug) write(*,*) 'psb_cdalll: ',np,me
|
||||
|
||||
n = nloc
|
||||
!... check nloc and n parameters....
|
||||
if (nloc < 1) then
|
||||
info = 10
|
||||
int_err(1) = 1
|
||||
int_err(2) = nloc
|
||||
else if (n < 1) then
|
||||
info = 10
|
||||
int_err(1) = 2
|
||||
int_err(2) = n
|
||||
endif
|
||||
|
||||
if (info /= 0) then
|
||||
call psb_errpush(info,name,i_err=int_err)
|
||||
goto 9999
|
||||
end if
|
||||
|
||||
if (debug) write(*,*) 'psb_cdall: doing global checks'
|
||||
!global check on m and n parameters
|
||||
|
||||
allocate(nlv(0:np-1))
|
||||
nlv(:) = 0
|
||||
nlv(me) = nloc
|
||||
|
||||
call psb_sum(ictxt,nlv(1:np))
|
||||
m = sum(nlv)
|
||||
|
||||
|
||||
|
||||
call psb_nullify_desc(desc_a)
|
||||
|
||||
|
||||
!count local rows number
|
||||
! allocate work vector
|
||||
!!$ allocate(desc_a%glob_to_loc(m),desc_a%matrix_data(psb_mdata_size_),&
|
||||
!!$ & desc_a%loc_to_glob(nloc),desc_a%lprm(1),&
|
||||
!!$ & desc_a%ovrlap_index(1),desc_a%ovrlap_elem(1),&
|
||||
!!$ & desc_a%halo_index(1),desc_a%bnd_elem(1),stat=info)
|
||||
allocate(desc_a%glob_to_loc(m),desc_a%matrix_data(psb_mdata_size_),&
|
||||
& desc_a%loc_to_glob(m),desc_a%lprm(1),stat=info)
|
||||
if (info /= 0) then
|
||||
info=2025
|
||||
int_err(1)=m
|
||||
call psb_errpush(info,name,i_err=int_err)
|
||||
goto 9999
|
||||
endif
|
||||
|
||||
|
||||
desc_a%matrix_data(psb_n_row_) = nloc
|
||||
desc_a%matrix_data(psb_n_col_) = nloc
|
||||
desc_a%matrix_data(psb_m_) = m
|
||||
desc_a%matrix_data(psb_n_) = m
|
||||
desc_a%matrix_data(psb_dec_type_) = psb_desc_bld_
|
||||
desc_a%matrix_data(psb_ctxt_) = ictxt
|
||||
call psb_get_mpicomm(ictxt,desc_a%matrix_data(psb_mpi_c_))
|
||||
|
||||
j = 1
|
||||
do ip=0, np-1
|
||||
if (ip==me) then
|
||||
do i=1, nlv(ip)
|
||||
desc_a%glob_to_loc(j) = i
|
||||
desc_a%loc_to_glob(i) = j
|
||||
j = j + 1
|
||||
enddo
|
||||
else
|
||||
do i=1, nlv(ip)
|
||||
desc_a%glob_to_loc(j) = -(np+ip+1)
|
||||
j = j + 1
|
||||
enddo
|
||||
endif
|
||||
enddo
|
||||
|
||||
tovr = -1
|
||||
thalo = -1
|
||||
|
||||
desc_a%lprm(:) = 0
|
||||
|
||||
call psi_cnv_dsc(thalo,tovr,desc_a,info)
|
||||
if (info /= 0) then
|
||||
call psb_errpush(4010,name,a_err='psi_bld_cdesc')
|
||||
goto 9999
|
||||
end if
|
||||
|
||||
desc_a%matrix_data(psb_dec_type_) = psb_desc_asb_
|
||||
|
||||
call psb_erractionrestore(err_act)
|
||||
return
|
||||
|
||||
9999 continue
|
||||
call psb_erractionrestore(err_act)
|
||||
if (err_act == act_abort) then
|
||||
call psb_error(ictxt)
|
||||
return
|
||||
end if
|
||||
return
|
||||
|
||||
end subroutine psb_cddec
|
||||
Loading…
Reference in New Issue