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psblas3/base/tools/psb_cdall.f90

262 lines
8.0 KiB
Fortran

!
! 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_cdall.f90
!
! Subroutine: psb_cdall
! Allocate descriptor Outer routine
!
subroutine psb_cdall(ctxt, desc, info,mg,ng,parts,&
& vg,vl,flag,nl,repl,globalcheck,lidx,usehash)
use psb_desc_mod
use psb_serial_mod
use psb_const_mod
use psb_error_mod
use psb_penv_mod
use psb_cd_tools_mod, psb_protect_name => psb_cdall
use psi_mod
implicit None
procedure(psb_parts) :: parts
integer(psb_lpk_), intent(in) :: mg,ng, vl(:)
type(psb_ctxt_type), intent(in) :: ctxt
integer(psb_ipk_), intent(in) :: vg(:), lidx(:),nl
integer(psb_ipk_), intent(in) :: flag
logical, intent(in) :: repl, globalcheck,usehash
integer(psb_ipk_), intent(out) :: info
type(psb_desc_type), intent(out) :: desc
optional :: mg,ng,parts,vg,vl,flag,nl,repl, globalcheck,lidx, usehash
interface
subroutine psb_cdals(m, n, parts, ctxt, desc, info)
use psb_desc_mod
procedure(psb_parts) :: parts
integer(psb_lpk_), intent(in) :: m,n
type(psb_ctxt_type), intent(in) :: ctxt
Type(psb_desc_type), intent(out) :: desc
integer(psb_ipk_), intent(out) :: info
end subroutine psb_cdals
subroutine psb_cdalv(v, ctxt, desc, info, flag)
use psb_desc_mod
type(psb_ctxt_type), intent(in) :: ctxt
integer(psb_ipk_), intent(in) :: v(:)
integer(psb_ipk_), intent(in), optional :: flag
integer(psb_ipk_), intent(out) :: info
Type(psb_desc_type), intent(out) :: desc
end subroutine psb_cdalv
subroutine psb_cd_inloc(v, ctxt, desc, info, globalcheck,idx, usehash)
use psb_desc_mod
implicit None
type(psb_ctxt_type), intent(in) :: ctxt
integer(psb_lpk_), intent(in) :: v(:)
integer(psb_ipk_), intent(out) :: info
type(psb_desc_type), intent(out) :: desc
logical, intent(in), optional :: globalcheck, usehash
integer(psb_ipk_), intent(in), optional :: idx(:)
end subroutine psb_cd_inloc
subroutine psb_cdrep(m, ctxt, desc,info)
use psb_desc_mod
integer(psb_lpk_), intent(in) :: m
type(psb_ctxt_type), intent(in) :: ctxt
Type(psb_desc_type), intent(out) :: desc
integer(psb_ipk_), intent(out) :: info
end subroutine psb_cdrep
end interface
character(len=20) :: name
integer(psb_ipk_) :: err_act, flag_, i, me, np, nnv, lr
integer(psb_lpk_) :: n_, nlp
logical :: usehash_
integer(psb_ipk_), allocatable :: itmpv(:)
integer(psb_lpk_), allocatable :: lvl(:)
logical, parameter :: timings=.false.
real(psb_dpk_) :: t0, t1
if (psb_get_errstatus() /= 0) return
info=psb_success_
name = 'psb_cdall'
call psb_erractionsave(err_act)
if (timings) t0 = psb_wtime()
call psb_info(ctxt, me, np)
if (count((/ present(vg),present(vl),&
& present(parts),present(nl), present(repl) /)) < 1) then
!
! Allocate a NULL descriptor, its only role is to
! store a CTXT for future reference
!
allocate(psb_indx_map :: desc%indxmap, stat=info)
call desc%indxmap%init_null(ctxt,info)
if (info /= 0) goto 9999
goto 9998
endif
desc%base_desc => null()
if (allocated(desc%indxmap)) then
write(0,*) 'Allocated on an intent(OUT) var?'
end if
if (present(parts)) then
if (.not.present(mg)) then
info=psb_err_no_optional_arg_
call psb_errpush(info,name)
goto 9999
end if
if (present(ng)) then
n_ = ng
else
n_ = mg
endif
call psb_cdals(mg, n_, parts, ctxt, desc, info)
else if (present(repl)) then
if (.not.present(mg)) then
info=psb_err_no_optional_arg_
call psb_errpush(info,name)
goto 9999
end if
if (.not.repl) then
info=psb_err_no_optional_arg_
call psb_errpush(info,name)
goto 9999
end if
call psb_cdrep(mg, ctxt, desc, info)
else if (present(vg)) then
if (present(flag)) then
flag_=flag
else
flag_=0
endif
if (present(mg)) then
nnv = min(mg,size(vg))
else
nnv = size(vg)
end if
call psb_cdalv(vg(1:nnv), ctxt, desc, info, flag=flag_)
else if (present(vl)) then
if (present(nl)) then
nnv = min(nl,size(vl))
else
nnv = size(vl)
end if
call psb_cd_inloc(vl(1:nnv),ctxt,desc,info, globalcheck=globalcheck,idx=lidx)
else if (present(nl)) then
if (present(usehash)) then
usehash_ = usehash
else
usehash_ = .false.
end if
if (usehash_) then
nlp = nl
call psb_exscan_sum(ctxt,nlp)
lvl = [ (i,i=1,nl) ] + nlp
call psb_cd_inloc(lvl(1:nl),ctxt,desc,info, globalcheck=.false.)
else
if (np == 1) then
allocate(psb_repl_map :: desc%indxmap, stat=info)
else
allocate(psb_gen_block_map :: desc%indxmap, stat=info)
end if
if (info == psb_success_) then
select type(aa => desc%indxmap)
type is (psb_repl_map)
n_ = nl
call aa%repl_map_init(ctxt,n_,info)
type is (psb_gen_block_map)
call aa%gen_block_map_init(ctxt,nl,info)
class default
! This cannot happen
info = psb_err_internal_error_
goto 9999
end select
end if
end if
call psb_realloc(1,itmpv, info)
if (info /= 0) then
write(0,*) 'Error reallocating itmspz'
goto 9999
end if
itmpv(:) = -1
call psi_bld_tmpovrl(itmpv,desc,info)
endif
if (info /= psb_success_) goto 9999
if (timings) then
t1 = psb_wtime()
write(0,*) name,' 1st phase:',t1-t0
t0 = psb_wtime()
end if
! Finish off
lr = desc%indxmap%get_lr()
call psb_realloc(max(1,lr/2),desc%halo_index, info)
if (info == psb_success_) call psb_realloc(1,desc%ext_index, info)
if (info /= psb_success_) then
info=psb_err_from_subroutine_
call psb_errpush(info,name,a_err='psb_realloc')
Goto 9999
end if
desc%halo_index(:) = -1
desc%ext_index(:) = -1
call psb_cd_set_bld(desc,info)
if (info /= psb_success_) goto 9999
if (timings) then
t1 = psb_wtime()
write(0,*) name,' 2nd phase:',t1-t0
t0 = psb_wtime()
end if
9998 continue
call psb_erractionrestore(err_act)
return
9999 call psb_error_handler(ctxt,err_act)
return
end subroutine psb_cdall