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psblas3/base/modules/psi_mod.f90

515 lines
17 KiB
Fortran

!!$
!!$ 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.
!!$
!!$
module psi_mod
interface
subroutine psi_compute_size(desc_data,&
& index_in, dl_lda, info)
integer :: info, dl_lda
integer :: desc_data(:), index_in(:)
end subroutine psi_compute_size
end interface
interface
subroutine psi_crea_bnd_elem(bndel,desc_a,info)
use psb_descriptor_type
integer, allocatable :: bndel(:)
type(psb_desc_type), intent(in) :: desc_a
integer, intent(out) :: info
end subroutine psi_crea_bnd_elem
end interface
interface
subroutine psi_crea_index(desc_a,index_in,index_out,glob_idx,nxch,nsnd,nrcv,info)
use psb_descriptor_type
type(psb_desc_type), intent(in) :: desc_a
integer, intent(out) :: info,nxch,nsnd,nrcv
integer, intent(in) :: index_in(:)
integer, allocatable, intent(inout) :: index_out(:)
logical :: glob_idx
end subroutine psi_crea_index
end interface
interface
subroutine psi_crea_ovr_elem(desc_overlap,ovr_elem,info)
integer :: desc_overlap(:)
integer, allocatable, intent(inout) :: ovr_elem(:)
integer, intent(out) :: info
end subroutine psi_crea_ovr_elem
end interface
interface
subroutine psi_desc_index(desc,index_in,dep_list,&
& length_dl,nsnd,nrcv,desc_index,isglob_in,info)
use psb_descriptor_type
type(psb_desc_type) :: desc
integer :: index_in(:),dep_list(:)
integer,allocatable, intent(inout) :: desc_index(:)
integer :: length_dl,nsnd,nrcv,info
logical :: isglob_in
end subroutine psi_desc_index
end interface
interface
subroutine psi_dl_check(dep_list,dl_lda,np,length_dl)
integer :: np,dl_lda,length_dl(0:np)
integer :: dep_list(dl_lda,0:np)
end subroutine psi_dl_check
end interface
interface
subroutine psi_sort_dl(dep_list,l_dep_list,np,info)
integer :: np,dep_list(:,:), l_dep_list(:), info
end subroutine psi_sort_dl
end interface
interface psi_swapdata
subroutine psi_dswapdatam(flag,n,beta,y,desc_a,work,info,data)
use psb_descriptor_type
integer, intent(in) :: flag, n
integer, intent(out) :: info
real(kind(1.d0)) :: y(:,:), beta
real(kind(1.d0)),target :: work(:)
type(psb_desc_type), target :: desc_a
integer, optional :: data
end subroutine psi_dswapdatam
subroutine psi_dswapdatav(flag,beta,y,desc_a,work,info,data)
use psb_descriptor_type
integer, intent(in) :: flag
integer, intent(out) :: info
real(kind(1.d0)) :: y(:), beta
real(kind(1.d0)),target :: work(:)
type(psb_desc_type), target :: desc_a
integer, optional :: data
end subroutine psi_dswapdatav
subroutine psi_iswapdatam(flag,n,beta,y,desc_a,work,info,data)
use psb_descriptor_type
integer, intent(in) :: flag, n
integer, intent(out) :: info
integer :: y(:,:), beta
integer, target :: work(:)
type(psb_desc_type), target :: desc_a
integer, optional :: data
end subroutine psi_iswapdatam
subroutine psi_iswapdatav(flag,beta,y,desc_a,work,info,data)
use psb_descriptor_type
integer, intent(in) :: flag
integer, intent(out) :: info
integer :: y(:), beta
integer, target :: work(:)
type(psb_desc_type), target :: desc_a
integer, optional :: data
end subroutine psi_iswapdatav
subroutine psi_zswapdatam(flag,n,beta,y,desc_a,work,info,data)
use psb_descriptor_type
integer, intent(in) :: flag, n
integer, intent(out) :: info
complex(kind(1.d0)) :: y(:,:), beta
complex(kind(1.d0)),target :: work(:)
type(psb_desc_type), target :: desc_a
integer, optional :: data
end subroutine psi_zswapdatam
subroutine psi_zswapdatav(flag,beta,y,desc_a,work,info,data)
use psb_descriptor_type
integer, intent(in) :: flag
integer, intent(out) :: info
complex(kind(1.d0)) :: y(:), beta
complex(kind(1.d0)),target :: work(:)
type(psb_desc_type), target :: desc_a
integer, optional :: data
end subroutine psi_zswapdatav
end interface
interface psi_swaptran
subroutine psi_dswaptranm(flag,n,beta,y,desc_a,work,info)
use psb_descriptor_type
integer, intent(in) :: flag, n
integer, intent(out) :: info
real(kind(1.d0)) :: y(:,:), beta
real(kind(1.d0)),target :: work(:)
type(psb_desc_type), target :: desc_a
end subroutine psi_dswaptranm
subroutine psi_dswaptranv(flag,beta,y,desc_a,work,info)
use psb_descriptor_type
integer, intent(in) :: flag
integer, intent(out) :: info
real(kind(1.d0)) :: y(:), beta
real(kind(1.d0)),target :: work(:)
type(psb_desc_type), target :: desc_a
end subroutine psi_dswaptranv
subroutine psi_iswaptranm(flag,n,beta,y,desc_a,work,info)
use psb_descriptor_type
integer, intent(in) :: flag, n
integer, intent(out) :: info
integer :: y(:,:), beta
integer,target :: work(:)
type(psb_desc_type), target :: desc_a
end subroutine psi_iswaptranm
subroutine psi_iswaptranv(flag,beta,y,desc_a,work,info)
use psb_descriptor_type
integer, intent(in) :: flag
integer, intent(out) :: info
integer :: y(:), beta
integer,target :: work(:)
type(psb_desc_type), target :: desc_a
end subroutine psi_iswaptranv
subroutine psi_zswaptranm(flag,n,beta,y,desc_a,work,info)
use psb_descriptor_type
integer, intent(in) :: flag, n
integer, intent(out) :: info
complex(kind(1.d0)) :: y(:,:), beta
complex(kind(1.d0)),target :: work(:)
type(psb_desc_type), target :: desc_a
end subroutine psi_zswaptranm
subroutine psi_zswaptranv(flag,beta,y,desc_a,work,info)
use psb_descriptor_type
integer, intent(in) :: flag
integer, intent(out) :: info
complex(kind(1.d0)) :: y(:), beta
complex(kind(1.d0)),target :: work(:)
type(psb_desc_type), target :: desc_a
end subroutine psi_zswaptranv
end interface
interface psi_cnv_dsc
module procedure psi_cnv_dsc
end interface
interface psi_inner_cnv
module procedure psi_inner_cnv1, psi_inner_cnv2
end interface
interface
subroutine psi_extract_dep_list(desc_data,desc_str,dep_list,&
& length_dl,np,dl_lda,mode,info)
integer :: np,dl_lda,mode, info
integer :: desc_str(*),desc_data(*),dep_list(dl_lda,0:np),length_dl(0:np)
end subroutine psi_extract_dep_list
end interface
interface psi_fnd_owner
subroutine psi_fnd_owner(nv,idx,iprc,desc,info)
use psb_descriptor_type
integer, intent(in) :: nv
integer, intent(in) :: idx(:)
integer, allocatable, intent(out) :: iprc(:)
type(psb_desc_type), intent(in) :: desc
integer, intent(out) :: info
end subroutine psi_fnd_owner
end interface
interface psi_ldsc_pre_halo
subroutine psi_ldsc_pre_halo(desc,ext_hv,info)
use psb_descriptor_type
type(psb_desc_type), intent(inout) :: desc
logical, intent(in) :: ext_hv
integer, intent(out) :: info
end subroutine psi_ldsc_pre_halo
end interface
interface psi_idx_cnv
subroutine psi_idx_cnv1(nv,idxin,desc,info,mask,owned)
use psb_descriptor_type
integer, intent(in) :: nv
integer, intent(inout) :: idxin(:)
type(psb_desc_type), intent(in) :: desc
integer, intent(out) :: info
logical, intent(in), optional, target :: mask(:)
logical, intent(in), optional :: owned
end subroutine psi_idx_cnv1
subroutine psi_idx_cnv2(nv,idxin,idxout,desc,info,mask,owned)
use psb_descriptor_type
integer, intent(in) :: nv, idxin(:)
integer, intent(out) :: idxout(:)
type(psb_desc_type), intent(in) :: desc
integer, intent(out) :: info
logical, intent(in), optional, target :: mask(:)
logical, intent(in), optional :: owned
end subroutine psi_idx_cnv2
subroutine psi_idx_cnvs(idxin,idxout,desc,info,mask,owned)
use psb_descriptor_type
integer, intent(in) :: idxin
integer, intent(out) :: idxout
type(psb_desc_type), intent(in) :: desc
integer, intent(out) :: info
logical, intent(in), optional, target :: mask
logical, intent(in), optional :: owned
end subroutine psi_idx_cnvs
end interface
interface psi_idx_ins_cnv
subroutine psi_idx_ins_cnv1(nv,idxin,desc,info,mask)
use psb_descriptor_type
integer, intent(in) :: nv
integer, intent(inout) :: idxin(:)
type(psb_desc_type), intent(inout) :: desc
integer, intent(out) :: info
logical, intent(in), optional, target :: mask(:)
end subroutine psi_idx_ins_cnv1
subroutine psi_idx_ins_cnv2(nv,idxin,idxout,desc,info,mask)
use psb_descriptor_type
integer, intent(in) :: nv, idxin(:)
integer, intent(out) :: idxout(:)
type(psb_desc_type), intent(inout) :: desc
integer, intent(out) :: info
logical, intent(in), optional, target :: mask(:)
end subroutine psi_idx_ins_cnv2
subroutine psi_idx_ins_cnvs(idxin,idxout,desc,info,mask)
use psb_descriptor_type
integer, intent(in) :: idxin
integer, intent(out) :: idxout
type(psb_desc_type), intent(inout) :: desc
integer, intent(out) :: info
logical, intent(in), optional, target :: mask
end subroutine psi_idx_ins_cnvs
end interface
contains
subroutine psi_cnv_dsc(halo_in,ovrlap_in,ext_in,cdesc, info)
use psb_const_mod
use psb_error_mod
use psb_penv_mod
use psb_descriptor_type
use psb_realloc_mod
implicit none
! ....scalars parameters....
integer, intent(in) :: halo_in(:), ovrlap_in(:),ext_in(:)
type(psb_desc_type), intent(inout) :: cdesc
integer, intent(out) :: info
! ....local scalars....
integer :: i,np,me,proc, max_index
integer :: ictxt, err_act,nxch,nsnd,nrcv
! ...local array...
integer :: int_err(5)
integer, allocatable :: idx_out(:)
! ...parameters
logical, parameter :: debug=.false.
character(len=20) :: name
name='psi_bld_cdesc'
call psb_get_erraction(err_act)
info = 0
ictxt = cdesc%matrix_data(psb_ctxt_)
call psb_info(ictxt,me,np)
if (np == -1) then
info = 2010
call psb_errpush(info,name)
goto 9999
endif
! first the halo index
if (debug) write(0,*) me,'Calling crea_index on halo'
call psi_crea_index(cdesc,halo_in, idx_out,.false.,nxch,nsnd,nrcv,info)
if(info /= 0) then
call psb_errpush(4010,name,a_err='psi_crea_index')
goto 9999
end if
call psb_transfer(idx_out,cdesc%halo_index,info)
cdesc%matrix_data(psb_thal_xch_) = nxch
cdesc%matrix_data(psb_thal_snd_) = nsnd
cdesc%matrix_data(psb_thal_rcv_) = nrcv
if (debug) write(0,*) me,'Done crea_index on halo'
if (debug) write(0,*) me,'Calling crea_index on ext'
! then ext index
if (debug) write(0,*) me,'Calling crea_index on ext'
call psi_crea_index(cdesc,ext_in, idx_out,.false.,nxch,nsnd,nrcv,info)
if(info /= 0) then
call psb_errpush(4010,name,a_err='psi_crea_index')
goto 9999
end if
call psb_transfer(idx_out,cdesc%ext_index,info)
cdesc%matrix_data(psb_text_xch_) = nxch
cdesc%matrix_data(psb_text_snd_) = nsnd
cdesc%matrix_data(psb_text_rcv_) = nrcv
if (debug) write(0,*) me,'Done crea_index on ext'
if (debug) write(0,*) me,'Calling crea_index on ovrlap'
! then the overlap index
call psi_crea_index(cdesc,ovrlap_in, idx_out,.true.,nxch,nsnd,nrcv,info)
if(info /= 0) then
call psb_errpush(4010,name,a_err='psi_crea_index')
goto 9999
end if
call psb_transfer(idx_out,cdesc%ovrlap_index,info)
if(info /= 0) then
call psb_errpush(4010,name,a_err='psb_transfer')
goto 9999
end if
cdesc%matrix_data(psb_tovr_xch_) = nxch
cdesc%matrix_data(psb_tovr_snd_) = nsnd
cdesc%matrix_data(psb_tovr_rcv_) = nrcv
if (debug) write(0,*) me,'Calling crea_ovr_elem'
! next ovrlap_elem
call psi_crea_ovr_elem(cdesc%ovrlap_index,cdesc%ovrlap_elem,info)
if (debug) write(0,*) me,'Done crea_ovr_elem'
if(info /= 0) then
call psb_errpush(4010,name,a_err='psi_crea_ovr_elem')
goto 9999
end if
! finally bnd_elem
call psi_crea_bnd_elem(idx_out,cdesc,info)
if (info == 0) call psb_transfer(idx_out,cdesc%bnd_elem,info)
if(info /= 0) then
call psb_errpush(4010,name,a_err='psi_crea_bnd_elem')
goto 9999
end if
if (debug) write(0,*) me,'Done crea_bnd_elem'
call psb_erractionrestore(err_act)
return
9999 continue
call psb_erractionrestore(err_act)
if (err_act == psb_act_abort_) then
call psb_error(ictxt)
return
end if
return
end subroutine psi_cnv_dsc
subroutine psi_inner_cnv1(n,x,hashsize,hashmask,hashv,glb_lc)
integer, intent(in) :: n, hashsize,hashmask,hashv(0:),glb_lc(:,:)
integer, intent(inout) :: x(:)
integer :: i, ih, key, idx,nh,tmp,lb,ub,lm
!
! When a large descriptor is assembled the indices
! are kept in a (hashed) list of ordered lists.
! Thus we first hash the index, then we do a binary search on the
! ordered sublist. The hashing is based on the low-order bits
! for a width of psb_hash_bits
!
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<glb_lc(lm,1)) then
ub = lm - 1
else
lb = lm + 1
end if
end do
else
tmp = -1
end if
if (tmp > 0) then
x(i) = glb_lc(tmp,2)
else
x(i) = tmp
end if
end do
end subroutine psi_inner_cnv1
subroutine psi_inner_cnv2(n,x,y,hashsize,hashmask,hashv,glb_lc)
integer, intent(in) :: n, hashsize,hashmask,hashv(0:),glb_lc(:,:)
integer, intent(in) :: x(:)
integer, intent(out) :: y(:)
integer :: i, ih, key, idx,nh,tmp,lb,ub,lm
!
! When a large descriptor is assembled the indices
! are kept in a (hashed) list of ordered lists.
! Thus we first hash the index, then we do a binary search on the
! ordered sublist. The hashing is based on the low-order bits
! for a width of psb_hash_bits
!
do i=1, n
key = x(i)
ih = iand(key,hashmask)
if (ih > ubound(hashv,1) ) then
write(0,*) ' In inner cnv: ',ih,ubound(hashv)
end if
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<glb_lc(lm,1)) then
ub = lm - 1
else
lb = lm + 1
end if
end do
else
tmp = -1
end if
if (tmp > 0) then
y(i) = glb_lc(tmp,2)
else
y(i) = tmp
end if
end do
end subroutine psi_inner_cnv2
end module psi_mod