|
|
|
|
!!$
|
|
|
|
|
!!$ 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 mat_dist
|
|
|
|
|
|
|
|
|
|
interface matdist
|
|
|
|
|
module procedure dmatdistf, dmatdistv, zmatdistf, zmatdistv
|
|
|
|
|
end interface
|
|
|
|
|
|
|
|
|
|
contains
|
|
|
|
|
|
|
|
|
|
subroutine dmatdistf (a_glob, a, parts, ictxt, desc_a,&
|
|
|
|
|
& b_glob, b, info, inroot,fmt)
|
|
|
|
|
!
|
|
|
|
|
! an utility subroutine to distribute a matrix among processors
|
|
|
|
|
! according to a user defined data distribution, using
|
|
|
|
|
! sparse matrix subroutines.
|
|
|
|
|
!
|
|
|
|
|
! type(d_spmat) :: a_glob
|
|
|
|
|
! on entry: this contains the global sparse matrix as follows:
|
|
|
|
|
! a%fida =='csr'
|
|
|
|
|
! a%aspk for coefficient values
|
|
|
|
|
! a%ia1 for column indices
|
|
|
|
|
! a%ia2 for row pointers
|
|
|
|
|
! a%m for number of global matrix rows
|
|
|
|
|
! a%k for number of global matrix columns
|
|
|
|
|
! on exit : undefined, with unassociated pointers.
|
|
|
|
|
!
|
|
|
|
|
! type(d_spmat) :: a
|
|
|
|
|
! on entry: fresh variable.
|
|
|
|
|
! on exit : this will contain the local sparse matrix.
|
|
|
|
|
!
|
|
|
|
|
! interface parts
|
|
|
|
|
! ! .....user passed subroutine.....
|
|
|
|
|
! subroutine parts(global_indx,n,np,pv,nv)
|
|
|
|
|
! implicit none
|
|
|
|
|
! integer, intent(in) :: global_indx, n, np
|
|
|
|
|
! integer, intent(out) :: nv
|
|
|
|
|
! integer, intent(out) :: pv(*)
|
|
|
|
|
!
|
|
|
|
|
! end subroutine parts
|
|
|
|
|
! end interface
|
|
|
|
|
! on entry: subroutine providing user defined data distribution.
|
|
|
|
|
! for each global_indx the subroutine should return
|
|
|
|
|
! the list pv of all processes owning the row with
|
|
|
|
|
! that index; the list will contain nv entries.
|
|
|
|
|
! usually nv=1; if nv >1 then we have an overlap in the data
|
|
|
|
|
! distribution.
|
|
|
|
|
!
|
|
|
|
|
! integer :: ictxt
|
|
|
|
|
! on entry: blacs context.
|
|
|
|
|
! on exit : unchanged.
|
|
|
|
|
!
|
|
|
|
|
! type (desc_type) :: desc_a
|
|
|
|
|
! on entry: fresh variable.
|
|
|
|
|
! on exit : the updated array descriptor
|
|
|
|
|
!
|
|
|
|
|
! real(kind(1.d0)), pointer, optional :: b_glob(:)
|
|
|
|
|
! on entry: this contains right hand side.
|
|
|
|
|
! on exit :
|
|
|
|
|
!
|
|
|
|
|
! real(kind(1.d0)), pointer, optional :: b(:)
|
|
|
|
|
! on entry: fresh variable.
|
|
|
|
|
! on exit : this will contain the local right hand side.
|
|
|
|
|
!
|
|
|
|
|
! integer, optional :: inroot
|
|
|
|
|
! on entry: specifies processor holding a_glob. default: 0
|
|
|
|
|
! on exit : unchanged.
|
|
|
|
|
!
|
|
|
|
|
use psb_sparse_mod
|
|
|
|
|
implicit none
|
|
|
|
|
|
|
|
|
|
! parameters
|
|
|
|
|
type(psb_dspmat_type) :: a_glob
|
|
|
|
|
real(kind(1.d0)), pointer :: b_glob(:)
|
|
|
|
|
integer :: ictxt
|
|
|
|
|
type(psb_dspmat_type) :: a
|
|
|
|
|
real(kind(1.d0)), pointer :: b(:)
|
|
|
|
|
type (psb_desc_type) :: desc_a
|
|
|
|
|
integer, intent(out) :: info
|
|
|
|
|
integer, optional :: inroot
|
|
|
|
|
character(len=5), optional :: fmt
|
|
|
|
|
interface
|
|
|
|
|
|
|
|
|
|
! .....user passed subroutine.....
|
|
|
|
|
subroutine parts(global_indx,n,np,pv,nv)
|
|
|
|
|
implicit none
|
|
|
|
|
integer, intent(in) :: global_indx, n, np
|
|
|
|
|
integer, intent(out) :: nv
|
|
|
|
|
integer, intent(out) :: pv(*)
|
|
|
|
|
end subroutine parts
|
|
|
|
|
end interface
|
|
|
|
|
|
|
|
|
|
! local variables
|
|
|
|
|
integer :: np, iam
|
|
|
|
|
integer :: ircode, length_row, i_count, j_count,&
|
|
|
|
|
& k_count, blockdim, root, liwork, nrow, ncol, nnzero, nrhs,&
|
|
|
|
|
& i,j,k, ll, nz, isize, iproc, nnr, err, err_act, int_err(5)
|
|
|
|
|
integer, pointer :: iwork(:)
|
|
|
|
|
character :: afmt*5, atyp*5
|
|
|
|
|
integer, allocatable :: irow(:),icol(:)
|
|
|
|
|
real(kind(1.d0)), allocatable :: val(:)
|
|
|
|
|
integer, parameter :: nb=30
|
|
|
|
|
real(kind(1.d0)) :: t0, t1, t2, t3, t4, t5, mpi_wtime
|
|
|
|
|
external :: mpi_wtime
|
|
|
|
|
logical, parameter :: newt=.true.
|
|
|
|
|
character(len=20) :: name, ch_err
|
|
|
|
|
|
|
|
|
|
info = 0
|
|
|
|
|
err = 0
|
|
|
|
|
name = 'mat_distf'
|
|
|
|
|
call psb_erractionsave(err_act)
|
|
|
|
|
|
|
|
|
|
! executable statements
|
|
|
|
|
if (present(inroot)) then
|
|
|
|
|
root = inroot
|
|
|
|
|
else
|
|
|
|
|
root = 0
|
|
|
|
|
end if
|
|
|
|
|
call psb_info(ictxt, iam, np)
|
|
|
|
|
|
|
|
|
|
if (iam == root) then
|
|
|
|
|
! extract information from a_glob
|
|
|
|
|
if (a_glob%fida.ne. 'CSR') then
|
|
|
|
|
info=135
|
|
|
|
|
ch_err='CSR'
|
|
|
|
|
call psb_errpush(info,name,a_err=ch_err)
|
|
|
|
|
goto 9999
|
|
|
|
|
endif
|
|
|
|
|
nrow = a_glob%m
|
|
|
|
|
ncol = a_glob%k
|
|
|
|
|
if (nrow /= ncol) then
|
|
|
|
|
write(0,*) 'a rectangular matrix ? ',nrow,ncol
|
|
|
|
|
info=-1
|
|
|
|
|
call psb_errpush(info,name)
|
|
|
|
|
goto 9999
|
|
|
|
|
endif
|
|
|
|
|
nnzero = size(a_glob%aspk)
|
|
|
|
|
nrhs = 1
|
|
|
|
|
! broadcast informations to other processors
|
|
|
|
|
endif
|
|
|
|
|
call psb_bcast(ictxt, nrow,root)
|
|
|
|
|
call psb_bcast(ictxt, ncol,root)
|
|
|
|
|
call psb_bcast(ictxt, nnzero,root)
|
|
|
|
|
call psb_bcast(ictxt, nrhs,root)
|
|
|
|
|
|
|
|
|
|
liwork = max(np, nrow + ncol)
|
|
|
|
|
allocate(iwork(liwork), stat = info)
|
|
|
|
|
if (info /= 0) then
|
|
|
|
|
info=2025
|
|
|
|
|
int_err(1)=liwork
|
|
|
|
|
call psb_errpush(info,name,i_err=int_err)
|
|
|
|
|
goto 9999
|
|
|
|
|
endif
|
|
|
|
|
if (iam == root) then
|
|
|
|
|
write (*, fmt = *) 'start matdist',root, size(iwork),&
|
|
|
|
|
&nrow, ncol, nnzero,nrhs
|
|
|
|
|
endif
|
|
|
|
|
if (newt) then
|
|
|
|
|
call psb_cdall(nrow,nrow,parts,ictxt,desc_a,info)
|
|
|
|
|
if(info/=0) then
|
|
|
|
|
info=4010
|
|
|
|
|
ch_err='psb_cdall'
|
|
|
|
|
call psb_errpush(info,name,a_err=ch_err)
|
|
|
|
|
goto 9999
|
|
|
|
|
end if
|
|
|
|
|
else
|
|
|
|
|
call psb_cdall(nrow,nrow,parts,ictxt,desc_a,info)
|
|
|
|
|
if(info/=0) then
|
|
|
|
|
info=4010
|
|
|
|
|
ch_err='psb_pscdall'
|
|
|
|
|
call psb_errpush(info,name,a_err=ch_err)
|
|
|
|
|
goto 9999
|
|
|
|
|
end if
|
|
|
|
|
endif
|
|
|
|
|
call psb_spall(a,desc_a,info,nnz=nnzero/np)
|
|
|
|
|
if(info/=0) then
|
|
|
|
|
info=4010
|
|
|
|
|
ch_err='psb_psspall'
|
|
|
|
|
call psb_errpush(info,name,a_err=ch_err)
|
|
|
|
|
goto 9999
|
|
|
|
|
end if
|
|
|
|
|
call psb_geall(b,desc_a,info)
|
|
|
|
|
if(info/=0) then
|
|
|
|
|
info=4010
|
|
|
|
|
ch_err='psb_psdsall'
|
|
|
|
|
call psb_errpush(info,name,a_err=ch_err)
|
|
|
|
|
goto 9999
|
|
|
|
|
end if
|
|
|
|
|
isize = max(3*nb,ncol)
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
allocate(val(nb*ncol),irow(nb*ncol),icol(nb*ncol),stat=info)
|
|
|
|
|
if(info/=0) then
|
|
|
|
|
info=4010
|
|
|
|
|
ch_err='Allocate'
|
|
|
|
|
call psb_errpush(info,name,a_err=ch_err)
|
|
|
|
|
goto 9999
|
|
|
|
|
end if
|
|
|
|
|
|
|
|
|
|
i_count = 1
|
|
|
|
|
|
|
|
|
|
do while (i_count.le.nrow)
|
|
|
|
|
|
|
|
|
|
call parts(i_count,nrow,np,iwork, length_row)
|
|
|
|
|
|
|
|
|
|
if (length_row.eq.1) then
|
|
|
|
|
j_count = i_count
|
|
|
|
|
iproc = iwork(1)
|
|
|
|
|
do
|
|
|
|
|
j_count = j_count + 1
|
|
|
|
|
if (j_count-i_count >= nb) exit
|
|
|
|
|
if (j_count > nrow) exit
|
|
|
|
|
call parts(j_count,nrow,np,iwork, length_row)
|
|
|
|
|
if (length_row /= 1 ) exit
|
|
|
|
|
if (iwork(1) /= iproc ) exit
|
|
|
|
|
end do
|
|
|
|
|
|
|
|
|
|
! now we should insert rows i_count..j_count-1
|
|
|
|
|
nnr = j_count - i_count
|
|
|
|
|
|
|
|
|
|
if (iam == root) then
|
|
|
|
|
|
|
|
|
|
ll = 0
|
|
|
|
|
do i= i_count, j_count-1
|
|
|
|
|
call psb_sp_getrow(i,a_glob,nz,&
|
|
|
|
|
& irow(ll+1:),icol(ll+1:),val(ll+1:), info)
|
|
|
|
|
if (info /= 0) then
|
|
|
|
|
if (nz >min(size(irow(ll+1:)),size(icol(ll+1:)),size(val(ll+1:)))) then
|
|
|
|
|
write(0,*) 'Allocation failure? This should not happen!'
|
|
|
|
|
end if
|
|
|
|
|
call psb_errpush(info,name,a_err=ch_err)
|
|
|
|
|
goto 9999
|
|
|
|
|
end if
|
|
|
|
|
ll = ll + nz
|
|
|
|
|
end do
|
|
|
|
|
|
|
|
|
|
if (iproc == iam) then
|
|
|
|
|
call psb_spins(ll,irow,icol,val,a,desc_a,info)
|
|
|
|
|
if(info/=0) then
|
|
|
|
|
info=4010
|
|
|
|
|
ch_err='psb_spins'
|
|
|
|
|
call psb_errpush(info,name,a_err=ch_err)
|
|
|
|
|
goto 9999
|
|
|
|
|
end if
|
|
|
|
|
call psb_geins(nnr,(/(i,i=i_count,j_count-1)/),&
|
|
|
|
|
& b_glob(i_count:j_count-1),b,desc_a,info)
|
|
|
|
|
if(info/=0) then
|
|
|
|
|
info=4010
|
|
|
|
|
ch_err='psb_ins'
|
|
|
|
|
call psb_errpush(info,name,a_err=ch_err)
|
|
|
|
|
goto 9999
|
|
|
|
|
end if
|
|
|
|
|
else
|
|
|
|
|
call psb_snd(ictxt,nnr,iproc)
|
|
|
|
|
call psb_snd(ictxt,ll,iproc)
|
|
|
|
|
call psb_snd(ictxt,irow(1:ll),iproc)
|
|
|
|
|
call psb_snd(ictxt,icol(1:ll),iproc)
|
|
|
|
|
call psb_snd(ictxt,val(1:ll),iproc)
|
|
|
|
|
call psb_snd(ictxt,b_glob(i_count:j_count-1),iproc)
|
|
|
|
|
call psb_rcv(ictxt,ll,iproc)
|
|
|
|
|
endif
|
|
|
|
|
else if (iam /= root) then
|
|
|
|
|
|
|
|
|
|
if (iproc == iam) then
|
|
|
|
|
call psb_rcv(ictxt,nnr,root)
|
|
|
|
|
call psb_rcv(ictxt,ll,root)
|
|
|
|
|
if (ll > size(irow)) then
|
|
|
|
|
write(0,*) iam,'need to reallocate ',ll
|
|
|
|
|
deallocate(val,irow,icol)
|
|
|
|
|
allocate(val(ll),irow(ll),icol(ll),stat=info)
|
|
|
|
|
if(info/=0) then
|
|
|
|
|
info=4010
|
|
|
|
|
ch_err='Allocate'
|
|
|
|
|
call psb_errpush(info,name,a_err=ch_err)
|
|
|
|
|
goto 9999
|
|
|
|
|
end if
|
|
|
|
|
|
|
|
|
|
endif
|
|
|
|
|
call psb_rcv(ictxt,irow(1:ll),root)
|
|
|
|
|
call psb_rcv(ictxt,icol(1:ll),root)
|
|
|
|
|
call psb_rcv(ictxt,val(1:ll),root)
|
|
|
|
|
call psb_rcv(ictxt,b_glob(i_count:i_count+nnr-1),root)
|
|
|
|
|
call psb_snd(ictxt,ll,root)
|
|
|
|
|
call psb_spins(ll,irow,icol,val,a,desc_a,info)
|
|
|
|
|
if(info/=0) then
|
|
|
|
|
info=4010
|
|
|
|
|
ch_err='psspins'
|
|
|
|
|
call psb_errpush(info,name,a_err=ch_err)
|
|
|
|
|
goto 9999
|
|
|
|
|
end if
|
|
|
|
|
call psb_geins(nnr,(/(i,i=i_count,i_count+nnr-1)/),&
|
|
|
|
|
& b_glob(i_count:i_count+nnr-1),b,desc_a,info)
|
|
|
|
|
if(info/=0) then
|
|
|
|
|
info=4010
|
|
|
|
|
ch_err='psdsins'
|
|
|
|
|
call psb_errpush(info,name,a_err=ch_err)
|
|
|
|
|
goto 9999
|
|
|
|
|
end if
|
|
|
|
|
endif
|
|
|
|
|
endif
|
|
|
|
|
|
|
|
|
|
i_count = j_count
|
|
|
|
|
|
|
|
|
|
else
|
|
|
|
|
write(0,*) iam,'unexpected turn'
|
|
|
|
|
! here processors are counted 1..np
|
|
|
|
|
do j_count = 1, length_row
|
|
|
|
|
k_count = iwork(j_count)
|
|
|
|
|
if (iam == root) then
|
|
|
|
|
|
|
|
|
|
ll = 0
|
|
|
|
|
do i= i_count, i_count
|
|
|
|
|
call psb_sp_getrow(i,a_glob,nz,&
|
|
|
|
|
& irow(ll+1:),icol(ll+1:),val(ll+1:), info)
|
|
|
|
|
if (info /= 0) then
|
|
|
|
|
if (nz >min(size(irow(ll+1:)),size(icol(ll+1:)),size(val(ll+1:)))) then
|
|
|
|
|
write(0,*) 'Allocation failure? This should not happen!'
|
|
|
|
|
end if
|
|
|
|
|
call psb_errpush(info,name,a_err=ch_err)
|
|
|
|
|
goto 9999
|
|
|
|
|
end if
|
|
|
|
|
ll = ll + nz
|
|
|
|
|
end do
|
|
|
|
|
|
|
|
|
|
if (k_count == iam) then
|
|
|
|
|
|
|
|
|
|
call psb_spins(ll,irow,icol,val,a,desc_a,info)
|
|
|
|
|
if(info/=0) then
|
|
|
|
|
info=4010
|
|
|
|
|
ch_err='psspins'
|
|
|
|
|
call psb_errpush(info,name,a_err=ch_err)
|
|
|
|
|
goto 9999
|
|
|
|
|
end if
|
|
|
|
|
call psb_geins(1,(/i_count/),b_glob(i_count:i_count),&
|
|
|
|
|
& b,desc_a,info)
|
|
|
|
|
if(info/=0) then
|
|
|
|
|
info=4010
|
|
|
|
|
ch_err='psdsins'
|
|
|
|
|
call psb_errpush(info,name,a_err=ch_err)
|
|
|
|
|
goto 9999
|
|
|
|
|
end if
|
|
|
|
|
else
|
|
|
|
|
call psb_snd(ictxt,ll,k_count)
|
|
|
|
|
call psb_snd(ictxt,irow(1:ll),k_count)
|
|
|
|
|
call psb_snd(ictxt,icol(1:ll),k_count)
|
|
|
|
|
call psb_snd(ictxt,val(1:ll),k_count)
|
|
|
|
|
call psb_snd(ictxt,b_glob(i_count),k_count)
|
|
|
|
|
call psb_rcv(ictxt,ll,k_count)
|
|
|
|
|
endif
|
|
|
|
|
else if (iam /= root) then
|
|
|
|
|
if (k_count == iam) then
|
|
|
|
|
|
|
|
|
|
call psb_rcv(ictxt,ll,root)
|
|
|
|
|
call psb_rcv(ictxt,irow(1:ll),root)
|
|
|
|
|
call psb_rcv(ictxt,icol(1:ll),root)
|
|
|
|
|
call psb_rcv(ictxt,val(1:ll),root)
|
|
|
|
|
call psb_rcv(ictxt,b_glob(i_count),root)
|
|
|
|
|
call psb_snd(ictxt,ll,root)
|
|
|
|
|
call psb_spins(ll,irow,icol,val,a,desc_a,info)
|
|
|
|
|
if(info/=0) then
|
|
|
|
|
info=4010
|
|
|
|
|
ch_err='psspins'
|
|
|
|
|
call psb_errpush(info,name,a_err=ch_err)
|
|
|
|
|
goto 9999
|
|
|
|
|
end if
|
|
|
|
|
call psb_geins(1,(/i_count/),b_glob(i_count:i_count),&
|
|
|
|
|
& b,desc_a,info)
|
|
|
|
|
if(info/=0) then
|
|
|
|
|
info=4010
|
|
|
|
|
ch_err='psdsins'
|
|
|
|
|
call psb_errpush(info,name,a_err=ch_err)
|
|
|
|
|
goto 9999
|
|
|
|
|
end if
|
|
|
|
|
endif
|
|
|
|
|
endif
|
|
|
|
|
end do
|
|
|
|
|
i_count = i_count + 1
|
|
|
|
|
endif
|
|
|
|
|
end do
|
|
|
|
|
|
|
|
|
|
if (present(fmt)) then
|
|
|
|
|
afmt=fmt
|
|
|
|
|
else
|
|
|
|
|
afmt = 'CSR'
|
|
|
|
|
endif
|
|
|
|
|
if (newt) then
|
|
|
|
|
|
|
|
|
|
call psb_barrier(ictxt)
|
|
|
|
|
t0 = mpi_wtime()
|
|
|
|
|
call psb_cdasb(desc_a,info)
|
|
|
|
|
t1 = mpi_wtime()
|
|
|
|
|
if(info/=0)then
|
|
|
|
|
info=4010
|
|
|
|
|
ch_err='psb_cdasb'
|
|
|
|
|
call psb_errpush(info,name,a_err=ch_err)
|
|
|
|
|
goto 9999
|
|
|
|
|
end if
|
|
|
|
|
|
|
|
|
|
call psb_barrier(ictxt)
|
|
|
|
|
t2 = mpi_wtime()
|
|
|
|
|
call psb_spasb(a,desc_a,info,dupl=psb_dupl_err_,afmt=afmt)
|
|
|
|
|
t3 = mpi_wtime()
|
|
|
|
|
if(info/=0)then
|
|
|
|
|
info=4010
|
|
|
|
|
ch_err='psb_spasb'
|
|
|
|
|
call psb_errpush(info,name,a_err=ch_err)
|
|
|
|
|
goto 9999
|
|
|
|
|
end if
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
if (iam == root) then
|
|
|
|
|
write(*,*) 'descriptor assembly: ',t1-t0
|
|
|
|
|
write(*,*) 'sparse matrix assembly: ',t3-t2
|
|
|
|
|
end if
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
else
|
|
|
|
|
call psb_spasb(a,desc_a,info,afmt=afmt,dupl=psb_dupl_err_)
|
|
|
|
|
if(info/=0)then
|
|
|
|
|
info=4010
|
|
|
|
|
ch_err='psspasb'
|
|
|
|
|
call psb_errpush(info,name,a_err=ch_err)
|
|
|
|
|
goto 9999
|
|
|
|
|
end if
|
|
|
|
|
endif
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
call psb_geasb(b,desc_a,info)
|
|
|
|
|
if(info/=0)then
|
|
|
|
|
info=4010
|
|
|
|
|
ch_err='psdsasb'
|
|
|
|
|
call psb_errpush(info,name,a_err=ch_err)
|
|
|
|
|
goto 9999
|
|
|
|
|
end if
|
|
|
|
|
deallocate(val,irow,icol,stat=info)
|
|
|
|
|
if(info/=0)then
|
|
|
|
|
info=4010
|
|
|
|
|
ch_err='deallocate'
|
|
|
|
|
call psb_errpush(info,name,a_err=ch_err)
|
|
|
|
|
goto 9999
|
|
|
|
|
end if
|
|
|
|
|
|
|
|
|
|
deallocate(iwork)
|
|
|
|
|
if (iam == root) write (*, fmt = *) 'end matdist'
|
|
|
|
|
|
|
|
|
|
call psb_erractionrestore(err_act)
|
|
|
|
|
return
|
|
|
|
|
|
|
|
|
|
9999 continue
|
|
|
|
|
call psb_erractionrestore(err_act)
|
|
|
|
|
if (err_act.eq.act_abort) then
|
|
|
|
|
call psb_error(ictxt)
|
|
|
|
|
return
|
|
|
|
|
end if
|
|
|
|
|
return
|
|
|
|
|
|
|
|
|
|
end subroutine dmatdistf
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
subroutine dmatdistv (a_glob, a, v, ictxt, desc_a,&
|
|
|
|
|
& b_glob, b, info, inroot,fmt)
|
|
|
|
|
!
|
|
|
|
|
! an utility subroutine to distribute a matrix among processors
|
|
|
|
|
! according to a user defined data distribution, using
|
|
|
|
|
! sparse matrix subroutines.
|
|
|
|
|
!
|
|
|
|
|
! type(d_spmat) :: a_glob
|
|
|
|
|
! on entry: this contains the global sparse matrix as follows:
|
|
|
|
|
! a%fida =='csr'
|
|
|
|
|
! a%aspk for coefficient values
|
|
|
|
|
! a%ia1 for column indices
|
|
|
|
|
! a%ia2 for row pointers
|
|
|
|
|
! a%m for number of global matrix rows
|
|
|
|
|
! a%k for number of global matrix columns
|
|
|
|
|
! on exit : undefined, with unassociated pointers.
|
|
|
|
|
!
|
|
|
|
|
! type(d_spmat) :: a
|
|
|
|
|
! on entry: fresh variable.
|
|
|
|
|
! on exit : this will contain the local sparse matrix.
|
|
|
|
|
!
|
|
|
|
|
! interface parts
|
|
|
|
|
! ! .....user passed subroutine.....
|
|
|
|
|
! subroutine parts(global_indx,n,np,pv,nv)
|
|
|
|
|
! implicit none
|
|
|
|
|
! integer, intent(in) :: global_indx, n, np
|
|
|
|
|
! integer, intent(out) :: nv
|
|
|
|
|
! integer, intent(out) :: pv(*)
|
|
|
|
|
!
|
|
|
|
|
! end subroutine parts
|
|
|
|
|
! end interface
|
|
|
|
|
! on entry: subroutine providing user defined data distribution.
|
|
|
|
|
! for each global_indx the subroutine should return
|
|
|
|
|
! the list pv of all processes owning the row with
|
|
|
|
|
! that index; the list will contain nv entries.
|
|
|
|
|
! usually nv=1; if nv >1 then we have an overlap in the data
|
|
|
|
|
! distribution.
|
|
|
|
|
!
|
|
|
|
|
! integer :: ictxt
|
|
|
|
|
! on entry: blacs context.
|
|
|
|
|
! on exit : unchanged.
|
|
|
|
|
!
|
|
|
|
|
! type (desc_type) :: desc_a
|
|
|
|
|
! on entry: fresh variable.
|
|
|
|
|
! on exit : the updated array descriptor
|
|
|
|
|
!
|
|
|
|
|
! real(kind(1.d0)), pointer, optional :: b_glob(:)
|
|
|
|
|
! on entry: this contains right hand side.
|
|
|
|
|
! on exit :
|
|
|
|
|
!
|
|
|
|
|
! real(kind(1.d0)), pointer, optional :: b(:)
|
|
|
|
|
! on entry: fresh variable.
|
|
|
|
|
! on exit : this will contain the local right hand side.
|
|
|
|
|
!
|
|
|
|
|
! integer, optional :: inroot
|
|
|
|
|
! on entry: specifies processor holding a_glob. default: 0
|
|
|
|
|
! on exit : unchanged.
|
|
|
|
|
!
|
|
|
|
|
use psb_sparse_mod
|
|
|
|
|
implicit none ! parameters
|
|
|
|
|
type(psb_dspmat_type) :: a_glob
|
|
|
|
|
real(kind(1.d0)), pointer :: b_glob(:)
|
|
|
|
|
integer :: ictxt, v(:)
|
|
|
|
|
type(psb_dspmat_type) :: a
|
|
|
|
|
real(kind(1.d0)), pointer :: b(:)
|
|
|
|
|
type (psb_desc_type) :: desc_a
|
|
|
|
|
integer, intent(out) :: info
|
|
|
|
|
integer, optional :: inroot
|
|
|
|
|
character(len=5), optional :: fmt
|
|
|
|
|
|
|
|
|
|
integer :: np, iam
|
|
|
|
|
integer :: ircode, length_row, i_count, j_count,&
|
|
|
|
|
& k_count, blockdim, root, liwork, nrow, ncol, nnzero, nrhs,&
|
|
|
|
|
& i,j,k, ll, nz, isize, iproc, nnr, err, err_act, int_err(5)
|
|
|
|
|
integer, pointer :: iwork(:)
|
|
|
|
|
character :: afmt*5, atyp*5
|
|
|
|
|
integer, allocatable :: irow(:),icol(:)
|
|
|
|
|
real(kind(1.d0)), allocatable :: val(:)
|
|
|
|
|
integer, parameter :: nb=30
|
|
|
|
|
logical, parameter :: newt=.true.
|
|
|
|
|
real(kind(1.d0)) :: t0, t1, t2, t3, t4, t5, mpi_wtime
|
|
|
|
|
external :: mpi_wtime
|
|
|
|
|
character(len=20) :: name, ch_err
|
|
|
|
|
|
|
|
|
|
info = 0
|
|
|
|
|
err = 0
|
|
|
|
|
name = 'mat_distv'
|
|
|
|
|
call psb_erractionsave(err_act)
|
|
|
|
|
|
|
|
|
|
! executable statements
|
|
|
|
|
if (present(inroot)) then
|
|
|
|
|
root = inroot
|
|
|
|
|
else
|
|
|
|
|
root = 0
|
|
|
|
|
end if
|
|
|
|
|
|
|
|
|
|
call psb_info(ictxt, iam, np)
|
|
|
|
|
if (iam == root) then
|
|
|
|
|
! extract information from a_glob
|
|
|
|
|
if (a_glob%fida.ne. 'CSR') then
|
|
|
|
|
info=135
|
|
|
|
|
ch_err='CSR'
|
|
|
|
|
call psb_errpush(info,name,a_err=ch_err)
|
|
|
|
|
goto 9999
|
|
|
|
|
endif
|
|
|
|
|
|
|
|
|
|
nrow = a_glob%m
|
|
|
|
|
ncol = a_glob%k
|
|
|
|
|
if (nrow /= ncol) then
|
|
|
|
|
write(0,*) 'a rectangular matrix ? ',nrow,ncol
|
|
|
|
|
info=-1
|
|
|
|
|
call psb_errpush(info,name)
|
|
|
|
|
goto 9999
|
|
|
|
|
endif
|
|
|
|
|
|
|
|
|
|
nnzero = size(a_glob%aspk)
|
|
|
|
|
nrhs = 1
|
|
|
|
|
end if
|
|
|
|
|
! broadcast informations to other processors
|
|
|
|
|
call psb_bcast(ictxt,nrow, root)
|
|
|
|
|
call psb_bcast(ictxt,ncol, root)
|
|
|
|
|
call psb_bcast(ictxt,nnzero, root)
|
|
|
|
|
call psb_bcast(ictxt,nrhs, root)
|
|
|
|
|
liwork = max(np, nrow + ncol)
|
|
|
|
|
allocate(iwork(liwork), stat = info)
|
|
|
|
|
if (info /= 0) then
|
|
|
|
|
write(0,*) 'matdist allocation failed'
|
|
|
|
|
info=2025
|
|
|
|
|
int_err(1)=liwork
|
|
|
|
|
call psb_errpush(info,name,i_err=int_err)
|
|
|
|
|
goto 9999
|
|
|
|
|
endif
|
|
|
|
|
|
|
|
|
|
call psb_cdall(nrow,v,ictxt,desc_a,info)
|
|
|
|
|
if(info/=0) then
|
|
|
|
|
info=4010
|
|
|
|
|
ch_err='psb_cdall'
|
|
|
|
|
call psb_errpush(info,name,a_err=ch_err)
|
|
|
|
|
goto 9999
|
|
|
|
|
end if
|
|
|
|
|
|
|
|
|
|
call psb_spall(a,desc_a,info,nnz=((nnzero+np-1)/np))
|
|
|
|
|
if(info/=0) then
|
|
|
|
|
info=4010
|
|
|
|
|
ch_err='psb_psspall'
|
|
|
|
|
call psb_errpush(info,name,a_err=ch_err)
|
|
|
|
|
goto 9999
|
|
|
|
|
end if
|
|
|
|
|
call psb_geall(b,desc_a,info)
|
|
|
|
|
if(info/=0) then
|
|
|
|
|
info=4010
|
|
|
|
|
ch_err='psb_psdsall'
|
|
|
|
|
call psb_errpush(info,name,a_err=ch_err)
|
|
|
|
|
goto 9999
|
|
|
|
|
end if
|
|
|
|
|
isize = max(3*nb,ncol)
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
allocate(val(nb*ncol),irow(nb*ncol),icol(nb*ncol),stat=info)
|
|
|
|
|
if(info/=0) then
|
|
|
|
|
info=4010
|
|
|
|
|
ch_err='Allocate'
|
|
|
|
|
call psb_errpush(info,name,a_err=ch_err)
|
|
|
|
|
goto 9999
|
|
|
|
|
end if
|
|
|
|
|
|
|
|
|
|
i_count = 1
|
|
|
|
|
|
|
|
|
|
do while (i_count <= nrow)
|
|
|
|
|
|
|
|
|
|
j_count = i_count
|
|
|
|
|
iproc = v(i_count)
|
|
|
|
|
|
|
|
|
|
do
|
|
|
|
|
j_count = j_count + 1
|
|
|
|
|
if (j_count-i_count >= nb) exit
|
|
|
|
|
if (j_count > nrow) exit
|
|
|
|
|
if (v(j_count) /= iproc ) exit
|
|
|
|
|
end do
|
|
|
|
|
|
|
|
|
|
! now we should insert rows i_count..j_count-1
|
|
|
|
|
nnr = j_count - i_count
|
|
|
|
|
|
|
|
|
|
if (iam == root) then
|
|
|
|
|
|
|
|
|
|
ll = 0
|
|
|
|
|
do i= i_count, j_count-1
|
|
|
|
|
call psb_sp_getrow(i,a_glob,nz,&
|
|
|
|
|
& irow(ll+1:),icol(ll+1:),val(ll+1:), info)
|
|
|
|
|
if (info /= 0) then
|
|
|
|
|
if (nz >min(size(irow(ll+1:)),size(icol(ll+1:)),size(val(ll+1:)))) then
|
|
|
|
|
write(0,*) 'Allocation failure? This should not happen!'
|
|
|
|
|
end if
|
|
|
|
|
call psb_errpush(info,name,a_err=ch_err)
|
|
|
|
|
goto 9999
|
|
|
|
|
end if
|
|
|
|
|
ll = ll + nz
|
|
|
|
|
end do
|
|
|
|
|
|
|
|
|
|
if (iproc == iam) then
|
|
|
|
|
call psb_spins(ll,irow,icol,val,a,desc_a,info)
|
|
|
|
|
if(info/=0) then
|
|
|
|
|
info=4010
|
|
|
|
|
ch_err='psb_spins'
|
|
|
|
|
call psb_errpush(info,name,a_err=ch_err)
|
|
|
|
|
goto 9999
|
|
|
|
|
end if
|
|
|
|
|
|
|
|
|
|
call psb_geins(nnr,(/(i,i=i_count,j_count-1)/),b_glob(i_count:j_count-1),&
|
|
|
|
|
& b,desc_a,info)
|
|
|
|
|
if(info/=0) then
|
|
|
|
|
info=4010
|
|
|
|
|
ch_err='dsins'
|
|
|
|
|
call psb_errpush(info,name,a_err=ch_err)
|
|
|
|
|
goto 9999
|
|
|
|
|
end if
|
|
|
|
|
else
|
|
|
|
|
call psb_snd(ictxt,nnr,iproc)
|
|
|
|
|
call psb_snd(ictxt,ll,iproc)
|
|
|
|
|
call psb_snd(ictxt,irow(1:ll),iproc)
|
|
|
|
|
call psb_snd(ictxt,icol(1:ll),iproc)
|
|
|
|
|
call psb_snd(ictxt,val(1:ll),iproc)
|
|
|
|
|
call psb_snd(ictxt,b_glob(i_count:j_count-1),iproc)
|
|
|
|
|
call psb_rcv(ictxt,ll,iproc)
|
|
|
|
|
endif
|
|
|
|
|
else if (iam /= root) then
|
|
|
|
|
|
|
|
|
|
if (iproc == iam) then
|
|
|
|
|
call psb_rcv(ictxt,nnr,root)
|
|
|
|
|
call psb_rcv(ictxt,ll,root)
|
|
|
|
|
if (ll > size(val)) then
|
|
|
|
|
write(0,*) iam,'need to reallocate ',ll
|
|
|
|
|
deallocate(val,irow,icol)
|
|
|
|
|
allocate(val(ll),irow(ll),icol(ll),stat=info)
|
|
|
|
|
if(info/=0) then
|
|
|
|
|
info=4010
|
|
|
|
|
ch_err='Allocate'
|
|
|
|
|
call psb_errpush(info,name,a_err=ch_err)
|
|
|
|
|
goto 9999
|
|
|
|
|
end if
|
|
|
|
|
endif
|
|
|
|
|
call psb_rcv(ictxt,irow(1:ll),root)
|
|
|
|
|
call psb_rcv(ictxt,icol(1:ll),root)
|
|
|
|
|
call psb_rcv(ictxt,val(1:ll),root)
|
|
|
|
|
call psb_rcv(ictxt,b_glob(i_count:i_count+nnr-1),root)
|
|
|
|
|
call psb_snd(ictxt,ll,root)
|
|
|
|
|
|
|
|
|
|
call psb_spins(ll,irow,icol,val,a,desc_a,info)
|
|
|
|
|
if(info/=0) then
|
|
|
|
|
info=4010
|
|
|
|
|
ch_err='spins'
|
|
|
|
|
call psb_errpush(info,name,a_err=ch_err)
|
|
|
|
|
goto 9999
|
|
|
|
|
end if
|
|
|
|
|
call psb_geins(nnr,(/(i,i=i_count,i_count+nnr-1)/),&
|
|
|
|
|
& b_glob(i_count:i_count+nnr-1),b,desc_a,info)
|
|
|
|
|
if(info/=0) then
|
|
|
|
|
info=4010
|
|
|
|
|
ch_err='psdsins'
|
|
|
|
|
call psb_errpush(info,name,a_err=ch_err)
|
|
|
|
|
goto 9999
|
|
|
|
|
end if
|
|
|
|
|
endif
|
|
|
|
|
endif
|
|
|
|
|
i_count = j_count
|
|
|
|
|
|
|
|
|
|
end do
|
|
|
|
|
|
|
|
|
|
! default storage format for sparse matrix; we do not
|
|
|
|
|
! expect duplicated entries.
|
|
|
|
|
|
|
|
|
|
if (present(fmt)) then
|
|
|
|
|
afmt=fmt
|
|
|
|
|
else
|
|
|
|
|
afmt = 'CSR'
|
|
|
|
|
endif
|
|
|
|
|
call psb_barrier(ictxt)
|
|
|
|
|
t0 = mpi_wtime()
|
|
|
|
|
call psb_cdasb(desc_a,info)
|
|
|
|
|
t1 = mpi_wtime()
|
|
|
|
|
if(info/=0)then
|
|
|
|
|
info=4010
|
|
|
|
|
ch_err='psb_cdasb'
|
|
|
|
|
call psb_errpush(info,name,a_err=ch_err)
|
|
|
|
|
goto 9999
|
|
|
|
|
end if
|
|
|
|
|
|
|
|
|
|
call psb_barrier(ictxt)
|
|
|
|
|
t2 = mpi_wtime()
|
|
|
|
|
call psb_spasb(a,desc_a,info,dupl=psb_dupl_err_,afmt=afmt)
|
|
|
|
|
t3 = mpi_wtime()
|
|
|
|
|
if(info/=0)then
|
|
|
|
|
info=4010
|
|
|
|
|
ch_err='psb_spasb'
|
|
|
|
|
call psb_errpush(info,name,a_err=ch_err)
|
|
|
|
|
goto 9999
|
|
|
|
|
end if
|
|
|
|
|
|
|
|
|
|
call psb_geasb(b,desc_a,info)
|
|
|
|
|
|
|
|
|
|
if (iam == root) then
|
|
|
|
|
write(*,'("Descriptor assembly : ",es10.4)')t1-t0
|
|
|
|
|
write(*,'("Sparse matrix assembly: ",es10.4)')t3-t2
|
|
|
|
|
end if
|
|
|
|
|
|
|
|
|
|
if(info/=0)then
|
|
|
|
|
info=4010
|
|
|
|
|
ch_err='psdsasb'
|
|
|
|
|
call psb_errpush(info,name,a_err=ch_err)
|
|
|
|
|
goto 9999
|
|
|
|
|
end if
|
|
|
|
|
|
|
|
|
|
deallocate(iwork)
|
|
|
|
|
|
|
|
|
|
call psb_erractionrestore(err_act)
|
|
|
|
|
return
|
|
|
|
|
|
|
|
|
|
9999 continue
|
|
|
|
|
call psb_erractionrestore(err_act)
|
|
|
|
|
if (err_act.eq.act_abort) then
|
|
|
|
|
call psb_error(ictxt)
|
|
|
|
|
return
|
|
|
|
|
end if
|
|
|
|
|
return
|
|
|
|
|
|
|
|
|
|
end subroutine dmatdistv
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
subroutine zmatdistf (a_glob, a, parts, ictxt, desc_a,&
|
|
|
|
|
& b_glob, b, info, inroot,fmt)
|
|
|
|
|
!
|
|
|
|
|
! an utility subroutine to distribute a matrix among processors
|
|
|
|
|
! according to a user defined data distribution, using
|
|
|
|
|
! sparse matrix subroutines.
|
|
|
|
|
!
|
|
|
|
|
! type(d_spmat) :: a_glob
|
|
|
|
|
! on entry: this contains the global sparse matrix as follows:
|
|
|
|
|
! a%fida =='csr'
|
|
|
|
|
! a%aspk for coefficient values
|
|
|
|
|
! a%ia1 for column indices
|
|
|
|
|
! a%ia2 for row pointers
|
|
|
|
|
! a%m for number of global matrix rows
|
|
|
|
|
! a%k for number of global matrix columns
|
|
|
|
|
! on exit : undefined, with unassociated pointers.
|
|
|
|
|
!
|
|
|
|
|
! type(d_spmat) :: a
|
|
|
|
|
! on entry: fresh variable.
|
|
|
|
|
! on exit : this will contain the local sparse matrix.
|
|
|
|
|
!
|
|
|
|
|
! interface parts
|
|
|
|
|
! ! .....user passed subroutine.....
|
|
|
|
|
! subroutine parts(global_indx,n,np,pv,nv)
|
|
|
|
|
! implicit none
|
|
|
|
|
! integer, intent(in) :: global_indx, n, np
|
|
|
|
|
! integer, intent(out) :: nv
|
|
|
|
|
! integer, intent(out) :: pv(*)
|
|
|
|
|
!
|
|
|
|
|
! end subroutine parts
|
|
|
|
|
! end interface
|
|
|
|
|
! on entry: subroutine providing user defined data distribution.
|
|
|
|
|
! for each global_indx the subroutine should return
|
|
|
|
|
! the list pv of all processes owning the row with
|
|
|
|
|
! that index; the list will contain nv entries.
|
|
|
|
|
! usually nv=1; if nv >1 then we have an overlap in the data
|
|
|
|
|
! distribution.
|
|
|
|
|
!
|
|
|
|
|
! integer :: ictxt
|
|
|
|
|
! on entry: blacs context.
|
|
|
|
|
! on exit : unchanged.
|
|
|
|
|
!
|
|
|
|
|
! type (desc_type) :: desc_a
|
|
|
|
|
! on entry: fresh variable.
|
|
|
|
|
! on exit : the updated array descriptor
|
|
|
|
|
!
|
|
|
|
|
! real(kind(1.d0)), pointer, optional :: b_glob(:)
|
|
|
|
|
! on entry: this contains right hand side.
|
|
|
|
|
! on exit :
|
|
|
|
|
!
|
|
|
|
|
! real(kind(1.d0)), pointer, optional :: b(:)
|
|
|
|
|
! on entry: fresh variable.
|
|
|
|
|
! on exit : this will contain the local right hand side.
|
|
|
|
|
!
|
|
|
|
|
! integer, optional :: inroot
|
|
|
|
|
! on entry: specifies processor holding a_glob. default: 0
|
|
|
|
|
! on exit : unchanged.
|
|
|
|
|
!
|
|
|
|
|
use psb_sparse_mod
|
|
|
|
|
implicit none
|
|
|
|
|
|
|
|
|
|
! parameters
|
|
|
|
|
type(psb_zspmat_type) :: a_glob
|
|
|
|
|
complex(kind(1.d0)), pointer :: b_glob(:)
|
|
|
|
|
integer :: ictxt
|
|
|
|
|
type(psb_zspmat_type) :: a
|
|
|
|
|
complex(kind(1.d0)), pointer :: b(:)
|
|
|
|
|
type (psb_desc_type) :: desc_a
|
|
|
|
|
integer, intent(out) :: info
|
|
|
|
|
integer, optional :: inroot
|
|
|
|
|
character(len=5), optional :: fmt
|
|
|
|
|
interface
|
|
|
|
|
|
|
|
|
|
! .....user passed subroutine.....
|
|
|
|
|
subroutine parts(global_indx,n,np,pv,nv)
|
|
|
|
|
implicit none
|
|
|
|
|
integer, intent(in) :: global_indx, n, np
|
|
|
|
|
integer, intent(out) :: nv
|
|
|
|
|
integer, intent(out) :: pv(*)
|
|
|
|
|
end subroutine parts
|
|
|
|
|
end interface
|
|
|
|
|
|
|
|
|
|
! local variables
|
|
|
|
|
integer :: np, iam
|
|
|
|
|
integer :: ircode, length_row, i_count, j_count,&
|
|
|
|
|
& k_count, blockdim, root, liwork, nrow, ncol, nnzero, nrhs,&
|
|
|
|
|
& i,j,k, ll, nz, isize, iproc, nnr, err, err_act, int_err(5)
|
|
|
|
|
integer, pointer :: iwork(:)
|
|
|
|
|
character :: afmt*5, atyp*5
|
|
|
|
|
integer, allocatable :: irow(:),icol(:)
|
|
|
|
|
complex(kind(1.d0)), allocatable :: val(:)
|
|
|
|
|
integer, parameter :: nb=30
|
|
|
|
|
real(kind(1.d0)) :: t0, t1, t2, t3, t4, t5, mpi_wtime
|
|
|
|
|
external :: mpi_wtime
|
|
|
|
|
logical, parameter :: newt=.true.
|
|
|
|
|
character(len=20) :: name, ch_err
|
|
|
|
|
|
|
|
|
|
info = 0
|
|
|
|
|
err = 0
|
|
|
|
|
name = 'mat_distf'
|
|
|
|
|
call psb_erractionsave(err_act)
|
|
|
|
|
|
|
|
|
|
! executable statements
|
|
|
|
|
if (present(inroot)) then
|
|
|
|
|
root = inroot
|
|
|
|
|
else
|
|
|
|
|
root = 0
|
|
|
|
|
end if
|
|
|
|
|
call psb_info(ictxt, iam, np)
|
|
|
|
|
if (iam == root) then
|
|
|
|
|
! extract information from a_glob
|
|
|
|
|
if (a_glob%fida.ne. 'CSR') then
|
|
|
|
|
info=135
|
|
|
|
|
ch_err='CSR'
|
|
|
|
|
call psb_errpush(info,name,a_err=ch_err)
|
|
|
|
|
goto 9999
|
|
|
|
|
endif
|
|
|
|
|
nrow = a_glob%m
|
|
|
|
|
ncol = a_glob%k
|
|
|
|
|
if (nrow /= ncol) then
|
|
|
|
|
write(0,*) 'a rectangular matrix ? ',nrow,ncol
|
|
|
|
|
info=-1
|
|
|
|
|
call psb_errpush(info,name)
|
|
|
|
|
goto 9999
|
|
|
|
|
endif
|
|
|
|
|
nnzero = size(a_glob%aspk)
|
|
|
|
|
nrhs = 1
|
|
|
|
|
endif
|
|
|
|
|
! broadcast informations to other processors
|
|
|
|
|
call psb_bcast(ictxt,nrow, root)
|
|
|
|
|
call psb_bcast(ictxt,ncol, root)
|
|
|
|
|
call psb_bcast(ictxt,nnzero, root)
|
|
|
|
|
call psb_bcast(ictxt,nrhs, root)
|
|
|
|
|
liwork = max(np, nrow + ncol)
|
|
|
|
|
allocate(iwork(liwork), stat = info)
|
|
|
|
|
if (info /= 0) then
|
|
|
|
|
info=2025
|
|
|
|
|
int_err(1)=liwork
|
|
|
|
|
call psb_errpush(info,name,i_err=int_err)
|
|
|
|
|
goto 9999
|
|
|
|
|
endif
|
|
|
|
|
if (iam == root) then
|
|
|
|
|
write (*, fmt = *) 'start matdist',root, size(iwork),&
|
|
|
|
|
&nrow, ncol, nnzero,nrhs
|
|
|
|
|
endif
|
|
|
|
|
if (newt) then
|
|
|
|
|
call psb_cdall(nrow,nrow,parts,ictxt,desc_a,info)
|
|
|
|
|
if(info/=0) then
|
|
|
|
|
info=4010
|
|
|
|
|
ch_err='psb_cdall'
|
|
|
|
|
call psb_errpush(info,name,a_err=ch_err)
|
|
|
|
|
goto 9999
|
|
|
|
|
end if
|
|
|
|
|
else
|
|
|
|
|
call psb_cdall(nrow,nrow,parts,ictxt,desc_a,info)
|
|
|
|
|
if(info/=0) then
|
|
|
|
|
info=4010
|
|
|
|
|
ch_err='psb_pscdall'
|
|
|
|
|
call psb_errpush(info,name,a_err=ch_err)
|
|
|
|
|
goto 9999
|
|
|
|
|
end if
|
|
|
|
|
endif
|
|
|
|
|
call psb_spall(a,desc_a,info,nnz=nnzero/np)
|
|
|
|
|
if(info/=0) then
|
|
|
|
|
info=4010
|
|
|
|
|
ch_err='psb_psspall'
|
|
|
|
|
call psb_errpush(info,name,a_err=ch_err)
|
|
|
|
|
goto 9999
|
|
|
|
|
end if
|
|
|
|
|
call psb_geall(b,desc_a,info)
|
|
|
|
|
if(info/=0) then
|
|
|
|
|
info=4010
|
|
|
|
|
ch_err='psb_psdsall'
|
|
|
|
|
call psb_errpush(info,name,a_err=ch_err)
|
|
|
|
|
goto 9999
|
|
|
|
|
end if
|
|
|
|
|
isize = max(3*nb,ncol)
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
allocate(val(nb*ncol),irow(nb*ncol),icol(nb*ncol),stat=info)
|
|
|
|
|
if(info/=0) then
|
|
|
|
|
info=4010
|
|
|
|
|
ch_err='Allocate'
|
|
|
|
|
call psb_errpush(info,name,a_err=ch_err)
|
|
|
|
|
goto 9999
|
|
|
|
|
end if
|
|
|
|
|
|
|
|
|
|
i_count = 1
|
|
|
|
|
|
|
|
|
|
do while (i_count.le.nrow)
|
|
|
|
|
|
|
|
|
|
call parts(i_count,nrow,np,iwork, length_row)
|
|
|
|
|
|
|
|
|
|
if (length_row.eq.1) then
|
|
|
|
|
j_count = i_count
|
|
|
|
|
iproc = iwork(1)
|
|
|
|
|
do
|
|
|
|
|
j_count = j_count + 1
|
|
|
|
|
if (j_count-i_count >= nb) exit
|
|
|
|
|
if (j_count > nrow) exit
|
|
|
|
|
call parts(j_count,nrow,np,iwork, length_row)
|
|
|
|
|
if (length_row /= 1 ) exit
|
|
|
|
|
if (iwork(1) /= iproc ) exit
|
|
|
|
|
end do
|
|
|
|
|
|
|
|
|
|
! now we should insert rows i_count..j_count-1
|
|
|
|
|
nnr = j_count - i_count
|
|
|
|
|
|
|
|
|
|
if (iam == root) then
|
|
|
|
|
|
|
|
|
|
ll = 0
|
|
|
|
|
do i= i_count, j_count-1
|
|
|
|
|
call psb_sp_getrow(i,a_glob,nz,&
|
|
|
|
|
& irow(ll+1:),icol(ll+1:),val(ll+1:), info)
|
|
|
|
|
if (info /= 0) then
|
|
|
|
|
if (nz >min(size(irow(ll+1:)),size(icol(ll+1:)),size(val(ll+1:)))) then
|
|
|
|
|
write(0,*) 'Allocation failure? This should not happen!'
|
|
|
|
|
end if
|
|
|
|
|
call psb_errpush(info,name,a_err=ch_err)
|
|
|
|
|
goto 9999
|
|
|
|
|
end if
|
|
|
|
|
ll = ll + nz
|
|
|
|
|
end do
|
|
|
|
|
|
|
|
|
|
if (iproc == iam) then
|
|
|
|
|
call psb_spins(ll,irow,icol,val,a,desc_a,info)
|
|
|
|
|
if(info/=0) then
|
|
|
|
|
info=4010
|
|
|
|
|
ch_err='psb_spins'
|
|
|
|
|
call psb_errpush(info,name,a_err=ch_err)
|
|
|
|
|
goto 9999
|
|
|
|
|
end if
|
|
|
|
|
call psb_geins(nnr,(/(i,i=i_count,j_count-1)/),b_glob(i_count:j_count-1),&
|
|
|
|
|
& b,desc_a,info)
|
|
|
|
|
if(info/=0) then
|
|
|
|
|
info=4010
|
|
|
|
|
ch_err='psb_ins'
|
|
|
|
|
call psb_errpush(info,name,a_err=ch_err)
|
|
|
|
|
goto 9999
|
|
|
|
|
end if
|
|
|
|
|
else
|
|
|
|
|
call psb_snd(ictxt,nnr,iproc)
|
|
|
|
|
call psb_snd(ictxt,ll,iproc)
|
|
|
|
|
call psb_snd(ictxt,irow(1:ll),iproc)
|
|
|
|
|
call psb_snd(ictxt,icol(1:ll),iproc)
|
|
|
|
|
call psb_snd(ictxt,val(1:ll),iproc)
|
|
|
|
|
call psb_snd(ictxt,b_glob(i_count:j_count-1),iproc)
|
|
|
|
|
call psb_rcv(ictxt,ll,iproc)
|
|
|
|
|
endif
|
|
|
|
|
else if (iam /= root) then
|
|
|
|
|
|
|
|
|
|
if (iproc == iam) then
|
|
|
|
|
call psb_rcv(ictxt,nnr,root)
|
|
|
|
|
call psb_rcv(ictxt,ll,root)
|
|
|
|
|
if (ll > size(irow)) then
|
|
|
|
|
write(0,*) iam,'need to reallocate ',ll
|
|
|
|
|
deallocate(val,irow,icol)
|
|
|
|
|
allocate(val(ll),irow(ll),icol(ll),stat=info)
|
|
|
|
|
if(info/=0) then
|
|
|
|
|
info=4010
|
|
|
|
|
ch_err='Allocate'
|
|
|
|
|
call psb_errpush(info,name,a_err=ch_err)
|
|
|
|
|
goto 9999
|
|
|
|
|
end if
|
|
|
|
|
|
|
|
|
|
endif
|
|
|
|
|
call psb_rcv(ictxt,irow(1:ll),root)
|
|
|
|
|
call psb_rcv(ictxt,icol(1:ll),root)
|
|
|
|
|
call psb_rcv(ictxt,val(1:ll),root)
|
|
|
|
|
call psb_rcv(ictxt,b_glob(i_count:i_count+nnr-1),root)
|
|
|
|
|
call psb_snd(ictxt,ll,root)
|
|
|
|
|
call psb_spins(ll,irow,icol,val,a,desc_a,info)
|
|
|
|
|
if(info/=0) then
|
|
|
|
|
info=4010
|
|
|
|
|
ch_err='psspins'
|
|
|
|
|
call psb_errpush(info,name,a_err=ch_err)
|
|
|
|
|
goto 9999
|
|
|
|
|
end if
|
|
|
|
|
call psb_geins(nnr,(/(i,i=i_count,i_count+nnr-1)/),&
|
|
|
|
|
& b_glob(i_count:i_count+nnr-1),b,desc_a,info)
|
|
|
|
|
if(info/=0) then
|
|
|
|
|
info=4010
|
|
|
|
|
ch_err='psdsins'
|
|
|
|
|
call psb_errpush(info,name,a_err=ch_err)
|
|
|
|
|
goto 9999
|
|
|
|
|
end if
|
|
|
|
|
endif
|
|
|
|
|
endif
|
|
|
|
|
|
|
|
|
|
i_count = j_count
|
|
|
|
|
|
|
|
|
|
else
|
|
|
|
|
write(0,*) iam,'unexpected turn'
|
|
|
|
|
! here processors are counted 1..np
|
|
|
|
|
do j_count = 1, length_row
|
|
|
|
|
k_count = iwork(j_count)
|
|
|
|
|
if (iam == root) then
|
|
|
|
|
|
|
|
|
|
ll = 0
|
|
|
|
|
do i= i_count, i_count
|
|
|
|
|
call psb_sp_getrow(i,a_glob,nz,&
|
|
|
|
|
& irow(ll+1:),icol(ll+1:),val(ll+1:), info)
|
|
|
|
|
if (info /= 0) then
|
|
|
|
|
if (nz >min(size(irow(ll+1:)),size(icol(ll+1:)),size(val(ll+1:)))) then
|
|
|
|
|
write(0,*) 'Allocation failure? This should not happen!'
|
|
|
|
|
end if
|
|
|
|
|
call psb_errpush(info,name,a_err=ch_err)
|
|
|
|
|
goto 9999
|
|
|
|
|
end if
|
|
|
|
|
ll = ll + nz
|
|
|
|
|
end do
|
|
|
|
|
|
|
|
|
|
if (k_count == iam) then
|
|
|
|
|
|
|
|
|
|
call psb_spins(ll,irow,icol,val,a,desc_a,info)
|
|
|
|
|
if(info/=0) then
|
|
|
|
|
info=4010
|
|
|
|
|
ch_err='psspins'
|
|
|
|
|
call psb_errpush(info,name,a_err=ch_err)
|
|
|
|
|
goto 9999
|
|
|
|
|
end if
|
|
|
|
|
call psb_geins(1,(/i_count/),b_glob(i_count:i_count),&
|
|
|
|
|
& b,desc_a,info)
|
|
|
|
|
if(info/=0) then
|
|
|
|
|
info=4010
|
|
|
|
|
ch_err='psdsins'
|
|
|
|
|
call psb_errpush(info,name,a_err=ch_err)
|
|
|
|
|
goto 9999
|
|
|
|
|
end if
|
|
|
|
|
else
|
|
|
|
|
call psb_snd(ictxt,ll,k_count)
|
|
|
|
|
call psb_snd(ictxt,irow(1:ll),k_count)
|
|
|
|
|
call psb_snd(ictxt,icol(1:ll),k_count)
|
|
|
|
|
call psb_snd(ictxt,val(1:ll),k_count)
|
|
|
|
|
call psb_snd(ictxt,b_glob(i_count),k_count)
|
|
|
|
|
call psb_rcv(ictxt,ll,k_count)
|
|
|
|
|
endif
|
|
|
|
|
else if (iam /= root) then
|
|
|
|
|
if (k_count == iam) then
|
|
|
|
|
call psb_rcv(ictxt,ll,root)
|
|
|
|
|
call psb_rcv(ictxt,irow(1:ll),root)
|
|
|
|
|
call psb_rcv(ictxt,icol(1:ll),root)
|
|
|
|
|
call psb_rcv(ictxt,val(1:ll),root)
|
|
|
|
|
call psb_rcv(ictxt,b_glob(i_count),root)
|
|
|
|
|
call psb_snd(ictxt,ll,root)
|
|
|
|
|
call psb_spins(ll,irow,icol,val,a,desc_a,info)
|
|
|
|
|
if(info/=0) then
|
|
|
|
|
info=4010
|
|
|
|
|
ch_err='psspins'
|
|
|
|
|
call psb_errpush(info,name,a_err=ch_err)
|
|
|
|
|
goto 9999
|
|
|
|
|
end if
|
|
|
|
|
call psb_geins(1,(/i_count/),b_glob(i_count:i_count),&
|
|
|
|
|
& b,desc_a,info)
|
|
|
|
|
if(info/=0) then
|
|
|
|
|
info=4010
|
|
|
|
|
ch_err='psdsins'
|
|
|
|
|
call psb_errpush(info,name,a_err=ch_err)
|
|
|
|
|
goto 9999
|
|
|
|
|
end if
|
|
|
|
|
endif
|
|
|
|
|
endif
|
|
|
|
|
end do
|
|
|
|
|
i_count = i_count + 1
|
|
|
|
|
endif
|
|
|
|
|
end do
|
|
|
|
|
|
|
|
|
|
if (present(fmt)) then
|
|
|
|
|
afmt=fmt
|
|
|
|
|
else
|
|
|
|
|
afmt = 'CSR'
|
|
|
|
|
endif
|
|
|
|
|
if (newt) then
|
|
|
|
|
|
|
|
|
|
call psb_barrier(ictxt)
|
|
|
|
|
t0 = mpi_wtime()
|
|
|
|
|
call psb_cdasb(desc_a,info)
|
|
|
|
|
t1 = mpi_wtime()
|
|
|
|
|
if(info/=0)then
|
|
|
|
|
info=4010
|
|
|
|
|
ch_err='psb_cdasb'
|
|
|
|
|
call psb_errpush(info,name,a_err=ch_err)
|
|
|
|
|
goto 9999
|
|
|
|
|
end if
|
|
|
|
|
|
|
|
|
|
call psb_barrier(ictxt)
|
|
|
|
|
t2 = mpi_wtime()
|
|
|
|
|
call psb_spasb(a,desc_a,info,dupl=psb_dupl_err_,afmt=afmt)
|
|
|
|
|
t3 = mpi_wtime()
|
|
|
|
|
if(info/=0)then
|
|
|
|
|
info=4010
|
|
|
|
|
ch_err='psb_spasb'
|
|
|
|
|
call psb_errpush(info,name,a_err=ch_err)
|
|
|
|
|
goto 9999
|
|
|
|
|
end if
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
if (iam == root) then
|
|
|
|
|
write(*,*) 'descriptor assembly: ',t1-t0
|
|
|
|
|
write(*,*) 'sparse matrix assembly: ',t3-t2
|
|
|
|
|
end if
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
else
|
|
|
|
|
call psb_spasb(a,desc_a,info,afmt=afmt,dupl=psb_dupl_err_)
|
|
|
|
|
if(info/=0)then
|
|
|
|
|
info=4010
|
|
|
|
|
ch_err='psspasb'
|
|
|
|
|
call psb_errpush(info,name,a_err=ch_err)
|
|
|
|
|
goto 9999
|
|
|
|
|
end if
|
|
|
|
|
endif
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
call psb_geasb(b,desc_a,info)
|
|
|
|
|
if(info/=0)then
|
|
|
|
|
info=4010
|
|
|
|
|
ch_err='psdsasb'
|
|
|
|
|
call psb_errpush(info,name,a_err=ch_err)
|
|
|
|
|
goto 9999
|
|
|
|
|
end if
|
|
|
|
|
deallocate(val,irow,icol,stat=info)
|
|
|
|
|
if(info/=0)then
|
|
|
|
|
info=4010
|
|
|
|
|
ch_err='deallocate'
|
|
|
|
|
call psb_errpush(info,name,a_err=ch_err)
|
|
|
|
|
goto 9999
|
|
|
|
|
end if
|
|
|
|
|
|
|
|
|
|
deallocate(iwork)
|
|
|
|
|
if (iam == root) write (*, fmt = *) 'end matdist'
|
|
|
|
|
|
|
|
|
|
call psb_erractionrestore(err_act)
|
|
|
|
|
return
|
|
|
|
|
|
|
|
|
|
9999 continue
|
|
|
|
|
call psb_erractionrestore(err_act)
|
|
|
|
|
if (err_act.eq.act_abort) then
|
|
|
|
|
call psb_error(ictxt)
|
|
|
|
|
return
|
|
|
|
|
end if
|
|
|
|
|
return
|
|
|
|
|
|
|
|
|
|
end subroutine zmatdistf
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
subroutine zmatdistv (a_glob, a, v, ictxt, desc_a,&
|
|
|
|
|
& b_glob, b, info, inroot,fmt)
|
|
|
|
|
!
|
|
|
|
|
! an utility subroutine to distribute a matrix among processors
|
|
|
|
|
! according to a user defined data distribution, using
|
|
|
|
|
! sparse matrix subroutines.
|
|
|
|
|
!
|
|
|
|
|
! type(d_spmat) :: a_glob
|
|
|
|
|
! on entry: this contains the global sparse matrix as follows:
|
|
|
|
|
! a%fida =='csr'
|
|
|
|
|
! a%aspk for coefficient values
|
|
|
|
|
! a%ia1 for column indices
|
|
|
|
|
! a%ia2 for row pointers
|
|
|
|
|
! a%m for number of global matrix rows
|
|
|
|
|
! a%k for number of global matrix columns
|
|
|
|
|
! on exit : undefined, with unassociated pointers.
|
|
|
|
|
!
|
|
|
|
|
! type(d_spmat) :: a
|
|
|
|
|
! on entry: fresh variable.
|
|
|
|
|
! on exit : this will contain the local sparse matrix.
|
|
|
|
|
!
|
|
|
|
|
! interface parts
|
|
|
|
|
! ! .....user passed subroutine.....
|
|
|
|
|
! subroutine parts(global_indx,n,np,pv,nv)
|
|
|
|
|
! implicit none
|
|
|
|
|
! integer, intent(in) :: global_indx, n, np
|
|
|
|
|
! integer, intent(out) :: nv
|
|
|
|
|
! integer, intent(out) :: pv(*)
|
|
|
|
|
!
|
|
|
|
|
! end subroutine parts
|
|
|
|
|
! end interface
|
|
|
|
|
! on entry: subroutine providing user defined data distribution.
|
|
|
|
|
! for each global_indx the subroutine should return
|
|
|
|
|
! the list pv of all processes owning the row with
|
|
|
|
|
! that index; the list will contain nv entries.
|
|
|
|
|
! usually nv=1; if nv >1 then we have an overlap in the data
|
|
|
|
|
! distribution.
|
|
|
|
|
!
|
|
|
|
|
! integer :: ictxt
|
|
|
|
|
! on entry: blacs context.
|
|
|
|
|
! on exit : unchanged.
|
|
|
|
|
!
|
|
|
|
|
! type (desc_type) :: desc_a
|
|
|
|
|
! on entry: fresh variable.
|
|
|
|
|
! on exit : the updated array descriptor
|
|
|
|
|
!
|
|
|
|
|
! real(kind(1.d0)), pointer, optional :: b_glob(:)
|
|
|
|
|
! on entry: this contains right hand side.
|
|
|
|
|
! on exit :
|
|
|
|
|
!
|
|
|
|
|
! real(kind(1.d0)), pointer, optional :: b(:)
|
|
|
|
|
! on entry: fresh variable.
|
|
|
|
|
! on exit : this will contain the local right hand side.
|
|
|
|
|
!
|
|
|
|
|
! integer, optional :: inroot
|
|
|
|
|
! on entry: specifies processor holding a_glob. default: 0
|
|
|
|
|
! on exit : unchanged.
|
|
|
|
|
!
|
|
|
|
|
use psb_sparse_mod
|
|
|
|
|
implicit none ! parameters
|
|
|
|
|
type(psb_zspmat_type) :: a_glob
|
|
|
|
|
complex(kind(1.d0)), pointer :: b_glob(:)
|
|
|
|
|
integer :: ictxt, v(:)
|
|
|
|
|
type(psb_zspmat_type) :: a
|
|
|
|
|
complex(kind(1.d0)), pointer :: b(:)
|
|
|
|
|
type(psb_desc_type) :: desc_a
|
|
|
|
|
integer, intent(out) :: info
|
|
|
|
|
integer, optional :: inroot
|
|
|
|
|
character(len=5), optional :: fmt
|
|
|
|
|
|
|
|
|
|
integer :: np, iam
|
|
|
|
|
integer :: ircode, length_row, i_count, j_count,&
|
|
|
|
|
& k_count, blockdim, root, liwork, nrow, ncol, nnzero, nrhs,&
|
|
|
|
|
& i,j,k, ll, nz, isize, iproc, nnr, err, err_act, int_err(5)
|
|
|
|
|
integer, pointer :: iwork(:)
|
|
|
|
|
character :: afmt*5, atyp*5
|
|
|
|
|
integer, allocatable :: irow(:),icol(:)
|
|
|
|
|
complex(kind(1.d0)), allocatable :: val(:)
|
|
|
|
|
integer, parameter :: nb=30
|
|
|
|
|
logical, parameter :: newt=.true.
|
|
|
|
|
real(kind(1.d0)) :: t0, t1, t2, t3, t4, t5, mpi_wtime
|
|
|
|
|
external :: mpi_wtime
|
|
|
|
|
character(len=20) :: name, ch_err
|
|
|
|
|
|
|
|
|
|
info = 0
|
|
|
|
|
err = 0
|
|
|
|
|
name = 'mat_distv'
|
|
|
|
|
call psb_erractionsave(err_act)
|
|
|
|
|
|
|
|
|
|
! executable statements
|
|
|
|
|
if (present(inroot)) then
|
|
|
|
|
root = inroot
|
|
|
|
|
else
|
|
|
|
|
root = 0
|
|
|
|
|
end if
|
|
|
|
|
|
|
|
|
|
call psb_info(ictxt, iam, np)
|
|
|
|
|
if (iam == root) then
|
|
|
|
|
! extract information from a_glob
|
|
|
|
|
if (toupper(a_glob%fida) /= 'CSR') then
|
|
|
|
|
info=135
|
|
|
|
|
ch_err='CSR'
|
|
|
|
|
call psb_errpush(info,name,a_err=ch_err)
|
|
|
|
|
goto 9999
|
|
|
|
|
endif
|
|
|
|
|
|
|
|
|
|
nrow = a_glob%m
|
|
|
|
|
ncol = a_glob%k
|
|
|
|
|
if (nrow /= ncol) then
|
|
|
|
|
write(0,*) 'a rectangular matrix ? ',nrow,ncol
|
|
|
|
|
info=-1
|
|
|
|
|
call psb_errpush(info,name)
|
|
|
|
|
goto 9999
|
|
|
|
|
endif
|
|
|
|
|
|
|
|
|
|
nnzero = size(a_glob%aspk)
|
|
|
|
|
nrhs = 1
|
|
|
|
|
end if
|
|
|
|
|
! broadcast informations to other processors
|
|
|
|
|
call psb_bcast(ictxt,nrow, root)
|
|
|
|
|
call psb_bcast(ictxt,ncol, root)
|
|
|
|
|
call psb_bcast(ictxt,nnzero, root)
|
|
|
|
|
call psb_bcast(ictxt,nrhs, root)
|
|
|
|
|
liwork = max(np, nrow + ncol)
|
|
|
|
|
allocate(iwork(liwork), stat = info)
|
|
|
|
|
if (info /= 0) then
|
|
|
|
|
write(0,*) 'matdist allocation failed'
|
|
|
|
|
info=2025
|
|
|
|
|
int_err(1)=liwork
|
|
|
|
|
call psb_errpush(info,name,i_err=int_err)
|
|
|
|
|
goto 9999
|
|
|
|
|
endif
|
|
|
|
|
|
|
|
|
|
call psb_cdall(nrow,v,ictxt,desc_a,info)
|
|
|
|
|
if(info/=0) then
|
|
|
|
|
info=4010
|
|
|
|
|
ch_err='psb_cdall'
|
|
|
|
|
call psb_errpush(info,name,a_err=ch_err)
|
|
|
|
|
goto 9999
|
|
|
|
|
end if
|
|
|
|
|
|
|
|
|
|
call psb_spall(a,desc_a,info,nnz=((nnzero+np-1)/np))
|
|
|
|
|
if(info/=0) then
|
|
|
|
|
info=4010
|
|
|
|
|
ch_err='psb_psspall'
|
|
|
|
|
call psb_errpush(info,name,a_err=ch_err)
|
|
|
|
|
goto 9999
|
|
|
|
|
end if
|
|
|
|
|
call psb_geall(b,desc_a,info)
|
|
|
|
|
if(info/=0) then
|
|
|
|
|
info=4010
|
|
|
|
|
ch_err='psb_psdsall'
|
|
|
|
|
call psb_errpush(info,name,a_err=ch_err)
|
|
|
|
|
goto 9999
|
|
|
|
|
end if
|
|
|
|
|
isize = max(3*nb,ncol)
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
allocate(val(nb*ncol),irow(nb*ncol),icol(nb*ncol),stat=info)
|
|
|
|
|
if(info/=0) then
|
|
|
|
|
info=4010
|
|
|
|
|
ch_err='Allocate'
|
|
|
|
|
call psb_errpush(info,name,a_err=ch_err)
|
|
|
|
|
goto 9999
|
|
|
|
|
end if
|
|
|
|
|
|
|
|
|
|
i_count = 1
|
|
|
|
|
|
|
|
|
|
do while (i_count <= nrow)
|
|
|
|
|
|
|
|
|
|
j_count = i_count
|
|
|
|
|
iproc = v(i_count)
|
|
|
|
|
|
|
|
|
|
do
|
|
|
|
|
j_count = j_count + 1
|
|
|
|
|
if (j_count-i_count >= nb) exit
|
|
|
|
|
if (j_count > nrow) exit
|
|
|
|
|
if (v(j_count) /= iproc ) exit
|
|
|
|
|
end do
|
|
|
|
|
|
|
|
|
|
! now we should insert rows i_count..j_count-1
|
|
|
|
|
nnr = j_count - i_count
|
|
|
|
|
|
|
|
|
|
if (iam == root) then
|
|
|
|
|
ll = 0
|
|
|
|
|
do i= i_count, j_count-1
|
|
|
|
|
call psb_sp_getrow(i,a_glob,nz,&
|
|
|
|
|
& irow(ll+1:),icol(ll+1:),val(ll+1:), info)
|
|
|
|
|
if (info /= 0) then
|
|
|
|
|
if (nz >min(size(irow(ll+1:)),size(icol(ll+1:)),size(val(ll+1:)))) then
|
|
|
|
|
write(0,*) 'Allocation failure? This should not happen!'
|
|
|
|
|
end if
|
|
|
|
|
call psb_errpush(info,name,a_err=ch_err)
|
|
|
|
|
goto 9999
|
|
|
|
|
end if
|
|
|
|
|
ll = ll + nz
|
|
|
|
|
end do
|
|
|
|
|
|
|
|
|
|
if (iproc == iam) then
|
|
|
|
|
call psb_spins(ll,irow,icol,val,a,desc_a,info)
|
|
|
|
|
if(info/=0) then
|
|
|
|
|
info=4010
|
|
|
|
|
ch_err='psb_spins'
|
|
|
|
|
call psb_errpush(info,name,a_err=ch_err)
|
|
|
|
|
goto 9999
|
|
|
|
|
end if
|
|
|
|
|
|
|
|
|
|
call psb_geins(nnr,(/(i,i=i_count,j_count-1)/),b_glob(i_count:j_count-1),&
|
|
|
|
|
& b,desc_a,info)
|
|
|
|
|
if(info/=0) then
|
|
|
|
|
info=4010
|
|
|
|
|
ch_err='dsins'
|
|
|
|
|
call psb_errpush(info,name,a_err=ch_err)
|
|
|
|
|
goto 9999
|
|
|
|
|
end if
|
|
|
|
|
else
|
|
|
|
|
call psb_snd(ictxt,nnr,iproc)
|
|
|
|
|
call psb_snd(ictxt,ll,iproc)
|
|
|
|
|
call psb_snd(ictxt,irow(1:ll),iproc)
|
|
|
|
|
call psb_snd(ictxt,icol(1:ll),iproc)
|
|
|
|
|
call psb_snd(ictxt,val(1:ll),iproc)
|
|
|
|
|
call psb_snd(ictxt,b_glob(i_count:j_count-1),iproc)
|
|
|
|
|
call psb_rcv(ictxt,ll,iproc)
|
|
|
|
|
endif
|
|
|
|
|
else if (iam /= root) then
|
|
|
|
|
|
|
|
|
|
if (iproc == iam) then
|
|
|
|
|
call psb_rcv(ictxt,nnr,root)
|
|
|
|
|
call psb_rcv(ictxt,ll,root)
|
|
|
|
|
if (ll > size(val)) then
|
|
|
|
|
write(0,*) iam,'need to reallocate ',ll
|
|
|
|
|
deallocate(val,irow,icol)
|
|
|
|
|
allocate(val(ll),irow(ll),icol(ll),stat=info)
|
|
|
|
|
if(info/=0) then
|
|
|
|
|
info=4010
|
|
|
|
|
ch_err='Allocate'
|
|
|
|
|
call psb_errpush(info,name,a_err=ch_err)
|
|
|
|
|
goto 9999
|
|
|
|
|
end if
|
|
|
|
|
endif
|
|
|
|
|
call psb_rcv(ictxt,irow(1:ll),root)
|
|
|
|
|
call psb_rcv(ictxt,icol(1:ll),root)
|
|
|
|
|
call psb_rcv(ictxt,val(1:ll),root)
|
|
|
|
|
call psb_rcv(ictxt,b_glob(i_count:i_count+nnr-1),root)
|
|
|
|
|
call psb_snd(ictxt,ll,root)
|
|
|
|
|
|
|
|
|
|
call psb_spins(ll,irow,icol,val,a,desc_a,info)
|
|
|
|
|
if(info/=0) then
|
|
|
|
|
info=4010
|
|
|
|
|
ch_err='spins'
|
|
|
|
|
call psb_errpush(info,name,a_err=ch_err)
|
|
|
|
|
goto 9999
|
|
|
|
|
end if
|
|
|
|
|
call psb_geins(nnr,(/(i,i=i_count,i_count+nnr-1)/),&
|
|
|
|
|
& b_glob(i_count:i_count+nnr-1),b,desc_a,info)
|
|
|
|
|
if(info/=0) then
|
|
|
|
|
info=4010
|
|
|
|
|
ch_err='psdsins'
|
|
|
|
|
call psb_errpush(info,name,a_err=ch_err)
|
|
|
|
|
goto 9999
|
|
|
|
|
end if
|
|
|
|
|
endif
|
|
|
|
|
endif
|
|
|
|
|
i_count = j_count
|
|
|
|
|
|
|
|
|
|
end do
|
|
|
|
|
|
|
|
|
|
! default storage format for sparse matrix; we do not
|
|
|
|
|
! expect duplicated entries.
|
|
|
|
|
|
|
|
|
|
if (present(fmt)) then
|
|
|
|
|
afmt=fmt
|
|
|
|
|
else
|
|
|
|
|
afmt = 'CSR'
|
|
|
|
|
endif
|
|
|
|
|
call psb_barrier(ictxt)
|
|
|
|
|
t0 = mpi_wtime()
|
|
|
|
|
call psb_cdasb(desc_a,info)
|
|
|
|
|
t1 = mpi_wtime()
|
|
|
|
|
if(info/=0)then
|
|
|
|
|
info=4010
|
|
|
|
|
ch_err='psb_cdasb'
|
|
|
|
|
call psb_errpush(info,name,a_err=ch_err)
|
|
|
|
|
goto 9999
|
|
|
|
|
end if
|
|
|
|
|
|
|
|
|
|
call psb_barrier(ictxt)
|
|
|
|
|
t2 = mpi_wtime()
|
|
|
|
|
call psb_spasb(a,desc_a,info,dupl=psb_dupl_err_,afmt=afmt)
|
|
|
|
|
t3 = mpi_wtime()
|
|
|
|
|
if(info/=0)then
|
|
|
|
|
info=4010
|
|
|
|
|
ch_err='psb_spasb'
|
|
|
|
|
call psb_errpush(info,name,a_err=ch_err)
|
|
|
|
|
goto 9999
|
|
|
|
|
end if
|
|
|
|
|
|
|
|
|
|
call psb_geasb(b,desc_a,info)
|
|
|
|
|
|
|
|
|
|
if (iam == root) then
|
|
|
|
|
write(*,'("Descriptor assembly : ",es10.4)')t1-t0
|
|
|
|
|
write(*,'("Sparse matrix assembly: ",es10.4)')t3-t2
|
|
|
|
|
end if
|
|
|
|
|
|
|
|
|
|
if(info/=0)then
|
|
|
|
|
info=4010
|
|
|
|
|
ch_err='psdsasb'
|
|
|
|
|
call psb_errpush(info,name,a_err=ch_err)
|
|
|
|
|
goto 9999
|
|
|
|
|
end if
|
|
|
|
|
|
|
|
|
|
deallocate(iwork)
|
|
|
|
|
|
|
|
|
|
call psb_erractionrestore(err_act)
|
|
|
|
|
return
|
|
|
|
|
|
|
|
|
|
9999 continue
|
|
|
|
|
call psb_erractionrestore(err_act)
|
|
|
|
|
if (err_act.eq.act_abort) then
|
|
|
|
|
call psb_error(ictxt)
|
|
|
|
|
return
|
|
|
|
|
end if
|
|
|
|
|
return
|
|
|
|
|
|
|
|
|
|
end subroutine zmatdistv
|
|
|
|
|
|
|
|
|
|
end module mat_dist
|
