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psblas3/base/serial/psb_dcsdp.f90

516 lines
15 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.
!!$
!!$
! File: psb_dcsdp.f90
!
! Subroutine: psb_dcsdp
! This subroutine performs the assembly of
! the local part of a sparse distributed matrix
!
! Parameters:
! a - type(<psb_spmat_type>). The input matrix to be assembled.
! b - type(<psb_spmat_type>). The assembled output matrix.
! info - integer. Eventually returns an error code.
! ifc - integer(optional). ???
! check - character(optional). ???
! trans - character(optional). ???
! unitd - character(optional). ???
!
subroutine psb_dcsdp(a, b,info,ifc,check,trans,unitd,upd,dupl)
use psb_const_mod
use psb_error_mod
use psb_spmat_type
use psb_string_mod
use psb_serial_mod, psb_protect_name => psb_dcsdp
implicit none
!....Parameters...
Type(psb_dspmat_type), intent(in) :: A
Type(psb_dspmat_type), intent(inout) :: B
Integer, intent(out) :: info
Integer, intent(in), optional :: ifc,upd,dupl
character, intent(in), optional :: check,trans,unitd
!...Locals...
real(kind(1.d0)) :: d(1)
real(kind(1.d0)), allocatable :: work(:)
type(psb_dspmat_type) :: temp_a
Integer :: nzr, ntry, ifc_, ia1_size,&
& ia2_size, aspk_size,size_req,n_row,n_col,upd_,dupl_
integer :: ip1, ip2, nnz, iflag, ichk, nnzt,&
& ipc, i, count, err_act, i1, i2, ia
character :: check_,trans_,unitd_
Integer, Parameter :: maxtry=8
logical, parameter :: debug=.false.
character(len=20) :: name, ch_err
name='psb_csdp'
info = 0
call psb_erractionsave(err_act)
ntry=0
if (present(ifc)) then
ifc_ = max(1,ifc)
else
ifc_ = 1
endif
if (present(check)) then
check_ = toupper(check)
else
check_ = 'N'
endif
if (present(trans)) then
trans_ = toupper(trans)
else
trans_ = 'N'
endif
if (present(unitd)) then
unitd_ = toupper(unitd)
else
unitd_ = 'U'
endif
if (check_=='R') then
allocate(work(max(size(a%aspk),size(b%aspk))+1000),stat=info)
else
allocate(work(max(size(a%ia1),size(a%ia2))+max(a%m,b%m)+1000),stat=info)
endif
if (info /= 0) then
info=2040
call psb_errpush(info,name)
goto 9999
end if
if (ifc_<1) then
write(0,*) 'csdp90 Error: invalid ifc ',ifc_
info = -4
call psb_errpush(info,name)
goto 9999
endif
if((check_=='Y').or.(check_=='C')) then
if(toupper(a%fida(1:3))=='CSR') then
call dcsrck(trans,a%m,a%k,a%descra,a%aspk,a%ia1,a%ia2,work,size(work),info)
if(info /= 0) then
info=4010
ch_err='dcsrck'
call psb_errpush(info,name,a_err=ch_err)
goto 9999
end if
else
write(0,'("Check not yet suported for the ",a3," storage format")')a%fida(1:3)
end if
end if
if (check_/='R') then
if (present(upd)) then
call psb_sp_setifld(upd,psb_upd_,b,info)
end if
if (present(dupl)) then
call psb_sp_setifld(dupl,psb_dupl_,b,info)
end if
upd_ = psb_sp_getifld(psb_upd_,b,info)
select case(upd_)
case(psb_upd_dflt_,psb_upd_srch_,psb_upd_perm_)
! Legal value, do nothing
case default
! Fix bad value
upd_ = psb_upd_dflt_
call psb_sp_setifld(upd_,psb_upd_,b,info)
end select
dupl_ = psb_sp_getifld(psb_dupl_,b,info)
select case(dupl_)
case(psb_dupl_ovwrt_,psb_dupl_add_,psb_dupl_err_)
! Legal value, do nothing
case default
! Fix bad value
dupl_ = psb_dupl_def_
call psb_sp_setifld(dupl_,psb_dupl_,b,info)
end select
! ...matrix conversion...
b%m=a%m
b%k=a%k
size_req = psb_sp_get_nnzeros(a)
if (debug) write(0,*) 'DCSDP : size_req 1:',size_req
!
n_row=b%m
n_col=b%k
call psb_cest(b%fida, n_row,n_col,size_req,&
& ia1_size, ia2_size, aspk_size, upd_,info)
if (info /= psb_no_err_) then
info=4010
ch_err='psb_cest'
call psb_errpush(info,name,a_err=ch_err)
goto 9999
endif
if (.not.allocated(b%aspk).or.&
&.not.allocated(b%ia1).or.&
&.not.allocated(b%ia2).or.&
&.not.allocated(b%pl).or.&
&.not.allocated(b%pr)) then
call psb_sp_reall(b,ia1_size,ia2_size,aspk_size,info)
else if ((size(b%aspk) < aspk_size) .or.&
&(size(b%ia1) < ia1_size) .or.&
&(size(b%ia2) < ia2_size) .or.&
&(size(b%pl) < b%m) .or.&
&(size(b%pr) < b%k )) then
call psb_sp_reall(b,ia1_size,ia2_size,aspk_size,info)
endif
if (info /= psb_no_err_) then
info=4010
ch_err='psb_sp_reall'
call psb_errpush(info,name,a_err=ch_err)
goto 9999
endif
b%pl(:) = 0
b%pr(:) = 0
b%descra = a%descra
select case (toupper(a%fida(1:3)))
case ('CSR')
select case (toupper(b%fida(1:3)))
case ('CSR')
call dcrcr(trans_, a%m, a%k, unitd_, d, a%descra, a%aspk,&
& a%ia1, a%ia2, a%infoa, b%pl, b%descra, b%aspk, b%ia1,&
& b%ia2, b%infoa, b%pr, size(b%aspk), size(b%ia1),&
& size(b%ia2), work, size(work), info)
if (info/=0) then
info=4010
ch_err='dcrcr'
call psb_errpush(info,name,a_err=ch_err)
goto 9999
end if
case ('JAD')
!...converting to JAD
!...output matrix may not be big enough
do
call dcrjd(trans_, a%m, a%k, unitd_, d, a%descra, a%aspk,&
& a%ia1, a%ia2, a%infoa, b%pl, b%descra, b%aspk, b%ia1,&
& b%ia2, b%infoa, b%pr, size(b%aspk), size(b%ia1),&
& size(b%ia2), work, size(work), nzr, info)
if (info /= 0) then
call psb_errpush(4010,name,a_err='dcrjd')
goto 9999
endif
ntry = ntry + 1
if (debug) then
write(0,*) 'On out from dcrjad ',nzr,info
end if
if (nzr == 0) exit
if (ntry > maxtry ) then
write(0,*) 'Tried reallocating for DCRJAD for ',maxtry,': giving up now.'
info=2040
call psb_errpush(info,name)
goto 9999
endif
call psb_sp_reall(b,nzr,info,ifc=ifc_)
if (info /= 0) then
info=2040
call psb_errpush(info,name)
goto 9999
endif
end do
if (info/=0) then
call psb_errpush(info,name)
goto 9999
end if
case ('COO')
if (debug) write(0,*) 'Calling CRCO ',a%descra
call dcrco(trans_, a%m, a%k, unitd_, d, a%descra, a%aspk,&
& a%ia1, a%ia2, a%infoa, b%pl, b%descra, b%aspk, b%ia1,&
& b%ia2, b%infoa, b%pr, size(b%aspk), size(b%ia1),&
& size(b%ia2), work, size(work), info)
if (info/=0) then
call psb_errpush(4010,name,a_err='dcrco')
goto 9999
end if
case default
info=4010
call psb_errpush(info,name)
goto 9999
end select
case ('COO','COI')
select case (toupper(b%fida(1:3)))
case ('CSR')
call dcocr(trans_, a%m, a%k, unitd_, d, a%descra, a%aspk,&
& a%ia2, a%ia1, a%infoa, b%pl, b%descra, b%aspk, b%ia1,&
& b%ia2, b%infoa, b%pr, size(b%aspk), size(b%ia1),&
& size(b%ia2), work, 2*size(work), info)
if (info/=0) then
call psb_errpush(4010,name,a_err='dcocr')
goto 9999
end if
case ('JAD')
call psb_sp_all(temp_a, size(b%ia1),size(b%ia2),size(b%aspk),info)
if (info /= 0) then
info=2040
call psb_errpush(info,name)
goto 9999
endif
temp_a%m = a%m
temp_a%k = a%k
!...Dirty trick: converting to CSR and then to JAD
call dcocr(trans_, a%m, a%k, unitd_, d, a%descra, a%aspk,&
& a%ia2, a%ia1, a%infoa, temp_a%pl, temp_a%descra, &
& temp_a%aspk, temp_a%ia1, temp_a%ia2, temp_a%infoa, temp_a%pr, &
& size(temp_a%aspk), size(temp_a%ia1),&
& size(temp_a%ia2), work, 2*size(work), info)
if (info/=0) then
call psb_errpush(4010,name,a_err='dcocr')
goto 9999
end if
do
call dcrjd(trans_, temp_a%m, temp_a%k, unitd_, d, temp_a%descra, &
& temp_a%aspk, temp_a%ia1, temp_a%ia2, temp_a%infoa, &
& b%pl, b%descra, b%aspk, b%ia1, b%ia2, b%infoa, b%pr, &
& size(b%aspk), size(b%ia1),&
& size(b%ia2), work, size(work), nzr, info)
if (info/=0) then
call psb_errpush(4010,name,a_err='dcrjd')
goto 9999
end if
ntry = ntry + 1
if (debug) then
write(0,*) 'On out from dcrjad ',nzr,info
end if
if (nzr == 0) exit
if (ntry > maxtry ) then
write(0,*) 'Tried reallocating for DCRJAD for ',maxtry,&
& ': giving up now.'
info=2040
call psb_errpush(info,name)
goto 9999
endif
call psb_sp_reall(b,nzr,info,ifc=ifc_)
if (info /= 0) then
info=2040
call psb_errpush(info,name)
goto 9999
endif
end do
case ('COO')
call dcoco(trans_, a%m, a%k, unitd_, d, a%descra, a%aspk,&
& a%ia1, a%ia2, a%infoa, b%pl, b%descra, b%aspk, b%ia1,&
& b%ia2, b%infoa, b%pr, size(b%aspk), size(b%ia1),&
& size(b%ia2), work, 2*size(work), info)
if (info/=0) then
call psb_errpush(4010,name,a_err='dcoco')
goto 9999
end if
case default
info=4010
call psb_errpush(info,name)
goto 9999
end select
case default
info=4010
call psb_errpush(info,name)
goto 9999
end select
if (psb_sp_getifld(psb_upd_,b,info) /= psb_upd_perm_) &
& call psb_sp_trim(b,info)
else if (check_=='R') then
!...Regenerating matrix
if (psb_sp_getifld(psb_state_,b,info) /= psb_spmat_upd_) then
info = 8888
call psb_errpush(info,name)
goto 9999
endif
!
! dupl_ and upd_ fields should not be changed.
!
select case(psb_sp_getifld(psb_upd_,b,info))
case(psb_upd_perm_)
if (debug) write(0,*) 'Regeneration with psb_upd_perm_'
if (toupper(b%fida(1:3))/='JAD') then
ip1 = psb_sp_getifld(psb_upd_pnt_,b,info)
ip2 = b%ia2(ip1+psb_ip2_)
nnz = b%ia2(ip1+psb_nnz_)
iflag = b%ia2(ip1+psb_iflag_)
ichk = b%ia2(ip1+psb_ichk_)
nnzt = b%ia2(ip1+psb_nnzt_)
if (debug) write(*,*) 'Regeneration start: ',&
& b%infoa(psb_upd_),psb_upd_perm_,nnz,nnzt ,iflag,info
if ((ichk/=nnzt+iflag).or.(nnz/=nnzt)) then
info = 8889
write(*,*) 'Regeneration start error: ',&
& b%infoa(psb_upd_),psb_upd_perm_,nnz,nnzt ,iflag,ichk
call psb_errpush(info,name)
goto 9999
endif
do i= 1, nnz
work(i) = 0.d0
enddo
select case(iflag)
case(psb_dupl_ovwrt_,psb_dupl_err_)
do i=1, nnz
work(b%ia2(ip2+i-1)) = b%aspk(i)
enddo
case(psb_dupl_add_)
do i=1, nnz
work(b%ia2(ip2+i-1)) = b%aspk(i) + work(b%ia2(ip2+i-1))
enddo
case default
info = 8887
call psb_errpush(info,name)
goto 9999
end select
do i=1, nnz
b%aspk(i) = work(i)
enddo
else if (toupper(b%fida(1:3)) == 'JAD') then
ip1 = psb_sp_getifld(psb_upd_pnt_,b,info)
ip2 = b%ia1(ip1+psb_ip2_)
count = b%ia1(ip1+psb_zero_)
ipc = b%ia1(ip1+psb_ipc_)
nnz = b%ia1(ip1+psb_nnz_)
iflag = b%ia1(ip1+psb_iflag_)
ichk = b%ia1(ip1+psb_ichk_)
nnzt = b%ia1(ip1+psb_nnzt_)
if (debug) write(*,*) 'Regeneration start: ',&
& b%infoa(psb_upd_),psb_upd_perm_,nnz,nnzt,count, &
& iflag,info
if ((ichk/=nnzt+iflag).or.(nnz/=nnzt)) then
info = 10
write(*,*) 'Regeneration start error: ',&
& b%infoa(psb_upd_),psb_upd_perm_,nnz,nnzt ,iflag,ichk
call psb_errpush(info,name)
goto 9999
endif
do i= 1, nnz+count
work(i) = 0.d0
enddo
select case(iflag)
case(psb_dupl_ovwrt_,psb_dupl_err_)
do i=1, nnz
work(b%ia1(ip2+i-1)) = b%aspk(i)
enddo
case(psb_dupl_add_)
do i=1, nnz
work(b%ia1(ip2+i-1)) = b%aspk(i) + work(b%ia1(ip2+i-1))
enddo
case default
info = 8887
call psb_errpush(info,name)
goto 9999
end select
do i=1, nnz+count
b%aspk(i) = work(i)
enddo
do i=1, count
b%aspk(b%ia1(ipc+i-1)) = 0.d0
end do
endif
case(psb_upd_dflt_,psb_upd_srch_)
! Nothing to be done here.
if (debug) write(0,*) 'Going through on regeneration with psb_upd_srch_'
case default
! Wrong value
info = 8888
call psb_errpush(info,name)
goto 9999
end select
end if
call psb_sp_setifld(psb_spmat_asb_,psb_state_,b,info)
call psb_erractionrestore(err_act)
return
9999 continue
call psb_erractionrestore(err_act)
if (err_act.eq.psb_act_abort_) then
call psb_error()
return
end if
return
end subroutine psb_dcsdp