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psblas3/ext/impl/psb_d_cp_hll_to_coo.f90

105 lines
3.4 KiB
Fortran

! Parallel Sparse BLAS GPU plugin
! (C) Copyright 2013
!
! Salvatore Filippone
! Alessandro Fanfarillo
!
! 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_d_cp_hll_to_coo(a,b,info)
use psb_base_mod
use psb_d_hll_mat_mod, psb_protect_name => psb_d_cp_hll_to_coo
implicit none
class(psb_d_hll_sparse_mat), intent(in) :: a
class(psb_d_coo_sparse_mat), intent(inout) :: b
integer(psb_ipk_), intent(out) :: info
!locals
Integer(Psb_ipk_) :: nza, nr, nc,i,j, jj,k,ir, isz,err_act, hksz, hk, mxrwl,&
& irs, nzblk, kc
integer(psb_ipk_) :: debug_level, debug_unit
character(len=20) :: name
info = psb_success_
if (a%is_dev()) call a%sync()
nr = a%get_nrows()
nc = a%get_ncols()
nza = a%get_nzeros()
call b%allocate(nr,nc,nza)
b%psb_d_base_sparse_mat = a%psb_d_base_sparse_mat
j = 1
kc = 1
k = 1
hksz = a%hksz
do i=1, nr,hksz
ir = min(hksz,nr-i+1)
irs = (i-1)/hksz
hk = irs + 1
isz = (a%hkoffs(hk+1)-a%hkoffs(hk))
nzblk = sum(a%irn(i:i+ir-1))
call inner_copy(i,ir,b%ia(kc:kc+nzblk-1),&
& b%ja(kc:kc+nzblk-1),b%val(kc:kc+nzblk-1),&
& a%ja(k:k+isz-1),a%val(k:k+isz-1),a%irn(i:i+ir-1),&
& hksz)
k = k + isz
kc = kc + nzblk
enddo
call b%set_nzeros(nza)
call b%set_host()
call b%fix(info)
contains
subroutine inner_copy(i,ir,iac,&
& jac,valc,ja,val,irn,ld)
integer(psb_ipk_) :: i,ir,ld
integer(psb_ipk_) :: iac(*),jac(*),ja(ld,*),irn(*)
real(psb_dpk_) :: valc(*), val(ld,*)
integer(psb_ipk_) :: ii,jj,kk, kc,nc
kc = 1
do ii = 1, ir
nc = irn(ii)
do jj=1,nc
iac(kc) = i+ii-1
jac(kc) = ja(ii,jj)
valc(kc) = val(ii,jj)
kc = kc + 1
end do
end do
end subroutine inner_copy
end subroutine psb_d_cp_hll_to_coo