psblas3/base/serial/psb_sipcsr2coo.f90

!!$ 
!!$              Parallel Sparse BLAS  version 2.2
!!$    (C) Copyright 2006/2007/2008
!!$                       Salvatore Filippone    University of Rome Tor Vergata
!!$                       Alfredo Buttari        University of Rome Tor Vergata
!!$ 
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! File:  psb_sipcsr2coo.f90 
! Subroutine: 
! Arguments:

Subroutine psb_sipcsr2coo(a,info)
  use psb_spmat_type
  use psb_const_mod
  use psb_error_mod
  use psb_string_mod
  use psb_realloc_mod
  use psb_serial_mod, psb_protect_name => psb_sipcsr2coo
  implicit none

  !....Parameters...
  Type(psb_sspmat_type), intent(inout) :: A
  Integer, intent(out)                 :: info

  !locals
  Integer              :: nza, nr
  integer              :: i,j,err_act
  integer, allocatable :: iaux(:), itemp(:)
  character(len=20)    :: name='psb_sipcsr2coo'

  info  = 0
  call psb_erractionsave(err_act)

  if (psb_toupper(a%fida) /= 'CSR') then 
    info = 5
    call psb_errpush(info,name)
    goto 9999
  end if

  nr  = a%m 
  nza = a%ia2(nr+1) - 1
  allocate(iaux(max(nza,1)),stat=info)
  if (info /= 0) then 
    info=4025
    call psb_errpush(info,name,a_err='integer',i_err=(/max(nza,1),0,0,0,0/))
    goto 9999      
  end if
!!$  write(0,*) 'ipcsr2coo ',a%m      
  call psb_transfer(a%ia2,itemp,info)
  call psb_transfer(a%ia1,a%ia2,info)
  call psb_transfer(iaux,a%ia1,info)
  
  do i=1, nr
    do j=itemp(i),itemp(i+1)-1
      a%ia1(j) = i
    end do
  end do
  
  a%fida='COO'
  a%infoa(psb_nnz_) = nza
  a%infoa(psb_srtd_) = psb_isrtdcoo_
  a%infoa(psb_upd_) = psb_upd_srch_

  deallocate(itemp)
  call psb_fixcoo(a,info) 

  call psb_erractionrestore(err_act)
  return

9999 continue
  call psb_erractionrestore(err_act)
  if (err_act == psb_act_abort_) then
     call psb_error()
     return
  end if
  return

end Subroutine psb_sipcsr2coo