amg4psblas/mlprec/amg_c_ilu_fact_mod.f90

!  
!   
!                             MLD2P4  version 2.2
!    MultiLevel Domain Decomposition Parallel Preconditioners Package
!               based on PSBLAS (Parallel Sparse BLAS version 3.5)
!    
!    (C) Copyright 2008-2018 
!  
!        Salvatore Filippone  
!        Pasqua D'Ambra   
!        Daniela di Serafino   
!   
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!    modification, are permitted provided that the following conditions
!    are met:
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!         software without specific written permission.
!   
!    THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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!
! File: amg_c_ilu_fact_mod.f90
!
! Module: amg_c_ilu_fact_mod
!
!  This module defines some interfaces used internally by the implementation of
!  amg_c_ilu_solver, but not visible to the end user. 
!
!
module amg_c_ilu_fact_mod

  use amg_c_base_solver_mod 

  interface amg_ilu0_fact
    subroutine amg_cilu0_fact(ialg,a,l,u,d,info,blck,upd)
      import psb_cspmat_type, psb_spk_, psb_ipk_
      integer(psb_ipk_), intent(in)         :: ialg
      integer(psb_ipk_), intent(out)        :: info
      type(psb_cspmat_type),intent(in)      :: a
      type(psb_cspmat_type),intent(inout)   :: l,u
      type(psb_cspmat_type),intent(in), optional, target :: blck
      character, intent(in), optional       :: upd
      complex(psb_spk_), intent(inout)      :: d(:)
    end subroutine amg_cilu0_fact
  end interface

  interface amg_iluk_fact
    subroutine amg_ciluk_fact(fill_in,ialg,a,l,u,d,info,blck)
      import psb_cspmat_type, psb_spk_, psb_ipk_
      integer(psb_ipk_), intent(in)        :: fill_in,ialg
      integer(psb_ipk_), intent(out)       :: info
      type(psb_cspmat_type),intent(in)     :: a
      type(psb_cspmat_type),intent(inout)  :: l,u
      type(psb_cspmat_type),intent(in), optional, target :: blck
      complex(psb_spk_), intent(inout)     ::  d(:)
    end subroutine amg_ciluk_fact
  end interface

  interface amg_ilut_fact
    subroutine amg_cilut_fact(fill_in,thres,a,l,u,d,info,blck,iscale)
      import  psb_cspmat_type, psb_spk_, psb_ipk_
      integer(psb_ipk_), intent(in)        :: fill_in
      real(psb_spk_), intent(in)           :: thres
      integer(psb_ipk_), intent(out)       :: info
      type(psb_cspmat_type),intent(in)     :: a
      type(psb_cspmat_type),intent(inout)  :: l,u
      complex(psb_spk_), intent(inout)     :: d(:)
      type(psb_cspmat_type),intent(in), optional, target :: blck
      integer(psb_ipk_), intent(in), optional  :: iscale
    end subroutine amg_cilut_fact
  end interface

end module amg_c_ilu_fact_mod