amg4psblas/mlprec/mld_s_ilu_fact_mod.f90

!  
!   
!                             MLD2P4  version 2.1
!    MultiLevel Domain Decomposition Parallel Preconditioners Package
!               based on PSBLAS (Parallel Sparse BLAS version 3.4)
!    
!    (C) Copyright 2008, 2010, 2012, 2015, 2017 
!  
!        Salvatore Filippone    Cranfield University
!        Ambra Abdullahi Hassan University of Rome Tor Vergata
!        Alfredo Buttari        CNRS-IRIT, Toulouse
!        Pasqua D'Ambra         ICAR-CNR, Naples
!        Daniela di Serafino    University of Campania "L. Vanvitelli", Caserta
!   
!    Redistribution and use in source and binary forms, with or without
!    modification, are permitted provided that the following conditions
!    are met:
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!      2. Redistributions in binary form must reproduce the above copyright
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!         documentation and/or other materials provided with the distribution.
!      3. The name of the MLD2P4 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
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!   
!  
!
!
! File: mld_s_ilu_fact_mod.f90
!
! Module: mld_s_ilu_fact_mod
!
!  This module defines some interfaces used internally by the implementation if
!  mld_s_ilu_solver, but not visible to the end user. 
!
!
module mld_s_ilu_fact_mod

  use mld_s_base_solver_mod 

  interface mld_ilu0_fact
    subroutine mld_silu0_fact(ialg,a,l,u,d,info,blck,upd)
      import psb_sspmat_type, psb_spk_, psb_ipk_
      integer(psb_ipk_), intent(in)         :: ialg
      integer(psb_ipk_), intent(out)        :: info
      type(psb_sspmat_type),intent(in)      :: a
      type(psb_sspmat_type),intent(inout)   :: l,u
      type(psb_sspmat_type),intent(in), optional, target :: blck
      character, intent(in), optional       :: upd
      real(psb_spk_), intent(inout)      :: d(:)
    end subroutine mld_silu0_fact
  end interface

  interface mld_iluk_fact
    subroutine mld_siluk_fact(fill_in,ialg,a,l,u,d,info,blck)
      import psb_sspmat_type, psb_spk_, psb_ipk_
      integer(psb_ipk_), intent(in)        :: fill_in,ialg
      integer(psb_ipk_), intent(out)       :: info
      type(psb_sspmat_type),intent(in)     :: a
      type(psb_sspmat_type),intent(inout)  :: l,u
      type(psb_sspmat_type),intent(in), optional, target :: blck
      real(psb_spk_), intent(inout)     ::  d(:)
    end subroutine mld_siluk_fact
  end interface

  interface mld_ilut_fact
    subroutine mld_silut_fact(fill_in,thres,a,l,u,d,info,blck,iscale)
      import  psb_sspmat_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_sspmat_type),intent(in)     :: a
      type(psb_sspmat_type),intent(inout)  :: l,u
      real(psb_spk_), intent(inout)     :: d(:)
      type(psb_sspmat_type),intent(in), optional, target :: blck
      integer(psb_ipk_), intent(in), optional  :: iscale
    end subroutine mld_silut_fact
  end interface

end module mld_s_ilu_fact_mod