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psblas3/krylov/psb_krylov_mod.f90

112 lines
5.4 KiB
Fortran

!!$
!!$ Parallel Sparse BLAS version 3.0
!!$ (C) Copyright 2006, 2007, 2008, 2009, 2010
!!$ Salvatore Filippone University of Rome Tor Vergata
!!$ Alfredo Buttari CNRS-IRIT, Toulouse
!!$
!!$ 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
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!!$ 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_krylov_mod.f90
! Interfaces for Krylov subspace iterative methods.
!
Module psb_krylov_mod
use psb_const_mod
public
interface psb_krylov
Subroutine psb_skrylov(method,a,prec,b,x,eps,desc_a,info,itmax,iter,err,itrace,irst,istop,cond)
use psb_sparse_mod, only : psb_desc_type, psb_s_sparse_mat, psb_spk_
use psb_prec_mod,only : psb_sprec_type, psb_dprec_type, psb_cprec_type, psb_zprec_type
character(len=*) :: method
Type(psb_s_sparse_mat), Intent(in) :: a
Type(psb_desc_type), Intent(in) :: desc_a
class(psb_sprec_type), intent(in) :: prec
Real(psb_spk_), Intent(in) :: b(:)
Real(psb_spk_), Intent(inout) :: x(:)
Real(psb_spk_), Intent(in) :: eps
integer, intent(out) :: info
Integer, Optional, Intent(in) :: itmax, itrace, irst,istop
Integer, Optional, Intent(out) :: iter
Real(psb_spk_), Optional, Intent(out) :: err,cond
end Subroutine psb_skrylov
Subroutine psb_ckrylov(method,a,prec,b,x,eps,desc_a,info,itmax,iter,err,itrace,irst,istop)
use psb_sparse_mod, only : psb_desc_type, psb_c_sparse_mat, psb_spk_
use psb_prec_mod,only : psb_sprec_type, psb_dprec_type, psb_cprec_type, psb_zprec_type
character(len=*) :: method
Type(psb_c_sparse_mat), Intent(in) :: a
Type(psb_desc_type), Intent(in) :: desc_a
class(psb_cprec_type), intent(in) :: prec
complex(psb_spk_), Intent(in) :: b(:)
complex(psb_spk_), Intent(inout) :: x(:)
Real(psb_spk_), Intent(in) :: eps
integer, intent(out) :: info
Integer, Optional, Intent(in) :: itmax, itrace, irst,istop
Integer, Optional, Intent(out) :: iter
Real(psb_spk_), Optional, Intent(out) :: err
end Subroutine psb_ckrylov
Subroutine psb_dkrylov(method,a,prec,b,x,eps,desc_a,info,itmax,iter,err,itrace,irst,istop,cond)
use psb_sparse_mod, only : psb_desc_type, psb_d_sparse_mat, psb_dpk_
use psb_prec_mod,only : psb_sprec_type, psb_dprec_type, psb_cprec_type, psb_zprec_type
character(len=*) :: method
Type(psb_d_sparse_mat), Intent(in) :: a
Type(psb_desc_type), Intent(in) :: desc_a
class(psb_dprec_type), intent(in) :: prec
Real(psb_dpk_), Intent(in) :: b(:)
Real(psb_dpk_), Intent(inout) :: x(:)
Real(psb_dpk_), Intent(in) :: eps
integer, intent(out) :: info
Integer, Optional, Intent(in) :: itmax, itrace, irst,istop
Integer, Optional, Intent(out) :: iter
Real(psb_dpk_), Optional, Intent(out) :: err,cond
end Subroutine psb_dkrylov
Subroutine psb_zkrylov(method,a,prec,b,x,eps,desc_a,info,itmax,iter,err,itrace,irst,istop)
use psb_sparse_mod, only : psb_desc_type, psb_z_sparse_mat, psb_dpk_
use psb_prec_mod,only : psb_sprec_type, psb_dprec_type, psb_cprec_type, psb_zprec_type
character(len=*) :: method
Type(psb_z_sparse_mat), Intent(in) :: a
Type(psb_desc_type), Intent(in) :: desc_a
class(psb_zprec_type), intent(in) :: prec
complex(psb_dpk_), Intent(in) :: b(:)
complex(psb_dpk_), Intent(inout) :: x(:)
Real(psb_dpk_), Intent(in) :: eps
integer, intent(out) :: info
Integer, Optional, Intent(in) :: itmax, itrace, irst,istop
Integer, Optional, Intent(out) :: iter
Real(psb_dpk_), Optional, Intent(out) :: err
end Subroutine psb_zkrylov
end interface
end module psb_krylov_mod