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RTOpPack_TOpEleWiseProdUpdate.hpp
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00001 // @HEADER
00002 // ***********************************************************************
00003 // 
00004 // RTOp: Interfaces and Support Software for Vector Reduction Transformation
00005 //       Operations
00006 //                Copyright (2006) Sandia Corporation
00007 // 
00008 // Under terms of Contract DE-AC04-94AL85000, there is a non-exclusive
00009 // license for use of this work by or on behalf of the U.S. Government.
00010 // 
00011 // This library is free software; you can redistribute it and/or modify
00012 // it under the terms of the GNU Lesser General Public License as
00013 // published by the Free Software Foundation; either version 2.1 of the
00014 // License, or (at your option) any later version.
00015 //  
00016 // This library is distributed in the hope that it will be useful, but
00017 // WITHOUT ANY WARRANTY; without even the implied warranty of
00018 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00019 // Lesser General Public License for more details.
00020 //  
00021 // You should have received a copy of the GNU Lesser General Public
00022 // License along with this library; if not, write to the Free Software
00023 // Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
00024 // USA
00025 // Questions? Contact Roscoe A. Bartlett (rabartl@sandia.gov) 
00026 // 
00027 // ***********************************************************************
00028 // @HEADER
00029 
00030 #ifndef RTOPPACK_TOP_ELE_WISE_PROD_UPDATE_HPP
00031 #define RTOPPACK_TOP_ELE_WISE_PROD_UPDATE_HPP
00032 
00033 #include "RTOpPack_RTOpTHelpers.hpp"
00034 
00035 
00036 namespace RTOpPack {
00037 
00038 
00040 template<class Scalar>
00041 class TOpEleWiseProdUpdateEleWiseTransformation
00042 {
00043 public:
00044   TOpEleWiseProdUpdateEleWiseTransformation( const Scalar &alpha )
00045     : alpha_(alpha)
00046     {}
00047   void operator()( const Scalar &v0, Scalar &z0 ) const
00048     {
00049       z0 *= alpha_ * v0;
00050     }
00051 private:
00052   Scalar alpha_;
00053 };
00054 
00055 
00059 template<class Scalar>
00060 class TOpEleWiseProdUpdate
00061   : public TOp_1_1_Base<Scalar, TOpEleWiseProdUpdateEleWiseTransformation<Scalar> >
00062 {
00063 public:
00064   typedef TOp_1_1_Base<Scalar, TOpEleWiseProdUpdateEleWiseTransformation<Scalar> > base_t;
00066   TOpEleWiseProdUpdate( const Scalar &alpha )
00067     : base_t(TOpEleWiseProdUpdateEleWiseTransformation<Scalar>(alpha))
00068     {
00069       this->setOpNameBase("TOpEleWiseProdUpdate");
00070     }
00071 };
00072 
00073 
00074 } // namespace RTOpPack
00075 
00076 
00077 #endif // RTOPPACK_TOP_ELE_WISE_PROD_UPDATE_HPP
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