Collection of Concrete Vector Reduction/Transformation Operator Implementations
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src
ops_lib
RTOpPack_ROpWeightedNorm2.hpp
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// @HEADER
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// ***********************************************************************
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//
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// RTOp: Interfaces and Support Software for Vector Reduction Transformation
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// Operations
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// Copyright (2006) Sandia Corporation
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//
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// Under terms of Contract DE-AC04-94AL85000, there is a non-exclusive
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// license for use of this work by or on behalf of the U.S. Government.
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//
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// Redistribution and use in source and binary forms, with or without
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// modification, are permitted provided that the following conditions are
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// met:
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//
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// 1. Redistributions of source code must retain the above copyright
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// notice, this list of conditions and the following disclaimer.
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//
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// 2. Redistributions in binary form must reproduce the above copyright
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// notice, this list of conditions and the following disclaimer in the
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// documentation and/or other materials provided with the distribution.
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//
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// 3. Neither the name of the Corporation nor the names of the
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// contributors may be used to endorse or promote products derived from
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// this software without specific prior written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY SANDIA CORPORATION "AS IS" AND ANY
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// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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// PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL SANDIA CORPORATION OR THE
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// EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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// PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
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// LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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// NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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// SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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//
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// Questions? Contact Roscoe A. Bartlett (rabartl@sandia.gov)
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//
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// ***********************************************************************
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// @HEADER
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#ifndef RTOPPACK_ROP_WEIGHTED_NORM2_HPP
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#define RTOPPACK_ROP_WEIGHTED_NORM2_HPP
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#include "RTOpPack_RTOpTHelpers.hpp"
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namespace
RTOpPack {
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template
<
class
Scalar>
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class
ROpWeightedNorm2EleWiseReduction
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{
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public
:
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void
operator()(
const
Scalar
&
v0
,
const
Scalar
&
v1
,
Scalar
&
reduct
)
const
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{
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reduct
+=
v0
*
ScalarTraits<Scalar>::conjugate
(
v1
)*
v1
;
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}
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};
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template
<
class
Scalar>
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class
ROpWeightedNorm2
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:
public
ROp_2_ScalarReduction
<Scalar, Scalar,
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ROpWeightedNorm2EleWiseReduction<Scalar> >
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{
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public
:
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typedef
Teuchos::ScalarTraits<Scalar>
ST
;
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ROpWeightedNorm2
()
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{
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this->
setOpNameBase
(
"ROpWeightedNorm2"
);
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}
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typename
ST::magnitudeType
operator()
(
const
ReductTarget
&
reduct_obj
)
const
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{
return
ST::magnitude(ST::squareroot(this->
getRawVal
(reduct_obj))); }
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};
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}
// namespace RTOpPack
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#endif
// RTOPPACK_ROP_WEIGHTED_NORM2_HPP
RTOpPack::ROpScalarReductionWithOpBase< Scalar, ConcreteReductObj, ReductObjReduction >::getRawVal
const ConcreteReductObj & getRawVal(const ReductTarget &reduct_obj) const
RTOpPack::ROpWeightedNorm2EleWiseReduction
Definition
RTOpPack_ROpWeightedNorm2.hpp:55
RTOpPack::ROpWeightedNorm2
Weighted Two (Euclidean) norm reduction operator: result = sqrt( sum( v0[i]*conj(v1[i])*v1[i],...
Definition
RTOpPack_ROpWeightedNorm2.hpp:71
RTOpPack::ROpWeightedNorm2::operator()
ST::magnitudeType operator()(const ReductTarget &reduct_obj) const
Definition
RTOpPack_ROpWeightedNorm2.hpp:81
RTOpPack::ROpWeightedNorm2::ROpWeightedNorm2
ROpWeightedNorm2()
Definition
RTOpPack_ROpWeightedNorm2.hpp:76
RTOpPack::ROpWeightedNorm2::ST
Teuchos::ScalarTraits< Scalar > ST
Definition
RTOpPack_ROpWeightedNorm2.hpp:74
RTOpPack::ROp_2_ScalarReduction
RTOpPack::RTOpT< Scalar >::setOpNameBase
void setOpNameBase(const std::string &op_name_base)
RTOpPack::ReductTarget
RTOpPack::ScalarIndex
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