/usr/include/trilinos/Thyra_TestingTools.hpp is in libtrilinos-dev 10.4.0.dfsg-1ubuntu2.
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// ***********************************************************************
//
// Thyra: Interfaces and Support for Abstract Numerical Algorithms
// Copyright (2004) Sandia Corporation
//
// Under terms of Contract DE-AC04-94AL85000, there is a non-exclusive
// license for use of this work by or on behalf of the U.S. Government.
//
// This library is free software; you can redistribute it and/or modify
// it under the terms of the GNU Lesser General Public License as
// published by the Free Software Foundation; either version 2.1 of the
// License, or (at your option) any later version.
//
// This library is distributed in the hope that it will be useful, but
// WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
// Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public
// License along with this library; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
// USA
// Questions? Contact Michael A. Heroux (maherou@sandia.gov)
//
// ***********************************************************************
// @HEADER
#ifndef THYRA_TESTING_TOOLS_HPP
#define THYRA_TESTING_TOOLS_HPP
#include "Thyra_TestingToolsDecl.hpp"
#include "Thyra_VectorBase.hpp"
#include "Thyra_VectorStdOps.hpp"
#include "Thyra_LinearOpBase.hpp"
#include "Thyra_AssertOp.hpp"
#include "Teuchos_as.hpp"
template <class Scalar>
typename Teuchos::ScalarTraits<Scalar>::magnitudeType
Thyra::relVectorErr( const VectorBase<Scalar> &v1, const VectorBase<Scalar> &v2 )
{
typedef Teuchos::ScalarTraits<Scalar> ST;
typedef typename ST::magnitudeType ScalarMag;
#ifdef TEUCHOS_DEBUG
THYRA_ASSERT_VEC_SPACES( "relErr(v1,v2)", *v1.space(), *v2.space() );
#endif
RCP<VectorBase<Scalar> >
diff = createMember(v1.space());
V_VmV( diff.ptr(), v1, v2 );
const ScalarMag
nrm_v1 = norm(v1),
nrm_v2 = norm(v2),
nrm_diff = norm(*diff);
return
( nrm_diff
/ (
ST::magnitude(
Teuchos::RelErrSmallNumber<ST::hasMachineParameters,Scalar>::smallNumber()
)
+ std::max( nrm_v1, nrm_v2 )
)
);
}
template<class Scalar1, class Scalar2, class ScalarMag>
bool Thyra::testRelErrors(
const int num_scalars
,const std::string &v1_name
,const Scalar1 v1[]
,const std::string &v2_name
,const Scalar2 v2[]
,const std::string &maxRelErr_error_name
,const ScalarMag &maxRelErr_error
,const std::string &maxRelErr_warning_name
,const ScalarMag &maxRelErr_warning
,std::ostream *out
,const std::string &li
)
{
using std::setw;
typedef Teuchos::ScalarTraits<ScalarMag> SMT;
typedef typename Teuchos::PromotionTraits<Scalar1,Scalar2>::promote Scalar;
if(num_scalars==1) {
return testRelErr<Scalar>(
v1_name,v1[0],v2_name,v2[0]
,maxRelErr_error_name,maxRelErr_error
,maxRelErr_warning_name,maxRelErr_warning
,out,li
);
}
bool success = true;
if(out) *out
<< std::endl
<< li << "Check: rel_err(" << v1_name << "," << v2_name << ") <= " << maxRelErr_error_name << " ?\n";
for( int i = 0; i < num_scalars; ++i ) {
const ScalarMag rel_err = relErr<Scalar>( v1[i], v2[i] );
const bool result = ( !SMT::isnaninf(rel_err) && !SMT::isnaninf(maxRelErr_error) && rel_err <= maxRelErr_error );
if(!result) success = false;
if(out) {
*out
<< li << " "<<setw(2)<<i<<": rel_err("<<v1[i]<<","<<v2[i]<<") "<<"= "<<rel_err
<< " <= " << maxRelErr_error << " : " << passfail(result) << std::endl;
if( result && rel_err >= maxRelErr_warning ) {
*out
<< li << " Warning! rel_err(...) >= " << maxRelErr_warning_name << " = " << maxRelErr_warning << "!\n";
}
}
}
return success;
}
template<class Scalar>
bool Thyra::testRelNormDiffErr(
const std::string &v1_name,
const VectorBase<Scalar> &v1,
const std::string &v2_name,
const VectorBase<Scalar> &v2,
const std::string &maxRelErr_error_name,
const typename Teuchos::ScalarTraits<Scalar>::magnitudeType &maxRelErr_error,
const std::string &maxRelErr_warning_name,
const typename Teuchos::ScalarTraits<Scalar>::magnitudeType &maxRelErr_warning,
std::ostream *out_inout,
const Teuchos::EVerbosityLevel verbLevel,
const std::string &li
)
{
using std::endl;
using Teuchos::as;
using Teuchos::OSTab;
typedef Teuchos::ScalarTraits<Scalar> ST;
typedef typename ST::magnitudeType ScalarMag;
typedef Teuchos::ScalarTraits<ScalarMag> SMT;
const RCP<FancyOStream> out =
Teuchos::fancyOStream(Teuchos::rcp(out_inout, false));
const ScalarMag
nrm_v1 = norm(v1),
nrm_v2 = norm(v2);
const ScalarMag rel_err = relVectorErr(v1,v2);
const bool success =
(
!SMT::isnaninf(rel_err)
&& !SMT::isnaninf(maxRelErr_error)
&& rel_err <= maxRelErr_error
);
if (nonnull(out)) {
*out
<< endl
<< li << "Testing relative error between vectors "
<< v1_name << " and " << v2_name << ":\n";
OSTab tab(out);
*out
<< li << "||"<<v1_name<<"|| = " << nrm_v1 << endl
<< li << "||"<<v2_name<<"|| = " << nrm_v2 << endl;
if (as<int>(verbLevel) >= as<int>(Teuchos::VERB_HIGH)) {
*out
<< li << v1_name << " = " << describe(v1,verbLevel)
<< li << v2_name << " = " << describe(v2,verbLevel);
RCP<VectorBase<Scalar> > diff = createMember(v1.space());
V_VmV( diff.ptr(), v1, v2 );
*out
<< li << v1_name << " - " << v2_name << " = " << describe(*diff,verbLevel);
}
*out
<< li << "Check: rel_err(" << v1_name << "," << v2_name << ") = "
<< rel_err << " <= " << maxRelErr_error_name << " = "
<< maxRelErr_error << " : " << passfail(success) << endl;
if( success && rel_err >= maxRelErr_warning ) {
*out
<< li << "Warning! rel_err(" << v1_name << "," << v2_name << " >= "
<< maxRelErr_warning_name << " = " << maxRelErr_warning << "!\n";
}
}
return success;
}
template<class Scalar>
bool Thyra::testMaxErr(
const std::string &error_name
,const Scalar &error
,const std::string &max_error_name
,const typename Teuchos::ScalarTraits<Scalar>::magnitudeType &max_error
,const std::string &max_warning_name
,const typename Teuchos::ScalarTraits<Scalar>::magnitudeType &max_warning
,std::ostream *out
,const std::string &li
)
{
typedef Teuchos::ScalarTraits<Scalar> ST;
typedef typename ST::magnitudeType ScalarMag;
typedef Teuchos::ScalarTraits<ScalarMag> SMT;
const ScalarMag error_mag = ST::magnitude(error);
const bool success = (
!SMT::isnaninf(error_mag)
&& !SMT::isnaninf(max_error)
&& error_mag <= max_error );
if(out) {
*out
<< std::endl
<< li << "Check: |" << error_name << "| = " << error_mag
<< " <= " << max_error_name << " = " << max_error << " : "
<< passfail(success) << std::endl;
if( success && error_mag >= max_warning ) {
*out
<< li << "Warning! " << error_name << " = " << error_mag
<< " >= " << max_warning_name << " = " << max_warning << "!\n";
}
}
return success;
}
template<class Scalar>
bool Thyra::testMaxErrors(
const int num_scalars
,const std::string &error_name
,const Scalar error[]
,const std::string &max_error_name
,const typename Teuchos::ScalarTraits<Scalar>::magnitudeType &max_error
,const std::string &max_warning_name
,const typename Teuchos::ScalarTraits<Scalar>::magnitudeType &max_warning
,std::ostream *out
,const std::string &li
)
{
using std::setw;
typedef Teuchos::ScalarTraits<Scalar> ST;
typedef typename ST::magnitudeType ScalarMag;
typedef Teuchos::ScalarTraits<ScalarMag> SMT;
if(num_scalars==1) {
return testMaxErr(
error_name,error[0]
,max_error_name,max_error
,max_warning_name,max_warning
,out,li
);
}
bool success = true;
if(out) *out
<< std::endl
<< li << "Check: |"<<error_name<<"| <= "<<max_error_name<<" ?\n";
for( int i = 0; i < num_scalars; ++i ) {
const ScalarMag error_mag = ST::magnitude(error[i]);
const bool result = (
!SMT::isnaninf(error_mag)
&& !SMT::isnaninf(max_error)
&& error_mag <= max_error );
if(!result) success = false;
if(out) {
*out
<< li << " "<<setw(2)<<i<<": |"<<error[i]<<"| = "<<error_mag<<" <= "
<<max_error<<" : "<<passfail(success)<<"\n";
if( result && error_mag >= max_warning ) {
*out
<< li << " Warning! |...| >= "<<max_warning_name<<" = "<<max_warning<<"!\n";
}
}
}
return success;
}
template<class Scalar>
std::ostream& Thyra::operator<<( std::ostream& o, const VectorBase<Scalar>& v )
{
return o << Teuchos::describe(v, Teuchos::VERB_EXTREME);
}
template<class Scalar>
std::ostream& Thyra::operator<<( std::ostream& o, const LinearOpBase<Scalar>& M )
{
return o << Teuchos::describe(M, Teuchos::VERB_EXTREME);
}
#endif // THYRA_TESTING_TOOLS_HPP
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