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/*
//@HEADER
// ***********************************************************************
//
// Ifpack2: Templated Object-Oriented Algebraic Preconditioner Package
// Copyright (2009) 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.
//
// 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. Neither the name of the Corporation nor the names of the
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY SANDIA CORPORATION "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 SANDIA CORPORATION OR THE
// CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
// EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
// PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
// LIABILITY, WHETHER IN 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.
//
// Questions? Contact Michael A. Heroux (maherou@sandia.gov)
//
// ***********************************************************************
//@HEADER
*/
/// \file Ifpack2_UnitTestAmesos2solver.cpp
/// \brief Ifpack2 unit test for the Amesos2 wrapper.
///
/// This test only builds nontrivially and executes if Amesos2 is enabled.
#include <Teuchos_ConfigDefs.hpp>
#include <Ifpack2_ConfigDefs.hpp>
#include <Teuchos_UnitTestHarness.hpp>
//#if defined(HAVE_IFPACK2_AMESOS2) && defined(HAVE_AMESOS2_SUPERLU)
#if defined(HAVE_IFPACK2_AMESOS2)
#include <Amesos2_config.h>
#include <Ifpack2_Details_Amesos2Wrapper.hpp>
#include <iostream>
#include <Ifpack2_UnitTestHelpers.hpp>
namespace {
using Teuchos::RCP;
using std::endl;
typedef Tpetra::global_size_t GST;
typedef tif_utest::Node Node;
//this macro declares the unit-test-class:
TEUCHOS_UNIT_TEST_TEMPLATE_3_DECL(Ifpack2Amesos2Wrapper, Test0, Scalar, LO, GO)
{
//we are now in a class method declared by the above macro, and
//that method has these input arguments:
//Teuchos::FancyOStream& out, bool& success
using Kokkos::Details::ArithTraits;
typedef Tpetra::Map<LO,GO,Node> map_type;
typedef Tpetra::CrsMatrix<Scalar,LO,GO,Node> crs_matrix_type;
typedef Tpetra::RowMatrix<Scalar,LO,GO,Node> row_matrix_type;
#ifdef HAVE_AMESOS2_SUPERLU
typedef Tpetra::MultiVector<Scalar,LO,GO,Node> mv_type;
typedef typename mv_type::impl_scalar_type val_type;
typedef typename Kokkos::Details::ArithTraits<val_type>::mag_type mag_type;
typedef typename map_type::device_type device_type;
//const mag_type oneMag = ArithTraits<mag_type>::one ();
#endif
out << "Ifpack2 Amesos2 wrapper: Test0" << endl;
Teuchos::OSTab tab1 (out);
GST num_rows_per_proc = 5;
RCP<const map_type> rowmap =
tif_utest::create_tpetra_map<LO,GO,Node> (num_rows_per_proc);
RCP<const crs_matrix_type> crsmatrix = tif_utest::create_test_matrix<Scalar,LO,GO,Node> (rowmap);
out << "Create Ifpack2 Amesos2 wrapper instance" << endl;
Ifpack2::Details::Amesos2Wrapper<row_matrix_type> prec (crsmatrix);
out << "Set solver parameters" << endl;
Teuchos::ParameterList params;
params.set("Amesos2 solver name","superlu");
Teuchos::ParameterList &sublist = params.sublist("Amesos2");
(sublist.sublist("SuperLU")).set("ILU_Flag",false); //create SuperLU sublist to get rid of unused variable warnings
TEST_NOTHROW(prec.setParameters(params));
//trivial tests to insist that the preconditioner's domain/range maps are
//identically those of the matrix:
const map_type* mtx_dom_map_ptr = &*crsmatrix->getDomainMap();
const map_type* mtx_rng_map_ptr = &*crsmatrix->getRangeMap();
const map_type* prec_dom_map_ptr = &*prec.getDomainMap();
const map_type* prec_rng_map_ptr = &*prec.getRangeMap();
TEST_EQUALITY( prec_dom_map_ptr, mtx_dom_map_ptr );
TEST_EQUALITY( prec_rng_map_ptr, mtx_rng_map_ptr );
# if !defined(HAVE_AMESOS2_SUPERLU)
out << "NOT TESTING SUPERLU!!! SUPERLU is NOT enabled!" << endl;
TEST_THROW(prec.initialize(),std::invalid_argument);
# else
out << "SuperLU IS enabled." << endl;
out << "Test prec.initialize()" << endl;
TEST_NOTHROW(prec.initialize());
out << "Test prec.compute()" << endl;
prec.compute();
mv_type x (rowmap, 2);
mv_type y (rowmap, 2);
x.putScalar (Teuchos::ScalarTraits<Scalar>::one ());
out << "Test prec.apply(x,y)" << endl;
prec.apply (x, y);
out << "y should be full of 0.5's now" << endl;
const Scalar one = Teuchos::ScalarTraits<Scalar>::one ();
const Scalar two = one + one;
const Scalar oneHalf = one / two;
mv_type diff (y.getMap (), y.getNumVectors ());
diff.putScalar (oneHalf);
diff.update (one, y, -one);
Kokkos::View<mag_type*, device_type> norms ("norms", diff.getNumVectors ());
diff.normInf (norms);
auto norms_h = Kokkos::create_mirror_view (norms);
Kokkos::deep_copy (norms_h, norms);
{
typedef Teuchos::ScalarTraits<Scalar> STS;
const mag_type bound = ArithTraits<mag_type>::zero ();
diff.putScalar (STS::one ());
diff.update (STS::one (), x, -STS::one ());
diff.normInf (norms);
Kokkos::deep_copy (norms_h, norms);
for (LO j = 0; j < static_cast<LO> (norms_h.extent (0)); ++j) {
const mag_type absVal = ArithTraits<mag_type>::abs (norms_h(j));
TEST_ASSERT( absVal <= bound );
if (absVal > bound) {
out << "\\| x(:," << j << ") - 1 \\|_{\\infty} = "
<< absVal << " > " << bound
<< "; the norm equals " << norms_h(j)
<< endl;
}
}
}
# endif
}
TEUCHOS_UNIT_TEST_TEMPLATE_3_DECL(Ifpack2Amesos2Wrapper, Test1, Scalar, LocalOrdinal, GlobalOrdinal)
{
//we are now in a class method declared by the above macro, and
//that method has these input arguments:
//Teuchos::FancyOStream& out, bool& success
using Teuchos::RCP;
typedef Tpetra::Map<LocalOrdinal,GlobalOrdinal,Node> map_type;
typedef Tpetra::CrsMatrix<Scalar,LocalOrdinal,GlobalOrdinal,Node> crs_matrix_type;
typedef Tpetra::RowMatrix<Scalar,LocalOrdinal,GlobalOrdinal,Node> row_matrix_type;
out << "Ifpack2 Amesos2 wrapper: Test1" << endl;
Teuchos::OSTab tab1 (out);
GST num_rows_per_proc = 5;
RCP<const map_type> rowmap = tif_utest::create_tpetra_map<LocalOrdinal,GlobalOrdinal,Node> (num_rows_per_proc);
RCP<const crs_matrix_type> crsmatrix = tif_utest::create_test_matrix3<Scalar,LocalOrdinal,GlobalOrdinal,Node>(rowmap);
Ifpack2::Details::Amesos2Wrapper<row_matrix_type> prec (crsmatrix);
Teuchos::ParameterList params;
params.set("Amesos2 solver name","superlu");
Teuchos::ParameterList &sublist = params.sublist("Amesos2");
(sublist.sublist("SuperLU")).set("ILU_Flag",false); //create SuperLU sublist to get rid of unused variable warnings
TEST_NOTHROW(prec.setParameters(params));
# if !defined(HAVE_AMESOS2_SUPERLU)
TEST_THROW(prec.initialize(),std::invalid_argument);
# else
TEST_NOTHROW(prec.initialize());
prec.compute();
typedef Tpetra::MultiVector<Scalar,LocalOrdinal,GlobalOrdinal,Node> mv_type;
mv_type x(rowmap,2), y(rowmap,2);
x.putScalar (Teuchos::ScalarTraits<Scalar>::one ());
crsmatrix->apply (x, y);
prec.apply (y, x);
Teuchos::ArrayRCP<const Scalar> xview = x.get1dView();
//x should be full of 1's now.
Teuchos::ArrayRCP<Scalar> ones(num_rows_per_proc*2, Teuchos::ScalarTraits<Scalar>::one ());
TEST_COMPARE_FLOATING_ARRAYS(xview, ones(), 2*Teuchos::ScalarTraits<Scalar>::eps());
# endif
}
#define UNIT_TEST_GROUP_SCALAR_ORDINAL(Scalar,LocalOrdinal,GlobalOrdinal) \
TEUCHOS_UNIT_TEST_TEMPLATE_3_INSTANT( Ifpack2Amesos2Wrapper, Test0, Scalar, LocalOrdinal, GlobalOrdinal) \
TEUCHOS_UNIT_TEST_TEMPLATE_3_INSTANT( Ifpack2Amesos2Wrapper, Test1, Scalar, LocalOrdinal, GlobalOrdinal)
// FIXME (mfh 11 Apr 2018) We should test this at least for all
// enabled real Scalar types, if not complex Scalar types as well.
typedef Tpetra::MultiVector<>::scalar_type default_scalar_type;
typedef Tpetra::MultiVector<>::local_ordinal_type default_local_ordinal_type;
typedef Tpetra::MultiVector<>::global_ordinal_type default_global_ordinal_type;
UNIT_TEST_GROUP_SCALAR_ORDINAL( default_scalar_type, default_local_ordinal_type, default_global_ordinal_type )
} // namespace (anonymous)
#endif // HAVE_IFPACK2_AMESOS2
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