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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_UnitTestCreateOverlapGraph.cpp
\brief Ifpack2 Unit test.
This file unit-tests the createOverlapGraph function.
*/
#include <Teuchos_ConfigDefs.hpp>
#include <Ifpack2_ConfigDefs.hpp>
#include <Teuchos_UnitTestHarness.hpp>
#include <iostream>
#include <Ifpack2_UnitTestHelpers.hpp>
#include <Ifpack2_CreateOverlapGraph.hpp>
namespace {
using Tpetra::global_size_t;
typedef tif_utest::Node Node;
//this macro declares the unit-test-class:
TEUCHOS_UNIT_TEST_TEMPLATE_2_DECL(Ifpack2CreateOverlapGraph, OverlapGraphTest0, 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
global_size_t num_rows_per_proc = 5;
//Create a Tpetra::CrsGraph:
Teuchos::RCP<const Tpetra::CrsGraph<LocalOrdinal,GlobalOrdinal,Node> > crsgraph = tif_utest::create_tridiag_graph<LocalOrdinal,GlobalOrdinal,Node>(num_rows_per_proc);
TEST_EQUALITY( crsgraph->getMap()->getNodeNumElements(), num_rows_per_proc)
LocalOrdinal overlap_levels = 2;
Teuchos::RCP<const Tpetra::CrsGraph<LocalOrdinal,GlobalOrdinal,Node> > overlapgraph =
Ifpack2::createOverlapGraph<Tpetra::CrsGraph<LocalOrdinal,GlobalOrdinal,Node> >(crsgraph, overlap_levels);
const int numProcs = overlapgraph->getMap()->getComm()->getSize();
const int myProc = overlapgraph->getMap()->getComm()->getRank();
//Now test how many local rows there are in the overlapped-graph.
//For a tri-diagonal input-graph with 5 local rows on each proc:
//'end' procs (procs 0 and numProcs-1) should have an extra row in the
//overlapped graph for each level of overlap. Other procs should
//have an extra 2 rows for each level of overlap.
//Special case: if numProcs==1 then overlapgraph should have the same
//number of rows as the input-graph.
if (numProcs == 1) {
TEST_EQUALITY(overlapgraph->getMap()->getNodeNumElements(), num_rows_per_proc)
}
else {
if (myProc == 0 || myProc == numProcs-1) {
TEST_EQUALITY(overlapgraph->getMap()->getNodeNumElements(), num_rows_per_proc+overlap_levels)
}
else {
TEST_EQUALITY(overlapgraph->getMap()->getNodeNumElements(), num_rows_per_proc+overlap_levels*2)
}
}
}
#define UNIT_TEST_GROUP_LO_GO(LocalOrdinal,GlobalOrdinal) \
TEUCHOS_UNIT_TEST_TEMPLATE_2_INSTANT( Ifpack2CreateOverlapGraph, OverlapGraphTest0, LocalOrdinal,GlobalOrdinal)
#include "Ifpack2_ETIHelperMacros.h"
IFPACK2_ETI_MANGLING_TYPEDEFS()
// Test all enabled combinations of LocalOrdinal (LO)
// and GlobalOrdinal (GO) types.
IFPACK2_INSTANTIATE_LG( UNIT_TEST_GROUP_LO_GO )
} // namespace (anonymous)
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