Files
lammps/lib/kokkos/core/unit_test/TestCrs.hpp
2019-02-01 12:45:54 -07:00

224 lines
7.3 KiB
C++

/*
//@HEADER
// ************************************************************************
//
// Kokkos v. 2.0
// Copyright (2014) Sandia Corporation
//
// Under the terms of Contract DE-AC04-94AL85000 with Sandia Corporation,
// the U.S. Government retains certain rights in this software.
//
// 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 Christian R. Trott (crtrott@sandia.gov)
//
// ************************************************************************
//@HEADER
*/
#include <vector>
#include <Kokkos_Core.hpp>
namespace Test {
namespace {
template< class ExecSpace >
struct CountFillFunctor {
KOKKOS_INLINE_FUNCTION
std::int32_t operator()(std::int32_t row, std::int32_t* fill) const {
auto n = (row % 4) + 1;
if (fill) {
for (std::int32_t j = 0; j < n; ++j) {
fill[j] = j + 1;
}
}
return n;
}
};
/* RunUpdateCrsTest
* 4 test cases:
* 1. use member object version which is constructed directly using the copy constructor
* 2. excplicity copy construct in local variable
* 3. construct default and assign to input object
* 4. construct object from views
*/
template< class CrsType, class ExecSpace, class scalarType >
struct RunUpdateCrsTest {
struct TestOne {};
struct TestTwo {};
struct TestThree {};
struct TestFour {};
CrsType graph;
RunUpdateCrsTest( CrsType g_in ) : graph(g_in)
{
}
void run_test(int nTest) {
switch (nTest)
{
case 1:
parallel_for ("TestCrs1", Kokkos::RangePolicy<ExecSpace, TestOne>(0,graph.numRows()),*this);
break;
case 2:
parallel_for ("TestCrs2", Kokkos::RangePolicy<ExecSpace, TestTwo>(0,graph.numRows()),*this);
break;
case 3:
parallel_for ("TestCrs3", Kokkos::RangePolicy<ExecSpace, TestThree>(0,graph.numRows()),*this);
break;
case 4:
parallel_for ("TestCrs4", Kokkos::RangePolicy<ExecSpace, TestFour>(0,graph.numRows()),*this);
break;
default:
break;
}
}
KOKKOS_INLINE_FUNCTION
void updateGraph(const CrsType & g_in, const scalarType row) const {
auto row_map = g_in.row_map;
auto entries = g_in.entries;
auto j_start = row_map(row);
auto j_end = row_map(row+1)-j_start;
for (scalarType j = 0; j < j_end; ++j) {
entries(j_start+j) = (j+1)*(j+1);
}
}
// Test Crs class from class member
KOKKOS_INLINE_FUNCTION
void operator()(const TestOne &, const scalarType row) const {
updateGraph(graph, row);
}
// Test Crs class from copy constructor (local_graph(graph)
KOKKOS_INLINE_FUNCTION
void operator()(const TestTwo &, const scalarType row) const {
CrsType local_graph(graph);
updateGraph(local_graph, row);
}
// Test Crs class from default constructor assigned to function parameter
KOKKOS_INLINE_FUNCTION
void operator()(const TestThree &, const scalarType row) const {
CrsType local_graph;
local_graph = graph;
updateGraph(local_graph, row);
}
// Test Crs class from local graph constructed from row_map and entities access on input parameter)
KOKKOS_INLINE_FUNCTION
void operator()(const TestFour &, const scalarType row) const {
CrsType local_graph(graph.row_map, graph.entries);
updateGraph(local_graph, row);
}
};
template< class ExecSpace >
void test_count_fill(std::int32_t nrows) {
Kokkos::Crs<std::int32_t, ExecSpace, void, std::int32_t> graph;
Kokkos::count_and_fill_crs(graph, nrows, CountFillFunctor<ExecSpace>());
ASSERT_EQ(graph.numRows(), nrows);
auto row_map = Kokkos::create_mirror_view(graph.row_map);
Kokkos::deep_copy(row_map, graph.row_map);
auto entries = Kokkos::create_mirror_view(graph.entries);
Kokkos::deep_copy(entries, graph.entries);
for (std::int32_t row = 0; row < nrows; ++row) {
auto n = (row % 4) + 1;
ASSERT_EQ(row_map(row + 1) - row_map(row), n);
for (std::int32_t j = 0; j < n; ++j) {
ASSERT_EQ(entries(row_map(row) + j), j + 1);
}
}
}
// Test Crs Constructor / assignment operation by
// using count and fill to create/populate initial graph,
// then use parallel_for with Crs directly to update content
// then verify results
template< class ExecSpace >
void test_constructor(std::int32_t nrows) {
for (int nTest = 1; nTest < 5; nTest++)
{
typedef Kokkos::Crs<std::int32_t, ExecSpace, void, std::int32_t> crs_int32;
crs_int32 graph;
Kokkos::count_and_fill_crs(graph, nrows, CountFillFunctor<ExecSpace>());
ASSERT_EQ(graph.numRows(), nrows);
RunUpdateCrsTest<crs_int32, ExecSpace, std::int32_t> crstest(graph);
crstest.run_test(nTest);
auto row_map = Kokkos::create_mirror_view(graph.row_map);
Kokkos::deep_copy(row_map, graph.row_map);
auto entries = Kokkos::create_mirror_view(graph.entries);
Kokkos::deep_copy(entries, graph.entries);
for (std::int32_t row = 0; row < nrows; ++row) {
auto n = (row % 4) + 1;
ASSERT_EQ(row_map(row + 1) - row_map(row), n);
for (std::int32_t j = 0; j < n; ++j) {
ASSERT_EQ(entries(row_map(row) + j), (j + 1)*(j+1));
}
}
}
}
} // anonymous namespace
TEST_F( TEST_CATEGORY, crs_count_fill )
{
test_count_fill<TEST_EXECSPACE>(0);
test_count_fill<TEST_EXECSPACE>(1);
test_count_fill<TEST_EXECSPACE>(2);
test_count_fill<TEST_EXECSPACE>(3);
test_count_fill<TEST_EXECSPACE>(13);
test_count_fill<TEST_EXECSPACE>(100);
test_count_fill<TEST_EXECSPACE>(1000);
test_count_fill<TEST_EXECSPACE>(10000);
}
TEST_F( TEST_CATEGORY, crs_copy_constructor )
{
test_constructor<TEST_EXECSPACE>(0);
test_constructor<TEST_EXECSPACE>(1);
test_constructor<TEST_EXECSPACE>(2);
test_constructor<TEST_EXECSPACE>(3);
test_constructor<TEST_EXECSPACE>(13);
test_constructor<TEST_EXECSPACE>(100);
test_constructor<TEST_EXECSPACE>(1000);
test_constructor<TEST_EXECSPACE>(10000);
}
} // namespace Test