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/*
* This file is a part of TiledArray.
* Copyright (C) 2013 Virginia Tech
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
*/
#include "TiledArray/pmap/blocked_pmap.h"
#include "tiledarray.h"
#include "unit_test_config.h"
#include "global_fixture.h"
using namespace TiledArray;
struct BlockedPmapFixture {
BlockedPmapFixture() { }
};
// =============================================================================
// BlockdPmap Test Suite
BOOST_FIXTURE_TEST_SUITE( blocked_pmap_suite, BlockedPmapFixture )
BOOST_AUTO_TEST_CASE( constructor )
{
for(std::size_t tiles = 1ul; tiles < 100ul; ++tiles) {
BOOST_REQUIRE_NO_THROW(TiledArray::detail::BlockedPmap pmap(* GlobalFixture::world, tiles));
TiledArray::detail::BlockedPmap pmap(* GlobalFixture::world, tiles);
BOOST_CHECK_EQUAL(pmap.rank(), GlobalFixture::world->rank());
BOOST_CHECK_EQUAL(pmap.procs(), GlobalFixture::world->size());
BOOST_CHECK_EQUAL(pmap.size(), tiles);
}
#ifdef TA_EXCEPTION_ERROR
BOOST_CHECK_THROW(TiledArray::detail::BlockedPmap pmap(* GlobalFixture::world, 0ul), TiledArray::Exception);
#endif // TA_EXCEPTION_ERROR
}
BOOST_AUTO_TEST_CASE( owner )
{
const std::size_t rank = GlobalFixture::world->rank();
const std::size_t size = GlobalFixture::world->size();
ProcessID* p_owner = new ProcessID[size];
// Check various pmap sizes
for(std::size_t tiles = 1ul; tiles < 100ul; ++tiles) {
TiledArray::detail::BlockedPmap pmap(* GlobalFixture::world, tiles);
for(std::size_t tile = 0; tile < tiles; ++tile) {
std::fill_n(p_owner, size, 0);
p_owner[rank] = pmap.owner(tile);
// check that the value is in range
BOOST_CHECK_LT(p_owner[rank], size);
GlobalFixture::world->gop.sum(p_owner, size);
// Make sure everyone agrees on who owns what.
for(std::size_t p = 0ul; p < size; ++p)
BOOST_CHECK_EQUAL(p_owner[p], p_owner[rank]);
}
}
delete [] p_owner;
}
BOOST_AUTO_TEST_CASE( local_size )
{
for(std::size_t tiles = 1ul; tiles < 100ul; ++tiles) {
TiledArray::detail::BlockedPmap pmap(* GlobalFixture::world, tiles);
std::size_t total_size = pmap.local_size();
GlobalFixture::world->gop.sum(total_size);
// Check that the total number of elements in all local groups is equal to
// the number of tiles in the map.
BOOST_CHECK_EQUAL(total_size, tiles);
BOOST_CHECK(pmap.empty() == (pmap.local_size() == 0ul));
}
}
BOOST_AUTO_TEST_CASE( local_group )
{
ProcessID tile_owners[100];
for(std::size_t tiles = 1ul; tiles < 100ul; ++tiles) {
TiledArray::detail::BlockedPmap pmap(* GlobalFixture::world, tiles);
// Check that all local elements map to this rank
for(detail::BlockedPmap::const_iterator it = pmap.begin(); it != pmap.end(); ++it) {
BOOST_CHECK_EQUAL(pmap.owner(*it), GlobalFixture::world->rank());
}
std::fill_n(tile_owners, tiles, 0);
for(detail::BlockedPmap::const_iterator it = pmap.begin(); it != pmap.end(); ++it) {
tile_owners[*it] += GlobalFixture::world->rank();
}
GlobalFixture::world->gop.sum(tile_owners, tiles);
for(std::size_t tile = 0; tile < tiles; ++tile) {
BOOST_CHECK_EQUAL(tile_owners[tile], pmap.owner(tile));
}
}
}
BOOST_AUTO_TEST_SUITE_END()
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