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opm-simulators/tests/test_partitionCells.cpp
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/*
Copyright 2021,2025 SINTEF Digital, Mathematics and Cybernetics.
Copyright 2025 Equinor ASA
This file is part of the Open Porous Media project (OPM).
OPM 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.
OPM 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 OPM. If not, see <http://www.gnu.org/licenses/>.
*/
#include <config.h>
#define BOOST_TEST_MODULE OPM_test_partitionCells
#define BOOST_TEST_NO_MAIN
#include <boost/test/unit_test.hpp>
#include <dune/grid/common/gridview.hh>
#include <opm/grid/common/WellConnections.hpp>
#include <opm/grid/CpGrid.hpp>
#include <opm/grid/utility/OpmWellType.hpp>
#include <opm/input/eclipse/Schedule/Well/Connection.hpp>
#include <opm/input/eclipse/Schedule/Well/Well.hpp>
#include <opm/input/eclipse/Schedule/Well/WellConnections.hpp>
#include <opm/input/eclipse/Parser/Parser.hpp>
#include <opm/input/eclipse/Deck/Deck.hpp>
#include <opm/input/eclipse/EclipseState/Grid/EclipseGrid.hpp>
#include <opm/simulators/flow/partitionCells.hpp>
// Helper functions
namespace {
Opm::Connection createConnection(int i, int j, int k, int global_index) {
return Opm::Connection(i, j, k, // i,j,k
global_index, // global_index
0, // complnum
Opm::Connection::State::OPEN, // state
Opm::Connection::Direction::Z, // direction
Opm::Connection::CTFKind::DeckValue, // kind
0, // satTableId
0.0, // depth
Opm::Connection::CTFProperties(), // properties
0, // sort_value
false); // defaultSatTabId
}
Dune::cpgrid::OpmWellType createWell(const std::string& name) {
using namespace Opm;
return Dune::cpgrid::OpmWellType(name, name, 0, 0, 0, 0, 0.0, WellType(),
Well::ProducerCMode(), Connection::Order::TRACK,
UnitSystem::newMETRIC(),
0.0, 0.0, false, false, 0, Well::GasInflowEquation());
}
std::vector<Dune::cpgrid::OpmWellType> createWellsWithConnections(
const std::vector<std::pair<std::string, std::vector<int>>>& well_specs) {
std::vector<Dune::cpgrid::OpmWellType> wells;
for (const auto& [well_name, cell_indices] : well_specs) {
auto well_conn = std::make_shared<Opm::WellConnections>();
for (int idx : cell_indices) {
well_conn->add(createConnection(idx, 0, 0, idx));
}
auto well = createWell(well_name);
well.updateConnections(well_conn, true);
wells.push_back(well);
}
return wells;
}
Dune::CpGrid createTestGrid(const std::array<int, 3>& dims,
const std::array<double, 3>& size) {
Dune::CpGrid grid;
grid.createCartesian(dims, size);
return grid;
}
template<typename Entity>
Opm::ZoltanPartitioningControl<Entity> createZoltanControl(const Dune::CpGrid& grid) {
Opm::ZoltanPartitioningControl<Entity> zoltan_ctrl;
zoltan_ctrl.domain_imbalance = 1.1;
zoltan_ctrl.index = [](const auto& element) {
return element.index();
};
zoltan_ctrl.local_to_global = [&grid](const int local_idx) {
return grid.globalCell()[local_idx];
};
return zoltan_ctrl;
}
}
BOOST_AUTO_TEST_CASE(FileBased)
{
auto [part, num_part] = Opm::partitionCellsFromFile("test10.partition", 10);
BOOST_CHECK_EQUAL(num_part, 3);
std::vector<int> expected = { 0, 0, 1, 1, 2, 2, 1, 1, 0, 0 };
BOOST_CHECK_EQUAL_COLLECTIONS(expected.begin(), expected.end(), part.begin(), part.end());
}
BOOST_AUTO_TEST_CASE(FileBasedWrongNumberOfCells)
{
auto func = []() { auto [part, num_part] = Opm::partitionCellsFromFile("test10.partition", 11); };
BOOST_CHECK_THROW(func(), std::runtime_error);
}
BOOST_AUTO_TEST_CASE(Simple1)
{
auto [part, num_part] = Opm::partitionCellsSimple(10, 3);
BOOST_CHECK_EQUAL(num_part, 3);
std::vector<int> expected = { 0, 0, 0, 0, 1, 1, 1, 2, 2, 2 };
BOOST_CHECK_EQUAL_COLLECTIONS(expected.begin(), expected.end(), part.begin(), part.end());
}
BOOST_AUTO_TEST_CASE(Simple2)
{
auto [part, num_part] = Opm::partitionCellsSimple(10, 7);
BOOST_CHECK_EQUAL(num_part, 7);
std::vector<int> expected = { 0, 0, 1, 1, 2, 2, 3, 4, 5, 6 };
BOOST_CHECK_EQUAL_COLLECTIONS(expected.begin(), expected.end(), part.begin(), part.end());
}
BOOST_AUTO_TEST_CASE(PartitionCellsTest)
{
auto grid = createTestGrid({3, 4, 1}, {3.0, 4.0, 1.0});
using Entity = typename Dune::CpGrid::LeafGridView::template Codim<0>::Entity;
auto zoltan_ctrl = createZoltanControl<Entity>(grid);
// Test simple partitioning
{
auto [part, num_part] = Opm::partitionCells("simple", 3, grid.leafGridView(),
std::vector<Opm::Well>{},
std::unordered_map<std::string, std::set<int>>{},
zoltan_ctrl,
0);
BOOST_CHECK_EQUAL(num_part, 3);
BOOST_CHECK_EQUAL(part.size(), 12);
// Check that all partition numbers are valid
for (const auto& p : part) {
BOOST_CHECK(p >= 0 && p < 3);
}
}
#if HAVE_MPI && HAVE_ZOLTAN
// Test Zoltan partitioning
{
auto [part, num_part] = Opm::partitionCells("zoltan", 3, grid.leafGridView(),
std::vector<Opm::Well>{},
std::unordered_map<std::string, std::set<int>>{},
zoltan_ctrl,
0);
BOOST_CHECK_EQUAL(num_part, 3);
BOOST_CHECK_EQUAL(part.size(), 12);
// Check that all partition numbers are valid
for (const auto& p : part) {
BOOST_CHECK(p >= 0 && p < 3);
}
}
#endif
}
BOOST_AUTO_TEST_CASE(PartitionCellsWithWellMergeTest)
{
// Create a 1D grid with 7 cells
// Visual representation of the grid and wells:
// Cell indices: 0 1 2 3 4 5 6
// Well layout: W1---W1 | W2---W2 | |
// Expected: Cell 0 and 1 should be merged
// Cell 3 and 4 should be merged
// Cells 2, 5, and 6 can be in any partition
auto grid = createTestGrid({7, 1, 1}, {7.0, 1.0, 1.0});
// Setup Zoltan control parameters
using Entity = typename Dune::CpGrid::LeafGridView::template Codim<0>::Entity;
auto zoltan_ctrl = createZoltanControl<Entity>(grid);
auto wells = createWellsWithConnections({
{"TESTW1", {0, 1}}, // Well 1 connects cells 0,1
{"TESTW2", {3, 4}} // Well 2 connects cells 3,4
});
// Create well connections object
Dune::cpgrid::WellConnections wellConnections(wells, std::unordered_map<std::string, std::set<int>>{}, grid);
#if HAVE_MPI && HAVE_ZOLTAN
// Test Zoltan partitioning with well cells
auto [part, num_part] = Opm::partitionCells("zoltan", 4, grid.leafGridView(),
wells,
std::unordered_map<std::string, std::set<int>>{},
zoltan_ctrl,
0);
// Verify number of partitions
BOOST_CHECK_EQUAL(num_part, 4);
BOOST_CHECK_EQUAL(part.size(), 7);
// The key tests:
// 1. Cells 0 and 1 (well1) should be in the same partition
BOOST_CHECK_EQUAL(part[0], part[1]);
// 2. Cells 3 and 4 (well2) should be in the same partition
BOOST_CHECK_EQUAL(part[3], part[4]);
// 3. Cells 2, 5, and 6 can be in any partition, but well1 and well2 cells
// don't need to be in the same partition
#endif
}
BOOST_AUTO_TEST_CASE(PartitionCellsWithOverlappingWellsTest)
{
// Create a 1D grid with 7 cells
// Visual representation of the grid and wells:
// Cell indices: 0 1 2 3 4 5 6
// Well layout: W1---W1---W1 | | |
// W2---W2
// Expected: Cells 1,2,3 should be in same partition (Well 1)
// Cells 3,4 should be in same partition (Well 2)
// Therefore cells 1,2,3,4 should all end up in same partition
auto grid = createTestGrid({7, 1, 1}, {7.0, 1.0, 1.0});
using Entity = typename Dune::CpGrid::LeafGridView::template Codim<0>::Entity;
auto zoltan_ctrl = createZoltanControl<Entity>(grid);
auto wells = createWellsWithConnections({
{"TESTW1", {1, 2, 3}}, // Well 1 connects cells 1,2,3
{"TESTW2", {3, 4}} // Well 2 connects cells 3,4
});
#if HAVE_MPI && HAVE_ZOLTAN
// Test Zoltan partitioning with overlapping well cells
auto [part, num_part] = Opm::partitionCells("zoltan", 4, grid.leafGridView(),
wells,
std::unordered_map<std::string, std::set<int>>{},
zoltan_ctrl,
0);
// Verify number of partitions
BOOST_CHECK_EQUAL(num_part, 4);
BOOST_CHECK_EQUAL(part.size(), 7);
// The key tests:
// 1. All cells connected by Well 1 should be in the same partition
BOOST_CHECK_EQUAL(part[1], part[2]);
BOOST_CHECK_EQUAL(part[2], part[3]);
// 2. All cells connected by Well 2 should be in the same partition
BOOST_CHECK_EQUAL(part[3], part[4]);
// 3. Due to the overlap at cell 3, all well-connected cells should be in the same partition
BOOST_CHECK_EQUAL(part[1], part[4]);
// 4. Cells 0, 5, and 6 can be in any partition
#endif
}
BOOST_AUTO_TEST_CASE(PartitionCellsWithOverlappingWells3DTest)
{
// Create a 3x3x3 grid with three wells:
// - Well1: Vertical well through (1,1,0) -> (1,1,1) -> (1,1,2)
// - Well2: Diagonal well through (0,0,0) -> (1,1,1) -> (2,2,2) [overlaps with Well1 at (1,1,1)]
// - Well3: Horizontal well through (0,2,0) -> (1,2,0) -> (2,2,0) [no overlap]
auto grid = createTestGrid({3, 3, 3}, {3.0, 3.0, 3.0});
using Entity = typename Dune::CpGrid::LeafGridView::template Codim<0>::Entity;
auto zoltan_ctrl = createZoltanControl<Entity>(grid);
// Helper to convert i,j,k coordinates to global index for 3x3x3 grid
auto ijkToGlobal = [](int i, int j, int k) { return i + (3 * j) + (9 * k); };
// Create wells with proper 3D connections
auto wells = std::vector<Dune::cpgrid::OpmWellType>();
// Well 1 - vertical well
{
auto well_conn = std::make_shared<Opm::WellConnections>();
well_conn->add(createConnection(1, 1, 0, ijkToGlobal(1, 1, 0))); // Global index: 4
well_conn->add(createConnection(1, 1, 1, ijkToGlobal(1, 1, 1))); // Global index: 13
well_conn->add(createConnection(1, 1, 2, ijkToGlobal(1, 1, 2))); // Global index: 22
auto well = createWell("VERTICAL");
well.updateConnections(well_conn, true);
wells.push_back(well);
}
// Well 2 - diagonal well (overlaps with Well 1 at (1,1,1))
{
auto well_conn = std::make_shared<Opm::WellConnections>();
well_conn->add(createConnection(0, 0, 0, ijkToGlobal(0, 0, 0))); // Global index: 0
well_conn->add(createConnection(1, 1, 1, ijkToGlobal(1, 1, 1))); // Global index: 13
well_conn->add(createConnection(2, 2, 2, ijkToGlobal(2, 2, 2))); // Global index: 26
auto well = createWell("DIAGONAL");
well.updateConnections(well_conn, true);
wells.push_back(well);
}
// Well 3 - horizontal well (no overlap)
{
auto well_conn = std::make_shared<Opm::WellConnections>();
well_conn->add(createConnection(0, 2, 0, ijkToGlobal(0, 2, 0))); // Global index: 6
well_conn->add(createConnection(1, 2, 0, ijkToGlobal(1, 2, 0))); // Global index: 7
well_conn->add(createConnection(2, 2, 0, ijkToGlobal(2, 2, 0))); // Global index: 8
auto well = createWell("HORIZONTAL");
well.updateConnections(well_conn, true);
wells.push_back(well);
}
// Create well connections object
Dune::cpgrid::WellConnections wellConnections(wells, std::unordered_map<std::string, std::set<int>>{}, grid);
#if HAVE_MPI && HAVE_ZOLTAN
// Test Zoltan partitioning with overlapping well cells
auto [part, num_part] = Opm::partitionCells("zoltan", 10, grid.leafGridView(),
wells,
std::unordered_map<std::string, std::set<int>>{},
zoltan_ctrl,
0);
// Verify number of partitions
BOOST_CHECK_EQUAL(num_part, 10);
BOOST_CHECK_EQUAL(part.size(), 27); // 3x3x3 grid
// The key tests:
// 1. All cells in Well 1 (vertical) should be in the same partition
BOOST_CHECK_EQUAL(part[ijkToGlobal(1,1,0)], part[ijkToGlobal(1,1,1)]);
BOOST_CHECK_EQUAL(part[ijkToGlobal(1,1,1)], part[ijkToGlobal(1,1,2)]);
// 2. All cells in Well 2 (diagonal) should be in the same partition
BOOST_CHECK_EQUAL(part[ijkToGlobal(0,0,0)], part[ijkToGlobal(1,1,1)]);
BOOST_CHECK_EQUAL(part[ijkToGlobal(1,1,1)], part[ijkToGlobal(2,2,2)]);
// 3. Due to overlap at (1,1,1), all cells from Well 1 and Well 2 should be in same partition
BOOST_CHECK_EQUAL(part[ijkToGlobal(1,1,0)], part[ijkToGlobal(0,0,0)]);
BOOST_CHECK_EQUAL(part[ijkToGlobal(1,1,2)], part[ijkToGlobal(2,2,2)]);
// 4. All cells in Well 3 (horizontal) should be in the same partition
BOOST_CHECK_EQUAL(part[ijkToGlobal(0,2,0)], part[ijkToGlobal(1,2,0)]);
BOOST_CHECK_EQUAL(part[ijkToGlobal(1,2,0)], part[ijkToGlobal(2,2,0)]);
// 5. Well 3 can be in a different partition from Well 1 and 2 since it doesn't overlap
// No test needed as it can be in any partition
#endif
}
BOOST_AUTO_TEST_CASE(PartitionCellsComplexWellNetworkTest)
{
// Create a 5x5x4 grid to accommodate a complex well network
auto grid = createTestGrid({5, 5, 4}, {5.0, 5.0, 4.0});
using Entity = typename Dune::CpGrid::LeafGridView::template Codim<0>::Entity;
auto zoltan_ctrl = createZoltanControl<Entity>(grid);
// Helper to convert i,j,k coordinates to global index for 5x5x4 grid
auto ijkToGlobal = [](int i, int j, int k) { return i + (5 * j) + (25 * k); };
// Create wells with complex connections
auto wells = std::vector<Dune::cpgrid::OpmWellType>();
// Well 1 - Main vertical producer with two branches
{
auto well_conn = std::make_shared<Opm::WellConnections>();
// Main wellbore - vertical
well_conn->add(createConnection(2, 2, 0, ijkToGlobal(2, 2, 0))); // Bottom
well_conn->add(createConnection(2, 2, 1, ijkToGlobal(2, 2, 1)));
well_conn->add(createConnection(2, 2, 2, ijkToGlobal(2, 2, 2)));
well_conn->add(createConnection(2, 2, 3, ijkToGlobal(2, 2, 3))); // Top
// Branch 1 - horizontal in x direction
well_conn->add(createConnection(3, 2, 2, ijkToGlobal(3, 2, 2)));
well_conn->add(createConnection(4, 2, 2, ijkToGlobal(4, 2, 2)));
// Branch 2 - horizontal in y direction
well_conn->add(createConnection(2, 3, 1, ijkToGlobal(2, 3, 1)));
well_conn->add(createConnection(2, 4, 1, ijkToGlobal(2, 4, 1)));
auto well = createWell("PRODUCER1");
well.updateConnections(well_conn, true);
wells.push_back(well);
}
// Well 2 - Diagonal injector crossing the producer
{
auto well_conn = std::make_shared<Opm::WellConnections>();
well_conn->add(createConnection(0, 0, 0, ijkToGlobal(0, 0, 0)));
well_conn->add(createConnection(1, 1, 1, ijkToGlobal(1, 1, 1)));
well_conn->add(createConnection(2, 2, 2, ijkToGlobal(2, 2, 2))); // Intersects with Well 1
well_conn->add(createConnection(3, 3, 3, ijkToGlobal(3, 3, 3)));
auto well = createWell("INJECTOR1");
well.updateConnections(well_conn, true);
wells.push_back(well);
}
// Well 3 - Horizontal well that crosses both previous wells
{
auto well_conn = std::make_shared<Opm::WellConnections>();
well_conn->add(createConnection(0, 2, 2, ijkToGlobal(0, 2, 2)));
well_conn->add(createConnection(1, 2, 2, ijkToGlobal(1, 2, 2)));
well_conn->add(createConnection(2, 2, 2, ijkToGlobal(2, 2, 2))); // Intersects with Well 1 and 2
well_conn->add(createConnection(3, 2, 2, ijkToGlobal(3, 2, 2))); // Intersects with Well 1's branch
well_conn->add(createConnection(4, 2, 2, ijkToGlobal(4, 2, 2)));
auto well = createWell("PRODUCER2");
well.updateConnections(well_conn, true);
wells.push_back(well);
}
// Well 4 - L-shaped well connecting to the network
{
auto well_conn = std::make_shared<Opm::WellConnections>();
well_conn->add(createConnection(2, 4, 1, ijkToGlobal(2, 4, 1))); // Connects to Well 1's branch
well_conn->add(createConnection(2, 4, 2, ijkToGlobal(2, 4, 2)));
well_conn->add(createConnection(2, 4, 3, ijkToGlobal(2, 4, 3)));
well_conn->add(createConnection(3, 4, 3, ijkToGlobal(3, 4, 3)));
well_conn->add(createConnection(4, 4, 3, ijkToGlobal(4, 4, 3)));
auto well = createWell("PRODUCER3");
well.updateConnections(well_conn, true);
wells.push_back(well);
}
// Well 5 - Isolated well (not connected to the network)
{
auto well_conn = std::make_shared<Opm::WellConnections>();
well_conn->add(createConnection(0, 4, 0, ijkToGlobal(0, 4, 0)));
well_conn->add(createConnection(1, 4, 0, ijkToGlobal(1, 4, 0)));
auto well = createWell("ISOLATED");
well.updateConnections(well_conn, true);
wells.push_back(well);
}
#if HAVE_MPI && HAVE_ZOLTAN
// Test Zoltan partitioning with complex well network
auto [part, num_part] = Opm::partitionCells("zoltan", 15, grid.leafGridView(),
wells,
std::unordered_map<std::string, std::set<int>>{},
zoltan_ctrl,
0);
// Verify number of partitions and grid size
BOOST_CHECK_EQUAL(num_part, 15);
BOOST_CHECK_EQUAL(part.size(), 100); // 5x5x4 grid
// Helper to check if two cells are in the same partition
auto inSamePartition = [&part](int idx1, int idx2) {
return part[idx1] == part[idx2];
};
// Test 1: All cells in Well 1 (main bore and branches) should be in the same partition
// Main wellbore
BOOST_CHECK(inSamePartition(ijkToGlobal(2,2,0), ijkToGlobal(2,2,1)));
BOOST_CHECK(inSamePartition(ijkToGlobal(2,2,1), ijkToGlobal(2,2,2)));
BOOST_CHECK(inSamePartition(ijkToGlobal(2,2,2), ijkToGlobal(2,2,3)));
// Branch 1
BOOST_CHECK(inSamePartition(ijkToGlobal(2,2,2), ijkToGlobal(3,2,2)));
BOOST_CHECK(inSamePartition(ijkToGlobal(3,2,2), ijkToGlobal(4,2,2)));
// Branch 2
BOOST_CHECK(inSamePartition(ijkToGlobal(2,2,1), ijkToGlobal(2,3,1)));
BOOST_CHECK(inSamePartition(ijkToGlobal(2,3,1), ijkToGlobal(2,4,1)));
// Test 2: Well 2 (diagonal) should be in same partition as Well 1 due to intersection
BOOST_CHECK(inSamePartition(ijkToGlobal(0,0,0), ijkToGlobal(2,2,2)));
BOOST_CHECK(inSamePartition(ijkToGlobal(3,3,3), ijkToGlobal(2,2,2)));
// Test 3: Well 3 (horizontal) should be in same partition as Well 1 and 2
BOOST_CHECK(inSamePartition(ijkToGlobal(0,2,2), ijkToGlobal(2,2,2)));
BOOST_CHECK(inSamePartition(ijkToGlobal(4,2,2), ijkToGlobal(2,2,2)));
// Test 4: Well 4 (L-shaped) should be in same partition as Well 1 due to connection
BOOST_CHECK(inSamePartition(ijkToGlobal(2,4,1), ijkToGlobal(2,2,1)));
BOOST_CHECK(inSamePartition(ijkToGlobal(4,4,3), ijkToGlobal(2,2,1)));
// Test 5: Well 5 (isolated) should maintain its own cells in same partition
BOOST_CHECK(inSamePartition(ijkToGlobal(0,4,0), ijkToGlobal(1,4,0)));
// But should be in different partition from the connected network
BOOST_CHECK(part[ijkToGlobal(0,4,0)] != part[ijkToGlobal(2,2,2)]);
// Test 6: Verify the connected network (Wells 1-4) forms a single partition
std::set<int> network_partition_ids;
network_partition_ids.insert(part[ijkToGlobal(2,2,2)]); // Well 1
network_partition_ids.insert(part[ijkToGlobal(1,1,1)]); // Well 2
network_partition_ids.insert(part[ijkToGlobal(2,2,2)]); // Well 3
network_partition_ids.insert(part[ijkToGlobal(2,4,1)]); // Well 4
BOOST_CHECK_EQUAL(network_partition_ids.size(), 1);
#endif
}
BOOST_AUTO_TEST_CASE(PartitionCellsWithNonReachableCellsTest)
{
// Create a 3x3x3 grid where:
// - cell (0,0,0) is isolated (surrounded by inactive cells)
// - cell (0,2,0) is isolated (surrounded by inactive cells)
// - cells needed for wells are active
// Grid structure (top view):
// Layer k=0: Layer k=1: Layer k=2: W = well cells
// [I][X][X ] [X][ ][ ] [X][ ][ ] X = inactive cells
// [X][X][W2] [X][W1][W2] [X][W1][W2] I = isolated active cell
// [I][X][ ] [X][ ][ ] [X][ ][ ] [ ] = active cells
const std::string deckString =
R"(RUNSPEC
DIMENS
3 3 3 /
GRID
COORD
0 0 0 0 0 1
1 0 0 1 0 1
2 0 0 2 0 1
3 0 0 3 0 1
0 1 0 0 1 1
1 1 0 1 1 1
2 1 0 2 1 1
3 1 0 3 1 1
0 2 0 0 2 1
1 2 0 1 2 1
2 2 0 2 2 1
3 2 0 3 2 1
0 3 0 0 3 1
1 3 0 1 3 1
2 3 0 2 3 1
3 3 0 3 3 1
/
ZCORN
36*0
36*1
36*1
36*2
36*2
36*3
/
ACTNUM
-- First layer (3x3)
1 0 0 -- cell (0,0,0) is isolated
0 0 1
1 0 1 -- cell (1,1,1) is isolated
-- Middle layer (3x3)
0 1 1
0 1 1
0 1 1
-- Top layer (3x3)
0 1 1
0 1 1
0 1 1
/
END
)";
// Parse and create grid
Opm::Parser parser;
const auto deck = parser.parseString(deckString);
Opm::EclipseGrid ecl_grid(deck);
Dune::CpGrid grid;
grid.processEclipseFormat(&ecl_grid, nullptr, false, false, false);
// Verify grid properties
const auto& grid_view = grid.leafGridView();
const std::size_t num_active_cells = grid_view.size(0);
BOOST_CHECK_EQUAL(num_active_cells, 16); // 27 total cells - 11 inactive = 16 active
// Helper functions
using Entity = typename Dune::CpGrid::LeafGridView::template Codim<0>::Entity;
auto zoltan_ctrl = createZoltanControl<Entity>(grid);
auto ijkToGlobal = [](int i, int j, int k) { return i + (3 * j) + (9 * k); };
auto wells = std::vector<Dune::cpgrid::OpmWellType>();
// Well 1 - Middle column well
{
auto well_conn = std::make_shared<Opm::WellConnections>();
well_conn->add(createConnection(1, 1, 1, ijkToGlobal(1, 1, 1)));
well_conn->add(createConnection(1, 1, 2, ijkToGlobal(1, 1, 2)));
auto well = createWell("WELL1");
well.updateConnections(well_conn, true);
wells.push_back(well);
}
// Well 2 - Right column well
{
auto well_conn = std::make_shared<Opm::WellConnections>();
well_conn->add(createConnection(2, 1, 0, ijkToGlobal(2, 1, 0)));
well_conn->add(createConnection(2, 1, 1, ijkToGlobal(2, 1, 1)));
well_conn->add(createConnection(2, 1, 2, ijkToGlobal(2, 1, 2)));
auto well = createWell("WELL2");
well.updateConnections(well_conn, true);
wells.push_back(well);
}
#if HAVE_MPI && HAVE_ZOLTAN
auto [part, num_part] = Opm::partitionCells("zoltan", 5, grid.leafGridView(),
wells,
std::unordered_map<std::string, std::set<int>>{},
zoltan_ctrl,
0);
BOOST_CHECK_EQUAL(num_part, 5);
BOOST_CHECK_EQUAL(part.size(), 16);
// For this test global indices != local indices, so we need to
// create a map from global index to local index
std::map<int, int> g2l;
for (const auto& element : elements(grid.leafGridView(), Dune::Partitions::interior)) {
const auto globalIndex = grid.globalCell()[zoltan_ctrl.index(element)];
g2l[globalIndex] = zoltan_ctrl.index(element);
}
// Verify that the two isolated cells are assigned to the -1 partition
BOOST_CHECK_EQUAL(part[g2l[ijkToGlobal(0,0,0)]], -1);
BOOST_CHECK_EQUAL(part[g2l[ijkToGlobal(0,2,0)]], -1);
// Well 1: All cells should be in the same partition
BOOST_CHECK(part[g2l[ijkToGlobal(1,1,1)]] == part[g2l[ijkToGlobal(1,1,2)]]);
// Well 2: All cells should be in the same partition
BOOST_CHECK(part[g2l[ijkToGlobal(2,1,0)]] == part[g2l[ijkToGlobal(2,1,1)]]);
BOOST_CHECK(part[g2l[ijkToGlobal(2,1,1)]] == part[g2l[ijkToGlobal(2,1,2)]]);
// Wells can be in different partitions as they don't connect
BOOST_CHECK(part[g2l[ijkToGlobal(1,1,1)]] != part[g2l[ijkToGlobal(2,1,2)]]);
#endif
}
BOOST_AUTO_TEST_CASE(PartitionCellsWithNeighborConnectivityTest)
{
// Create a 1D grid with 7 cells and two wells that are not directly connected
// but will be connected through their neighboring cells when using neighbor_levels=1
// Visual representation:
// Cell indices: 0 1 2 3 4 5 6
// Well layout: W1 W2
// Connected: * * * * *
// The wells will be connected because cell 2 is a neighbor of W1 and W2
auto grid = createTestGrid({7, 1, 1}, {7.0, 1.0, 1.0});
using Entity = typename Dune::CpGrid::LeafGridView::template Codim<0>::Entity;
auto zoltan_ctrl = createZoltanControl<Entity>(grid);
// Create two wells that are not directly connected
auto wells = createWellsWithConnections({
{"WELL1", {1}}, // Well 1 in cell 1
{"WELL2", {3}} // Well 2 in cell 3 (not adjacent to Well 1)
});
#if HAVE_MPI && HAVE_ZOLTAN
// Test Zoltan partitioning with neighbor connectivity
auto [part, num_part] = Opm::partitionCells("zoltan", 3, grid.leafGridView(),
wells,
std::unordered_map<std::string, std::set<int>>{},
zoltan_ctrl,
1);
// Verify number of partitions
BOOST_CHECK_EQUAL(num_part, 3);
BOOST_CHECK_EQUAL(part.size(), 7); // 7x1x1 grid
// Check that the wells are connected through their neighbors
BOOST_CHECK(part[0] == part[1]);
BOOST_CHECK(part[1] == part[2]);
BOOST_CHECK(part[2] == part[3]);
BOOST_CHECK(part[3] == part[4]);
// Check that the remaining cells are in different partitions
BOOST_CHECK(part[0] != part[5]);
BOOST_CHECK(part[5] != part[6]);
#endif
}
bool
init_unit_test_func()
{
return true;
}
int main(int argc, char** argv)
{
Dune::MPIHelper::instance(argc, argv);
boost::unit_test::unit_test_main(&init_unit_test_func,
argc, argv);
}