//EpetraMap_To_TpetraMap: takes in Epetra_Map object, converts it to its equivalent Tpetra::Map object,
//and returns an RCP pointer to this Tpetra::Map
Teuchos::RCP<const Tpetra_Map> Petra::EpetraMap_To_TpetraMap(const Teuchos::RCP<const Epetra_Map>& epetraMap_,
const Teuchos::RCP<const Teuchos::Comm<int> >& commT_)
{
const std::size_t numElements = Teuchos::as<std::size_t>(epetraMap_->NumMyElements());
const auto indexBase = Teuchos::as<GO>(epetraMap_->IndexBase());
if (epetraMap_->DistributedGlobal() || epetraMap_->Comm().NumProc() == Teuchos::OrdinalTraits<int>::one()) {
Teuchos::Array<Tpetra_GO> indices(numElements);
int *epetra_indices = epetraMap_->MyGlobalElements();
for(LO i=0; i < numElements; i++)
indices[i] = epetra_indices[i];
const Tpetra::global_size_t computeGlobalElements = Teuchos::OrdinalTraits<Tpetra::global_size_t>::invalid();
return Teuchos::rcp(new Tpetra_Map(computeGlobalElements, indices, indexBase, commT_));
} else {
return Teuchos::rcp(new Tpetra_Map(numElements, indexBase, commT_, Tpetra::LocallyReplicated));
}
}
TEUCHOS_UNIT_TEST(PdQuickGridDiscretization_MPI_np2, SimpleTensorProductMeshTest) {
Teuchos::RCP<Epetra_Comm> comm;
comm = rcp(new Epetra_MpiComm(MPI_COMM_WORLD));
int numProcs = comm->NumProc();
int rank = comm->MyPID();
TEST_COMPARE(numProcs, ==, 2);
if(numProcs != 2){
std::cerr << "Unit test runtime ERROR: utPeridigm_PdQuickGridDiscretization_MPI_np2 only makes sense on 2 processors" << std::endl;
return;
}
RCP<ParameterList> discParams = rcp(new ParameterList);
// create a 2x2x2 discretization
// specify a spherical neighbor search with the horizon a tad longer than the mesh spacing
discParams->set("Type", "PdQuickGrid");
discParams->set("NeighborhoodType", "Spherical");
ParameterList& quickGridParams = discParams->sublist("TensorProduct3DMeshGenerator");
quickGridParams.set("Type", "PdQuickGrid");
quickGridParams.set("X Origin", 0.0);
quickGridParams.set("Y Origin", 0.0);
quickGridParams.set("Z Origin", 0.0);
quickGridParams.set("X Length", 1.0);
quickGridParams.set("Y Length", 1.0);
quickGridParams.set("Z Length", 1.0);
quickGridParams.set("Number Points X", 2);
quickGridParams.set("Number Points Y", 2);
quickGridParams.set("Number Points Z", 2);
// initialize the horizon manager and set the horizon to 0.501
ParameterList blockParameterList;
ParameterList& blockParams = blockParameterList.sublist("My Block");
blockParams.set("Block Names", "block_1");
blockParams.set("Horizon", 0.501);
PeridigmNS::HorizonManager::self().loadHorizonInformationFromBlockParameters(blockParameterList);
// create the discretization
RCP<PdQuickGridDiscretization> discretization =
rcp(new PdQuickGridDiscretization(comm, discParams));
// sanity check, calling with a dimension other than 1 or 3 should throw an exception
TEST_THROW(discretization->getGlobalOwnedMap(0), Teuchos::Exceptions::InvalidParameter);
TEST_THROW(discretization->getGlobalOwnedMap(2), Teuchos::Exceptions::InvalidParameter);
TEST_THROW(discretization->getGlobalOwnedMap(4), Teuchos::Exceptions::InvalidParameter);
// basic checks on the 1d map
Teuchos::RCP<const Epetra_BlockMap> map = discretization->getGlobalOwnedMap(1);
TEST_ASSERT(map->NumGlobalElements() == 8);
TEST_ASSERT(map->NumMyElements() == 4);
TEST_ASSERT(map->ElementSize() == 1);
TEST_ASSERT(map->IndexBase() == 0);
TEST_ASSERT(map->UniqueGIDs() == true);
int* myGlobalElements = map->MyGlobalElements();
if(rank == 0){
TEST_ASSERT(myGlobalElements[0] == 0);
TEST_ASSERT(myGlobalElements[1] == 2);
TEST_ASSERT(myGlobalElements[2] == 4);
TEST_ASSERT(myGlobalElements[3] == 6);
}
if(rank == 1){
TEST_ASSERT(myGlobalElements[0] == 5);
TEST_ASSERT(myGlobalElements[1] == 7);
TEST_ASSERT(myGlobalElements[2] == 1);
TEST_ASSERT(myGlobalElements[3] == 3);
}
// check the 1d overlap map
// for this simple discretization, everything should be ghosted on both processors
Teuchos::RCP<const Epetra_BlockMap> overlapMap = discretization->getGlobalOverlapMap(1);
TEST_ASSERT(overlapMap->NumGlobalElements() == 16);
TEST_ASSERT(overlapMap->NumMyElements() == 8);
TEST_ASSERT(overlapMap->ElementSize() == 1);
TEST_ASSERT(overlapMap->IndexBase() == 0);
TEST_ASSERT(overlapMap->UniqueGIDs() == false);
myGlobalElements = overlapMap->MyGlobalElements();
if(rank == 0){
TEST_ASSERT(myGlobalElements[0] == 0);
TEST_ASSERT(myGlobalElements[1] == 2);
TEST_ASSERT(myGlobalElements[2] == 4);
TEST_ASSERT(myGlobalElements[3] == 6);
TEST_ASSERT(myGlobalElements[4] == 1);
TEST_ASSERT(myGlobalElements[5] == 3);
TEST_ASSERT(myGlobalElements[6] == 5);
TEST_ASSERT(myGlobalElements[7] == 7);
}
if(rank == 1){
TEST_ASSERT(myGlobalElements[0] == 5);
TEST_ASSERT(myGlobalElements[1] == 7);
TEST_ASSERT(myGlobalElements[2] == 1);
TEST_ASSERT(myGlobalElements[3] == 3);
TEST_ASSERT(myGlobalElements[4] == 0);
TEST_ASSERT(myGlobalElements[5] == 2);
TEST_ASSERT(myGlobalElements[6] == 4);
TEST_ASSERT(myGlobalElements[7] == 6);
}
// same checks for 3d map
map = discretization->getGlobalOwnedMap(3);
TEST_ASSERT(map->NumGlobalElements() == 8);
TEST_ASSERT(map->NumMyElements() == 4);
TEST_ASSERT(map->ElementSize() == 3);
TEST_ASSERT(map->IndexBase() == 0);
TEST_ASSERT(map->UniqueGIDs() == true);
myGlobalElements = map->MyGlobalElements();
if(rank == 0){
TEST_ASSERT(myGlobalElements[0] == 0);
TEST_ASSERT(myGlobalElements[1] == 2);
TEST_ASSERT(myGlobalElements[2] == 4);
TEST_ASSERT(myGlobalElements[3] == 6);
}
if(rank == 1){
TEST_ASSERT(myGlobalElements[0] == 5);
TEST_ASSERT(myGlobalElements[1] == 7);
TEST_ASSERT(myGlobalElements[2] == 1);
TEST_ASSERT(myGlobalElements[3] == 3);
}
// check the 3d overlap map
// for this simple discretization, everything should be ghosted on both processors
overlapMap = discretization->getGlobalOverlapMap(3);
TEST_ASSERT(overlapMap->NumGlobalElements() == 16);
TEST_ASSERT(overlapMap->NumMyElements() == 8);
TEST_ASSERT(overlapMap->ElementSize() == 3);
TEST_ASSERT(overlapMap->IndexBase() == 0);
TEST_ASSERT(overlapMap->UniqueGIDs() == false);
myGlobalElements = overlapMap->MyGlobalElements();
if(rank == 0){
TEST_ASSERT(myGlobalElements[0] == 0);
TEST_ASSERT(myGlobalElements[1] == 2);
TEST_ASSERT(myGlobalElements[2] == 4);
TEST_ASSERT(myGlobalElements[3] == 6);
TEST_ASSERT(myGlobalElements[4] == 1);
TEST_ASSERT(myGlobalElements[5] == 3);
TEST_ASSERT(myGlobalElements[6] == 5);
TEST_ASSERT(myGlobalElements[7] == 7);
}
if(rank == 1){
TEST_ASSERT(myGlobalElements[0] == 5);
TEST_ASSERT(myGlobalElements[1] == 7);
TEST_ASSERT(myGlobalElements[2] == 1);
TEST_ASSERT(myGlobalElements[3] == 3);
TEST_ASSERT(myGlobalElements[4] == 0);
TEST_ASSERT(myGlobalElements[5] == 2);
TEST_ASSERT(myGlobalElements[6] == 4);
TEST_ASSERT(myGlobalElements[7] == 6);
}
// check the bond map
// the horizon was chosen such that each point should have three neighbors
// note that if the NeighborhoodType parameter is not set to Spherical, this will fail
Teuchos::RCP<const Epetra_BlockMap> bondMap = discretization->getGlobalBondMap();
TEST_ASSERT(bondMap->NumGlobalElements() == 8);
TEST_ASSERT(bondMap->NumMyElements() == 4);
TEST_ASSERT(bondMap->IndexBase() == 0);
TEST_ASSERT(bondMap->UniqueGIDs() == true);
myGlobalElements = bondMap->MyGlobalElements();
if(rank == 0){
TEST_ASSERT(myGlobalElements[0] == 0);
TEST_ASSERT(myGlobalElements[1] == 2);
TEST_ASSERT(myGlobalElements[2] == 4);
TEST_ASSERT(myGlobalElements[3] == 6);
}
if(rank == 1){
TEST_ASSERT(myGlobalElements[0] == 5);
TEST_ASSERT(myGlobalElements[1] == 7);
TEST_ASSERT(myGlobalElements[2] == 1);
TEST_ASSERT(myGlobalElements[3] == 3);
}
TEST_ASSERT(discretization->getNumBonds() == 4*3);
// check the initial positions
// all three coordinates are contained in a single vector
Teuchos::RCP<Epetra_Vector> initialX = discretization->getInitialX();
TEST_ASSERT(initialX->MyLength() == 4*3);
TEST_ASSERT(initialX->GlobalLength() == 8*3);
if(rank == 0){
TEST_FLOATING_EQUALITY((*initialX)[0], 0.25, 1.0e-16);
TEST_FLOATING_EQUALITY((*initialX)[1], 0.25, 1.0e-16);
TEST_FLOATING_EQUALITY((*initialX)[2], 0.25, 1.0e-16);
TEST_FLOATING_EQUALITY((*initialX)[3], 0.25, 1.0e-16);
TEST_FLOATING_EQUALITY((*initialX)[4], 0.75, 1.0e-16);
TEST_FLOATING_EQUALITY((*initialX)[5], 0.25, 1.0e-16);
TEST_FLOATING_EQUALITY((*initialX)[6], 0.25, 1.0e-16);
TEST_FLOATING_EQUALITY((*initialX)[7], 0.25, 1.0e-16);
TEST_FLOATING_EQUALITY((*initialX)[8], 0.75, 1.0e-16);
TEST_FLOATING_EQUALITY((*initialX)[9], 0.25, 1.0e-16);
TEST_FLOATING_EQUALITY((*initialX)[10], 0.75, 1.0e-16);
TEST_FLOATING_EQUALITY((*initialX)[11], 0.75, 1.0e-16);
}
if(rank == 1){
TEST_FLOATING_EQUALITY((*initialX)[0], 0.75, 1.0e-16);
TEST_FLOATING_EQUALITY((*initialX)[1], 0.25, 1.0e-16);
TEST_FLOATING_EQUALITY((*initialX)[2], 0.75, 1.0e-16);
TEST_FLOATING_EQUALITY((*initialX)[3], 0.75, 1.0e-16);
TEST_FLOATING_EQUALITY((*initialX)[4], 0.75, 1.0e-16);
TEST_FLOATING_EQUALITY((*initialX)[5], 0.75, 1.0e-16);
TEST_FLOATING_EQUALITY((*initialX)[6], 0.75, 1.0e-16);
TEST_FLOATING_EQUALITY((*initialX)[7], 0.25, 1.0e-16);
TEST_FLOATING_EQUALITY((*initialX)[8], 0.25, 1.0e-16);
TEST_FLOATING_EQUALITY((*initialX)[9], 0.75, 1.0e-16);
TEST_FLOATING_EQUALITY((*initialX)[10], 0.75, 1.0e-16);
TEST_FLOATING_EQUALITY((*initialX)[11], 0.25, 1.0e-16);
}
// check cell volumes
Teuchos::RCP<Epetra_Vector> volume = discretization->getCellVolume();
TEST_ASSERT(volume->MyLength() == 4);
TEST_ASSERT(volume->GlobalLength() == 8);
for(int i=0 ; i<volume->MyLength() ; ++i)
TEST_FLOATING_EQUALITY((*volume)[i], 0.125, 1.0e-16);
// check the neighbor lists
Teuchos::RCP<PeridigmNS::NeighborhoodData> neighborhoodData = discretization->getNeighborhoodData();
TEST_ASSERT(neighborhoodData->NumOwnedPoints() == 4);
int* ownedIds = neighborhoodData->OwnedIDs();
TEST_ASSERT(ownedIds[0] == 0);
TEST_ASSERT(ownedIds[1] == 1);
TEST_ASSERT(ownedIds[2] == 2);
TEST_ASSERT(ownedIds[3] == 3);
TEST_ASSERT(neighborhoodData->NeighborhoodListSize() == 16);
int* neighborhood = neighborhoodData->NeighborhoodList();
int* neighborhoodPtr = neighborhoodData->NeighborhoodPtr();
// remember, these are local IDs on each processor,
// which includes both owned and ghost nodes (confusing!)
if(rank == 0){
TEST_ASSERT(neighborhoodPtr[0] == 0);
TEST_ASSERT(neighborhood[0] == 3);
TEST_ASSERT(neighborhood[1] == 4);
TEST_ASSERT(neighborhood[2] == 1);
TEST_ASSERT(neighborhood[3] == 2);
TEST_ASSERT(neighborhoodPtr[1] == 4);
TEST_ASSERT(neighborhood[4] == 3);
TEST_ASSERT(neighborhood[5] == 0);
TEST_ASSERT(neighborhood[6] == 5);
TEST_ASSERT(neighborhood[7] == 3);
TEST_ASSERT(neighborhoodPtr[2] == 8);
TEST_ASSERT(neighborhood[8] == 3);
TEST_ASSERT(neighborhood[9] == 0);
TEST_ASSERT(neighborhood[10] == 6);
TEST_ASSERT(neighborhood[11] == 3);
TEST_ASSERT(neighborhoodPtr[3] == 12);
TEST_ASSERT(neighborhood[12] == 3);
TEST_ASSERT(neighborhood[13] == 1);
TEST_ASSERT(neighborhood[14] == 2);
TEST_ASSERT(neighborhood[15] == 7);
}
if(rank == 1){
TEST_ASSERT(neighborhoodPtr[0] == 0);
TEST_ASSERT(neighborhood[0] == 3);
TEST_ASSERT(neighborhood[1] == 2);
TEST_ASSERT(neighborhood[2] == 6);
TEST_ASSERT(neighborhood[3] == 1);
TEST_ASSERT(neighborhoodPtr[1] == 4);
TEST_ASSERT(neighborhood[4] == 3);
TEST_ASSERT(neighborhood[5] == 3);
TEST_ASSERT(neighborhood[6] == 0);
TEST_ASSERT(neighborhood[7] == 7);
TEST_ASSERT(neighborhoodPtr[2] == 8);
TEST_ASSERT(neighborhood[8] == 3);
TEST_ASSERT(neighborhood[9] == 4);
TEST_ASSERT(neighborhood[10] == 3);
TEST_ASSERT(neighborhood[11] == 0);
TEST_ASSERT(neighborhoodPtr[3] == 12);
TEST_ASSERT(neighborhood[12] == 3);
TEST_ASSERT(neighborhood[13] == 2);
TEST_ASSERT(neighborhood[14] == 5);
TEST_ASSERT(neighborhood[15] == 1);
}
}
