void ZoltanInterface<LocalOrdinal, GlobalOrdinal, Node, LocalMatOps>::
GetProblemGeometry(void *data, int numGIDEntries, int numLIDEntries, int numObjectIDs,
ZOLTAN_ID_PTR gids, ZOLTAN_ID_PTR lids, int dim, double *coordinates, int *ierr)
{
if (data == NULL) {
*ierr = ZOLTAN_FATAL;
return;
}
MultiVector *Coords = (MultiVector*) data;
if (dim != Teuchos::as<int>(Coords->getNumVectors())) {
//FIXME I'm assuming dim should be 1, 2, or 3 coming in?!
*ierr = ZOLTAN_FATAL;
return;
}
TEUCHOS_TEST_FOR_EXCEPTION(numObjectIDs != Teuchos::as<int>(Coords->getLocalLength()), Exceptions::Incompatible, "Length of coordinates must be the same as the number of objects");
ArrayRCP<ArrayRCP<const SC> > CoordsData(dim);
for (int j = 0; j < dim; ++j)
CoordsData[j] = Coords->getData(j);
size_t numElements = Coords->getLocalLength();
for (size_t i = 0; i < numElements; ++i)
for (int j = 0; j < dim; ++j)
coordinates[i*dim+j] = (double) CoordsData[j][i];
*ierr = ZOLTAN_OK;
} //GetProblemGeometry
void Amesos2Smoother<Scalar, LocalOrdinal, GlobalOrdinal, Node>::Apply(MultiVector& X, const MultiVector& B, bool InitialGuessIsZero) const {
TEUCHOS_TEST_FOR_EXCEPTION(SmootherPrototype::IsSetup() == false, Exceptions::RuntimeError, "MueLu::Amesos2Smoother::Apply(): Setup() has not been called");
RCP<Tpetra_MultiVector> tX, tB;
if (!useTransformation_) {
tX = Utilities::MV2NonConstTpetraMV2(X);
tB = Utilities::MV2NonConstTpetraMV2(const_cast<MultiVector&>(B));
} else {
// Copy data of the original vectors into the transformed ones
size_t numVectors = X.getNumVectors();
size_t length = X.getLocalLength();
TEUCHOS_TEST_FOR_EXCEPTION(numVectors > 1, Exceptions::RuntimeError,
"MueLu::Amesos2Smoother::Apply: Fixing coarse matrix for Amesos2 for multivectors has not been implemented yet.");
ArrayRCP<const SC> Xdata = X. getData(0), Bdata = B. getData(0);
ArrayRCP<SC> X_data = X_->getDataNonConst(0), B_data = B_->getDataNonConst(0);
for (size_t i = 0; i < length; i++) {
X_data[i] = Xdata[i];
B_data[i] = Bdata[i];
}
tX = Utilities::MV2NonConstTpetraMV2(*X_);
tB = Utilities::MV2NonConstTpetraMV2(*B_);
}
prec_->setX(tX);
prec_->setB(tB);
prec_->solve();
prec_->setX(Teuchos::null);
prec_->setB(Teuchos::null);
if (useTransformation_) {
// Copy data from the transformed vectors into the original ones
size_t length = X.getLocalLength();
ArrayRCP<SC> Xdata = X. getDataNonConst(0);
ArrayRCP<const SC> X_data = X_->getData(0);
for (size_t i = 0; i < length; i++)
Xdata[i] = X_data[i];
}
}