Xpetra_ImportFactory.hpp

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//             Xpetra: A linear algebra interface package
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#ifndef XPETRA_IMPORTFACTORY_HPP
#define XPETRA_IMPORTFACTORY_HPP
 
#include "Xpetra_ConfigDefs.hpp"
 
#include "Xpetra_Import.hpp"
 
#ifdef HAVE_XPETRA_TPETRA
#include "Xpetra_TpetraImport.hpp"
#endif
#ifdef HAVE_XPETRA_EPETRA
#include "Xpetra_EpetraImport.hpp"
#endif
 
#include "Xpetra_Exceptions.hpp"
 
namespace Xpetra {
 
  template <class LocalOrdinal,
            class GlobalOrdinal,
            class Node = Tpetra::KokkosClassic::DefaultNode::DefaultNodeType>
  class ImportFactory {
  private:
    ImportFactory() {}
 
  public:

    static RCP<Import<LocalOrdinal, GlobalOrdinal, Node> > Build(const RCP<const Map<LocalOrdinal, GlobalOrdinal, Node> > &source,
                                                                 const RCP<const Map<LocalOrdinal, GlobalOrdinal, Node> > &target,
                                                                 const Teuchos::RCP<Teuchos::ParameterList>& plist = Teuchos::null) {
      XPETRA_MONITOR("ImportFactory::Build");
 
      TEUCHOS_TEST_FOR_EXCEPTION(source->lib() != target->lib(), Xpetra::Exceptions::RuntimeError, "");
 
#ifdef HAVE_XPETRA_TPETRA
      if (source->lib() == UseTpetra)
        return rcp( new TpetraImport<LocalOrdinal, GlobalOrdinal, Node>(source, target, plist));
#endif
 
      XPETRA_FACTORY_ERROR_IF_EPETRA(source->lib());
      XPETRA_FACTORY_END;
    }
 
  };
 
// we need the Epetra specialization only if Epetra is enabled
#if (defined(HAVE_XPETRA_EPETRA) && !defined(XPETRA_EPETRA_NO_32BIT_GLOBAL_INDICES))
 
  // Specialization on LO=GO=int with serial node.
  // Used for Epetra and Tpetra
  // For any other node definition the general default implementation is used which allows Tpetra only
  template <>
  class ImportFactory<int, int, EpetraNode> {
    typedef int LocalOrdinal;
    typedef int GlobalOrdinal;
    typedef EpetraNode Node;
 
  private:
    ImportFactory() {}
 
  public:
 
    static RCP<Import<LocalOrdinal, GlobalOrdinal, Node> > Build(const RCP<const Map<LocalOrdinal, GlobalOrdinal, Node> > &source,
                                                                 const RCP<const Map<LocalOrdinal, GlobalOrdinal, Node> > &target,
                                                                 const Teuchos::RCP<Teuchos::ParameterList>& plist = Teuchos::null) {
      XPETRA_MONITOR("ImportFactory::Build");
      TEUCHOS_TEST_FOR_EXCEPTION(source->lib() != target->lib(), Xpetra::Exceptions::RuntimeError, "");
 
#ifdef HAVE_XPETRA_TPETRA
      if (source->lib() == UseTpetra)
        return rcp( new TpetraImport<LocalOrdinal, GlobalOrdinal, Node>(source, target,plist));
#endif
 
      if (source->lib() == UseEpetra)
        return rcp( new EpetraImportT<int,Node>(source, target));
 
      XPETRA_FACTORY_END;
    }
 
  };
#endif
 
// we need the Epetra specialization only if Epetra is enabled
#if (defined(HAVE_XPETRA_EPETRA) && !defined(XPETRA_EPETRA_NO_64BIT_GLOBAL_INDICES))
  template <>
  class ImportFactory<int, long long, EpetraNode> {
 
    typedef int LocalOrdinal;
    typedef long long GlobalOrdinal;
    typedef EpetraNode Node;
 
  private:
    ImportFactory() {}
 
  public:
 
    static RCP<Import<LocalOrdinal, GlobalOrdinal, Node> > Build(const RCP<const Map<LocalOrdinal, GlobalOrdinal, Node> > &source,
                                                                 const RCP<const Map<LocalOrdinal, GlobalOrdinal, Node> > &target,
                                                                 const Teuchos::RCP<Teuchos::ParameterList>& plist = Teuchos::null) {
      XPETRA_MONITOR("ImportFactory::Build");
      TEUCHOS_TEST_FOR_EXCEPTION(source->lib() != target->lib(), Xpetra::Exceptions::RuntimeError, "");
 
#ifdef HAVE_XPETRA_TPETRA
      if (source->lib() == UseTpetra)
        return rcp( new TpetraImport<LocalOrdinal, GlobalOrdinal, Node>(source, target, plist));
#endif
 
      if (source->lib() == UseEpetra)
        return rcp( new EpetraImportT<long long,Node>(source, target));
 
      XPETRA_FACTORY_END;
    }
 
  };
#endif
}
 
#define XPETRA_IMPORTFACTORY_SHORT
#endif