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 = Import<>::local_ordinal_type,
            class GlobalOrdinal = typename Import<LocalOrdinal>::global_ordinal_type,
            class Node = typename Import<LocalOrdinal, GlobalOrdinal>::node_type>
  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) {
      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));
#endif

      XPETRA_FACTORY_ERROR_IF_EPETRA(source->lib());
      XPETRA_FACTORY_END;
    }

  };

  template <>
  class ImportFactory<int, int> {

    typedef int LocalOrdinal;
    typedef int GlobalOrdinal;
    typedef Import<int, GlobalOrdinal>::node_type 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) {
      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));
#endif

#ifdef HAVE_XPETRA_EPETRA
#ifndef XPETRA_EPETRA_NO_32BIT_GLOBAL_INDICES
      if (source->lib() == UseEpetra)
        return rcp( new EpetraImportT<int>(source, target));
#endif
#endif

      XPETRA_FACTORY_END;
    }

  };

#ifdef HAVE_XPETRA_INT_LONG_LONG
  template <>
  class ImportFactory<int, long long> {

    typedef int LocalOrdinal;
    typedef long long GlobalOrdinal;
    typedef Import<int, GlobalOrdinal>::node_type 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) {
      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));
#endif

#ifdef HAVE_XPETRA_EPETRA
#ifndef XPETRA_EPETRA_NO_64BIT_GLOBAL_INDICES
      if (source->lib() == UseEpetra)
        return rcp( new EpetraImportT<long long>(source, target));
#endif
#endif

      XPETRA_FACTORY_END;
    }

  };
#endif // HAVE_XPETRA_INT_LONG_LONG

}

#define XPETRA_IMPORTFACTORY_SHORT
#endif