Xpetra_ExportFactory.hpp

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//             Xpetra: A linear algebra interface package
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#ifndef XPETRA_EXPORTFACTORY_HPP
#define XPETRA_EXPORTFACTORY_HPP

#include "Xpetra_ConfigDefs.hpp"

#include "Xpetra_Export.hpp"

#ifdef HAVE_XPETRA_TPETRA
#include "Xpetra_TpetraExport.hpp"
#endif
#ifdef HAVE_XPETRA_EPETRA
#include "Xpetra_EpetraExport.hpp"
#endif

#include "Xpetra_Exceptions.hpp"

namespace Xpetra {

  template <class LocalOrdinal = Export<>::local_ordinal_type,
            class GlobalOrdinal = typename Export<LocalOrdinal>::global_ordinal_type,
            class Node = typename Export<LocalOrdinal, GlobalOrdinal>::node_type>
  class ExportFactory {
  private:
    ExportFactory() {}

  public:

    static RCP<Export<LocalOrdinal, GlobalOrdinal, Node> > Build(const RCP<const Map<LocalOrdinal, GlobalOrdinal, Node> > &source, const RCP<const Map<LocalOrdinal, GlobalOrdinal, Node> > &target) {
      XPETRA_MONITOR("ExportFactory::Build");
      TEUCHOS_TEST_FOR_EXCEPTION(source->lib() != target->lib(), Xpetra::Exceptions::RuntimeError, "");

#ifdef HAVE_XPETRA_TPETRA
      if (source->lib() == UseTpetra)
        return rcp( new TpetraExport<LocalOrdinal, GlobalOrdinal, Node>(source, target));
#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))
  template <>
  class ExportFactory<int, int, EpetraNode> {

    typedef int LocalOrdinal;
    typedef int GlobalOrdinal;
    typedef EpetraNode Node;

  private:
    ExportFactory() {}

  public:

    static RCP<Export<LocalOrdinal, GlobalOrdinal, Node> > Build(const RCP<const Map<LocalOrdinal, GlobalOrdinal, Node> > &source, const RCP<const Map<LocalOrdinal, GlobalOrdinal, Node> > &target) {
      XPETRA_MONITOR("ExportFactory::Build");

      TEUCHOS_TEST_FOR_EXCEPTION(source->lib() != target->lib(), Xpetra::Exceptions::RuntimeError, "");

#ifdef HAVE_XPETRA_TPETRA
      if (source->lib() == UseTpetra)
        return rcp( new TpetraExport<LocalOrdinal, GlobalOrdinal, Node>(source, target));
#endif

      if (source->lib() == UseEpetra)
        return rcp( new EpetraExportT<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 ExportFactory<int, long long, EpetraNode> {

    typedef int LocalOrdinal;
    typedef long long GlobalOrdinal;
    typedef EpetraNode Node;

  private:
    ExportFactory() {}

  public:

    static RCP<Export<LocalOrdinal, GlobalOrdinal, Node> > Build(const RCP<const Map<LocalOrdinal, GlobalOrdinal, Node> > &source, const RCP<const Map<LocalOrdinal, GlobalOrdinal, Node> > &target) {
      XPETRA_MONITOR("ExportFactory::Build");

      TEUCHOS_TEST_FOR_EXCEPTION(source->lib() != target->lib(), Xpetra::Exceptions::RuntimeError, "");

#ifdef HAVE_XPETRA_TPETRA
      if (source->lib() == UseTpetra)
        return rcp( new TpetraExport<LocalOrdinal, GlobalOrdinal, Node>(source, target));
#endif

      if (source->lib() == UseEpetra)
        return rcp( new EpetraExportT<long long, Node>(source, target));

      XPETRA_FACTORY_END;
    }

  };
#endif

}

#define XPETRA_EXPORTFACTORY_SHORT
#endif