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Created by James Willenbring@jmwilleOwner

Xpetra appears to require GlobalOrdinal=int even when Tpetra_INST_INT_INT=OFF

Created by: mhoemmen

@trilinos/xpetra @trilinos/tpetra

Xpetra appears to attempt to instantiate Tpetra::Map<int, int, ...>, or at least to use its declarations, even when Tpetra_INST_INT_INT=OFF. For example, when I put a static_assert in Tpetra::Map that requires GlobalOrdinal == long long, I am able to build all of Tpetra, but get the following Xpetra build errors:

In file included from .../packages/tpetra/core/src/Tpetra_Map.hpp:1:0,
                 from .../Trilinos/packages/xpetra/src/Map/Xpetra_Map.hpp:61,
                 from .../Trilinos/packages/xpetra/src/Export/Xpetra_Export.hpp:54,
                 from .../Trilinos/packages/xpetra/src/Export/Xpetra_EpetraExport.hpp:51,
                 from .../Trilinos/packages/xpetra/src/Export/Xpetra_EpetraExport.cpp:46:
.../Trilinos/packages/tpetra/core/src/Tpetra_Map_decl.hpp: In instantiation of ‘class Tpetra::Map<int, int, Kokkos::Compat::KokkosDeviceWrapperNode<Kokkos::OpenMP> >’:
.../Trilinos/packages/xpetra/src/Map/Xpetra_Map.hpp:224:85:   required from ‘class Xpetra::Map<>’
.../Trilinos/packages/xpetra/src/Export/Xpetra_Export.hpp:59:39:   required from here
.../Trilinos/packages/tpetra/core/src/Tpetra_Map_decl.hpp:257:5: error: static assertion failed: UH OH
     static_assert (std::is_same<global_ordinal_type, long long>::value, "UH OH");
     ^