You need to define an offset_ptr with 64 bit OffsetType

typedef offset_ptr my_offset_ptr;

and instantiate all interprocess managed resources like (basic_managed_shared_memory) like this:

typedef basic_managed_shared_memory ,iset_index> managed_shared_memory;

Again, this is not supported and it's still experimental.

Thanks for the guidance. It may work for my pirposes, as I dont intend to use any boost facilities except some basic block allocations of memory. One suggestion; make a 32-vs-64 bit test part of the setup code, so when a known incompatible producer/consumer relationship exists, it can gracefully throw an error instead of failing mysteriously.