The [Accelerate reference interpreter](http://hackage.haskell.org/package/accelerate-1.3.0.0/docs/Data-Array-Accelerate-Interpreter.html) does not appear to have a `Foreign` instance, preventing the use of `foreignAcc` and `foreignExp`.
The Accelerate reference interpreter does not appear to have a
Foreigninstance, preventing the use offoreignAccandforeignExp.