Higher Order Flattening

  title={Higher Order Flattening},
  author={Roman Leshchinskiy and Manuel M. T. Chakravarty and Gabriele Keller},
  booktitle={International Conference on Computational Science},
We extend the flattening transformation, which turns nested into flat data parallelism, to the full higher-order case, including lambda abstractions and data parallel arrays of functions. Our central observa-ions and data parallel arrays of functions. Our central observation is that flattening needs to transform the closures used to represent functional values. Thus, we use closure conversion before flattening and introduce array closures to represent arrays of functional values. 
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