An integrated scratch-pad allocator for affine and non-affine code

Abstract

Scratch-pad memory (SPM) allocators that exploit the presence of affine references to arrays are important for scientific benchmarks. On the other hand, such allocators have so far been limited in their general applicability. In this paper we propose an integrated scheme that for the first time combines the specialized solution for affine program allocation with a general framework for other code. We find that our integrated framework does as well or outperforms other allocators for a variety of SPM sizes.