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A technique for Compilation to Exposed Memory Hierarchy (1999)
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@TECHREPORT{Greenwald99atechnique,
author = {Benjamin Eliot Greenwald},
title = {A technique for Compilation to Exposed Memory Hierarchy},
institution = {},
year = {1999}
}
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Abstract
requirements for the degree ofMaster of Science Abstract A tremendous amount of compiler research effort over the past ten years has been devotedto compensating for the deficiencies in hardware cache memory hierarchy. In this thesis, we propose a refocus of these energies towards compilation for memory hierarchy whichis exposed to the compiler. With software exposure of memory hierarchy, not only can replacement policies be tailored to the application, but pollution can be minimized or elim-inated, allowing programs to achieve memory reference locality with less local memory than would be needed by a cache. Additionally, prefetch latencies are fully exposed andcan be hidden by the compiler, thereby improving overall performance. We have developed a technique we call Compiler Controlled Hierarchical Reuse Man-agement (or C-CHARM), implemented using the Stanford SUIF compiler system, which gathers compile time reuse information coupled with array dependence information, rewritesloops to use a truly minimal amount of local memory, and generates the necessary explicit data movement operations for the simple, software exposed hierarchical memory system ofthe M.I.T. RAW machine. Thesis Supervisor: Saman AmarasingheTitle: Assistant Professor 2
Keyphrases
exposed memory hierarchy local memory prefetch latency past ten year memory hierarchy whichis minimal amount science abstract tremendous amount thesis supervisor necessary explicit data movement operation array dependence information energy towards compilation memory hierarchy saman amarasinghetitle software exposure compiler controlled hierarchical reuse man-agement assistant professor degree ofmaster overall performance compile time reuse information memory reference locality hardware cache memory hierarchy compiler research effort stanford suif compiler system
