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Enabling Multi-threaded Applications on Hybrid Shared Memory Manycore Architectures

abstract: As the number of cores per chip increases, maintaining cache coherence becomes prohibitive for both power and performance. Non Coherent Cache (NCC) architectures do away with hardware-based cache coherence, but they become difficult to program. Some existing architectures provide a middle ground by providing some shared memory in the hardware. Specifically, the 48-core Intel Single-chip Cloud Computer (SCC) provides some off-chip (DRAM) shared memory some on-chip (SRAM) shared memory. We call such architectures Hybrid Shared Memory, or HSM, manycore architectures. However, how to efficiently execute multi-threaded programs on HSM architectures is an open problem. To be able to execute a multi-threaded program correctly on HSM architectures, the compiler must: i) identify all the shared data and map it to the shared memory, and ii) map the frequently accessed shared data to the on-chip shared memory. This work presents a source-to-source translator written using CETUS that identifies a conservative superset of all the shared data in a multi-threaded application and maps it to the shared memory such that it enables execution on HSM architectures. / Dissertation/Thesis / Masters Thesis Computer Science 2014

Identiferoai:union.ndltd.org:asu.edu/item:27434
Date January 2014
ContributorsRawat, Tushar Shishpal (Author), Shrivastava, Aviral (Advisor), Dasgupta, Partha (Committee member), Fainekos, Georgios (Committee member), Arizona State University (Publisher)
Source SetsArizona State University
LanguageEnglish
Detected LanguageEnglish
TypeMasters Thesis
Format65 pages
Rightshttp://rightsstatements.org/vocab/InC/1.0/, All Rights Reserved

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