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- W3100820146 abstract "Modern heterogeneous computing architectures, which couple multi-core CPUs with discrete many-core GPUs (or other specialized hardware accelerators), enable unprecedented peak performance and energy efficiency levels. However, developing applications that can take full advantage of the potential of heterogeneous systems is a notoriously hard task. This work takes a step towards reducing the complexity of programming heterogeneous systems by introducing the abstraction of Heterogeneous Transactional Memory (HeTM). HeTM provides programmers with the illusion of a single memory region, shared among the CPUs and the (discrete) GPU(s) of a heterogeneous system, with support for atomic transactions. Besides introducing the abstract semantics and programming model of HeTM, we present the design and evaluation of a concrete implementation of the proposed abstraction, referred herein as Speculative HeTM (SHeTM). SHeTM makes use of a novel design that leverages speculative techniques, which aims at hiding the inherently large communication latency between CPUs and discrete GPUs and at minimizing inter-device synchronization overhead. We demonstrate the efficiency of the SHeTM via an extensive quantitative study based both on synthetic benchmarks and on a popular object caching system." @default.
- W3100820146 created "2020-11-23" @default.
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- W3100820146 date "2019-09-01" @default.
- W3100820146 modified "2023-10-05" @default.
- W3100820146 title "HeTM: Transactional Memory for Heterogeneous Systems" @default.
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- W3100820146 doi "https://doi.org/10.1109/pact.2019.00026" @default.
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