SimplePIM: A Software Framework for Productive and Efficient Processing-in-Memory
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Date
2023Type
- Conference Paper
ETH Bibliography
yes
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Abstract
Data movement between memory and processors is a major bottleneck in modern computing systems. The processing-in-memory (PIM) paradigm aims to alleviate this bottleneck by performing computation inside memory chips. Real PIM hardware (e.g., the UPMEM system) is now available and has demonstrated potential in many applications. However, programming such real PIM hardware remains a challenge for many programmers. This paper presents a new software framework, SimplePIM, to aid programming real PIM systems. The framework processes arrays of arbitrary elements on a PIM device by calling iterator functions from the host and provides primitives for communication among PIM cores and between PIM and the host system. We implement SimplePIM for the UPMEM PIM system and evaluate it on six major applications. Our results show that SimplePIM enables 66.5% to 83.1% reduction in lines of code in PIM programs. The resulting code leads to higher performance (between 10% and 37% speedup) than hand-optimized code in three applications and provides comparable performance in three others. SimplePIM is fully and freely available at https://github.com/CMU-SAFARI/SimplePIM. Show more
Publication status
publishedExternal links
Book title
2023 32nd International Conference on Parallel Architectures and Compilation Techniques (PACT)Pages / Article No.
Publisher
IEEEEvent
Subject
In memory processingOrganisational unit
09483 - Mutlu, Onur / Mutlu, Onur
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ETH Bibliography
yes
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