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ASPLOS
2013
ACM

GPUDet: a deterministic GPU architecture

10 years 7 months ago
GPUDet: a deterministic GPU architecture
Nondeterminism is a key challenge in developing multithreaded applications. Even with the same input, each execution of a multithreaded program may produce a different output. This behavior complicates debugging and limits one’s ability to test for correctness. This non-reproducibility situation is aggravated on massively parallel architectures like graphics processing units (GPUs) with thousands of concurrent threads. We believe providing a deterministic environment to ease debugging and testing of GPU applications is essential to enable a broader class of software to use GPUs. Many hardware and software techniques have been proposed for providing determinism on general-purpose multi-core processors. However, these techniques are designed for small numbers of threads. Scaling them to thousands of threads on a GPU is a major challenge. This paper proposes a scalable hardware mechanism, GPUDet, to provide determinism in GPU architectures. In this paper we characterize the existing de...
Hadi Jooybar, Wilson W. L. Fung, Joseph Devietti,
Added 27 Apr 2014
Updated 27 Apr 2014
Type Journal
Year 2013
Where ASPLOS
Authors Hadi Jooybar, Wilson W. L. Fung, Joseph Devietti, Tor M. Aamodt
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