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Utah State University

Theses/Dissertations

2019

Near-Threshold Computing

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Full-Text Articles in Engineering

Toward Reliable, Secure, And Energy-Efficient Multi-Core System Design, Prabal Basu Aug 2019

Toward Reliable, Secure, And Energy-Efficient Multi-Core System Design, Prabal Basu

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Computer hardware researchers have perennially focussed on improving the performance of computers while stipulating the energy consumption under a strict budget. While several innovations over the years have led to high performance and energy efficient computers, more challenges have also emerged as a fallout. For example, smaller transistor devices in modern multi-core systems are afflicted with several reliability and security concerns, which were inconceivable even a decade ago. Tackling these bottlenecks happens to negatively impact the power and performance of the computers. This dissertation explores novel techniques to gracefully solve some of the pressing challenges of the modern computer design. …


Predicting Critical Warps In Near-Threshold Gpgpu Applications Using A Dynamic Choke Point Analysis, Sourav Sanyal Aug 2019

Predicting Critical Warps In Near-Threshold Gpgpu Applications Using A Dynamic Choke Point Analysis, Sourav Sanyal

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

General purpose graphics processing units (GP-GPU), owing to their enormous thread-level parallelism, can significantly improve the power consumption at the near-threshold (NTC) operating region, while offering close to a super-threshold performance. However, process variation (PV) can drastically reduce the GPU performance at NTC. In this work, choke points—a unique device-level characteristic of PV at NTC—that can exacerbate the warp criticality problem in GPUs have been explored. It is shown that the modern warp schedulers cannot tackle the choke point induced critical warps in an NTC GPU. Additionally, Choke Point Aware Warp Speculator, a circuit-architectural solution is proposed to dynamically …


Understanding Security Threats Of Emerging Computing Architectures And Mitigating Performance Bottlenecks Of On-Chip Interconnects In Manycore Ntc System, Chidhambaranathan Rajamanikkam May 2019

Understanding Security Threats Of Emerging Computing Architectures And Mitigating Performance Bottlenecks Of On-Chip Interconnects In Manycore Ntc System, Chidhambaranathan Rajamanikkam

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Emerging computing architectures such as, neuromorphic computing and third party intellectual property (3PIP) cores, have attracted significant attention in the recent past. Neuromorphic Computing introduces an unorthodox non-von neumann architecture that mimics the abstract behavior of neuron activity of the human brain. They can execute more complex applications, such as image processing, object recognition, more efficiently in terms of performance and energy than the traditional microprocessors. However, focus on the hardware security aspects of the neuromorphic computing at its nascent stage. 3PIP core, on the other hand, have covertly inserted malicious functional behavior that can inflict range of harms at …