Hiren Patel

Professor, Electrical and Computer Engineering
University of Waterloo

Hiren Patel is a Professor in the Department of Electrical and Computer Engineering at the University of Waterloo. Prior to the University of Waterloo, he was a postdoctoral fellow at the University of California, Berkeley working in the Ptolemy group. He received his Ph.D. at Virginia Tech. His research is in the design, analysis, and implementation of computer hardware and software. He leads the Computer Architecture and Embedded Systems Research group, which currently focuses on real-time embedded systems, computer architecture, hardware architectures for machine learning and artificial intelligence, and security.

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News

Paper at SC Workshops 2025: RISC-V Vectorization Coverage Nov 7, 2025
A paper on RISC-V vector-extension coverage for HPC appeared at the SC '25 Workshops.
Journal paper in ACM TECS: Optimal Split Points for GPU Wavefront Splitting Sep 23, 2025
Artem Klashtorny's article on optimal split-point placement appeared in ACM Transactions on Embedded Computing Systems.
Paper at Euro-Par 2025: ARM SVE on Nvidia Grace Aug 22, 2025
A paper on ARM SVE performance across HPC applications appeared at Euro-Par 2025.
Two papers at RTAS 2025 May 6, 2025
Zhuanhao Wu and Xinzhe Wang presented papers at the IEEE Real-Time and Embedded Technology and Applications Symposium (RTAS) 2025.

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Recent Publications

RISC-V Vectorization Coverage for HPC: A TSVC-Based Analysis

Hung-Ming Lai, Pei-Hung Lin, Maya B. Gokhale, Ivy Bo Peng, Hiren Patel, Jenq-Kuen Lee
SC-W , 2025

Optimal Split Point Placement for Predictable GPU Wavefront Splitting

Artem Klashtorny, Mahesh Tripunitara, Hiren Patel
TECS , 2025

ARM SVE Unleashed: Performance and Insights Across HPC Applications on Nvidia Grace

Ruimin Shi, Gabin Schieffer, Maya B. Gokhale, Pei-Hung Lin, Hiren Patel, Ivy Bo Peng
Euro-Par , 2025

Consistency-aware and Predictable Memory Processing for Safety-critical Out-of-order Multicores

Zhuanhao Wu, Hiren Patel
RTAS , 2025

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Awards & Honours

2026 Test-of-Time Award, CODES, for PRET DRAM Controller: Bank Privatization for Predictability and Temporal Isolation (CODES 2011)
2023 Test-of-Time Award, CASES, for Predictable Programming on a Precision Timed Architecture (CASES 2008)
2023 Best paper nomination, DATE, for Ditty: Directory-based Cache Coherence for Multicore Safety-critical Systems
2022 Outstanding Performance Award, University of Waterloo
2021 Marsland Faculty Fellowship Award, University of Waterloo
2014 Best paper candidate, ASP-DAC, for Bounding Buffer Space Requirements for Real-Time Priority-Aware Networks
2010 Best paper award, ASP-DAC, for SCGPSim: A Fast SystemC Simulator on GPUs

Research Projects

Predictable Cache Coherence Hardware cache coherence for real-time and mixed-criticality multicores, with analyzable worst-case latency.

Predictable GPUs for Safety-critical Systems GPU micro-architecture and compiler support that make worst-case execution time analyzable.

Predictable Shared Last-level Caches Shared last-level caches for safety-critical multicores that add capacity without inflating worst-case latency.

RISC-V RVV · ARM SVE

Vector Extensions for High-performance Computing How well compilers and HPC applications use scalable vector extensions such as RISC-V RVV and ARM SVE.

Past projects →

Prospective Students

Students must have a strong background in programming (both software and hardware). If you are applying to either the Computer Science or Electrical and Computer Engineering department, and are interested in this research, then please send me your CV. Unfortunately, it may not be possible to respond to all email.

Selected Service

Special Issue Editor, ACM Transactions on Embedded Computing Systems (TECS), 2020 –
Senior Associate Editor, ACM Transactions on Embedded Computing Systems (TECS), 2017 – 2020
Associate Editor, ACM Transactions on Embedded Computing Systems (TECS), 2013 – 2016
Recent conference TPCs: DATE (2024, 2023, 2021, 2020), DAC (2021, 2019, 2018, 2017, 2016), RTSS (2020, 2018), RTAS (2018, 2017, 2015), ASP-DAC (2019, 2018), EMSOFT (2021), ICCAD (2021, 2020, 2019, 2015, 2014, 2013), FDL (2023, 2022, 2021, 2020, 2019, 2018, 2017)