GPALast updated on Jul 20, 2023CodePerformance Tool GPU Instruction Sampling Feedback-directed OptimizationKeren ZhouAssistant ProfessorA humble learner.PublicationsAccelerating High-order Stencils on GPUsFinite-difference methods based on high-order stencils are commonly used for modeling of seismic wave propagation, weather forecasting, …Ryuichi Sai, John Mellor-Crummey, Xiaozhu Meng, Keren Zhou, Mauricio Araya-Polo, Jie MengCite Project DOI URLAn Automated Tool for Analysis and Tuning of GPU-Accelerated Code in HPC ApplicationsThe US Department of Energy’s fastest supercomputers and forthcoming exascale systems employ Graphics Processing Units (GPUs) to …Keren Zhou, Xiaozhu Meng, Ryuichi Sai, Dejan Grubisic, John Mellor-CrummeyCite Project DOI URLGPA: A GPU Performance Advisor Based on Instruction SamplingDeveloping efficient GPU kernels can be difficult because of the complexity of GPU architectures and programming models. Existing …Keren Zhou, Xiaozhu Meng, Ryuichi Sai, John Mellor-CrummeyCite Project DOI URLA Performance Analysis Framework for Exploiting GPU Microarchitectural CapabilityGPUs are widely used in accelerating deep neural networks (DNNs) for their high bandwidth and parallelism. But tuning the performance …Keren Zhou, Guangming Tan, Xiuxia Zhang, Chaowei Wang, Ninghui SunCite Project DOI URLUnderstanding the GPU Microarchitecture to Achieve Bare-Metal Performance TuningIn this paper, we present a methodology to understand GPU microarchitectural features and improve performance for compute-intensive …Xiuxia Zhang, Guangming Tan, Shuangbai Xue, Jiajia Li, Keren Zhou, Mingyu ChenCite Project DOI URLEventsPerformance Measurement, Analysis, and Optimization of GPU-accelerated ApplicationsPresented a poster and a talk about my PhD researchNov 15, 2021 9:54 PM — 9:54 PM St. Louis, MO, USAKeren ZhouProject Project Project PosterGPA: A GPU Performance Advisor Based on Instruction SamplingPresented our work on GPU performance advisor at CGO21Mar 1, 2021 9:34 PM — 9:34 PM VirtualKeren ZhouProject Slides