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Kim,
Hyesoon
Kim,
Hyesoon
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ItemExploration of the energy and thermal behaviors of emerging architectures(Georgia Institute of Technology, 2014-09-30) Yalamanchili, Sudhakar ; Kim, Hyesoon
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ItemQameleon: Hardware/software cooperative automated tuning for heterogeneous architectures(Georgia Institute of Technology, 2013-08) Kim, Hyesoon ; Vuduc, RichardThe main goal of this project is to develop a framework that simplifies programming for heterogeneous platforms. The framework consists of (i) a runtime system to generate code that partitions and schedules work among heterogeneous processors, (ii) a general automated tuning mechanism based on machine learning and (iii) performance and power modeling techniques and profiling techniques to aid code generation.
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ItemPower Modeling for GPU Architecture Using McPAT(Georgia Institute of Technology, 2013) Lim, Jieun ; Lakshminarayana, Nagesh B. ; Kim, Hyesoon ; Song, William ; Yalamanchili, Sudhakar ; Sung, WonyongGraphics Processing Units (GPUs) are very popular for both graphics and general-purpose applications. Since GPUs operate many processing units and manage multiple levels of memory hierarchy, they consume a significant amount of power. Although several power models for CPUs are available, the power consumption of GPUs has not been studied much yet. In this paper, we develop a new power model for GPUs by utilizing McPAT, a CPU power tool. We generate initial power model data from McPAT with a detailed GPU configuration, and then adjust the models by comparing them with empirical data.We use the NVIDIA’s Fermi architecture for building the power model, and our model estimates the GPU power consumption with an average error of 7.7% and 12.8% for the microbenchmarks and Merge benchmarks, respectively.