9 Result(s)
within
Chapter
Chung-Hsing Hsu
English
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Chapter and Conference Paper
Investigating Data Motion Power Trends to Enable Power-Efficient OpenSHMEM Implementations
As we continue to develop extreme-scale systems, it is becoming increasingly important to be mindful and more in control of power consumed by these systems. With high performance requirements being more constr...
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Chapter and Conference Paper
Analyzing the Energy and Power Consumption of Remote Memory Accesses in the OpenSHMEM Model
PGAS models like OpenSHMEM provide interfaces to explicitly initiate one-sided remote memory accesses among processes. In addition, the model also provides synchronizing barriers to ensure a consistent view of...
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Chapter and Conference Paper
OpenSHMEM Extensions and a Vision for Its Future Direction
The Extreme Scale Systems Center (ESSC) at Oak Ridge National Laboratory (ORNL), together with the University of Houston, led the effort to standardize the SHMEM API with input from the vendors and user commun...
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Chapter and Conference Paper
TUE, a New Energy-Efficiency Metric Applied at ORNL’s Jaguar
The metric, Power Usage Effectiveness (PUE), has been successful in improving energy efficiency of data centers, but it is not perfect. One challenge is that PUE does not account for the power distribution and...
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Chapter
Compiler-Directed Dynamic CPU Frequency and Voltage Scaling
This paper presents the design, implementation, and evaluation of a compiler algorithm that effectively optimizes programs for energy usage using dynamic voltage and frequency scaling (DVFS). The algorithm ide...
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Chapter and Conference Paper
Effective Dynamic Voltage Scaling Through CPU-Boundedness Detection
Dynamic voltage scaling (DVS) allows a program to execute at a non-peak CPU frequency in order to reduce CPU power, and hence, energy consumption; however, it is oftentimes done at the expense of performance d...
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Chapter and Conference Paper
Dynamic Voltage and Frequency Scaling for Scientific Applications
Dynamic voltage and frequency scaling (DVFS) of the CPU has been shown to be one of the most effective ways to reduce energy consumption of a program. This paper discusses the benefit of dynamic voltage and fr...
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Chapter and Conference Paper
Single Region vs. Multiple Regions: A Comparison of Different Compiler-Directed Dynamic Voltage Scheduling Approaches
This paper discusses the design and implementation of a profile-based power-aware compiler using dynamic voltage scaling. The compiler identifies program regions where the CPU can be slowed down without result...
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Chapter and Conference Paper
Compiler-Directed Dynamic Frequency and Voltage Scheduling
Dynamic voltage and frequency scaling has been identified as one of the most effective ways to reduce power dissipation. This paper discusses a compilation strategy that identifies opportunities for dynamic vo...
