Runtime Procedure for Energy Savings in Applications with Point-to-Point Communications

Although high-performance computing has always been about efficient application execution, both energy and power consumption have become critical concerns owing to their effect on operating costs and failure rates of large-scale computing platforms. Modern microprocessors are equipped with the capab...

Full description

Saved in:
Bibliographic Details
Main Authors: Sundriyal, V., Sosonkina, M., Gaenko, A.
Format: Conference Proceeding
Language:English
Subjects:
Benchmark testing
Degradation
Power demand
Radiation detectors
Runtime
Switches
Time frequency analysis
Online Access:Request full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Although high-performance computing has always been about efficient application execution, both energy and power consumption have become critical concerns owing to their effect on operating costs and failure rates of large-scale computing platforms. Modern microprocessors are equipped with the capabilities to reduce their power consumption using techniques such as dynamic voltage and frequency scaling (DVFS) and CPU clock modulation (called throttling). Without careful application, however, DVFS and throttling may cause a significant performance loss due to system overhead. This work presents design considerations for a runtime procedure that dynamically analyzes blocking point-to-point communications, groups them according to the proposed criteria, and applies frequency scaling by analyzing both communication and architectural parameters without penalizing the performance much. Experiments, performed on NAS parallel benchmarks verify the proposed design by exhibiting energy savings of as much as 11% with a performance loss as low as 2%.
ISSN:1550-6533
2643-3001
DOI:10.1109/SBAC-PAD.2012.20