Matthew Forshaw
Flipping the priority: effects of prioritising HTC jobs on energy consumption in a multi-use cluster
Forshaw, Matthew; McGough, A. Stephen
Authors
A. Stephen McGough
Abstract
High Throughput Computing (HTC) through the use of vol- unteer computing provides a compelling opportunity to per- form large volumes of computation without the need to in- vest in computational resources. This relies on the good will of computer owners who volunteer their computer idle time. In scenarios when there is contention the HTC system will relinquish the computer { normally achieved through termi- nation or suspension. This often leads to longer turn-around times for the HTC jobs and an increase in energy consump- tion when the work is restarted elsewhere. However, within large organisations this distinction of who is the owner of a computer and who should take priority is not always clear. If a user enters a large cluster room (of identical computers) should they be allowed to use a computer which is servicing a HTC job when other computers are idle? Should HTC jobs be able to delay the rebooting of computers thus allow- ing the jobs to complete? In this work we relax some of the common computer management policies used in large organ- isations. We evaluate if alternative policies which may have impact on the primary users of the computers could save enough energy to make this impact tolerable. We evaluate our approach through the use of the HTC-Sim simulation framework. We demonstrate a potential energy saving of 12.4%, along with overhead reductions of 20-74%, and up to 48% reduction in job terminations by re-directing only 13% of users away from computers servicing HTC jobs.
Citation
Forshaw, M., & McGough, A. S. (2015). Flipping the priority: effects of prioritising HTC jobs on energy consumption in a multi-use cluster. In Proceedings of the 8th International Conference on Simulation Tools and Techniques, SIMUTools '15, August 26-28, Athens, Greece (357-364). https://doi.org/10.4108/eai.24-8-2015.2261101
Conference Name | 1st Workshop on Energy-aware Simulation ENERGY-SIM |
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Conference Location | Athens, Greece |
Start Date | Aug 24, 2015 |
End Date | Aug 26, 2015 |
Publication Date | Aug 26, 2015 |
Deposit Date | Nov 18, 2015 |
Publicly Available Date | Nov 30, 2015 |
Pages | 357-364 |
Book Title | Proceedings of the 8th International Conference on Simulation Tools and Techniques, SIMUTools '15, August 26-28, Athens, Greece. |
DOI | https://doi.org/10.4108/eai.24-8-2015.2261101 |
Keywords | Simulation, Energy, HTC, Volunteer Computing, Optimisation. |
Additional Information | Conference date: 24-26th August 2015 |
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