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Checkpointing Orchestration: Toward a Scalable HPC Fault-Tolerant Environment

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4 Author(s)
Hui Jin ; Illinois Inst. of Technol., Chicago, IL, USA ; Tao Ke ; Yong Chen ; Xian-He Sun

Check pointing is widely used in technical computing. However, the overhead of check pointing is a subject of increasing in concern in recent years, especially for large-scale parallel computer systems. In these systems, check pointing generates a huge number of concurrent I/O writes. The burst of writes plus the worsening I/O-wall problem often leads to network and I/O congestion, and makes the overall system performance painfully slow. Recognizing contention as a dominant performance factor, in this paper we propose a systematic approach named check pointing orchestration to reduce write contention, which combines the marshaling of concurrent checkpoint requests and the adopting of vertical data access in coordination. A prototype of the proposed check pointing orchestration approach has been implemented at the system-level under Open MPI over the PVFS2 file system. Extensive experiments based on NPB benchmarks have been conducted to verify the design and implementation. Experimental results show that check pointing orchestration reduced the check pointing cost at a degree of more than 30%. Check pointing cost was halved for 4 out of 5 the C class NPB benchmarks.

Published in:

Cluster, Cloud and Grid Computing (CCGrid), 2012 12th IEEE/ACM International Symposium on

Date of Conference:

13-16 May 2012