Supporting malleability in parallel architectures with dynamic CPUSETs mapping and dynamic MPI
ICDCN'10 Proceedings of the 11th international conference on Distributed computing and networking
Elastic Scalable Cloud Computing Using Application-Level Migration
UCC '12 Proceedings of the 2012 IEEE/ACM Fifth International Conference on Utility and Cloud Computing
Optimizing Long-Lived CloudNets with Migrations
UCC '12 Proceedings of the 2012 IEEE/ACM Fifth International Conference on Utility and Cloud Computing
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Malleability enables a parallel application's execution system to split or merge processes modifying granularity. While process migration is widely used to adapt applications to dynamic execution environments, it is limited by the granularity of the application's processes. Malleability empowers process migration by allowing the application's processes to expand or shrink following the availability of resources. We have implemented malleability as an extension to the process checkpointing and migration (PCM) library, a user-level library for iterative message passing interface (MPI) applications. PCM is integrated with the Internet Operating System, a framework for middleware-driven dynamic application reconfiguration. Our approach requires minimal code modifications and enables transparent middleware-triggered reconfiguration. Experimental results using a two-dimensional data parallel program that has a regular communication structure demonstrate the usefulness of malleability. Copyright © 2008 John Wiley & Sons, Ltd.