Scalable Performance Predictions of Distributed Peer-to-Peer Applications

Abstract : Recently, a new environment for high performance peer-to-peer distributed computing was proposed. This environment , named P2PDC, addresses stable or volatile systems communicating in a decentralized manner using the self-adaptive protocol P2PSAP. P2PDC is devoted to task parallel applications like numerical simulation problems or optimization problems solved via parallel or distributed iterative algorithms. For distributed applications meant to run with P2PDC, a performance prediction tool named dPerf was proposed. dPerf combines static and dynamic analysis with trace-based simulation to provide scientist with information about the execution of their large scale numerical simulation applications. dPerf addresses real parallel and distributed numerical simulation and optimisation applications written in C, C++ or Fortran for P2PDC. This paper introduces an enhancement of the dPerf tool which provides scalable performance prediction results. Scaling is done with respect to (i) network configuration and (ii) number of peers. Scaling predictions based on network configuration is achieved through trace-based simulation, where various architectures can be studied. Scaling predictions based on the number of peers implies analyzing the communication topology and modifying trace files prior to simulation. We present experimental results obtained for the obstacle problem, a C/P2PDC implementation of the code used in mechanics and finance. Prediction for this application is computed under real conditions, with a reduced slowdown and by providing user with scalable results.
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Bogdan Florin Cornea, Julien Bourgeois, Tung Nguyen, Didier El Baz. Scalable Performance Predictions of Distributed Peer-to-Peer Applications. 2012 IEEE 14th International Conference on High Performance Computing and Communications, Jun 2012, Liverpool, France. pp.193-201, ⟨10.1109/HPCC.2012.34⟩. ⟨hal-01152469⟩

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