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Dr. Abdullah Mohamed Ahmed Saad :: Publications:

Performance Modelling and Evaluation of SPECMPI on the Cloud
Authors: Abdallah Saad; Ahmed El-Mahdy; Hisham El-Shishiny
Year: 2015
Keywords: Cloud Computing; MPI; Parallel Computing
Journal: 3rd International IBM Cloud Academy Conference (ICACON 2015)
Volume: Not Available
Issue: Not Available
Pages: Not Available
Publisher: Not Available
Local/International: International
Paper Link: Not Available
Full paper Abdullah Mohamed Ahmed Saad_May_2015_Performance_Modelling_and_Evaluation_of_SPECMPI_on_the_Cloud.pdf
Supplementary materials Not Available

With the current trends towards utilising cloud computing, it becomes interesting to explore the utility of cloud computing in the area of high- performance computing. Such area significantly differs from other typical cloud applications in its intensive computation and communication demands. This contradicts with the underlying sharing concept of resources, exploited by cloud computing. In this paper, we present work-in-progress for evaluating the performance of the standard HPC SPECMPI benchmark on a private, dedicated, cloud system. We compare the virtualised performance with native execution, using the same underlying physical machines. Generally, the cloud environment relies on virtualisation to allow for consolidation of resources. This adds an overhead for emulating I/O operations, as well as increasing the sharing overheads on the processors. We construct a simple, yet efficient, analytical model that accounts for the virtualisation overheads, taking into consideration the application communication and computation patterns, and the underlying physical computing and communication infrastructure. The developed model is a queueing network model that accounts for the contention on physical processing cores and the communication interconnect, and predicts performance. This model has the advantage of defining a basic model providing an upper bound on performance of the SPECMPI on the cloud. Future work will consider modelling other co-existing cloud applications.

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