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Azure cloud offers Platform-as-a-Service (PaaS) to its customers. It uses Hyper-V hypervisor to manage instances of virtual machines. Several papers report superlinear speedup for execution of dense matrix-matrix multiplication algorithm comparing the parallel and sequential executions. The existence of a superlinear speedup is also confirmed in some cases of virtualized and cloud environments. In this paper we realized a series of experiments to find out if the superlinear speedup is also possible on the Azure cloud for executing the dense matrix-matrix multiplication algorithm using the same hardware infrastructure. In addition to the hypothesis about existence of a superlinear speedup we will theoretically explain the experimental results and determine the regions and particular matrix sizes where it may occur.


Marjan Gusev, and Sasko Ristov


Cloud Computing, High Performance Computing, Performance

Full Paper

The paper is published in 2012 IEEE 1st Int. Conference on Cloud Networking (CLOUDNET)