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In high-speed networks, it is important to detect the presence of large flows—also known as elephant flows—because of their adverse effects on delay-sensitive flows. If detected on a timely fashion, network operators can apply active policies such as flow redirection or traffic shaping to ensure the overall quality of service of the network is preserved. Towards this objective, we develop a high-performance...
Current cloud users pay for statically configured VM sizes irrespective of usage. It is more favorable for users to consume (and be billed for) just the right amount of resources necessary to satisfy the performance requirement of their applications. We take a novel perspective to enable such resource usage, where we assume that the cloud operator exposes a small, dynamic fraction of its infrastructure,...
Database-as-a-service providers typically use replication to meet the performance and availability guarantees demanded by their customers. A crucial problem in this context is that of placing the replicas on machines in such a way as to meet these guarantees while optimally utilizing the available resources, despite having incomplete or erroneous a priori knowledge of the workload characteristics...
Recently, many parallel solutions were proposed in order to accelerate the exact methods for optimal alignment of DNA sequences. However, most of these solutions calculate only the alignment similarity score without finding the actual alignment. This paper presents an efficient solution to find the optimal alignment of the huge DNA sequences. This solution releases the condition of the sequence size...
Large collections of robots have the potential to perform tasks collectively using distributed control algorithms. These algorithms require communication between robots to allow the robots to coordinate their behavior and act as a collective. In this paper we describe two algorithms which allow coordination between robots, but do not require physical environment marks such as pheromones. Instead,...
The role of Field-Programmable Gate Arrays (FPGAs) in System-on-Chip (SoC) design considerably increased in the last few years. Their established importance is due to the large amount of hardware resources they offer, as well as to their increasing performance, and furthermore to the support for reconfigurability. Even though FPGAs seem to have reached their maturity, there is still a lack of Computer-Aided...
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