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This paper optimizes the scheduling and routing of the co-flows of MapReduce shuffling phase in state-of-the-art and proposed Passive Optical Networking (PON)-based Data Centre Network (DCN) architectures. A time-slotted Mixed Integer…

Networking and Internet Architecture · Computer Science 2020-08-11 Sanaa Hamid Mohamed , Ali Hammadi , Taisir E. H. El-Gorashi , Jaafar Mohamed Hashim Elmirghani

In this poster, we quantitatively measure the impacts of data movement on performance in MapReduce-based applications when executed on HPC systems. We leverage the PAPI 'powercap' component to identify ideal conditions for execution of our…

Distributed, Parallel, and Cluster Computing · Computer Science 2019-03-29 Joshua Hoke Davis , Tao Gao , Sunita Chandresekaran , Michela Taufer

In this paper, we utilize Mixed Integer Linear Programming (MILP) models to compare the energy efficiency and performance of a server-centric Passive Optical Networks (PON)-based data centers design with different data centers networking…

Networking and Internet Architecture · Computer Science 2018-08-21 Sanaa Hamid Mohamed , Taisir E. H. El-Gorashi , Jaafar M. H. Elmirghani

We investigate simplified models of computer data networks and examine how the introduction of additional random links influences the performance of these net works. In general, the impact of additional random links on the performance of…

adap-org · Physics 2023-12-18 Henryk Fuks , Anna T. Lawniczak

This paper studies the resilience of an AWGR and server based PON DCN architecture against link failure scenarios and proposes a modified design for improved resilience. A MILP model is developed to evaluate the performance of the modified…

Networking and Internet Architecture · Computer Science 2020-04-13 Randa A. Thabit , Taisir E. H. El-Gorashi , Jaafar M. H. Elmirghani

Existing models of Multi-Hop Wireless Networks (MHWNs) assume that interference estimators of link quality such as observed busy time predict the capacity of the links. We show that these estimators do not capture the intricate interactions…

Networking and Internet Architecture · Computer Science 2007-05-23 Vinay Kolar , Nael Abu-Ghazaleh

This paper evaluates the optimal scale of datacentre (DC) resource disaggregation for composable DC infrastructures and investigates the impact of present day silicon photonics technologies on the energy efficiency of different composable…

Networking and Internet Architecture · Computer Science 2018-08-21 Opeyemi O. Ajibola , Taisir E. H. El-Gorashi , Jaafar M. H. Elmirghani

A Multi-hop Control Network (MCN) consists of a plant where the communication between sensors, actuators and computational unit is supported by a wireless multi-hop communication network, and data flow is performed using scheduling and…

Optimization and Control · Mathematics 2016-11-18 Alessandro D'Innocenzo , Maria Domenica Di Benedetto , Emmanuele Serra

In real-world applications, we can encounter situations when a well-trained model has to be used to predict from a damaged dataset. The damage caused by missing or corrupted values can be either on the level of individual instances or on…

Machine Learning · Computer Science 2019-11-12 Magda Friedjungová , Daniel Vašata , Marcel Jiřina

A disaster may not necessarily demolish the telecommunications infrastructure, but instead it might affect the national grid and cause blackouts, consequently disrupting the network operation unless there is an alternative power source(s).…

Networking and Internet Architecture · Computer Science 2020-07-24 Zaid H. Nasralla , Taisir E. H. Elgorashi , Jaafar M. H. Elmirghani

The routing algorithms for parallel computers, on-chip networks, multi-core processors, and multiprocessors system-on-chip (MP-SoCs) exhibit router failures must be able to handle interconnect router failures that render a symmetrical mesh…

Distributed, Parallel, and Cluster Computing · Computer Science 2013-01-28 Farshad Safaei , Majed ValadBeigi

With the recent progress of information technology, the use of networked information systems has rapidly expanded. Electronic commerce and electronic payments between banks and companies, and online shopping and social networking services…

Distributed, Parallel, and Cluster Computing · Computer Science 2021-09-02 Koichi Bando , Kenji Tanaka

Multi-layer complex networks (MLCN) appears in various domains, such as, transportation, supply chains, etc. Failures in MLCN can lead to major disruptions in systems. Several research have focussed on different kinds of failures, such as,…

Social and Information Networks · Computer Science 2022-12-06 Dibakar Das , Jyotsna Bapat , Debabrata Das

This study introduces a mixed-integer linear programming (MILP) model, effectively co-optimizing patrolling, damage assessment, fault isolation, repair, and load re-energization processes. The model is designed to solve a vital operational…

Systems and Control · Electrical Eng. & Systems 2024-01-12 Ali Jalilian , Babak Taheri , Daniel K. Molzahn

In this work we examine how the updates addressing Meltdown and Spectre vulnerabilities impact the performance of HPC applications. To study this we use the application kernel module of XDMoD to test the performance before and after the…

Dynamic Link Prediction (DLP) addresses the prediction of future links in evolving networks. However, accurately portraying the performance of DLP algorithms poses challenges that might impede progress in the field. Importantly, common…

Social and Information Networks · Computer Science 2024-05-28 Raphaël Romero , Maarten Buyl , Tijl De Bie , Jefrey Lijffijt

Mixed Integer Linear Programs (MILPs) are essential tools for solving planning and scheduling problems across critical industries such as construction, manufacturing, and logistics. However, their widespread adoption is limited by long…

Machine Learning · Computer Science 2025-06-10 Xiaoke Wang , Batuhan Altundas , Zhaoxin Li , Aaron Zhao , Matthew Gombolay

Now a days, Internet plays a major role in our day to day activities e.g., for online transactions, online shopping, and other network related applications. Internet suffers from slow convergence of routing protocols after a network failure…

Networking and Internet Architecture · Computer Science 2012-12-04 T. Anji Kumar , M. H. M. Krishna Prasad

A linear interference network is considered. Long-term fluctuations (shadow fading) in the wireless channel can lead to any link being erased with probability p. Each receiver is interested in one unique message that can be available at M…

Information Theory · Computer Science 2013-12-19 Aly El Gamal , Venugopal V. Veeravalli

Massive MIMO is seen as a main enabler for low latency communications, thanks to its high spatial degrees of freedom. The channel hardening and favorable propagation properties of Massive MIMO are particularly important for multiplexing…

Information Theory · Computer Science 2020-07-10 Alexandru-Sabin Bana , Luca Sanguinetti , Elisabeth De Carvalho , Petar Popovski
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