Volunteer computing (VC) is a type of network computing which exploits idle computing resources provided by vast amount of users on the Internet. In our previous work, we have implemented a prototype system of paralle...
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ISBN:
(纸本)9798350386851;9798350386844
Volunteer computing (VC) is a type of network computing which exploits idle computing resources provided by vast amount of users on the Internet. In our previous work, we have implemented a prototype system of parallel VC with the approach of server assisted communication and demonstrated the feasibility of parallelcomputing on a VC environment, not distributedcomputing as in the current VC. In this paper, we evaluate the effectiveness of parallel VC. The nature of nodes' volatility and unreliability in VC makes parallelcomputing not always effective. Through the simulations using open trace data of nodes' behavior, we reveal parallelism and redundancy of job execution which minimize execution time while maintaining high degree of reliability.
The ongoing energy transition is driving the transformation of the traditional centralized electric system into a decentralized one, integrating distributed energy resources (DERs) along the grid. This paper presents ...
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ISBN:
(纸本)9798350381757;9798350381740
The ongoing energy transition is driving the transformation of the traditional centralized electric system into a decentralized one, integrating distributed energy resources (DERs) along the grid. This paper presents a digital hierarchical Energy Management System (EMS) for integrating distributed energy storage systems in these decentralized Smart grids. This EMS is deployed in an Edge-Cloud architecture and has been validated in a test bench for a self-consumption case study. The proposed work obtained a self-consumption level of 100% and significant increases in self-sufficiency levels and electricity bill savings. The hierarchical and digitalized control of a DER has been successfully validated, allowing the optimal integration of DERs and fostering their participation in grid services. The aggregation of these DERs can provide the increasing distribution grid flexibility requirements, thanks to the scalability and interoperability characteristics of the presented architecture, opening the participation into new flexibility energy markets and the path to a more resilient and reliable grid.
The pioneering research on message passing for Java (MPJ) which started after 1995 provided a crucially important framework and programming environment for parallel and distributedcomputing with Java. This framework ...
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ISBN:
(纸本)9798350340754
The pioneering research on message passing for Java (MPJ) which started after 1995 provided a crucially important framework and programming environment for parallel and distributedcomputing with Java. This framework resulted in an industry standard specification and a novel MPJ-based hierarchical development methodology for a new generation of large-scale distributed systems. The invention of a novel component-based model and methodology for rapid distributed software development and execution based on the MPJ work and achievements are the core contributions presented in this paper. Based on the high-performance Java component-based model, concepts and research results, grid, cloud, and extreme-scale computing represent a fundamental shift in the delivery of information technology services that has permanently changed the computing landscape.
This project intends to use the recently developed OpenMP parallelcomputing method to integrate the minimum-maximum reclassification method with the factor table path tree method. Then the different types of images a...
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We study the Traveling Salesman Problem (TSP) in the Congested Clique Model (CCM) of distributedcomputing. We present a deterministic distributed algorithm that computes a tour for the TSP using O(1) rounds and O(m) ...
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ISBN:
(纸本)9798350369458;9798350369441
We study the Traveling Salesman Problem (TSP) in the Congested Clique Model (CCM) of distributedcomputing. We present a deterministic distributed algorithm that computes a tour for the TSP using O(1) rounds and O(m) messages for a given undirected weighted complete graph of n nodes and m edges with an approximation factor 2 of the optimal. The TSP has wide applications in logistics, planning, manufacturing and testing microchips, DNA sequencing etc., and we claim that our proposed O(1)-rounds approximation algorithm to the TSP, which is fast and efficient, can also be used to minimize the energy consumption in Wireless Sensor Networks.
In this paper, we present parallelo parallel Library (PPL), a novel Rust library for structured parallel programming. Rust's fearless concurrency concept makes it a promising language for parallel application deve...
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ISBN:
(纸本)9798350363074;9798350363081
In this paper, we present parallelo parallel Library (PPL), a novel Rust library for structured parallel programming. Rust's fearless concurrency concept makes it a promising language for parallel application development. We present the development progress of parallelo parallel Library (PPL) and report preliminary performance results, comparing it to existing popular Rust libraries. Our results show that PPL provides robust support for parallel programming through high-level abstractions, delivering performance that matches or exceeds current state-of-the-art in the Rust ecosystem.
In this research paper, we explore the essential role of High Performance computing (HPC) in the current technological era, highlighting its extensive use in various sectors, while also considering growing alarm over ...
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ISBN:
(纸本)9798350363074;9798350363081
In this research paper, we explore the essential role of High Performance computing (HPC) in the current technological era, highlighting its extensive use in various sectors, while also considering growing alarm over its environmental footprint. High performance computing systems are essential for managing large data sets and solving complex challenges. However, their significant contribution to escalating energy consumption and carbon emissions in the information and communication technology (ICT) sector cannot be ignored. Our study identifies the increasing energy demands and environmental challenges associated with HPC activities, including resource use, electrical waste and greenhouse gas emissions. It highlights the importance of understanding these environmental impacts in detail. It also contributes to the ongoing dialogue on sustainable computing, promoting a harmonious future where technological progress and environmental sustainability can coexist in unison.
This article introduces the development and simulation service mode of China's power system, and explores the feasibility and necessity of parallel simulation application of electromagnetic transient. The construc...
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This paper introduces CM-RETS, a 4-Level address Communication Model designed specifically for real-time simulation of electromagnetic transients in power systems. CM-RETS incorporates a unique 4-Level address scheme ...
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ISBN:
(纸本)9798350381993;9798350382006
This paper introduces CM-RETS, a 4-Level address Communication Model designed specifically for real-time simulation of electromagnetic transients in power systems. CM-RETS incorporates a unique 4-Level address scheme and leverages Remote Direct Memory Access (RDMA) technology to enable efficient and reliable data exchanges between computing nodes in a distributed system. By effectively distributing computational load, CM-RETS facilitates faster and more realistic simulations, ensuring precise and timely data exchanges within a 5 mu s time step to capture transients in real time. Experimental results validate the effectiveness and efficiency of CM-RETS in achieving accurate and real-time simulations of electromagnetic transients. With its robust and cost-effective solution, CM-RETS provides researchers and engineers with the means to perform detailed analysis and studies on power systems under various transient conditions.
This paper presents the performance analysis and the most significant design decisions taken to improve the runtime performance of a quality-diversity volume rendering framework, focusing on using parallel and distrib...
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ISBN:
(纸本)9798350364309;9798350364293
This paper presents the performance analysis and the most significant design decisions taken to improve the runtime performance of a quality-diversity volume rendering framework, focusing on using parallel and distributedcomputing to optimize specific stages within the framework pipeline. After considering the benefits and trade-offs of several aspects like minimization of execution time, portability and hardware independence, we developed a hybrid CPU-GPU parallelcomputing model that increased the overall efficiency. Using this model, we achieved significant improvement in runtime speed for critical components of the framework compared to the sequential implementation. Additionally, this model can be applied in a wide range of scenarios, where the performance improvements provided by GPU processing can be complemented by CPU parallelization, with better runtime results.
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