scholarly journals An Optimal Task-Scheduling Strategy for Large-Scale Astronomical Workloads using In-transit Computation Model

2018 ◽  
Vol 11 (1) ◽  
pp. 600 ◽  
Author(s):  
Xiaoli Wang ◽  
Bharadwaj Veeravalli ◽  
Omer F. Rana
2021 ◽  
Vol 2132 (1) ◽  
pp. 012002
Author(s):  
Leilei Zhu ◽  
Ke Zhao ◽  
Huaze Lin ◽  
Dan Liu ◽  
Li Li

Abstract With the development of the Internet of Things and 5G. Edge cloud technology has gradually become a research hotspot. When facing the massive and concurrent tasks of terminal users, reasonable resource scheduling strategy is a key technology. Because edge cloud needs to respond quickly to real-time tasks and ensure the stability of nodes at the same time, the optimal task scheduling strategy needs to be selected to meet the low latency requirements of edge users. In view of the above problems in resource allocation of edge cloud, this paper established a layered excellent gene replication strategy (HEGPSO model), in which the optimal replicator is added, and an evolutionary particle swarm optimization algorithm is proposed. In each iteration, the population is divided into three layers based on individual fitness. After that, the optimal replication factor is added to each layer of individuals to enhance the global search ability of the algorithm and ensure the good convergence of the algorithm. Finally, a balanced resource allocation model is established. Experiments show that the HEGPSO model proposed in this paper has high fitness and fast convergence speed, and is suitable for large-scale task access scenarios.


IEEE Access ◽  
2021 ◽  
Vol 9 ◽  
pp. 47354-47364
Author(s):  
Salvatore Giampa ◽  
Loris Belcastro ◽  
Fabrizio Marozzo ◽  
Domenico Talia ◽  
Paolo Trunfio

Algorithms ◽  
2021 ◽  
Vol 14 (5) ◽  
pp. 154
Author(s):  
Marcus Walldén ◽  
Masao Okita ◽  
Fumihiko Ino ◽  
Dimitris Drikakis ◽  
Ioannis Kokkinakis

Increasing processing capabilities and input/output constraints of supercomputers have increased the use of co-processing approaches, i.e., visualizing and analyzing data sets of simulations on the fly. We present a method that evaluates the importance of different regions of simulation data and a data-driven approach that uses the proposed method to accelerate in-transit co-processing of large-scale simulations. We use the importance metrics to simultaneously employ multiple compression methods on different data regions to accelerate the in-transit co-processing. Our approach strives to adaptively compress data on the fly and uses load balancing to counteract memory imbalances. We demonstrate the method’s efficiency through a fluid mechanics application, a Richtmyer–Meshkov instability simulation, showing how to accelerate the in-transit co-processing of simulations. The results show that the proposed method expeditiously can identify regions of interest, even when using multiple metrics. Our approach achieved a speedup of 1.29× in a lossless scenario. The data decompression time was sped up by 2× compared to using a single compression method uniformly.


2021 ◽  
Vol 30 ◽  
pp. 100513
Author(s):  
Dhritiman Mukherjee ◽  
Sudarshan Nandy ◽  
Senthilkumar Mohan ◽  
Yasser D. Al-Otaibi ◽  
Waleed S. Alnumay

Author(s):  
Ismail Zahraddeen Yakubu ◽  
Muhammad Aliyu ◽  
Zainab Aliyu Musa ◽  
Zakari Idris Matinja ◽  
I. M. Adamu

IEEE Access ◽  
2017 ◽  
Vol 5 ◽  
pp. 5609-5622 ◽  
Author(s):  
Li Tianze ◽  
Wu Muqing ◽  
Zhao Min ◽  
Liao Wenxing

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