batch scheduling
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Author(s):  
Derek Phanekham ◽  
Troy Walker ◽  
Suku Nair ◽  
Mike Truty ◽  
Manasa Chalasani ◽  
...  

Omega ◽  
2021 ◽  
pp. 102567
Author(s):  
Jun Xu ◽  
Jun-Qiang Wang ◽  
Zhixin Liu
Keyword(s):  

Energies ◽  
2021 ◽  
Vol 14 (19) ◽  
pp. 6079
Author(s):  
Nailiang Li ◽  
Caihong Feng

Energy-saving scheduling is a well-known issue in the manufacturing system. The flexibility of the workshop increases the difficulty of scheduling. In the workshop schedule, considering the collaborative optimization of multi-level structure product production and energy consumption has certain practical significance. The process sequence of parts and components should be consistent with the assembly sequence. Additionally, the non-production energy consumption (NPEC) (such as the energy consumption of workpiece handling, equipment standby, and workpiece conversion) generated by the auxiliary machining operations, which make up the majority of the total energy consumption, should not be ignored. A sub-batch priority is set according to the upper and lower coupling relationship in the product structure. A bi-objective batch scheduling model that minimizes the total energy consumption and the total completion time is developed, and the multi-objective gray wolf optimizer (MOGWO) is employed as the solution to obtain the optimal schedule scheme. A case study is performed to demonstrate the potential possibilities concerning NPEC in regard to reducing the total energy consumption and to show the effectiveness of the algorithm. Compared with the traditional optimization model, the joint optimization of NPEC and PEC can reduce the energy consumption of standby and handling by 9.95% and 22.28%, respectively.


2021 ◽  
Vol 170 ◽  
pp. 112420
Author(s):  
Suh-Young Lee ◽  
Jae-Uk Lee ◽  
Min Ho Chang ◽  
Jin-Kuk Ha ◽  
In-Beum Lee ◽  
...  

2021 ◽  
Vol 5 (1) ◽  
Author(s):  
J. Reppin ◽  
C. Beyer ◽  
T. Hartmann ◽  
F. Schluenzen ◽  
M. Flemming ◽  
...  

AbstractBatch scheduling systems are usually designed to maximise fair resource utilisation and efficiency, but are less well designed for demanding interactive processing, which requires fast access to resources while low upstart latency is only of secondary significance for high throughput of high performance computing scheduling systems. The computing clusters at DESY are intended as batch systems for end users to run massive analysis and simulation jobs enabling fast turnaround systems, in particular when processing is expected to feed back to operation of instruments in near real-time. The continuously increasing popularity of Jupyter Notebooks for interactive and online processing made an integration of this technology into the DESY batch systems indispensable. We present here our approach to utilise the HTCondor and SLURM backends to integrate Jupyter Notebook servers and the techniques involved to provide fast access. The chosen approach offers a smooth user experience allowing users to customize resource allocation tailored to their computational requirements. In addition, we outline the differences between the HPC and the HTC implementations and give an overview of the experience of running Jupyter Notebook services.


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