CFD Parameter Optimization for Air-Conditioning Guidance System using Small Room Experimental Model

Zhao, Yihan; Kojima, Kazuyuki; Huo, Yuanzhi; Funabiki, Nobuo

doi:10.1109/lifetech53646.2022.9754852

Cited by 1 publication

(1 citation statement)

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“…Furthermore, the optimal parameter selection is critical for the high accuracy of the results, and it needs a lot of iterations of selecting parameters in OpenFOAM and running it with the parameter values. We applied the parameter optimization method for OpenFOAM [20]; it needs to run OpenFOAM with a lot of different parameters.…”

Section: Openfoammentioning

confidence: 99%

A Static Assignment Algorithm of Uniform Jobs to Workers in a User-PC Computing System Using Simultaneous Linear Equations

et al. 2022

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Currently, the User-PC computingsystem (UPC) has been studied as a low-cost and high-performance distributed computing platform. It uses idling resources of personal computers (PCs) in a group.The job-worker assignment for minimizing makespan is critical to determine the performance of the UPC system.Some applications need to execute a lot of uniform jobs that use the identical program but with slightly different data, where they take the similar CPU time on a PC. Then, the total CPU time of a worker is almost linear to the number of assigned jobs. In this paper, we propose a static assignment algorithm of uniform jobs to workers in the UPC system, using simultaneous linear equations to find the lower bound on makespan, where every worker requires the same CPU time to complete the assigned jobs. For the evaluations of the proposal, we consider the uniform jobs in three applications. In OpenPose, the CNN-based keypoint estimation program runs with various images of human bodies. In OpenFOAM, the physics simulation program runs with various parameter sets. In code testing, two open-source programs run with various source codes from students for the Android programming learning assistance system (APLAS). Using the proposal, we assigned the jobs to six workers in the testbed UPC system and measured the CPU time. The results show that makespan was reduced by 10% on average, which confirms the effectiveness of the proposal.

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Section: Openfoammentioning

confidence: 99%