Performance evaluation of I/O traffic and placement of I/O nodes on a high performance network

2002 ◽  
Author(s):  
S. Coll ◽  
F. Petrini ◽  
E. Frachtenberg ◽  
A. Hoisie
Keyword(s):  
Performance Evaluation ◽  
High Performance

scholarly journals High-Performance Workwear for Coal Miners in Northern China: Design and Performance Evaluation

2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Ying Ke ◽  
Qing Zheng ◽  
Faming Wang ◽  
Min Wang ◽  
Yi Wang
Keyword(s):  
Performance Evaluation ◽  
Thermal Comfort ◽  
High Performance ◽  
Northern China ◽  
Coal Miners ◽  
Climate Chamber ◽  
Local Skin ◽  
Worker Performance ◽  
And Performance ◽  
Skin Temperatures

Abstract The design of workwear has significant effects on worker performance. However, the current workwear for coal miners in Northern China is poor in fitness and thermal comfort. In this study, new workwear (NEW) for coal miners was developed with the design features providing better cold protection and movement comfort performance, as compared with a commonly worn workwear (CON). To evaluate the effectiveness of NEW, we conducted human trials which were performed using simulated work movements (i.e., sitting, shoveling, squatting, and crawling) in a climate chamber (10°C, 75% RH). Physiological measurements and perceptual responses were obtained. The results demonstrated that the local skin temperatures at chest, scapula, thigh, and calf; mean skin temperatures,; and thermal comfort in NEW were significantly higher than those in CON. NEW also exerted an improvement in enhancing movement comfort. We conclude that NEW could meet well with the cold protective and mobility requirements.

Communication Performance Evaluation of the Locally Twisted Cube

2020 ◽  
Vol 31 (02) ◽  
pp. 233-252
Author(s):  
Yuejuan Han ◽  
Lantao You ◽  
Cheng-Kuan Lin ◽  
Jianxi Fan
Keyword(s):  
Performance Evaluation ◽  
Interconnection Networks ◽  
High Performance ◽  
Communication Performance ◽  
Wide Diameter ◽  
Fault Diameter ◽  
Twisted Cube ◽  
Hypercube Network ◽  
High Performance Computers ◽  
Important Variant

The topology properties of multi-processors interconnection networks are important to the performance of high performance computers. The hypercube network [Formula: see text] has been proved to be one of the most popular interconnection networks. The [Formula: see text]-dimensional locally twisted cube [Formula: see text] is an important variant of [Formula: see text]. Fault diameter and wide diameter are two communication performance evaluation parameters of a network. Let [Formula: see text]), [Formula: see text] and [Formula: see text] denote the diameter, the [Formula: see text] fault diameter and the wide diameter of [Formula: see text], respectively. In this paper, we prove that [Formula: see text] if [Formula: see text] is an odd integer with [Formula: see text], [Formula: see text] if [Formula: see text] is an even integer with [Formula: see text].

Performance evaluation of Amazon Elastic Compute Cloud for NASA high-performance computing applications

2013 ◽  
Vol 28 (4) ◽  
pp. 1041-1055 ◽  
Author(s):  
Piyush Mehrotra ◽  
Jahed Djomehri ◽  
Steve Heistand ◽  
Robert Hood ◽  
Haoqiang Jin ◽  
...  
Keyword(s):  
Performance Evaluation ◽  
High Performance Computing ◽  
High Performance ◽  
Performance Computing
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