skip to main content
US FlagAn official website of the United States government
dot gov icon
Official websites use .gov
A .gov website belongs to an official government organization in the United States.
https lock icon
Secure .gov websites use HTTPS
A lock ( lock ) or https:// means you've safely connected to the .gov website. Share sensitive information only on official, secure websites.


Title: Democratizing digital design and manufacturing using high performance cloud computing: Performance evaluation and benchmarking
Award ID(s):
1650527
PAR ID:
10137118
Author(s) / Creator(s):
; ; ; ;
Date Published:
Journal Name:
Journal of Manufacturing Systems
Volume:
43
Issue:
P2
ISSN:
0278-6125
Page Range / eLocation ID:
316 to 326
Format(s):
Medium: X
Sponsoring Org:
National Science Foundation
More Like this
  1. The inequitable distribution of principal effectiveness raises concern among policymakers. Principal sorting likely contributes to wider achievement and opportunity gaps between low- and high-need schools. As a possible policy tool, policymakers proposed performance-based compensation systems (PBCS). Tennessee was one of the states that supported the implementation of PBCS. This study examined the relationship between PBCS and principal job performance in the state, using longitudinal administrative data, principal evaluation data, and unique PBCS data from 2012 to 2019. The study did not find consistently significant, positive relationships between PBCS and principal job performance. However, the relationships were generally more pronounced among high-need schools. The study concludes with detailed discussions about the results, the assumptions behind PBCS, limitations, and implications. 
    more » « less
  2. In the 1980s, high-performance computing (HPC) became another tool for research in the open (non-defense) science and engineering research communities. However, HPC came with a high price tag; the first Cray-2 machines, released in 1985, cost between $12 million and $17 million, according to the Computer History Museum, and were largely available only at government research labs or through national supercomputing centers. In the 1990s, with demand for HPC increasing due to vast datasets, more complex modeling, and the growing computational needs of scientific applications, researchers began experimenting with building HPC machines from clusters of servers running the Linux operating system. By the late 1990s, two approaches to Linux-based parallel computing had emerged: the personal computer cluster methodology that became known as Beowulf and the Roadrunner architecture aimed at a more cost-effective supercomputer. While Beowulf attracted attention because of its low cost and thereby greater accessibility, Roadrunner took a different approach. While still affordable compared to vector processors and other commercially available supercomputers, Roadrunner integrated its commodity components with specialized networking technology. Furthermore, these systems initially served different purposes. While Beowulf focused on providing affordable parallel workstations for individual researchers at NASA, Roadrunner set out to provide a multiuser system that could compete with the commercial supercomputers that dominated the market at the time. This paper analyzes the technical decisions, performance implications, and long-term influence of both approaches. Through this analysis, we can start to judge the impact of both Roadrunner and Beowulf on the development of Linux-based supercomputers. 
    more » « less