Cluster computing

Concurrency loss due to IO path critical sections (IPCS) Time lost in waiting queue (WT) to enter a critical section affects an application concurrency (AC), and impedes the application performance from scaling (AC ∝ 1 / WT) if a workload is bursty and highly parallelized. It is apparent that the wait time to enter a critical section is a function of the CS’s size (CSS) and the number of waiting threads (NWT) i.e. WT ∝ CSS * NWT. Furthermore, the work done (IO completed) is proportional to the…

Given the technologies available, why have those in the public safety space largely failed to capitalize on the opportunities available? Investments have been made, with over half (56%) of public safety organizations stating they have had mobile solutions in place for longer than five years. However, the level of adoption varies largely, and many organizations pursue a reactive rather than proactive approach to mobility for a number of reasons. Perhaps most notably, the fragmented nature of the…

Multi - Colored Clouds Clouds often signify barriers that are obstructing people from seeing, what may literally be right before their eyes. They symbolize covers as they themselves cover the sky. Clouds also share symbolism with water and air, as those are the components that they are produced from, resulting in symbols of clear thinking and emotional purity. Anthony Doerr uses the motif of clouds and cloud imagery to convey pathetic fallacies in his characters’ conflicts throughout Memory…

Repairing your own roof is the only way to do it. Honestly, most roof repairs can be done yourself. With the help from the Internet, you too can easily repair a simple roof without having to rely on professional roofing contractors. Besides, calling a professional roofing company to fix a simple leaking roof could end up being quite costly. However, hiring a professional roofing contractor does have its advantages. For instance, do you think you will be able to handle the job if it turns out to…

The introduction of the Sarbane-Oxley Act and its modification after the 2007-2008 recessions has helped many businesses grow and remain sustainable; the Act encourages accountability, and disclosure of information to promote effective and correct decisions, which can steer organisation growth (Rikhardsson & Juhl-Christensen 2008). The collapse of Enron will forever be a remembered in the business world, since this case acts as lesson why it is essential to conduct business in a professional…

On Friday, April 15th, MobilePubs released a corporate announcement to reveal the operation expansion of their current territory of East Valley, Phoenix metropolitan area will now include the entire Phoenix metropolitan area. Ed Snider, the president of MobilePubs, has secured the services of TechCon to evaluate the effectiveness of the current fleet vehicles, and to recommend a fleet expansion plan to accommodate the extended delivery area, which will be increased by 300%. The purpose of this…

assignment 4, the student implements a distributed system with dozens of worker processes that share common data files and cooperate to compute edit-distances for pairs of strings provided by a Resource Manager. The worker processes are in charge of computing the edit-distance for a pair of strings; the resource manager process provides the pairs of strings one at a time and saves the output sent by the workers in the shared storage resource. To support an acceptable level of fault tolerance, a…

If you look around, you notice grids are used everywhere in day-to-day life. For example, the keyboard on your laptop, the pixelated squares on your TV screen, and the apps on your IPhone all consist of grids. In the article Grids, Rosalind Krauss discusses the significance of grids in artwork, specifically in modern art. Krauss describes grids as the “modernity of modern art” and examines the impact behind the grid’s centrifugal and centripetal existence. There are two ways in which Krauss…

At the end of the day, we are both talking about the same thing, but with very different expectations. I agree that we can move many systems to the cloud… What I am saying is that to do it right, it will take time (1-3 years); it is going to cost money (setup $5 to $20K+); and in the end, we will not have the level of customization we have today. Total TCO is probably going to be the same. Why? Because I am one of the most frugal IT pros in the market. I was able to find cost-effective systems…

Global Wholesale & Emerging Solutions Team, I wanted to take a moment to recognize our 2Q Accomplishments and Reiterate 3Q Priorities. In 2Q the team achieved its financial commitments and delivered on a number of key initiatives that continue to differentiate us from our competitors. We prove over and over again that we are a valued solutions enabler to our partners, growing their revenue, profitability and subscriber base. In 2Q we delivered $421.8M in Net Revenue; 108% of plan | $204.3M…