High Performance Computing (HPC) is a term that has emerged in today's world to replace the yesteryears' custom of supercomputer. In the previous years, supercomputer is a term that generated thoughts of extremely complicated machines that were solving problems that humans could not really understand. Since supercomputers permitted entry of at least seven figures, they were commonly used by engineers and scientists who needed to deal with such figures rapidly. However, this concept has paved way for the emergence of commodity-based supercomputing that is commonly known as High Performance Computing. The main focus of High Performance Computing (HPC) is the ability to process huge amounts of data in short periods of time. High Performance Computing (HPC) is associated with various technologies with varying software and hardware requirements for administrative and operational tasks needed to process data securely.
The Concept of High Performance Computing
Eadline (2009), states that high performance computing is a term that emerged in today's world as a substitute of the custom supercomputer of the yesteryears, which was commonly used by engineers and scientists who needed huge figures as fast as possible (p.3). High performance computing is a commodity-based supercomputing, which is now open to nearly every individual given the all-time low cost of entry. High performance computing is currently regarded as a fundamental part of business to various organizations. Organizations prefer using HPC because it is considered a competitive advantage over business rivals. This concept is preferable by many organizations because it is a secret weapon that enables businesses to become profitable, competitive, and green. It enables users to quickly replicate and then manipulate processes or a product to see the effect of several decisions before they are reached.
Technology Involved in HPC
As previously mentioned, high performance computing is associated with various technologies given its focus on the ability to process huge amounts data within short periods of time. In addition to the various technologies, HPC has several software and hardware requirements for administrative and operational functions that are crucial for secure data processing. Generally, HPC includes computers, algorithms, networks, and platforms that enable them to focus on processing huge amount of data within short durations of time. The technologies involved in this concept range from small group of personal computers to fastest supercomputers. The hardware and software architecture of these computers largely determine the possibilities and impossibilities of speeding up the systems beyond the performance of a single Central Processing Unit (CPU) core (Dongarra & van der Steen, 2012, p.2). One of the important factors in the hardware structure is consideration of the ability of compilers to create efficient code to be utilized on the specific hardware structure or platform.
Software
Software architecture is an important aspect of high performance computing to an extent that it has developed as vital discipline for software engineers (Zhang et. al., 2005, p.409). Software architecture is more important than the selection of data structure and algorithms because of the increase in the size and complexity of software system. However, the process of programming applications for HPC is extremely complex and difficult given the lack of effective software tools. Since HPC involves parallel computers, the software structures of these computers differ widely. Software architectures in High Performance Computing range from distributed and parallel structures to networks of workstations (Appelbe & Bergmark, 1996, p.2).
Since the beginning of the 21st Century, operating systems in high performance computing have experienced considerable changes because of the changes in the architecture of supercomputers. As a result, HPC currently adapts generic software like Linux rather than custom tailored operating systems to each computer. The adaptation has been brought by the shift from in-house operating systems since high performance computing distinguishes various computations from other services through the use of numerous kinds of nodes. The supercomputers utilized in HPC always operate varying operating systems on varying nodes. For instance, small systems utilize lightweight kernel on nodes whereas larger systems employ input/output nodes. Linux is the most preferred operating system for HPC though every manufacturer has his/her unique derivative of the operating system due to lack of industry standard (Padua, 2011, p.429).
Queue Management in this type of computing is relatively different from the conventional multi-user computer system. This process in HPC involves controlling the distribution of communication and computational resources. It also incorporates dealing with the anticipated hardware failures because of the existence of numerous processors. Due to the need to exploit speed, software applications in HPC utilize special programming techniques ranging from distributed processing and open-based solutions. As a result, these software applications require the use of...
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