Performance-critical components of virtual machines are often implemented in assembly language. Traditionally, this code is compiled with an assembler and linked statically with the rest of the system. Generating this code at startup time has significant engineering advantages over the conventional approach: The generated machine code is much safer, easier to maintain, and has better performanc...

The fact that systems fail should come as no surprise to anymore who has ever developed or worked on a system. A failure reduces the availability of the system and hence the productivity of entities using this system. To increase system availability, several approaches have been developed; these approaches range from simple techniques such as restarting the entire system, to complex algorithms ...

Lateral nozzle forces are known to cause severe structural damage to any new rocket engine in development during test. While three-dimensional, transient, turbulent, chemically reacting computational fluid dynamics methodology has been demonstrated to capture major side load physics with rigid nozzles, hot-fire tests often show nozzle structure deformation during major side load events, leading...

It won’t be like working for a large, established company. Things moving at a lightning 1. pace in a start-up, so buckle-up. Mistakes count a lot more. The enemy of all young companies is time. You have nothing 2. to sell when you delay those first product launches, so it heightens the importance of first-time success. Don’t expect to go home until you meet your commitments. This relates to num...

Modern architecture research relies heavily on detailed pipeline simulation. Simulating the full execution of an industry standard benchmark can take weeks to months. Statistical sampling and sample techniques like SimPoint that pick small sets of execution samples have been shown to provide accurate results while significantly reducing simulation time. The inefficiencies in sampling are (a) ne...

CMS experiment has used detector simulation software in its conceptual as well as technical design. With the detector construction near its completion, the role of simulation has changed toward understanding collision data to be collected by CMS in near future. CMS simulation software is becoming a data driven, realistic and accurate Monte Carlo programme. The software architecture is described...

Influenced by decreasing product development times, early production startups, increasing ranges of variants and heightened process orientation, systematically interconnecting the development of products with the development of production systems to form an integrated unified process is becoming a priority in manufacturing companies. This constitutes a significant basis for realizing time and c...

Peer-to-peer has evolved into a promising communication paradigm for large-scale content sharing. It has recently been suggested for on-demand video streaming as well. Such peer-to-peer Video-onDemand (VoD) makes effective use of local disk space and upload bandwidth distributed across peers to relieve the server load, which has long been a bottleneck of conventional VoD systems that demand eno...