In this paper, we propose a simple practical scheme for many-to-many IP multicasting. The proposed scheme is based on the core based tree (CBT) protocol, and designed to enhance the CBT in the viewpoints of tree cost and trafic concentration. In the scheme, each group user is simply connected to the nearest core router in the network. Each core router forwards the source traffic to networks via...

Many-Task Computing (MTC) is a common scenario for multiple parallel systems, such as cluster, grids, cloud and supercomputers, but it is not so popular in shared memory parallel processors. In this sense and given the spectacular growth in performance and in number of cores integrated in many-core architectures, the study of MTC on such architectures is becoming more and more relevant. In this...

In distributed network applications such as multiparty teleconferencing, users often need to send the same message to several other users. To achieve such one-to-many or many-to-many communication eeciently in wide-area internetworks, it is imperative to support mul-ticast, i.e., concurrent sending of messages from one source to multiple receivers. The current IP architecture for multicast rout...

Introduction. The relentless progress of Moore’s Law has periodically inspired major innovations – both in hardware and software – at specific points in time to keep performance growth on pace with transistor density. Industry has reached another such point as it encounters intellectual and engineering challenges in the form of power dissipation, processor-memory performance gap, limits to inst...

Physikalische und technologische Grenzen bei der Erhöhung der Taktfrequenz von Prozessoren haben in den letzten Jahren die Entwicklung von Multiund Many-CoreArchitekturen forciert. Die Ausnutzung dieser Architekturen erfordert jedoch eine weitgehende Parallelisierung von Berechnungen. Für den Datenbankbereich bedeutet dies einerseits ein Überdenken etablierter Datenstrukturen und Verfahren, erö...