The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
The increasing numbers of cores, shared caches and memory nodes within machines introduces a complex hardware topology. High-performance computing applications now have to carefully adapt their placement and behavior according to the underlying hierarchy of hardware resources and their software affinities. We introduce the Hardware Locality (hwloc) software which gathers hardware information about...
In the last years high performance processor designs have evolved toward Chip-Multiprocessor (CMP) architectures that implement multiple processing cores on a single die. As the number of cores inside a CMP increases, the on-chip interconnection network will have significant impact on both overall performance and power consumption as previous studies have shown. On the other hand, CMP designs are...
For a high-performance parallel implementation of many scientific algorithms, efficient realizations of combining communication patterns like reduce or all-reduce are important. Especially on the Cell Broadband Engine a low latency realization of such operations is not obvious. So in this paper several algorithms for implementing reductions are discussed and efficient implementations on the Cell are...
Emerging multimedia applications over mobile devices are becoming very popular, especially over infrastructure wireless networks such as cellular and WLANs. However, providing this kind of services over infrastructure-less networks like ad hoc networks presents many additional problems. One of these problems is how to share resources fairly among the users involved. In this article we propose a QoS...
New service providers, completely separated from the Internet Service Providers (ISP), are growing today in the Internet scenario to create new multimedia services through the P2P approach. These providers are manifesting great interest not only for classical multimedia applications, like video streaming and video on demand, but also for other applications, like for example video-conferencing, multi-party...
In this paper, we consider the problem of the online allocation of a very large number of identical tasks on a master-slave platform. Initially, several masters hold or generate tasks that are transfered and processed by slave nodes. The goal is to maximize the overall throughput achieved using this platform, i. e., the (fractional) number of tasks that can be processed within one time unit. We model...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.