Video games represent a class of media applications for which creating video content is as important as displaying it. In this paper, we compare video games running on an Apple Macintosh G5 to DVD playback and the QuickTime media player. We use performance monitor counters to find the IPC, the L1 data cache miss rate and the AGP and processor memory bandwidth. We find the frame-oriented nature ...

Applications differ in their computational requirements. A single application too can have diverse requirements during its different phases. In this thesis, we present ReKonf, a dynamically reconfigurable tile based multicore architecture that detects the program phase change at runtime and morphs itself into different configurations to suit the program phase behavior. We use space and time eff...

This paper explores cache models for a simultaneous multithreaded processor with multimedia enhancements. We start with a wide-issue superscalar processor, enhance it by the simultaneous multithreading (SMT) technique, by multimedia units, and by an additional on-chip RAM storage. Our workload is a multithreaded MPEG-2 video decompression algorithm that extensively uses multimedia units. Variou...

In this work we study the interception of the requests performed by the mobile nodes in a wireless network. This interception can be achieved because a local cache is implemented in each wireless device. In that way, the nodes can serve the documents instead of forwarding the requests to the data servers. In our proposal, the interception is enhanced so it is also implemented when the mobile no...

As a future internet candidate, named Data Network (NDN) provides more efficient communication than TCP/IP network. Unlike TCP/IP, consumer requests in NDN are sent based on content, not the address. The previous study evaluated performance using simulator. In this research, we modeled system virtual nodes, making model relevant to real NDN. an essential component every router, content store (C...

In this work, we present libHetMP , an OpenMP runtime for automatically and transparently distributing parallel computation across heterogeneous nodes. targets platforms comprising CPUs with different instruction set architectures (ISA) coupled by a high-speed memory interconnect, where cross-ISA binary incompatibility non-coherent caches require application data be marshaled to shared CPUs. Be...

Shared disks environment (SDE) refers to a distributed architecture for high performance transaction processing. In SDE, the computing nodes are locally coupled via a high-speed network and share a common database at the disk level. To avoid frequent disk accesses, each node caches database pages in its main memory buuer. However, since a particular page may be simultaneously cached in diierent...

Two methods of multiple/large/foreign databases processing using massively parallel computers are described. The first method employs a Distributed Cache Subsystem (DCS) offering the total memory of parallel processing nodes as a very large read-only disk cache for other parallel processing nodes. The second method is based on a Database Slicing (DS) algorithm that provides logical partitioning...

In this paper, we describe the implementation of a caching scheme for ad hoc networks. In this scheme the mobile nodes implement a local cache. This feature allows to intercept the forwarding requests and serve the documents requested directly using their local cache. Using the information obtained by the documents forwarded the nodes can redirect the requests to other nodes that are known to h...

Mobile computing is one of the main emerging technologies in modern era. Mobile computing allows for data transmission, audio and video through a computer or any kind of wireless equipment without connecting to a fixed physical line. Most major problems in mobile computing cache management are data availability, high bandwidth consumption, data access delay and packet loss, failures in database...