Sketching interface, as a user-friendly means for expression and communication, is not only an important medium for inputting 3D objects, but also a significant step of visualizing user’s conceptual ideas. To bring early sketching interface to network utilities, the paper defines several rules that can create and edit 3D models. These gesture schemes support both regular and freeform modeling, ...

The continuing advances in the performance of network servers make it essential for netw interface cards (NICs) to provide more sophisticated services and data processing. Mod network interfaces provide fixed functionality and are optimized for sending and receiving la packets. One of the key challenges for researchers is to find effective ways to investigate no architectures for these new serv...

We have proposed a new architecture called Axon that meets the challenges of delivering high performance network bandwidth directly to applications. Its pipelines network interface must perform critical per packet processing in hardware a packets flow through the pipeline, without imposing any store-and-forward buffering of packets. This requires the design of error and flow control mechanisms ...

The emergence of fast, cheap embedded processors presents the opportunity for inexpensive processing to occur on the network interface. We are investigating how a system design incorporating such an intelligent network interface can be used to support streaming multimedia applications. We are developing an extensible execution environment, called SPINE, that enables applications to compute dire...

With current low-cost high-performance workstations, application-to-application throughput is limited more by host memory bandwidth than by the cost of protocol processing. Conventional network architectures are inefficient in their use of this memory bandwidth, because data is copied several times between the application and the network. As network speeds increase further, network architecture...

Network performance has improved by over an order-ofmagnitude in the past decade. While, the overall system architecture itself has made modification attempts to match such growth, these changes are mostly “incremental enhancements, tweaks and adjustments” that try to keep the hardware control hierarchy away from the network communication path. However, we are rapidly reaching a stage where the...

With a focus on commodity PC systems, Beowulf clusters traditionally lack the cutting edge network architectures, memory subsystems, and processor technologies found in their more expensive supercomputer counterparts. Many users find that what Beowulf clusters lack in technology, they more than make up for with their significant cost advantage. In this paper, an architectural extension that add...

Many communication networks consist of legacy and new devices using heterogeneous technologies, such as copper wire, optical fiber, wireless and power line communication (PLC). Most network simulators, however, have been designed to work well with a single underlying link layer technology. Furthermore, there are hardly any suitable models for network simulators of PLC. In this paper we present ...

Recent user-level network interfaces have placed an increasing proportion of their functionality in hardware, in order to provide an efficient user-level interface. The performance of such systems is significantly better than that of traditional network architectures, but comes at a cost; namely increasing complexity of the hardware, reduced flexibility and limited scalability. In this paper we...