Monitoring of program behavior is a basic necessity for performance tuning and debugging. A major problem is the overhead associated with the monitoring tasks, which influences the program’s behavior and affects the observation results. At the same time, a certain amount of data is needed for the program analysis activities. For this reason, monitoring approaches have to balance the amount of o...

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Typical data-intensive embedded applications have large amounts of instruction-level parallelism that is often exploited with wide-issue VLIW processors. In contrast, event-driven embedded applications are believed to have very little instruction-level parallelism, so these applications often utilize much simpler processor cores. Programmable network interface cards, for example, utilize thread...

We describe and evaluate a quad 100T ethernet network interface built using an Intel IXP1200 network processor on a commonly available Radisys ENP2505 PCI board. The network interface exports a raw ethernet interface either to the host kernel or to user level for cluster computing applications. We describe the firmware architecture and internal design decisions, then evaluate the resulting netw...

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 networks speeds increase further, network architectu...

There are two complementary trends in the computer and communications fields. Increasing processor power and memory availability allow more demanding applications, such as scientific visualizations and imaging. Advances in network performance and functionality have the potential for supporting applications requiring high bandwidth communications. However, the bottleneck is increasingly in the h...

In existing multicomputers, software overhead dominates the message-passing latency cost. Our research on the SHRIMP project at Princeton indicates that appropriate network interface support can signi cantly reduce this software overhead. We have designed two network interfaces for the SHRIMP multicomputer. Both support virtual memory mapped communication allowing user processes to communicate ...

The wireless communication may help to make a step over the lighting systems limitation, in the inter operability and poor connectivity to the external world. There is a potential in CoAP that is an effective protocol, based on the HTTP. Synergy in the OS Contiky has significant drive for implementation of the heterogeneous communication from one world to the other. Using the IPv6 and its benef...

We define an interface-interaction network (IIN) to capture the specificity and competition between protein-protein interactions (PPI). This new type of network represents interactions between individual interfaces used in functional protein binding and thereby contains the detail necessary to describe the competition and cooperation between any pair of binding partners. Here we establish a gen...