Fine-grained multithreading can be used to hide longlatency operations encountered in parallel computers during remote memory access. Instead of using special processor hardware, the emulation of fine-grained multithreading on standard processor hardware is investigated. While emulation of coarse-grained multithreading is common in modern operating systems, in the fine-grained case research on ...

Comparative performance measurements of distributed applications and network protocols require the availability of appropriate network environments. Network emulation approaches offer a flexible way to mimic the properties of a variety of networks. While there are several centralized and distributed emulation tools available that can mimic the behavior of point-to-point links, shared media comm...

Evaluating a proposed control architecture nearly always requires experiments and applications. This paper propose an emulation-based benchmarking framework to design and run such experiments. The proposition is based on an architecture integrating the control system with the virtual controlled system (emulation model), and on generic constructs to build this emulation model. The main feature o...

Modeling a large mobile ad-hoc network is well suited to a cluster computing environment due to its parallel nature. Following the design of high-performance computing systems, uniform and scalable clusters optimized for wireless network emulation can be built using inexpensive commodity hardware. In this paper, we describe our experiences with managing a parallel mobile ad-hoc network emulatio...

As the complexity of the scan algorithm is dependent on the number of design registers, large SoC scan designs can no longer be verified in RTL simulation unless partitioned into smaller sub-blocks. This paper proposes a methodology to decrease scan-chain verification time utilizing SCE-MI, a widely used communication protocol for emulation, and an FPGA-based emulation platform. A high-level (S...

Network emulation has gained wide interest in the community of network researchers to evaluate the effectiveness of new protocols and applications in controllable and realistic network scenarios. To ensure scalability, modern emulation systems rely on the use of virtualization techniques to create complex networked systems by means of the computational resources available in a cluster of comput...

Between the two fundamental digital preservation strategies, migration has been strongly favored. Recent developments in emulation frameworks make it possible to deliver emulations to readers via the Web in ways that make them appear as normal components of Web pages. This removes what was the major barrier to deployment of emulation as a preservation strategy. Barriers remain, the two most imp...

LEE, HEE WON. Network Emulation with Adaptive Time Dilation. (Under the direction of Mihail L. Sichitiu and David Thuente.) In order to evaluate the performance of new network architectures and protocols, researchers have used diverse methods such as theoretical analysis, network simulation, testbed implementation, and emulation. Among these methods, emulation has been widely employed over the ...

The method of emulation is an attractive approach in order to evaluate the performance of communication networks. Compared to simulation, it is especially beneficial when real-world components, e.g., applications or protocols should be included. In this paper, we present the new emulation environment IKREmuLib, which allows for a seamless integration of both the emulation and the simulation dom...

Despite frequent discussions on regional variations in health care expenditure (HCE), few studies account for the sources of such regional disparities. This study bridges this gap in the body of knowledge by taking the following two steps. First, we explore the determinants of regional HCE in Japan, covering a data period that expands the scope of previous studies (i.e., the 2000s). Second, we ...